window.postMessage() - Web APIs
the window.postmessage() method safely enables cross-origin communication between window objects; e.g., between a page and a pop-up that it spawned, or between a page and an iframe embedded within it. normally, scripts on different pages are allowed to access each other if and only if the pages they originate from share the same protocol, port number, and host (also known as the "same-origin policy"). window.postmessage() provides a controlled mechanism to securely circumvent this restriction (if used properly). broadly, one window may obtain a reference to another (e.g., via targetwindow = window.opener), and then dispatch a messageevent on it with targetwindow.postmessage(). the receiving window is then free to handle this event as needed. ...
... the "same-origin policy"). window.postmessage() provides a controlled mechanism to securely circumvent this restriction (if used properly). broadly, one window may obtain a reference to another (e.g., via targetwindow = window.opener), and then dispatch a messageevent on it with targetwindow.postmessage(). the receiving window is then free to handle this event as needed. the arguments passed to window.postmessage() (i.e., the “message”) are exposed to the receiving window through the event object. syntax targetwindow.postmessage(message, targetorigin, [transfer]); targetwindow a reference to the window that will receive the message. ...
...e(). the receiving window is then free to handle this event as needed. the arguments passed to window.postmessage() (i.e., the “message”) are exposed to the receiving window through the event object. syntax targetwindow.postmessage(message, targetorigin, [transfer]); targetwindow a reference to the window that will receive the message. methods for obtaining such a reference include: window.open (to spawn a new window and then reference it), window.opener (to reference the window that spawned this one), htmliframeelement.contentwindow (to reference an embedded <iframe> from its parent window), window.parent (to reference the parent window from within an embedded <iframe>), or window.frames + an index value (named or numeric). ...
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Adding windows and dialogs - Archive of obsolete content
« previousnext » opening windows and dialogs to open a new window, use the javascript window.open function just like with html windows. window.open( "chrome://xulschoolhello/content/somewindow.xul", "xulschoolhello-some-window", "chrome,centerscreen"); the first argument is the url to open, the second is an id to identify the window, and the last is an optional comma-separated list of features, which describe the behavior and appearance of the window. if this value is null or empty, the default toolbars of the main window will be added to the new one, which is rarely what you want. the window.open page has a detailed description of the features you can use and their values. the following features are very important and you should always keep them in mind: chrome. this can...
... rarely what you want. the window.open page has a detailed description of the features you can use and their values. the following features are very important and you should always keep them in mind: chrome. this can only be used from the chrome, not from regular html javascript. it indicates that a chrome document is being opened, not a web page. this means that the document defines the whole window, and not only the inner content area. you should always include it when opening a xul window or dialog. modal. modal windows block their parent window until action is taken on them. an alert window is an example of this. modal windows should be avoided when possible because they interrupt the user's browsing and can become annoying very quickly. this feature should only be used when there's no w...
...en opening a xul window or dialog. modal. modal windows block their parent window until action is taken on them. an alert window is an example of this. modal windows should be avoided when possible because they interrupt the user's browsing and can become annoying very quickly. this feature should only be used when there's no way to continue without having the user do something. never open modal windows at startup. resizable. indicates the user can resize the window or not. in general, windows should not be resizable unless they display dynamically generated content from a datasource, such as lists or trees that may need resizing to have a better view of the content. to open a new dialog, use the function window.opendialog, an extension of the open function. it allows you to send a set of op...
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WindowOrWorkerGlobalScope.setTimeout() - Web APIs
syntax var timeoutid = scope.settimeout(function[, delay, arg1, arg2, ...]); var timeoutid = scope.settimeout(function[, delay]); var timeoutid = scope.settimeout(code[, delay]); parameters function a function to be executed after the timer expires. code an alternative syntax that allows you to include a string instead of a function, which is compiled and executed when the timer expires. this syntax is not recommended for the same reasons that make using eval() a security risk. ...
... to be aware that settimeout() and setinterval() share the same pool of ids, and that cleartimeout() and clearinterval() can technically be used interchangeably. for clarity, however, you should try to always match them to avoid confusion when maintaining your code. it is guaranteed that a timeout id will never be reused by a subsequent call to settimeout() or setinterval() on the same object (a window or a worker). however, different objects use separate pools of ids. example the following example sets up two simple buttons in a web page and hooks them to the settimeout() and cleartimeout() routines. pressing the first button will set a timeout which calls an alert dialog after two seconds and stores the timeout id for use by cleartimeout(). you may optionally cancel this timeout by pressing...
...after two seconds and stores the timeout id for use by cleartimeout(). you may optionally cancel this timeout by pressing on the second button. html <p>live example</p> <button onclick="delayedalert();">show an alert box after two seconds</button> <p></p> <button onclick="clearalert();">cancel alert before it happens</button> javascript var timeoutid; function delayedalert() { timeoutid = window.settimeout(window.alert, 2*1000, 'that was really slow!'); } function clearalert() { window.cleartimeout(timeoutid); } result see also cleartimeout() example. polyfill if you need to pass one or more arguments to your callback function, but need it to work in browsers which don't support sending additional arguments using either settimeout() or setinterval() (e.g., internet explorer 9 a...
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WindowOrWorkerGlobalScope.setInterval() - Web APIs
syntax var intervalid = scope.setinterval(func, [delay, arg1, arg2, ...]); var intervalid = scope.setinterval(function[, delay]); var intervalid = scope.setinterval(code, [delay]); parameters func a function to be executed every delay milliseconds. the function is not passed any arguments, and no return value is expected. ...
...: passing additional arguments to setinterval() in the first syntax does not work in internet explorer 9 and earlier. if you want to enable this functionality on that browser, you must use a polyfill (see the callback arguments section). return value the returned intervalid is a numeric, non-zero value which identifies the timer created by the call to setinterval(); this value can be passed to windoworworkerglobalscope.clearinterval() to cancel the timeout. it may be helpful to be aware that setinterval() and settimeout() share the same pool of ids, and that clearinterval() and cleartimeout() can technically be used interchangeably. for clarity, however, you should try to always match them to avoid confusion when maintaining your code. note: the delay argument is converted to a signed 32-bi...
...geably. for clarity, however, you should try to always match them to avoid confusion when maintaining your code. note: the delay argument is converted to a signed 32-bit integer. this effectively limits delay to 2147483647 ms, since it's specified as a signed integer in the idl. examples example 1: basic syntax the following example demonstrates setinterval()'s basic syntax. var intervalid = window.setinterval(mycallback, 500, 'parameter 1', 'parameter 2'); function mycallback(a, b) { // your code here // parameters are purely optional. console.log(a); console.log(b); } example 2: alternating two colors the following example calls the flashtext() function once a second until the stop button is pressed. <!doctype html> <html> <head> <meta charset="utf-8" /> <title>setinterval/cl...
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Creating a Window - Archive of obsolete content
snext » we're going to be creating a simple find files utility throughout this tutorial. first, however, we should look at the basic syntax of a xul file. creating a xul file an xul file can be given any name but it really should have a .xul extension. ...
...to be creating a simple find files utility throughout this tutorial. first, however, we should look at the basic syntax of a xul file. creating a xul file an xul file can be given any name but it really should have a .xul extension. ...
... file can be given any name but it really should have a .xul extension. the simplest xul file has the following structure: <?xml version="1.0"?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <window id="findfile-window" title="find files" orient="horizontal" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <!-- other elements go here --> </window> this window will not do anything since it doesn't contain any ui elements. those will be added in the next section. in fact, there will not be shown any window at all. if you want to force the window to become visible you can add the width and height attribute to the window tag. here is a line by line breakdown of the code above: <?xml version="1.0"?> this line simply declares that this i...
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nsIXULWindow
xpfe/appshell/nsixulwindow.idlscriptable please add a summary to this article. inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) an nsixulwindow is created as part of the creation of a top-level chrome window. when the window is destroyed, it will fire a "xul-window-destroyed" notification through the global observer service. this signals the application in case it needs to quit. ...
.... inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) an nsixulwindow is created as part of the creation of a top-level chrome window. when the window is destroyed, it will fire a "xul-window-destroyed" notification through the global observer service. this signals the application in case it needs to quit. ...
...om: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) an nsixulwindow is created as part of the creation of a top-level chrome window. when the window is destroyed, it will fire a "xul-window-destroyed" notification through the global observer service. this signals the application in case it needs to quit. ...
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Windows - Archive of obsolete content
this article offers code snippets demonstrating common tasks you may wish to perform. opening new browser windows to open a new browser window, you can simply use window.open(). however, window.open() returns a window object for content, not for the browser window itself, so you should get the chrome window first. the simplest way to do that is to use nsiwindowmediator. ...
... this article offers code snippets demonstrating common tasks you may wish to perform. opening new browser windows to open a new browser window, you can simply use window.open(). however, window.open() returns a window object for content, not for the browser window itself, so you should get the chrome window first. the simplest way to do that is to use nsiwindowmediator. ...
...ode snippets demonstrating common tasks you may wish to perform. opening new browser windows to open a new browser window, you can simply use window.open(). however, window.open() returns a window object for content, not for the browser window itself, so you should get the chrome window first. the simplest way to do that is to use nsiwindowmediator. ...
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NPWindow - Archive of obsolete content
« gecko plugin api reference « plug-in side plug-in api summary contains information about the target into which the plug-in instance can draw. ...
... « gecko plugin api reference « plug-in side plug-in api summary contains information about the target into which the plug-in instance can draw. ...
... « gecko plugin api reference « plug-in side plug-in api summary contains information about the target into which the plug-in instance can draw. ...
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NPP_SetWindow - Archive of obsolete content
returns if successful, the function returns nperr_no_error. ...
... returns if successful, the function returns nperr_no_error. ...
... returns if successful, the function returns nperr_no_error. ...
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Popup Window Controls - Archive of obsolete content
mozilla and firefox allow users to control most unsolicited attempts to open new windows such as popup and popunder windows. learn how to detect popup controls, how to ask your readers to enable popups for your site and how to get the benefits of popup windows without using popup windows. ...
... mozilla and firefox allow users to control most unsolicited attempts to open new windows such as popup and popunder windows. learn how to detect popup controls, how to ask your readers to enable popups for your site and how to get the benefits of popup windows without using popup windows. ...
... mozilla and firefox allow users to control most unsolicited attempts to open new windows such as popup and popunder windows. learn how to detect popup controls, how to ask your readers to enable popups for your site and how to get the benefits of popup windows without using popup windows. ...
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nsIDOMWindowInternal
dom/interfaces/base/nsidomwindowinternal.idlscriptable this interface is part of a chain of interfaces used to represent a window in the dom. 66 introduced gecko 1.0 deprecated gecko 8.0 inherits from: nsidomwindow last changed in gecko 7.0 (firefox 7.0 / thunderbird 7.0 / seamonkey 2.4) in gecko 8.0 this interface was merged into the nsidomwindow interface. this interface no longer has any members; it exists solely to prevent add-ons that reference it from failing completely. add-ons should be updated to use nsidomwindow instead. it provides many of the common functions used in javascript such as alert() or open(). ...
...erbird 7.0 / seamonkey 2.4) in gecko 8.0 this interface was merged into the nsidomwindow interface. this interface no longer has any members; it exists solely to prevent add-ons that reference it from failing completely. add-ons should be updated to use nsidomwindow instead. it provides many of the common functions used in javascript such as alert() or open(). note: because most of nsidomwindowinternal's functions and attributes are well documented in window, those articles are linked to rather than re-documented. however, they are not guaranteed to document all available arguments (i.e. see window.prompt). method overview firefox 3.5 note the prompt() and find() methods changed in firefox 3.5 to make all their parameters optional; in previous versions, all parameters were require...
...d blur() void back() void forward() void home() void stop() void print() void moveto(in long xpos, in long ypos) void moveby(in long xdif, in long ydif) void resizeto(in long width, in long height) void resizeby(in long widthdif, in long heightdif) void scroll(in long xscroll, in long yscroll) nsidomwindow window interface's open() method loads the specified resource into the browsing context (window, <iframe> or tab) with the specified name. if the name doesn't exist, then a new window is opened and the specified resource is loaded into its browsing context.">open(in domstring url, in domstring name, in domstring options) nsidomwindow nsisupports aextraargument) void close() ...
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Creating toolbar buttons (Customize Toolbar Window) - Archive of obsolete content
step is to create an overlay for the document containing the toolbar you wish to enhance. explaining overlays is beyond the scope of this tutorial -- you can read about them in the xul tutorial. to overlay a document, you need to know its uri. you can find a list of uris for the most commonly overlaid documents at the bottom of this page. note: some people overlay chrome://messenger/content/mailwindowoverlay.xul. that should cause the button to appear on all windows that mailwindowoverlay.xul is applied to (i.e. main window and view message window). this needs to be looked into. adding the toolbar button toolkit applications have customizable toolbars; therefore, it's common practice for extensions to add their toolbar buttons to the toolbar palette, rather than adding them directly to the t...
...ery easy. just add code like this to your overlay: <toolbarpalette id="browsertoolbarpalette"> <toolbarbutton id="myextension-button" class="toolbarbutton-1" label="&toolbarbutton.label;" tooltiptext="&toolbarbutton.tooltip;" oncommand="myextension.ontoolbarbuttoncommand(event);"/> </toolbarpalette> notes: the id of the palette (browsertoolbarpalette in the example) depends on the window (the parent window of the toolbar you wish to insert a button). see below for the list of common palette ids. class="toolbarbutton-1" makes the toolbar button appear correctly in icons and text mode; it also adjusts padding. set the command to be executed when the button is clicked in the oncommand attribute. if you need to handle middle-click, add this line after the oncommand line. onclic...
... use the following css rules: /* skin/toolbar-button.css */ #myextension-button { list-style-image: url("chrome://myextension/skin/btn_large.png"); } toolbar[iconsize="small"] #myextension-button { list-style-image: url("chrome://myextension/skin/btn_small.png"); } applying the stylesheet remember to attach the stylesheet you created to both the overlay file and the customize toolbar window. to attach it to the overlay, put this processing instruction (pi) at the top of the overlay file: <?xml-stylesheet href="chrome://myextension/skin/toolbar-button.css" type="text/css"?> note: the css file with your toolbar styles needs to be included in the overlay file, as you would expect, but also in the chrome.manifest file. this is very important because the toolbar customization dialog w...
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Debugging on Windows
if vc++ and your mozilla application hang shortly after you launch the application under the debugger, see problems loading debug symbols. ways to start the debugger first of all, it's necessary to install a visual studio extension to be able to follow child processes as they are created. firefox, in general, and even in non-e10s mode, does not start the main process directly, it starts it via a launcher process. ...
...oint (and even notifies you that it cannot find their location). microsoft child process debugging power tool allows automatically attaching to child processes, such as web content process, gpu process, etc. enable it by going its configuration menu in "debug > other debugging targets > child process debugging settings", and ticking the box. if you have followed the steps in building firefox for windows and have a local debug build, you can execute ./mach run --debug from the same command line. it would open visual studio with firefox's run options configured. you can click "start" button to run firefox then, already attached in the debugger. alternatively, if you have generated the visual studio solution, via ./mach build-backend -b visualstudio, opening this solution allows you to run firefo...
...visual c++ debugger for details. ...
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nsIDOMWindow
dom/interfaces/base/nsidomwindow.idlscriptable this interface is the primary interface for a window object. it represents a single window object that may contain child windows if the document in the window contains an html frameset document, or if the document contains iframe elements. 66 introduced gecko 1.0 deprecated gecko 44 inherits from: nsisupports last changed in gecko 7.0 (firefox 7.0 / thunderbird 7.0 / seamonkey 2.4) starting with firefox 44, this file is empty as its features were either no longer used or are only available from c++ code; see dom/base/nspidomwindow.h for those. while this interface is not officially defined by any standard bodies, it originates from the de-facto dom level 0 standard. ...
...ts last changed in gecko 7.0 (firefox 7.0 / thunderbird 7.0 / seamonkey 2.4) starting with firefox 44, this file is empty as its features were either no longer used or are only available from c++ code; see dom/base/nspidomwindow.h for those. while this interface is not officially defined by any standard bodies, it originates from the de-facto dom level 0 standard. starting in firefox 3, dom windows are actually based on nsidomwindow2, which is a subclass of nsidomwindow that adds some new features to this interface. in gecko 7.0 nsidomwindow2 has been merged into this interface. in gecko 8.0 nsidomstoragewindow and nsidomwindowinternal have been merged into this interface. method overview nsidomcssstyledeclaration getcomputedstyle(in nsidomelement elt, [optional] in domstring ...
... void scrollby(in long xscrolldif, in long yscrolldif); void scrollbylines(in long numlines); void scrollbypages(in long numpages); void scrollto(in long xscroll, in long yscroll); void sizetocontent(); attributes attribute type description applicationcache nsidomofflineresourcelist get the application cache object for this window. read only. note: prior to gecko 7.0 this attribute was part of nsidomwindow2. document nsidomdocument the document contained in the window. read only. frames nsidomwindowcollection the child windows for this window. read only. native code only! globalstorage nsidomstoragelist global storage, accessible by domain. read only. note: prior to gecko 8.0 th...
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MSCandidateWindowShow - Web APIs
non-standard this feature is non-standard and is not on a standards track. do not use it on production sites facing the web: it will not work for every user. there may also be large incompatibilities between implementations and the behavior may change in the future. mscandidatewindowshow fires immediately after the input method editor (ime) candidate window is set to appear, but before it renders. this proprietary method is specific to internet explorer. general info synchronous no bubbles no cancelable no note windows 8.1 and windows 7 imes for certain languages on internet explorer for the desktop might not support this event. on internet explorer in the new windows ui, this event is supported in windows 8.1 imes of all languages. syntax ...
...prietary method is specific to internet explorer. general info synchronous no bubbles no cancelable no note windows 8.1 and windows 7 imes for certain languages on internet explorer for the desktop might not support this event. on internet explorer in the new windows ui, this event is supported in windows 8.1 imes of all languages. syntax event property object.oncandidatewindowshow = handler; addeventlistener method object.addeventlistener("mscandidatewindowshow", handler, usecapture) parameters pevtobj [in] type: ihtmleventobj pointer to an ihtmleventobj interface for the current event. this event fires after the positioning information of the ime candidate window has been determined. you can obtain the positioning information using the getcand...
...= handler; addeventlistener method object.addeventlistener("mscandidatewindowshow", handler, usecapture) parameters pevtobj [in] type: ihtmleventobj pointer to an ihtmleventobj interface for the current event. this event fires after the positioning information of the ime candidate window has been determined. you can obtain the positioning information using the getcandidatewindowclientrect method, and adjust your layout as needed to avoid any occlusions with the ime candidate window. web applications need only register for this event once per element (the handler will remain valid for the lifetime of the element). ...
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Features of a Window - Archive of obsolete content
« previousnext » we've already seen some features of windows. we'll look at some more in this section. creating another window you can create a second window for your application in the same manner as you would create the first one. just create a second xul file with the window code in it. as in html, you can use the window interface's open() method loads the specified resource into the browsing context (window, <iframe> or tab) with the specified name. if the name doesn't exist, then a new window is opened and the specified resource is loaded into its browsing context.">window.open() function to open the second window. this function will return a reference to the newly opened window. you can use this reference to call functions of the other window. the open function takes three argum...
... new window is opened and the specified resource is loaded into its browsing context.">window.open() function to open the second window. this function will return a reference to the newly opened window. you can use this reference to call functions of the other window. the open function takes three arguments. the first is the url of the file you wish to open. the second is an internal name of the window. the third is a list of display flags. the flag 'chrome' is important to open the window as a chrome file. if you do not add the 'chrome' flag, the file will open up as the content in a browser window. ...
...l functions of the other window. the open function takes three arguments. the first is the url of the file you wish to open. the second is an internal name of the window. the third is a list of display flags. the flag 'chrome' is important to open the window as a chrome file. if you do not add the 'chrome' flag, the file will open up as the content in a browser window. for example: var mywin = window.open("chrome://findfile/content/findfile.xul", "findfile", "chrome"); specifying the width and height you should have noticed that whenever elements were added to a window, the window's width expanded to fit the new elements. the window is really just a box which is flexible and defaults to vertical orientation. you can also specify the width and height directly on the window tag. this, of cour...
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Windows and menus in XULRunner - Archive of obsolete content
« previousnext » our quest to build a basic desktop application using xulrunner continues. last time i installed xulrunner and built a very simple, bare-bones test application. this time i want to add some of the things common to a desktop application user interface: windows and dialogs menus and toolbars os common dialogs controls or widgets windows each window or dialog should be created in its own xul file. the xul file may also contain other top-level declarations for css and dtd, which i will discuss in a moment. <window> is the basic windowing element in xul. it has attributes to set the title/caption as well as to control its width and height. although i have not seen it mentioned yet, i am assuming that you can only have one <window> element per xul file. here ...
...the css is used to apply formatting to elements, just as it would in html. ...
... element in xul. it has attributes to set the title/caption as well as to control its width and height. although i have not seen it mentioned yet, i am assuming that you can only have one <window> element per xul file. here is an example: <?xml version="1.0"?> <?xml-stylesheet href="chrome://basicapp/skin/main.css" type="text/css"?> <!doctype window system "chrome://basicapp/locale/main.dtd"> <window id="main" title="&title;" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <script src="main.js"/> ... </window> notice the references to css and dtd files. the css is used to apply formatting to elements, just as it would in html. the dtd is used to create entity references so strings for titles and labels are not stored directly in the xul file; this makes upda...
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window.cancelAnimationFrame() - Web APIs
other browsers can use something like date.now(). ...
...other browsers can use something like date.now(). ...
...other browsers can use something like date.now(). ...
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Window.outerWidth - Web APIs
working draft initial definition. ...
... working draft initial definition. ...
... working draft initial definition. ...
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Window.screenX - Web APIs
the window.screenx read-only property returns the horizontal distance, in css pixels, of the left border of the user's browser viewport to the left side of the screen. note: an alias of screenx was implemented across modern browsers in more recent times — window.screenleft. this was originally supported only in ie but was introduced everywhere due to popularity. syntax leftwindowpos = window.screenx returns a number equal to the number of css pixels from the left edge of the browser viewport to the left edge of the screen. examples in our screenleft-screentop (source code) example, you'll see a canvas onto which has been drawn a circle. ...
... originally supported only in ie but was introduced everywhere due to popularity. syntax leftwindowpos = window.screenx returns a number equal to the number of css pixels from the left edge of the browser viewport to the left edge of the screen. examples in our screenleft-screentop (source code) example, you'll see a canvas onto which has been drawn a circle. in this example we are using window.screenleft/window.screentop plus window.requestanimationframe() to constantly redraw the circle in the same physical position on the screen, even if the window position is moved. ...
...e browser viewport to the left edge of the screen. examples in our screenleft-screentop (source code) example, you'll see a canvas onto which has been drawn a circle. in this example we are using window.screenleft/window.screentop plus window.requestanimationframe() to constantly redraw the circle in the same physical position on the screen, even if the window position is moved. ...
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Window.screenY - Web APIs
the window.screeny read-only property returns the vertical distance, in css pixels, of the top border of the user's browser viewport to the top edge of the screen. note: an alias of screeny was implemented across modern browsers in more recent times — window.screentop. this was originally supported only in ie but was introduced everywhere due to popularity. syntax topwindowpos = window.screeny returns a number equal to the number of css pixels from the top edge of the browser viewport to the top edge of the screen. examples in our screenleft-screentop example, you'll see a canvas onto which has been drawn a circle. ...
...reentop. this was originally supported only in ie but was introduced everywhere due to popularity. syntax topwindowpos = window.screeny returns a number equal to the number of css pixels from the top edge of the browser viewport to the top edge of the screen. examples in our screenleft-screentop example, you'll see a canvas onto which has been drawn a circle. in this example we are using window.screenleft/window.screentop plus window.requestanimationframe() to constantly redraw the circle in the same physical position on the screen, even if the window position is moved. ...
... top edge of the browser viewport to the top edge of the screen. examples in our screenleft-screentop example, you'll see a canvas onto which has been drawn a circle. in this example we are using window.screenleft/window.screentop plus window.requestanimationframe() to constantly redraw the circle in the same physical position on the screen, even if the window position is moved. ...
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WindowEventHandlers.onhashchange - Web APIs
if it equals #cool-feature, the script logs a message to the console. ...
...if it equals #cool-feature, the script logs a message to the console. ...
...if it equals #cool-feature, the script logs a message to the console. ...
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nsITaskbarWindowPreview
this interface's primary purpose is to let gecko applications take control over parts of the preview; however, certain parts of the preview are not controlled using this interface. ...
...this interface's primary purpose is to let gecko applications take control over parts of the preview; however, certain parts of the preview are not controlled using this interface. ...
...this interface's primary purpose is to let gecko applications take control over parts of the preview; however, certain parts of the preview are not controlled using this interface. ...
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Cached compose window FAQ
warning: the content of this article may be out of date. it was imported from mozilla.org and last updated in 2003. seth spitzer (sspitzer@mozilla.org) what is the "cached" compose window? ...
... warning: the content of this article may be out of date. it was imported from mozilla.org and last updated in 2003. seth spitzer (sspitzer@mozilla.org) what is the "cached" compose window? ...
... warning: the content of this article may be out of date. it was imported from mozilla.org and last updated in 2003. seth spitzer (sspitzer@mozilla.org) what is the "cached" compose window? ...
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Window.openDialog() - Web APIs
window.opendialog() is an extension to window.open(). it behaves the same, except that it can optionally take one or more parameters past windowfeatures, and windowfeatures itself is treated a little differently. the optional parameters, if present, are bundled up in a javascript array object and added to the newly created window as a property named window.arguments. they may be referenced in the javascript of the window at any time, including during the execution of a load handler. these parameters may be used, then, to pass arguments to and from the dialog window. the call to opendialog() returns immediately. if you want the call to block until the user has closed the dialog, supply modal as a windowfeatures parameter. note that this also means the user won't be able to interact w...
...t of the window at any time, including during the execution of a load handler. these parameters may be used, then, to pass arguments to and from the dialog window. the call to opendialog() returns immediately. if you want the call to block until the user has closed the dialog, supply modal as a windowfeatures parameter. note that this also means the user won't be able to interact with the opener window until he closes the modal dialog. syntax newwindow = opendialog(url, name, features, arg1, arg2, ...) newwindow the opened window url the url to be loaded in the newly opened window. name the window name (optional). see window.open() description for detailed information. features see window.open() for details. arg1, arg2, ... ...
... the opener window until he closes the modal dialog. syntax newwindow = opendialog(url, name, features, arg1, arg2, ...) newwindow the opened window url the url to be loaded in the newly opened window. name the window name (optional). see window.open() description for detailed information. features see window.open() for details. arg1, arg2, ... the arguments to be passed to the new window (optional). example var win = opendialog("http://example.tld/zzz.xul", "dlg", "", "pizza", 6.98); notes new features all - initially activates (or deactivates ("all=no")) all chrome (except the behavior flags chrome, dialog and modal). these can be overridden (so "menubar=no,all" turns on all chrome except the menubar.) this feature is explicitly ignored by window.open(). ...
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WindowEventHandlers - Web APIs
the windoweventhandlers mixin describes the event handlers common to several interfaces like window, or htmlbodyelement and htmlframesetelement. each of these interfaces can implement additional specific event handlers. note: windoweventhandlers is a mixin and not an interface; you can't actually create an object of type windoweventhandlers. properties the events properties, of the form onxyz, are defined on the windoweventhandlers, and implemented by window, and workerglobalscope for web workers. windoweventhandlers.onafterprint is an eventhandler representing the code to be called when the afterprint event is raised. windoweventhandlers.onbeforeprint is an eventhandler representing the code to be called when the beforeprint event is raised. ...
...vents properties, of the form onxyz, are defined on the windoweventhandlers, and implemented by window, and workerglobalscope for web workers. windoweventhandlers.onafterprint is an eventhandler representing the code to be called when the afterprint event is raised. windoweventhandlers.onbeforeprint is an eventhandler representing the code to be called when the beforeprint event is raised. windoweventhandlers.onbeforeunload is an eventhandler representing the code to be called when the beforeunload event is raised. windoweventhandlers.onhashchange is an eventhandler representing the code to be called when the hashchange event is raised. ...
...ent is raised. windoweventhandlers.onbeforeprint is an eventhandler representing the code to be called when the beforeprint event is raised. windoweventhandlers.onbeforeunload is an eventhandler representing the code to be called when the beforeunload event is raised. windoweventhandlers.onhashchange is an eventhandler representing the code to be called when the hashchange event is raised. windoweventhandlers.onlanguagechange is an eventhandler representing the code to be called when the languagechange event is raised. windoweventhandlers.onmessage is an eventhandler representing the code to be called when the message event is raised. windoweventhandlers.onmessageerror is an eventhandler representing the code to be called when the messageerror event is raised. ...
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Windows SDK versions
mozilla, from time to time, might support building against multiple versions of the windows sdk as a compatibility/transitional measure. if it does, several features will be disabled if you build with an sdk older than the default, which means that you'll have to specify a non-default sdk version explicitly. quick start follow the instructions for whichever version of visual c++ you're using. visual studio professional 2013 this comes with the windows 8.1 sdk included. visual studio express 2013 for windows desktop this comes with the windows 8.1 sdk included. visual studio professional 2012 this comes with the windows 8.0 sdk included. visual studio 2012 express for windows desktop this comes with the windows 8.0 sdk included. visual c++ 10 (vs2010) professional this comes with the wind...
...indows desktop this comes with the windows 8.1 sdk included. visual studio professional 2012 this comes with the windows 8.0 sdk included. visual studio 2012 express for windows desktop this comes with the windows 8.0 sdk included. visual c++ 10 (vs2010) professional this comes with the windows 7 sdk, so you should be all set out of the box. visual c++ 10 (vs2010) express download and install the windows 7 sdk. older versions some of the older version are no longer supported, further information is available at obsolete build caveats and tips [en-us] under the windows sdk article. ...
...is comes with the windows 8.0 sdk included. visual c++ 10 (vs2010) professional this comes with the windows 7 sdk, so you should be all set out of the box. visual c++ 10 (vs2010) express download and install the windows 7 sdk. older versions some of the older version are no longer supported, further information is available at obsolete build caveats and tips [en-us] under the windows sdk article. windows 8 sdk (official) features that depend on this sdk include: metro firefox front end gamepad api support you can download the sdk from the microsoft download center [web setup]. ...
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nsIDOMChromeWindow
dom/interfaces/base/nsidomchromewindow.idlscriptable this interface is implemented on the window object in chrome. inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) method overview void beginwindowmove(in nsidomevent mousedownevent); void getattention(); void getattentionwithcyclecount(in long acyclecount); void maximize(); void minimize(); void notifydefaultbuttonloaded(in nsidomelement defaultbutton); void restore(); void setcursor(in domstring cursor); attributes attribute type description browserdomwindow nsibrowserdomwindow the related nsibrowserdomwindow instance which provides access to yet another layer of utility functions by chrome script. ...
...ecount); void maximize(); void minimize(); void notifydefaultbuttonloaded(in nsidomelement defaultbutton); void restore(); void setcursor(in domstring cursor); attributes attribute type description browserdomwindow nsibrowserdomwindow the related nsibrowserdomwindow instance which provides access to yet another layer of utility functions by chrome script. it will be null for domwindows not corresponding to browsers. messagemanager nsichromeframemessagemanager read only. title domstring obsolete since gecko 1.9.1 windowstate unsigned short returns current window state, the value is one of state_* constants. read only. constants constant value description state_maximized 1 the window is maximized. state_minimized 2 the window is minimized. state_normal 3 the ...
...s not corresponding to browsers. messagemanager nsichromeframemessagemanager read only. title domstring obsolete since gecko 1.9.1 windowstate unsigned short returns current window state, the value is one of state_* constants. read only. constants constant value description state_maximized 1 the window is maximized. state_minimized 2 the window is minimized. state_normal 3 the window is normal. state_fullscreen 4 the window is in full screen mode. methods beginwindowmove() on some operating systems, we must allow the window manager to handle window dragging. this method tells the window manager to start dragging the window. ...
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nsIMsgWindow
mailnews/base/public/nsimsgwindow.idlscriptable please add a summary to this article. inherits from: nsisupports last changed in gecko 8 (firefox 8 / thunderbird 8 / seamonkey 2.5) implemented by: @mozilla.org/messenger/msgwindow;1. to create an instance, use: msgwindow = components.classes["@mozilla.org/messenger/msgwindow;1"] .createinstance(components.interfaces.nsimsgwindow); in thunderbird the default message window is stored in the global variable msgwindow. ...
... statusfeedback nsimsgstatusfeedback this allows the backend code to send status feedback to the ui. ...
... statusfeedback nsimsgstatusfeedback this allows the backend code to send status feedback to the ui. ...
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nsIWindowsRegKey
xpcom/ds/nsiwindowsregkey.idlscriptable this interface is designed to provide scriptable access to the windows registry system. 1.0 66 introduced gecko 1.8 inherits from: nsisupports last changed in gecko 1.8 (firefox 1.5 / thunderbird 1.5 / seamonkey 1.0) the interface represents a single key in the registry. this interface is highly win32 specific. ...
...y system. 1.0 66 introduced gecko 1.8 inherits from: nsisupports last changed in gecko 1.8 (firefox 1.5 / thunderbird 1.5 / seamonkey 1.0) the interface represents a single key in the registry. this interface is highly win32 specific. ...
...g getchildname(in unsigned long index); astring getvaluename(in unsigned long index); unsigned long getvaluetype(in astring name); boolean haschanged(); boolean haschild(in astring name); boolean hasvalue(in astring name); boolean iswatching(); void open(in unsigned long rootkey, in astring relpath, in unsigned long mode); nsiwindowsregkey openchild(in astring relpath, in unsigned long mode); acstring readbinaryvalue(in astring name); unsigned long long readint64value(in astring name); unsigned long readintvalue(in astring name); astring readstringvalue(in astring name); void removechild(in astring relpath); void removevalue(in astring name); void startwatching(i...
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Window: resize event - Web APIs
the resize event fires when the document view (window) has been resized. bubbles no cancelable no interface uievent event handler property onresize in some earlier browsers it was possible to register resize event handlers on any html element. it is still possible to set onresize attributes or use addeventlistener() to set a handler on any element. however, resize events are only fired on the window object (i.e. returned by document.defaultview). only handlers registered on the window object will receive resize events. there is a proposal to allow all elements to be notified of resize changes. see resize observer to read the draft document, and github issues to read the on-going discussions. ...
...er() to set a handler on any element. however, resize events are only fired on the window object (i.e. returned by document.defaultview). only handlers registered on the window object will receive resize events. there is a proposal to allow all elements to be notified of resize changes. see resize observer to read the draft document, and github issues to read the on-going discussions. examples window size logger the following example reports the window size each time it is resized. bear in mind that since the example is running in an <iframe>, you'll need to actually get the <iframe> to resize before you see an effect. ...
... to be notified of resize changes. see resize observer to read the draft document, and github issues to read the on-going discussions. examples window size logger the following example reports the window size each time it is resized. bear in mind that since the example is running in an <iframe>, you'll need to actually get the <iframe> to resize before you see an effect. ...
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Window.screenLeft - Web APIs
the window.screenleft read-only property returns the horizontal distance, in css pixels, from the left border of the user's browser viewport to the left side of the screen. note: screenleft is an alias of the older window.screenx property. screenleft was originally supported only in ie but was introduced everywhere due to popularity. syntax leftwindowpos = window.screenleft returns a number equal to the number of css pixels from the left edge of the browser viewport to the left edge of the screen. examples in our screenleft-screentop example, you'll see a canvas onto which has been drawn a circle. ...
...ported only in ie but was introduced everywhere due to popularity. syntax leftwindowpos = window.screenleft returns a number equal to the number of css pixels from the left edge of the browser viewport to the left edge of the screen. examples in our screenleft-screentop example, you'll see a canvas onto which has been drawn a circle. in this example we are using screenleft/screentop plus window.requestanimationframe() to constantly redraw the circle in the same physical position on the screen, even if the window position is moved. ...
...els from the left edge of the browser viewport to the left edge of the screen. examples in our screenleft-screentop example, you'll see a canvas onto which has been drawn a circle. in this example we are using screenleft/screentop plus window.requestanimationframe() to constantly redraw the circle in the same physical position on the screen, even if the window position is moved. ...
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Window.screenTop - Web APIs
the window.screentop read-only property returns the vertical distance, in css pixels, from the top border of the user's browser viewport to the top side of the screen. note: screentop is an alias of the older window.screeny property. screentop was originally supported only in ie but was introduced everywhere due to popularity. syntax topwindowpos = window.screentop returns a number equal to the number of css pixels from the top edge of the browser viewport to the top edge of the screen. examples in our screenleft-screentop example, you'll see a canvas onto which has been drawn a circle. ...
... supported only in ie but was introduced everywhere due to popularity. syntax topwindowpos = window.screentop returns a number equal to the number of css pixels from the top edge of the browser viewport to the top edge of the screen. examples in our screenleft-screentop example, you'll see a canvas onto which has been drawn a circle. in this example we are using screenleft/screentop plus window.requestanimationframe() to constantly redraw the circle in the same physical position on the screen, even if the window position is moved. ...
...ixels from the top edge of the browser viewport to the top edge of the screen. examples in our screenleft-screentop example, you'll see a canvas onto which has been drawn a circle. in this example we are using screenleft/screentop plus window.requestanimationframe() to constantly redraw the circle in the same physical position on the screen, even if the window position is moved. ...
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WindowProxy - Web APIs
living standard initial definition. ...
... living standard initial definition. ...
... living standard initial definition. ...
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Installing plugins to Gecko embedding browsers on Windows - Archive of obsolete content
this information applies to mozilla based browsers that pull the mozilla codebase after the mozilla 0.9.1 milestone release. none of the registry keys mentioned here are written by browsers before the mozilla 0.9.1 timeframe. ...
...this information applies to mozilla based browsers that pull the mozilla codebase after the mozilla 0.9.1 milestone release. none of the registry keys mentioned here are written by browsers before the mozilla 0.9.1 timeframe. ...
...e 6.1, 6.2.x, netscape 7.0 (and up), mozilla 1.0, and compuserve 7.0 this section details the suggested mechanism to find out where to install the plugin dll so that it is picked up by mozilla based browsers on the desktop. go to hkey_local_machine\software\mozilla caveat emptor: if the mozilla subkey is not present under hkey_local_machine, look under hkey_current_user\software\mozilla\. on windows xp and windows 2000, in order to write to the registry, sometimes the software may need administrator privileges. thus, some mozilla based browsers, such as the netscape 6 installer, write to the hkey_current_user key in addition; this doesn't require administrator privileges. traditionally, hkey_current_user is a copy of everything in hkey_local_machine. the mozilla subkey is written under hkey...
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Autodial for Windows NT - Archive of obsolete content
warning: the content of this article may be out of date. it was last updated in 2002. introduction this document is intended to explain how the autodial helper feature implemented for bug 93002 works and why it works that way. a brief history of autodial on windows in the consumer versions of windows, (windows 95, windows 98, windows me) autodial for all applications is controlled from the control panel, in the internet options applet, under the tab connections. ...
...ument is intended to explain how the autodial helper feature implemented for bug 93002 works and why it works that way. a brief history of autodial on windows in the consumer versions of windows, (windows 95, windows 98, windows me) autodial for all applications is controlled from the control panel, in the internet options applet, under the tab connections. if you turn on the autodial feature, windows will automatically dial whenever any application tries to access a network address that can't be reached. technically, this control panel applet (internet options) is part of internet explorer. ...
...ial for all applications is controlled from the control panel, in the internet options applet, under the tab connections. if you turn on the autodial feature, windows will automatically dial whenever any application tries to access a network address that can't be reached. technically, this control panel applet (internet options) is part of internet explorer. it is not present in early versions of windows until internet explorer is installed. despite this fact, the feature is triggered by any application that uses networking. starting with windows nt, and in all nt-based versions (windows nt, windows 2000, and windows xp, including xp home) microsoft has changed the behavior of autodial. for these oss, the autodial options found in the internet options control panel applet only apply to microsoft...
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Windows stub installer - Archive of obsolete content
now you will find an installer *and* the xpcom.xpi and other debug xpis delivered to mozilla/dist/win32_d.obj/install. run the stub installer setup.exe from the install directory. ...
... now you will find an installer *and* the xpcom.xpi and other debug xpis delivered to mozilla/dist/win32_d.obj/install. run the stub installer setup.exe from the install directory. ...
... now you will find an installer *and* the xpcom.xpi and other debug xpis delivered to mozilla/dist/win32_d.obj/install. run the stub installer setup.exe from the install directory. ...
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windowtype - Archive of obsolete content
« xul reference home windowtype type: string set to a string which can be used to identify the type of window. this might be used, for example, to distinguish between a browser window and an editor window. some of mozilla's window handling functions use this attribute to group windows of the same type together. ...
... « xul reference home windowtype type: string set to a string which can be used to identify the type of window. this might be used, for example, to distinguish between a browser window and an editor window. some of mozilla's window handling functions use this attribute to group windows of the same type together. ...
... windowtype type: string set to a string which can be used to identify the type of window. this might be used, for example, to distinguish between a browser window and an editor window. some of mozilla's window handling functions use this attribute to group windows of the same type together. ...
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Window icons - Archive of obsolete content
these icons will override the global icon files, which are located in app_dir/browser/chrome/icons/default. note: the global icons override does not currently work due to bug bug 543490. ...
... these icons will override the global icon files, which are located in app_dir/browser/chrome/icons/default. note: the global icons override does not currently work due to bug bug 543490. ...
... these icons will override the global icon files, which are located in app_dir/browser/chrome/icons/default. note: the global icons override does not currently work due to bug bug 543490. ...
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Inner and outer windows
this article will try to explain the concepts of inner and outer windows. consider that when the user is looking at a document in a browser window, not only can the document the user is currently viewing change, but the document's contents can change. then add to that the concept of frames, whereby a document in a window can itself contain other documents, which in turn can contain more documents. in order to represent these levels of complexity, two "types" of window need to be considered. these don't technically refer to windows as the user sees them, but rather a perspective on what the user is looking at. ...
...he document's contents can change. then add to that the concept of frames, whereby a document in a window can itself contain other documents, which in turn can contain more documents. in order to represent these levels of complexity, two "types" of window need to be considered. these don't technically refer to windows as the user sees them, but rather a perspective on what the user is looking at. windows and the bfcache an outer window is a browsing context; that is, the actual environment in which a document is presented to the user. this may be a window or a tab, or it might be an <iframe> contained within another document. html5 refers to the outer window as the windowproxy. an inner window represents the actual content being displayed; it's the current view of what the user sees. consider th...
...ache an outer window is a browsing context; that is, the actual environment in which a document is presented to the user. this may be a window or a tab, or it might be an <iframe> contained within another document. html5 refers to the outer window as the windowproxy. an inner window represents the actual content being displayed; it's the current view of what the user sees. consider this view of a window and the browser history: as the user navigates, documents are added to the backward-forward cache (often referred to as the bfcache). these are, in essence, inner windows. they get displayed in the outer window, which is contained in the "physical" browser window. here's the trick, though: the inner window in essence pretends to be the outer window. if the document currently being displayed asks...
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Components.utils.evalInWindow
ted it is in the content's context, so the caller has to be prepared for the possibility that the content could have redefined behavior (for example, a setter in the script may have been redefined to do something unexpected). this function is made available as a global in sandboxes which have the wantexporthelpers option set in the sandbox() constructor. syntax var result = components.utils.evalinwindow(script, window); parameters script : string the script to evaluate in the other window. window : object the window in which to evaluate the script. returns the result of evaluating the script. if this is just native (for example, a dom node), then the function relies on xraywrappers to wrap the returned content, otherwise the result is structured-cloned. this does impose some r...
...se some restrictions on the sorts of things that can be returned: in particular, the result can't contain any functions, because functions can't be structured-cloned. ...
...n particular, the result can't contain any functions, because functions can't be structured-cloned. ...
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Main Windows
ning to look at it. as such, i've always thought it would be nice to have a list of what xul, js, or other files are that are here, what they do, and where they overlay at different points within the client. things appear confusing for several reasons: much of the code is written to be portable, so instead of duplicating it, its been put in overlays that are loaded over many different types of windows. some of the code was written based off of early firefox code, but is not exactly the same. you’ll sometimes see reimplementations of things that are already in toolkit, written specially for thunderbird. messenger.xul the base mail window that you see when you first open thunderbird is messenger.xul: messenger.xul itself doesn’t contain a lot. its main focus is on handling the folderpa...
... sometimes see reimplementations of things that are already in toolkit, written specially for thunderbird. messenger.xul the base mail window that you see when you first open thunderbird is messenger.xul: messenger.xul itself doesn’t contain a lot. its main focus is on handling the folderpane, threadpane, and the message preview sections shown above. the rest is loaded from overlays: mailwindowoverlay.xul this is the red sections shown in the interface above (where?), including the toolbars, notification bars, and the status bar, but also includes most of the commands, keysets, and context menus of thunderbird, along with a whole lot of javascript. mailoverlay.xul a really small overlay that only adds a few “new message” and “new card” commands to the menus, along with their ...
...in blue above (where?), this overlay consists of three boxes. two are stacked showing either a brief or expanded view of the headers. the third is the attachment box which can be toggled into a slim or an expanded view basemenuoverlay.xul contains the contents of most of the menus (i.e. file, edit, view, etc). ...
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Window.devicePixelRatio - Web APIs
the devicepixelratio of window interface returns the ratio of the resolution in physical pixels to the resolution in css pixels for the current display device. this value could also be interpreted as the ratio of pixel sizes: the size of one css pixel to the size of one physical pixel. in simpler terms, this tells the browser how many of the screen's actual pixels should be used to draw a single css pixel. this is useful when dealing with the difference between rendering on a standard display versus a hidpi or retina display, which use more screen pixels to draw the same objects, resulting in a sharper image. ...
...ize of one css pixel to the size of one physical pixel. in simpler terms, this tells the browser how many of the screen's actual pixels should be used to draw a single css pixel. this is useful when dealing with the difference between rendering on a standard display versus a hidpi or retina display, which use more screen pixels to draw the same objects, resulting in a sharper image. you can use window.matchmedia() to check if the value of devicepixelratio changes (which can happen, for example, if the user drags the window to a display with a different pixel density). see the example below. syntax value = window.devicepixelratio; value a double-precision floating-point value indicating the ratio of the display's resolution in physical pixels to the resolution in css pixels. a value of 1 i...
...(76 dpi on some platforms) display, while a value of 2 is expected for hidpi/retina displays. other values may be returned as well in the case of unusually low resolution displays or, more often, when a screen has a higher pixel depth than simply double the standard resolution of 96 or 76 dpi. examples correcting resolution in a <canvas> a <canvas> can appear too blurry on retina screens. use window.devicepixelratio to determine how much extra pixel density should be added to allow for a sharper image. html <canvas id="canvas"></canvas> javascript var canvas = document.getelementbyid('canvas'); var ctx = canvas.getcontext('2d'); // set display size (css pixels). var size = 200; canvas.style.width = size + "px"; canvas.style.height = size + "px"; // set actual size in memory (scaled to...
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Window: popstate event - Web APIs
it changes the current history entry to that of the last page the user visited or, if history.pushstate() has been used to add a history entry to the history stack, that history entry is used instead. bubbles yes cancelable no interface popstateevent event handler property onpopstate the history stack if the history entry being activated was created by a call to history.pushstate() or was affected by a call to history.replacestate(), the popstate event's state property contains a copy of the history entry's state object. ...
...ction such as a click on the back or forward button (or calling history.back() or history.forward() in javascript). browsers tend to handle the popstate event differently on page load. chrome (prior to v34) and safari always emit a popstate event on page load, but firefox doesn't. ...
...account that properties like window.location will already reflect the state change (if it affected the current url), but document might still not. if the goal is to catch the moment when the new document state is already fully in place, a zero-delay settimeout() method call should be used to effectively put its inner callback function that does the processing at the end of the browser event loop: window.onpopstate = () => settimeout(dosomething, 0); when popstate is sent when the transition occurs, either due to the user triggering the browser's "back" button or otherwise, the popstate event is near the end of the process to transition to the new location. it happens after the new location has loaded (if needed), displayed, made visible, and so on, after the pageshow event is sent, but before...
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Window.scrollY - Web APIs
if the document is rendered on a subpixel-precise device, then the returned value is also subpixel-precise and may contain a decimal component. ...
...if the document is rendered on a subpixel-precise device, then the returned value is also subpixel-precise and may contain a decimal component. ...
...el-precise and may contain a decimal component. if the document isn't scrolled at all up or down, then scrolly is 0. if you need an integer value, you can use math.round() to round it off. in more technical terms, scrolly returns the y coordinate of the top edge of the current viewport. if there is no viewport, the returned value is 0. ...
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WindowEventHandlers.onbeforeunload - Web APIs
example this example prompts the user before unloading. ...
... example this example prompts the user before unloading. ...
... example this example prompts the user before unloading. ...
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WindowOrWorkerGlobalScope - Web APIs
the windoworworkerglobalscope mixin describes several features common to the window and workerglobalscope interfaces. each of these interfaces can, of course, add more features in addition to the ones listed below. note: windoworworkerglobalscope is a mixin and not an interface; you can't actually create an object of type windoworworkerglobalscope. properties these properties are defined on the windoworworkerglobalscope mixin, and implemented by window and workerglobalscope. windoworworkerglobalscope.caches read only returns the cachestorage object associated with the current context. this object enables functionality such as storing assets for offline use, and generating custom responses to requests. ...
...pe windoworworkerglobalscope. properties these properties are defined on the windoworworkerglobalscope mixin, and implemented by window and workerglobalscope. windoworworkerglobalscope.caches read only returns the cachestorage object associated with the current context. this object enables functionality such as storing assets for offline use, and generating custom responses to requests. windoworworkerglobalscope.crossoriginisolated read only returns a boolean value that indicates whether a sharedarraybuffer can be sent via a window.postmessage() call. windoworworkerglobalscope.indexeddb read only provides a mechanism for applications to asynchronously access capabilities of indexed databases; returns an idbfactory object. ...
... use, and generating custom responses to requests. windoworworkerglobalscope.crossoriginisolated read only returns a boolean value that indicates whether a sharedarraybuffer can be sent via a window.postmessage() call. windoworworkerglobalscope.indexeddb read only provides a mechanism for applications to asynchronously access capabilities of indexed databases; returns an idbfactory object. windoworworkerglobalscope.issecurecontext read only returns a boolean indicating whether the current context is secure (true) or not (false). windoworworkerglobalscope.origin read only returns the origin of the global scope, serialized as a string. ...
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CanvasRenderingContext2D.drawWindow() - Web APIs
the deprecated, non-standard and internal only canvasrenderingcontext2d.drawwindow() method of the canvas 2d api renders a region of a window into the canvas. the contents of the window's viewport are rendered, ignoring viewport clipping and scrolling. this api cannot be used by web content. it is synchronous, and as such can't be compatible with fission. if you're using it from an extension, you should switch to tabs.capturetab. if you're writing chrome code, you probably want windowglobalparent.drawsnapshot from the parent process. syntax void ctx.drawwindow(window, x, y, w, h, bgcolor [, flags]); parameters window the window to render. x the x-axis coordinate of the window. y the y-axis coordinate of the window. w the width of the window. h the height of the window. bgc...
...nt windowglobalparent.drawsnapshot from the parent process. syntax void ctx.drawwindow(window, x, y, w, h, bgcolor [, flags]); parameters window the window to render. x the x-axis coordinate of the window. y the y-axis coordinate of the window. w the width of the window. h the height of the window. bgcolor a domstring that specifies the color the canvas is filled with before the window is rendered into it. this color may be transparent/translucent. it is given as a css color string (for example, rgb() or rgba()). notes: if "rgba(0,0,0,0)" is used for the background color, the drawing will be transparent wherever the window is transparent. top-level browsed documents are usually not transparent because the user's background-color preference is applied, but iframes are tra...
... used for the background color, the drawing will be transparent wherever the window is transparent. top-level browsed documents are usually not transparent because the user's background-color preference is applied, but iframes are transparent if the page doesn't set a background. if an opaque color is used for the background color, rendering will be faster because we won't have to compute the window's transparency. flags optional used to better control the drawwindow call. flags can be ored together. constant value description drawwindow_draw_caret 0x01 show the caret if appropriate when drawing. ...
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SourceBuffer.appendWindowEnd - Web APIs
exceptions the following exceptions may be thrown when setting a new value for this property. ...
... exceptions the following exceptions may be thrown when setting a new value for this property. ...
... exceptions the following exceptions may be thrown when setting a new value for this property. ...
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SourceBuffer.appendWindowStart - Web APIs
exceptions the following exceptions may be thrown when setting a new value for this property. ...
... exceptions the following exceptions may be thrown when setting a new value for this property. ...
... exceptions the following exceptions may be thrown when setting a new value for this property. ...
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Window.pageYOffset - Web APIs
the read-only window property pageyoffset is an alias for scrolly; as such, it returns the number of pixels the document is currently scrolled along the vertical axis (that is, up or down) with a value of 0.0, indicating that the top edge of the document is currently aligned with the top edge of the window's content area. there is slightly better support for pageyoffset than for scrolly in older browsers, but if you're not concerned about browsers more than a handful of years old, you can use either one. the corresponding pagexoffset property, which returns the number of pixels scrolled along the horizontal axis (left and right), is an alias for scrollx. ...
... top edge of the window's content area. there is slightly better support for pageyoffset than for scrolly in older browsers, but if you're not concerned about browsers more than a handful of years old, you can use either one. the corresponding pagexoffset property, which returns the number of pixels scrolled along the horizontal axis (left and right), is an alias for scrollx. syntax yoffset = window.pageyoffset; value a floating-point number specifying the number of pixels the document is scrolled vertically within its containing window. this number is subpixel precise, so it may not be an integer. a value of 0.0 indicates that the window is not scrolled vertically, and that the top of the document is located at the top edge of the window's content area. since this property is an alias f...
... example var contenthtml = ` <h2 id="introduction">introduction</h2> <p>lorem ipsum dolor sit amet, consectetur adipiscing elit. aenean volutpat vitae felis non dictum. ...
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Window.prompt() - Web APIs
the window.prompt() displays a dialog with an optional message prompting the user to input some text. syntax result = window.prompt(message, default); parameters message optional a string of text to display to the user. can be omitted if there is nothing to show in the prompt window. default optional a string containing the default value displayed in the text input field. note that in internet explorer 7 and 8, if you do not provide this parameter, the string "undefined" is the default value. return value a string containing the text entered by the user, or null. ...
...ext input field. note that in internet explorer 7 and 8, if you do not provide this parameter, the string "undefined" is the default value. return value a string containing the text entered by the user, or null. ...
...lorer 7 and 8, if you do not provide this parameter, the string "undefined" is the default value. return value a string containing the text entered by the user, or null. example let sign = prompt("what's your sign?"); if (sign.tolowercase() == "scorpio") { alert("wow! i'm a scorpio too!"); } // there are many ways to use the prompt feature sign = window.prompt(); // open the blank prompt window sign = prompt(); // open the blank prompt window sign = window.prompt('are you feeling lucky'); // open the window with text "are you feeling lucky" sign = window.prompt('are you feeling lucky', 'sure'); // open the window with text "are you feeling lucky" and default value "sure" when the user clicks the ok button, text entered in the input field is returned. if the user clicks ok withou...
...And 3 more matches

Window.scrollTo() - Web APIs
for scrolling elements, see element.scrolltop and element.scrollleft. ...
... for scrolling elements, see element.scrolltop and element.scrollleft. ...
... for scrolling elements, see element.scrolltop and element.scrollleft. ...
...And 3 more matches

Window.scrollX - Web APIs
if the document is rendered on a subpixel-precise device, then the returned value is also subpixel-precise and may contain a decimal component. ...
...if the document is rendered on a subpixel-precise device, then the returned value is also subpixel-precise and may contain a decimal component. ...
... scrolled at all left or right, then scrollx is 0. if you need an integer value, you can use math.round() to round it off. in more technical terms, scrollx returns the x coordinate of the left edge of the current viewport. if there is no viewport, the returned value is 0. example this example checks the current horizontal scroll position of the document. if it's greater than 400 pixels, the window is scrolled back to the beginning. if (window.scrollx > 400) { window.scroll(0,0); } notes the pagexoffset property is an alias for the scrollx property: window.pagexoffset == window.scrollx; // always true for cross-browser compatibility, use window.pagexoffset instead of window.scrollx. additionally, older versions of internet explorer (< 9) do not support either property and must be wor...
...And 3 more matches

Window.self - Web APIs
the window.self read-only property returns the window itself, as a windowproxy. it can be used with dot notation on a window object (that is, window.self) or standalone (self). the advantage of the standalone notation is that a similar notation exists for non-window contexts, such as in web workers. by using self, you can refer to the global scope in a way that will work not only in a window context (self will resolve to window.self) but also in a worker context (self will then resolve to workerglobalscope.self). example uses of window.self like the following could just as well be replaced by window. ...
...on is that a similar notation exists for non-window contexts, such as in web workers. by using self, you can refer to the global scope in a way that will work not only in a window context (self will resolve to window.self) but also in a worker context (self will then resolve to workerglobalscope.self). example uses of window.self like the following could just as well be replaced by window. ...
...on exists for non-window contexts, such as in web workers. by using self, you can refer to the global scope in a way that will work not only in a window context (self will resolve to window.self) but also in a worker context (self will then resolve to workerglobalscope.self). example uses of window.self like the following could just as well be replaced by window. ...
...And 3 more matches

WindowClient.navigate() - Web APIs
specifications specification status comment service workersthe definition of 'navigate()' in that specification. ...
... specifications specification status comment service workersthe definition of 'navigate()' in that specification. ...
... specifications specification status comment service workersthe definition of 'navigate()' in that specification. ...
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File.windowsShortcut - Archive of obsolete content
file.windowsshortcut in this example, the windowsshortcut method is used to add a shortcut in the program directory ("program" is a keyword for the directory in which the program itself is installed, for example, c:\program files\netscape\netscape 6\" on windows) to windows software (misc.exe) that is installed in the "windows" directory. ...
...e.windowsshortcut in this example, the windowsshortcut method is used to add a shortcut in the program directory ("program" is a keyword for the directory in which the program itself is installed, for example, c:\program files\netscape\netscape 6\" on windows) to windows software (misc.exe) that is installed in the "windows" directory. ...
...method is used to add a shortcut in the program directory ("program" is a keyword for the directory in which the program itself is installed, for example, c:\program files\netscape\netscape 6\" on windows) to windows software (misc.exe) that is installed in the "windows" directory. ...
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NPSetWindowCallbackStruct - Archive of obsolete content
« gecko plugin api reference « plug-in side plug-in api summary note: this structure is only used on unix platforms. contains information about the plug-in's unix window environment. syntax typedef struct { int32 type; display* display; visual* visual; colormap colormap; unsigned int depth; } npsetwindowcallbackstruct; fields the data structure has the following fields: type always contains np_setwindow. display standard x toolkit attribute. pointer to the display structure that represents the browser-server connection. visual standard x toolkit attribute. x visual for the plug-in window or drawable. colormap standard x toolkit attribute. colormap for the plug-in window or drawable. depth s...
...ains np_setwindow. display standard x toolkit attribute. pointer to the display structure that represents the browser-server connection. visual standard x toolkit attribute. x visual for the plug-in window or drawable. colormap standard x toolkit attribute. colormap for the plug-in window or drawable. depth standard x toolkit attribute. depth of the plug-in window or drawable. description callback structures are used to pass platform-specific information. the npsetwindowcallbackstruct object, allocated by the browser, contains information required for the ws_info field of an npwindow. the npp_setwindow() function passes a pointer to this structure to the plug-in. ...
...olkit attribute. depth of the plug-in window or drawable. description callback structures are used to pass platform-specific information. the npsetwindowcallbackstruct object, allocated by the browser, contains information required for the ws_info field of an npwindow. the npp_setwindow() function passes a pointer to this structure to the plug-in. the structure is valid for the lifetime of the npwindow, that is, until npp_setwindow() is called again or the instance is destroyed. the type field of this structure always contains np_setwindow. the remaining fields are standard x toolkit attributes of the top-level shell window in the browser window hierarchy. ...
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mozbrowseropenwindow
non-standard this feature is non-standard and is not on a standards track. do not use it on production sites facing the web: it will not work for every user. there may also be large incompatibilities between implementations and the behavior may change in the future. the mozbrowseropenwindow event is fired when a new window is required — usually when the content of a browser <iframe> successfully calls the window.open() method, or the user clicks on a link with an unknown target. the embedder must use the <iframe> passed in the event.details.frameelement property as the new window content. general info specification non standard interface customevent bubbles yes cancelable yes target <iframe> default action none properties property t...
...cancelable read only boolean whether the event is cancellable or not. details read only object a custom object. details the details property returns an anonymous javascript object with the following properties: url a domstring representing the url of the document loaded within the frameelement property. name a domstring representing the name of the new browser window. ...
...ls property returns an anonymous javascript object with the following properties: url a domstring representing the url of the document loaded within the frameelement property. name a domstring representing the name of the new browser window. features a domstring containing features represented by a list of names and values separated by commas. for a complete list of possible features, see window.open(). frameelement an object representing the new browser <iframe> that will embed the new content. ...
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How to get a process dump with Windows Task Manager
introduction when tracking down the causes of process hangs, it is often helpful to obtain a process dump while the process is experiencing a hang. this article describes how to get a process dump with task manager on windows. (to get a process dump for thunderbird or some other product, substitute the product name where ever you see firefox in these instructions.) caution the memory dump that will be created through this process is a complete snapshot of the state of firefox when you create the file, so it contains urls of active tabs, history information, and possibly even passwords depending on what you are doing when the snapshot is taken. it is advisable to create a new, blank profile to use when reproducing the hang and capturing the memory dump. please ask for help doing this! ...
...hrough this process is a complete snapshot of the state of firefox when you create the file, so it contains urls of active tabs, history information, and possibly even passwords depending on what you are doing when the snapshot is taken. it is advisable to create a new, blank profile to use when reproducing the hang and capturing the memory dump. please ask for help doing this! requirements windows to get a process dump, you need to be using windows vista or above. a firefox nightly or release you need a firefox version for which symbols are available from the mozilla symbol server. you can use any official nightly build or released version of firefox from mozilla. you can find the latest trunk nightly builds under http://ftp.mozilla.org/pub/mozilla.o.../latest-trunk/. creating the ...
...sion of firefox from mozilla. you can find the latest trunk nightly builds under http://ftp.mozilla.org/pub/mozilla.o.../latest-trunk/. creating the dump file ensure that firefox is not already running. run firefox, reproduce the hang start firefox and perform whatever steps are necessary to cause firefox to hang. once the browser hangs, continue with the steps below. ...
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Window.captureEvents() - Web APIs
the window.captureevents() method registers the window to capture all events of the specified type. syntax window.captureevents(eventtype) eventtype is a combination of the following values: event.abort, event.blur, event.click, event.change, event.dblclick, event.dragddrop, event.error, event.focus, event.keydown, event.keypress, event.keyup, event.load, event.mousedown, event.mousemove, event.mouseout, event.mouseover, event.mouseup, event.move, event.reset, event.resize, event.select, event.submit, event.unload. example <!doctype html> <html lang="en"> <head> <!-- ... ...
...ur, event.click, event.change, event.dblclick, event.dragddrop, event.error, event.focus, event.keydown, event.keypress, event.keyup, event.load, event.mousedown, event.mousemove, event.mouseout, event.mouseover, event.mouseup, event.move, event.reset, event.resize, event.select, event.submit, event.unload. example <!doctype html> <html lang="en"> <head> <!-- ... ...
...dblclick, event.dragddrop, event.error, event.focus, event.keydown, event.keypress, event.keyup, event.load, event.mousedown, event.mousemove, event.mouseout, event.mouseover, event.mouseup, event.move, event.reset, event.resize, event.select, event.submit, event.unload. example <!doctype html> <html lang="en"> <head> <!-- ... ...
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Window.getSelection() - Web APIs
the window.getselection() method returns a selection object representing the range of text selected by the user or the current position of the caret. syntax selection = window.getselection(); return value a selection object. when cast to string, either by appending an empty string ("") or using selection.tostring(), this object returns the text selected. when called on an <iframe> that is not displayed (eg. where display: none is set) firefox will return null, whereas other browsers will return a selection object with selection.type set to none. ...
...alue a selection object. when cast to string, either by appending an empty string ("") or using selection.tostring(), this object returns the text selected. when called on an <iframe> that is not displayed (eg. where display: none is set) firefox will return null, whereas other browsers will return a selection object with selection.type set to none. examples function foo() { var selobj = window.getselection(); alert(selobj); var selrange = selobj.getrangeat(0); // do stuff with the range } notes string representation of the selection object in javascript, when an object is passed to a function expecting a string (like window.alert() or document.write()), the object's tostring() method is called and the returned value is passed to the function. this can make the object app...
...however, attempting to use a javascript string property or method such as length or substr directly on a selection object will result in an error if it does not have that property or method and may return unexpected results if it does. ...
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Window.matchMedia() - Web APIs
return value a new mediaquerylist object for the media query. use this object's properties and events to detect matches and to monitor for changes to those matches over time. usage notes you can use the returned media query to perform both instantanteous and event-driven checks to see if the document matches the media query. ...
...taneous check to see if the document matches the media query, look at the value of the matches property, which will be true if the document meets the media query's requirements. if you need to be kept aware of whether or not the document matches the media query at all times, you can instead watch for the change event to be delivered to the object. ...
...the change event to be delivered to the object. there's a good example of this in the article on window.devicepixelratio. examples this example runs the media query (max-width: 600px) and displays the value of the resulting mediaquerylist's matches property in a <span>; as a result, the output will say "true" if the viewport is less than or equal to 600 pixels wide, and will say "false" if the window is wider than that. ...
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Window.onpaint - Web APIs
specification this is not part of any specification. ...
... specification this is not part of any specification. ...
... specification this is not part of any specification. ...
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Window.screen - Web APIs
working draft initial definition. ...
... working draft initial definition. ...
... working draft initial definition. ...
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Window.stop() - Web APIs
recommendation browser compatibility the compatibility table in this page is generated from structured data. ...
... recommendation browser compatibility the compatibility table in this page is generated from structured data. ...
... recommendation browser compatibility the compatibility table in this page is generated from structured data. ...
...And 2 more matches

Window.toolbar - Web APIs
the window.toolbar property returns the toolbar object, whose visibility can be toggled in the window. syntax objref = window.toolbar example the following complete html example shows way that the visible property of the various "bar" objects is used, and also the change to the privileges necessary to write to the visible property of any of the bars on an existing window. due to deprecation of enableprivilege this functionality can not be used in web pages. enableprivilege is disabled in firefox 15 and will be removed in firefox 17. ...
...and also the change to the privileges necessary to write to the visible property of any of the bars on an existing window. due to deprecation of enableprivilege this functionality can not be used in web pages. enableprivilege is disabled in firefox 15 and will be removed in firefox 17. ...
...any of the bars on an existing window. due to deprecation of enableprivilege this functionality can not be used in web pages. enableprivilege is disabled in firefox 15 and will be removed in firefox 17. <!doctype html> <html> <head> <title>various dom tests</title> <script> // changing bar states on the existing window netscape.security.privilegemanager.enableprivilege("universalbrowserwrite"); window.toolbar.visible=!window.toolbar.visible; </script> </head> <body> <p>various dom tests</p> </body> </html> notes when you load the example page above, the browser displays the following dialog: to toggle the visibility of these bars, you must either sign your scripts or enable the appropriate privileges, as in the example above. also be aware that dynamically updating the visibilty of the...
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Window: unload event - Web APIs
child resource is being unloaded. ...
...) nothing is visible anymore to the end user ui interactions are ineffective (window.open, alert, confirm, etc.) an error won't stop the unloading workflow please note that the unload event also follows the document tree: parent frame unload will happen before child frame unload (see example below). ...
...an error won't stop the unloading workflow please note that the unload event also follows the document tree: parent frame unload will happen before child frame unload (see example below). ...
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WindowClient.focused - Web APIs
the focused read-only property of the windowclient interface is a boolean that indicates whether the current client has focus. syntax var myfocused = windowclient.focused; value a boolean. ...
...whether the current client has focus. syntax var myfocused = windowclient.focused; value a boolean. ...
... working draft initial definition ...
...And 2 more matches

WindowClient - Web APIs
the windowclient interface of the serviceworker api represents the scope of a service worker client that is a document in a browsing context, controlled by an active worker. the service worker client independently selects and uses a service worker for its own loading and sub-resources. methods windowclient inherits methods from its parent interface, client. windowclient.focus() gives user input focus to the current client. windowclient.navigate() loads a specified url into a controlled client page. properties windowclient inherits properties from its parent interface, client. windowclient.focused read only a boolean that indicates whether the current client has focus. windowclient.visibilitystate read only indicates the visibility of the current client. this value can be one...
...es the visibility of the current client. this value can be one of "hidden", "visible", or "prerender". ...
... working draft initial definition ...
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WindowEventHandlers.onunload - Web APIs
specifications specification status comment html living standardthe definition of 'onunload' in that specification. ...
... specifications specification status comment html living standardthe definition of 'onunload' in that specification. ...
... specifications specification status comment html living standardthe definition of 'onunload' in that specification. ...
...And 2 more matches

WindowOrWorkerGlobalScope.atob() - Web APIs
you can use the btoa() method to encode and transmit data which may otherwise cause communication problems, then transmit it and use the atob() method to decode the data again. for example, you can encode, transmit, and decode control characters such as ascii values 0 through 31. for use with unicode or utf-8 strings, see the note on "unicode strings" in the page for btoa(). syntax var decodeddata = scope.atob(encodeddata); parameters encodeddata a binary string contains an base64 encoded data. return value an ascii string containing decoded data from encodeddata. exceptions domexception (name: invalidcharactererror) throws if encodeddata is not valid base64. ...
...ings, see the note on "unicode strings" in the page for btoa(). syntax var decodeddata = scope.atob(encodeddata); parameters encodeddata a binary string contains an base64 encoded data. return value an ascii string containing decoded data from encodeddata. exceptions domexception (name: invalidcharactererror) throws if encodeddata is not valid base64. ...
...tax var decodeddata = scope.atob(encodeddata); parameters encodeddata a binary string contains an base64 encoded data. return value an ascii string containing decoded data from encodeddata. exceptions domexception (name: invalidcharactererror) throws if encodeddata is not valid base64. ...
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Supporting per-window private browsing - Archive of obsolete content
firefox 20 introduced per-window private browsing mode, in which private user data is stored and accessed concurrently with public user data from another window. detecting private browsing mode determining whether or not a given dom window is private is simple: import resource://gre/modules/privatebrowsingutils.jsm and use privatebrowsingutils.iswindowprivate(window). you can then take action based on this value, as any data or actions originating from this window should be considered private. try { // firefox 20+ components.utils.import("resource://gre/modules/privatebrowsingutils.jsm"); if (!privatebrowsingutils.iswindowprivate(window)) { ... } } catch(e) { // pre firefox 20 (if you do not have access to a do...
...e apis some apis (such as nsitransferable and nsiwebbrowserpersist) take nsiloadcontext arguments that are used to determine whether they should be classed as private or not (for example, whether the uri being persisted by saveuri should be added to the permanent download history). to do this, import resource://gre/modules/privatebrowsingutils.jsm and use privatebrowsingutils.getprivacycontextfromwindow(win), passing a window object that is related to the content in question. as an example, if an add-on adds a context menu item that accesses an api that requires an nsiloadcontext, the most relevant window is the one that owns the element being targeted by the context menu (element.ownerdocument.defaultview). if some action triggered by a chrome element (such as a button) requires an api that tak...
...elated to the content in question. as an example, if an add-on adds a context menu item that accesses an api that requires an nsiloadcontext, the most relevant window is the one that owns the element being targeted by the context menu (element.ownerdocument.defaultview). if some action triggered by a chrome element (such as a button) requires an api that takes a privacy context, the most relevant window is the one that contains the chrome element. in some cases, there is no logical window object to use (such as when data or an action originate from some other source than web content). in these cases, it is permissable to pass null as the argument instead of a real privacy context. however, this can lead to privacy leaks (such as cache and download entries) if not used carefully. clearing any tem...
...ermissable to pass null as the argument instead of a real privacy context. however, this can lead to privacy leaks (such as cache and download entries) if not used carefully. clearing any temporarily-stored private data it is permissable to store private data in non-persistent ways for the duration of a private browsing session. to be notified when such a session ends (i.e., when the last private window is closed), observe the last-pb-context-exited notification. function pbobserver() { /* clear private data */ } var os = components.classes["@mozilla.org/observer-service;1"] .getservice(components.interfaces.nsiobserverservice); os.addobserver(pbobserver, "last-pb-context-exited", false); preventing a private session from ending if there are unfinished transactions involving p...

Windows Install - Archive of obsolete content
windows install example this example shows the installation of a xpi in which user profile information is contained. note the disk space verification, the editing of the windows registry, the writing to the installation log, and the error checking before either performinstall or cancelinstall is called. // this function verifies disk space in kilobytes function verifydiskspace(dirpath, spacerequired) { var spaceavailable; // get the available disk space on the given path spaceavailable = filegetdiskspaceavailable(dirpath); // convert the available disk space into kilobytes spaceavailable = parseint(spaceavailable / 1024); // do the verification if(spaceavailable < spacerequired) { logcomment("insufficient disk space: " + dirpath); logcomment(" required : " + spac...
... // subkeys have to exist before values can be put in. var subkey; // the name of the subkey you are poking around in var valname; // the name of the value you want to look at var value; // the data in the value you want to look at. var winreg = getwinregistry() ; if(winreg != null) { // here, we get the current version. winreg.setrootkey(winreg.hkey_c...
...t in. var subkey; // the name of the subkey you are poking around in var valname; // the name of the value you want to look at var value; // the data in the value you want to look at. var winreg = getwinregistry() ; if(winreg != null) { // here, we get the current version. ...
... var ftemp = getfolder("temporary"); var fprogram = getfolder("program"); var fren8dot3ini = getwinprofile(ftemp, "ren8dot3.ini"); var binicreated = false; var flongfilepath; var sshortfilepath; if(fren8dot3ini != null) { for(i = 0; i < listlongfilepaths.length; i++) { flongfilepath = getfolder(fprogram, listlongfilepaths[i]); sshortfilepath = file.windowsgetshortname(flongfilepath); if(sshortfilepath) { fren8dot3ini.writestring("rename", sshortfilepath, flongfilepath); binicreated = true; } } if(binicreated) updatewinreg4ren8dot3() ; } return(0); } // main var srdest; var err; var fprogram; srdest = 449; err = initinstall(prettyname, regname, "6.0.0.2000110801"); logcomment("...

How To Pass an XPCOM Object to a New Window
a more useful example is available in the source code: toolkit/components/help/content/contexthelp.js#61 if you want to be able to call functions within an xpcom object from a xul window's code, you can do so if you pass the xpcom object as one of the arguments to the window creation method. for example: var ww = components.classes["@mozilla.org/embedcomp/window-watcher;1"]. ...
...e in the source code: toolkit/components/help/content/contexthelp.js#61 if you want to be able to call functions within an xpcom object from a xul window's code, you can do so if you pass the xpcom object as one of the arguments to the window creation method. for example: var ww = components.classes["@mozilla.org/embedcomp/window-watcher;1"]. ...
...onents/help/content/contexthelp.js#61 if you want to be able to call functions within an xpcom object from a xul window's code, you can do so if you pass the xpcom object as one of the arguments to the window creation method. for example: var ww = components.classes["@mozilla.org/embedcomp/window-watcher;1"]. getservice(components.interfaces.nsiwindowwatcher); var win = ww.openwindow(null, "chrome://myextension/content/debug.xul", "debug history", "chrome,centerscreen,resizable", myobject); note in this example that myobject is passed to the openwindow() method; you can pass any xpcom object (or any other value, for that matter) in this way. ...
... getservice(components.interfaces.nsiwindowwatcher); var win = ww.openwindow(null, "chrome://myextension/content/debug.xul", "debug history", "chrome,centerscreen,resizable", myobject); note in this example that myobject is passed to the openwindow() method; you can pass any xpcom object (or any other value, for that matter) in this way. to access the xpcom object from the window's code, you can access the window.arguments[] array, as shown in the example below: components.utils.reporterror(string(window.arguments[0])); this will produce output similar to "[xpconnect wrapped nsimyxpcomobject]". ...

Clients.openWindow() - Web APIs
the openwindow() method of the clients interface creates a new top level browsing context and loads a given url. if the calling script doesn't have permission to show popups, openwindow() will throw an invalidaccesserror. in firefox, the method is allowed to show popups only when called as the result of a notification click event. in chrome for android, the method may instead open the url in an existing browsing context provided by a standalone web app previously added to the user's home screen. as of recently, this also works on chrome for windows. syntax self.clients.openwindow(url).then(function(windowclient) { // do something with your windowclient }); parameters url a usvstring representing the url of the client you want to open in the window. generally this value must be a url ...
...creen. as of recently, this also works on chrome for windows. syntax self.clients.openwindow(url).then(function(windowclient) { // do something with your windowclient }); parameters url a usvstring representing the url of the client you want to open in the window. generally this value must be a url from the same origin as the calling script. return value a promise that resolves to a windowclient object if the url is from the same origin as the service worker or a null value otherwise. examples // send notification to os if applicable if (self.notification.permission === 'granted') { const notificationobject = { body: 'click here to view your messages.', data: { url: self.location.origin + '/some/path' }, // data: { url: 'http://example.com' }, }; self.registrat...
... body: 'click here to view your messages.', data: { url: self.location.origin + '/some/path' }, // data: { url: 'http://example.com' }, }; self.registration.shownotification('you\'ve got messages!', notificationobject); } // notification click event listener self.addeventlistener('notificationclick', e => { // close the notification popout e.notification.close(); // get all the window clients e.waituntil(clients.matchall({ type: 'window' }).then(clientsarr => { // if a window tab matching the targeted url already exists, focus that; const hadwindowtofocus = clientsarr.some(windowclient => windowclient.url === e.notification.data.url ? (windowclient.focus(), true) : false); // otherwise, open a new tab to the applicable url and focus it. if (!hadwindowtofocus)...
...waituntil(clients.matchall({ type: 'window' }).then(clientsarr => { // if a window tab matching the targeted url already exists, focus that; const hadwindowtofocus = clientsarr.some(windowclient => windowclient.url === e.notification.data.url ? (windowclient.focus(), true) : false); // otherwise, open a new tab to the applicable url and focus it. if (!hadwindowtofocus) clients.openwindow(e.notification.data.url).then(windowclient => windowclient ? windowclient.focus() : null); })); }); specifications specification status comment service workersthe definition of 'clients: openwindow' in that specification. working draft initial definition. ...

MSCandidateWindowHide - Web APIs
non-standard this feature is non-standard and is not on a standards track. do not use it on production sites facing the web: it will not work for every user. there may also be large incompatibilities between implementations and the behavior may change in the future. mscandidatewindowhide fires after the input method editor (ime) candidate window closes and is fully hidden. this proprietary method is specific to internet explorer. general info synchronous no bubbles no cancelable no note windows 8.1 and windows 7 imes for certain languages on internet explorer for the desktop might not support this event. on internet explorer in the new windows ui, this event is supported in windows 8.1 imes of all languages. syntax event property object...
...prietary method is specific to internet explorer. general info synchronous no bubbles no cancelable no note windows 8.1 and windows 7 imes for certain languages on internet explorer for the desktop might not support this event. on internet explorer in the new windows ui, this event is supported in windows 8.1 imes of all languages. syntax event property object.oncandidatewindowhide = handler; addeventlistener method object.addeventlistener("mscandidatewindowhide", handler, usecapture) nbsp; parameters pevtobj [in] type: ihtmleventobj pointer to an ihtmleventobj interface for the current event. ...
... web applications need only register for this event once per element (the handler will remain valid for the lifetime of the element). ...
... web applications need only register for this event once per element (the handler will remain valid for the lifetime of the element). ...

MSCandidateWindowUpdate - Web APIs
non-standard this feature is non-standard and is not on a standards track. do not use it on production sites facing the web: it will not work for every user. there may also be large incompatibilities between implementations and the behavior may change in the future. mscandidatewindowupdate fires after the input method editor (ime) candidate window has been identified as needing to change size, but before any visual updates have rendered. ...
...ge incompatibilities between implementations and the behavior may change in the future. mscandidatewindowupdate fires after the input method editor (ime) candidate window has been identified as needing to change size, but before any visual updates have rendered. this proprietary method is specific to internet explorer. general info synchronous no bubbles no cancelable no note windows 8.1 and windows 7 imes for certain languages on internet explorer for the desktop might not support this event. on internet explorer in the new windows ui, this event is supported in windows 8.1 imes of all languages. ...
...prietary method is specific to internet explorer. general info synchronous no bubbles no cancelable no note windows 8.1 and windows 7 imes for certain languages on internet explorer for the desktop might not support this event. on internet explorer in the new windows ui, this event is supported in windows 8.1 imes of all languages. syntax event property object.oncandidatewindowupdate = handler; addeventlistener method object.addeventlistener("mscandidatewindowupdate", handler, usecapture) parameters pevtobj [in] type: ihtmleventobj pointer to an ihtmleventobj interface for the current event. ...
...new windows ui, this event is supported in windows 8.1 imes of all languages. syntax event property object.oncandidatewindowupdate = handler; addeventlistener method object.addeventlistener("mscandidatewindowupdate", handler, usecapture) parameters pevtobj [in] type: ihtmleventobj pointer to an ihtmleventobj interface for the current event. tan ime candidate window may be identified as needing to change size for any of the following reasons: as a result of displaying new / changed alternatives or predictions web applications need only register for this event once per element (the handler will remain valid for the lifetime of the element). see also microsoft api extensions ime handling guide for gecko ...

Window.closed - Web APIs
the window.closed read-only property indicates whether the referenced window is closed or not. syntax const isclosed = windowref.closed; value a boolean. possible values: true: the window has been closed. false: the window is open. examples change the url of a window from a popup the following example demonstrates how a popup window can change the url of the window that opened it. before attempting to change the url, it checks that the current window has an opener using the window.opener property and that the opener isn't closed: // check that an opener exists and is not closed if (window.opener && !window.opener.closed) { window.opener.location.href = 'http://www.mozilla.org'; } note that popups can only access the window that opened them. refreshing a previously opened popup...
... the current window has an opener using the window.opener property and that the opener isn't closed: // check that an opener exists and is not closed if (window.opener && !window.opener.closed) { window.opener.location.href = 'http://www.mozilla.org'; } note that popups can only access the window that opened them. refreshing a previously opened popup in this example the function refreshpopupwindow() calls the reload() method of the popup's location object to refresh its data. if the popup hasn't been opened yet or the user has closed it a new window is opened. ...
...r.closed) { window.opener.location.href = 'http://www.mozilla.org'; } note that popups can only access the window that opened them. refreshing a previously opened popup in this example the function refreshpopupwindow() calls the reload() method of the popup's location object to refresh its data. if the popup hasn't been opened yet or the user has closed it a new window is opened. ...
...href = 'http://www.mozilla.org'; } note that popups can only access the window that opened them. refreshing a previously opened popup in this example the function refreshpopupwindow() calls the reload() method of the popup's location object to refresh its data. if the popup hasn't been opened yet or the user has closed it a new window is opened. const popupwindow = null; function refreshpopupwindow() { if (popupwindow && !popupwindow.closed) { // popupwindow is open, refresh it popupwindow.location.reload(true); } else { // open a new popup window popupwindow = window.open('popup.html', 'datawindow'); } } specification specification status comment html living standardthe definition of 'window.closed' in that specification. living standard ...

Window.content - Web APIs
dards track. do not use it on production sites facing the web: it will not work for every user. there may also be large incompatibilities between implementations and the behavior may change in the future. note: since firefox 57 (initially nightly-only), both the content and _content variants are only available to chrome (privileged) code, and not available to the web anymore. returns a window object for the primary content window. this is useful in xul windows that have a <browser> (or tabbrowser or <iframe>) with type="content-primary" attribute on it — the most famous example is firefox main window, browser.xul. in such cases, content returns a reference to the window object for the document currently displayed in the browser. it is a shortcut for browserref.contentwindow. in unp...
...tribute on it — the most famous example is firefox main window, browser.xul. in such cases, content returns a reference to the window object for the document currently displayed in the browser. it is a shortcut for browserref.contentwindow. in unprivileged content (webpages), content is normally equivalent to top (except in the case of a webpage loaded in a sidebar, content still refers to the window of the currently selected tab). note: some examples use _content instead of content. the former has been deprecated for a long time, and you should use content in any new code. ...
...s a shortcut for browserref.contentwindow. in unprivileged content (webpages), content is normally equivalent to top (except in the case of a webpage loaded in a sidebar, content still refers to the window of the currently selected tab). note: some examples use _content instead of content. the former has been deprecated for a long time, and you should use content in any new code. syntax var windowobject = window.content; example executing the following code in a chrome xul window with a <browser type="content-primary"/> element in it draws a red border around the first div on the page currently displayed in the browser: content.document.getelementsbytagname("div")[0].style.border = "solid red 1px"; specification none. ...
...t in any new code. syntax var windowobject = window.content; example executing the following code in a chrome xul window with a <browser type="content-primary"/> element in it draws a red border around the first div on the page currently displayed in the browser: content.document.getelementsbytagname("div")[0].style.border = "solid red 1px"; specification none. see also working with windows in chrome code when accessing content documents from privileged code, be aware of xpcnativewrappers. ...

Window.crypto - Web APIs
the read-only window.crypto property returns the crypto object associated to the global object. this object allows web pages access to certain cryptographic related services. although the property itself is read-only, all of its methods (and the methods of its child object, subtlecrypto) are not read-only, and therefore vulnerable to attack by polyfill. although window.crypto is available on all windows, the returned crypto object only has one usable feature in insecure contexts: the getrandomvalues() method. in general, you should use this api only in secure contexts. syntax var cryptoobj = window.crypto || window.mscrypto; // for ie 11 value an instance of the crypto interface, providing access to general-purpose cryptography and a strong random-number generator. example this example ...
...eturned crypto object only has one usable feature in insecure contexts: the getrandomvalues() method. in general, you should use this api only in secure contexts. syntax var cryptoobj = window.crypto || window.mscrypto; // for ie 11 value an instance of the crypto interface, providing access to general-purpose cryptography and a strong random-number generator. example this example uses the window.crypto property to access the getrandomvalues() method. ...
... syntax var cryptoobj = window.crypto || window.mscrypto; // for ie 11 value an instance of the crypto interface, providing access to general-purpose cryptography and a strong random-number generator. example this example uses the window.crypto property to access the getrandomvalues() method. ...
... recommendation initial definition ...

Window.getAttention() - Web APIs
this may be configurable as well. on macintosh, the icon in the upper right corner of the desktop flashes. the function is disabled for web content. neither gecko nor internet explorer supports this feature now for web content. getattention will still work when used from chrome in a gecko application. specification dom level 0. ...
...this may be configurable as well. on macintosh, the icon in the upper right corner of the desktop flashes. the function is disabled for web content. neither gecko nor internet explorer supports this feature now for web content. getattention will still work when used from chrome in a gecko application. specification dom level 0. ...
...this may be configurable as well. on macintosh, the icon in the upper right corner of the desktop flashes. the function is disabled for web content. neither gecko nor internet explorer supports this feature now for web content. getattention will still work when used from chrome in a gecko application. specification dom level 0. ...
...this may be configurable as well. on macintosh, the icon in the upper right corner of the desktop flashes. the function is disabled for web content. neither gecko nor internet explorer supports this feature now for web content. ...

Window.getComputedStyle() - Web APIs
pseudoeltoptional a string specifying the pseudo-element to match. omitted (or null) for real elements. the returned style is a live cssstyledeclaration object, which updates automatically when the element's styles are changed. ...
... pseudoeltoptional a string specifying the pseudo-element to match. omitted (or null) for real elements. the returned style is a live cssstyledeclaration object, which updates automatically when the element's styles are changed. ...
.... examples in this example we style a <p> element, then retrieve those styles using getcomputedstyle(), and print them into the text content of the <p>. html <p>hello</p> css p { width: 400px; margin: 0 auto; padding: 20px; font: 2rem/2 sans-serif; text-align: center; background: purple; color: white; } javascript let para = document.queryselector('p'); let compstyles = window.getcomputedstyle(para); para.textcontent = 'my computed font-size is ' + compstyles.getpropertyvalue('font-size') + ',\nand my computed line-height is ' + compstyles.getpropertyvalue('line-height') + '.'; result description the returned object is the same cssstyledeclaration type as the object returned from the element's style property. however, the two objects have different...
...sed to set styles on that element, or inspect styles directly added to it from javascript manipulation or the global style attribute. the first argument must be an element. non-elements, like a text node, will throw an error. defaultview in many code samples, getcomputedstyle is used from the document.defaultview object. in nearly all cases, this is needless, as getcomputedstyle exists on the window object as well. it's likely the defaultview pattern was a combination of folks not wanting to write a testing spec for window and making an api that was also usable in java. use with pseudo-elements getcomputedstyle can pull style info from pseudo-elements (such as ::after, ::before, ::marker, ::line-marker — see the pseudo-element spec). <style> h3::after { content: ' rocks!'; } </s...

Window.getDefaultComputedStyle() - Web APIs
the getdefaultcomputedstyle() method gives the default computed values of all the css properties of an element, ignoring author styling. that is, only user-agent and user styles are taken into account. syntax var style = window.getdefaultcomputedstyle(element [, pseudoelt]); parameters element the element for which to get the computed style. pseudoelt optional a string specifying the pseudo-element to match. must be null (or not specified) for regular elements. return value the returned style is a cssstyledeclaration object. ...
...ntax var style = window.getdefaultcomputedstyle(element [, pseudoelt]); parameters element the element for which to get the computed style. pseudoelt optional a string specifying the pseudo-element to match. must be null (or not specified) for regular elements. return value the returned style is a cssstyledeclaration object. the object is of the same type as the object returned by window.getcomputedstyle(), but only takes into account user-agent and user rules. ...
... a string specifying the pseudo-element to match. must be null (or not specified) for regular elements. return value the returned style is a cssstyledeclaration object. the object is of the same type as the object returned by window.getcomputedstyle(), but only takes into account user-agent and user rules. ...
...ple simple example var elem1 = document.getelementbyid("elemid"); var style = window.getdefaultcomputedstyle(elem1); longer example <style> #elem-container { position: absolute; left: 100px; top: 200px; height: 100px; } </style> <div id="elem-container">dummy</div> <div id="output"></div> <script> var elem = document.getelementbyid("elem-container"); var thecssprop = window.getdefaultcomputedstyle(elem).position; document.getelementbyid("output").innerhtml = thecssprop; // will output "static" </script> use with pseudo-elements the getdefaultcomputedstyle() method can pull style info from pseudo-elements (e.g., ::before or ::after). <style> h3:after { content: ' rocks!'; } </style> <h3>generated content</h3> <script> var h3 = document.queryselect...

Window.innerHeight - Web APIs
the read-only innerheight property of the window interface returns the interior height of the window in pixels, including the height of the horizontal scroll bar, if present. the value of innerheight is taken from the height of the window's layout viewport. the width can be obtained using the innerwidth property. syntax let intviewportheight = window.innerheight; value an integer value indicating the window's layout viewport height in pixels. the property is read only and has no default value. to change the width of the window, call one of its resize methods, such as resizeto() or resizeby(). usage notes to obtain the height of the window minus its horizontal scroll bar and any borders, use the root <html> element's clientheight() property instead. both innerheight and innerwidth are a...
...out viewport height in pixels. the property is read only and has no default value. to change the width of the window, call one of its resize methods, such as resizeto() or resizeby(). usage notes to obtain the height of the window minus its horizontal scroll bar and any borders, use the root <html> element's clientheight() property instead. both innerheight and innerwidth are available on any window or any object that behaves like a window, such as a tab or frame. ...
...ne of its resize methods, such as resizeto() or resizeby(). usage notes to obtain the height of the window minus its horizontal scroll bar and any borders, use the root <html> element's clientheight() property instead. both innerheight and innerwidth are available on any window or any object that behaves like a window, such as a tab or frame. ...
...var intframeheight = self.innerheight; // will return the height of the frame viewport within the frameset var intframesetheight = parent.innerheight; // will return the height of the viewport of the closest frameset var intouterframesetheight = top.innerheight; // will return the height of the viewport of the outermost frameset fixme: link to an interactive demo here to change the size of a window, see window.resizeby() and window.resizeto(). to get the outer height of a window, i.e. the height of the whole browser window, see window.outerheight. graphical example the following figure shows the difference between outerheight and innerheight. specification specification status comment css object model (cssom) view modulethe definition of 'window.innerheigh...

Window.innerWidth - Web APIs
the read-only window property innerwidth returns the interior width of the window in pixels. this includes the width of the vertical scroll bar, if one is present. more precisely, innerwidth returns the width of the window's layout viewport. the interior height of the window—the height of the layout viewport—can be obtained from the innerheight property. syntax let intviewportwidth = window.innerwidth; value an integer value indicating the width of the window's layout viewport in pixels. this property is read-only, and has no default value. to change the window's width, use one of the window methods for resizing windows, such as resizeby() or resizeto(). ...
...ined from the innerheight property. syntax let intviewportwidth = window.innerwidth; value an integer value indicating the width of the window's layout viewport in pixels. this property is read-only, and has no default value. to change the window's width, use one of the window methods for resizing windows, such as resizeby() or resizeto(). usage notes if you need to obtain the width of the window minus the scrollbar and borders, use the root <html> element's clientwidth property instead. the innerwidth property is available on any window or object that behaves like a window, such as a frame or tab. ...
... for resizing windows, such as resizeby() or resizeto(). usage notes if you need to obtain the width of the window minus the scrollbar and borders, use the root <html> element's clientwidth property instead. the innerwidth property is available on any window or object that behaves like a window, such as a frame or tab. ...
... working draft initial definition ...

window.location - Web APIs
the window.location read-only property returns a location object with information about the current location of the document. though window.location is a read-only location object, you can also assign a domstring to it. this means that you can work with location as if it were a string in most cases: location = 'http://www.example.com' is a synonym of location.href = 'http://www.example.com'. see location for all available properties. syntax var oldlocation = location; location = newlocation; examples basic example alert(location); // alerts "/docs/web/api/window/location" example #1: navigate to a new page whenever a new value is assigned to the location object, a document will be loaded using the url as if location.assign() had been called with the modified url. note that security se...
...und(_scrolly + (_nodey - _scrolly) * _itframe / nframes); document.documentelement.scrollleft = math.round(_scrollx + (_nodex - _scrollx) * _itframe / nframes); if (_usehash && _itframe === nframes) { location.hash = _bookmark; } _itframe++; } function _chkowner () { if (_isbot) { _isbot = false; return; } if (_scrollid > -1) { clearinterval(_scrollid); _scrollid = -1; } } if (window.addeventlistener) { window.addeventlistener("scroll", _chkowner, false); } else if (window.attachevent) { window.attachevent("onscroll", _chkowner); } return function (sbookmark, busehash) { var onode = document.queryselector(sbookmark); _scrolly = document.documentelement.scrolltop; _scrollx = document.documentelement.scrollleft; _bookmark = sbookmark; _usehash = busehash === tr...
... recommendation initial definition. ...
... recommendation initial definition. ...

Window: message event - Web APIs
the message event is fired on a window object when the window receives a message, for example from a call to window.postmessage() from another browsing context. ...
...ct when the window receives a message, for example from a call to window.postmessage() from another browsing context. ...
....postmessage() from another browsing context. ...
... bubbles no cancelable no interface messageevent event handler property onmessage examples suppose a script sends a message to a different browsing context, such as another <iframe>, using code like this: const targetframe = window.top.frames[1]; const targetorigin = 'https://example.org'; const windowmessagebutton = document.queryselector('#window-message'); windowmessagebutton.addeventlistener('click', () => { targetframe.postmessage('hello there', targetorigin); }); the receiver can listen for the message using addeventlistener() with code like this: window.addeventlistener('message', (event) => { console.log(`received message: ${event.data}`); }); alternatively the listener could use the onmessage event handler property: wi...

Window.personalbar - Web APIs
returns the personalbar object, whose visibility can be toggled in the window. syntax objref =window.personalbar example fixme: https://bugzilla.mozilla.org/show_bug.cgi?id=790023 the following complete html example shows the way that the visible property of the various "bar" objects is used, and also the change to the privileges necessary to write to the visible property of any of the bars on an existing window. due to deprecation of enableprivilege this functionality can not be used in web pages. enableprivilege is disabled in firefox 15 and will be removed in firefox 17. ...
...and also the change to the privileges necessary to write to the visible property of any of the bars on an existing window. due to deprecation of enableprivilege this functionality can not be used in web pages. enableprivilege is disabled in firefox 15 and will be removed in firefox 17. ...
...any of the bars on an existing window. due to deprecation of enableprivilege this functionality can not be used in web pages. enableprivilege is disabled in firefox 15 and will be removed in firefox 17. <!doctype html> <html> <head> <title>various dom tests</title> <script> // changing bar states on the existing window netscape.security.privilegemanager.enableprivilege("universalbrowserwrite"); window.personalbar.visible = !window.personalbar.visible; </script> </head> <body> <p>various dom tests</p> </body> </html> notes when you load the example page above, the browser displays the following dialog: to toggle the visibility of these bars, you must either sign your scripts or enable the appropriate privileges, as in the example above. also be aware that dynamically updating the visibi...
...cript> </head> <body> <p>various dom tests</p> </body> </html> notes when you load the example page above, the browser displays the following dialog: to toggle the visibility of these bars, you must either sign your scripts or enable the appropriate privileges, as in the example above. also be aware that dynamically updating the visibilty of the various toolbars can change the size of the window rather dramatically, and may affect the layout of your page. specifications specification status comment html living standardthe definition of 'window.personalbar' in that specification. living standard html5the definition of 'window.personalbar' in that specification. recommendation ...

Window.requestAnimationFrame() - Web APIs
the method takes a callback as an argument to be invoked before the repaint. note: your callback routine must itself call requestanimationframe() if you want to animate another frame at the next repaint. you should call this method whenever you're ready to update your animation onscreen. this will request that your animation function be called before the browser performs the next repaint. the number of callbacks is usually 60 times per second, but will generally match the display refresh rate in most web browsers as per w3c recommendation. ...
...ack's workload. this timestamp is a decimal number, in milliseconds, but with a minimal precision of 1ms (1000 µs). be sure to always use the first argument (or some other method for getting the current time) to calculate how much the animation will progress in a frame, otherwise the animation will run faster on high refresh rate screens. check the example below for a way to do this. syntax window.requestanimationframe(callback); parameters callback the function to call when it's time to update your animation for the next repaint. the callback function is passed one single argument, a domhighrestimestamp similar to the one returned by performance.now(), indicating the point in time when requestanimationframe() starts to execute callback functions. return value a long integer value...
...gument, a domhighrestimestamp similar to the one returned by performance.now(), indicating the point in time when requestanimationframe() starts to execute callback functions. return value a long integer value, the request id, that uniquely identifies the entry in the callback list. this is a non-zero value, but you may not make any other assumptions about its value. you can pass this value to window.cancelanimationframe() to cancel the refresh callback request. example in this example, an element is animated for 2 seconds (2000 milliseconds). the element moves at a speed of 0.1px/ms to the right, so its relative position (in css pixels) can be calculated in function of the time elapsed since the start of the animation (in milliseconds) with 0.1 * elapsed. the element's final position is 20...
...d('some-element-you-want-to-animate'); let start; function step(timestamp) { if (start === undefined) start = timestamp; const elapsed = timestamp - start; // `math.min()` is used here to make sure that the element stops at exactly 200px. element.style.transform = 'translatex(' + math.min(0.1 * elapsed, 200) + 'px)'; if (elapsed < 2000) { // stop the animation after 2 seconds window.requestanimationframe(step); } } window.requestanimationframe(step); notes edge versions below 17 and internet explorer do not reliably fire requestanimationframe before the paint cycle. specification specification status comment html living standardthe definition of 'requestanimationframe' in that specification. living standard no change, supersedes the ...

Window.resizeBy() - Web APIs
the window.resizeby() method resizes the current window by a specified amount. syntax window.resizeby(xdelta, ydelta) parameters xdelta is the number of pixels to grow the window horizontally. ydelta is the number of pixels to grow the window vertically. example // shrink the window window.resizeby(-200, -200); notes this method resizes the window relative to its current size. to resize the window in absolute terms, use window.resizeto(). creating and resizing an external window for security reasons, it's no longer possible in firefox for a website to change the default size of a window in a browser if the window wasn’t created by window.open(), or contains more than one tab. see the compatability table for details on the change. ...
...current size. to resize the window in absolute terms, use window.resizeto(). creating and resizing an external window for security reasons, it's no longer possible in firefox for a website to change the default size of a window in a browser if the window wasn’t created by window.open(), or contains more than one tab. see the compatability table for details on the change. even if you create window by window.open() it is not resizable by default. to make the window resizable, you must open it with the "resizable" feature. ...
...er possible in firefox for a website to change the default size of a window in a browser if the window wasn’t created by window.open(), or contains more than one tab. see the compatability table for details on the change. even if you create window by window.open() it is not resizable by default. to make the window resizable, you must open it with the "resizable" feature. // create resizable window myexternalwindow = window.open("http://myurl.domain", "mywindowname", "resizable"); // resize window to 500x500 myexternalwindow.resizeto(500, 500); // make window relatively smaller to 400x400 myexternalwindow.resizeby(-100, -100); the window you create must respect the same origin policy. ...
...he window resizable, you must open it with the "resizable" feature. // create resizable window myexternalwindow = window.open("http://myurl.domain", "mywindowname", "resizable"); // resize window to 500x500 myexternalwindow.resizeto(500, 500); // make window relatively smaller to 400x400 myexternalwindow.resizeby(-100, -100); the window you create must respect the same origin policy. if the window you open is not in the same orgin as the current window, you will not be able to resize, or access any information on, that window/tab. specifications specification status comment css object model (cssom) view modulethe definition of 'window.resizeby()' in that specification. working draft ...

Window.showModalDialog() - Web APIs
this feature has been removed. please fix your web sites and applications. this method was removed in chrome 43 and firefox 56. the window.showmodaldialog() created and displayed a modal dialog box containing a specified html document. syntax returnval = window.showmodaldialog(uri[, arguments][, options]); returnval holds the returnvalue property as set by the document specified by uri. uri is the url of the document to display in the dialog. arguments is an optional variant containing values passed to the dialog; these are made available in the window object's window.dialogarguments property. ...
...default is yes. dialogheight: height the height of the dialog box in pixels. ...
...default is yes. dialogheight: height the height of the dialog box in pixels. dialogleft: left distance of the dialog box from the left edge of the desktop. ...
... the height of the dialog box in pixels. dialogleft: left distance of the dialog box from the left edge of the desktop. dialogwidth: width the width of the dialog box in pixels. dialogtop: top distance of the dialog box from the top edge of the desktop. resizable: {on | off | yes | no | 1 | 0 } if this argument's value is on, yes, or 1, the dialog window can be resized by the user; otherwise its size is fixed. the default value is no. scroll: {on | off | yes | no | 1 | 0 } if on, yes, or 1, the dialog window has scroll bars; otherwise its size is fixed. default is no. note: firefox does not implement the dialoghide, edge, status, or unadorned arguments. examples try out showmodaldialog(). notes showmodaldialog() was briefly...

Window.speechSynthesis - Web APIs
after defining some necessary variables, we retrieve a list of the voices available using speechsynthesis.getvoices() and populate a select menu with them so the user can choose what voice they want. ...
...after defining some necessary variables, we retrieve a list of the voices available using speechsynthesis.getvoices() and populate a select menu with them so the user can choose what voice they want. ...
...after defining some necessary variables, we retrieve a list of the voices available using speechsynthesis.getvoices() and populate a select menu with them so the user can choose what voice they want. ...
...enu with them so the user can choose what voice they want. inside the inputform.onsubmit handler, we stop the form submitting with preventdefault(), create a new speechsynthesisutterance instance containing the text from the text <input>, set the utterance's voice to the voice selected in the <select> element, and start the utterance speaking via the speechsynthesis.speak() method. ...

Window.statusbar - Web APIs
the window.statusbar property returns the statusbar object, whose visibility can be toggled in the window. syntax objref = window.statusbar example the following complete html example shows a way that the visible property of the various "bar" objects is used, and also the change to the privileges necessary to write to the visible property of any of the bars on an existing window. ...
...usbar example the following complete html example shows a way that the visible property of the various "bar" objects is used, and also the change to the privileges necessary to write to the visible property of any of the bars on an existing window. ...
...operty of the various "bar" objects is used, and also the change to the privileges necessary to write to the visible property of any of the bars on an existing window. <!doctype html> <html lang="en"> <head> <meta charset="utf-8" /> <title>various dom tests</title> <script> // changing bar states on the existing window netscape.security.privilegemanager.enableprivilege("universalbrowserwrite"); window.statusbar.visible=!window.statusbar.visible; </script> </head> <body> <p>various dom tests</p> </body> </html> notes when you load the example page above, the browser displays the following dialog: to toggle the visibility of these bars, you must either sign your scripts or enable the appropriate privileges, as in the example above. also be aware that dynamically updating the visibilty of...
...cript> </head> <body> <p>various dom tests</p> </body> </html> notes when you load the example page above, the browser displays the following dialog: to toggle the visibility of these bars, you must either sign your scripts or enable the appropriate privileges, as in the example above. also be aware that dynamically updating the visibilty of the various toolbars can change the size of the window rather dramatically, and may affect the layout of your page. specifications specification status comment html living standardthe definition of 'window.statusbar' in that specification. living standard html5the definition of 'window.statusbar' in that specification. recommendation ...

Window: unhandledrejection event - Web APIs
this is useful for debugging and for providing fallback error handling for unexpected situations. bubbles no cancelable yes interface promiserejectionevent event handler property onunhandledrejection usage notes allowing the unhandledrejection event to bubble will eventually result in an error message being output to the console. ...
... event. the event includes two useful pieces of information: promise the actual promise which was rejected with no handler available to deal with the rejection. reason the reason that would have been passed into the rejection handler if one had existed. see catch() for details. basic error logging this example simply logs information about the unhandled promise rejection to the console. ...
...ejection handler if one had existed. see catch() for details. basic error logging this example simply logs information about the unhandled promise rejection to the console. window.addeventlistener("unhandledrejection", event => { console.warn(`unhandled promise rejection: ${event.reason}`); }); you can also use the onunhandledrejection event handler property to set up the event listener: window.onunhandledrejection = event => { console.warn(`unhandled promise rejection: ${event.reason}`); }; preventing default handling many environments (such as node.js) report unhandled promise rejections to the console by default. you can prevent that from happening by adding a handler for unhandledrejection events that—in addition to any other tasks you wish to perform—calls preventdefault()...
...such as node.js) report unhandled promise rejections to the console by default. you can prevent that from happening by adding a handler for unhandledrejection events that—in addition to any other tasks you wish to perform—calls preventdefault() to cancel the event, preventing it from bubbling up to be handled by the runtime's logging code. this works because unhandledrejection is cancelable. window.addeventlistener('unhandledrejection', function (event) { // ...your code here to handle the unhandled rejection... // prevent the default handling (such as outputting the // error to the console) event.preventdefault(); }); specifications specification status comment html living standardthe definition of 'unhandledrejection' in that specification. livi...

WindowClient.focus() - Web APIs
the focus() method of the windowclient interface gives user input focus to the current client and returns a promise that resolves to the existing windowclient. syntax windowclient.focus().then(function(windowclient) { // do something with your windowclient once it has been focused }); parameters none. return value a promise that resolves to the existing windowclient. ...
...een focused }); parameters none. return value a promise that resolves to the existing windowclient. ...
... working draft initial definition. ...
... working draft initial definition. ...

WindowOrWorkerGlobalScope.btoa() - Web APIs
you can use this method to encode data which may otherwise cause communication problems, transmit it, then use the atob() method to decode the data again. for example, you can encode control characters such as ascii values 0 through 31. syntax var encodeddata = scope.btoa(stringtoencode); parameters stringtoencode the binary string to encode. return value an ascii string containing the base64 representation of stringtoencode. exceptions invalidcharactererror the string contained a character that did not fit in a single byte. see "unicode strings" below for more detail. ...
... 0 through 31. syntax var encodeddata = scope.btoa(stringtoencode); parameters stringtoencode the binary string to encode. return value an ascii string containing the base64 representation of stringtoencode. exceptions invalidcharactererror the string contained a character that did not fit in a single byte. see "unicode strings" below for more detail. example const encodeddata = window.btoa('hello, world'); // encode a string const decodeddata = window.atob(encodeddata); // decode the string unicode strings the btoa() function takes a javascript string as a parameter. in javascript strings are represented using the utf-16 character encoding: in this encoding, strings are represented as a sequence of 16-bit (2 byte) units. every ascii character fits into the first byte of one...
...tes.buffer)); } const decoded = atob(encoded); const original = frombinary(decoded); console.log(original); // ☸☹☺☻☼☾☿ polyfill you can use a polifill from https://github.com/maxart2501/base64-js/blob/master/base64.js for browsers that don't support it. specifications specification status comment html living standardthe definition of 'windoworworkerglobalscope.btoa()' in that specification. living standard method moved to the windoworworkerglobalscope mixin in the latest spec. html 5.1the definition of 'windowbase64.btoa()' in that specification. recommendation snapshot of html living standard. no change. html5the definition of 'windowbase64.btoa()' in that specification. recommendation snapshot of...
... specification. living standard method moved to the windoworworkerglobalscope mixin in the latest spec. html 5.1the definition of 'windowbase64.btoa()' in that specification. recommendation snapshot of html living standard. no change. html5the definition of 'windowbase64.btoa()' in that specification. recommendation snapshot of html living standard. creation of windowbase64 (properties where on the target before it). ...

WindowOrWorkerGlobalScope.fetch() - Web APIs
a fetch() promise only rejects when a network error is encountered (which is usually when there’s a permissions issue or similar). ...
... a fetch() promise only rejects when a network error is encountered (which is usually when there’s a permissions issue or similar). ...
...rts the process of fetching a resource from the network, returning a promise which is fulfilled once the response is available. the promise resolves to the response object representing the response to your request. the promise does not reject on http errors — it only rejects on network errors. you must use then handlers to check for http errors. windoworworkerglobalscope is implemented by both window and workerglobalscope, which means that the fetch() method is available in pretty much any context in which you might want to fetch resources. a fetch() promise only rejects when a network error is encountered (which is usually when there’s a permissions issue or similar). a fetch() promise does not reject on http errors (404, etc.). instead, a then() handler must check the response.ok and/or ...
... you can also use an object literal as headers in init. const myinit = { method: 'get', headers: { 'content-type': 'image/jpeg' }, mode: 'cors', cache: 'default' }; let myrequest = new request('flowers.jpg', myinit); specifications specification status comment fetchthe definition of 'fetch()' in that specification. living standard defined in a windoworworkerglobalscope partial in the newest spec. fetchthe definition of 'fetch()' in that specification. living standard initial definition credential management level 1 working draft adds federatedcredential or passwordcredential instance as a possible value for init.credentials. ...

Static Analysis for Windows Code under Linux - Archive of obsolete content
we highly recommend you to read the cross compiling manual and the dehydra build manual before you start the following reading. build gcc corss-compiler with plugin support by default gcc does not support plugins. dehydra requires patching gcc such that it can load plugins as shared libraries: # prepare a directory mkdir $home/dehydra cd $home/dehydra #obtain gcc 4.3 sources wget ftp://mirrors.kernel.org/gnu/gcc/gcc...-4.3.0.tar.bz2 tar jxvf gcc-4.3.0.tar.bz2 # get the patches which enable plugins cd gcc-4.3.0/ # create an hg repository. ...
...the correct shared library. so, we should make a linux native compiler with plugin support to make treehydra! this sound crazy, but it may be the only right way to do this. just follow this and this to compile both dehydra and treehydra shared libraries. and these libraries can be used directly with our cross compiler. check the build run: make check_treehydra run static analysis on mozilla windows code static analysis is hooked into mozilla repository from mozilla 2. you can obtain mozilla 2 code by: hg clone http://hg.mozilla.org/mozilla-central/ and compose a .mozconfig file for cross-compiling mozilla with static analysis hooked: #specify the cross compile cross_compile=1 ac_add_options --enable-application=browser ac_add_options --host=i686-linux ac_add_options --target=i686-ming...
...ository from mozilla 2. you can obtain mozilla 2 code by: hg clone http://hg.mozilla.org/mozilla-central/ and compose a .mozconfig file for cross-compiling mozilla with static analysis hooked: #specify the cross compile cross_compile=1 ac_add_options --enable-application=browser ac_add_options --host=i686-linux ac_add_options --target=i686-mingw32 ac_add_options --enable-default-toolkit=cairo-windows mk_add_options moz_objdir=@topsrcdir@/../mozilla-mingw # mozilla trunk uses many vista only features on windows, so we should disable some components to make it buildable with mingw32. ac_add_options --enable-debug ac_add_options --disable-optimize ac_add_options --disable-tests ac_add_options --disable-embedding-tests ac_add_options --disable-installer ac_add_options --disable-accessibil...

windowsShortcut - Archive of obsolete content
ashortcutpath a filespecobject representing the absolute path (not including filename) to where the shortcut is to be created. ...
... ashortcutpath a filespecobject representing the absolute path (not including filename) to where the shortcut is to be created. ...
...at atarget requires. aicon a filespecobject representing the absolute path (including fiilename) to a file that contains icons. can be either .ico, .dll, .exe, or any other binary file that contains icons. aiconid index of the icon from aicon to use for this shortcut. returns an integer error code. for a list of possible values, see return codes. example see file.windowsshortcut in the script examples chapter. ...

prefwindow.onload - Archive of obsolete content
...
... ...
... ...

Specifying Startup Chrome Window - Archive of obsolete content
main chrome window in order to specify the main chrome window of your xulrunner application, you'll need to add a preferences file to your application directory structure and add a preference named toolkit.defaultchromeuri to that file. let's look at the xulmine xulrunner application. it's directory structure is as follows: xulmine ├───chrome ├───components └───defaults └───preferences in defaults/preferences, there is a file named xulmine.js. its contents are: pref("toolkit.defaultchromeuri", "chrome://xulmine/content/xulmine.xul"); the toolkit.defaultchromeuri preference specifies that the xul window at chrome://xulmine/content/xulmine.xul is the main application window. ...
......
...ferences, there is a file named xulmine.js. its contents are: pref("toolkit.defaultchromeuri", "chrome://xulmine/content/xulmine.xul"); the toolkit.defaultchromeuri preference specifies that the xul window at chrome://xulmine/content/xulmine.xul is the main application window. specifying a single instance main window by default, each time the user launches the application xulrunner opens the window specified by toolkit.defaultchromeuri. an application wishing to have only one main window should set the toolkit.singletonwindowtype preference and specify the windowtype attribute on the main application window. specifying window features by default, the main window is opened as a resizeable, non-dialog chrome window. this default can be changed by setting the toolkit.defaultchromefeatures pr...

-moz-window-shadow - Archive of obsolete content
the -moz-window-shadow css property specifies whether a window will have a shadow. it only works on mac os x. this property is not standard and from firefox 44 onwards cannot be used on websites anymore. firefox 3 added support for transparent windows on mac os x. however, for these windows shadows were turned off and there was no way to turn them on. in firefox 3.5 the default changed, with all windows having a shadow. this version introduced the -moz-window-shadow css property to provide a way to turn off unwanted shadows. initial valuedefaultapplies toall elements that create native windows, e.g. <window>, <panel>inheritednocomputed valueas specifiedanimation typediscrete syntax the -moz-window-shadow property is specified as one of the keyword values listed below. values defau...
... having a shadow. this version introduced the -moz-window-shadow css property to provide a way to turn off unwanted shadows. initial valuedefaultapplies toall elements that create native windows, e.g. <window>, <panel>inheritednocomputed valueas specifiedanimation typediscrete syntax the -moz-window-shadow property is specified as one of the keyword values listed below. values default the window will have a shadow with the default window shadow style. menu the window will have the shadow style that's appropriate for menus. tooltip the window will have the shadow style that's appropriate for tooltips. sheet the window will have the shadow style that's appropriate for sheet windows. none the window won't have a shadow. formal syntax default | menu | tooltip | sheet | none examp...
... the default window shadow style. menu the window will have the shadow style that's appropriate for menus. tooltip the window will have the shadow style that's appropriate for tooltips. sheet the window will have the shadow style that's appropriate for sheet windows. none the window won't have a shadow. ...

:-moz-system-metric(windows-default-theme) - Archive of obsolete content
the :-moz-system-metric(windows-default-theme) css pseudo-class matches an element if the user is currently using one of the following themes in windows: luna, royale, zune, or aero (i.e., vista basic, vista standard, or aero glass). this will exclude windows classic themes as well as third-party themes. this selector is intended for use mainly by theme developers. note: since firefox 58, this pseudo-class is no longer available to web content — it is only available internally (e.g. to xul / chrome code). see bug 1396066 for more details. example html content <p id="defaultthemes"> this paragraph should have a green background with luna/royale/zune/aero windows themes and red with other themes. </p> <p id="nondefaultthemes"> this paragraph should have a green backgroun...
...eudo-class is no longer available to web content — it is only available internally (e.g. to xul / chrome code). see bug 1396066 for more details. example html content <p id="defaultthemes"> this paragraph should have a green background with luna/royale/zune/aero windows themes and red with other themes. </p> <p id="nondefaultthemes"> this paragraph should have a green background with windows classic or third-party themes and red with other themes. ...
... luna/royale/zune/aero windows themes and red with other themes. </p> <p id="nondefaultthemes"> this paragraph should have a green background with windows classic or third-party themes and red with other themes. </p> <p id="notsupported">theme detection is not supported.</p> css content #defaultthemes, #nondefaultthemes { background-color: #ffa0a0; } #defaultthemes:-moz-system-metric(windows-default-theme) { background-color: #a0ffa0; } #nondefaultthemes:not(-moz-system-metric(windows-default-theme)) { background-color: #a0ffa0; } #notsupported:-moz-system-metric(windows-default-theme), #notsupported:not(:-moz-system-metric(windows-default-theme)) { display: none; } specifications not part of any specification. ...

browser.dom.window.dump.file
c:\dump.txt . it will be created if it doesn't exist yet. the line breaks have to be in the argument of the dump function, else successive dump calls will get logged into the same line. ...
...ump.enabled is set to true. changes require an application restart. ...
...troduction: pushed to nightly on 2009-04-24 bugs: bug 489938 values the value holds the file system path for the file in which the content of the window.dump() calls get written, e.g. c:\dump.txt . it will be created if it doesn't exist yet. ...

nsIDOMWindow2
dom/interfaces/base/nsidomwindow2.idlscriptable this interface is the primary interface for a dom window object. it represents a single window object that may contain child windows if the document in the window contains an html frameset document, or if the document contains <iframe> elements. inherits from: nsidomwindow last changed in gecko 1.9 (firefox 3) because nsidomwindow is frozen, this interface was introduced in firefox 3 (gecko 1.9) to allow dom windows to take on new features. dom windows implement nsidomwindow2, which is a subclass of nsidomwindow. in gecko 7.0 this interface has been merged into nsidomwindow. attributes attribute type description applicationcache nsidomofflineresourcelist the application cache object for this window. r...
... introduced in firefox 3 (gecko 1.9) to allow dom windows to take on new features. dom windows implement nsidomwindow2, which is a subclass of nsidomwindow. in gecko 7.0 this interface has been merged into nsidomwindow. attributes attribute type description applicationcache nsidomofflineresourcelist the application cache object for this window. read only. windowroot nsidomeventtarget the window root for this window. this is useful for connecting event listeners to this window as well as every other window nested in that window root. not accessible from scripts. read only. ...
...ype description applicationcache nsidomofflineresourcelist the application cache object for this window. read only. windowroot nsidomeventtarget the window root for this window. ...

nsIWindowsShellService
inherits from: nsishellservice last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) method overview string getregistryentry(in long ahkeyconstant, in string asubkeyname, in string avaluename); obsolete since gecko 1.8 void restorefilesettings(in boolean aforallusers); obsolete since gecko 1.9 void shortcutmaintenance(); attributes attribute type description desktopbackgroundcolor unsigned long the desktop background color, visible when no background image is used, or if the background image is centered and does not fill the entire screen. ...
...ion desktopbackgroundcolor unsigned long the desktop background color, visible when no background image is used, or if the background image is centered and does not fill the entire screen. a rgb value, where (r << 24 | g << 16 | b) obsolete since gecko 1.8 unreadmailcount unsigned long the number of unread mail messages for the current user. read only. constants valid starting keys for the windows registry. constant value description hkcr 0 hkey_classes_root. obsolete since gecko 1.8 hkcc 1 hkey_current_config. obsolete since gecko 1.8 hkcu 2 hkey_current_user. obsolete since gecko 1.8 hklm 3 hkey_local_machine. obsolete since gecko 1.8 hku 4 hkey_users. obsolete since gecko 1.8 methods getregistryentry() obsolete since gecko 1.8 (firefox 1.5 / thunderbird...
... hkcr 0 hkey_classes_root. obsolete since gecko 1.8 hkcc 1 hkey_current_config. obsolete since gecko 1.8 hkcu 2 hkey_current_user. obsolete since gecko 1.8 hklm 3 hkey_local_machine. obsolete since gecko 1.8 hku 4 hkey_users. obsolete since gecko 1.8 methods getregistryentry() obsolete since gecko 1.8 (firefox 1.5 / thunderbird 1.5 / seamonkey 1.0) retrieves a windows registry entry value. string getregistryentry( in long ahkeyconstant, in string asubkeyname, in string avaluename ); parameters ahkeyconstant the starting key, using the constants defined above. asubkeyname the sub key to locate. avaluename the value to locate in the sub key. the empty string returns the default value of the sub key. return value the value of the specified sub key/value...

Window: beforeunload event - Web APIs
the document is still visible and the event is still cancelable at this point. bubbles no cancelable yes interface event event handler property onbeforeunload this event enables a web page to trigger a confirmation dialog asking the user if they really want to leave the page. if the user confirms, the browser navigates to the new page, otherwise it cancels the navigation. according to the specification, to show the confirmation dialog an event handler should call preventdefault() on the event. ...
...turned string in the confirmation dialog, enabling the event handler to display a custom message to the user. however, this is deprecated and no longer supported in most browsers. to combat unwanted pop-ups, browsers may not display prompts created in beforeunload event handlers unless the page has been interacted with, or may even not display them at all. attaching an event handler/listener to window or document's beforeunload event prevents browsers from using in-memory page navigation caches, like firefox's back-forward cache or webkit's page cache. the html specification states that calls to window.alert(), window.confirm(), and window.prompt() methods may be ignored during this event. see the html specification for more details. examples the html specification states that authors shoul...
... event.preventdefault(); // chrome requires returnvalue to be set. ...

Window.close() - Web APIs
the window.close() method closes the current window, or the window on which it was called. this method can only be called on windows that were opened by a script using the window.open() method. if the window was not opened by a script, an error similar to this one appears in the console: scripts may not close windows that were not opened by script. note also that close() has no effect when called on window objects returned by htmliframe​element​.content​window. syntax window.close(); examples closing a window opened with window.open() this example shows a method which opens a window and a second one which closes the window; this demonstrates how to use window.close() to close a window opened by calling window.open(). ...
... when called on window objects returned by htmliframe​element​.content​window. syntax window.close(); examples closing a window opened with window.open() this example shows a method which opens a window and a second one which closes the window; this demonstrates how to use window.close() to close a window opened by calling window.open(). //global var to store a reference to the opened window var openedwindow; function openwindow() { openedwindow = window.open('moreinfo.htm'); } function closeopenedwindow() { openedwindow.close(); } closing the current window in the past, when you called the window object's close() method directly, rather than calling close() on a window instance, the browser closed the frontmost window, whether your script created that window or not. this is...
....htm'); } function closeopenedwindow() { openedwindow.close(); } closing the current window in the past, when you called the window object's close() method directly, rather than calling close() on a window instance, the browser closed the frontmost window, whether your script created that window or not. this is no longer the case; for security reasons, scripts are no longer allowed to close windows they didn't open. (firefox 46.0.1: scripts can not close windows, they had not opened) function closecurrentwindow() { window.close(); } specification specification status comment html living standardthe definition of 'window.close()' in that specification. living standard html5the definition of 'window.close()' in that specification. recommendati...

Window.customElements - Web APIs
the customelements read-only property of the window interface returns a reference to the customelementregistry object, which can be used to register new custom elements and get information about previously registered custom elements. ...
...w interface returns a reference to the customelementregistry object, which can be used to register new custom elements and get information about previously registered custom elements. ...
...per(); const template = document .getelementbyid('element-details-template') .content; const shadowroot = this.attachshadow({mode: 'open'}) .appendchild(template.clonenode(true)); } } ); see our web-components-examples repo for more usage examples. specification specification status comment html living standardthe definition of 'window.customelements' in that specification. living standard initial definition. browser compatibility the compatibility table in this page is generated from structured data. if you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for a...

Window: deviceorientation event - Web APIs
t is fired when fresh data is available from an orientation sensor about the current orientation of the device as compared to the earth coordinate frame. this data is gathered from a magnetometer inside the device. see orientation and motion data explained for details. ...
...orientation sensor about the current orientation of the device as compared to the earth coordinate frame. this data is gathered from a magnetometer inside the device. see orientation and motion data explained for details. ...
...orientation of the device as compared to the earth coordinate frame. this data is gathered from a magnetometer inside the device. see orientation and motion data explained for details. ...

window.dump() - Web APIs
window.dump() prints messages to the (native) console. syntax window.dump(message); dump(message); parameters message is the string message to log. notes a common use of dump() is to debug javascript. the message passed to dump() is sent to the system console (native console) if the firefox process was started with the -console option. if the -console option was not specified then the output goes to stderr. output from dump() is not sent to the browser console. output can be sent to the browser console using console.log(). privileged code can also use components.utils.reporterror and nsiconsoleservice to log messages to the error console/browser console. ...
...nsole option was not specified then the output goes to stderr. output from dump() is not sent to the browser console. output can be sent to the browser console using console.log(). privileged code can also use components.utils.reporterror and nsiconsoleservice to log messages to the error console/browser console. dump() is also available to xpcom components implemented in javascript, even though window is not the global object in components. it is also explicitly made available in sandboxes. however, this use of dump is not affected by the preference mentioned below -- it will always be shown. it is therefore advisable to either check this preference yourself or use a debugging preference of your own to make sure you don't send lots of debugging content to a user's console when they might not b...
...on't send lots of debugging content to a user's console when they might not be interested in it at all. note that dump output from xpcom components goes to stderr, while dump called elsewhere will output to stdout. in gecko dump() is disabled by default – it doesn't do anything but doesn't raise an error either. to see the dump output you have to enable it by setting the preference browser.dom.window.dump.enabled to true. you can set the preference in about:config or in a user.js file. note: this preference is not listed in about:config by default, you may need to create it (right-click the content area -> new -> boolean). on windows, you will need a console to actually see anything. if you don't have one already, closing the application and re-opening it with the command line parameter -con...

Window.event - Web APIs
the read-only window property event returns the event which is currently being handled by the site's code. outside the context of an event handler, the value is always undefined. you should avoid using this property in new code, and should instead use the event passed into the event handler function. this property is not universally supported and even when supported introduces potential fragility to your code. note: this property can be fragile, in that there may be situations in which the returned event is not the expected value. in addition, window.event is not accurate for events dispatched within shadow trees. specifications specification status comment domthe definition of 'window.event' in that specification. living standard initial definition. b...
...to change preferences in firefox, visit about:config.ie full support 4opera full support 7safari full support 1.1webview android full support 1chrome android ...
...to change preferences in firefox, visit about:config.opera android full support 10.1safari ios full support 1samsung internet android full support 1.0legend full support ...

Window.find() - Web APIs
acasesensitive boolean. if true, specifies a case-sensitive search. abackwards boolean. if true, specifies a backward search. awraparound boolean. if true, specifies a wrap around search. awholeword unimplemented boolean. if true, specifies a whole word search. this is not implemented; see bug 481513. asearchinframes boolean. if true, specifies a search in frames. returns true if the string is found; otherwise, false. ...
...boolean. if true, specifies a wrap around search. awholeword unimplemented boolean. if true, specifies a whole word search. this is not implemented; see bug 481513. asearchinframes boolean. if true, specifies a search in frames. returns true if the string is found; otherwise, false. ...
...(text) { alert("string \x22" + text + "\x22 found? " + window.find(text)); } html <p>apples, bananas, and oranges.</p> <button type="button" onclick='findstring("apples")'>search for apples</button> <button type="button" onclick='findstring("banana")'>search for banana</button> <button type="button" onclick='findstring("orange")'>search for orange</button> result notes in some browsers, window.find() selects (highlights) the found content on the site. specification this is not part of any specification. ...

Window.frames - Web APIs
returns the window itself, which is an array-like object, listing the direct sub-frames of the current window. syntax framelist = window.frames; framelist is a list of frame objects. it is similar to an array in that it has a length property and its items can be accessed using the [i] notation. framelist === window evaluates to true. each item in the window.frames pseudo-array represents the window object corresponding to the given <frame>'s or <iframe>'s content, not the (i)frame dom element (i.e., window.frames[0] is the same thing as document.getelementsbytagname("iframe")[0].contentwindow). for more details about the returned value, refer to this thread on mozilla.dev.platform. ...
...evaluates to true. each item in the window.frames pseudo-array represents the window object corresponding to the given <frame>'s or <iframe>'s content, not the (i)frame dom element (i.e., window.frames[0] is the same thing as document.getelementsbytagname("iframe")[0].contentwindow). for more details about the returned value, refer to this thread on mozilla.dev.platform. example var frames = window.frames; // or // var frames = window.parent.frames; for (var i = 0; i < frames.length; i++) { // do something with each subframe as frames[i] frames[i].document.body.style.background = "red"; } specifications specification status comment html living standardthe definition of 'window.frames' in that specification. living standard html5the definiti...
...; // or // var frames = window.parent.frames; for (var i = 0; i < frames.length; i++) { // do something with each subframe as frames[i] frames[i].document.body.style.background = "red"; } specifications specification status comment html living standardthe definition of 'window.frames' in that specification. living standard html5the definition of 'window.frames' in that specification. recommendation ...

Window.isSecureContext - Web APIs
}); } specifications specification status comment secure contexts candidate recommendation initial definition. ...
... }); } specifications specification status comment secure contexts candidate recommendation initial definition. ...
... }); } specifications specification status comment secure contexts candidate recommendation initial definition. ...

Window: load event - Web APIs
ded, including all dependent resources such as stylesheets and images. this is in contrast to domcontentloaded, which is fired as soon as the page dom has been loaded, without waiting for resources to finish loading. ...
...e dom has been loaded, without waiting for resources to finish loading. ...
...ntrol; display: flex; align-items: center; justify-content: center; } .event-log { grid-area: log; } .event-log-contents { resize: none; } label, button { display: block; } #reload { height: 2rem; } js const log = document.queryselector('.event-log-contents'); const reload = document.queryselector('#reload'); reload.addeventlistener('click', () => { log.textcontent =''; window.settimeout(() => { window.location.reload(true); }, 200); }); window.addeventlistener('load', (event) => { log.textcontent = log.textcontent + 'load\n'; }); document.addeventlistener('readystatechange', (event) => { log.textcontent = log.textcontent + `readystate: ${document.readystate}\n`; }); document.addeventlistener('domcontentloaded', (event) => { log.textcontent = log...

Window: messageerror event - Web APIs
the messageerror event is fired on a window object when it receives a message that can't be deserialized. ...
... the messageerror event is fired on a window object when it receives a message that can't be deserialized. ...
...t receives a message that can't be deserialized. ...

Window.name - Web APIs
gets/sets the name of the window's browsing context. syntax string = window.name; window.name = string; example <script> // open a tab with a specific browsing context name const othertab = window.open("url1", "_blank"); if (othertab) othertab.name = "other-tab"; </script> <a href="url2" target="other-tab">this link will be opened in the other tab.</a> notes the name of the window is used primarily for setting targets for hyperlinks and forms. browsing contexts do not need to have names. it has also been used in some frameworks for providing cross-domain messaging (e.g., sessionvars and dojo's dojox.io.windowname) as a more secure alternative to jsonp. ...
...ther tab.</a> notes the name of the window is used primarily for setting targets for hyperlinks and forms. browsing contexts do not need to have names. it has also been used in some frameworks for providing cross-domain messaging (e.g., sessionvars and dojo's dojox.io.windowname) as a more secure alternative to jsonp. modern web applications hosting sensitive data should, however, not rely on window.name for cross-domain messaging but instead utilize the postmessage api. window.name will convert all values to their string representations by using the tostring method. specifications specification status comment html living standardthe definition of 'window.name' in that specification. ...
...owever, not rely on window.name for cross-domain messaging but instead utilize the postmessage api. window.name will convert all values to their string representations by using the tostring method. specifications specification status comment html living standardthe definition of 'window.name' in that specification. living standard html5the definition of 'window.name' in that specification. recommendation ...

Window.navigator - Web APIs
the window.navigator read-only property returns a reference to the navigator object, which has methods and properties about the application running the script. syntax navigatorobject = window.navigator examples example #1: browser detect and return a string var sbrowser, susrag = navigator.useragent; // the order matters here, and this may report false positives for unlisted browsers. if (susrag.indexof("firefox") > -1) { sbrowser = "mozilla firefox"; // "mozilla/5.0 (x11; ubuntu; linux x86_64; rv:61.0) gecko/20100101 firefox/61.0" } else if (susrag.indexof("samsungbrowser") > -1) { sbrowser = "samsung internet"; // "mozilla/5.0 (linux; android 9; samsung sm-g955f build/ppr1.180610.011) applewebkit/537.36 (khtml, like gecko) samsungbrowser/9.4 chrome/67.0.3396.87 mobile safari/53...
...wser/9.4 chrome/67.0.3396.87 mobile safari/537.36 } else if (susrag.indexof("opera") > -1 || susrag.indexof("opr") > -1) { sbrowser = "opera"; // "mozilla/5.0 (macintosh; intel mac os x 10_14_0) applewebkit/537.36 (khtml, like gecko) chrome/70.0.3538.102 safari/537.36 opr/57.0.3098.106" } else if (susrag.indexof("trident") > -1) { sbrowser = "microsoft internet explorer"; // "mozilla/5.0 (windows nt 10.0; wow64; trident/7.0; .net4.0c; .net4.0e; zoom 3.6.0; wbx 1.0.0; rv:11.0) like gecko" } else if (susrag.indexof("edge") > -1) { sbrowser = "microsoft edge"; // "mozilla/5.0 (windows nt 10.0; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/58.0.3029.110 safari/537.36 edge/16.16299" } else if (susrag.indexof("chrome") > -1) { sbrowser = "google chrome or chromium"; // "moz...
... living standard ...

Window.ondragdrop - Web APIs
rack. do not use it on production sites facing the web: it will not work for every user. there may also be large incompatibilities between implementations and the behavior may change in the future. removed in firefox 50, and never implemented in any other browser. use the modern standard html5 drag and drop feature instead. summary an event handler for drag and drop events sent to the window. syntax window.ondragdrop = funcref; window.addeventlistener("dragdrop", funcref, usecapturing); funcref the event handler function to be registered. the window.ondragdrop property and the ondragdrop attribute are not implemented in gecko (bug 112288), you have to use addeventlistener. see addeventlistener for details. example fire an alert on dragdrop in this example, an event liste...
...dragdrop = funcref; window.addeventlistener("dragdrop", funcref, usecapturing); funcref the event handler function to be registered. the window.ondragdrop property and the ondragdrop attribute are not implemented in gecko (bug 112288), you have to use addeventlistener. see addeventlistener for details. example fire an alert on dragdrop in this example, an event listener is added to the window (the event target). if, from an external source, a tab, a link, marked text or a file is dragged and dropped onto this window, the alert is fired. note how event.stoppropagation(); prevents the browser from loading the dropped tab, link or file. ...
... alert on dragdrop in this example, an event listener is added to the window (the event target). if, from an external source, a tab, a link, marked text or a file is dragged and dropped onto this window, the alert is fired. note how event.stoppropagation(); prevents the browser from loading the dropped tab, link or file. <html> <head><title>dragdroptest</title> <script type="text/javascript"> window.addeventlistener("dragdrop", testfunc, false); function testfunc(event) { alert("dragdrop!"); event.stoppropagation(); } </script> </head> <body> i am bodytext </body> </html> specification not part of specification. ...

Window: pagehide event - Web APIs
the pagehide event is sent to a window when the browser hides the current page in the process of presenting a different page from the session's history. for example, when the user clicks the browser's back button, the current page receives a pagehide event before the previous page is shown. bubbles no cancelable no interface pagetransitionevent event handler property onpagehide examples in this example, an event handler is established to watch for pagehide events and to perform special handling if the page is being persisted for possible reuse. ...
...ton, the current page receives a pagehide event before the previous page is shown. bubbles no cancelable no interface pagetransitionevent event handler property onpagehide examples in this example, an event handler is established to watch for pagehide events and to perform special handling if the page is being persisted for possible reuse. ...
...les in this example, an event handler is established to watch for pagehide events and to perform special handling if the page is being persisted for possible reuse. window.addeventlistener("pagehide", event => { if (event.persisted) { /* the page isn't being discarded, so it can be reused later */ } }, false); this can also be written using the onpagehide event handler property on the window: window.onpagehide = event => { if (event.persisted) { /* the page isn't being discarded, so it can be reused later */ } } specifications specification status comment html living standardthe definition of 'pagehide' in that specification. living standard initial specification. html5the definition of 'pagehide' in that specification. recomm...

Window.performance - Web APIs
recommendation defines now() method. ...
... recommendation defines now() method. ...
...line api, the high resolution time api, the navigation timing api, the user timing api, and the resource timing api. syntax performancedata = window.performance; value a performance object offering access to the performance and timing-related information offered by the apis it exposes. specifications specification status comment high resolution timethe definition of 'window.performance' in that specification. recommendation defines now() method. ...

WindowClient.visibilityState - Web APIs
the visibilitystate read-only property of the windowclient interface indicates the visibility of the current client. this value can be one of "hidden", "visible", or "prerender". syntax var myvisstate = windowclient.visibilitystate; value a domstring (see document.visibilitystate for values). ...
... the visibilitystate read-only property of the windowclient interface indicates the visibility of the current client. this value can be one of "hidden", "visible", or "prerender". syntax var myvisstate = windowclient.visibilitystate; value a domstring (see document.visibilitystate for values). ...
...e document.visibilitystate for values). example event.waituntil(clients.matchall({ type: "window" }).then(function(clientlist) { for (let i = 0; i < clientlist.length; i++) { let client = clientlist[i]; if (client.url == '/' && 'focus' in client) { if (client.visibilitystate === 'hidden') return client.focus(); } } } if (clients.openwindow) { return clients.openwindow('/'); } })); }); specifications specification status comment service workersthe definition of 'visibilitystate' in that specification. working draft initial definition. ...

WindowEventHandlers.onmessage - Web APIs
} specifications specification status comment html living standardthe definition of 'onmessage' in that specification. ...
...} specifications specification status comment html living standardthe definition of 'onmessage' in that specification. ...
...} specifications specification status comment html living standardthe definition of 'onmessage' in that specification. ...

WindowEventHandlers.onpopstate - Web APIs
if the activated history entry was created by a call to history.pushstate(), or was affected by a call to history.replacestate(), the popstate event's state property contains a copy of the history entry's state object. note: calling history.pushstate() or history.replacestate() won't trigger a popstate event. ...
...tate event's state property contains a copy of the history entry's state object. note: calling history.pushstate() or history.replacestate() won't trigger a popstate event. the popstate event is only triggered by performing a browser action, such as clicking on the back button (or calling history.back() in javascript), when navigating between two history entries for the same document. ...
...is only triggered by performing a browser action, such as clicking on the back button (or calling history.back() in javascript), when navigating between two history entries for the same document. syntax window.onpopstate = funcref; funcref is a handler function. ...

WindowOrWorkerGlobalScope.clearTimeout() - Web APIs
syntax scope.cleartimeout(timeoutid) parameters timeoutid the identifier of the timeout you want to cancel. this id was returned by the corresponding call to settimeout(). it's worth noting that the pool of ids used by settimeout() and setinterval() are shared, which means you can technically use cleartimeout() and clearinterval() interchangeably. however, for clarity, you should avoid doing so. example run the script below in the context of a web page and click on the page once. you'll see a message popping up in a second. if you click the page multiple times in one second, the alert only appears once. ...
...e context of a web page and click on the page once. you'll see a message popping up in a second. if you click the page multiple times in one second, the alert only appears once. var alarm = { remind: function(amessage) { alert(amessage); this.timeoutid = undefined; }, setup: function() { if (typeof this.timeoutid === 'number') { this.cancel(); } this.timeoutid = window.settimeout(function(msg) { this.remind(msg); }.bind(this), 1000, 'wake up!'); }, cancel: function() { window.cleartimeout(this.timeoutid); } }; window.onclick = function() { alarm.setup(); }; notes passing an invalid id to cleartimeout() silently does nothing; no exception is thrown. specifications specification status comment html living stan...
...g) { this.remind(msg); }.bind(this), 1000, 'wake up!'); }, cancel: function() { window.cleartimeout(this.timeoutid); } }; window.onclick = function() { alarm.setup(); }; notes passing an invalid id to cleartimeout() silently does nothing; no exception is thrown. specifications specification status comment html living standardthe definition of 'windoworworkerglobalscope.cleartimeout()' in that specification. living standard method moved to the windoworworkerglobalscope mixin in the latest spec. html living standardthe definition of 'cleartimeout()' in that specification. living standard ...

WindowOrWorkerGlobalScope.queueMicrotask() - Web APIs
the microtask is a short function which will run after the current task has completed its work and when there is no other code waiting to be run before control of the execution context is returned to the browser's event loop. this lets your code run without interfering with any other, potentially higher priority, code that is pending, but before the browser regains control over the execution context, potentially depending on work you need to complete. you can learn more about how to use microtasks and why you might choose to do so in our microtask guide. ...
...ight choose to do so in our microtask guide. the importance of microtasks comes in its ability to perform tasks asynchronously but in a specific order. see using microtasks in javascript with queuemicrotask() for more details. microtasks are especially useful for libraries and frameworks that need to perform final cleanup or other just-before-rendering tasks. queuemicrotask() is exposed on the windoworworkerglobalscope mixin. syntax scope.queuemicrotask(function); parameters function a function to be executed when the browser engine determines it is safe to call your code. enqueued microtasks are executed after all pending tasks have completed but before yielding control to the browser's event loop. return value undefined. examples self.queuemicrotask(() => { // function conten...
... }); } else { fetch(url).then(res => res.arraybuffer()).then(data => { this._cache[url] = data; this._setdata(data); this.dispatchevent(new event("load")); }); } }; when queuemicrotask() isn't available the code below is basically a monkey-patch for queuemicrotask() for modern engines. it creates a microtask by using a promise that resolves immediately. if (typeof window.queuemicrotask !== "function") { window.queuemicrotask = function (callback) { promise.resolve() .then(callback) .catch(e => settimeout(() => { throw e; })); // report exceptions }; } specifications specification status comment html living standardthe definition of 'self.queuemicrotask()' in that specification. living standard initial definitio...

HostWindow - Archive of obsolete content
when the sidebar is displayed, the splitter can be used to change the width or quickly collapse it. the splitter itself cannot be hidden as it is the only ui to show a collapsed sidebar. when not displayed the entire sidebar area, including the splitter are hidden. ...
...when the sidebar is displayed, the splitter can be used to change the width or quickly collapse it. the splitter itself cannot be hidden as it is the only ui to show a collapsed sidebar. when not displayed the entire sidebar area, including the splitter are hidden. ...

Running Windows Debug Builds Downloaded From Tinderbox - Archive of obsolete content
no other packages are necessary. if you are a mozilla employee or contractor, click for more instructions. ...
...ug builds you will often get "this application has failed to start because the application configuration is incorrect..." this is because the debug builds need the msvc80 crt debug dlls. you can see this by looking in at firefox.exe with http://www.dependencywalker.com/. unfortunately these dlls are not redistributable. to get these dlls you only have to install the visual c++ compilers from the windows vista sdk. no other packages are necessary. if you are a mozilla employee or contractor, click for more instructions. to run tests of the tests package you can, for example, run the reftests as follows: python reftest/runreftest.py --appname=firefox/firefox.exe --utility-path=bin --extra-profile-file=bin/plugins reftest/tests/layout/reftests/reftest.list ...

windowsGetShortName - Archive of obsolete content
summary returns a path that conforms to the windows 8.3 file naming convention. method of file object syntax string windowsgetshortname( object localdirspec ) parameters the windowsregisterserver method has the following parameter: localdirspec a filespecobject representing a directory obtained by getcomponentfolder or getfolder. returns a string with the windows shortname. if the path already conforms to 8.3, the return value is null. ...
...pec ) parameters the windowsregisterserver method has the following parameter: localdirspec a filespecobject representing a directory obtained by getcomponentfolder or getfolder. returns a string with the windows shortname. if the path already conforms to 8.3, the return value is null. ...

windowsRegisterServer - Archive of obsolete content
summary windowsregisterserver registers installed dlls with the windows registry. method of file object syntax int windowsregisterserver( object localdirspec ) parameters the windowsregisterserver method has the following parameters: localdirspec a filespecobject representing a directory obtained by getcomponentfolder or getfolder. returns an integer error code. for a list of possible values, see return codes. ...
...indowsregisterserver( object localdirspec ) parameters the windowsregisterserver method has the following parameters: localdirspec a filespecobject representing a directory obtained by getcomponentfolder or getfolder. returns an integer error code. for a list of possible values, see return codes. ...

toolkit.singletonWindowType - Archive of obsolete content
preference type: string specified by: default prefs of xulrunner applications default: none example: pref("toolkit.singletonwindowtype", "xulmine"); by default, the toolkit.defaultchromeuri preference will cause xulrunner to open a new main application window each time an application is invoked. the toolkit.singletonwindowtype preference causes xulrunner to search for a window with the attribute windowtype as specified in this preference (e.g. <window windowtype="xulmine"> in our example). if such a window is found, it will be re-used, otherwise a new window will be opened. ...
...tion is invoked. the toolkit.singletonwindowtype preference causes xulrunner to search for a window with the attribute windowtype as specified in this preference (e.g. <window windowtype="xulmine"> in our example). if such a window is found, it will be re-used, otherwise a new window will be opened. more information on this can be found in bug 317811. ...

-moz-windows-accent-color-in-titlebar - Archive of obsolete content
note: since firefox 58, this media feature is no longer available to web content — it is only available internally (e.g. to xul / chrome code). see bug 1396066 for more details. the -moz-windows-accent-color-in-titlebar gecko-only css media feature can be used to apply styles based on whether accent colors are enabled in microsoft windows titlebars. syntax <integer> in recent windows versions (e.g., 10), if accent colors are enabled in window titlebars, this is 1. otherwise it's 0. ...
...details. the -moz-windows-accent-color-in-titlebar gecko-only css media feature can be used to apply styles based on whether accent colors are enabled in microsoft windows titlebars. syntax <integer> in recent windows versions (e.g., 10), if accent colors are enabled in window titlebars, this is 1. otherwise it's 0. ...

Window.importDialog() - Archive of obsolete content
ture. obsoletethis feature is obsolete. although it may still work in some browsers, its use is discouraged since it could be removed at any time. try to avoid using it. this function was only available in the original, xul-based version of firefox for android, which is no longer supported; for that reason, this function is obsolete and should never be used. summary because opening windows on mobile isn't necessarily appropriate, the firefox mobile team designed the importdialog() method to replace window.opendialog(). instead of opening a new window, it merges the specified xul dialog into the main window. syntax newdialog = importdialog(aparent, asrc, aarguments) newdialog the opened window aparent the dialog's parent; can be null. asrc the chrome url of the xul dialo...
...portdialog(aparent, asrc, aarguments) newdialog the opened window aparent the dialog's parent; can be null. asrc the chrome url of the xul dialog. aarguments a javascript object containing data to pass to the dialog. example var dialog = importdialog(null, "chrome://myextension/content/dialog.xul", myobject); notes the xul passed to importdialog() is very similar to xul passed to window.opendialog(), with some limitations and caveats: only <dialog> top level elements are permitted. scripts are loaded via an attribute on the <dialog> element, not via the <script> tag. the xul is merged into the existing window, almost like a xul overlay. because of this, element id and javascript conflicts are possible, just like overlays. so be careful. specification this is not part of ...

Window: devicelight event - Archive of obsolete content
the devicelight event is fired when fresh data is available from a light sensor. note: this event has been disabled by default in firefox 62, behind the device.sensors.ambientlight.enabled preference (bug 1462308). ...
... property type description value read only double (float) the sensor data for ambient light in lux. min read only double (float) the minimum value in the range the sensor detects (if available, 0 otherwise). max read only double (float) the maximum value in the range the sensor detects (if available, 0 otherwise). examples window.addeventlistener('devicelight', function(event) { console.log(event.value); }); specifications specification status comment ambient light sensorthe definition of 'ambient light events' in that specification. candidate recommendation removed from specification ...

-moz-window-dragging
the -moz-window-dragging css property specifies whether a window is draggable or not. it only works in chrome code, and only on mac os x. the property was added in firefox 35 to solve intermittent problems related to firefox windows not being moveable when busy (bug 944836). initial value drag applies to all elements that create native windows, e.g. <window>, <panel> inherited no media visual computed value as specified animation type discrete canonical order the unique non-ambiguous order defined by the formal grammar syntax the -moz-window-dragging property is specified as one of the keyword values listed below. values drag the window is draggable. ...
....g. <window>, <panel> inherited no media visual computed value as specified animation type discrete canonical order the unique non-ambiguous order defined by the formal grammar syntax the -moz-window-dragging property is specified as one of the keyword values listed below. values drag the window is draggable. no-drag the window is not draggable formal syntax drag | no-drag example toolbarpaletteitem { -moz-window-dragging: no-drag; } specifications this property is not part of any specification. ...

Profiling with the Gecko Profiler and Local Symbols on Windows
in the past you had to need to run mach buildsymbols manually, but this is no longer needed. the profiler automatically reads symbols from the pdb files that are generated during the build process. you probably need a 64 bit build of firefox for this to work, though. it looks like we consume too much memory when creating the symbol table for this to work in 32 bit firefox builds. unfortunately, 32 bit is still the default when building firefox locally. ...
...32 bit firefox builds. unfortunately, 32 bit is still the default when building firefox locally. you need to add the lines ac_add_options --target=x86_64-pc-mingw32 and ac_add_options --host=x86_64-pc-mingw32 to your mozconfig in order to build a 64 bit build of firefox. profiling local talos runs if you would like to use the gecko profiler with a local talos run of a local build of firefox for windows, you will need to point talos to a zipfile containing breakpad-style symbols for your build. follow the steps below: note: you only need to do this if you're on windows and you've built firefox yourself. for any official release of firefox (nightly, beta, etc), you do not need to use these steps. make sure you don't have ac_add_options --disable-crashreporter in your firefox .mozconfig file.

nsIDOMStorageWindow
attributes attribute type description globalstorage nsidomstoragelist global storage, accessible by domain. read only. localstorage nsidomstorage local storage for the current browsing context. ...
... attributes attribute type description globalstorage nsidomstoragelist global storage, accessible by domain. read only. localstorage nsidomstorage local storage for the current browsing context. ...

nsIMsgWindowCommands
this could be as a result of clicking on a new mail alert, or by clicking a link to a newsgroup. void selectfolder( in acstring folderuri ); parameters folderuri the uri of the folder to select. ...
...news message list. inherits from: nsisupports last changed in gecko 1.9 (firefox 3) the javascript implementation of this used by thunderbird is given here. method overview void selectfolder(in acstring folderuri); void selectmessage(in acstring messageuri); void clearmsgpane(); methods selectfolder() this method is called by the backend to change the folder displayed in the message window. this could be as a result of clicking on a new mail alert, or by clicking a link to a newsgroup. void selectfolder( in acstring folderuri ); parameters folderuri the uri of the folder to select. selectmessage() this method is called by the backend to change the displayed message. for instance, when deleting attachments, this causes the message to be redisplayed. void selectmessage( in acs...

nsIWindowCreator
embedding/base/nsiwindowcreator.idlscriptable a callback interface used by gecko to create new browser windows. the application, either mozilla or an embedding app, must provide an implementation of the window watcher component and notify the windowwatcher during application initialization. inherits from: nsisupports last changed in gecko 0.9.6 method overview nsiwebbrowserchrome createchromewindow(in nsiwebbrowserchrome parent, in pruint32 chromeflags); methods createchromewindow() create a new window. gecko will/may call this method, if made available to it, to create new windows. nsiwebbrowserchrome createchromewindow( in nsiwebbrowserchrome parent, in pruint32 chromeflags ); parameters parent the nsiwebbrowserchrome of the parent window, if any. null if no parent ...
...owserchrome parent, in pruint32 chromeflags); methods createchromewindow() create a new window. gecko will/may call this method, if made available to it, to create new windows. nsiwebbrowserchrome createchromewindow( in nsiwebbrowserchrome parent, in pruint32 chromeflags ); parameters parent the nsiwebbrowserchrome of the parent window, if any. null if no parent exists. the newly created window should be made a child/dependent window of the parent, if any (and if the concept applies to the underlying os). chromeflags chrome features from nsiwebbrowserchrome. return value an nsiwebbrowserchrome for the new window. see also nsiwindowwatcher for more details. ...

nsIXULBrowserWindow
xpfe/appshell/public/nsixulbrowserwindow.idlscriptable provides methods that may be called from the internals of the browser area to tell the containing xul window to update its user interface. inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) the xulbrowserwindow attribute exists on the nsixulwindow interface although both firefox and seamonkey also store their nsixulbrowserwindow reference in the global xulbrowserwindow object accessible from javascript code. note: the xulbrowserwindow object offered to javascript code provides a great many more methods and attributes than those listed here, which are only the ones available to c++ code. see the documentation for xulbrowserwindow for details. method overview astring onbeforelin...
...inkuri, in nsidomnode linknode, in prbool isapptab); void setjsdefaultstatus(in astring status); void setjsstatus(in astring status); void setoverlink(in astring link, in nsidomelement element); methods onbeforelinktraversal() called before traversing a link to determine the appropriate target into which to load the link. this may be used, for example, to redirect links into new tabs or windows when it's not desirable to replace the content in the current tab (such as when the link is clicked in an app tab). astring onbeforelinktraversal( in astring originaltarget, in nsiuri linkuri, in nsidomnode linknode, in prbool isapptab ); parameters originaltarget the specified target for the link. linkuri the uri of the link that is about to be traversed. linknode the nsidomnode repre...

Access Thunderbird Window Areas
to access particular parts of the thunderbird window you can use these helper methods. an alternative to these methods is to directly access the element by it's id as in the detect when a folder opens example. ...
...elper methods. ...

Access Window
the window object represents the window of the thunderbird application as well as the currently opened tabs. you can do many things with the window object, such as accessing the height or width of the window/tab or setting its title, registering timer events and much more. the window api will give you the complete details. since window is a global variable you can use it directly from your javascript file. check if the window is a tab or the root window window.addeventlistener("load", function(e) { alert("is root?: " + isroot()); }, false); function isroot() { if(window != window.top) return "false"; else return "true"; } the example above tells you if the window object is a reference of the application window or of one of it is a tabs. ...
...ectly from your javascript file. check if the window is a tab or the root window window.addeventlistener("load", function(e) { alert("is root?: " + isroot()); }, false); function isroot() { if(window != window.top) return "false"; else return "true"; } the example above tells you if the window object is a reference of the application window or of one of it is a tabs. register a timer window.setinterval( function() { alert('foobar'); }, 60000); //execute the function once very minute if you periodically need to perform a certain action then you can use the setinterval function, it will then call this function every x milliseconds, in this case every 60000ms or one minute. ...

Window: DOMContentLoaded event - Web APIs
en completely loaded and parsed, without waiting for stylesheets, images, and subframes to finish loading. bubbles yes cancelable yes (although specified as a simple event that isn't cancelable) interface event event handler property none the original target for this event is the document that has loaded. ...
...nt that has loaded. you can listen for this event on the window interface to handle it in the capture or bubbling phases. for full details on this event please see the page on the document: domcontentloaded event. a different event, load, should be used only to detect a fully-loaded page. it is a common mistake to use load where domcontentloaded would be more appropriate. ...

Window: afterprint event - Web APIs
the afterprint event is fired after the associated document has started printing or the print preview has been closed. ...
... fired after the associated document has started printing or the print preview has been closed. ...

Window.alert() - Web APIs
the window.alert() method displays an alert dialog with the optional specified content and an ok button. syntax window.alert(message); parameters message optional a string you want to display in the alert dialog, or, alternatively, an object that is converted into a string and displayed. example window.alert("hello world!"); alert("hello world!"); both produce: notes the alert dialog should be used for messages which do not require any response on the part of the user, other than the acknowledgement of the message. the following text is shared between this article, dom:window.prompt and dom:window.confirm dialog boxes are modal windows - they prevent the user from accessing the rest of the program's interface until the dialog box is closed. for this reason, you should not overus...
...esponse on the part of the user, other than the acknowledgement of the message. the following text is shared between this article, dom:window.prompt and dom:window.confirm dialog boxes are modal windows - they prevent the user from accessing the rest of the program's interface until the dialog box is closed. for this reason, you should not overuse any function that creates a dialog box (or modal window). specification specification status comment html living standardthe definition of 'alert()' in that specification. living standard ...

Window: animationcancel event - Web APIs
moved, or when the animating node is hidden using css. therefore, either directly or because any of its containing nodes are hidden. bubbles yes cancelable no interface animationevent event handler property onanimationcancel the original target for this event is the element that had the animation applied. ...
...ent event handler property onanimationcancel the original target for this event is the element that had the animation applied. you can listen for this event on the window interface to handle it in the capture or bubbling phases. for full details on this event please see the page on htmlelement: animationcancel. examples this code adds a listener to the animationcancel event. window.addeventlistener('animationcancel', () => { console.log('animation canceled'); }); the same, but using the onanimationcancel property instead of addeventlistener(): window.onanimationcancel = () => { console.log('animation canceled'); }; see a live example of this event. specifications specification status comment css animations working draft initial def...

Window: animationend event - Web APIs
tion, such as if the element is removed from the dom or the animation is removed from the element, the animationend event is not fired. bubbles yes cancelable no interface animationevent event handler property onanimationend the original target for this event is the element that had the animation applied. ...
... animationevent event handler property onanimationend the original target for this event is the element that had the animation applied. you can listen for this event on the window interface to handle it in the capture or bubbling phases. for full details on this event please see the page on htmlelement: animationend. examples this example listens for the animationend event: window.addeventlistener('animationend', () => { console.log('animation ended'); }); the same, but using the onanimationend event handler property: window.onanimationend = () => { console.log('animation ended'); }; see a live example of this event. specifications specification status comment css animations working draft initial definition ...

Window: animationiteration event - Web APIs
at the same time as the animationend event, and therefore does not occur for animations with an animation-iteration-count of one. bubbles yes cancelable no interface animationevent event handler property onanimationiteration the original target for this event is the element that had the animation applied. ...
... target for this event is the element that had the animation applied. you can listen for this event on the window interface to handle it in the capture or bubbling phases. for full details on this event please see the page on htmlelement: animationiteration. examples this code uses animationiteration to keep track of the number of iterations an animation has completed: let iterationcount = 0; window.addeventlistener('animationiteration', () => { iterationcount++; console.log(`animation iteration count: ${iterationcount}`); }); the same, but using the onanimationiteration event handler property: let iterationcount = 0; window.onanimationiteration = () => { iterationcount++; console.log(`animation iteration count: ${iterationcount}`); }; see a live example of this event. specifica...

Window: animationstart event - Web APIs
ual to the absolute value of the delay (and, correspondingly, the animation will begin playing at that time index into the sequence). bubbles yes cancelable no interface animationevent event handler property onanimationstart the original target for this event is the element that had the animation applied. ...
...ndler property onanimationstart the original target for this event is the element that had the animation applied. you can listen for this event on the window interface to handle it in the capture or bubbling phases. for full details on this event please see the page on htmlelement: animationstart. examples this listens for the animationstart event and logs a message when it is fired: window.addeventlistener('animationstart', () => { console.log('animation started'); }); the same, but using onanimationstart: window.onanimationstart = () => { console.log('animation started'); }; see a live example of this event. specifications specification status comment css animations working draft initial definition ...

Window: appinstalled event - Web APIs
the appinstalled event of the web manifest api is fired when the browser has successfully installed a page as an application. ...
...nstalled a page as an application. ...

Window.applicationCache - Web APIs
specification html 5wd ...
... specification html 5wd ...

Window: beforeprint event - Web APIs
the beforeprint event is fired when the associated document is about to be printed or previewed for printing. ...
...ent is fired when the associated document is about to be printed or previewed for printing. ...

Window.clearImmediate() - Web APIs
examples let immediateid = setimmediate(() => { // run some code } document.getelementbyid("button") .addeventlistener(() => { clearimmediate(immediateid); }); specifications specification status comment efficient script yielding the definition of 'setimmediate' in that specification. ...
... examples let immediateid = setimmediate(() => { // run some code } document.getelementbyid("button") .addeventlistener(() => { clearimmediate(immediateid); }); specifications specification status comment efficient script yielding the definition of 'setimmediate' in that specification. ...

Window.confirm() - Web APIs
the window.confirm() method displays a modal dialog with an optional message and two buttons: ok and cancel. syntax result = window.confirm(message); parameters message a string you want to display in the alert dialog. return value a boolean indicating whether ok (true) or cancel (false) was selected. if a browser is ignoring in-page dialogs, then the returned value is always false. example if (window.confirm("do you really want to leave?")) { window.open("exit.html", "thanks for visiting!"); } produces: notes the following text is shared between this article, dom:window.prompt and dom:window.alert dialog boxes are modal windows — they prevent the user from accessing the rest of the program's interface until the dialog box is closed. for this reason, you should not over...
...regardless, there are good reasons to avoid using dialog boxes for confirmation. specification specification status comment html living standardthe definition of 'confirm()' in that specification. ...

Window.convertPointFromNodeToPage() - Web APIs
nodepoint a point object describing a point in node's coordinate system; this point will be converted to the page's coordinate system. ...
... nodepoint a point object describing a point in node's coordinate system; this point will be converted to the page's coordinate system. ...

Window.convertPointFromPageToNode - Web APIs
pagepoint a point object specifying a point in the coordinate system of the page, which is to be converted into the node's coordinate system. ...
... pagepoint a point object specifying a point in the coordinate system of the page, which is to be converted into the node's coordinate system. ...

Window: copy event - Web APIs
the copy event fires when the user initiates a copy action through the browser's user interface. bubbles yes cancelable yes interface clipboardevent event handler property oncopy the original target for this event is the element that was the intended target of the copy action. ...
... cancelable yes interface clipboardevent event handler property oncopy the original target for this event is the element that was the intended target of the copy action. you can listen for this event on the window interface to handle it in the capture or bubbling phases. ...

Window: cut event - Web APIs
the cut event is fired when the user has initiated a "cut" action through the browser's user interface. bubbles yes cancelable yes interface clipboardevent event handler property oncut the original target for this event is the element that was the intended target of the cut action. ...
... cancelable yes interface clipboardevent event handler property oncut the original target for this event is the element that was the intended target of the cut action. you can listen for this event on the window interface to handle it in the capture or bubbling phases. ...

Window: devicemotion event - Web APIs
the devicemotion event is fired at a regular interval and indicates the amount of physical force of acceleration the device is receiving at that time. it also provides information about the rate of rotation, if available. ...
..., if available. bubbles no cancelable no interface devicemotionevent event handler property window.ondevicemotion examples function handlemotionevent(event) { var x = event.accelerationincludinggravity.x; var y = event.accelerationincludinggravity.y; var z = event.accelerationincludinggravity.z; // do something awesome. } window.addeventlistener("devicemotion", handlemotionevent, true); specifications specification status deviceorientation event specificationthe definition of 'devicemotion event' in that specification. editor's draft ...

Window.dialogArguments - Web APIs
the dialogarguments property returns the parameters that were passed into the window.showmodaldialog() method. ...
... the dialogarguments property returns the parameters that were passed into the window.showmodaldialog() method. ...

Window: error event - Web APIs
bubbles no cancelable no interface event or uievent event handler property onerror the event object is a uievent instance if it was generated from a user interface element, or an event instance otherwise. ...
...rid-template-areas: "control log"; } .controls { grid-area: control; display: flex; align-items: center; justify-content: center; } .event-log { grid-area: log; } .event-log-contents { resize: none; } label, button { display: block; } button { height: 2rem; margin: .5rem; } img { width: 0; height: 0; } js const log = document.queryselector('.event-log-contents'); window.addeventlistener('error', (event) => { log.textcontent = log.textcontent + `${event.type}: ${event.message}\n`; console.log(event) }); const scripterror = document.queryselector('#script-error'); scripterror.addeventlistener('click', () => { const badcode = 'const s;'; eval(badcode); }); result specifications specification status ui events workin...

Window.frameElement - Web APIs
the window.frameelement property returns the element (such as <iframe> or <object>) in which the window is embedded. note: despite this property's name, it works for documents embedded within any embedding point, including <object>, <iframe>, or <embed>. syntax const frameel = window.frameelement value the element which the window is embedded into. if the window isn't embedded into another document, or if the document into which it's embedded has a different origin, the value is null instead. ...
... this property's name, it works for documents embedded within any embedding point, including <object>, <iframe>, or <embed>. syntax const frameel = window.frameelement value the element which the window is embedded into. if the window isn't embedded into another document, or if the document into which it's embedded has a different origin, the value is null instead. example const frameel = window.frameelement; // if we're embedded, change the containing element's url to 'http://mozilla.org/' if (frameel) { frameel.src = 'http://mozilla.org/'; } specifications specification status comment html living standardthe definition of 'window.frameelement' in that specification. candidate recommendation initial specification. ...

Window.fullScreen - Web APIs
the fullscreen property of the window interface indicates whether the window is displayed in full screen mode or not. syntax isinfullscreen = windowref.fullscreen; with chrome privileges, the property is read-write, otherwise it is read-only. bear in mind that if you try to set this property without chrome privileges, it will not throw an exception and instead just silently fail. this is to prevent scripts designed to set this property in internet explorer from breaking. return value isinfullscreen a boolean. possible values: true: the window is in full screen mode. false: the window is not in full screen mode. notes switching between regular window and full screen will fire the "resize" event on the corresponding window. ...
... just silently fail. this is to prevent scripts designed to set this property in internet explorer from breaking. return value isinfullscreen a boolean. possible values: true: the window is in full screen mode. false: the window is not in full screen mode. ...

Window: hashchange event - Web APIs
the hashchange event is fired when the fragment identifier of the url has changed (the part of the url beginning with and following the # symbol). ...
... living standard initial definition ...

Window.moveBy() - Web APIs
the moveby() method of the window interface moves the current window by a specified amount. note: this function moves the window relative to its current location. in contrast, window.moveto() moves the window to an absolute location. syntax window.moveby(deltax, deltay) parameters deltax is the amount of pixels to move the window horizontally. positive values are to the right, while negative values are to the left. deltay is the amount of pixels to move the window vertically. positive values are down, while negative values are up. example this example moves the window 10 pixels to the right and 10 pixels up. ...
...ative values are to the left. deltay is the amount of pixels to move the window vertically. positive values are down, while negative values are up. example this example moves the window 10 pixels to the right and 10 pixels up. function budge() { moveby(10, -10); } specification specification status comment css object model (cssom) view modulethe definition of 'window.moveby()' in that specification. working draft ...

Window.mozAnimationStartTime - Web APIs
is obsolete. although it may still work in some browsers, its use is discouraged since it could be removed at any time. try to avoid using it. returns the time, in milliseconds since the epoch, at which animations started now should be considered to have started. ...
...started. this value should be used instead of, for example, date.now(), because this value will be the same for all animations started in this window during this refresh interval, allowing them to remain in sync with one another. this also allows javascript-based animations to remain synchronized with css transitions and smil animations triggered during the same refresh interval. syntax time = window.mozanimationstarttime; parameters time is the time in milliseconds since the epoch at which animations for the current window should be considered to have started. ...

Window.onappinstalled - Web APIs
the onappinstalled attribute of the window object serves as an event handler for the appinstalled event, which is dispatched once the web application is successfully installed as a progressive web app. the event that is fired is a "simple event" that implements the event interface. syntax window.onappinstalled = function(event) { ... ...
... the onappinstalled attribute of the window object serves as an event handler for the appinstalled event, which is dispatched once the web application is successfully installed as a progressive web app. the event that is fired is a "simple event" that implements the event interface. syntax window.onappinstalled = function(event) { ... ...

Window.onbeforeinstallprompt - Web APIs
the window.onbeforeinstallprompt property is an event handler for processing a beforeinstallprompt, which is dispatched on devices when a user is about to be prompted to "install" a web application. its associated event may be saved for later and used to prompt the user at a more suitable time. syntax window.addeventlistener("beforeinstallprompt", function(event) { ... }); window.onbeforeinstallprompt = function(event) { ...}; example the following example uses the beforeinstallprompt event to make an install button operable, by using the event inside a click handler. ...
... web application. its associated event may be saved for later and used to prompt the user at a more suitable time. syntax window.addeventlistener("beforeinstallprompt", function(event) { ... }); window.onbeforeinstallprompt = function(event) { ...}; example the following example uses the beforeinstallprompt event to make an install button operable, by using the event inside a click handler. ...

Window: online event - Web APIs
the online event of the window interface is fired when the browser has gained access to the network and the value of navigator.online switches to true. note: this event shouldn't be used to determine the availability of a particular website. network problems or firewalls might still prevent the website from being reached. ...
...rk and the value of navigator.online switches to true. note: this event shouldn't be used to determine the availability of a particular website. network problems or firewalls might still prevent the website from being reached. bubbles no cancelable no interface event event handler property ononline examples // addeventlistener version window.addeventlistener('online', (event) => { console.log("you are now connected to the network."); }); // ononline version window.ononline = (event) => { console.log("you are now connected to the network."); }; specifications specification status html living standardthe definition of 'online event' in that specification. living standard ...

Window.onmozbeforepaint - Web APIs
obsolete since gecko 11 (firefox 11 / thunderbird 11 / seamonkey 2.8)this feature is obsolete. although it may still work in some browsers, its use is discouraged since it could be removed at any time. try to avoid using it. summary an event handler for the mozbeforepaint event. this is used in concert with the window.mozrequestanimationframe() method to perform smooth, synchronized animations from javascript code. syntax window.onmozbeforepaint = funcref; funcref is the handler function. example see window.mozrequestanimationframe() for an example. notes this event fires immediately before the browser window is repainted, if the event has been requested by one or more scripts calling window.mozrequestanimationframe(). the event handler receives as an input parameter an event whos...
...ately before the browser window is repainted, if the event has been requested by one or more scripts calling window.mozrequestanimationframe(). the event handler receives as an input parameter an event whose timestamp property is the time, in milliseconds since epoch, that is the "current time" for the current animation frame. this time is the same for all animations being run in the same browser window, including those using the window.mozrequestanimationframe() method, css transitions, and smil animations. specification not part of a specification. ...

Window.onuserproximity - Web APIs
the window.onuserproxymity property represents an eventhandler, that is a function to be called when the userproximity event occurs. these events are of type userproximityevent and occur when the the device sensor detects that an object becomes nearby. ...
... the window.onuserproxymity property represents an eventhandler, that is a function to be called when the userproximity event occurs. these events are of type userproximityevent and occur when the the device sensor detects that an object becomes nearby. ...

Window: orientationchange event - Web APIs
the orientationchange event is fired when the orientation of the device has changed. ...
... living standard ...

Window: pageshow event - Web APIs
bubbles no cancelable no interface pagetransitionevent event handler property onpageshow examples this example sets up event handlers for events listed in the array events. ...
...try loading new pages into this tab, then navigating forward and backward through history, noting the events’ output to the log.</p> results specifications specification status comment html living standardthe definition of 'pageshow...

Window: paste event - Web APIs
the paste event is fired when the user has initiated a "paste" action through the browser's user interface. bubbles yes cancelable yes interface clipboardevent event handler property onpaste the original target for this event is the element that was the intended target of the paste action. ...
... cancelable yes interface clipboardevent event handler property onpaste the original target for this event is the element that was the intended target of the paste action. you can listen for this event on the window interface to handle it in the capture or bubbling phases. ...

Window: rejectionhandled event - Web APIs
the rejectionhandled event is sent to the script's global scope (usually window but also worker) whenever a javascript promise is rejected but after the promise rejection has been handled. this can be used in debugging and for general application resiliency, in tandem with the unhandledrejection event, which is sent when a promise is rejected but there is no hander for the rejection. ...
...ejection event, which is sent when a promise is rejected but there is no hander for the rejection. bubbles no cancelable no interface promiserejectionevent event handler property onrejectionhandled example you can use the rejectionhandled event to log promises that get rejected to the console, along with the reasons why they were rejected: window.addeventlistener("rejectionhandled", event => { console.log("promise rejected; reason: " + event.reason); }, false); specifications specification status comment html living standardthe definition of 'rejectionhandled' in that specification. living standard initial definition. ...

Window.requestFileSystem() - Web APIs
the non-standard window method requestfilesystem() method is a google chrome-specific method which lets a web site or app gain access to a sandboxed file system for its own use. the returned filesystem is then available for use with the other file system apis. even compared to the rest of the file and directory entries api, requestfilesystem() is especially non-standard; only chrome implements it, and all other browser makers have decided that they will not implement it. it has even been removed from the proposed specification. do not use this method! syntax this method is prefixed with webkit in all browsers that implement it (that is, google chrome). window.requestfilesystem(type, size, successcallback[, errorcallback]); parameters type the type of storage to request. specify w...
...persistent storage requires that the user grant the site quota. size the amount of storage space you wish to have allocated for your app's use. ...

window.requestIdleCallback() - Web APIs
this enables developers to perform background and low priority work on the main event loop, without impacting latency-critical events such as animation and input response. functions are generally called in first-in-first-out order; however, callbacks which have a timeout specified may be called out-of-order if necessary in order to run them before the timeout elapses. you can call requestidlecallback() within an idle callback function to schedule another callback to take place no sooner than the next pass through the event loop. ...
...der if necessary in order to run them before the timeout elapses. you can call requestidlecallback() within an idle callback function to schedule another callback to take place no sooner than the next pass through the event loop. a timeout option is strongly recommended for required work, as otherwise it's possible multiple seconds will elapse before the callback is fired. syntax var handle = window.requestidlecallback(callback[, options]) return value an id which can be used to cancel the callback by passing it into the window.cancelidlecallback() method. parameters callback a reference to a function that should be called in the near future, when the event loop is idle. the callback function is passed an idledeadline object describing the amount of time available and whether or not t...

Window.scroll() - Web APIs
the window.scroll() method scrolls the window to a particular place in the document. syntax window.scroll(x-coord, y-coord) window.scroll(options) parameters x-coord is the pixel along the horizontal axis of the document that you want displayed in the upper left. y-coord is the pixel along the vertical axis of the document that you want displayed in the upper left. - or - options is a scrolltooptions dictionary. examples <!-- put the 100th vertical pixel at the top of the window --> <button onclick="scroll(0, 100);">click to scroll down 100 pixels</button> using options: window.scroll({ top: 100, left: 100, behavior: 'smooth' }); notes window.scrollto() is effectively the same as this method. ...
...n the upper left. - or - options is a scrolltooptions dictionary. examples <!-- put the 100th vertical pixel at the top of the window --> <button onclick="scroll(0, 100);">click to scroll down 100 pixels</button> using options: window.scroll({ top: 100, left: 100, behavior: 'smooth' }); notes window.scrollto() is effectively the same as this method. for relative scrolling, see window.scrollby(), window.scrollbylines(), and window.scrollbypages(). for scrolling elements, see element.scrolltop and element.scrollleft. specification specification status comment css object model (cssom) view modulethe definition of 'window.scroll()' in that specification. working draft initial definition. browser compatibility the compatibility table in...

Window.scrollBy() - Web APIs
the window.scrollby() method scrolls the document in the window by the given amount. syntax window.scrollby(x-coord, y-coord); window.scrollby(options) parameters x-coord is the horizontal pixel value that you want to scroll by. y-coord is the vertical pixel value that you want to scroll by. - or - options is a scrolltooptions dictionary. examples to scroll down one page: window.scrollby(0, window.innerheight); to scroll up: window.scrollby(0, -window.innerheight); using options: window.scrollby({ top: 100, left: 100, behavior: 'smooth' }); notes window.scrollby() scrolls by a particular amount, whereas window.scroll() scrolls to an absolute position in the document. see also window.scrollbylines() and window.scrollbypages(). specification specification ...
... working draft initial definition. browser compatibility the compatibility table in this page is generated from structured data. if you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. ...

Window.scrollByLines() - Web APIs
it may be a positive or negative integer. ...
...it may be a positive or negative integer. ...

Window.sessionStorage - Web APIs
the read-only sessionstorage property accesses a session storage object for the current origin. sessionstorage is similar to localstorage; the difference is that while data in localstorage doesn't expire, data in sessionstorage is cleared when the page session ends. a page session lasts as long as the browser is open, and survives over page reloads and restores. opening a page in a new tab or window creates a new session with the value of the top-level browsing context, which differs from how session cookies work. opening multiple tabs/windows with the same url creates sessionstorage for each tab/window. closing a tab/window ends the session and clears objects in sessionstorage. data stored in sessionstorage is specific to the protocol of the page. in particular, data stored by a script ...
... particular, data stored by a script on a site accessed with http (e.g., http://example.com) is put in a different sessionstorage object from the same site accessed with https (e.g., https://example.com). the keys and the values are always in the utf-16 domstring format, which uses two bytes per character. as with objects, integer keys are automatically converted to strings. syntax mystorage = window.sessionstorage; value a storage object which can be used to access the current origin's session storage space. exceptions securityerror the request violates a policy decision, or the origin is not a valid scheme/host/port tuple (this can happen if the origin uses the file: or data: scheme, for example). for example, the user may have their browser configured to deny permission to persist ...

Window: storage event - Web APIs
the storage event of the window interface fires when a storage area (localstorage) has been modified in the context of another document. bubbles no cancelable no interface storageevent event handler property onstorage examples log the samplelist item to the console when the storage event fires: window.addeventlistener('storage', () => { // when local storage changes, dump the list to // the console. console.log(json.parse(window.localstorage.getitem('samplelist'))); }); the same action can be achieved using the onstorage event handler property: window.onstorage = () => { // when local storage changes, dump the list to // the console. ...
...ge event fires: window.addeventlistener('storage', () => { // when local storage changes, dump the list to // the console. console.log(json.parse(window.localstorage.getitem('samplelist'))); }); the same action can be achieved using the onstorage event handler property: window.onstorage = () => { // when local storage changes, dump the list to // the console. console.log(json.parse(window.localstorage.getitem('samplelist'))); }; specifications specification status html living standardthe definition of 'storage' in that specification. living standard ...

Window: transitioncancel event - Web APIs
is fired when a css transition is canceled. see globaleventhandlers.ontransitioncancel for more information. bubbles yes cancelable no interface transitionevent event handler property globaleventhandlers.ontransitioncancel the original target for this event is the element that had the transition applied. ...
...er property globaleventhandlers.ontransitioncancel the original target for this event is the element that had the transition applied. you can listen for this event on the window interface to handle it in the capture or bubbling phases. for full details on this event please see the page on htmlelement: transitioncancel. examples this code adds a listener to the transitioncancel event: window.addeventlistener('transitioncancel', () => { console.log('transition canceled'); }); the same, but using the ontransitioncancel property instead of addeventlistener(): window.ontransitioncancel = () => { console.log('transition canceled'); }; see a live example of this event. specifications specification status comment css transitionsthe definition of 'transit...

Window: transitionend event - Web APIs
erts to the default or non-transitioned state. if there is no transition delay or duration, if both are 0s or neither is declared, there is no transition, and none of the transition events are fired. if the transitioncancel event is fired, the transitionend event will not fire. the original target for this event is the element that had the transition applied. ...
...tioncancel event is fired, the transitionend event will not fire. the original target for this event is the element that had the transition applied. you can listen for this event on the window interface to handle it in the capture or bubbling phases. for full details on this event please see the page on htmlelement: transitionend. examples this code adds a listener to the transitionend event: window.addeventlistener('transitionend', () => { console.log('transition ended'); }); the same, but using the ontransitionend property instead of addeventlistener(): window.ontransitionend = () => { console.log('transition ended'); }; see a live example of this event. specifications specification status comment css transitionsthe definition of 'transitionend' in that...

Window: transitionrun event - Web APIs
the transitionrun event is fired when a css transition is first created, i.e. before any transition-delay has begun. bubbles yes cancelable no interface transitionevent event handler property ontransitionrun the original target for this event is the element that had the transition applied. ...
...ionevent event handler property ontransitionrun the original target for this event is the element that had the transition applied. you can listen for this event on the window interface to handle it in the capture or bubbling phases. for full details on this event please see the page on htmlelement: transitionrun. examples this code adds a listener to the transitionrun event: window.addeventlistener('transitionrun', () => { console.log('transition is running but hasn't necessarily started transitioning yet'); }); the same, but using the ontransitionrun property instead of addeventlistener(): window.ontransitionrun = () => { console.log('transition started running'); }; see a live example of this event. specifications specification status comment ...

Window: transitionstart event - Web APIs
onstart event is fired when a css transition has actually started, i.e., after any transition-delay has ended. bubbles yes cancelable no interface transitionevent event handler property globaleventhandlers.ontransitionstart the original target for this event is the element that had the transition applied. ...
...ndler property globaleventhandlers.ontransitionstart the original target for this event is the element that had the transition applied. you can listen for this event on the window interface to handle it in the capture or bubbling phases. for full details on this event please see the page on htmlelement: transitionstart. examples this code adds a listener to the transitionstart event: window.addeventlistener('transitionstart', () => { console.log('started transitioning'); }); the same, but using the ontransitionstart property instead of addeventlistener(): window.ontransitionrun = () => { console.log('started transitioning'); }; see a live example of this event. specifications specification status comment css transitionsthe definition of 'transiti...

WindowEventHandlers.onbeforeprint - Web APIs
the onbeforeprint property of the windoweventhandlers mixin is the eventhandler for processing beforeprint events for the current window. these events are raised before the print dialog window is opened. the beforeprint and afterprint events allow pages to change their content before printing starts (perhaps to remove a banner, for example) and then revert those changes after printing has completed. in general, you should prefer the use of an @media print css at-rule, but it may be necessary to use these events in some cases. syntax window.addeventlistener("beforeprint", function(event) { ... }); window.onbeforeprint = function(event) { ... }; polyfill safari does not implement these events, but you can create an equivalent result to the beforeprint event with window.matchmedia('print'). ...
...prefer the use of an @media print css at-rule, but it may be necessary to use these events in some cases. syntax window.addeventlistener("beforeprint", function(event) { ... }); window.onbeforeprint = function(event) { ... }; polyfill safari does not implement these events, but you can create an equivalent result to the beforeprint event with window.matchmedia('print'). var mediaquerylist = window.matchmedia('print'); mediaquerylist.addlistener(function(mql) { if(mql.matches) { console.log('webkit equivalent of onbeforeprint'); } }); specification specification status comment html living standardthe definition of 'onbeforeprint' in that specification. living standard ...

WindowEventHandlers.onlanguagechange - Web APIs
the onlanguagechange property of the windoweventhandlers mixin is the eventhandler for processing languagechange events. these events are received by the object implementing this interface, usually a window, an htmlbodyelement, or an htmliframeelement. such an event is sent by the browser to inform that the preferred languages list has been updated. the list is accessible via navigatorlanguage.languages. syntax object.onlanguagechange = function; value function is the name of a user-defined function, without the () suffix or any parameters, or an anonymous function declaration, such as function(event) {...}. an event handler always has one single parameter, containing the event, here of type event. ...
...es list has been updated. the list is accessible via navigatorlanguage.languages. syntax object.onlanguagechange = function; value function is the name of a user-defined function, without the () suffix or any parameters, or an anonymous function declaration, such as function(event) {...}. an event handler always has one single parameter, containing the event, here of type event. example window.onlanguagechange = function(event) { console.log('languagechange event detected!'); }; specifications specification status comment html living standardthe definition of 'windoweventhandler.onlanguagechange' in that specification. living standard initial specification. ...

WindowOrWorkerGlobalScope.caches - Web APIs
this object enables functionality such as storing assets for offline use, and generating custom responses to requests. syntax var mycachestorage = self.caches; // or just caches value a cachestorage object. example the following example shows how you'd use a cache in a service worker context to store assets offline. ...
... service workers working draft initial definition. ...

WindowOrWorkerGlobalScope.clearInterval() - Web APIs
the clearinterval() method of the windoworworkerglobalscope mixin cancels a timed, repeating action which was previously established by a call to setinterval(). syntax scope.clearinterval(intervalid) parameters intervalid the identifier of the repeated action you want to cancel. this id was returned by the corresponding call to setinterval(). it's worth noting that the pool of ids used by setinterval() and settimeout() are shared, which means you can technically use clearinterval() and cleartimeout() interchangeably. however, for clarity, you should avoid doing so. return value undefined example see the setinterval() examples. ...
...s worth noting that the pool of ids used by setinterval() and settimeout() are shared, which means you can technically use clearinterval() and cleartimeout() interchangeably. however, for clarity, you should avoid doing so. return value undefined example see the setinterval() examples. specifications specification status comment html living standardthe definition of 'windoworworkerglobalscope.clearinterval()' in that specification. living standard method moved to the windoworworkerglobalscope mixin in the latest spec. html living standardthe definition of 'clearinterval()' in that specification. living standard ...

WindowOrWorkerGlobalScope.crossOriginIsolated - Web APIs
this value is dependant on any cross-origin-opener-policy and cross-origin-embedder-policy headers present in the response. ...
... this value is dependant on any cross-origin-opener-policy and cross-origin-embedder-policy headers present in the response. ...

WindowOrWorkerGlobalScope.indexedDB - Web APIs
the indexeddb read-only property of the windoworworkerglobalscope mixin provides a mechanism for applications to asynchronously access the capabilities of indexed databases. syntax var idbfactory = self.indexeddb; value an idbfactory object. example the following code creates a request for a database to be opened asychronously, after which the database is opened when the request's onsuccess handler is fired: var db; function opendb() { var dbopenrequest = window.indexeddb.open('todolist'); dbopenrequest.onsuccess = function(e) { db = dbopenrequest.result; } } specifications specification status comment indexed database api draftthe definition of 'indexeddb' in that specification. ...
...s opened when the request's onsuccess handler is fired: var db; function opendb() { var dbopenrequest = window.indexeddb.open('todolist'); dbopenrequest.onsuccess = function(e) { db = dbopenrequest.result; } } specifications specification status comment indexed database api draftthe definition of 'indexeddb' in that specification. recommendation defined in a windoworworkerglobalscope partial in the newest spec. indexed database api 2.0the definition of 'indexeddb' in that specification. recommendation initial definition. ...

:-moz-window-inactive - CSS: Cascading Style Sheets
the :-moz-window-inactive css pseudo-class is a mozilla extension that matches any element while it's in an inactive window. :-moz-window-inactive works in content html documents, too. note: prior to the addition of this pseudo-class, giving different styles to background windows was achieved by setting an attribute (active="true") on the top-level xul chrome window. this attribute is no longer used. syntax :-moz-window-inactive examples this example alters the appearance of a box's background depending on whether its window is active or not. ...
...you can view this as a separate page as well. ...

Window: deviceproximity event - Archive of obsolete content
the deviceproximity event is fired when fresh data is available from a proximity sensor. note: this event has been disabled by default in firefox 62, behind the device.sensors.proximity.enabled preference (bug 1462308). bubbles no cancelable no interface deviceproximityevent target defaultview (window) default action none event handler property window.ondeviceproximity specification proximity sensor other properties property type description value read only double (float) the measured proximity of the distant device (distance in centimetres). min read only double (float) the minimum value in the range the sensor detects (if available, 0 otherwise).

Window: userproximity event - Archive of obsolete content
the userproximity event is fired when fresh data is available from a proximity sensor (indicates whether the nearby object is near the device or not). bubbles no cancelable no interface userproximityevent target defaultview (window) default action none event handler property window.onuserroximity specification proximity sensor note: this event has been disabled by default in firefox 62, behind the device.sensors.proximity.enabled preference (bug 1462308). other properties property type description near read only boolean the current user proximity state. specifications specification status proximity sensorthe definition of 'proximity...

Post data to window - Archive of obsolete content
der("content-type", "application/x-www-form-urlencoded"); postdata.addcontentlength = true; postdata.setdata(stringstream); // postdata is ready to be used as apostdata argument ... posting data to the current tab there is a convenience method in global scope (in firefox, chrome://browser/content/browser.js): loaduri(auri, areferrer, apostdata, aallowthirdpartyfixup); posting data to a new window window.opendialog('chrome://browser/content', '_blank', 'all,dialog=no', auri, aflags, areferrer, apostdata); ...

prefwindow.type - Archive of obsolete content
« xul reference home type type: string set this attribute to child for preference dialogs that are child dialogs of a main preferences window. this ensures that the preferences are only saved when the main dialog is closed, if this is the appropriate behaviour for the platform. ...

centerWindowOnScreen - Archive of obsolete content
...

openWindow - Archive of obsolete content
« xul reference home openwindow( windowtype, url, features, params ) return type: window open a child window. the windowtype is a string specifying a window type. if a window with that type is already open, this method will just switch that window to the front and focus it instead of opening another window. if a window of the type is not open, a new one is opened displaying the supplied url. ...

contentWindow - Archive of obsolete content
« xul reference contentwindow type: todo use the contentwindow.wrappedjsobject to obtain a dom(html) window object ...

XULBrowserWindow - Archive of obsolete content
the xulbrowserwindow object provides methods and properties that let the browser update the user interface of the enclosing xul window. in order to do so it implements the following interfaces: nsisupports nsixulbrowserwindow nsiwebprogresslistener nsiwebprogresslistener2 nsisupportsweakreference note: this page is not complete at this time. see the linked interfaces for the definition of the implemented methods. you may also wish to refer to the implementation of xulbrowserwindow in browser/base/content/browser.js. method overview boolean hidechromeforlocation(in string alocation); attributes attribute type description incontentwhitelist string[] an array of url strings for which chrome is automatically hidden. defaults to about...

Creating a Windows Inno Setup installer for XULRunner applications - Archive of obsolete content
the tutorial here uses the my app example from the article getting started with xulrunner. step 1: installing inno setup download inno setup from inno setup downloads. if you only want to compile the installer, install the stable release. if you want to edit scripts, you should get the quickstart pack (which includes istool, the script editor. however, if you don't get the quickstart pack, you can later get istool from inno setup third-party files. ...

-moz-windows-compositor - Archive of obsolete content
otherwise it's 0. media: media/visual accepts min/max prefixes: no ...

-moz-windows-classic - Archive of obsolete content
note: since firefox 58, this media feature is no longer available to web content — it is only available internally (e.g. to xul / chrome code). see bug 1396066 for more details. syntax <integer> if the user is using windows unthemed (in classic mode instead of using uxtheme), this is 1. otherwise it's 0. media: media/visual accepts min/max prefixes: no ...

-moz-windows-default-theme - Archive of obsolete content
note: since firefox 58, this media feature is no longer available to web content — it is only available internally (e.g. to xul / chrome code). see bug 1396066 for more details. syntax <integer> if the user is using one of the default windows themes—luna, royale, zune, or aero (including vista basic, vista advanced, and aero glass)—this is 1. otherwise it's 0. media: media/visual accepts min/max prefixes: no ...

-moz-windows-glass - Archive of obsolete content
note: since firefox 58, this media feature is no longer available to web content — it is only available internally (e.g. to xul / chrome code). see bug 1396066 for more details. syntax <integer> if the user is using windows glass theme, this is 1; otherwise it's 0. note that this only exists for windows 7 and earlier. media: media/visual accepts min/max prefixes: no ...

-moz-windows-theme - Archive of obsolete content
note: since firefox 58, this media feature is no longer available to web content — it is only available internally (e.g. to xul / chrome code). see bug 1396066 for more details. the -moz-windows-theme gecko-only css media feature is useful for customizing application skins and other chrome code to work well with the user's windows theme. syntax the -moz-windows-theme feature is specified as a keyword value that indicates which windows theme is currently being used. values aero luna-blue luna-olive luna-silver royale generic zune media: media/visual accepts min/max prefixes: no ...

Multiprocess on Windows
ot thread safe. since gecko's main thread uses com, and com requires threads to declare their threading model, the main thread must initialize itself to live inside its own single threaded apartment (sta). this is true for both chrome and content processes. as you should already know from the prerequisite reading, single threaded apartments receive remote procedure calls (rpcs) from com, via the windows message queue. from a performance standpoint, this is less than ideal. the windows message queue carries a lot of baggage for the purposes of maintaining backward compatibility. on the other hand, com's multithreaded apartment (mta) uses a much faster ipc mechanism that does not suffer from the same problems as the message queue. ideally, we would like to receive rpcs via threads in the mta, and...

Building Firefox for Windows
documentation moved in-tree: https://firefox-source-docs.mozilla.org/setup/windows_build.html ...

browser.dom.window.dump.enabled
this setting enables the dump function, which sends messages to the system console. set it to true to enable it, or false to disable it. related browser.dom.window.dump.file window.dump ...

nsIDOMJSWindow
one of the interfaces implemented by the window dom object. this is only a magic interface to provide the js implementation of a dom window and it should never be used by embedders, the ordinary dom documentation should cover the rest. the interface is defined in dom/interfaces/base/nsidomjswindow.idl. page composed by sebastian gurin <sgurin@(nospam)montevideo.com.uy ...

Generating xpt on Windows
in order to generate an .xpt file from an .idl file in recent versions of the gecko \ xul runner sdk in windows, you need to use the typelib.py script. assuming you installed your xulrunner sdk at <mozsdkdir>, you then need to issue a command similar to c:\working-dir> <mozsdkdir>\sdk\bin\typelib.py <inputfile.idl> -o <outputfile.xpt> -i <mozsdkdir>\idl ...

Using MAPI with Thunderbird's Windows 7 developer builds
the thunderbird installer sets the installed build as the default mapi/mail client. if you want to set a debug build as the default mail client, you need configure it manually: in the objdir/mozilla/dist/bin directory, copy mozmapi32.dll to mozmapi32_inuse.dll and mapiproxy to mapiproxy_inuse.dll. (be sure to copy - not move - these files.) in the uninstall sub-directory of the bin directory, run these two commands: helper.exe /setasdefaultappglobal helper.exe /setasdefaultappuser create an elevated shell and register the mapi proxy.dll as a com server. ...

HTMLIFrameElement.contentWindow - Web APIs
the contentwindow property returns the window object of an htmliframeelement. you can use this window object to access the iframe's document and its internal dom. this attribute is read-only, but its properties can be manipulated like the global window object. example of contentwindow var x = document.getelementsbytagname("iframe")[0].contentwindow; //x = window.frames[0]; x.document.getelementsbytagname("body")[0].style.backgroundcolor = "blue"; // this would turn the 1st iframe in document blue. specifications specification status comment html living standardthe definition of 'htmliframeelement: contentwindow' in that specification. living standard ...

HTMLObjectElement.contentWindow - Web APIs
the contentwindow read-only property of the htmlobjectelement interface returns a windowproxy representing the window proxy of the object element's nested browsing context, if any; otherwise null. syntax var windowproxy = htmlobjectelement.contentwindow; value a windowproxy. specifications specification status comment html living standardthe definition of 'contentwindow' in that specification. living standard initial definition. ...

PaymentRequestEvent.openWindow() - Web APIs
the openwindow property of the paymentrequestevent interface opens the specified url in a new window, if and only if the given url is on the same origin as the calling page. it returns a promise that resolves with a reference to a windowclient. syntax var apromise = paymentrequestevent.openwindow(url) parameters url the url to open in the new window. it must be on the same origin as the calling page. return value a promise that resolves with a reference to a windowclient. specifications specification status comment payment handler apithe definition of 'openwindow' in that specification. working draft initial definition. ...

Window.back() - Web APIs
the obsolete and non-standard method back() on the window interface returns the window to the previous item in the history. this was a firefox-specific method and was removed in firefox 31. note: use the standard history.back method instead. syntax window.back(); parameters none. return value undefined. example this simple example handles a click on a "back" button by calling back(). function handlemybackbutton() { if (cangoback) { window.back(); } } specification this is not part of any specification. ...

Window.blur() - Web APIs
shifts focus away from the window. syntax window.blur() example window.blur(); notes the window.blur() method is the programmatic equivalent of the user shifting focus away from the current window. specification specification status comment html living standardthe definition of 'window.blur()' in that specification. living standard ...

Window: blur event - Web APIs
this document to give it focus.</p> css .paused { background: #ddd; color: #555; } javascript function pause() { document.body.classlist.add('paused'); log.textcontent = 'focus lost!'; } function play() { document.body.classlist.remove('paused'); log.textcontent = 'this document has focus. click outside the document to lose focus.'; } const log = document.getelementbyid('log'); window.addeventlistener('blur', pause); window.addeventlistener('focus', play); result specifications specification status comment ui events working draft added info that this event is composed. document object model (dom) level 3 events specification obsolete initial definition ...

window.cancelIdleCallback() - Web APIs
return value undefined. example see our complete example in the article cooperative scheduling of background tasks api. specifications specification status comment cooperative scheduling of background tasks proposed recommendation initial definition. browser compatibility the compatibility table in this page is generated from structured data. ...

Window: clipboardchange event - Web APIs
the clipboardchange event fires when the system clipboard content changes. bubbles no cancelable no interface clipboardevent event handler property none examples javascript window.addeventlistener('clipboardchange', () => { console.log('clipboard contents changed'); }); specifications specification status clipboard api and eventsthe definition of 'clipboardchange event' in that specification. working draft ...

Window.console - Web APIs
these methods are intended for debugging purposes only and should not be relied on for presenting information to end users. examples logging to console the first example logs text to the console. console.log("an error occurred while loading the content"); the next example logs an object to the console, with the object's fields expandable using disclosure widgets: console.dir(someobject); see usage in console for more thorough examples. specifications specification status comment console api living standard initial definition. ...

Window.controllers - Web APIs
the controllers property of the window interface returns the xul controllers of the chrome window. syntax controllers = window.controllers controllers is an object of type xulcontrollers (nsicontrollers). specification xul-specific. not part of specification. by default, a window's controller contains the code that supports the global window commands. chrome code can add controllers (to be used in conjunction with the godocommand and goupdatecommand functions in globaloverlay.js). however, the added controllers must be explicitly removed when the window is unloaded, as this is not done automatically. each missing removal can cause bug 415775: assertion: xpconnect is being called on a scope without a 'components' property! ...

Window.defaultStatus - Web APIs
obsolete since gecko 23 (firefox 23 / thunderbird 23 / seamonkey 2.20)this feature is obsolete. although it may still work in some browsers, its use is discouraged since it could be removed at any time. try to avoid using it. summary gets/sets the status bar text for the given window. syntax var smsg = window.defaultstatus; window.defaultstatus = smsg; parameters smsg is a string containing the text to be displayed by default in the statusbar. example <html> <body onload="window.defaultstatus='hello!';"/> <button onclick="window.confirm('are you sure you want to quit?');">confirm</button> </body> </html> notes to set the status once the window has been opened, use window.status. specification html5 ...

Window.directories - Web APIs
obsolete since gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1)this feature is obsolete. although it may still work in some browsers, its use is discouraged since it could be removed at any time. try to avoid using it. summary returned the window personalbar toolbar object. use the window.personalbar instead. syntax var dirbar = window.directories; parameters dirbar is an object of the type barprop. example <script> function dirs() { alert(window.directories); } </script> specification not part of specification. ...

Window.document - Web APIs
window.document returns a reference to the document contained in the window. example console.log(window.document.title); specifications specification status comment html living standardthe definition of 'window.document' in that specification. living standard html5the definition of 'window.document' in that specification. recommendation ...

Window.external - Web APIs
however, this is now deprecated, and the contained methods are now dummy functions that do nothing as per spec. methods the external object has the following methods: method description addsearchprovider(descriptionurl) dummy function; does nothing. see autodiscovery of search plugins. issearchproviderinstalled() dummy function; does nothing. ...

Window.focus() - Web APIs
makes a request to bring the window to the front. it may fail due to user settings and the window isn't guaranteed to be frontmost before this method returns. syntax window.focus() example if (clicked) { window.focus(); } specification specification status comment html living standardthe definition of 'window.focus()' in that specification. living standard ...

Window: focus event - Web APIs
this document to give it focus.</p> css .paused { background: #ddd; color: #555; } javascript function pause() { document.body.classlist.add('paused'); log.textcontent = 'focus lost!'; } function play() { document.body.classlist.remove('paused'); log.textcontent = 'this document has focus. click outside the document to lose focus.'; } const log = document.getelementbyid('log'); window.addeventlistener('blur', pause); window.addeventlistener('focus', play); result specifications specification status comment ui events working draft added info that this event is composed. document object model (dom) level 3 events specification obsolete initial definition ...

Window.forward() - Web APIs
moves the window one document forward in history. this was a firefox-specific method and was removed in firefox 31. note: use the standard window.history.forward() method instead. syntax window.forward(); parameters none return value undefined. example function goforward() { if (cangoforward) { window.forward(); } } specification this is not part of any specification. ...

Window: gamepadconnected event - Web APIs
the gamepadconnected event is fired when the browser detects that a gamepad has been connected or the first time a button/axis of the gamepad is used. ...

Window: gamepaddisconnected event - Web APIs
the gamepaddisconnected event is fired when the browser detects that a gamepad has been disconnected. ...

Window.history - Web APIs
see manipulating the browser history for examples and details. in particular, that article explains security features of the pushstate() and replacestate() methods that you should be aware of before using them. example history.back(); // equivalent to clicking back button history.go(-1); // equivalent to history.back(); notes for top-level pages you can see the list of pages in the session history, accessible via the history object, in the browser's dropdowns next to the back and forward buttons. ...

Window.home() - Web APIs
obsolete since gecko 31 (firefox 31 / thunderbird 31 / seamonkey 2.28)this feature is obsolete. although it may still work in some browsers, its use is discouraged since it could be removed at any time. try to avoid using it. the window.home() method returns the window to the home page. syntax window.home(); example function gohome() { window.home(); } specification dom level 0. not part of specification. ...

Window: languagechange event - Web APIs
the languagechange event is fired at the global scope object when the user's preferred language changes. bubbles no cancelable no interface event event handler onlanguagechange examples you can use the languagechange event in an addeventlistener method: window.addeventlistener('languagechange', function() { console.log('languagechange event detected!'); }); or use the onlanguagechange event handler property: window.onlanguagechange = function(event) { console.log('languagechange event detected!'); }; specification specification status html living standardthe definition of 'languagechange' in that specification. living standard ...

Window.length - Web APIs
returns the number of frames (either <frame> or <iframe> elements) in the window. syntax framescount = window.length; framescount is the number of frames. example if (window.length) { // this is a document with subframes } specifications specification status comment html living standardthe definition of 'window.length' in that specification. living standard html5the definition of 'window.length' in that specification. recommendation ...

Window.localStorage - Web APIs
in particular, data stored by a script on a site accessed with http (e.g., http://example.com) is put in a different localstorage object from the same site accessed with https (e.g., https://example.com). the keys and the values are always in the utf-16 domstring format, which uses two bytes per character. as with objects, integer keys are automatically converted to strings. syntax mystorage = window.localstorage; value a storage object which can be used to access the current origin's local storage space. exceptions securityerror the request violates a policy decision, or the origin is not a valid scheme/host/port tuple (this can happen if the origin uses the file: or data: scheme, for example). for example, the user may have their browser configured to deny permission to persist data ...

Window.locationbar - Web APIs
returns the locationbar object, whose visibility can be checked. syntax objref = window.locationbar example the following complete html example shows how the visible property of the locationbar object is used. <!doctype html> <html lang="en"> <head> <meta charset="utf-8" /> <title>various dom tests</title> <script> var visible = window.locationbar.visible; </script> </head> <body> <p>various dom tests</p> </body> </html> specifications specification status comment html living standardthe definition of 'window.locationbar' in that specification. living standard html5the definition of 'window.locationbar' in that specification. recommendation ...

Window.menubar - Web APIs
the window.menubar property returns the menubar object, whose visibility can be checked. syntax objref = window.menubar example the following complete html example demonstrates how the visible property of the menubar object is used. <html> <head> <title>various dom tests</title> <script> var visible = window.menubar.visible; </script> </head> <body> <p>various dom tests</p> </body> </html> specifications specification status comment html living standardthe definition of 'window.menubar' in that specification. living standard html5the definition of 'window.menubar' in that specification. recommendation ...

Window.minimize() - Web APIs
browser compatibility the compatibility table in this page is generated from structured data. if you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. ...

Window.moveTo() - Web APIs
the moveto() method of the window interface moves the current window to the specified coordinates. note: this function moves the window to an absolute location. in contrast, window.moveby() moves the window relative to its current location. syntax window.moveto(x, y) parameters x is the horizontal coordinate to be moved to. y is the vertical coordinate to be moved to. example this example moves the window to the top-left corner of the screen. function origin() { window.moveto(0, 0); } specification specification status comment css object model (cssom) view modulethe definition of 'window.moveto()' in that specification. working draft initial definition ...

Window.mozInnerScreenX - Web APIs
summary gets the x coordinate of the top-left corner of the window's viewport, in screen coordinates. note: this coordinate is reported in css pixels, not in hardware pixels. that means it can be affected by the zoom level; to compute the actual number of physical screen pixels, you should use the nsidomwindowutils.screenpixelspercsspixel property. syntax screenx = window.mozinnerscreenx; value screenx stores the window.mozinnerscreenx property value. the window.mozinnerscreenx property is a floating point, read-only value; it has no default value. specification not part of any w3c technical specification or recommendation. ...

Window.mozInnerScreenY - Web APIs
summary gets the y coordinate of the top-left corner of the window's viewport, in screen coordinates. note: this coordinate is reported in css pixels, not in hardware pixels. that means it can be affected by the zoom level; to compute the actual number of physical screen pixels, you should use the nsidomwindowutils.screenpixelspercsspixel property. syntax screeny = window.mozinnerscreeny; value screeny stores the window.mozinnerscreeny property value. the window.mozinnerscreeny property is a floating point, read-only value; it has no default value. specification not part of any w3c technical specification or recommendation. ...

Window.mozPaintCount - Web APIs
obsolete since gecko 72 (firefox 72 / thunderbird 72 / seamonkey 2.69)this feature is obsolete. although it may still work in some browsers, its use is discouraged since it could be removed at any time. try to avoid using it. returns the number of times the current document has been painted to the screen in this window. syntax var paintcount = window.mozpaintcount; paintcount stores the window.mozpaintcount property value. the window.mozpaintcount value is a long long, and starts at zero when the document is first created, incrementing by one each time the document is painted. specification not part of any w3c technical specification or recommendation. ...

Window: offline event - Web APIs
the offline event of the window interface is fired when the browser has lost access to the network and the value of navigator.online switches to false. bubbles no cancelable no interface event event handler property onoffline examples // addeventlistener version window.addeventlistener('offline', (event) => { console.log("the network connection has been lost."); }); // onoffline version window.onoffline = (event) => { console.log("the network connection has been lost."); }; specifications specification status html living standardthe definition of 'offline event' in that specification. living standard ...

Window.ondevicelight - Web APIs
specifies an event listener to receive devicelight events. these events occur when the device's light level sensor detects a change in the intensity of the ambient light level. syntax window.ondevicelight = funcref where funcref is a function to be called when the devicelight event occurs. these events are of type devicelightevent. ...

Window.ondevicemotion - Web APIs
this function receives a devicemotionevent object describing the motion that occurred. ...

window.ondeviceorientation - Web APIs
summary an event handler for the deviceorientation event, which contains information about a relative device orientation change. syntax window.ondeviceorientation = function(event) { ... }; window.addeventlistener('deviceorientation', function(event) { ... }); specifications specification status comment deviceorientation event specification editor's draft initial specification. ...

Window.ondeviceorientationabsolute - Web APIs
summary an event handler for the deviceorientationabsolute event containing information about an absolute device orientation change. syntax window.ondeviceorientationabsolute = function(event) { ... }; window.addeventlistener('deviceorientationabsolute', function(event) { ... }); specifications this event handler is not currently part of any specification. ...

Window.ondeviceproximity - Web APIs
the ondeviceproximity property of the window interface specifies an eventhandler to receive deviceproximity events. these events occur when the device sensor detects that an object becomes closer to or farther from the device. syntax window.onuserproximity = funcref where funcref is a function to be called when the deviceproximity event occurs. these events are of type deviceproximityevent. ...

Window.ongamepadconnected - Web APIs
the ongamepadconnected property of the window interface represents an event handler that will run when a gamepad is connected (when the gamepadconnected event fires). the event object is of type gamepadevent. syntax window.ongamepadconnected = function() { ... }; examples window.ongamepadconnected = function(event) { // all buttons and axes values can be accessed through event.gamepad; }; specifications specification status comment gamepadthe definition of 'gamepadconnected event' in that specification. working draft initial definition ...

Window.ongamepaddisconnected - Web APIs
the ongamepaddisconnected property of the window interface represents an event handler that will run when a gamepad is disconnected (when the gamepaddisconnected event fires). the event object is of type gamepadevent. syntax window.ongamepaddisconnected = function() { ... }; examples window.ongamepaddisconnected = function() { // a gamepad has been disconnected }; specifications specification status comment gamepadthe definition of 'gamepaddisconnected event' in that specification. working draft initial definition ...

Window.opener - Web APIs
the window interface's opener property returns a reference to the window that opened the window using open(). in other words, if window a opens window b, b.opener returns a. syntax const openerwindow = window.opener value a window referring to the window that opened the current window (using window.open(), or by a link with target attribute set). if this window was not opened by being linked to or created by another, returns null. in modern browsers, a rel="noopener noreferrer" attribute on the originating <a> element will prevent the window.opener reference from being set, in which case this property will return null. specifications specification status comment html living standardthe definition of 'window.opener' in that specification. living standard ...

Window.orientation - Web APIs
living standard ...

Window.outerHeight - Web APIs
the window.outerheight read-only property returns the height in pixels of the whole browser window, including any sidebar, window chrome, and window-resizing borders/handles. notes to change the size of a window, see window.resizeby() and window.resizeto(). to get the inner height of a window, i.e. the height of the page being displayed, see window.innerheight. graphical example the following figure shows the difference between outerheight and innerheight. specification specification status comment css object model (cssom) view modulethe definition of 'window.outerheight' in that specification. working draft ...

Window.pageXOffset - Web APIs
the read-only window property pagexoffset is an alias for scrollx. specification specification status comment css object model (cssom) view modulethe definition of 'window.pagexoffset' in that specification. working draft ...

Window.parent - Web APIs
the window.parent property is a reference to the parent of the current window or subframe. if a window does not have a parent, its parent property is a reference to itself. when a window is loaded in an <iframe>, <object>, or <frame>, its parent is the window with the element embedding the window. syntax var parentwindow = window.parent; example if (window.parent != window.top) { // we're deeper than one down } specifications specification status comment html living standardthe definition of 'window.parent' in that specification. living standard ...

Window.pkcs11 - Web APIs
col. if pkcs11 isn't supported, this property returns null. note: this property has been returned null since gecko 1.9.0.14 (firefox 3.0.14) and removed in gecko 29.0 (firefox 29 / thunderbird 29 / seamonkey 2.26)) for security reasons. for more information on installing pkcs11 modules, see installing pkcs11 modules. see bug 326628 for details on why the property was removed. syntax objref = window.pkcs11 example window.pkcs11.addmodule(smod, secpath, 0, 0); notes see nsidompkcs11 for more information about how to manipulate pkcs11 objects. specification not part of specification. ...

Window.print() - Web APIs
living standard browser compatibility the compatibility table in this page is generated from structured data. ...

Window.releaseEvents() - Web APIs
summary releases the window from trapping events of a specific type. syntax window.releaseevents(eventtype) eventtype is a combination of the following values: event.abort, event.blur, event.click, event.change, event.dblclick, event.dragddrop, event.error, event.focus, event.keydown, event.keypress, event.keyup, event.load, event.mousedown, event.mousemove, event.mouseout, event.mouseover, event.mouseup, event.move, event.reset, event.resize, event.select, event.submit, event.unload. example window.releaseevents(event.keypress) notes note that you can pass a list of events to this method using the following syntax: window.releaseevents(event.keypress | event.keydown | event.keyup). see also window.captureevents ( ). specification this is not part of any specification. browse...

Window.resizeTo() - Web APIs
the window.resizeto() method dynamically resizes the window. syntax window.resizeto(width, height) parameters width an integer representing the new outerwidth in pixels (including scroll bars, title bars, etc). height an integer value representing the new outerheight in pixels (including scroll bars, title bars, etc). example this function resizes the window so that it takes up one quarter of the available screen. see the screen.availwidth and screen.availheight properties. function quarter() { window.resizeto( window.screen.availwidth / 2, window.screen.availheight / 2 ); } specification specification status comment css object model (cssom) view modulethe definition of 'window.resizeto()' in that specification. working draft ...

Window.restore() - Web APIs
if you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. ...

Window.routeEvent() - Web APIs
browser compatibility the compatibility table in this page is generated from structured data. ...

Window.scrollByPages() - Web APIs
the window.scrollbypages() method scrolls the current document by the specified number of pages. syntax window.scrollbypages(pages) parameters pages is the number of pages to scroll. it may be a positive or negative integer. example // scroll down the document by 1 page window.scrollbypages(1); // scroll up the document by 1 page window.scrollbypages(-1); specification dom level 0. not part of specification. ...

Window.scrollMaxX - Web APIs
the window.scrollmaxx read-only property returns the maximum number of pixels that the document can be scrolled horizontally. syntax xmax = window.scrollmaxx xmax is the number of pixels. example // scroll to right edge of the page let maxx = window.scrollmaxx; window.scrollto(maxx, 0); notes do not use this property to get the total document width, which is not equivalent to window.innerwidth + window.scrollmaxx, because window.innerwidth includes the width of any visible vertical scrollbar, thus the result would exceed the total document width by the width of any visible vertical scrollbar. instead use document.body.scrollwidth. see also window.scrollmaxy. specification this is not part of any specification. ...

Window.scrollMaxY - Web APIs
the window.scrollmaxy read-only property returns the maximum number of pixels that the document can be scrolled vertically. syntax ymax = window.scrollmaxy ymax is the number of pixels. example // scroll to the bottom of the page let maxy = window.scrollmaxy; window.scrollto(0, maxy); notes do not use this property to get the total document height, which is not equivalent to window.innerheight + window.scrollmaxy, because window.innerheight includes the width of any visible horizontal scrollbar, thus the result would exceed the total document height by the width of any visible horizontal scrollbar. instead use document.body.scrollheight. see also window.scrollmaxx and window.scrollto. specification this is not part of any specification. ...

Window.scrollbars - Web APIs
the window.scrollbars property returns the scrollbars object, whose visibility can be checked. syntax objref = window.scrollbars example the following complete html example shows how the visible property of the scrollbars object is used. <!doctype html> <html> <head> <title>various dom tests</title> <script> let visiblescrollbars = window.scrollbars.visible; </script> </head> <body> <p>various dom tests</p> </body> </html> specifications specification status comment html living standardthe definition of 'window.scrollbars' in that specification. living standard html5the definition of 'window.scrollbars' in that specification. recommendation ...

Window.setCursor() - Web APIs
this function is unavailable to web pages, which can use the css cursor property instead. specification this is not part of any specification. browser compatibility the compatibility table in this page is generated from structured data. if you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. ...

Window.setImmediate() - Web APIs
y updates. this method is not expected to become standard, and is only implemented by recent builds of internet explorer and node.js 0.10+. it meets resistance both from gecko (firefox) and webkit (google/apple). syntax var immediateid = setimmediate(func, [param1, param2, ...]); var immediateid = setimmediate(func); where immediateid is the id of the immediate which can be used later with window.clearimmediate. func is the function you wish to call. all parameters will be passed directly to your function. notes the clearimmediate method can be used to clear the immediate actions, just like cleartimeout for settimeout. this method can be used instead of the settimeout(fn, 0) method to execute heavy operations. the feature can be emulated in a few different ways: postmessage can...

Window.sizeToContent() - Web APIs
the window.sizetocontent() method sizes the window according to its content. in order for it to work, the dom content should be loaded when this function is called—for example, once the domcontentloaded event has been thrown. the minimal size of the window can be clamped. syntax window.sizetocontent() example window.sizetocontent(); specification this feature is not part of any specification. ...

Window.status - Web APIs
the status property of the window interface was originally intended to set the text in the status bar at the bottom of the browser window. however, the html standard now requires setting window.status to have no effect on the text displayed in the status bar. syntax window.status = string; var value = window.status; specifications specification status comment html living standardthe definition of 'window.status' in that specification. living standard ...

Window.top - Web APIs
returns a reference to the topmost window in the window hierarchy. syntax var topwindow = window.top; notes where the window.parent property returns the immediate parent of the current window, window.top returns the topmost window in the hierarchy of window objects. this property is especially useful when you are dealing with a window that is in a subframe of a parent or parents, and you want to get to the top-level frameset. specifications specification status comment html living standardthe definition of 'window.top' in that specification. living standard html5the definition of 'window.top' in that specification. recommendation initial definition ...

Window.updateCommands() - Web APIs
whether we are in bold right now). notes this enables or disables items (setting or clearing the "disabled" attribute on the command node as appropriate), or ensures that the command state reflects the state of the selection by setting current state information in the "state" attribute of the xul command nodes. specification dom level 0. not part of specification. browser compatibility the compatibility table in this page is generated from structured data. ...

Window.visualViewport - Web APIs
the visualviewport read-only property of the window interface returns a visualviewport object representing the visual viewport for a given window. syntax var visualviewport = window.visualviewport value a visualviewport object. specifications specification status comment visual viewport apithe definition of 'visualviewport' in that specification. draft initial definition. ...

WindowEventHandlers.onafterprint - Web APIs
the onafterprint property of the windoweventhandlers mixin is the eventhandler for processing afterprint events for the current window. these events are raised after the user prints, or if they abort the print dialog. the beforeprint and afterprint events allow pages to change their content before printing starts (perhaps to remove a banner, for example) and then revert those changes after printing has completed. in general, you should prefer the use of an @media print css at-rule, but it may be necessary to use these events in some cases. syntax window.addeventlistener("afterprint", function(event) { ... }); window.onafterprint = function(event) { ... }; specification specification status comment html living standardthe definition of 'onafterprint' in that specific...

WindowEventHandlers.onmessageerror - Web APIs
the onmessageerror event handler of the windoweventhandlers interface is an eventlistener, called whenever an messageevent of type messageerror is fired on a window—that is, when it receives a message that cannot be deserialized. note: this feature is available in web workers. syntax window.onmessageerror = function() { ... }; specifications specification status comment html living standardthe definition of 'onmessageerror' in that specification. living standard ...

WindowEventHandlers.onrejectionhandled - Web APIs
the onrejectionhandled property of the windoweventhandlers mixin is the eventhandler for processing rejectionhandled events. these events are raised when promises are rejected. syntax window.addeventlistener("rejectionhandled", function(event) { ... }); window.onrejectionhandled = function(event) { ...}; example window.onrejectionhandled = function(e) { console.log(e.reason); } specifications specification status comment html living standardthe definition of 'onrejectionhandled' in that specification. living standard initial definition. ...

WindowEventHandlers.onstorage - Web APIs
the onstorage property of the windoweventhandlers mixin is an eventhandler for processing storage events. the storage event fires when a storage area has been changed in the context of another document. syntax window.onstorage = functionref; value functionref is a function name or a function expression. this function receives a storageevent as its sole argument. example this example logs the value for a storage key whenever it changes in another document. window.onstorage = function(e) { console.log('the ' + e.key + ' key has been changed from ' + e.oldvalue + ' to ' + e.newvalue + '.'); }; specifications specification status comment html living standardthe definition of 'onstorage' in that specification. living standard ...

WindowEventHandlers.onunhandledrejection - Web APIs
the onunhandledrejection property of the windoweventhandlers mixin is the eventhandler for processing unhandledrejection events. these events are raised for unhandled promise rejections. syntax window.onunhandledrejection = function; value function is an eventhandler or function to call when unhandledrejection events are received by the window. the event handler receives as an input parameter as a promiserejectionevent. examples this example simply logs unhandled rejections' reason values to the console. window.onunhandledrejection = function(e) { console.log(e.reason); } specifications specification status comment html living standardthe definition of 'onunhandledrejection' in that specification. living standard initial definition. ...

WindowOrWorkerGlobalScope.isSecureContext - Web APIs
the issecurecontext read-only property of the windoworworkerglobalscope interface returns a boolean indicating whether the current context is secure (true) or not (false). syntax var isitsecure = self.issecurecontext; // or just issecurecontext value a boolean. specifications specification status comment secure contextsthe definition of 'windoworworkerglobalscope.issecurecontext' in that specification. candidate recommendation initial definition. ...

WindowOrWorkerGlobalScope.origin - Web APIs
the origin read-only property of the windoworworkerglobalscope interface returns the origin of the global scope, serialized as a string. syntax var myorigin = self.origin; // or just origin value a usvstring. examples executed from inside a worker script, the following snippet will log the worker's global scope's origin to the console each time it receives a message onmessage = function() { console.log(self.origin); }; if the origin is not a scheme/host/port tuple (say you are trying to run it locally, i.e. via file:// url), origin will return the string "null". specifications specification status comment html living standardthe definition of 'windoworworkerglobalscope.origin' in that specification. living standard initial definition. ...

Index - Web APIs
rnode.analysernode() api, analysernode, audio, constructor, media, reference, web audio api the analysernode constructor of the web audio api creates a new analysernode object instance. 53 analysernode.fftsize api, analysernode, property, reference, web audio api, fftsize the fftsize property of the analysernode interface is an unsigned long value and represents the window size in samples that is used when performing a fast fourier transform (fft) to get frequency domain data. 54 analysernode.frequencybincount api, analysernode, property, reference, web audio api, frequencybincount the frequencybincount read-only property of the analysernode interface is an unsigned integer half that of the analysernode.fftsize. this generally equates to the nu...
...etion, without requiring a blocking request (for example xmlhttprequest). 274 using the beacon api guide, web performance the beacon interface schedules an asynchronous and non-blocking request to a web server. 275 beforeinstallpromptevent api, beforeinstallpromptevent, event, experimental, interface, reference the beforeinstallpromptevent is fired at the window.onbeforeinstallprompt handler before a user is prompted to "install" a web site to a home screen on mobile. 276 beforeinstallpromptevent.prompt() api, beforeinstallpromptevent, experimental, method, reference, prompt the prompt() method of the beforeinstallpromptevent interface allows a developer to show the install prompt at a time of their own choosing. 277 befo...
... to a home screen on mobile. 276 beforeinstallpromptevent.prompt() api, beforeinstallpromptevent, experimental, method, reference, prompt the prompt() method of the beforeinstallpromptevent interface allows a developer to show the install prompt at a time of their own choosing. 277 beforeunloadevent api, reference the beforeunload event is fired when the window, the document and its resources are about to be unloaded. 278 biquadfilternode api, biquadfilternode, interface, reference, web audio api the biquadfilternode interface represents a simple low-order filter, and is created using the audiocontext.createbiquadfilter() method. it is an audionode that can represent different kinds of filters, tone control devices, and graphic equa...
...And 263 more matches

Index - Archive of obsolete content
use very old software and you need to build web content that runs on that software. or perhaps you're just curious about the history of an obsolete feature or api, and how it worked. 2 .htaccess ( hypertext access ) 301 redirect, cache control, custom error pages, htaccess, permanent redirect, redirect file accessing : htaccess files can be opened using any text editor, like windows notepad, vin, sublime text editor or any other. syntax highliting support for .htaccess files less. 3 2015 mdn fellowship program 2015, archive, fellowship no summary! 4 api api, archive archived documentation about obsolete web standards apis. 5 navigator api, navigator features that used to hang off the navigator interface, but hav...
...ator interface, but have since been removed. 6 navigator.moznotification api, deprecated, mobile, non-standard, property, reference provides support for creating notification objects, which are used to display desktop notification alerts to the user. currently, these are only supported on firefox mobile and firefox os. see displaying notifications for an example. 7 window: deviceproximity event sensors, events the deviceproximity event is fired when fresh data is available from a proximity sensor. 8 window: userproximity event sensors, events no summary! 9 add-ons add-ons, archive, extensions archived add-ons documentation. 10 add-on sdk add-on sdk, jetpack no summary! 11 builder ...
...62 timers add-on sdk set one-off and periodic timers. 63 ui add-on sdk, add-ons, extensions, reference provides access to button, toolbar, and sidebar ui objects. 64 url add-on sdk construct, validate, and parse urls. 66 widget add-on sdk create a simple user interface for an add-on in firefox's add-on bar. 67 windows add-on sdk enumerate and examine open browser windows, open new windows, and listen for window events. 68 low-level apis no summary! 69 /loader create commonjs module loaders. 70 chrome the chrome module gives an add-on sdk add-on access to the components object, which in turn gives it access to a large set of privileged...
...And 115 more matches

Drawing and Event Handling - Plugins
« previousnext » this chapter tells how to determine whether a plug-in instance is windowed or windowless, how to draw and redraw plug-ins, and how to handle plug-in events. when it comes to determining the way a plug-in instance appears in a web page, you (and the web page author) have many options. the content provider who writes the web page determines its display mode: whether the plug-in is embedded, or displayed in its own separate page. you determine whether a plug-in is windowed or windowless by the way you define the plug-in itself. a windowed plug-in is drawn into its own native window (or portion of a native window) on a web page. a windowed plug-in is opaque, hiding the part of the page beneath its display window. this type of plug-in determines when it draws itself.
...is embedded, or displayed in its own separate page. you determine whether a plug-in is windowed or windowless by the way you define the plug-in itself. a windowed plug-in is drawn into its own native window (or portion of a native window) on a web page. a windowed plug-in is opaque, hiding the part of the page beneath its display window. this type of plug-in determines when it draws itself. a windowless plug-in does not require a native window. it is drawn in a target called a drawable, which corresponds to either the browser window or an off-screen bitmap. a drawable can be defined in several ways, depending on the platform. windowless plug-ins can be opaque or transparent. a windowless plug-in draws itself only in response to a paint message from the browser. for information about the wa...
...able, which corresponds to either the browser window or an off-screen bitmap. a drawable can be defined in several ways, depending on the platform. windowless plug-ins can be opaque or transparent. a windowless plug-in draws itself only in response to a paint message from the browser. for information about the way html determines plug-in display mode, see using html to display plug-ins. note: windowless plug-ins were not supported on the x window system platform prior to gecko 1.9 alpha 7 (bug 137189). the npwindow structure when a plug-in is loaded, it is drawn into a target area. this target is either the windowed plug-in's native window, or the drawable of a windowless plug-in. the npwindow structure represents either the native window or a drawable. this structure contains information...
...And 59 more matches

ARIA Test Cases - Accessibility
t work we may test with nightly builds if they are available, in order to show what is already fixed in upcoming releases. we can add more screen readers if people are willing to step up and provide test results for them. ...
...case structure test cases are organized as follows: test case links test details expected at behavior markup notes results table at firefox ie opera safari jaws 9 - - - - jaws 10 - 1. pass 2. ...
...n. for example, "options, button, alt+shift+t" should be spoken if there is an options button in the alert with alt+shift+t as an accesskey. ...
...And 54 more matches

nsISessionStore
browser/components/sessionstore/nsisessionstore.idlscriptable provides a means for extensions and other code to store data in association with browser sessions, tabs, and windows. the api operates on top-level browser.xul and navigator.xul windows; see note on windows for details. 1.0 66 introduced gecko 1.8 inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) in versions of firefox prior to 3.5, the user preference browser.sessionstore.enabled must be true for these calls to be successful. ...
... inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) in versions of firefox prior to 3.5, the user preference browser.sessionstore.enabled must be true for these calls to be successful. starting in firefox 3.5, this preference is no longer used. ...
...pports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) in versions of firefox prior to 3.5, the user preference browser.sessionstore.enabled must be true for these calls to be successful. starting in firefox 3.5, this preference is no longer used. ...
...And 52 more matches

Tabbed browser - Archive of obsolete content
here you should find a set of useful code snippets to help you work with firefox's tabbed browser. the comments normally mark where you should be inserting your own code. each snippet normally includes some code to run at initialization, these are best run using a load listener. these snippets assume they are run in the context of a browser window. if you need to work with tabs from a non-browser window, you need to obtain a reference to one first, see working with windows in chrome code for details. multiple meanings for the word 'browser' the word 'browser' is used several ways. of course the entire application firefox is called "a browser". within the firefox browser are tabs and inside each tab is a browser, both in the common sense of a web page browser and the xul sense of a bro...
...owser' the word 'browser' is used several ways. of course the entire application firefox is called "a browser". within the firefox browser are tabs and inside each tab is a browser, both in the common sense of a web page browser and the xul sense of a browser element. furthermore another meaning of 'browser' in this document and in some firefox source is "the tabbrowser element" in a firefox xul window. ...
...f course the entire application firefox is called "a browser". within the firefox browser are tabs and inside each tab is a browser, both in the common sense of a web page browser and the xul sense of a browser element. furthermore another meaning of 'browser' in this document and in some firefox source is "the tabbrowser element" in a firefox xul window. getting access to the browser from main window code running in firefox's global chromewindow, common for extensions that overlay into browser.xul, can access the tabbrowser element using the global variable gbrowser. // gbrowser is only accessible from the scope of // the browser window (browser.xul) gbrowser.addtab(...); if gbrowser isn't defined your code is either not running in the scope of the browser window or running too early. you...
...And 43 more matches

Index
found 1275 pages: # page tags and summary 1 xpcom add-ons, extensions, landing, mozilla, xpcom xpcom is a cross platform component object model, similar to microsoft com. it has multiple language bindings, allowing xpcom components to be used and implemented in javascript, java, and python in addition to c++. 2 accessing the windows registry using xpcom add-ons, code snippets, extensions, needsclassification, windows registry when implementing windows-specific functionality, it is often useful to access the windows registry for information about the environment or other installed programs. to this end, there exist xpcom interfaces to read and write registry data. this article will show you how to use the available interfaces in se...
...actory (nsfactory<t>) that simplifies the factory creation process that just requires writing a createinstance() method. the new nsigenericfactory interface takes this a step further, by providing a single interface that can be reused anytime a simple implementation of nsifactory is needed. here is the interface, and a description of its use.</t> 10 how to pass an xpcom object to a new window needsexample, needshelp if you want to be able to call functions within an xpcom object from a xul window's code, you can do so if you pass the xpcom object as one of the arguments to the window creation method. 11 how to build a binary xpcom component using visual studio add-ons, extensions, xpcom this is a simple tutorial for building xpcom objects in c++ using vi...
... object in the scope of the specified object's compartment. 34 components.utils.evalinsandbox add-ons, developing mozilla, extensions, javascript, xpcom:language bindings, xpconnect the evalinsandbox() function enables you to evaluate javascript code inside a sandbox you've previously created using the components.utils.sandbox constructor. 35 components.utils.evalinwindow this function enables code running in a more-privileged javascript context to evaluate a string in a less-privileged javascript context. the result is structured cloned back to the original context, unless it is native (for example, if it returns a dom node, this is not structured cloned, because the original context will see that through an xraywrapper already), so it's guaranteed to ...
...And 42 more matches

Chapter 5: Let's build a Firefox extension - Archive of obsolete content
way to work more efficiently. preference description value nglayout.debug.disable_xul_cache (not present in firefox 3.5+) ordinarily, firefox will cache xul documents after they have been read in once, to speed subsequent displays. disabling this cache forces xul documents to be reloaded any every time they are displayed. true browser.dom.window.dump.enabled (not present in firefox 3.5+) enables use of the dump method for debugging. refer to the “javascript debugging methods” sidebar. true javascript.options.showinconsole (present in firefox 3.5+) outputs javascript errors to the error console. true javascript.options.strict (present in firefox 3.5+) enforces strict error output from java...
...ole (present in firefox 3.5+) outputs javascript errors to the error console. true javascript.options.strict (present in firefox 3.5+) enforces strict error output from javascript true table 1: preferences to set for developing extensions to make these changes, start your development profile, type about:config into firefox’s location bar and open the preferences window; find the preferences listed in table 1 and double-click on them to set them accordingly. some of these preferences do not exist—to create them, right-click, select “new>boolean”, and type in the name and set the value accordingly. install the dom inspector the dom inspector is an extension that lets you examine html and xul dom tree structures, javascript objects and css properties, etc.
...ion to be valuable: extension developer https://addons.mozilla.org/firefox/addon/7434 developing extensions: what you need to know let’s delve into chrome, something you’ll need to know about in order to develop extensions. chrome what is chrome? “chrome”is the word used to describe all the gui structural elements that go into an xul application. for example, in the firefox browser window, everything other than the web page being displayed in the content area is chrome. extensions also can be considered xul applications with chrome. three kinds of packages make up chrome the content package this package is used to contain the main xul and javascript source files. most extensions consist of a single content package2 the locale package this package is used to contain language d...
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nsIAppShellService
ppshellservice. ...
... inherits from: nsisupports last changed in gecko 8.0 (firefox 8.0 / thunderbird 8.0 / seamonkey 2.5) implemented by: @mozilla.org/appshell/appshellservice;1 as a service: var appshellservice = components.classes["@mozilla.org/appshell/appshellservice;1"] .getservice(components.interfaces.nsiappshellservice); method overview void closetoplevelwindow(in nsixulwindow awindow); obsolete since gecko 1.8 void createhiddenwindow(in nsiappshell aappshell); native code only! boolean createstartupstate(in long awindowwidth, in long awindowheight); obsolete since gecko 1.8 nsixulwindow createtoplevelwindow(in nsixulwindow aparent, in nsiuri aurl, in pruint32 achromemask, in long ainitialwidth, in long ainitialheight, in nsiappshell aappshel...
...ko 1.8 void createhiddenwindow(in nsiappshell aappshell); native code only! ...
...And 37 more matches

BluetoothCharacteristicProperties - Web APIs
ome for androidfirefox for androidopera for androidsafari on iossamsung internetbluetoothcharacteristicproperties experimentalchrome full support 56notes full support 56notes notes chromeos and macos only. ...
...os only. full support 56notes disabled notes linux and versions of windows earlier than 10.disabled from version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). to change preferences in chrome, visit chrome://flags. full support 70notes notes windows 10.edge full support ≤79notes full support ≤79notes notes edgeos and macos only. ...
...nces in chrome, visit chrome://flags. full support 70notes notes windows 10.edge full support ≤79notes full support ≤79notes notes edgeos and macos only. full support ≤79notes disabled notes linux and versions of windows earlier than 10.disabled from version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). ...
...And 37 more matches

Index - Archive of obsolete content
no summary! 292 preference.name xul attributes, xul reference no summary! 293 preference.type needshelp, reference, référence(2), xul attributes, xul reference no summary! 294 prefpane.selected xul attributes, xul reference no summary! 295 prefpane.src xul attributes, xul reference no summary! 296 prefwindow.onload no summary! 297 prefwindow.type xul attributes, xul reference no summary! 298 primary xul attributes, xul reference no summary! 299 priority xul attributes, xul reference no summary! 300 progressmeter.max no summary! 301 progressmeter.mode xul attributes, xul reference no su...
... 338 sizetopopup xul attributes, xul reference no summary! 339 smoothscroll xul attributes, xul reference no summary! 340 sort xul attributes, xul reference no summary! 341 sortactive xul attributes, xul refer...
... no summary! 335 showpopup xul attributes, xul reference no summary! 336 size xul attributes, xul reference no summary! 337 sizemode xul attributes, xul reference this attribute is used to save and restore the state of a window (together with the persist attribute) and for css styles (e.g. to hide the resizer grippy on maximized windows). 338 sizetopopup xul attributes, xul reference no summary! 339 smoothscroll xul attributes, xul reference no summary! 340 sort xul attributes, xul reference no summary! 341 sortactive xul attributes, xul reference no summary! 342 sortdirection xul attributes, xul reference no summary! ...
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Standard OS Libraries
this article gives the names of standard libraries that can be accessed with js-ctypes. these libraries are what enable js-ctypes to work. the alternative to standard libraries is creating your own dll (for windows) or so (for linux) file with c functions that can be called from your add-on with js-ctypes. the dll/so/etc file you make must be shipped with your add-on. standard libraries offer the advantage of not having to ship anything. they are already available on the operating system for you. ...
...dd-on. standard libraries offer the advantage of not having to ship anything. they are already available on the operating system for you. you just need to supply the path to appropriate files and set up the proper types of values/arguments in the js-ctypes code. this article allows you to find out what types to give to values/arguments by supplying links to the documentation of the os libraries. windows windows has many standard os libraries. the most common, found on all windows os version, is "winapi". windows also has the "winapilists" and ".net framework" (i'm not sure if it can be accessed jsctypes but probably). a complete list of windows apis can be found at the msdn api index. winapi this is the one that is most commonly used by js-ctypes. this comes shipped by default with all insta...
...it's also known as winapi32 or just winapi. a list of all the functions available through this api can be found at the msdn winapi index. ...
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BluetoothRemoteGATTDescriptor - Web APIs
ndroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetbluetoothremotegattdescriptor experimentalchrome full support 57notes full support 57notes notes macos only. ...
...os only. full support 57notes disabled notes linux and versions of windows earlier than 10.disabled from version 57: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). to change preferences in chrome, visit chrome://flags. full support 70notes notes windows 10.edge full support ≤79notes full support ≤79notes notes macos only. ...
...nge preferences in chrome, visit chrome://flags. full support 70notes notes windows 10.edge full support ≤79notes full support ≤79notes notes macos only. full support ≤79notes disabled notes linux and versions of windows earlier than 10.disabled from version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled). ...
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ui/frame - Archive of obsolete content
add-on's "data" directory, we can create a frame hosting it and add the frame to a toolbar like this: var { frame } = require("sdk/ui/frame"); var { toolbar } = require("sdk/ui/toolbar"); var frame = new frame({ url: "./city-info.html" }); var toolbar = toolbar({ name: "city-info", title: "city info", items: [frame] }); the toolbar is positioned between the address bar and the content window. it occupies the whole width of the browser window and is 18 pixels high on a normal-resolution display or 36 pixels high on a high-resolution (hidpi) display. this toolbar might look something like: scripting frames to add scripts to frames, include them directly from the frame's html content, as with a normal web page: <script type="text/javascript" src="frame.js"></script> as usual, the ...
...relative to the html file's location. messages logged from a frame script using the console will not appear in the terminal when you run the add-on using jpm run. however, they will appear in the browser console. this issue is being tracked as bug 982385. ...
...the console will not appear in the terminal when you run the add-on using jpm run. however, they will appear in the browser console. this issue is being tracked as bug 982385. communicating with frames you can exchange messages between the main add-on code and scripts loaded into the frame using an api modeled on window.postmessage(). a frame creates a separate iframe instance for each browser window. ...
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Implementing a Microsoft Active Accessibility (MSAA) Server - Accessibility
ent is for developers working to support msaa in an application in order to make it accessible with 3rd party assistive technologies, as well as for hackers wishing to be involved in mozilla's msaa support specifically. if you're implementing controls/widgets, you should also see the accessible toolkit checklist. if you're interested in more about gecko's msaa implementation, read gecko info for windows accessibility vendors to learn how msaa clients can utilize gecko's msaa support. intro: what is msaa? msaa is the microsoft active accessibility (msaa) api, used on windows operating systems to support assistive technologies for users with disabilities. third party assistive technology, such as screen readers, screen magnifiers and voice input software, want to track what's happening inside...
...en magnifiers will zoom to the focus, keeping it on the screen at all times, or even allow the user to enter a special low vision document reading mode, with a variety of features such as ticker mode where text is streamed on a single line. finally, voice dictation software needs to know what's in the current document or ui in order to implement "say what you see" kinds of features. on microsoft windows, these kinds of assistive technology acquire this necessary information via a combination of hacks, msaa and proprietary doms. msaa is supposed to be the "right way" for accessibility aids to get information, but sometimes the hacks are more effective. for example, screen readers look for screen draws of a vertical blinking line, to determine the location of the caret. without doing this, screen...
...ms, because so many applications do not use the system caret (gecko does not). this is so commonly done, that no one even bothers to support the msaa caret, after all the hack is general solution works with pretty much all applications. msaa provides information in several different ways: a com interface (iaccessible) that allows applications to expose the tree of data nodes that make up each window in the user interface currently being interacted with and custom interface extensions via interfaces via queryinterface and queryservice. this can provide assistive technology with contextual information specific to your object model. for example, gecko support isimpledomnode to provide information about the dom node for an accessible object. a set of system messages that confer accessibility-r...
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ui/button/toggle - Archive of obsolete content
experimental add a toggle button to the firefox user interface. with this module you can create buttons that function like a check box, representing an on/off choice. toggle buttons have all the same features as action buttons: they can display icons and respond to click events. like action buttons, you can control their state on a per-window or per-tab basis as well as globally. toggle buttons have two extra features: they emit a change event when clicked, as well as a click event. they have an extra attribute checked that is automatically toggled when the button is clicked. when a button is checked it gets a "pressed" look in the user interface (note that the "pressed" look currently does not work in mac os x). usage creating buttons to create a button you must give it an id, an i...
...utton", label: "my button", icon: { "16": "./icon-16.png", "32": "./icon-32.png", "64": "./icon-64.png" }, onchange: handlechange }); var panel = panels.panel({ contenturl: self.data.url("panel.html"), onhide: handlehide }); function handlechange(state) { if (state.checked) { panel.show({ position: button }); } } function handlehide() { button.state('window', {checked: false}); } disabling buttons you can disable a button by setting its disabled property to true. a disabled button will not generate click or change events and its icon will appear disabled: updating state you can update all the button's properties, except for its id. depending on your application, you might want a button to have different state in different browser windows o...
...cept for its id. depending on your application, you might want a button to have different state in different browser windows or different tabs. for example, you might want to give it a different appearance when the current page is being served over https. the button api handles this by defining a tree of potential states. at the root is the global state, then there's a state you can set for each window, then a state you can set for each tab. more-specific states override less-specific states. for example, suppose the browser has two windows (w1 and w2), and each window has two tabs. ...
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nsIMsgFolder
the nsimsgfolder interface is used to interact with folders in thunderbird. this page is out of date. check //github.com/realityripple/uxp/blob/master/mailnews/base/public/nsimsgfolder.idl for the newer methods (esp. isspecialfolder and such). ...
...nsimsgfolder interface is used to interact with folders in thunderbird. this page is out of date. check //github.com/realityripple/uxp/blob/master/mailnews/base/public/nsimsgfolder.idl for the newer methods (esp. isspecialfolder and such). ...
... thunderbird. this page is out of date. check //github.com/realityripple/uxp/blob/master/mailnews/base/public/nsimsgfolder.idl for the newer methods (esp. isspecialfolder and such). ...
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CustomizableUI.jsm
this module is only available from firefox 29 onwards. the customizableui.jsm javascript code module allows you to interact with customizable buttons and items in firefox's main window ui. it is available in the firefox window as the customizableui property on the window. if you want to use it from a jsm or another context without a window reference, you need to import it yourself: components.utils.import("resource:///modules/customizableui.jsm"); introduction the module is intended for two primary purposes: allow adding, moving and removing customizable widgets. manage the areas in which these widgets are shown. note that it is expressly not really aware about the specific ui used by users to make customizations. this is handled by customizemode.jsm, which interacts with cus...
...dgets are shown. note that it is expressly not really aware about the specific ui used by users to make customizations. this is handled by customizemode.jsm, which interacts with customizableui through a listener mechanism. areas areas are parts of the user interface in which customizable widgets can be placed. customizableui assumes that each area it is told about is present in every browser window. customizableui is aware of two types of areas: toolbars and the menu panel. areas are registered using the registerarea method and unregistered using the unregisterarea method. when a customizable toolbar's xbl binding is constructed (generally, that is when a <toolbar customizable="true"/> node is appended to the document and isn't invisible), the binding will call into customizableui and regi...
...olbar's horizontal space, the excess widgets will be placed in a panel accessible from an anchor (chevron) in the toolbar. in order to register such a toolbar, set the 'overflowable' property to true, and provide the id of the anchor in the 'anchor' property. widgets widget is the term that customizableui uses for each of the items in a customizable area. ...
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nsIMsgMessageService
t implements nsimsgmessageservice give the user top level routines related to messages like copying, displaying, attachment's manipulation, printing, streaming the message content to eml format string, etc. ...
...s nsimsgmessageservice give the user top level routines related to messages like copying, displaying, attachment's manipulation, printing, streaming the message content to eml format string, etc. ...
...orts method overview void copymessage(in string asrcuri, in nsistreamlistener acopylistener, in boolean amovemessage, in nsiurllistener aurllistener, in nsimsgwindow amsgwindow, out nsiuri aurl); [noscript] void copymessages(in nsmsgkeyarrayptr keys, in nsimsgfolder srcfolder, in nsistreamlistener acopylistener, in boolean amovemessage, in nsiurllistener aurllistener, in nsimsgwindow amsgwindow, out nsiuri aurl); void displaymessage(in string amessageuri, in nsisupports adisplayconsumer, in nsimsgwindow amsgwindow, in nsiurllistener aurllistener, in string acharsetoverride, out nsiuri aurl); void openattachment(in string acontenttype, in string afilename, in string aurl, in string amessageuri, in nsisupports adisplayconsumer, in nsimsgwindow amsgwindow, in n...
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Extending a Protocol
nsastring& as the domstring comes in from js as utf-16. this will matter later, as we will need to convert it to utf-8 (using nscstring) to send it to the parent process. now let's implement the method in ./dom/base/navigator.cpp - we add a little bit of error boilerplate stuff, as is customary: already_addrefed<promise> navigator::echo(const nsastring& astring, errorresult& arv) { if (!mwindow || !mwindow->getdocshell()) { arv.throw(ns_error_unexpected); return nullptr; } refptr<promise> echopromise = promise::create(mwindow->asglobal(), arv); if (ns_warn_if(arv.failed())) { return nullptr; } // message passing magic will happen here! return echopromise.forget(); } ok, let's ./mach build and make sure everything is compiling ok. once it's compiled, ./mach r...
...a back to the child. sometimes, the parent will want to notify all its children of something. so communication can go in both directions. in this tutorial, we are just going to cover a child talking to a parent, and the parent responding with some data. in order to manage parent-child relationships, ipdl uses a tree herirachy to manage the creation of children. as dom apis have access to the window object, we generally want to use the "pwindowglobal" protocol to manage things for us: this protocol is convinient because we can easily access it from the window object... so as long as we can get a hold of a window object, we can get it to do useful things for us (as we shall soon see!). in our case, our protocol, which we will call pecho.ipdl, will send a message to a parent, and the parent w...
... is convinient because we can easily access it from the window object... so as long as we can get a hold of a window object, we can get it to do useful things for us (as we shall soon see!). in our case, our protocol, which we will call pecho.ipdl, will send a message to a parent, and the parent will respond with the message we sent. as a heirarchy, this will look like this: this means that, pwindowglobal.ipdl: manages: meaning that pwindowglobal.ipdl is responsible managing the creation of instances of pecho children and the parent. and the inverse is also true, as you will soon see: pecho.idpl will need explicitly state that pwindowglobal.ipdl is managing it. includes: this is kinda like "#includes" in c++, except it's not a preprocessor directive. it just includes the defintion and...
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Key Values - Web APIs
ys | phone keys | multimedia keys | audio control keys | tv control keys | media controller keys | speech recognition keys | document keys | application selector keys | browser control keys | numeric keypad keys special values values of key which have special meanings other than identifying a specific key or character. keyboardevent.key value description virtual keycode windows mac linux android "unidentified" the user agent wasn't able to map the event's virtual keycode to a specific key value. this can happen due to hardware or software constraints, or because of constraints around the platform on which the user agent is running. varies varies varies varies modifier keys modifiers are special keys which are u...
...the user agent is running. varies varies varies varies modifier keys modifiers are special keys which are used to generate special characters or cause special actions when used in combination with other keys. examples include the shift and control keys, and lock keys such as caps lock and numlock. keyboardevent.key value description virtual keycode windows mac linux android "alt" [5] the alt (alternative) key. vk_menu (0x12) vk_lmenu (0xa4) vk_rmenu (0xa5) kvk_option (0x3a) kvk_rightoption (0x3d) gdk_key_alt_l (0xffe9) gdk_key_alt_r (0xffea) qt::key_alt (0x01000023) keycode_alt_left (57) keycode_alt_right (58) "altgraph" [5] the altgr or altgraph (alternate graphics) key. enables...
...e function key mode described by "fn" on and off. often handled in hardware so that events aren't generated for this key. "hyper" [4] the hyper key. gdk_key_hyper_l (0xffed) gdk_key_hyper_r (0xffee) qt::key_hyper_l (0x01000056) qt::key_hyper_r (0x01000057) "meta" [1] the meta key. allows issuing special command inputs. this is the windows logo key, or the command or ⌘ key on mac keyboards. vk_lwin (0x5b) vk_rwin (0x5c) kvk_command (0x37) kvk_rightcommand (0x36) gdk_key_meta_l (0xffe7) gdk_key_meta_r (0xffe8) qt::key_meta (0x01000022) keycode_meta_left (117) keycode_meta_right (118) "numlock" the numlock (number lock) key. toggles the numeric keypad between number entry some other mode...
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nsIPromptService
inherits from: nsisupports last changed in gecko 1.7.5 you can define access keys (or keyboard shortcuts) for buttons by including an ampersand ("&") in front of the character that should be the access key for that button. if you need to include an ampersand in the button's text, use two of them, like this: "&&". note: some of these interface methods use out and inout parameters. in c++, out parameters are pointers. for javascript, they are extra work, as you can't use an out parameter directly. ...
...arameter type. for more information on out parameters and javascript refer to working with out parameters. implemented by: @mozilla.org/embedcomp/prompt-service;1. ...
... parameters. implemented by: @mozilla.org/embedcomp/prompt-service;1. ...
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Interacting with page scripts - Archive of obsolete content
how to send messages between content scripts and page scripts sharing objects with page scripts there are two possible cases here: a content script might want to access an object defined by a page script a content script might want to expose an object to a page script access objects defined by page scripts to access page script objects from content scripts, you can use the global unsafewindow object. with unsafewindow you can see javascript objects that have been defined by page scripts, and if a page script has modified the behavior of native dom functions, you'll get the modified version of them as well. in this example a page script adds a string variable foo to the window: <!doctype html"> <html> <head> <script> window.foo = "hello from page script" </script> </h...
...en defined by page scripts, and if a page script has modified the behavior of native dom functions, you'll get the modified version of them as well. ...
...ipts, and if a page script has modified the behavior of native dom functions, you'll get the modified version of them as well. ...
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Chapter 3: Introduction to XUL—How to build a more intuitive UI - Archive of obsolete content
extensions. introduction an overview of xul xul is an xml-based language, and was developed to be the gui markup language for the mozilla browser. there are earlier experiments going back a long way in developing user interfaces using a combination of html and scripting languages, and xul could be considered an evolutionary step from that. similar approaches are found in xaml, which is used in windows vista, and flex, which is used in adobe flash. like web pages, which display the same regardless of platform, applications marked up in xul will work the same in any environment where firefox runs. because html was originally conceived as a language for marking up documents, specifically web pages, it is inevitably lacking in functionality for marking up applications. xul, on the other hand, wa...
... browsers based on firefox or the gecko engine, and even web-based content also used xul. for example, there is the mozilla amazon browser, which helps with shopping at amazon, and the presentation method in xul, a tool for writing and displaying presentations to try out the code samples in this chapter, save them as text files with .xul extensions and drag and drop them into the firefox browser window. fixme: explain how setting this option and use next listings if we want to run firefox displaying none of its gui and only the contents of a certain xul file, we can launch firefox and set the option: -chrome file_url.xul another way, as shown in listing 1, is to use the window.opendialog() method, which can be used only within a xul window. this is used by extensions to open a separate windo...
...ixme: explain how setting this option and use next listings if we want to run firefox displaying none of its gui and only the contents of a certain xul file, we can launch firefox and set the option: -chrome file_url.xul another way, as shown in listing 1, is to use the window.opendialog() method, which can be used only within a xul window. this is used by extensions to open a separate window. window.opendialog('another.xul', '_blank','chrome,all,dialog=no'); listing 1: opening a window without the firefox gui xul as an xml application listing 2 shows an example of a gui definition file marked up in xul (a "xul document"). the root element in xul is generally the "window" element. the namespace uri is : http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul if the character enco...
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MCD, Mission Control Desktop, AKA AutoConfig - Archive of obsolete content
tely automatic configuration of mozilla's apps preferences based on users properties either retrieved from system environement variables or on an organisation ldap directory. situation int-evry manages about 3000 users (mostly students) who share computers in labs and "self service" computer rooms. hence a single computer might connect many different users all day long. computers are dual-boot (windows 7 and linux fedora 19 by 2013). all users have a personal account on a windows server (ad) and an ldap account for linux authentication. objective the objective is to provide users with a mailer agent, a web browser, and a news reader which are automatically configured (preferences) at startup to the current user connected on the computer. choosing mozilla products allow us to use the same app...
... instead of configuring end user individual preferences files (~/.mozilla/default/randomdir/prefs.js) we now use a centralized default set of preferences. ...
...on name , language, homepage etc...) from the enterprise directory. central configuration file that feature is provided through a javascript file. file location (not tested since 2012 ...) in thunderbird , firefox, the javascript preference file that calls the centralized preference file is located in $install_dir_moz_app/defaults/pref, for example in thunderbird this would be repectively for windows/linux: c:\program files\mozilla thunderbird\defaults\pref /usr/lib/thunderbird/default/pref ( it used to be in /usr/lib/thunderbird-version#/default/pref as in /usr/lib/thunderbird-5/default/pref ) for the record/history purpose ... the old netscape 4.x the file is encoded (byte-shift/rotary is 7), and the presence of the file (netscape.cfg) in the mozilla_home directory suffices for it to b...
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jspage - Archive of obsolete content
"){if(a.callee){return"arguments"; }else{if(a.item){return"collection";}}}}return typeof a;}function $unlink(c){var b;switch($type(c)){case"object":b={};for(var e in c){b[e]=$unlink(c[e]); }break;case"hash":b=new hash(c);break;case"array":b=[];for(var d=0,a=c.length;d<a;d++){b[d]=$unlink(c[d]);}break;default:return c;}return b;}var browser=$merge({engine:{name:"unknown",version:0},platform:{name:(window.orientation!=undefined)?"ipod":(navigator.platform.match(/mac|win|linux/i)||["other"])[0].tolowercase()},features:{xpath:!!(document.evaluate),air:!!(window.runtime),query:!!(document.queryselector)},plugins:{},engines:{presto:function(){return(!window.opera)?false:((arguments.callee.caller)?960:((document.getelementsbyclassname)?950:925)); },trident:function(){return(!window.activexobject)?false...
...ientation!=undefined)?"ipod":(navigator.platform.match(/mac|win|linux/i)||["other"])[0].tolowercase()},features:{xpath:!!(document.evaluate),air:!!(window.runtime),query:!!(document.queryselector)},plugins:{},engines:{presto:function(){return(!window.opera)?false:((arguments.callee.caller)?960:((document.getelementsbyclassname)?950:925)); },trident:function(){return(!window.activexobject)?false:((window.xmlhttprequest)?((document.queryselectorall)?6:5):4);},webkit:function(){return(navigator.taintenabled)?false:((browser.features.xpath)?((browser.features.query)?525:420):419); },gecko:function(){return(!document.getboxobjectfor&&window.mozinnerscreenx==null)?false:((document.getelementsbyclassname)?19:18);}}},browser||{});browser.platform[browser.platform.name]=true; browser.detect=function(){fo...
...};browser.features.xhr=!!(browser.request());browser.plugins.flash=(function(){var a=($try(function(){return navigator.plugins["shockwave flash"].description; },function(){return new activexobject("shockwaveflash.shockwaveflash").getvariable("$version");})||"0 r0").match(/\d+/g);return{version:parseint(a[0]||0+"."+a[1],10)||0,build:parseint(a[2],10)||0}; })();function $exec(b){if(!b){return b;}if(window.execscript){window.execscript(b);}else{var a=document.createelement("script");a.setattribute("type","text/javascript"); a[(browser.engine.webkit&&browser.engine.version<420)?"innertext":"text"]=b;document.head.appendchild(a);document.head.removechild(a);}return b;}native.uid=1; var $uid=(browser.engine.trident)?function(a){return(a.uid||(a.uid=[native.uid++]))[0];}:function(a){return a.uid||(a.ui...
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nsIFocusManager
66 introduced gecko 1.9.2 inherits from: nsisupports last changed in gecko 5.0 (firefox 5.0 / thunderbird 5.0 / seamonkey 2.2) implemented by: @mozilla.org/focus-manager;1 as a service: var focusmanager = components.classes["@mozilla.org/focus-manager;1"] .getservice(components.interfaces.nsifocusmanager); method overview void clearfocus(in nsidomwindow awindow); void contentremoved(in nsidocument adocument, in nsicontent aelement); native code only! obsolete since gecko 2.0 void firedelayedevents(in nsidocument adocument); native code only! void focusplugin(in nsicontent aplugin); native code only! nsidomelement getfocusedelementforwindow(in nsidomwindow awindow, in prbool adeep, out nsidomwindow afocusedwin...
...nt adocument, in nsicontent aelement); native code only! obsolete since gecko 2.0 void firedelayedevents(in nsidocument adocument); native code only! void focusplugin(in nsicontent aplugin); native code only! ...
...ument, in nsicontent aelement); native code only! obsolete since gecko 2.0 void firedelayedevents(in nsidocument adocument); native code only! void focusplugin(in nsicontent aplugin); native code only! ...
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SubtleCrypto.wrapKey() - Web APIs
te: you can try the working examples out on github. raw wrap this example wraps an aes key. it uses "raw" as the export format and aes-kw, with a password-derived key, to encrypt it. see the complete code on github. let salt; /* get some key material to use as input to the derivekey method. the key material is a password supplied by the user. ...
...ps an aes key. it uses "raw" as the export format and aes-kw, with a password-derived key, to encrypt it. see the complete code on github. let salt; /* get some key material to use as input to the derivekey method. the key material is a password supplied by the user. ...
...unction getkeymaterial() { const password = window.prompt("enter your password"); const enc = new textencoder(); return window.crypto.subtle.importkey( "raw", enc.encode(password), {name: "pbkdf2"}, false, ["derivebits", "derivekey"] ); } /* given some key material and some random salt derive an aes-kw key using pbkdf2. */ function getkey(keymaterial, salt) { return window.crypto.subtle.derivekey( { "name": "pbkdf2", salt: salt, "iterations": 100000, "hash": "sha-256" }, keymaterial, { "name": "aes-kw", "length": 256}, true, [ "wrapkey", "unwrapkey" ] ); } /* wrap the given key. ...
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ui/button/action - Archive of obsolete content
s programmatically with the button's click() method. disabling buttons you can disable a button by setting its disabled property to true. a disabled button will not generate click events and its icon will appear disabled: updating state you can update all the button's properties except for its id. ...
...n disable a button by setting its disabled property to true. a disabled button will not generate click events and its icon will appear disabled: updating state you can update all the button's properties except for its id. by default, the button has global state: that is, its properties are the same across all open windows and tabs, and updating them updates the button's state across all open windows and tabs. ...
...ue. a disabled button will not generate click events and its icon will appear disabled: updating state you can update all the button's properties except for its id. by default, the button has global state: that is, its properties are the same across all open windows and tabs, and updating them updates the button's state across all open windows and tabs. you can set state to be specific to a window or tab using the button's state() method. to set state like this, call state() with 2 parameters: the first parameter is a window or tab object or as a shorthand, the string "window" for the currently active window, or the string "tab" for the currently active tab the second parameter is an object containing the state properties you wish to update. here's an add-on with a button that disabl...
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Introduction to XUL - Archive of obsolete content
warning: the content of this article may be out of date. preamble mozilla has configurable, downloadable chrome, meaning that the arrangement and even presence or absence of controls in the main window is not hardwired into the application, but loaded from a separate ui description. in fact, most of mozilla's windows (and dialogs) will be described using this mechanism. xul (pronounced "zool," as if that spelling helped any, and short for "xml user interface language") is our name for the language in which these ui descriptions are built. window chrome is displayed and managed by the same layout engine that manages html content in the browser. ui descriptions, then, look a great deal like html 4. xul is an application of xml. in fact, it is just xml with specific meaning define...
...igners and build engineers will need to maintain separate, platform-specific versions of at least some xul documents. "xptoolkit" is rather synonymous with xpfe. though the former term seems more concrete than the other, and therefore is not an exact replacement, no one is completely certain why we have both. "xul" already introduced, is an application of xml used to describe the layout of most windows in the mozilla browser, including and especially the main, browser window. scope this paper makes no attempt to explain requirements. we don't have a current "requirements" document. xptoolkit architecture is a better place to gain an understanding of such things. this paper contains a short introduction to mozilla front-end architecture, concentrating on the task of building uis. it is, as al...
... control of the individual widget, and set when the widget was built. relative placement of widgets, their interactions with each other, and optionally some of their configuration, will be controlled by a ui layout specified in a script whose structure is defined in this and related documents. widgets are pieces of the application largely self-contained, generally corresponding to a rectangle of window real estate. widgets will generally live grouped in separate, dynamically loaded libraries. a widget may expect to own a piece of a window (a toolbar or toolbar set), or it may be expected to work within or without a window (menubars, depending on the platform). it may not be a part of the application ui at all. widgets will have predefined behaviour, set at compilation. buttons will respond to ...
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The Essentials of an Extension - Archive of obsolete content
nge. testing your add-ons with every firefox version is always recommended, though. this is the information firefox and other mozilla applications need to install an add-on. any errors or missing information will cause the installation process to fail, or the extension to be installed in a disabled state. ...
...h every firefox version is always recommended, though. this is the information firefox and other mozilla applications need to install an add-on. any errors or missing information will cause the installation process to fail, or the extension to be installed in a disabled state. the chrome.manifest file chrome is the set of user interface elements of the application window that are outside of a window's content area. toolbars, menu bars, progress bars, and window title bars are all examples of elements that are typically part of the chrome. taken from chrome registration. in other words, the chrome is everything you see in firefox. all firefox windows can be seen as having two parts: (1) the chrome and (2) possibly a content area, like the one that displays web pages in a firefox tab. windo...
...most of the code for an extension resides in the chrome folder, just like in the hello world example. as we saw in the directory structure of the unpacked extension, the chrome is composed of 3 sections: content, locale and skin. the 3 are necessary for most extensions. ...
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Common causes of memory leaks in extensions - Extensions
this page explains coding patterns that cause extension to cause memory leaks. causes of zombie compartments zombie compartments are a particular kind of memory leak. all zombie compartments in extensions are caused by a failure to release resources appropriately in certain circumstances, such as when a window is closed, a page unloads, or an extension is disabled or removed. ...
...indow is closed, a page unloads, or an extension is disabled or removed. while bug 695480 should prevent most of these compartment leaks, add-ons still need to be aware of the practices that caused these leaks, as the fix causes many add-ons which would have otherwise caused a leak to instead throw errors when attempting to access nodes from documents which no longer exist. ...
...t most of these compartment leaks, add-ons still need to be aware of the practices that caused these leaks, as the fix causes many add-ons which would have otherwise caused a leak to instead throw errors when attempting to access nodes from documents which no longer exist. storing references to window objects and dom nodes the most common problem is extensions holding onto references to content windows for too long. ...
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Mozilla DOM Hacking Guide
rly, then return type of the c++ function will be wrapped by xpconnect so that javascript can use it safely. when, in javascript, a client tries to access a dom object or a dom method on a dom object, the js engine asks xpconnect to search for the relevant c++ method to call. for example, when we ask for |document.getelementbyid("myid");|, xpconnect will find that |document| is a property of the window object, so it will look on the interface nsidomwindow, and it will find the getdocument() method. the return value of getdocument() is a nsidomdocument. so xpconnect will then try to find a method named getelementbyid() on the nsidomdocument interface. and indeed it will find it, and thus call it. this is the schema used most of the time when using w3c dom objects and methods. it is however diff...
...n value of getdocument() is a nsidomdocument. so xpconnect will then try to find a method named getelementbyid() on the nsidomdocument interface. and indeed it will find it, and thus call it. this is the schema used most of the time when using w3c dom objects and methods. it is however different for some dom level 0 objects and methods. i'll take two very different examples. ...
... the nsidomdocument interface. and indeed it will find it, and thus call it. this is the schema used most of the time when using w3c dom objects and methods. it is however different for some dom level 0 objects and methods. i'll take two very different examples. the first one is the window.location object (the same holds true for document.location, actually). we can change the url of the current window by assigning window.location. in idl, location is declared to be a readonly attribute. this is because, if we had a setlocation() method, it would take an nsidomlocation parameter, and not a url string. instead, in the helper class for the window object (nswindowsh, see the next section), we define the getproperty() member function. getproperty() is a function used by xpconnect when we are settin...
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nsIMessenger
g, or deleting messages and attachments in mailnews. inherits from: nsisupports implemented by: @mozilla.org/messenger;1. ...
...zilla.org/messenger;1. to create an instance, use: messenger = components.classes["@mozilla.org/messenger;1"] .createinstance(components.interfaces.nsimessenger); in thunderbird, a global nsimessenger object is defined as messenger via the createmessenger function in mailwindow.js. ...
...ger;1. to create an instance, use: messenger = components.classes["@mozilla.org/messenger;1"] .createinstance(components.interfaces.nsimessenger); in thunderbird, a global nsimessenger object is defined as messenger via the createmessenger function in mailwindow.js. ...
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WebIDL bindings
terface_map_end if your class doesn't inherit from a class that implements getparentobject, then add a function of that name that, for a given instance of your class, returns the same object every time (unless you write explicit code that handles your parent object changing by reparenting js wrappers, as nodes do). the idea is that walking the getparentobject chain will eventually get you to a window, so that every webidl object is associated with a particular window. for example, nsinode::getparentobject returns the node's owner document. the return type of getparentobject doesn't matter other than it must either singly-inherit from nsisupports or have a corresponding tosupports method that can produce an nsisupports from it. (this allows the return value to be implicitly converted to a...
...turn types. you can see an example of what the function declarations should look like by running mach webidl-example myinterface. this will produce two files in dom/bindings in your objdir: myinterface-example.h and myinterface-example.cpp, which show a basic implementation of the interface using a class that inherits from nsisupports and has a wrapper cache. see this sample patch that migrates window.performance.* to webidl bindings. note: if your object can only be reflected into js by creating it, not by retrieving it from somewhere, you can skip steps 1 and 2 above and instead add 'wrappercache': false to your descriptor. you will need to flag the functions that return your object as [newobject] in the webidl. if your object is not refcounted then the return value of functions that return...
...with a void return value and a single argument whose type is the attribute's type. c++ reflections of webidl constructors a webidl constructor is turned into a static class method named constructor. the arguments of this method will be the arguments of the webidl constructor, with a const globalobject& for the relevant global prepended. for the non-worker case, the global is typically the inner window for the dom window the constructor function is attached to. if a jscontext* is also needed due to some of the argument types, it will come after the global. the return value of the constructor for myinterface is exactly the same as that of a method returning an instance of myinterface. constructors are always allowed to throw. for example, this idl: [constructor, constructor(unsigned long some...
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Index of archived content - Archive of obsolete content
page-mod page-worker panel passwords private-browsing querystring request selection self simple-prefs simple-storage system tabs timers ui url widget windows low-level apis /loader chrome console/plain-text console/traceback content/content content/loader content/mod content/symbiont content/worker core/heritage core/namespace ...
... test/runner test/utils ui/button/action ui/button/toggle ui/frame ui/id ui/sidebar ui/toolbar util/array util/collection util/deprecate util/list util/match-pattern util/object util/uuid window/utils release notes tools cfx cfx to jpm console jpm jpm-mobile jpmignore package.json tutorials add a context menu item add a ...
...ons autocomplete bookmarks boxes canvas code snippets cookies customizing the download progress bar delayed execution dialogs and prompts downloading files drag & drop embedding svg examples and demos from articles file i/o finding window handles forms related code snippets html in xul for rich tooltips html to dom isdefaultnamespace js xpcom javascript debugger service javascript timers javascript daemons management label and description lookupnamespaceuri...
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Using XPInstall to Install Plugins - Archive of obsolete content
plugin as an extension. xpinstall is a javascript-based installer technology that works across all the platforms that mozilla and netscape browsers based on mozilla (such as netscape 7) are deployed. it can be a way to ensure a smooth user-experience when obtaining plugins, without obliging the user to exit the browsing environment to launch a binary installer (the classic setup.exe experience on windows) or obliging the user to restart their browser. for plugin vendors who have already written a native code (e.g. exe) installer, xpinstall can wrap this native installer and run it so that the user never has to leave the browsing environment and click on the exe to run it. this article presents a guideline for improving the plugin installation experience for netscape gecko browsers using xpinstal...
... "cross platform install" (hence "xp" -- an abbreviation for "cross platform"). an xpinstall package is usually called an xpi package for short (and often pronounced "zippy"). this article is about how you can use xpinstall to install plugins to the browsers that support xpinstall. an xpi package is in fact a zip file with the xpi file extension (e.g. myplugininstaller.xpi), and can be created on windows by utilities such as winzip. xpi packages, like zip files, "contain" other files, typically: the software component to be installed. in our case, this is the plugin software. a javascript file called install.js, which is the install logic that drives the installation. this includes instructions on where to install the software, and what messages to feed to the user. you can create an xpinsta...
...ware based on netscape gecko, the layout engine of the mozilla project. caveats: aol time warner's compuserve browser, also based on netscape gecko, does not support xpinstall. netscape communicator 4.x does not support xpinstall. what does a plugin consist of? plugins can consist of the following types of files, all of which can be installed via an xpi package: shared libraries (i.e. on windows, these are dlls, on unix these are *.so files). these files are native code files made with the netscape plugin api. if the plugin is scriptable, then it will also consist of an xpt file. examples would be flash 6r47 on windows, which consists of a dll (called npswf32.dll) and an xpt file for scriptability (called flashplayer.xpt). if you are developing a plugin and wish to make it scriptable, ...
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All keyboard shortcuts - Firefox Developer Tools
. the first section lists the shortcut for opening each tool and the second section lists shortcuts that are applicable to the toolbox itself. after that there's one section for each tool, which lists the shortcuts that you can use within that tool. because access keys are locale-dependent, they're not documented in this page. ...
...each tool, which lists the shortcuts that you can use within that tool. because access keys are locale-dependent, they're not documented in this page. opening and closing tools these shortcuts work in the main browser window to open the specified tool. the same shortcuts will work to close tools hosted in the toolbox, if the tool is active. for tools like the browser console that open in a new window, you have to close the window to close the tool. ...
...use access keys are locale-dependent, they're not documented in this page. opening and closing tools these shortcuts work in the main browser window to open the specified tool. the same shortcuts will work to close tools hosted in the toolbox, if the tool is active. for tools like the browser console that open in a new window, you have to close the window to close the tool. ...
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XUL Migration Guide - Archive of obsolete content
if your add-on only needs a little help from those techniques, and can accomplish most of what it needs using the supported apis, then it might still be worth migrating: we'll add more supported apis in future releases to meet important use cases. user interface components xul-based add-ons typically implement a user interface using a combination of two techniques: xul overlays and xul windows. xul overlays xul overlays are used to modify existing windows such as the main browser window. in this way an extension can integrate its user interface into the browser: for example, adding menu items, buttons, and toolbars. because sdk-based extensions are restartless, they can't use xul overlays. to add user interface components to the browser, there are a few different options. in order ...
...different options. in order of complexity, the main options are: the sdk includes modules that implement some basic user interface components including buttons, dialogs, and context menu items. there is a collection of community-developed modules that includes various user interface components. by using the sdk's low-level apis you can directly modify the browser chrome. xul windows xul windows are used to define completely new windows to host user interface elements specific to the add-on. the sdk generally expects you to specify your user interface using html, not xul. however, you can include a chrome.manifest file in your add-on and it will be included in the generated xpi. my-addon/ chrome/ content/ locale/ skin/ chrome.manifest d...
... be included in the generated xpi. my-addon/ chrome/ content/ locale/ skin/ chrome.manifest data/ lib/ package.json there are limitations on what you can do in this manifest file: for example, you can't register overlays, resource: uris, or components. however, you can register a chrome: uri, with a skin and locale, and this means you can include xul windows in an sdk-based add-on. you can keep the "chrome.manifest" file in your add-on's root directory and create a directory there called "chrome". in that directory you can keep your "content", "locale", and "skin" subdirectories: this allows you to refer to objects in these directories from "chrome.manifest" using a relative path, like "chrome/content". this is provided only as a migration aid, a...
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Theme changes in Firefox 2 - Archive of obsolete content
removed from firefox 2. preferences/general.xul - removed from firefox 2. safebrowsing/warning-overlay.xul safebrowsing/browser-protection.css new file containing the overlay that's drawn over the browser when you browse to a suspected phishing site. search/enginemanager.xul enginemanager.css new file containing the ui for the search engine manager window. toolkit/mozapps/preferences/fontscaling.xul - removed from firefox 2. changes to the default theme the table below lists all the changes made in the default theme for firefox 2; you can use this information as a starting point for figuring out the changes you need to make. file description of change browser/bookmarks/addbookmark.css updated to incl...
... browser/dropmark-nav-small.png new file; used as the drop-down menu arrow on the navigation buttons, when using small icons. browser/dropmark-nav.png new file; used as the drop-down menu arrow on the navigation buttons. browser/enginemanager.css new file; css used for the search engine manager. browser/feeds/addfeedreader.css new file; css used for the window to add a new feed reader. browser/feeds/feedicon.png new file; the rss feed icon. browser/feeds/feedicon16.png new file; the 16x16 pixel version of the rss feed icon. browser/feeds/subscribe.css new file; css used for the window to subscribe to a news feed. browser/go-rtl.png new file; go icon to use if it's positioned at the left end of the url fie...
...feed icon. browser/feeds/feedicon16.png new file; the 16x16 pixel version of the rss feed icon. browser/feeds/subscribe.css new file; css used for the window to subscribe to a news feed. browser/go-rtl.png new file; go icon to use if it's positioned at the left end of the url field. browser/preferences/preferences.css file that skins the preferences window. browser/safebrowsing/browser-protection.css new file; css for the window that appears to warn the user that a site may be fraudulent, as well as the url bar icon that indicates a site may be fraudulent. browser/safebrowsing/close16x16.png new file; this is the icon displayed in the safe browsing warning window as a close box for the window. browser/safebrowsing/d...
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Observer Notifications
fter any profile migration. profile-after-change this is fired after all the observers for profile-do-change have been notified. you can register with nsicategorymanager to receive this notification. prior to firefox 3.5, this was available to observers observing the app-startup/xpcom-startup notification. final-ui-startup triggered just before the first window for the application is displayed. sessionstore-windows-restored sent by the session restore process to indicate that all initial browser windows have opened. note that while the window are open and the chrome loaded the tabs in the windows may still be being restored after this notification. note: this notification is specific to firefox and seamonkey 2.0 applications ...
... indicate interesting things that happen that the browser alerts you to. topic description browser:purge-session-history sent when the sanitizer runs to purge all history and other information. browser:purge-domain-data sent after domain-specific history and other information have been purged. the data value is a string form of the domain. ...
...ic description browser:purge-session-history sent when the sanitizer runs to purge all history and other information. browser:purge-domain-data sent after domain-specific history and other information have been purged. the data value is a string form of the domain. browser-lastwindow-close-requested sent when the browser wishes to close the last open browser window. ...
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Sidebar - Archive of obsolete content
this page provides several snippets demonstrating how to work with the firefox sidebar. see the creating a firefox sidebar tutorial for step-by-step instructions on creating a firefox sidebar extension. opening and closing the sidebar firefox provides a built-in sidebarui object function defined in browser-sidebar.js. this means that the function is available in all browser windows. you can use this function to show, hide, or toggle sidebars. // toggle the bookmarks sidebar (close it if it's open or // open it if it's currently closed) sidebarui.toggle("viewbookmarkssidebar"); // show the history sidebar, whether it's hidden or already showing sidebarui.show("viewhistorysidebar"); // hide the sidebar, if one is showing sidebarui.hide(); avoid opening the sidebar on startup. users have ...
...re extensions try to open their sidebars on startup, the user will see a flurry of sidebars opening and closing with which ever extension going last "winning". web panels sidebar content such as web pages can be safely loaded as sidebar in the "viewwebpanelssidebar". bookmarks with "load this bookmark in sidebar" checked in the properties open in the "viewwebpanelssidebar". a web page can use window.sidebar to create bookmark with that property. to open a page in the "viewwebpanelssidebar" from chrome code (browser/addon/extension) such as from menuitem, it can call: openwebpanel(atitle, auri); accessing the sidebar from a browser.xul script the sidebar content is always in a document separate from the main browser document (the sidebar is actually implemented as a xul browser element). t...
... such as from menuitem, it can call: openwebpanel(atitle, auri); accessing the sidebar from a browser.xul script the sidebar content is always in a document separate from the main browser document (the sidebar is actually implemented as a xul browser element). this means you can't directly access the sidebar content from a script referenced from a browser.xul overlay. ...
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How to convert an overlay extension to restartless - Archive of obsolete content
some of that will have to be replaced and the rest will need to be loaded differently. ...
...s webpages to detect installed add-ons using the protocol, which is not particularly fantastic (just the static file contents, not any loaded script/data). step 2a: load your jsm from chrome:// now with that preface out of the way, this part is easy: drop support for firefox 3.x if you haven't already, move your jsm files to wherever you've got your chrome mapping to for your xul overlay and/or windows, import your files from that new chrome mapped path instead of the old resource one, and remove your "resource" line from your chrome.manifest file. it's probably a good idea to do this even if you aren't going fully restartless / extractionless due to the previously mentioned exposure to content of resource mappings. also, drop support for firefox 4 through 9 while you're at it. prior to firef...
...soft, adopted by mozilla and other vendors, and hacked into a swiss army knife of file loading. you can use it in a web page to fetch a file from your server and you can use it in your add-on to fetch a local file from your installation. the name is a vestigial structure that just makes things confusing. it is nonetheless the "correct" and best way to do things. ...
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Handling Preferences - Archive of obsolete content
« previousnext » preferences in firefox mozilla applications are highly customizable. preferences are used to store settings and information to change their default behavior. to open the preferences window in firefox, select the following from the main menu: on windows, tools > options on mac, firefox > preferences on linux, edit > preferences note: keep in mind the usage of the terms "preferences" and "options" in different platforms. if you need to refer to the term "preference" in any of your locale files, you must change the string depending on the operating system. tip: you can use window.navigator.platform in your chrome code to figure out the operating system firefox is running on. you can use the hidden dom window in non-chrome code. firefox loads user preferences fr...
... file to override other settings. lockfile settings: these preferences are stored in a file that usually has the name mozilla.cfg or netscape.cfg. the file may be located on a network. it is intended to be used by an administrator or isp to set settings centrally. in addition, certain preferences may be locked such that users cannot change them. locked preferences are disabled in the preferences window. firefox exposes its most common high-level preferences through the preferences window and other parts of its ui. in reality there are thousands of other preferences firefox handles that are not readily available to the user. these are hidden because they are too advanced or obscure for regular users to manage, and because the preferences window should be as easy to use as possible. to access a...
...eferences. then, create the observer method: observe : function(asubject, atopic, adata) { if ("nspref:changed" == atopic) { let newvalue = asubject.getintpref(adata); // do something. ...
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Embedding Mozilla in a Java Application using JavaXPCOM - Archive of obsolete content
la is embedded, the java application can work with xpcom objects. the mozilla class provides several methods to facilitate this, such as getservicemanager, getcomponentmanager, and newlocalfile. in addition to retrieving and calling methods on xpcom objects, javaxpcom allows the java application to pass java class objects to xpcom methods. ...
...lication can work with xpcom objects. the mozilla class provides several methods to facilitate this, such as getservicemanager, getcomponentmanager, and newlocalfile. in addition to retrieving and calling methods on xpcom objects, javaxpcom allows the java application to pass java class objects to xpcom methods. ...
...s. the mozilla class provides several methods to facilitate this, such as getservicemanager, getcomponentmanager, and newlocalfile. in addition to retrieving and calling methods on xpcom objects, javaxpcom allows the java application to pass java class objects to xpcom methods. ...
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Eclipse CDT
reenabling "automatically update the index". however, you may find this too disruptive, since re-indexing will then happen very frequently and code assistance can be broken while the index is rebuilding. the alternative is to leave that option disabled and update the index manually as necessary. to update the index manually, use the context menu in the project explorer tab on the left side of the window. to rebuild for changes in an individual directory (for example, to take account of some changes that you yourself made) select "index > freshen all files" on that directory. to rebuild the entire index (for example when you pull from mozilla-central) select "index > rebuild" on the project root. usage tips below are some of the more useful user tips. (if you're thinking of adding tips, please ...
...ng tips, please first consider how widely useful they'll be before adding to this already lengthy page.) for further documentation see the official eclipse user guide and eclipse cdt user guide. keyboard shortcuts regarding key bindings (keyboard shortcuts), the bindings given below are the defaults. you can change the key bindings by opening the workspace preferences (eclipse > preferences, or window > preferences) and selecting "general > keys". you can set the scheme to "emacs" or "microsoft visual studio" if that's your thing, or change individual key bindings. when changing individual key bindings, note that bindings are context sensitive and that any changes you make may be ignored if they conflict with existing bindings, or if they are overridden by a binding for a more specific context...
...e current editor view (the editor must be focused first). to tab to another view, use cmd-f7/ctrl-f7. this is useful if you have maximized the editor using ctrl-m and you want to quickly see your search results. for example, without un-maximizing the editor. to side-by-side edit the same file in two different tabs, select the tab of the file that you want to edit, then from the menu bar select "window > new editor". this will open another tab containing the same file. now simply drag that tab to position it beside, above, or below the original. changes you make in one editor will be immediately reflected in the other. note that the search, call hierarchy, and other tabs have a "pin" button that allows you to open multiple tabs of these type. this is useful if you want to keep your existing se...
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nsIWinTaskbar
widget/public/nsiwintaskbar.idlscriptable represents a service that exposes the apis provided by the microsoft windows taskbar. 1.0 66 introduced gecko 1.9.2 inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) starting with windows 7, applications gain some control over their appearance in the taskbar. by default, there is a single taskbar preview per top level window (excluding pop-ups). this preview is represented by an nsitaskbarwindowpreview object. an application can register its own "tab" previews. these previews automatically hide the corresponding nsitaskbarwindowpreview. these don't have to correspond to tabs within the application; they can vary in size, shape, and location. they don't even have to r...
...warning: this api has undergone changes that are not yet documented. among these is the addition of the method getoverlayiconcontroller(). this method is currently known to crash if used under certain conditions. ...
...warning: this api has undergone changes that are not yet documented. among these is the addition of the method getoverlayiconcontroller(). this method is currently known to crash if used under certain conditions. ...
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IDBFactory - Web APIs
you open — that is, create and access — and delete a database with this object, and not directly with idbfactory. note: this feature is available in web workers. methods idbfactory.open the current method to request opening a connection to a database. idbfactory.deletedatabase a method to request the deletion of a database. idbfactory.cmp a method that compares two keys and returns a result indicating which one is greater in value. ...
...thod that returns a list of all available databases, including their names and versions. example in the following code snippet, we make a request to open a database, and include handlers for the success and error cases. for a full working example, see our to-do notifications app (view example live.) // in the following line, you should include the prefixes of implementations you want to test. ...
... list of all available databases, including their names and versions. example in the following code snippet, we make a request to open a database, and include handlers for the success and error cases. for a full working example, see our to-do notifications app (view example live.) // in the following line, you should include the prefixes of implementations you want to test. ...
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Using IndexedDB - Web APIs
can be found on the request object). with these big concepts under our belts, we can get to more concrete stuff. creating and structuring the store using an experimental version of indexeddb in case you want to test your code in browsers that still use a prefix, you can use the following code: // in the following line, you should include the prefixes of implementations you want to test. ...
... request object). with these big concepts under our belts, we can get to more concrete stuff. creating and structuring the store using an experimental version of indexeddb in case you want to test your code in browsers that still use a prefix, you can use the following code: // in the following line, you should include the prefixes of implementations you want to test. ...
... with these big concepts under our belts, we can get to more concrete stuff. creating and structuring the store using an experimental version of indexeddb in case you want to test your code in browsers that still use a prefix, you can use the following code: // in the following line, you should include the prefixes of implementations you want to test. ...
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Adding Toolbars and Toolbar Buttons - Archive of obsolete content
romeclass-toolbar-additional" label="&xulschoolhello.helloworld.label;" tooltiptext="&xulschoolhello.helloworld.tooltip;" oncommand="xulschoolchrome.browseroverlay.dosomething(event);" /> <!-- more buttons here. --> </toolbarpalette> <!-- more overlay stuff. --> </overlay> one detail that is easy to overlook is the fact that the toolbarpalette element is outside of the window element. if you put the toolbarpalette element inside the window element in your overlay, some weird errors will begin to happen. always set the label and tooltiptext attributes of a toolbarbutton. in the case of a toolbaritem element (discussed later), use the title attribute instead of label. tooltips are very important for users that want to know what a button does before clicking it. sett...
...ore buttons to the toolbar palette. the user can now use the customize dialog to add the buttons to the current firefox toolbars. in most cases this is not what you want as default behavior, because it would be very hard for the user to discover your buttons. keep in mind most users don't know how to customize toolbars in firefox. let's add our own toolbar. this is done in the overlay as well. ...
...he toolbar palette. the user can now use the customize dialog to add the buttons to the current firefox toolbars. in most cases this is not what you want as default behavior, because it would be very hard for the user to discover your buttons. keep in mind most users don't know how to customize toolbars in firefox. let's add our own toolbar. this is done in the overlay as well. ...
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Strategies for carrying out testing - Learn web development
ted guesses you could call these "assumptions", or "gut feelings". this is not an accurate, scientific approach, but as someone who has experience with the web industry you'll have a pretty good idea of at least some of the browsers you should test. this can form a good basis for a support chart. for example, if you live in western europe or north america, you will know that a lot of people use windows and mac desktops/laptops, where the main browsers are chrome, firefox, safari, ie, and edge. you probably want to just test the latest versions of the first three, as these browsers receive regular updates. for edge and ie, you probably want to test the last couple of versions; these should all go in the a grade tier. note: you can only have one version of ie or edge installed on a machine at ...
...e old android stock browser, and chrome and firefox for ios and android. you should ideally test these on both a phone and a tablet, to make sure that responsive designs are working ok. you might also know that a number of people still use ie 9. this is old and less capable, so let's put it in the b grade tier. this gives us the following support chart so far: a grade: chrome and firefox for windows/mac, safari for mac, edge and ie for windows (last two versions of each), ios safari for iphone/ipad, android stock browser (last two versions) on phone/tablet, chrome and firefox for android (last two versions) on phone tablet b grade: ie 9 for windows c grade: n/a if you live somewhere else, or are working on a site that will serve somewhere else (e.g. certain countries, or locales), then ...
...ons that you should probably include as well. you should definitely include accessibility as a grade a testing requirement (we'll cover exactly what you should test in our handling common accessibility problems article) plus you might have other considerations. ...
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about:memory
cit calls to heap allocation functions (such as malloc and new) and to non-heap allocations functions (such as mmap and virtualalloc). here is an example for a browser session where tabs were open to cnn.com, techcrunch.com, and arstechnica.com. various sub-trees have been expanded and others collapsed for the sake of presentation. ...
...re tabs were open to cnn.com, techcrunch.com, and arstechnica.com. various sub-trees have been expanded and others collapsed for the sake of presentation. ...
...1%) ++ (18 tiny) │ │ └───4.39 mb (02.29%) -- js-zone(0x7f69425b5800) │ ├──15.75 mb (08.21%) ++ top(http://techcrunch.com/, id=20) │ ├──12.85 mb (06.69%) ++ top(http://arstechnica.com/, id=14) │ ├───6.40 mb (03.33%) ++ top(chrome://browser/content/browser.xul, id=3) │ └───3.59 mb (01.87%) ++ (4 tiny) ├───45.74 mb (23.84%) ++ js-non-window ├───33.73 mb (17.58%) ── heap-unclassified ├───22.51 mb (11.73%) ++ heap-overhead ├────6.62 mb (03.45%) ++ images ├────5.82 mb (03.03%) ++ workers/workers(chrome) ├────5.36 mb (02.80%) ++ (16 tiny) ├────4.07 mb (02.12%) ++ storage ├────2.74 mb (01.43%) ++ startup-cache └────2.16 mb (01.12%) ++ xpconnect some expertis...
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nsIWebProgressListener
transition through as they are being loaded. these flags are mutually exclusive. for any given request, onstatechange() is called once with the state_start flag, zero or more times with the state_transferring flag or once with the state_redirecting flag, and then finally once with the state_stop flag. note: for document requests, a second state_stop is generated (see the description of state_is_window for more details). constant value description state_start 0x00000001 this flag indicates the start of a request. this flag is set when a request is initiated. the request is complete when onstatechange() is called for the same request with the state_stop flag set. state_redirecting 0x00000002 this flag indicates that a request is being redirected. the...
...e nsichannel interface and its loadflags attribute includes the nsichannel::load_document_uri flag. a document request does not complete until all requests associated with the loading of its corresponding document have completed. this includes other document requests (for example corresponding to html <iframe> elements). ...
...if activity only occurs in a child nsiwebprogress instance, then this flag will be set to indicate the start and stop of that activity. ...
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Plug-in Basics - Plugins
ces applications that range from personal information managers to games the range of possibilities for using plug-in technology seems boundless, as shown by the growing numbers of independent software vendors who are creating new and innovative plug-ins. with the plug-in api, you can create dynamically loaded plug-ins that can: register one or more mime types draw into a part of a browser window receive keyboard and mouse events obtain data from the network using urls post data to urls add hyperlinks or hotspots that link to new urls draw into sections on an html page communicate with javascript/dom from native code you can see which plug-ins are installed on your system and have been properly associated with the browser by consulting the installed plug-ins page. go to the help m...
...ns. when the user opens a page that contains embedded data of a media type that invokes a plug-in, the browser responds with the following sequence of actions: check for a plug-in with a matching mime type load the plug-in code into memory initialize the plug-in create a new instance of the plug-in gecko can load multiple instances of the same plug-in on a single page, or in several open windows at the same time. if you are browsing a page that has several embedded realaudio clips, for example, the browser will create as many instances of the realplayer plug-in as are needed (though of course playing several realaudio files at the same time would seldom be a good idea). when the user leaves the page or closes the window, the plug-in instance is deleted. when the last instance of a plug-...
...okup, which means that they are not related to any particular plug-in instance. again, see initialization and destruction for more information about initializing and destructing. the browser calls the plug-in api function npp_new when the instance is created. multiple instances of the same plug-in can exist (a) if there are multiple embedded objects on a single page, or (b) if several browser windows are open and each displays the same data type. a plug-in instance is deleted when a user leaves the instance's page or closes its window; gecko calls the function npp_destroy to inform the plug-in that the instance is being deleted. when the last instance of a plug-in is deleted, the plug-in code is unloaded from memory. gecko calls the function np_shutdown. plug-ins consume no resources (othe...
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IDBVersionChangeEvent.newVersion - Web APIs
code snippet, we make a request to open a database, and include handlers for the success and error cases. these events are fired via the custom idbversionchangeevent interface. for a full working example, see our to-do notifications app (view example live.) var note = document.queryselector("ul"); // in the following line, you should include the prefixes of // implementations you want to test. ...
...ake a request to open a database, and include handlers for the success and error cases. these events are fired via the custom idbversionchangeevent interface. for a full working example, see our to-do notifications app (view example live.) var note = document.queryselector("ul"); // in the following line, you should include the prefixes of // implementations you want to test. ...
...n a database, and include handlers for the success and error cases. these events are fired via the custom idbversionchangeevent interface. for a full working example, see our to-do notifications app (view example live.) var note = document.queryselector("ul"); // in the following line, you should include the prefixes of // implementations you want to test. ...
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IDBVersionChangeEvent - Web APIs
, and include handlers for the success and error cases. upon a version change (after an upgradedneeded event), the success event will implement the idbversionchangeevent interface. for a full working example, see our to-do notifications app (view example live.) var note = document.queryselector("ul"); // in the following line, you should include the prefixes of implementations you want to test. ...
...ers for the success and error cases. upon a version change (after an upgradedneeded event), the success event will implement the idbversionchangeevent interface. for a full working example, see our to-do notifications app (view example live.) var note = document.queryselector("ul"); // in the following line, you should include the prefixes of implementations you want to test. ...
...and error cases. upon a version change (after an upgradedneeded event), the success event will implement the idbversionchangeevent interface. for a full working example, see our to-do notifications app (view example live.) var note = document.queryselector("ul"); // in the following line, you should include the prefixes of implementations you want to test. ...
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Viewport concepts - CSS: Cascading Style Sheets
that is, the part of the document you are viewing. ...
...e size of the viewport depends on the size of the screen, whether the browser is in fullscreen mode or not, and whether or not the user zoomed in. content outside the viewport, such as the see also section in this document, is likely to not be visible onscreen until scrolled into view. on larger monitors where applications aren't necessarily full screen, the viewport is the size of the browser window. on most mobile devices and when the browser is in fullscreen mode, the viewport is the entire screen. in fullscreen mode, the viewport is the device screen, the window is the browser window, which can be as big as the viewport or smaller, and the document is the website, which can be much taller or wider than the viewport. to recap, the viewport is basically the part of the document that is ...
... in fullscreen mode, the viewport is the device screen, the window is the browser window, which can be as big as the viewport or smaller, and the document is the website, which can be much taller or wider than the viewport. to recap, the viewport is basically the part of the document that is currently visible. viewport sizes are mutable the width of the viewport is not always the width of the window. ...
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Event reference
ample, mozilla-specific events are listed so that add-ons can use them to interact with the browser. most common categories resource events event name fired when error a resource failed to load. abort the loading of a resource has been aborted. load a resource and its dependent resources have finished loading. beforeunload the window, the document and its resources are about to be unloaded. unload the document or a dependent resource is being unloaded. network events event name fired when online the browser has gained access to the network. offline the browser has lost access to the network. focus events event name fired when ...
...events event name fired when abort a dom request is aborted, i.e. using abortcontroller.abort(). ...
...devicemotion deviceorientation orientationchange smartcard events icccardlockerror iccinfochange smartcard-insert smartcard-remove stkcommand stksessionend cardstatechange sms and ussd events delivered received sent ussdreceived frame events mozbrowserclose mozbrowsercontextmenu mozbrowsererror mozbrowsericonchange mozbrowserlocationchange mozbrowserloadend mozbrowserloadstart mozbrowseropenwindow mozbrowsersecuritychange mozbrowsershowmodalprompt mozbrowsertitlechange dom mutation events domattributenamechanged domattrmodified domcharacterdatamodified domcontentloaded domelementnamechanged domnodeinserted domnodeinsertedintodocument domnoderemoved domnoderemovedfromdocument domsubtreemodified touch events touchcancel touchend touchmove touchstart pointer events pointerover pointeren...
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Content Scripts - Archive of obsolete content
t in a separate file and load it using contentscriptfile. this makes your code easier to maintain, secure, debug and review. you can load multiple scripts by passing an array of strings to either contentscript or contentscriptfile: // main.js var tabs = require("sdk/tabs"); tabs.on('ready', function(tab) { tab.attach({ contentscript: ['document.body.style.border = "5px solid red";', 'window.alert("hi");'] }); }); // main.js var data = require("sdk/self").data; var pagemod = require("sdk/page-mod"); pagemod.pagemod({ include: "*.mozilla.org", contentscriptfile: [data.url("jquery.min.js"), data.url("my-content-script.js")] }); if you do this, the scripts can interact directly with each other, just like scripts loaded by the same web page. you can also use contentscript and...
...th it. "ready": load the scripts after the dom for the page has been loaded: that is, at the point the domcontentloaded event fires. at this point, content scripts are able to interact with the dom content, but externally-referenced stylesheets and images may not have finished loading. "end": load the scripts after all content (dom, js, css, images) for the page has been loaded, at the time the window.onload event fires. the default value is "end". note that tab.attach() doesn't accept contentscriptwhen, because it's generally called after the page has loaded. passing configuration options the contentscriptoptions is a json object that is exposed to content scripts as a read-only value under the self.options property: // main.js var tabs = require("sdk/tabs"); tabs.on('ready', function...
...end". note that tab.attach() doesn't accept contentscriptwhen, because it's generally called after the page has loaded. passing configuration options the contentscriptoptions is a json object that is exposed to content scripts as a read-only value under the self.options property: // main.js var tabs = require("sdk/tabs"); tabs.on('ready', function(tab) { tab.attach({ contentscript: 'window.alert(self.options.message);', contentscriptoptions: {"message" : "hello world"} }); }); any kind of jsonable value (object, array, string, etc.) can be used here. accessing the dom content scripts can access the dom of a page, of course, just like any scripts that the page has loaded (page scripts). but content scripts are insulated from page scripts: content scripts don't see any ...
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widget - Archive of obsolete content
nchored: data = require("sdk/self").data var clockpanel = require("sdk/panel").panel({ width:215, height:160, contenturl: data.url("clock.html") }); require("sdk/widget").widget({ id: "open-clock-btn", label: "clock", contenturl: data.url("history.png"), panel: clockpanel, onclick: function() { // will not be anchored this.panel.show(); } }); see bug 638142. private windows if your add-on has not opted into private browsing, then your widget will not appear in any private browser windows. to learn more about private windows, how to opt into private browsing, and how to support private browsing, refer to the documentation for the private-browsing module. examples for conciseness, these examples create their content scripts as strings and use the contentscript pr...
... contentscriptoptions object read-only value exposed to content scripts under self.options property. any kind of jsonable value (object, array, string, etc.) can be used here. optional. widget represents a widget object. methods destroy() removes the widget from the add-on bar.
... an event listener with the widget. parameters type : string the type of event to listen for. listener : function the listener function that handles the event. removelistener(type, listener) unregisters an event listener from the widget. parameters type : string the type of event for which listener was registered. listener : function the listener function that was registered. getview(window) retrieve a widgetview instance of this widget relative to a browser window. parameters window : browserwindow the browserwindow instance to match. returns widgetview : a widgetview instance associated with the browser window. any changes subsequently applied to this object will only be applied to the widget attached to that window. properties label the widget's label. read-only. conten...
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JavaScript Object Management - Archive of obsolete content
...
...ny javascript object, at any moment you want. this is an odd, but powerful feature that comes in handy at times when things get complicated. for instance, you could replace a method in any object in the firefox chrome, so that it behaves differently than how it normally does. this should be a last resort option, but it is very useful at times. you usually need only one js file to control a xul window, since the code required is normally not that much. if you have complex behavior that requires too much code, look for ways to divide it into multiple objects and files. you can include as many scripts in a xul window as you need. to initialize your chrome objects, it's usually better to run the initialization code from the "load" event handler for the window. the load event is fired after the d...
...e code required is normally not that much. if you have complex behavior that requires too much code, look for ways to divide it into multiple objects and files. you can include as many scripts in a xul window as you need. to initialize your chrome objects, it's usually better to run the initialization code from the "load" event handler for the window. the load event is fired after the dom on the window has loaded completely, but before it's displayed to the user. this allows you to manipulate and possibly change elements in the window without the user noticing the changes. /** * controls the browser overlay for the hello world extension. */ 〈namespace〉.browseroverlay = { /** * initializes this object. */ init : function(aevent) { this._stringbundle = document.getelementby...
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NPN_SetValue - Archive of obsolete content
the browser of variable information controlled by the plugin. syntax #include <npapi.h> nperror npn_setvalue(npp instance, nppvariable variable, void *value); parameters the function has the following parameters: instance pointer to the plugin instance setting the variable. ...
...ariable information controlled by the plugin. syntax #include <npapi.h> nperror npn_setvalue(npp instance, nppvariable variable, void *value); parameters the function has the following parameters: instance pointer to the plugin instance setting the variable. ...
...nformation controlled by the plugin. syntax #include <npapi.h> nperror npn_setvalue(npp instance, nppvariable variable, void *value); parameters the function has the following parameters: instance pointer to the plugin instance setting the variable. ...
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Performance best practices for Firefox front-end engineers
the cost of doing these style calculations is proportional to the number of dom nodes in the document (and the number of styles being applied). it is expected that over time, script will update the dom, requiring us to recalculate styles. normally, the changes to the dom just result in the standard style calculation occurring immediately after the javascript has finished running during the 16ms window, inside the "style" step. that's the ideal scenario. however, it's possible for script to do things that force multiple style calculations (or style flushes) to occur synchronously during the javascript part of the 16 ms window. the more of them there are, the more likely they'll exceed the 16ms frame budget. if that happens, some of them will be postponed until the next frame (or possibly multi...
...and avoiding synchronous reflow below). to avoid this: avoid reading style information if you can. if you must read style information, do so at the very beginning of the frame, before any changes have been made to the dom since the last time a style flush occurred. ...
...wever, bug 1434376 has recently landed some chromeonly helpers to the window binding to make this simpler. if you want to queue up some javascript to run after the next "natural" style and layout flush, try: // suppose we want to get the computed "display" style of some node without // causing a style flush. we could do it this way: async function nodeisdisplaynone(node) { let display = await window.promisedocumentflushed(() => { // do _not_ under any circumstances write to the dom in one of these // callbacks! return window.getcomputedstyle(node).display; }); return display == "none"; } see detecting and avoiding synchronous reflow for a more advanced example of getting layout information, and then setting it safely, without causing flushes. promisedocumentflushed is o...
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ui/sidebar - Archive of obsolete content
experimental enables you to create sidebars. a sidebar is a vertical strip of user interface real estate for your add-on that's attached to the left-hand side of the browser window. you specify its content using html, css, and javascript, and the user can show or hide it in the same way they can show or hide the built-in sidebars. usage creating, showing, and hiding sidebars you construct a sidebar object using the sidebar() constructor. once you've done that, you can show the sidebar by calling the sidebar's show() method. if a new window is opened from a window that has a sidebar visible, the new window gets a sidebar, too. you can hide the sidebar by calling its hide() method. called with no arguments, show() and hide() will operate on the currently active window. from firefox 33 on...
...) constructor. once you've done that, you can show the sidebar by calling the sidebar's show() method. if a new window is opened from a window that has a sidebar visible, the new window gets a sidebar, too. you can hide the sidebar by calling its hide() method. called with no arguments, show() and hide() will operate on the currently active window. from firefox 33 onwards you can pass a browserwindow into these methods, and they will then operate on the specified window. alternatively, the view->sidebar submenu in firefox will contain a new item which the user can use to show or hide the sidebar: the sidebar generates a show event when it is shown and a hide event when it is hidden. once you've finished using the sidebar you can destroy it by calling its dispose() method. to show what a s...
...ing <script> and <link> tags containing a path relative to the html file itself. <!doctype html> <html> <head> <link href="stuff.css" type="text/css" rel="stylesheet"> </head> <body> <script type="text/javascript" src="stuff.js"></script> </body> </html> you can update the sidebar's content by setting the sidebar's url property. this will change the sidebar's content across all windows. communicating with sidebar scripts you can't directly access your sidebar's content from your main add-on code, but you can send messages between your main add-on code and scripts loaded into your sidebar. on the sidebar end of the conversation, sidebar scripts get a global variable addon that contains a port for sending and receiving messages. on the add-on side, you need to get a worker o...
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NPN_GetValue - Archive of obsolete content
npnvariable variable, void *value); parameters this function has the following parameters: instance pointer to the current plug-in instance. variable information the call gets. ...
...ble variable, void *value); parameters this function has the following parameters: instance pointer to the current plug-in instance. variable information the call gets. ...
... *value); parameters this function has the following parameters: instance pointer to the current plug-in instance. variable information the call gets. ...
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Command line crash course - Learn web development
...
...applications. macos macos has a system called darwin that sits underneath the graphical user interface. darwin is the unix-like system, which provides the terminal, and access to the low-level tools. macos darwin mostly has parity with unix, certainly good enough to not cause us any worries as we work through this article. the terminal is available on macos at applications/utilities/terminal. ...
...al user interface. darwin is the unix-like system, which provides the terminal, and access to the low-level tools. macos darwin mostly has parity with unix, certainly good enough to not cause us any worries as we work through this article. the terminal is available on macos at applications/utilities/terminal. windows as with some other programming tools, using the terminal (or command line) on windows has traditionally not been as simple or easy as on other operating systems. but things are getting better. windows has traditionally had its own terminal-like program called cmd (“the command prompt”) for a long time, but this definitely doesn’t have parity with unix commands, and is equivalent to the old-style windows dos prompt. better programs exist for providing a terminal experienc...
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Obsolete Build Caveats and Tips
formation, it's best to collect them all here and remove them from the majority happy path documentation. each piece of information should mention the page and the section it originally came from. you can copy in the original text and bold out what has been removed. ...
...3/mozilla 1.9 and earlier can check out the latest source using cvs. in reality, you should probably not need to do this, since that code is very obsolete. this note below seems redundant as this is true by default https://msdn.microsoft.com/en-us/library/dh8che7s%28v=vs.110%29.aspx note: starting with gecko 7.0, you should no longer include "-zc:wchar_t-" in the command line when building on windows. if you're using visual studio, go to project properties > c/c++ > language > treat wchar_t as built-in type and set it to "yes". from source_code/mercurial mozilla-2.0 (firefox 4.0) code for the firefox 4.0 (gecko 2.0) release lives in releases/mozilla-2.0. to get this code, do the following: # pull the mozilla source to the folder 20src/ - may take a while # as hundreds of megabytes of ...
.../mozilla-1.9.1. to get this code, do the following: # pull the mozilla source to the folder 191src/ - may take a while # as hundreds of megabytes of history is downloaded to .hg hg clone https://hg.mozilla.org/releases/mozilla-1.9.1/ 191src cd 191src note: starting with gecko 5.0, you can actually build firefox without a .mozconfig file. by default, a similar-to-release build is done. from windows_sdk_versions visual c++ 9 (vs2008) professional/express download and install the windows 7 sdk. note that you need service pack 1--for the express edition it is a separate download. visual c++ 8 (vs2005) professional download and install the windows 7 sdk. install this microsoft hotfix to allow linking to work correctly. visual c++ 7.1 or visual c++ 8 (vs2005) express these versions ...
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IME handling guide
ime is a helper application of a user's text input. it handles native key events before or after focused application (depending on the platform) and creates a composition string (a.k.a. preedit string), suggests a list of what the user attempts to input, commits composition string as a selected item off the list and commits composition string without any conversion. ...
...nsaction (it was called imetexttxn) sets ime selections for representing the clauses of the composition string. when editorbase receives an ecompositionend (dom "compositionend") event, it releases the stored textcomposition instance. nstextframe nstextframe paints ime selections. mozilla::imecontentobserver imecontentobserver observes various changes of a focused editor. when an editor or a windowless plugin gets focus, an instance is created, starts to observe and notifies widget of ime getting focus. when the editor or windowless plugin loses focus, it notifies widget of ime losing focus, stops observing everything and is released. this class observes selection changes (caret position changes), text changes of a focused editor and layout changes (by reflow or scroll) of everything in th...
...one or more dom events and/or new reflow. therefore, imecontentobserver only stores which notification should be sent to widget and/or ime. then, mozilla::imecontentobserver::imenotificationsender tries to send the pending notifications when it might become safe to do that. currently, it's tried: after a native event is dispatched from presshell::handleeventinternal() at changing focus from a windowless plugin when new focused editor receives dom "focus" event the 3rd timing may not be safe actually, but it causes a lot of oranges of automated tests. see also notifications to ime section for the detail of sending notifications. currently, widgetquerycontentevent is handled via imecontentobserver because if it has a cache of selection, it can set reply of equeryselectedtext event only ...
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nsIAppStartup
introduced gecko 1.8 inherits from: nsisupports last changed in gecko 9.0 (firefox 9.0 / thunderbird 9.0 / seamonkey 2.6) implemented by: @mozilla.org/toolkit/app-startup;1. ...
...isupports last changed in gecko 9.0 (firefox 9.0 / thunderbird 9.0 / seamonkey 2.6) implemented by: @mozilla.org/toolkit/app-startup;1. ...
... in gecko 9.0 (firefox 9.0 / thunderbird 9.0 / seamonkey 2.6) implemented by: @mozilla.org/toolkit/app-startup;1. ...
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nsIWebContentHandlerRegistrar
8.0 / seamonkey 2.5) implemented by @mozilla.org/embeddor.implemented/web-content-handler-registrar;1 as a service: var nsiwchr = cc["@mozilla.org/embeddor.implemented/web-content-handler-registrar;1"] .getservice(ci.nsiwebcontenthandlerregistrar); method overview void registercontenthandler(in domstring mimetype, in domstring uri, in domstring title, in nsidomwindow contentwindow) void registerprotocolhandler(in domstring protocol,in domstring uri, in domstring title, in nsidomwindow contentwindow) methods registercontenthandler summary of registercontenthandler void registercontenthandler( in domstring mimetype, in domstring uri, in domstring title, in nsidomw...
...w) void registerprotocolhandler(in domstring protocol,in domstring uri, in domstring title, in nsidomwindow contentwindow) methods registercontenthandler summary of registercontenthandler void registercontenthandler( in domstring mimetype, in domstring uri, in domstring title, in nsidomwindow contentwindow ); parameters mimetype the desired mime type as a string uri the uri to the handler as a string. title the title of the handler presented to the user as a string. contentwindow the dom content window from which the method has been called. registerprotocolhandler summary of registerprotocolhandler void registerprotocolhandler( in domstring protocol, in domstring uri, in domst...
... uri the uri to the handler as a string. ...
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page-mod - Archive of obsolete content
fy: one or more scripts to attach. the sdk calls these scripts "content scripts". a pattern that a page's url must match, in order for the script(s) to be attached to that page. ...
...ing, don't use contentscript: if you do, you may have problems getting your add-on approved on amo. instead, keep the script in a separate file and load it using contentscriptfile. this makes your code easier to maintain, secure, debug and review. a page-mod only attaches scripts to documents loaded in tabs. it will not attach scripts to add-on panels, page-workers, sidebars, or firefox hidden windows. to stop a page-mod from making any more modifications, call its destroy() method. the pagemod constructor takes a number of other options to control its behavior: contentstyle lists stylesheets to attach, supplied as strings. contentstylefile lists stylesheets to attach, supplied in separate files. contentscriptoptions defines read-only values accessible t...
...if you are maintaining a list of workers belonging to a page-mod, you can use this event to remove workers that are no longer valid. for example, if you maintain a list of workers attached to a page-mod: var workers = []; var pagemod = require("sdk/page-mod").pagemod({ include: ['*'], contentscriptwhen: 'ready', contentscriptfile: data.url('pagemod.js'), onattach...
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private-browsing - Archive of obsolete content
check whether a given object is private, so an add-on can respect private browsing usage per-window private browsing private browsing status is a property of an individual browser window. the user enters private browsing by opening a new private browser window. when they do this, any existing non-private windows are kept open, so the user will typically have both private and non-private windows open at the same time. ...
...rivate windows are kept open, so the user will typically have both private and non-private windows open at the same time. ...
...rivate and non-private windows open at the same time. ...
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Chapter 4: Using XPCOM—Implementing advanced processes - Archive of obsolete content
roduce the dialog shown in figure 1. this can get annoying. to run the file's scripts without manual confirmation, add the contents of listing 3 to the prefs.js file in the user profile folder. opening test.xul will show the local file url in the location bar. copy and paste this into the appropriate spot in listing 3. note: the location of the user profile will vary depending on your system. ...
...ontents of listing 3 to the prefs.js file in the user profile folder. opening test.xul will show the local file url in the location bar. copy and paste this into the appropriate spot in listing 3. note: the location of the user profile will vary depending on your system. on windows vista, it will be located at c:\users\username\appdata\roaming\mozilla\firefox\profiles\random number.default\ ; on windows xp or 2000, it will be c:\documents and settings\username\application data\mozilla\firefox\profiles\random number.default\ ; on linux, it will be ~/.mozilla/firefox/random number.default/ ; on mac os x, it will be ~/library/application support/firefox/profiles/random number.default/ in the interests of security, delete these lines from prefs.js after finishing these tests. note that firefox it...
...hat are used especially frequently. you should be able to get the gist of how xpcom is used by looking at the sample code. you can paste almost all the sample code in this chapter into your existing test.xul file to try it out. feel free to fill in blank spots as you see fit. make sure to change file paths to match your own environment. you can download the source code used in this chapter. get window while you can use javascript to get child windows opened from the parent window, you cannot get dialogs or windows that have no relation to that window. to overcome this limitation, nsiwindowmediator makes it possible to access all of firefox's windows. get active window one thing that nsiwindowmediator is often used for is to get the active window. listing 4 shows how to get the active browse...
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Migrate apps from Internet Explorer to Mozilla - Archive of obsolete content
xist, you should use the onload event handler on the <body> tag: <body onload="dofinish();"> <div id="foo">loading...</div> <script> function dofinish() { var element = document.getelementbyid("foo"); element.innerhtml = "done."; } </script> ... such timing-related issues are also hardware-related -- slower systems can reveal bugs that faster systems hide. ...
... event handler on the <body> tag: <body onload="dofinish();"> <div id="foo">loading...</div> <script> function dofinish() { var element = document.getelementbyid("foo"); element.innerhtml = "done."; } </script> ... such timing-related issues are also hardware-related -- slower systems can reveal bugs that faster systems hide. one concrete example is window.open, which opens a new window: <script> function doopenwindow(){ var mywindow = window.open("about:blank"); mywindow.location.href = "http://www.ibm.com"; } </script> the problem with the code is that window.open is asynchronous -- it does not block the javascript execution until the window has finished loading. therefore, you may execute the line after the window.open line before the new window has finished. y...
... differences in javascript-generating html javascript can, through document.write, generate html on the fly from a string. the main issue here is when javascript, embedded inside an html document (thus, inside an <script> tag), generates html that contains a <script> tag. ...
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Tamarin build documentation - Archive of obsolete content
tamarin source versions the following instructions are for obtaining and building the tamarin central source code. for instructions on tamarin tracing, please see tamarin tracing build documentation. supported platforms tamarin currently supports the following operating systems and/or architectures. windows 32 and 64 bit mac osx 10.4, 10.5 on ppc mac osx 10.5, 10.6 on intel linux 32 and 64 bit solaris 10 on sparc android 2.2 on arm windows mobile 6.5 mips (linux) sh4 (linux) getting the tamarin source the tamarin source resides in mercurial at tamarin central. active development source resides at tamarin redux. in this document replace instances of tamarin-central with tamarin-redux to operate in the redux repository. use the following command to create a copy of the ...
...der your sdk/ndk top folder. make sure its name is just "openssl". then build as follows: - replace the makefile in the main folder with the one attached to this page. - change the variable android_device in the makefile (near line 65) to point to your sdk/ndk top folder. - find the two instances of "android-ndk" and make sure they match your ndk's name (they should already). - in a terminal window change to your /openssl folder and run make build_libs to create the necessary 'libcrypto.a' and 'libssl.a' static libraries. alternatively, run make, in which case the process will complete with errors when it tries to create the shared lib crt0.o: $ /android-public/android-ndk/toolchains/arm-eabi-4.4.0/prebuilt/darwin-x86/bin/../lib/gcc/arm-eabi/4.4.0/../../../../arm-eabi/bin/ld: crt0.o: no s...
...(gnu make 3.80 does not work. nor does any other brand of make.) setup: if you normally work in a cygwin mounted place (eg /home/user/...) then you must cd around to the cygdrive path equivalent (eg /cygdrive/c/cygwin/home/user/). setup the shell environment with the following environment variables: # note: the incl...
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Menus - Archive of obsolete content
priate locations automatically. there are four elements that a menupopup can be attached to. in each case, the menupopup element is placed as a direct child of the element. the following is a brief summary of these elements, examples of each will be provided later. menu the menu tag is used when placing menus on a menu bar. for example, the file and edit menus along the top of an application window (or the menubar on the top of screen). this type of menu is usually used for commands that apply to the entire application. commands that don't apply at a given time should be disabled. however, the actual top level menus do not generally change for a given window. button a menu may be attached to a button by setting the type attribute of the button to 'menu'. instead of creating a standard but...
...it should contain menu elements. menu a label of a menu on a menubar, for instance 'file' or 'tools'. a menu can also be used as the label of a submenu. menupopup a popup containing items to appear on a menu. the menupopup in the example above is a child of the 'file' menu and will appear when the menu label is clicked. menuitem a single item to appear on a menu. when th...
...he example above, the 'file' menu has four menuitems and one menuseparator on it. the menu and each menuitem has a label indicating its purpose. other types of tags should not appear on a menupopup. if you want to create a general purpose popup that isn't a menu, use a panel instead. for this, see panels. the menubar element a menu bar is created by using the xul menubar tag. ...
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XPCOM Examples - Archive of obsolete content
« previousnext » this section provides some examples of using xpcom along with some additional interfaces. window management this example contains rdf datasource that will be seen in the later section. you might skip this example for the time being, except when you have already had that knowledge. creating a window menu the list of currently open mozilla windows can be used as an rdf datasource. this allows you to create a window menu with a list of the currently open windows in the application. the datasource for this is rdf:window-mediator. ...
...time being, except when you have already had that knowledge. creating a window menu the list of currently open mozilla windows can be used as an rdf datasource. this allows you to create a window menu with a list of the currently open windows in the application. the datasource for this is rdf:window-mediator. we can use this as in the following example: example 1 : source <toolbox> <menubar id="windowlist-menubar"> <menu label="window"> <menupopup id="window-menu" datasources="rdf:window-mediator" ref="nc:windowmediatorroot"> <template> <rule> <menuitem uri="rdf:*" label="rdf:http://home.netscape.com/nc-rdf#name"/> </rule> </template> </menupopup> </menu> </menubar> </toolbox> a window menu will be created with a list of all the open windows. try this exampl...
...dow"> <menupopup id="window-menu" datasources="rdf:window-mediator" ref="nc:windowmediatorroot"> <template> <rule> <menuitem uri="rdf:*" label="rdf:http://home.netscape.com/nc-rdf#name"/> </rule> </template> </menupopup> </menu> </menubar> </toolbox> a window menu will be created with a list of all the open windows. try this example by opening a number of browser windows and you'll see that they are all listed on the menu. window mediator component this is fine for displaying a list of open windows, but we would like to enhance this so that clicking on the menu item will switch to that window. this is accomplished by using the window mediator component. it implements the interface nsiwindowdatasource. the code below shows how to get a component which implements ...
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XUL Questions and Answers - Archive of obsolete content
locked for security reasons." that error is from a security check that has been put up to safeguard against cross-site-scripting attacks. a scheme is in development to allow servers to open up their site for cross-site access, but that's not yet done. hidechrome="true" doesn’t work on a mac? unfortunately, no simple solution to this was posted. ...
...urity reasons." that error is from a security check that has been put up to safeguard against cross-site-scripting attacks. a scheme is in development to allow servers to open up their site for cross-site access, but that's not yet done. hidechrome="true" doesn’t work on a mac? unfortunately, no simple solution to this was posted. ...
...new window using "window.open" and send titlebar=”no” as one of the flags in the 3rd argument. is it possible to have checkbox support for multi column lists? the current issue is a person exploring if it is possible to have checkbox support for multi column lists. the following is the code they wrote: <?xml version="1.0"?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <window id="test-window" title="check list test" xmlns:html="http://www.w3.org/1999/xhtml" xmlns="http://www.mozilla.org/keymaster/gat...re.is.only.xul"> <listbox rows="4"> <listhead> <listheader label="multi-column"/> </listhead> <listcols> <listcol flex="1"/> </listcols> <listitem> <listcell type="checkbox" value="1" label="vghkvghk"/> </listitem> <listitem> <listcell ...
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Getting started with XULRunner - Archive of obsolete content
he mozilla build system. if you need to change xulrunner itself or integrate it with external binaries you may need to read that article. step 1: download xulrunner you can find a download link on the main xulrunner page here on mdn. since we are not creating any binary xpcom components, we only need to download and install the xulrunner runtime package, not the sdk. the xulrunner download for windows is a zip file, not a true install. as a developer, i like the idea that xulrunner only needs to be unzipped onto my machine. i am assuming that it doesn’t need to hook into my windows system and that’s a good thing. it also means that the xulrunner is portable so, if you develop your applications to be portable you could carry them around on a flash drive or sync them in the cloud. the mac ...
...ux-$arch.tar.bz2 cd /opt sudo sh -c "wget -o- $xurl | tar -xj" sudo ln -s /opt/xulrunner/xulrunner /usr/bin/xulrunner sudo ln -s /opt/xulrunner/xpcshell /usr/bin/xpcshell you could also save this script to a file for convenience. note: if you are using firefox build from ubuntuzilla repository, replace /usr/lib/firefox/platform.ini with /opt/firefox/platform.ini. step 2: install xulrunner on windows, unzip the archive someplace reasonable. i unzipped it to a new c:\program files\xulrunner folder. on the mac, extract the tar.bz2 archive, which contains xulrunner as xul.framework. copy this to the /library/frameworks directory, or another location of your choice. on linux, you only need to unpack the archive if you are using a pre-release xulrunner. in all systems you should unzip the om...
...w can be found in the xulrunner documentation here on mdn in much more detail. hint: skip ahead and download the sample application, you can experiment with it while following this tutorial. you can download the sample application from https://github.com/matthewkastor/xulrunner-examples. please continue reading to learn the "what", "why" and "how" parts of building a xulrunner application. on windows, i created the root in a new c:\program files\myapp folder, but you can create it wherever you like, using whatever os you like. the same application structure is used on windows, mac and linux. here is the subfolder structure: + myapp/ | +-+ chrome/ | | | +-+ content/ | | | | | +-- main.xul | | | | | +-- main.js | | | +-- chrome.manifest | +-+ defaults/ | | | +-+ preferences/ | | | +-- pre...
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NPEvent - Archive of obsolete content
« gecko plugin api reference « plug-in side plug-in api summary represents an event passed by npp_handleevent() to a windowless plug-in. ...
... « gecko plugin api reference « plug-in side plug-in api summary represents an event passed by npp_handleevent() to a windowless plug-in. ...
...sents an event passed by npp_handleevent() to a windowless plug-in. ...
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Anatomy of a video game - Game development
called on a strict interval of time, every frame, or only after something else happens. being more specific with the browser about when your function needs to be called allows the browser to optimize when it is called. also, it will probably make your job easier. ...
...frame-by-frame so why attach that function to anything other than the browser's redraw schedule? on the web, window.requestanimationframe() will be the foundation of most well-programmed per-frame main loops. a callback function must be passed in to it when it is called. that callback function will be executed at a suitable time before the next repaint. here is an example of a simple main loop: window.main = function () { window.requestanimationframe( main ); // whatever your main loop needs to do }; main(); // start the cycle note: in each of the main() methods discussed here, we schedule a new requestanimationframe before performing our loop contents. that is not by accident and it is considered best practice. calling the next requestanimationframe early ensures the browser receives ...
...r your main loop needs to do }; main(); // start the cycle note: in each of the main() methods discussed here, we schedule a new requestanimationframe before performing our loop contents. that is not by accident and it is considered best practice. calling the next requestanimationframe early ensures the browser receives it on time to plan accordingly even if your current frame misses its vsync window. the above chunk of code has two statements. the first statement creates a function as a global variable called main(). this function does some work and also tells the browser to call itself next frame with window.requestanimationframe(). the second statement calls the main() function, defined in the first statement. because main() is called once in the second statement and every call of it pla...
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Plug-in Development Overview - Gecko Plugin API Reference
up the media type, and if it finds a plug-in registered to that type, loads the plug-in software. when it starts up, the browser checks for plug-in modules for the platform and registers them. it determines which plug-ins are installed and which types they support through a combination of user preferences that are private to the browser, the contents of the plug-ins directory, or the registry on windows. a mime type is made up of a major type (such as application or image) and a minor type, for example, image/jpeg. if you define a new mime type for a plug-in, you must register it with ietf (internet engineering task force). until your new mime type is registered, preface its name with "x-", for example, image/x-nwim. for more information about mime types, see these mime rfcs: rfc-2045: "mul...
...ultipurpose internet mail extensions (mime) part one: format of internet message bodies" rfc-2046: "multipurpose internet mail extensions (mime) part two: media types" rfc-4288: "media type specifications and registration procedures" there are some variations to how plug-ins are handled on different platforms. the following sections describe platform-specific discovery and registration: ms windows unix mac os x ms windows on windows, plug-ins are found according to the section how gecko finds plug-ins. to determine the mime types and file extensions that the plug-in handles, the browser normally uses the content of the registry entries for the plug-in described below in installation using the registry. but when the plug-in is loaded from a well-known directory, a different method m...
... the mime types and file extensions that the plug-in handles, the browser normally uses the content of the registry entries for the plug-in described below in installation using the registry. but when the plug-in is loaded from a well-known directory, a different method must be used. in this case to ensure the plug-in file will be loaded, it should have a name in the form of "np*.dll". also, the windows version information for the plug-in dll will be used to determines the mime types, file extensions, file open template, plug-in name, and description. for this the version stamp of the embedded resource of the plug-in dll should contain the following set of string/value pairs: mimetype: for mime types fileextents: for file extensions fileopenname: for file open template productname: for p...
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Accessibility API cross-reference
a part of the main document. application frame n/a application see <div> and <nonstruct> a region that contains mostly site-oriented content, rather than page-specific content. ...
...> containing <toci> elements (which are wrappers for internal hyperlinks in such a table). for an index, use <index> with a <l>(list) inside. no default semantics in html, but semantics and other accessibility features may be provided with aria. see also span n/a n/a n/a <div> <div> but if you need custom semantic structure, use <nonstruct> instead window that corresponds to an mdi document. in aria, used to nest browsable rich text content inside interactive content document n/a n/a document document a drop down list, different from combobox droplist n/a n/a listbox for math & chemistry equation n/a n/a math a scrollable list of articles ...
...cell in a grid or treegrid. grid a composite widget containing a collection of one or more rows with one or more cells where some or all cells in the grid are focusable by using methods of two-dimensional navigation, such as directional arrow keys, e.g. a spreadsheet. gridcell a type of mouse pointer used for resizing windows grip n/a n/a n/a probably a group box (titledbox in mozilla) grouping panel panel group <fieldset>, <div> a heading for a section of the page. in aria, the heading level is expressed with the aria-level attribute. heading <h1> ... <h6> <h1> ... <h6>. <h> is also available but its use is not recommen...
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HTTP logging
rs during startup, or you're running on mobile, etc. in that case you can set environment variables *before* you launch firefox. note that this approach winds up logging the whole browser history, so files can get rather large (they compress well :) setting environment variables differs by operating system. don't let the scary-looking command line stuff frighten you off; it's not hard at all! windows if firefox is already running, exit out of it. open a command prompt. on windows xp, you can find the "run..." command in the start menu's "all programs" submenu. on all newer versions of windows, you can hold down the windows key and press "r". type cmd and press enter, a new command prompt window with a black background will appear. copy and paste the following lines one at a time into t...
... already running, exit out of it. open a command prompt. on windows xp, you can find the "run..." command in the start menu's "all programs" submenu. on all newer versions of windows, you can hold down the windows key and press "r". type cmd and press enter, a new command prompt window with a black background will appear. copy and paste the following lines one at a time into the command prompt window. ...
...on windows xp, you can find the "run..." command in the start menu's "all programs" submenu. on all newer versions of windows, you can hold down the windows key and press "r". type cmd and press enter, a new command prompt window with a black background will appear. copy and paste the following lines one at a time into the command prompt window. ...
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Overview of Mozilla embedding APIs
of registered xpcom components to be instantiated. the embedding layer consists of several components built on top of xpcom and its services. much of the gecko functionality is exposed through a component called the nswebbrowser. embedding applications can leverage this component to easily access many of gecko's features. each webbrowser instance represents the "client-area" of a typical browser window. the webbrowser exposes a set of interfaces which allow the embedding application to control activity and respond to changes within this client area. using these interfaces an embedding application can build up its own user interface around a webbrowser instance. public classes the following utility classes are available from the xpcom dll. they provide some basic functionality which should be l...
...ing the class factories used for component creation... contract-id: ns_componentmanager_contractid implemented interfaces: nsicomponentmanager nsiinterfacerequestor requestor interfaces: nsiservicemanager related interfaces: nsifactory nsuriloader the nsuriloader service is responsible for targeting a uri at an appropriate content handler. a content handler may be an existing or new window, a helper application or the unknown content handler - if no other handler can be found for the content-type. contract-id: ns_uri_loader_contractid implemented interfaces: nsiuriloader related interfaces: nsiuricontentlistener nsunknowncontenttypehandler the unknowncontenttypehandler service is the last resort of the uriloader when no other content handler can be located. if no registered...
...ent_loader_service_contractid implemented interfaces: nsiwebprogress nsidocumentloader related interfaces: nsiwebprogresslistener public components nswebbrowser the nswebbrowser is the main embedding component which gecko exposes. conceptually, each nswebbrowser instance represents a html content area. conceptually, for each document being rendered, gecko creates a container called a domwindow. each webbrowser exposes a tree of domwindows - representing the frame hierarchy for the current document. as such, access to individual document frames is done via the domwindow interfaces. manipulation of the entire document structure is done via the various webbrowser interfaces. contract-id: ns_webbrowser_contractid implemented interfaces: nsiwebbrowser nsiwebnavigation nsiwebbrowserse...
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OS.File for the main thread
llowing snippet obtains the path to file "sessionstore.js", contained in the user's profile directory. let sessionstore = os.path.join(os.constants.path.profiledir, "sessionstore.js"); // under linux, this is generally "$home/.firefox/profiles/$profilename/sessionstore.js" // under macos, this is generally "$home/library/application support/firefox/$profilename/sessionstore.js" // under windows, this is generally "%appdata%\local\temp\%profilename%"\sessionstore.js // etc. example: determine if a file is a directory the following snippet determines if some path represents a file or a directory: let promise = os.file.stat(somepath); promise = promise.then( function onsuccess(stat) { if (stat.isdir) { // the path represents a directory } else { // the path r...
... be opened for reading. depending on other fields, it may also be opened for writing. write if true, the file will be opened for writing. depending on other fields, it may also be opened for reading. prior to gecko 27, unless create or truncate are set or explicit unixflags are given, the file will be opened for appending on unix/linux. however, the file is not opened for appending on windows. see bug 924858. starting with gecko 27, you may use the append flag instead. for an example using append see here. truncate | trunc if true, the file will be opened for writing. if the file does not exist, it will be created. if the file exists, its contents will be removed. cannot be used with create. create if true, file will be opened for writing. the file must not exist. if th...
...ntents of mode. you can build these flags from values os.constants.libc.o_*. unixmode (ignored under non-unix platforms) if specified, file creation mode, as per libc function open. if unspecified, files are created with a default mode of 0600 (file is private to the user, the user can read and write). you can build this mode from values os.constants.libc.s_i*. ...
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Embedded Dialog API
posing gecko dialogs in embedding applications problem statement an application embedding gecko cannot tightly control its own windows and still allow gecko to be a fully functional web browser. in any single window, gecko can be expected to play nicely within its given boundaries. but it must be allowed to create additional windows at times perhaps unexpected by the containing appliction. these new windows can be entire new browser windows opened in response to web page script, or dialogs or alerts which may arise from script or merely during normal operation of the browser. part of gecko's embedding api is callbacks into the embedding application for creating new windows. the complete windowing portion of the api is large and complex, but it need not be entirely implemented. its simp...
...gecko can use the latter to pose dialogs built from xul. xul dialogs are part of the gecko package; they are the default dialog posing mechanism. ...
...gecko can use the latter to pose dialogs built from xul. xul dialogs are part of the gecko package; they are the default dialog posing mechanism. many embedding applications will find them entirely sufficient. ...
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Components.utils.cloneInto
this function provides a safe way to take an object defined in a privileged scope and create a structured clone of it in a less-privileged scope. it returns a reference to the clone: var clonedobject = cloneinto(myobject, targetwindow); you can then assign the clone to an object in the target scope as an expando property, and scripts running in that scope can access it: targetwindow.foo = clonedobject; in this way privileged code, such as an add-on, can share an object with less-privileged code like a normal web page script. syntax components.utils.cloneinto(obj, targetscope[, options]); parameters obj : object the object to clone. targetscope : object the object to attach the object to. options : object this optional parameter is an object with the following opt...
...nts.utils.exportfunction. see cloning objects that have functions below. wrapreflectors: a boolean value that determines if objects reflected from c++, such as dom objects, should be cloned. if omitted the default value is false. see cloning objects that contain dom elements below. returns a reference to the cloned object. ...
...that have functions below. wrapreflectors: a boolean value that determines if objects reflected from c++, such as dom objects, should be cloned. if omitted the default value is false. see cloning objects that contain dom elements below. returns a reference to the cloned object. ...
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amIWebInstallListener
ed by websites. the default implementation displays a confirmation dialog when add-ons are ready to install and uses the observer service to notify when installations are blocked. ...
...bsites. the default implementation displays a confirmation dialog when add-ons are ready to install and uses the observer service to notify when installations are blocked. ...
...llations are blocked. 1.0 66 introduced gecko 2.0 inherits from: nsisupports last changed in gecko 8.0 (firefox 8.0 / thunderbird 8.0 / seamonkey 2.5) method overview boolean onwebinstallblocked(in nsidomwindow awindow, in nsiuri auri, [array, size_is(acount)] in nsivariant ainstalls, [optional] in pruint32 acount); void onwebinstalldisabled(in nsidomwindow awindow, in nsiuri auri, [array, size_is(acount)] in nsivariant ainstalls, [optional] in pruint32 acount); boolean onwebinstallrequested(in nsidomwindow awindow, in nsiuri auri, [array, size_is(acount)] in nsivariant ainstalls, [optional] in pruint32 acount); note: prior to gecko 8.0, all references to nsidomwindow used in this interface were nsidomwindowinternal. methods onwebi...
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Index
matching the email, the icon will not appear. if there is a card, but no screenname, the icon will not appear. and finally, if there is no icon, the icon will not appear. the reason this file name scheme was chosen was is this is how netscape 7.0 im stores buddy icons on disk. so if you use nim, and you use buddy icons, this will just work for free. notes: 16 cached compose window faq seth spitzer (sspitzer@mozilla.org) what is the "cached" compose window? instead of destroying the mail compose window on send (or close) just to create a new one the next time, mozilla mail will "cache" the compose window on send (or close), and use that instead. the downsides are that we have had some bugs, it complicates and bloats the code, and it requires more testing. the...
...l compose window on send (or close) just to create a new one the next time, mozilla mail will "cache" the compose window on send (or close), and use that instead. the downsides are that we have had some bugs, it complicates and bloats the code, and it requires more testing. the upside is that is has been a major performance win why did you do this? back 0.9.7, we hit a wall with the compose window. any new window performance problems that mozilla has are especially painful in mail compose, as we need to create a new compose window on every new mail message or reply. but we noticed that the common usage pattern is to compose, send, compose, send, compose send. we decided it would be worth the trouble to cache the compose window. if the user has this usage pattern, we wouldn't have to...
...dow performance problems that mozilla has are especially painful in mail compose, as we need to create a new compose window on every new mail message or reply. but we noticed that the common usage pattern is to compose, send, compose, send, compose send. we decided it would be worth the trouble to cache the compose window. if the user has this usage pattern, we wouldn't have to create a new window. we could just hide it on send, and then show it on the next compose. if the user opens (but never sends or closes compose windows), this trick will not apply to them. but this is not a common usage model. how do i test it? on window and mac, the cached compose window is on by default. to test it 17 content tabs thunderbird content tabs enable thunderbird to display r...
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Plug-in Development Overview - Plugins
up the media type, and if it finds a plug-in registered to that type, loads the plug-in software. when it starts up, the browser checks for plug-in modules for the platform and registers them. it determines which plug-ins are installed and which types they support through a combination of user preferences that are private to the browser, the contents of the plug-ins directory, or the registry on windows. a mime type is made up of a major type (such as application or image) and a minor type, for example, image/jpeg. if you define a new mime type for a plug-in, you must register it with ietf (internet engineering task force). until your new mime type is registered, preface its name with "x-", for example, image/x-nwim. for more information about mime types, see these mime rfcs: rfc-2045: "mul...
...ultipurpose internet mail extensions (mime) part one: format of internet message bodies" rfc-2046: "multipurpose internet mail extensions (mime) part two: media types" rfc-4288: "media type specifications and registration procedures" there are some variations to how plug-ins are handled on different platforms. the following sections describe platform-specific discovery and registration: ms windows unix mac os x ms windows on windows, plug-ins are found according to the section how gecko finds plug-ins. to determine the mime types and file extensions that the plug-in handles, the browser normally uses the content of the registry entries for the plug-in described below in installation using the registry. but when the plug-in is loaded from a well-known directory, a different method m...
... the mime types and file extensions that the plug-in handles, the browser normally uses the content of the registry entries for the plug-in described below in installation using the registry. but when the plug-in is loaded from a well-known directory, a different method must be used. in this case to ensure the plug-in file will be loaded, it should have a name in the form of "np*.dll". also, the windows version information for the plug-in dll will be used to determines the mime types, file extensions, file open template, plug-in name, and description. for this the version stamp of the embedded resource of the plug-in dll should contain the following set of string/value pairs: mimetype: for mime types fileextents: for file extensions fileopenname: for file open template productname: for p...
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URLs - Plugins
pecified items on a gopher server. obsolete since gecko 2.0 http (hypertext transfer protocol) locates resources on the internet. javascript executes javascript code that follows the url. netscape-specific. mailto (electronic mail address) locates the internet mailing address of an individual or service. nethelp displays a nethelp topic in a nethelp window. browser-specific. news (usenet news) locates usenet news groups or individual usenet articles. nntp (usenet news using nntp access) locates usenet news groups or individual usenet articles; alternate to news. prospero (prospero directory service) locates a resource on a prospero directory server. telnet (reference to interactive sessions) locates a...
...stry. getting urls posting urls getting urls to retrieve a url and display it on a specified target page, use the npn_geturl, npn_geturlnotify, and npp_urlnotify functions. this section describes the methods and procedures used for getting the url and displaying the page. the plug-in uses the npn_geturl function to ask the browser to display data retrieved from a url in a specified target window or frame, or deliver it to the plug-in instance in a new stream. this is the way that plug-ins provide hyperlinks to other documents or retrieve data from the network. if the browser cannot locate the url and retrieve the data, it does not create a stream for the instance; in this case, the plug-in receives notification of the result. to request a stream and receive notification of the result in...
...ied upon either successful or unsuccessful completion of the request. nperror npn_geturl(npp instance, const char *url, const char *target); the instance parameter represents the current plug-in instance. the url parameter is the url of the request, which can be of any type, including http, ftp, news, or mailto. the target parameter represents the destination where the url will be displayed, a window or frame. if target refers to the window or frame containing the plug-in instance, it is destroyed and the plug-in may be unloaded. if the target parameter is set to null, the application creates a new stream and delivers the data to the plug-in instance, through calls to npp_newstream, npp_writeready and npp_write, and npp_destroystream. in general, if a url works in the location box of the nav...
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DevTools API - Firefox Developer Tools
ns of page inspector and debugger that may be used currently. introduction the devtools api provides a way to register and access developer tools in firefox. in terms of user interface, each registered tool lives in its own tab (we call one tab a panel). these tabs are located in a box we call a toolbox. a toolbox can be hosted within a browser tab (at the bottom or on the side), or in its own window (we say that the toolbox is undocked). a toolbox (and all the tools it contains) is linked to a target, which is the object the tools are debugging. a target is usually a web page (a tab), but can be other things (a chrome window, a remote tab,…). in terms of code, each tool has to provide a tooldefinition object. a definition is a js light object that exposes different information about the t...
...led a toolpanel. the toolpanel is built only when the tool is selected (not when the toolbox is opened). there is no way to "close/destroy" a toolpanel. the only way to close a toolpanel is to close its containing toolbox. all these objects implement the eventemitter interface. api gdevtools the gdevtools api can be used to register new tools, themes and handle toolboxes for different tabs and windows. to use the gdevtools api from an add-on, it can be imported with following snippet const { gdevtools } = require("resource:///modules/devtools/gdevtools.jsm"); methods registertool(tooldefinition) registers a new tool and adds a tab to each existing toolbox. parameters: tooldefinition {tooldefinition} - an object that contains information about the tool. see tooldefinition for detai...
...target [, toolid [, hosttype [, hostoptions]]]) opens a toolbox for given target either by creating a new one or activating an existing one. parameters: target {target} - the target the toolbox will debug. toolid {string} - the tool that should be activated. if unspecified the previously active tool is shown. hosttype {string} - the position the toolbox will be placed. one of bottom, side, window, custom. see hosttype for details. hostoptions {object} - an options object passed to the selected host. see hosttype for details. return value: a promise that is fulfilled with the toolbox instance once it has been initialized and the selected tool is loaded. gettoolbox(target) fetch the toolbox object for the given target. parameters: target {target} - the target the toolbox is deb...
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Element.classList - Web APIs
ed. the following polyfill for both classlist and domtokenlist ensures full compliance (coverage) for all standard methods and properties of element.prototype.classlist for ie10-ie11 browsers plus nearly compliant behavior for ie 6-9. check it out: // 1. ...
...ensures full compliance (coverage) for all standard methods and properties of element.prototype.classlist for ie10-ie11 browsers plus nearly compliant behavior for ie 6-9. check it out: // 1. ...
... + "' on 'domtokenlist': the token provided must not be empty." ); if((wsindex=v.search(wsre))!==-1) throw new domexception("failed to execute '"+o+"' on 'domtokenlist': " + "the token provided ('"+v[wsindex]+"') contains html space characters, which are not valid in tokens."); } // 2. ...
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EventTarget.addEventListener() - Web APIs
addeventlistener() works by adding a function or an object that implements eventlistener to the list of event listeners for the specified event type on the eventtarget on which it's called. ...
...n do this by using feature detection for each of the options you're interested in. for example, if you want to check for the passive option: let passivesupported = false; try { const options = { get passive() { // this function will be called when the browser // attempts to access the passive property. passivesupported = true; return false; } }; window.addeventlistener("test", null, options); window.removeeventlistener("test", null, options); } catch(err) { passivesupported = false; } this creates an options object with a getter function for the passive property; the getter sets a flag, passivesupported, to true if it gets called. that means that if the browser checks the value of the passive property on the options object, passivesupport...
... value of this inside a function, called by the code in the attribute value, behaves as per standard rules. this is shown in the following example: <script> function logid() { console.log(this.id); } </script> <table id="my_table" onclick="logid();"><!-- when called, `this` will refer to the global object --> ... </table> the value of this within logid() is a reference to the global object window (or undefined in the case of strict mode. specifying "this" using bind() the function.prototype.bind() method lets you specify the value that should be used as this for all calls to a given function. this lets you easily bypass problems where it's unclear what this will be, depending on the context from which your function was called. note, however, that you'll need to keep a reference to the l...
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Using the Gamepad API - Web APIs
components for rich, interactive game development. technologies like <canvas>, webgl, <audio>, and <video>, along with javascript implementations, have matured to the point where they can now support many tasks previously requiring native code. the gamepad api is a way for developers and designers to access and use gamepads and other game controllers. the gamepad api introduces new events on the window object for reading gamepad and controller (hereby referred to as gamepad) state. in addition to these events, the api also adds a gamepad object, which you can use to query the state of a connected gamepad, and a navigator.getgamepads() method which you can use to get a list of gamepads known to the page. connecting to a gamepad when a new gamepad is connected to the computer, the focused page ...
...tched to the focused page when the user presses a button or moves an axis. in firefox, gamepads are only exposed to a page when the user interacts with one with the page visible. this helps prevent gamepads being used for fingerprinting the user. once one gamepad has been interacted with, other gamepads that are connected will automatically be visible. you can use gamepadconnected like this: window.addeventlistener("gamepadconnected", function(e) { console.log("gamepad connected at index %d: %s. %d buttons, %d axes.", e.gamepad.index, e.gamepad.id, e.gamepad.buttons.length, e.gamepad.axes.length); }); each gamepad has a unique id associated with it, which is available on the event's gamepad property. disconnecting a gamepad when a gamepad is disconnected, and if a page has pre...
...tons, %d axes.", e.gamepad.index, e.gamepad.id, e.gamepad.buttons.length, e.gamepad.axes.length); }); each gamepad has a unique id associated with it, which is available on the event's gamepad property. disconnecting a gamepad when a gamepad is disconnected, and if a page has previously received data for that gamepad (e.g. gamepadconnected), a second event is dispatched to the focused window, gamepaddisconnected: window.addeventlistener("gamepaddisconnected", function(e) { console.log("gamepad disconnected from index %d: %s", e.gamepad.index, e.gamepad.id); }); the gamepad's index property will be unique per-device connected to the system, even if multiple controllers of the same type are used. the index property also functions as the index into the array returned by navigato...
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IDBFactory.open() - Web APIs
e a idbopendbrequest object on which subsequent events related to this request are fired. exceptions this method may raise a domexception of the following types: exception description typeerror the value of version is zero or a negative number or not a number. ...
... var request = window.indexeddb.open("todolist", 4); in the following code snippet, we make a request to open a database, and include handlers for the success and error cases. for a full working example, see our to-do notifications app (view example live.) var note = document.queryselector("ul"); // in the following line, you should include the prefixes // of implementations you want to test. window.indexeddb = window.indexeddb || window.mozindexeddb || window.webkitindexeddb || window.msindexeddb; // don't use "var indexeddb = ..." if you're not in a function. ...
...do notifications app (view example live.) var note = document.queryselector("ul"); // in the following line, you should include the prefixes // of implementations you want to test. window.indexeddb = window.indexeddb || window.mozindexeddb || window.webkitindexeddb || window.msindexeddb; // don't use "var indexeddb = ..." if you're not in a function. ...
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Using CSS transitions - CSS: Cascading Style Sheets
dth height background-color font-size left top transform -webkit-transformv color; transition-duration: 0.5s; transition-timing-function: ease-in-out; } function updatetransition() { var el = document.queryselector("div.box"); if (el) { el.classname = "box1"; } else { el = document.queryselector("div.box1"); el.classname = "box"; } return el; } var intervalid = window.setinterval(updatetransition, 7000); transition-duration: 1s <div class="parent"> <div class="box">lorem</div> </div> .parent { width: 250px; height:125px;} .box { width: 100px; height: 100px; background-color: red; font-size: 20px; left: 0px; top: 0px; position: absolute; -webkit-transition-property: width height background-color font-size ...
... width height background-color font-size left top transform -webkit-transform color; transition-duration: 1s; transition-timing-function: ease-in-out; } function updatetransition() { var el = document.queryselector("div.box"); if (el) { el.classname = "box1"; } else { el = document.queryselector("div.box1"); el.classname = "box"; } return el; } var intervalid = window.setinterval(updatetransition, 7000); transition-duration: 2s <div class="parent"> <div class="box">lorem</div> </div> .parent { width: 250px; height:125px;} .box { width: 100px; height: 100px; background-color: red; font-size: 20px; left: 0px; top: 0px; position: absolute; -webkit-transition-property: width height background-color font-size ...
... width height background-color font-size left top transform -webkit-transform color; transition-duration: 2s; transition-timing-function: ease-in-out; } function updatetransition() { var el = document.queryselector("div.box"); if (el) { el.classname = "box1"; } else { el = document.queryselector("div.box1"); el.classname = "box"; } return el; } var intervalid = window.setinterval(updatetransition, 7000); transition-duration: 4s <div class="parent"> <div class="box">lorem</div> </div> .parent { width: 250px; height:125px;} .box { width: 100px; height: 100px; background-color: red; font-size: 20px; left: 0px; top: 0px; position: absolute; -webkit-transition-property: width height background-color font-size ...
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content/mod - Archive of obsolete content
experimental provides functions to modify a page content. globals constructors functions attachto(modification, window) function applies given modification to a given window. for example, the following code applies a style to a content window, adding a border to all divs in page: var attachto = require("sdk/content/mod").attachto; var style = require("sdk/stylesheet/style").style; var style = style({ source: "div { border: 4px solid gray }" }); // assuming window points to the content page we want to modify attachto(style, window); parameters modification : object the modification we want to apply to the target. ...
...ontent window, adding a border to all divs in page: var attachto = require("sdk/content/mod").attachto; var style = require("sdk/stylesheet/style").style; var style = style({ source: "div { border: 4px solid gray }" }); // assuming window points to the content page we want to modify attachto(style, window); parameters modification : object the modification we want to apply to the target. window : nsidomwindow the window to be modified. detachfrom(modification, window) function removes attached modification from a given window. if window is not specified, modification is removed from all the windows it's being attached to. ...
...arameters modification : object the modification we want to apply to the target. window : nsidomwindow the window to be modified. detachfrom(modification, window) function removes attached modification from a given window. if window is not specified, modification is removed from all the windows it's being attached to. for example, the following code applies and removes a style to a content window, adding a border to all divs in page: var { attachto, detachfrom } = require("sdk/content/mod"); var style = require("sdk/stylesheet/style").style; var style = style({ source: "div { border: 4px solid gray }" }); // assuming window points to the content page we want to modify attachto(style, window); // ... ...
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Element Positioning - Archive of obsolete content
first two buttons have been given a suitable size to hold their text. the third button is larger because it contains more content. the width of the box containing the buttons is the total width of the buttons plus the padding between them. the height of the buttons is a suitable size to hold the text. width and height attributes you may need to have more control over the size of an element in a window. there are a number of features that allow you to control the size of an element. the quick way is to simply add the width and height attributes on an element, much like you might do on an html img tag. an example is shown below: example 1: source view <button label="ok" width="100" height="40"/> however, it is not recommended that you do this. it is not very portable and may not fit in with ...
...large enough to fit the contents. for flexible elements, the calculation is slightly trickier. flexible elements are those that have a flex attribute set to a value greater than 0. recall that flexible elements grow and shrink to fit the available space. their default size is still calculated the same as for inflexible elements. the following example demonstrates this: example 2 : source view <window orient="horizontal" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <hbox> <button label="yes" flex="1"/> <button label="no"/> <button label="i really don't know one way or the other"/> </hbox> </window> the window will initially appear like in the image earlier. the first two buttons will be sized at a suitable default width and the third button will be l...
...pear like in the image earlier. the first two buttons will be sized at a suitable default width and the third button will be larger because it has a longer label. the first button is made flexible and all three elements have been placed inside a box. the width of the box will be set to the initial total width of all three buttons (around 430 pixels in the image). if you increase the width of the window, elements are checked to see whether they are flexible to fill the blank space that would appear. the first button is the only flexible element, but it will not grow wider. this is because the box that the button is inside is not flexible. an inflexible element never changes size even when space is available, so the button can't grow either. thus, the button won't get wider. the solution is to m...
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Localization - Archive of obsolete content
s subdirectory. you would normally have one dtd file (with an extension .dtd) per xul file. if you look in the chrome directory, you should see an archive for your language. (en-us.jar is the default for english.) you might have locale files in multiple languages, for example, us english (en-us) and french (fr). inside these archives, you will find the files that hold the localized text for each window. the structure of the archives is very similar to the directory structure used for skins. inside the archives, you would place the dtd files in which you declare entities. typically, you will have one dtd file for each xul file, usually with the same filename except with a .dtd extension. so, for the find files dialog, we will need a file called findfile.dtd. for non-installed chrome files, you...
...ave them in utf-8 format (without bom). for more information, see mozilla language packs. once you have created a dtd file for your xul, you will need to add a line to the xul file which indicates that you want to use the dtd file. otherwise, errors will occur as it won't be able to find the entities. to do this, add a line of the following form somewhere near the top of the xul file: <!doctype window system "chrome://findfile/locale/findfile.dtd"> this line specifies that the url indicated is to be used as a dtd for the file. in this case, we have declared that we want to use the findfile.dtd dtd file. this line is typically placed just before the window element. you also need to add the locale to the chrome.manifest file, for example: locale findfile en-us locale/ declaring entities t...
...nging the find files example let's take a look at how we would put all of this together by modifying the find files dialog so that it uses a dtd file for all of its text strings. the entire xul file is shown below with the changes shown in red. ...
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XULRunner tips - Archive of obsolete content
anifest from browser/fuel/src for instance into your components/ directory tweak the line #include ../../../toolkit/components/exthelper/extapplication.js in your copy of fuelapplication.js as needed make sure to declare the fuel module and the two files in your components/makefile.in as in browser/fuel/src/makefile.in rebuild... useful chrome urls most of these require branding. ...
...ser/fuel/src for instance into your components/ directory tweak the line #include ../../../toolkit/components/exthelper/extapplication.js in your copy of fuelapplication.js as needed make sure to declare the fuel module and the two files in your components/makefile.in as in browser/fuel/src/makefile.in rebuild... useful chrome urls most of these require branding. ...
...there is a working stub. any better suggestion? venkman uses "chrome://communicator/skin/" as an alias for "chrome://global/skin/" and this alias was maintained in the xulrunner toolkit until xulrunner 1.9 was released. when using xulrunner 1.9 or greater, you can create your own alias in your chrome manifest add a "skin" line: skin communicator classic/1.0...
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Mozilla’s UAAG evaluation report
this time. this document is based on the september 12, 2001 candidate recommendation of uaag 1.0. this may be different from the most recent version, check for updates on the user agent working group home page. look to the "techniques" document for real-world implementation examples of each checkpoint. this uaag evaluation report covers nightly builds of the mozilla web browser itself, running on windows 2000, as of february 20, 2002. we are claiming to support html 4, css 2, png, jpg and gif. this evaluation does not cover mailnews or composer. there may be accessibility and customizability features not listed here. a very good resource is the customizing document. when filing mozilla bugs based on uaag requirements, please use bug 24413 as the uaag meta bug. checkpoint information (same scaled...
...ommand to toggle audio or video 3.3 toggle animated/blinking text. (p1) p the following line can be added to a user's prefs.js file to control blinking: user_pref("browser.blink_allowed", false); bug 89144 has been filed to expose this pref in the ui. mozilla doesn't support <marquee> by default. 3.4 toggle scripts. (p1) g preferences, advanced, scripts & windows - enable javascript for when toggled off, we don't notify the user when a page is loaded with scripts 3.5 toggle content refresh. (p1) ni mozilla has no features for toggling refreshes 3.6 toggle redirects. (p2) ni mozilla has no features for toggling redirects 3.7 toggle images. (p2) p our interface for image toggling needs redesign unfortuna...
... el, tr, he, ar, th, ja, zh-cn or zh-tw 4.2 configure font family. (p1) c can be changed through preferences or user style sheet the prefs are at preferences, appearances, fonts 4.3 configure text colors. (p1) vg can be changed through preferences or by editing the prefs.js file the prefs are at preferences, appearances, colors to use any color offered in windows, the prefs.js file must be edited by hand 4.4 slow multimedia. (p1) ni cannot slow animations 4.5 start, stop, pause, and navigate multimedia. (p1) na 4.6 position captions. (p1) na 4.7 slow other multimedia. (p2) na this is similar to checkpoint 4.4, except that includes animation through style cannot control animation rate of ...
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Command line options
arguments must be enclosed in quotation marks (this is noted in the option descriptions below). multiple command line options can be specified. in general, the syntax is as follows: application -option -option "argument" -option argument examples the following examples show the use of the "-profilemanager" command, which will open the profile manager prior to starting firefox or thunderbird: windows select run from windows start menu. enter the following command: firefox -profilemanager mac os x go to applications > utilities. open terminal and enter the following command: cd /applications/firefox.app/contents/macos ./firefox -profilemanager if you use firefox nightly, you can enter: cd /applications/firefoxnightly.app/contents/macos ./firefox -profilemanager linux open terminal...
.... do not run profile_dir while running an instance of the application. you can use the -no-remote option to avoid connecting to a running instance. firefox -createprofile "joeluser c:\internet\joelusers-moz-profile" note: profile_dir must not exist and you must not already have a profile called profile_name. -migration start with import wizard. -new-instance open new instance, not a new window in running instance, which allows multiple copies of application to be open at a time. firefox -new-instance -p "another profile" note: not available for windows, see bug 855899. -no-remote do not accept or send remote commands. implies -new-instance. firefox -no-remote -p "another profile" note: since firefox 9, this does really mean what its name implies on all platforms, i.e. instan...
...o/profile") or a relative path ("path/to/profile"). note: on mac os x specifying a relative path is not supported anymore from firefox 4.0 and up due to a regression, see bug 673955. browser -browser start with the browser component. firefox and seamonkey only. -foreground make this instance the active application. -new-tab url open url in a new tab. firefox and seamonkey2.x only. -new-window url open url in a new window. firefox and seamonkey2.x only. --kiosk url open url full screen without user interface. firefox 71 and later. -preferences open options/preferences window. firefox and seamonkey2.x only. -private opens firefox in permanent private browsing mode. firefox 3.6 and later only. may not be applicable in older ubuntu for firefox 20 and later, confirmed to work in 14...
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Limitations of chrome scripts
dom.ipc.shims.enabledwarnings preference and watching the browser console as you use the add-on. the rest of this page documents patterns that don't work in multiprocess firefox as well as how are shims try to paper over the problem. ...
...shims.enabledwarnings preference and watching the browser console as you use the add-on. the rest of this page documents patterns that don't work in multiprocess firefox as well as how are shims try to paper over the problem. ...
... how are shims try to paper over the problem. for each pattern we've noted: whether a shim exists and what kind of behavior it provides how to update your add-on so you don't need the shim gbrowser.contentwindow, window.content... without the shim all apis in the chrome process that provide direct access to content objects will no longer work. ...
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Split object
ment the jsextendedclass.outerobject hook, which returns a pointer to the corresponding outer object. outer objects implement the jsextendedclass.innerobject hook. but the association is not fixed. an outer object may be associated with different inner objects at different times. this feature is complicated. programs other than mozilla that embed spidermonkey should avoid using split objects. the window object split objects were introduced to resolve a problem posed by the window object. three interrelated requirements on the window object seemed to conflict. the window object is the global object for scripts in web pages. firefox has to maintain this for web compatibility. for performance, access to global properties must be fast. there is a glaring difference in the lifetime of th...
...bject split objects were introduced to resolve a problem posed by the window object. three interrelated requirements on the window object seemed to conflict. the window object is the global object for scripts in web pages. firefox has to maintain this for web compatibility. for performance, access to global properties must be fast. there is a glaring difference in the lifetime of the window object as seen from two different angles. suppose a script in page a, in tab ta, has a reference to the window object of page b in another tab tb. the window object for tab tb must persist as the user navigates from page to page in that tab. to the script in page a, the window must appear to be a single object that moves from page to page. but each web page must load with fresh globals. (the pr...
...other tab tb. the window object for tab tb must persist as the user navigates from page to page in that tab. to the script in page a, the window must appear to be a single object that moves from page to page. but each web page must load with fresh globals. (the problem is even a bit subtler than this, since the reference may be direct or indirect. the script in a might have opened tb by calling window.open, which returns a direct reference to tb's window. more indirectly, suppose there's a javascript function defined in page b that refers to global variables in page b. if page a gets a reference to that function, then by calling it, it is indirectly accessing tab tb's window. the function object carries a reference to the window, via the scope chain. to further complicate matters, a and b are ...
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Components.utils.exportFunction
an extension, can share code with less-privileged code like a normal web page script. a function exported from privileged to less-privileged code can be called from the less privileged code's context. the function has access to its surrounding closure just as if it were being called in the privileged context. the exported function does not have to be added to the less privileged code's global window object: it can be exported to any object in the target scope. exportfunction() is made available as a global in sandboxes which have the wantexporthelpers option set in the sandbox() constructor. this includes add-on sdk content scripts. to understand what happens if the functions you export accept arguments, see exporting functions that take arguments below. syntax components.utils.exportfun...
...ructor. this includes add-on sdk content scripts. to understand what happens if the functions you export accept arguments, see exporting functions that take arguments below. syntax components.utils.exportfunction(func, targetscope[, options]); parameters func : function the function to export. targetscope : object the object to attach the function to. this does not have to be the global window object: it could be any other object in the target window, or an object created by the caller. options : object optional parameter that supplies additional options. the following options are currently defined: defineas: determines the name of the function in targetscope. if this is omitted, you need to assign the return value of exportfunction() to an object in the target scope. allowcallb...
...ged scope as xrays. ...
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nsIAccessibleEvent
pports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) attributes attribute type description accessible nsiaccessible the nsiaccessible associated with the event. may return null if no accessible is available. read only. accessibledocument nsiaccessibledocument the nsiaccessibledocument that the event target nsiaccessible resides in. this can be used to get the dom window, the dom document and the window handler, among other things. read only. domnode nsidomnode the nsidomnode associated with the event. may return null if accessible for event has been shut down. read only. eventtype unsigned long the type of event, based on the enumerated event values defined in this interface. read only. isfromuserinput boolean returns true if the event was caused by expli...
...ithin a container object has been removed from the selection. event_selection_within 0x8009 0x0015 0x0012 numerous selection changes have occurred within a container object. event_alert 0x0002 0x0016 0x0013 an alert has been generated. server applications send this event when a user needs to know that a user interface element has changed. event_foreground 0x0003 0x0017 0x0014 the foreground window has changed. event_menu_start 0x0018 0x0015 a menu item on the menu bar has been selected. event_menu_end 0x0019 0x0016 a menu from the menu bar has been closed. event_menupopup_start 0x001a 0x0017 a pop-up menu has been displayed. event_menupopup_end 0x001b 0x0018 a pop-up menu has been closed. event_capture_start 0x001c 0x0019 a window has received mouse capture. event_cap...
...start 0x0018 0x0015 a menu item on the menu bar has been selected. event_menu_end 0x0019 0x0016 a menu from the menu bar has been closed. event_menupopup_start 0x001a 0x0017 a pop-up menu has been displayed. event_menupopup_end 0x001b 0x0018 a pop-up menu has been closed. event_capture_start 0x001c 0x0019 a window has received mouse capture. event_capture_end 0x001d 0x001a a window has lost mouse capture. event_movesize_start 0x001e 0x001b a window is being moved or resized. event_movesize_end 0x001f 0x001c the movement or resizing of a window has finished. event_contexthelp_start 0x0020 0x001d a window has entered context-sensitive help mode. event_contexthelp_end 0x0021 0x001e a window has exited context-sensitive help mode. event_dragdrop_start 0x0022...
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Version, UI, and Status Information - Plugins
« previousnext » this chapter describes the functions that allow a plug-in to display a message on the status line, get agent information, and check on the current version of the plug-in api and the browser. displaying a status line message users are accustomed to checking the ui status line at the bottom of the browser window for updates on the progress of an operation or the url of a link on the page. you can also use the status line to notify the user of plug-in-related information. the user might appreciate seeing the percentage completed of the current operation or the url of a button or other link object when the cursor is over it, all of which the browser shows. in fact, your plug-in interface should be consistent with the rest of the browser in this way. to accomplish t...
...tant represents a feature. the plug-in can compare the npvers constant to the version number. if the version supports the feature, the plug-in can operate according to plan. if not, the plug-in cannot use some functionality. if an essential feature is unavailable, the developer must arrange for alternative behavior, shut down the plug-in, or give the user a chance to decide what to do. ...
.... the plug-in can compare the npvers constant to the version number. if the version supports the feature, the plug-in can operate according to plan. if not, the plug-in cannot use some functionality. if an essential feature is unavailable, the developer must arrange for alternative behavior, shut down the plug-in, or give the user a chance to decide what to do. ...
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Advanced animations - Web APIs
(this.x, this.y, this.radius, 0, math.pi * 2, true); ctx.closepath(); ctx.fillstyle = this.color; ctx.fill(); } }; ball.draw(); nothing special here, the ball is actually a simple circle and gets drawn with the help of the arc() method. adding velocity now that we have a ball, we are ready to add a basic animation like we have learned in the last chapter of this tutorial. again, window.requestanimationframe() helps us to control the animation. the ball gets moving by adding a velocity vector to the position. for each frame, we also clear the canvas to remove old circles from prior frames. var canvas = document.getelementbyid('canvas'); var ctx = canvas.getcontext('2d'); var raf; var ball = { x: 100, y: 100, vx: 5, vy: 2, radius: 25, color: 'blue', draw: function...
...we need to check if the x and y position of the ball is out of the ca...
...we need to check if the x and y position of the ball is out of the canvas dimensions and invert the direction of the velocity vectors. to do so, we add the following c...
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Appendix D: Loading Scripts - Archive of obsolete content
exists on firefox 4 and other gecko 2-based platforms, the services in question will have to be manually loaded on other platforms. <script> tags xul script tags are traditionally the primary means of loading scripts for extension developers. these tags are generally inserted into xul overlay files or other xul documents, after which they are automatically loaded into the context of the xul window in question and executed immediately and synchronously. advantages familiarity: these tags are very similar to the html script tags familiar to most web developers. simplicity: the simple, declarative nature of these tags make them easy to find and understand at a glance. speed: script tags may or may not be loaded from pre-compiled bytecode in the fastload cache (gecko 1.x) or startup cach...
...rce and compiled with each restart. flexibility: script tags provide a means to specify the character set and javascript version of the scripts to be loaded, which many other methods do not. debuggable: development tools support debugging javascript loaded by script tags disadvantages scoping: scripts loaded via script tags share the global scope with all other scripts loaded into the same window. these tags provide no means to load scripts into a private or otherwise specific scope. speed: even if these scripts are loaded from a cache, only read and compile time are reduced. the scripts still need to execute all of their initialization code and allocate and initialize all of their data structures each time the script is loaded. loading: script loaded via script tags run in partially lo...
...pts still need to execute all of their initialization code and allocate and initialize all of their data structures each time the script is loaded. loading: script loaded via script tags run in partially loaded documents. problems can ensue if the script immediately attempts to access dom nodes. this is easily resolved by deferring the work to a dynamically added onload hander. (a standalone xul window can use an onload attribute.) example the following overlay will load the script “overlay.js” from the same directory as the overlay file into the window which it overlays. the script will be read with the utf-8 encoding, based on the encoding of the overlay, and will execute as javascript version 1.8, based on the version specified in the script tag. <?xml version="1.0" encoding="utf-8"?
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Venkman Introduction - Archive of obsolete content
on are available from the user interface and from console commands, letting you work in the way you are most accustomed to. the interactive console also allows for execution of arbitrary javascript code. venkman's keyboard shortcuts are the same as leading visual debugging environments, and gdb users should be familiar with venkman's /break, /step, /next, /finish, /frame, and /where commands. on windows, the javascript debugger compares favorably with visual interdev and other large web development tools. on other platforms, including mac os and unix, it is alone in offering this degree of flexibility, depth, and power in a visual debugging environment. starting the debugger the javascript debugger is automatically pre-installed in mozilla 1.x but must be installed separately in firefox and o...
...ng a hyperlink. if you don't already have venkman or would like to upgrade, you can easily get the latest version from firefox add-ons. the installation process is two steps. first, from within the browser you want to host the debugger application, visit the firefox add-ons page and click on the "install" link for the most recent version. when the download is complete, restart your browser (some windows users may also need to restart their computer as well). you can then access the debugger via a new, dynamically created menuitem in the tools menu of that browser, or else restart the browser with a special debugger option. to see which version of venkman you have, type /version in the interactive session view. for more information about the latest improvements and versions, see the venkman dev...
...rmation about this counter and the data, see item 2.2 in the venkman faq.) when you first start venkman, the basic views are arranged as in the screenshot above—though you can customize the layout and presence of the different views however you want, as we describe in the view customization section below. the scripts that have been loaded by the javascript engine appear in the loaded scripts window (for more information about how scripts are loaded and accessed in venkman, see "loading scripts into the debugger"). the menubar, toolbar, and all of the views can be collapsed or hidden, giving you a lot of control over the debugging environment. the source code view is empty until you select a script, and the interactive session view starts up with basic startup information. each of the vi...
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Popup Menus - Archive of obsolete content
...
...the exact way that a context menu is opened varies on each platform. ...
...the exact way that a context menu is opened varies on each platform. on the macintosh for example, the user can either press the control key and click the mouse button, or hold the mouse button down for a moment. ...
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Using Remote XUL - Archive of obsolete content
sed by desktop applications like mozilla but can also be loaded from a web server and rendered inside the content pane of a compatible browser. xul loaded and rendered in this way is called remote xul and can be used for basic functions like web site navigation as well as to build sophisticated web-based applications. [***aw: we should have a screenshot here of a xul document loaded in a content window***] this tutorial walks you through the process of building xul-based navigation for the mozilla.org web site. after completing the tutorial you should understand how to: create xul documents; serve them from a web server; use cascading style sheets (css) to change their appearance; use javascript to define their behavior. global web site navigation most web sites today have poor global...
...tion. <?php header('content-type: application/vnd.mozilla.xul+xml'); ?> <!-- xul markup starts here --> note that you don't need a web server for this tutorial; you can load the document you create on your computer via a "file" url or the "open file" function of your browser. step 1: a basic xul document the first thing we need to do is create a basic xul document. <?xml version="1.0"?> <window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" /> a xul document requires only two entities to be valid, an xml processing instruction on the first line that identifies the file as xml, and a window element that defines a xul application window (or in this case web page). the processing instruction is required because xul is an xml-based language, and this instruction te...
...it is analogous to the <html> element in html. ...
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Using the Editor from XUL - Archive of obsolete content
ocument loading in this <iframe>, and, when document loading is complete, it instantiates an editor on the loaded document. the <iframe> contents are then editable. note that the <editor> element is really just an <iframe> which takes over some of the task of creating the editor from javascript. editor creation so let's trace through the process of editor creation when bringing up the composer window. you can find the relevant xul parts in editor.xul, the javascript parts in editor.js, and the xbl binding for the editor element in editor.xml. something, somewhere, tells mozilla to open the composer window. editor.xul is loaded. in editor.xul, the <window> tag has an onload handler: onload="editoronload()". that causes the editoronload() javascript function to get executed when the xul i...
...oser window. editor.xul is loaded. in editor.xul, the <window> tag has an onload handler: onload="editoronload()". that causes the editoronload() javascript function to get executed when the xul is done loading. the xul contains an <editor> tag, e.g.: <editor type="content-primary" id="content-frame" src="about:blank" flex="1"/> the attribute type="content-primary" identifies this as the window content element, i.e. that which you get from window._content. having an id attribute, id="content-frame", allows us to find this element with document.getelementbyid("content-frame"), and to style it from css. editoronload() is called. ...
...ntent-primary" id="content-frame" src="about:blank" flex="1"/> the attribute type="content-primary" identifies this as the window content element, i.e. that which you get from window._content. having an id attribute, id="content-frame", allows us to find this element with document.getelementbyid("content-frame"), and to style it from css. editoronload() is called. it does some getting of window.arguments (which is a way callers can pass parameters to new windows -- we use this to get the url to be loaded), then it calls editorstartup(), where the real work happens. it passes two parameters; the first indicates whether we want a plain text or html editor (pass text or html here), and the second is the <iframe> element on which we wish to create the editor. we could either pass documen...
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Browser Detection and Cross Browser Support - Archive of obsolete content
as we already discussed, a common approach in the past was to use objects to classify browsers by vendor/version. a common type of detection which originally was written to support only netscape navigator 4 and internet explorer 4 might look like: // wrong approach - do not use! if (document.all) { // ie4 height = document.body.offsetheight; } else if (document.layers) { // nn4 height = window.innerheight; } else { // other height = 0; } with the introduction of the w3c dom, the standard method document.getelementbyid became available in internet explorer 5 and later in netscape 6 (gecko). many web authors decided that the easiest way to add support for netscape gecko was to add another code fork as follows: // wrong approach - do not use! if (document.all) { // ie4 height =...
...e w3c dom, the standard method document.getelementbyid became available in internet explorer 5 and later in netscape 6 (gecko). many web authors decided that the easiest way to add support for netscape gecko was to add another code fork as follows: // wrong approach - do not use! if (document.all) { // ie4 height = document.body.offsetheight; } else if (document.layers) { // nn4 height = window.innerheight; } else if (document.getelementbyid) { // they think this is gecko // but could be wrong! height = window.innerheight; } else { // other height = 0; } the approach is incorrect since it assumes that the only other browser besides internet explorer 5+ that implements document.getelementbyid is gecko. this is not true today and will become even less true as more browsers whi...
...the same standards may be introduced in the future. a common problem on the web today is the assumption that the only browsers in the world are netscape navigator and microsoft internet explorer. this ignores the existence of opera as well as the newer handheld devices which are being used to access the web today and in the future. mozilla-based browsers (such as firefox), internet explorer 6 on windows, and internet explorer 5 for macintosh all support doctype switching. this is a technique where these browsers can be switched from "quirks" mode (which emulates buggy implementations in earlier generation browsers) to standards mode (which more strictly adhers to the standards). for new content, we recommend that you use a doctype which will invoke standards mode in gecko and internet explorer ...
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Drawing graphics - Learn web development
emoved the width and height attributes for now (you could add them back in if you wanted, but we will set them using javascript in a below section). canvases with no explicit width and height default to 300 pixels wide by 150 pixels high. ...
...u could add them back in if you wanted, but we will set them using javascript in a below section). canvases with no explicit width and height default to 300 pixels wide by 150 pixels high. now add the following lines of javascript inside the <script> element: const canvas = document.queryselector('.mycanvas'); const width = canvas.width = window.innerwidth; const height = canvas.height = window.innerheight; here we have stored a reference to the canvas in the canvas constant. in the second line we set both a new constant width and the canvas' width property equal to window.innerwidth (which gives us the viewport width). in the third line we set both a new constant height and the canvas' height property equal to window.innerheight (which gives us the viewport height). so now we have a...
... in the canvas constant. in the second line we set both a new constant width and the canvas' width property equal to window.innerwidth (which gives us the viewport width). in the third line we set both a new constant height and the canvas' height property equal to window.innerheight (which gives us the viewport height). so now we have a canvas that fills the entire width and height of the browser window! you'll also see that we are chaining assignments together with multiple equals signs — this is allowed in javascript, and it is a good technique if you want to make multiple variables all equal to the same value. we wanted to make the canvas width and height easily accessible in the width/height variables, as they are useful values to have available for later (for example, if you want to dr...
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Mozilla accessibility architecture
s accessibility api module, which provides support for platform accessibility apis. accessibility apis are used by 3rd party software like screen readers, screen magnifiers, and voice dictation software, which need information about document content and ui controls, as well as important events like changes of focus. mozilla supports two accessibility apis: microsoft active accessibility (msaa) on windows and accessibility tool kit (atk) on linux and unix. we do not currently support the carbon accessibility model for apple's os x. please note, the documentation for implementing an msaa server has moved. you may also wish to read gecko info for windows accessibility vendors, a primer for vendors of 3rd party accessibility software, on how msaa clients can utilize gecko's support. if you're intere...
...c cross-platform accessibility interface nsiaccessible (which provides a text name, enumerated role identifier and a set of state flags) and sometimes additional interfaces. for example, tables support nsiaccessibletable, text supports nsiaccessibletext and edit boxes support nsieditabletext., although this code has been moved into the atk specific directories because it is not currently used in windows. we will not rule out the possibility of supporting some of the rich atk interfaces on windows. the toolkit-specific classes then use these xpcom interfaces to gather information about the objects they want to expose, make any necessary changes, and then expose the information using microsoft com on windows, or through gtk2's atk api's on linux and unix. the assistive technology can then use thi...
.... above: a diagram showing that the msaa tree is a subset of the dom tree. the situation for other accessibility apis is similar. the problem is, what happens if there are dom nodes that the assistive technology vendors wants to know about, which are not exposed? also, what if they want to get dom information, like css rules, tag names and attributes, that msaa's iaccessible does not provide? on windows, we solve this by supporting an additional interface beyond msaa's iaccesible, for every dom node. queryinterface() can be used to switch between the two interfaces. if there is no msaa node for a dom node, paccessible->queryinterface(iid_iaccessible) will return null. in addition, some vendors had asked us to provide information and support for pieces of text smaller than a text node (i.e. a wo...
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Simple Thunderbird build
underbird on older hardware it can take quite a bit of time to compile on slower machines with less ram. good internet connection for the initial source download. build prerequisites depending on your operating system you will need to carry out a different process to prepare your machine. so firstly complete the instructions for your os and then continue following these build instructions. ...
... good internet connection for the initial source download. build prerequisites depending on your operating system you will need to carry out a different process to prepare your machine. so firstly complete the instructions for your os and then continue following these build instructions. ...
...e instructions for your os and then continue following these build instructions. windows build prerequisites gnu/linux build prerequisites macos build prerequisites mapi headers on windows: check that the mapi header files from https://www.microsoft.com/en-us/download/details.aspx?id=12905 are installed because the mapi header files (except mapi.h) are not bundled with visual studio 2017 (windows sdk 10). you should copy 17 of the 18 header files to a windows sdk include directory so that the build process will find the files, that is c:\program files (x86)\windows kits\10\include\10.0.nnnnn.0\shared, where nnnnn is the highest number present on the system. note that the downloaded outlook 2010 mapi header files contain 18 fies, of which only 17 are needed. do not copy mapi.h, it is alre...
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nsIAccessibleRole
ssiblerole.idlscriptable this interface defines cross platform (gecko) roles. 1.0 66 introduced gecko 1.9 inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) constants constant value description role_nothing 0 used when accessible has no strong defined role. role_titlebar 1 represents a title or caption bar for a window. it is used by msaa only, supported automatically by ms windows. role_menubar 2 represents the menu bar (positioned beneath the title bar of a window) from which menus are selected by the user. the role is used by xul:menubar or role="menubar". role_scrollbar 3 represents a vertical or horizontal scroll bar, which is part of the client area or used in a control. role_grip 4 represents a spe...
... role_sound 5 represents a system sound, which is associated with various system events. role_cursor 6 represents the system mouse pointer. role_caret 7 represents the system caret. the role is supported for caret. ...
...lected by the user. the role is used by xul:menubar or role="menubar". role_scrollbar 3 represents a vertical or horizontal scroll bar, which is part of the client area or used in a control. role_grip 4 represents a special mouse pointer, which allows a user to manipulate user interface elements such as windows. for example, a user clicks and drags a sizing grip in the lower-right corner of a window to resize it. role_sound 5 represents a system sound, which is associated with various system events. role_cursor 6 represents the system mouse pointer. role_caret 7 represents the system caret. the role is supported for caret. role_alert 8 represents an alert or a condition that a user should be notified about. assistive technologies typically respond to the role by reading the entire on...
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nsIMsgIncomingServer
st changed in gecko 1.9.1 (firefox 3.5 / thunderbird 3.0 / seamonkey 2.0) method overview void clearallvalues(); void cleartemporaryreturnreceiptsfilter(); void closecachedconnections(); void configuretemporaryfilters(in nsimsgfilterlist filterlist); void configuretemporaryreturnreceiptsfilter(in nsimsgfilterlist filterlist); obsolete since gecko 1.8 void displayofflinemsg(in nsimsgwindow awindow); boolean equals(in nsimsgincomingserver server); void forgetpassword(); void forgetsessionpassword(); astring generateprettynameformigration(); boolean getboolattribute(in string name); boolean getboolvalue(in string attr); acstring getcharattribute(in string name); acstring getcharvalue(in string attr); nsilocalfile getfilevalue(in string relpref, in string abspref); ...
...mingserver server); void forgetpassword(); void forgetsessionpassword(); astring generateprettynameformigration(); boolean getboolattribute(in string name); boolean getboolvalue(in string attr); acstring getcharattribute(in string name); acstring getcharvalue(in string attr); nsilocalfile getfilevalue(in string relpref, in string abspref); nsimsgfilterlist getfilterlist(in nsimsgwindow amsgwindow); long getintattribute(in string name); long getintvalue(in string attr); nsimsgfolder getmsgfolderfromuri(in nsimsgfolder afolderresource, in acstring auri); void getnewmessages(in nsimsgfolder afolder, in nsimsgwindow amsgwindow, in nsiurllistener aurllistener); acstring getpasswordwithui(in astring apromptstring, in astring aprompttitle, in nsimsgwindow amsgwindow, out bo...
...tener aurllistener); acstring getpasswordwithui(in astring apromptstring, in astring aprompttitle, in nsimsgwindow amsgwindow, out boolean okayvalue); astring getunicharattribute(in string name); astring getunicharvalue(in string attr); boolean isnewhdrduplicate(in nsimsgdbhdr anewhdr); void onuserorhostnamechanged(in acstring oldname, in acstring newname); void performbiff(in nsimsgwindow amsgwindow); void performexpand(in nsimsgwindow amsgwindow); void removefiles(); void setboolattribute(in string name, in boolean value); void setboolvalue(in string attr, in boolean value); void setcharattribute(in string name, in acstring value); void setcharvalue(in string attr, in acstring value); void setdefaultlocalpath(in nsilocalfile adefaultlocalpath); void setfilevalue(i...
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Using the clipboard
o copy data: create an xpcom wrapper for the data which you want to put on the clipboard. this is needed because you can put anything on the clipboard from text to images. create a transferring object. this object can be the component @mozilla.org/widget/transferable;1 which implements the interface nsitransferable. initialize the transferring object with the nsiloadcontext obtained from the window that is the source of the clipboard data. this ensures that if the copied data comes from a window in private browsing mode, the clipboard will be cleared when private browsing mode ends. for reading from the clipboard you can call the init method of the transferable with null as nsiloadcontext, but you have to call it. tell the transferring object about the type of data being copied. tell the ...
...oard. first, we need to create an xpcom object to wrap what we want to copy. we'll assume that we want to copy some text. we will use the interface nsisupportsstring which can be used to represent strings (specifically, unicode strings). the following boilerplate utility functions will be used in all later code examples. // import the services module for future use, if we're not in // a browser window where it's already loaded. components.utils.import('resource://gre/modules/services.jsm'); // create a constructor for the built-in supports-string class. const nssupportsstring = components.constructor("@mozilla.org/supports-string;1", "nsisupportsstring"); function supportsstring(str) { // create an instance of the supports-string class var res = nssupportsstring(); // store the j...
...string(); // store the javascript string that we want to wrap in the new nsisupportsstring object res.data = str; return res; } // create a constructor for the built-in transferable class const nstransferable = components.constructor("@mozilla.org/widget/transferable;1", "nsitransferable"); // create a wrapper to construct an nsitransferable instance and set its source to the given window, when necessary function transferable(source) { var res = nstransferable(); if ('init' in res) { // when passed a window object, find a suitable privacy context for it. if (source instanceof ci.nsidomwindow) // note: in gecko versions >16, you can import the privatebrowsingutils.jsm module // and use privatebrowsingutils.privacycontextfromwindow(sou...
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The JavaScript input interpreter - Firefox Developer Tools
t+enter , enabling you to finish your input. for example, if you type: function foo() { and then enter, the console does not immediately execute the input, but behaves as if you had pressed shift+enter , so you can finish entering the function definition. multi-line mode for multi-line entry, click the "split pane" icon at the right hand side of the single-line entry field, or press ctrl+b (windows/linux) or cmd+b (macos). the multi-line editing pane opens on the left side the of web console. you can enter multiple lines of javascript by default in this mode, pressing enter after each one. to execute the snippet that is currently in the editing pane, click the run button or press ctrl+enter (or cmd+return on macos). the snippet is echoed under the input prompt (in the right-side pane), ...
... of the editing pane to a file. to open a file, press ctrl+o (cmd+o on macos). a file dialog box opens so you can select the file to open. to save the contents of the editing pane, press ctrl+s (cmd+s on macos). a file dialog box opens so you can specify the location to save to. ...
...le to open. to save the contents of the editing pane, press ctrl+s (cmd+s on macos). a file dialog box opens so you can specify the location to save to. to switch back to single-line mode, click the x icon at the top of the multi-line editing pane, or press ctrl+b (windows/linux) or cmd+b (macos). accessing variables you can access variables defined in the page, both built-in variables like window and variables added by javascript libraries like jquery: autocomplete the editor has autocomplete: enter the first few letters and a popup appears with possible completions: press enter, tab, or the right arrow key to accept the suggestion, use the up/down arrows to move to a different suggestion, or just keep typing if you don't like any of the suggestions. console autocomplete suggesti...
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Privileged features - Web APIs
this page lists the windowfeatures parameter of window.open function that requires chrome-privilege in firefox. this is not for web content. the following features require the chrome-privilege. centerscreen centers the window in relation to its parent's size and position. minimizable this setting can only apply to dialog windows; minimizable requires dialog=yes. if minimizable is on, the new dialog window will have a minimize system command icon in the titlebar and it will be minimizable. any non-dialog window is always minimizable and minimizable=no will be ignored. dependent if on, the new window is said to be dependent of its parent window. a dependent window closes when its parent window closes. ...
...windows; minimizable requires dialog=yes. if minimizable is on, the new dialog window will have a minimize system command icon in the titlebar and it will be minimizable. any non-dialog window is always minimizable and minimizable=no will be ignored. dependent if on, the new window is said to be dependent of its parent window. a dependent window closes when its parent window closes. a dependent window is minimized on the windows task bar only when its parent window is minimized. on windows platforms, a dependent window does not show on the task bar. a dependent window also stays in front of the parent window. dependent windows are not implemented on macos x, this option will be ignored. the dependent feature is currently under revision to be removed (bug 214867) in msie 6, the nearest equiv...
...there will be no context menu defined by default and none of the standard keyboard shortcuts will work. the page is supposed to provide a user interface of its own, usually this feature is used to open xul documents (standard dialogs like the javascript console are opened this way). ...
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panel - Archive of obsolete content
url: require("sdk/self").data.url("myfile.html") }); mypanel.show(); from firefox 34, you can use "./myfile.html" as an alias for self.data.url("myfile.html"). so you can rewrite the above code like this: var mypanel = require("sdk/panel").panel({ contenturl: "./myfile.html" }); mypanel.show(); panel positioning by default the panel appears in the center of the currently active browser window. you can position the panel by passing a position to the panel's constructor or to its show() method. attaching panels to buttons you can attach a panel to a toggle button by passing the button itself as the position option to the panel's show() method or to its constructor: var { togglebutton } = require('sdk/ui/button/toggle'); var sdkpanels = require("sdk/panel"); var self = require("sdk/se...
...this is usually the best approach. embedding an iframe in the panel, and changing its document setting the panel's contenturl property. however, doing this will cause any content scripts to be unloaded and then reloaded, so ...
... you can communicate with the script using either the postmessage() api or (preferably, usually) the port api. for example, here's an add-on whose content script intercepts mouse clicks on links inside the panel, and sends the target url to the main add-on code. the content script sends messages using self.port.emit() and the add-on script receives them using panel.port.on(). ...
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Setting up an extension development environment - Archive of obsolete content
task of creating just a developer profile, we will start the application with the parameters: /path/to/firefox -no-remote -p profilename without these parameters, the default behavior of your mozilla applications is to only open the everyday user profile: named default. as we are specifically defining the user profile dev, if you don't have the dev profile already created, the profile selection window opens, where you can create it. in the following example, the described command starts a new instance of firefox, with a profile called dev; even if an instance of firefox is already running. on ubuntu (and many other linux distributions): /usr/bin/firefox -no-remote -p dev on other distributions of linux/unix: /usr/local/bin/firefox -no-remote -p dev on macos mavericks (10.9) and newer: ...
...and starts a new instance of firefox, with a profile called dev; even if an instance of firefox is already running. on ubuntu (and many other linux distributions): /usr/bin/firefox -no-remote -p dev on other distributions of linux/unix: /usr/local/bin/firefox -no-remote -p dev on macos mavericks (10.9) and newer: /applications/firefox.app/contents/macos/firefox-bin -no-remote -p dev & on windows: start -> run "%programfiles%\mozilla firefox\firefox.exe" -no-remote -p dev on windows 64 bit: start -> run "%programfiles(x86)%\mozilla firefox\firefox.exe" -no-remote -p dev to start thunderbird or seamonkey instead of firefox, substitute thunderbird, or seamonkey for the firefox used in our examples. note: you could run firefox using your regular profile while developing. however, you...
...nefits of isolated resources, which we discussed earlier. the parameter -p profilename doesn't imply -no-remote, therefore use them together. if you are already running a firefox instance without -no-remote, and you attempt to start another instance with -p profilename (but without the -no-remote parameter), that second invocation would ignore its -p profilename parameter, instead opening a new window for the already running instance; sharing all its profile, sessions etc. download firefox download your desired version of firefox. unpack them in your user home directory, and name folders for easy navigation to firenightly and firedevedition or similar. you do not have to install these unstable versions, if you do not wish. make a symbolic link (also referred to as a shortcut) to the firefo...
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sizemode - Archive of obsolete content
« xul reference home sizemode type: one of the values below the state of the window. it can have one of the following values: maximized the window is maximized, and occupies the full size of the screen. normal the window appears in a normal state at the desired size. this attribute is used to save and restore the state of a window (together with the persist attribute) and for css styles (e.g. to hide the resizer grippy on maximized windows). note: when a window is minimized, the sizemode attribute is not updated. this is done so that if a window is closed while minimized, its persisted sizemode attribute wouldn't be minimized. ...
... note: prior to gecko 13.0, this did not work on mac os x. ...
... note: prior to gecko 13.0, this did not work on mac os x. ...
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XUL Events - Archive of obsolete content
vent reference subpages broadcastthe broadcast event is executed when the attributes of the element (such as a broadcaster) being listened to are changed. the event handler should be placed on an observer.checkboxstatechangethe checkboxstatechange event is executed when the state of a <checkbox> element has changed.closethe close event is executed when a request has been made to close the window when the user presses the close button.commandthe command event is executed when an element is activated.commandupdatethe commandupdate event is executed when a command update occurs on a <commandset>. this event would be used to update the disabled status of its commands.dommenuitemactivethe dommenuitemactive event is executed when a <menu> or a <menuitem> has been hovered or highlighted.dommenu...
...f the user pressed the same key repeatedly). attribute: onkeypress keyup the keyup event is sent to an element that has the focus when a key is released. attribute: onkeyup load this event is sent to the window after it has been fully loaded. you should place this event handler on the window element. this event may also be used on the image element, or an element that accepts an image attribute, and will be fired when the image has finished loading. for images, this event does not bubble up the element tree, so it will not conflict with the window's load event. attribute: onload ...
...is event is sent when the mouse is released on an element. attribute: onmouseup select this event is sent to a listbox or tree when an item is selected. attribute: onselect unload this event is sent to a window when the window has closed. this is done after the close event. you should place this event handler on the window element. attribute: onunload mutation dom events event description domattrmodified this event is sent to...
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Code Samples - Archive of obsolete content
r computer, use code like this. change the first line to specify the file that you want to launch. you can launch an executable file or some other file that your operating system knows how to open. note: on operating systems that use backslash characters, double each backslash character. on operating systems that use forward-slash characters, specify the file in the normal way. const path = "c:\\windows\\charmap.exe" var file = components .classes["@mozilla.org/file/local;1"] .createinstance(components.interfaces.nsilocalfile) file.initwithpath(path) file.launch() open a web page if your button is in firefox or seamonkey, use code like this to open a web page. change the first line to specify the page that you want to open: const url = "http://www.mozilla.org/" document .getelementbyi...
... .getservice(components.interfaces.nsiuri) uri.spec = url components .classes["@mozilla.org/uriloader/external-protocol-service;1"] .getservice(components.interfaces.nsiexternalprotocolservice) .loadurl(uri) compose an e-mail to compose an e-mail, use the same code as in the section open a web page above. ...
...i) uri.spec = url components .classes["@mozilla.org/uriloader/external-protocol-service;1"] .getservice(components.interfaces.nsiexternalprotocolservice) .loadurl(uri) compose an e-mail to compose an e-mail, use the same code as in the section open a web page above. change the first line to specify: const url = "mailto://" open an application window to open one of the application's windows, use code like this. ...
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Document Object Model - Archive of obsolete content
ul nodes. when an xul file is loaded, the tags are parsed and converted into a hierarchical document structure of nodes, one for each tag and block of text. the dom structure may be examined and modified using various methods provided for this purpose. specific xul elements also provide additional functions which may be used. each xul file that is loaded will have its own document displayed in a window or frame. although there is only ever one document associated with a window at a time, you may load additional documents using various methods. in mozilla, the dom may be accessed and manipulated using javascript. the various dom objects have functions which may be accessed in script, however, it is important to note that the dom is an api that is accessible by javascript. javascript itself is j...
...vides these objects for use. in javascript, there is always a single global object that is always available. you can refer to the properties and methods of the global object without having to qualify them with an object. for example, if the global object has a 'name' property, you can change the name with the code 'name = 7', without having to specify any object to use. in a browser context, the window is the global object, and the same is also true for xul. naturally, this global object will be different for each window. each frame will also have a separate window object. the window is often referred to using the window property, although this is optional. sometimes, this is done just to clarify the scope of the method you are referring to. for example, the following two lines which open a ne...
...s the global object, and the same is also true for xul. naturally, this global object will be different for each window. each frame will also have a separate window object. the window is often referred to using the window property, although this is optional. sometimes, this is done just to clarify the scope of the method you are referring to. for example, the following two lines which open a new window are functionally equivalent: window.open("test.xul","_new"); open("test.xul","_new"); when you declare a function or a variable at the top level of a script, that is outside another function, you are actually declaring a property of the global object. in xul, each function you declare will be set as a property of the window object. for example, the following code will display the text 'message...
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XUL Structure - Archive of obsolete content
enhanced privileges. html, xml, and xul each have a different document type. some features may be used in any document type whereas some features are specific to one kind of document. the next few sections describe the basic structure of a chrome package which can be installed into mozilla. however, if you just want to get started building a simple application, you may skip ahead to creating a window and save this section for later. package organization mozilla is organized such that you can have as many components as you want pre-installed. each extension is something of a standalone component with a separate chrome url. mozilla also has one component for each installed theme and locale. each of these components, or packages, is made up of a set of files that describe the user interface fo...
...t you can have as many components as you want pre-installed. each extension is something of a standalone component with a separate chrome url. mozilla also has one component for each installed theme and locale. each of these components, or packages, is made up of a set of files that describe the user interface for it. for example, the messenger component has descriptions of the mail messages list window, the composition window and the address book dialogs. the packages that are provided with mozilla are located within the chrome directory, which is in the directory where you built mozilla. the chrome directory is where you find all the files that describe the user interface used by the mozilla browser, mail client, and other applications. typically, you put all the xul files for an application ...
...hrome url is by creating a package as described in the next few sections. this directory is called 'chrome' probably because it seemed like a convenient name to use in keeping with the chrome packages that are included with mozilla. to further the confusion, there are two other places where the word "chrome" might appear. these are the -chrome command line argument and the chrome modifier to the window.open() function. neither of these features grant extra privileges; instead they are used to open a new top-level window without the browser ui such as the menu and toolbar. you will commonly use this feature in more complex xul applications since you wouldn't want the browser ui to exist around your dialog boxes. the files for a package are usually combined into a single jar file. a jar file may...
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NPAPI plugin reference - Archive of obsolete content
the articles below describe each of the apis related to npapi plugins. browser-side plug-in api this chapter describes methods in the plug-in api that are provided by the browser; these allow call back to the browser to request information, tell the browser to repaint part of the window, and so forth. the names of all of these methods begin with npn_ to indicate that they are implemented by the browser and called by the plug-in. np_getmimedescription np_getmimedescription returns a supported mime type list for your plugin. it works on unix (linux) and macos. on windows you have to define supported mimetypes in the dll resource file. np_getvalue allows the browser to query the plug-in for information. np_initialize provides global initialization for a plug-in. np_port contains in...
... np_shutdown provides global deinitialization for a plug-in. npanycallbackstruct contains information required during embedded mode printing. ...
... np_shutdown provides global deinitialization for a plug-in. npanycallbackstruct contains information required during embedded mode printing. ...
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What text editors are available? - Learn web development
es my text editor's look-and-feel matter to me? notice we didn't mention price. obviously, that matters too, but a product's cost has little connection with its quality or capability. there's a big chance you'll find a suitable text editor for free. here are some popular editors: editor licence price os support doc. ...
..., that matters too, but a product's cost has little connection with its quality or capability. there's a big chance you'll find a suitable text editor for free. here are some popular editors: editor licence price os support doc. ...
...ig chance you'll find a suitable text editor for free. here are some popular editors: editor licence price os support doc. ...
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Accessible Toolkit Checklist
controls. however, be aware that the wrapping layer will introduce accessibility bugs, and thus you will need to test extensively and fill in the holes. you will also need to provide a way for custom and owner drawn controls to easily accessibility api support, as wxwidgets does. there will be custom and owner drawn controls -- there always are. for example, lists of checkboxes are implemented in windows with images of checked and unchecked checkboxes. owner drawn toolkits , like xul and flash's flex ui framework use few or no native widgets. these toolkits need to have accessibility implemented from the ground up, and get nothing for free in terms of keyboard, api or os-theme support. in this case, adding a complete or even a partial accessibility solution is major work, and w...
...drawn toolkits , like xul and flash's flex ui framework use few or no native widgets. these toolkits need to have accessibility implemented from the ground up, and get nothing for free in terms of keyboard, api or os-theme support. ...
...emented from the ground up, and get nothing for free in terms of keyboard, api or os-theme support. in this case, adding a complete or even a partial accessibility solution is major work, and will require more than one full time person as well as cooperation from windows assistive technology vendors when parts of your msaa solution isn't working. often these kinds of toolkits don't use a separate window for each control; in that case remember to generate a unique 32 bit child id for each control so that the msaa event system can call back for the right iaccessible for each event. the checklist this checklist is currently only for microsoft windows, but should be expanded to include information about linux and os x. it is maintained by the mozilla accessibility community. contributions are welco...
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Chrome registration
what is chrome? ...
... what is chrome? ...
... what is chrome? ...
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Creating Custom Events That Can Pass Data
code but it will have to be a lot of code because nsdomevent uses a lot of code outside of itself which you, again, cannot access from an extension. this remains true even if you mark you extension code as "internal". dispatching your event in javascript here is how to dispatch your event in javascript. ...
...s from an extension. this remains true even if you mark you extension code as "internal". dispatching your event in javascript here is how to dispatch your event in javascript. ...
..."internal". dispatching your event in javascript here is how to dispatch your event in javascript. ...
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Message manager overview
pt. so fundamentally, frame message managers enable chrome code to: load a script into a frame (essentially, a single browser tab) in the content process. these scripts are called "frame scripts". communicate with frame scripts using message-passing apis there are various types of frame message managers, as depicted in this diagram: this diagram shows the setup when there are 2 browser windows open, one with 2 tabs open and one with 1 tab open. chrome process in the chrome process, there's a hierarchy of frame message managers: the global frame message manager, window message managers, and browser message managers. global frame message manager description there's a single global frame message manager in the chrome process. this operates on all frames, in all ...
...anager, the script gets loaded separately into every open tab: three times, in the diagram above. similarly, if you send a message using the global frame message manager, it's received by all content tabs, and is then delivered to any frame scripts that are listening for it. ...
...erfaces nsiframescriptloader nsimessagelistenermanager nsimessagebroadcaster how to access access it using components.classes: // chrome script let globalmm = cc["@mozilla.org/globalmessagemanager;1"] .getservice(ci.nsimessagelistenermanager); you can also access it as the mm property of services.jsm, if you are in the parent process. ...
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Embedding Tips
embedders may wish to override some of the default service implementations with their own. ...
...interface. call the nsiwebbrowserprint::printpreview() method supplying a print settings object (e.g. that returned from nsiwebbrowserprint::getglobalprintsettings()) that you wish to preview the page with. the nsiwebbrowserprint::printpreviewnavigate() method can be used to step through the pages. when finished with preview mode, call nsiwebbrowserprint::exitprintpreview(). ...
...review() method supplying a print settings object (e.g. that returned from nsiwebbrowserprint::getglobalprintsettings()) that you wish to preview the page with. the nsiwebbrowserprint::printpreviewnavigate() method can be used to step through the pages. when finished with preview mode, call nsiwebbrowserprint::exitprintpreview(). how do i get popup windows working? implement and register a nsiwindowcreator object with the window watcher service. ...
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Application Translation with Mercurial
d by going to localization status page and click on the page for your language. in the section "applications & sign-offs", you will find different products and branches which are currently in translation. gaia-* denotes branches of firefox os, the operating system for mobile devices. firefox and fx-* denote branches of firefox for desktop, the browser for desktops and notebooks running, windows, mac os or linux. fennec and fennec-* denote branches of firefox for mobile, the firefox browser for the android operating system. thunderbird and tb-* denote branches of thunderbird, the mail client, newsgroup and feed reader and chat client. the localization of the lightning calendar add-on also takes place on these branches. seamonkey and sea-* denote branches of seamonkey, the suite...
...a.org/firefox/bundles/ the file is not small, but after initially downloading it, you only need to download the latest changes in the future. thunderbird, lightning or seamonkey: download the comm-<branch>.hg file (e.g. comm-aurora.hg) from https://ftp.mozilla.org/pub/mozilla.org/thunderbird/bundles/ in the next step, we will unpack the source code: open an input shell, e.g. by pressing the windows key and r on the keyboard or by calling the "run..." command from the windows "start" button, and then typing cmd and pressing the enter key. launch the installed mozillabuild toolset by launching it with its path, e.g. c:\mozilla\coding\buildtools\mozillabuild\start-shell-msvc2010.bat you can autocomplete the file path after typing a few characters and then pressing the tabulator key. if yo...
...am), and compiling the application likely won't work. you are now in the mozilla development environment which emulates a linux environment. now go to the directory where you want to put the source code. it's highly recommended to put it onto the fastest hard drive in the device. file paths here work starting with a slash (/) followed by the drive letter, and then the directory structure like on windows, but using slashes (/) instead of backslashes (\). so let's go to c:\mozilla by typing cd /c/mozilla/ create a new directory for the source code: mkdir mozilla-aurora initialize the new directory as new repository: hg init mozilla-aurora go into the new directory: cd mozilla-aurora unpack the source code: hg unbundle /path/to/the/downloaded/mozilla-aurora.hg this can take some ti...
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