JavaClass - Archive of obsolete content
summary core object a javascript reference to a java class.
... created by a reference to the class name used with the packages object: packages.javaclass javaclassis the fully-specified name of the object's java class.
... the liveconnect java, sun, and netscape objects provide shortcuts for commonly used java packages and also create javaclass objects.
...And 10 more matches

Components.classes
components.classes is a read-only object whose properties are classes indexed by contractid.
... introduction components.classes is a read-only object whose properties implement the nsijscid interface.
... each object represents one of the classes of xpcom components that can be constructed or accessed as an xpcom service.
...And 10 more matches

Inheriting from implementation classes
given that idl interfaces map to abstract classes in c++, a common problem when dealing with idl is when you have an idl inheritance hierarchy, and a corresponding c++ implementation hierarchy, you run into multiple inheritance.
...example problem you have interfaces a and b, b inherits from a, and you have implementation classes for both a and b, and you want the implementation class for b to inherit from the implementation class for a.
...the lacking virtual in the generated ib c++ abstract class doesn't make things easier.
...And 9 more matches

Private class fields - JavaScript
class properties are public by default and can be examined or modified outside the class.
... there is however an experimental proposal to allow defining private class fields using a hash # prefix is added.
... syntax class classwithprivatefield { #privatefield } class classwithprivatemethod { #privatemethod() { return 'hello world' } } class classwithprivatestaticfield { static #private_static_field } examples private static fields private fields are accessible on the class constructor from inside the class declaration itself.
...And 9 more matches

JSExtendedClass
jsextendedclass is an extended version of jsclass with additional hooks.
... a c/c++ program can use a jsextendedclass with the js_initclass and js_newobject apis to create objects that have custom methods and properties implemented in c/c++.
... syntax struct jsextendedclass { jsclass base; jsequalityop equality; jsobjectop outerobject; jsobjectop innerobject; jsiteratorop iteratorobject;// added in spidermonkey 1.8 jsobjectop wrappedobject; // added in spidermonkey 1.8 ...and additional reserved fields.
...And 7 more matches

JS_GET_CLASS
retrieves the class associated with an object.
... this macro was removed in spidermonkey 1.8.8 when the signature of js_getclass() was changed to take only an object pointer.
... syntax #ifdef js_threadsafe #define js_get_class(cx,obj) js_getclass(cx, obj) #else #define js_get_class(cx,obj) js_getclass(obj) #endif parameter type description cx jscontext * any context associated with the runtime in which obj exists.
...And 7 more matches

Using RAII classes in Mozilla
raii classes are useful when two operations (e.g., lock/unlock, addref/release, pushstate/popstate) must be paired.
... ensuring raii classes are not used as temporaries a common mistake when using raii classes is to accidentally forget to name object, which causes its scope to be different from what is intended.
... static analysis static analysis passes are run on our testing infrastructure using our clang plugin, you can also run them locally marking a raii class for the static analysis is very simple, and performing this marking causes the static analysis to produce a build-time error whenever a raii class is allocated as a temporary, on the heap, or in static storage.
...And 7 more matches

XPCOM glue classes
these "glue" classes are provided to make it easier to use xpcom from c++ code.
... when these classes are used by a component, you may need to link the component against the xpcom glue library.
... ns convertasciitoutf16 externalclass declarationns convertutf16toutf8 externalclass declarationns convertutf8toutf16 externalclass declarationns lossyconvertutf16toascii externalclass declarationns_convertasciitoutf16class declarationns_convertutf16toutf8class declarationns_convertutf8toutf16class declarationns_lossyconvertutf16toasciiclass declarationns_overridens_override is a macro which allows c++ code in mozilla to specify that a method is intended to override a base class method.
...And 7 more matches

Document.getElementsByClassName() - Web APIs
the getelementsbyclassname method of document interface returns an array-like object of all child elements which have all of the given class name(s).
...you may also call getelementsbyclassname() on any element; it will return only elements which are descendants of the specified root element with the given class name(s).
... syntax var elements = document.getelementsbyclassname(names); // or: var elements = rootelement.getelementsbyclassname(names); elements is a live htmlcollection of found elements.
...And 7 more matches

Element.className - Web APIs
the classname property of the element interface gets and sets the value of the class attribute of the specified element.
... syntax var cname = elementnodereference.classname; elementnodereference.classname = cname; cname is a string variable representing the class or space-separated classes of the current element.
... example let el = document.getelementbyid('item'); if (el.classname === 'active'){ el.classname = 'inactive'; } else { el.classname = 'active'; } notes the name classname is used for this property instead of class because of conflicts with the "class" keyword in many languages which are used to manipulate the dom.
...And 7 more matches

Element.getElementsByClassName() - Web APIs
the element method getelementsbyclassname() returns a live htmlcollection which contains every descendant element which has the specified class name or names.
... the method getelementsbyclassname() on the document interface works essentially the same way, except it acts on the entire document, starting at the document root.
... syntax var elements = element.getelementsbyclassname(names); parameters names a domstring containing one or more class names to match on, separated by whitespace.
...And 7 more matches

JS_GetClass
retrieves the class associated with an object.
... syntax const jsclass * js_getclass(jsobject *obj); name type description cx jscontext * any context associated with the runtime in which obj exists.
... obj jsobject * object to get the class from.
...And 6 more matches

JS_InitStandardClasses
initializes general js function and object classes, and the built-in object classes used in most scripts.
... syntax bool js_initstandardclasses(jscontext *cx, js::handle<jsobject*> obj); name type description cx jscontext * pointer to the executable script context for which to initialize js function and object classes.
...this object must be of a jsclass that has the jsclass_global_flags bits set.
...And 6 more matches

JS_ResolveStandardClass
resolve a standard class in an object.
... syntax bool js_resolvestandardclass(jscontext *cx, js::handleobject obj, js::handleid id, bool *resolved); name type description cx jscontext * pointer to the executable script context for which to initialize js function and object classes.
... obj js::handleobject an object to resolve id to a standard class.
...And 6 more matches

class - HTML: Hypertext Markup Language
the class global attribute is a space-separated list of the case-sensitive classes of the element.
... classes allow css and javascript to select and access specific elements via the class selectors or functions like the dom method document.getelementsbyclassname.
... though the specification doesn't put requirements on the name of classes, web developers are encouraged to use names that describe the semantic purpose of the element, rather than the presentation of the element.
...And 6 more matches

class - JavaScript
the class declaration creates a new class with a given name using prototype-based inheritance.
... you can also define a class using a class expression.
... but unlike a class expression, a class declaration doesn't allow an existing class to be declared again and will throw a syntaxerror if attempted.
...And 6 more matches

Underscores in class and ID Names - Archive of obsolete content
given this fact, authors who write css often attempt to employ the underscore in a similar fashion when creating class and id names.
...although underscores are, as of this writing, technically permitted in class and id names, there are many historical and practical reasons why they should be avoided.
... the css1 specification, published in its final form in 1996, did not allow for the use of underscores in class and id names unless they were "escaped." an escaped underscore would look something like this: p.urgent\_note {color: maroon;} this was not well supported by browsers at the time, however, and the practice has never caught on.
...And 5 more matches

Using nsIClassInfo
what is nsiclassinfo good for?
... if you use a c++ class which implements nsiclassinfo from javascript, then you don't have to explicitly call queryinterface on the javascript object to access the object's interfaces.
... nsiclassinfo is good for other things too, but they're dark xpcom magic.
...And 5 more matches

Pseudo-classes - CSS: Cascading Style Sheets
a css pseudo-class is a keyword added to a selector that specifies a special state of the selected element(s).
... /* any button over which the user's pointer is hovering */ button:hover { color: blue; } pseudo-classes let you apply a style to an element not only in relation to the content of the document tree, but also in relation to external factors like the history of the navigator (:visited, for example), the status of its content (like :checked on certain form elements), or the position of the mouse (like :hover, which lets you know if the mouse is over an element or not).
... note: in contrast to pseudo-classes, pseudo-elements can be used to style a specific part of an element.
...And 5 more matches

JSClass.call
the jsclass.call and jsclass.construct hooks are called when a custom object is used like a function.
...// suppose this object has jsclass.call and jsclass.construct hooks.
... var custom = new specialcustomobject(); custom(); // the jsclass.call hook receives the global object as the obj parameter.
...And 4 more matches

class - SVG: Scalable Vector Graphics
« svg attribute reference home assigns a class name or set of class names to an element.
... you may assign the same class name or names to any number of elements, however, multiple class names must be separated by whitespace characters.
... an element's class name serves two key roles: as a style sheet selector, for when an author assigns style information to a set of elements.
...And 4 more matches

NPClass - Archive of obsolete content
« gecko plugin api reference « scripting plugins summary npclass is a structure that holds a set of pointers to functions that make up the behavior of an instance of an npclass (i.e.
... syntax struct npclass { uint32_t structversion; npallocatefunctionptr allocate; npdeallocatefunctionptr deallocate; npinvalidatefunctionptr invalidate; nphasmethodfunctionptr hasmethod; npinvokefunctionptr invoke; npinvokedefaultfunctionptr invokedefault; nphaspropertyfunctionptr hasproperty; npgetpropertyfunctionptr getproperty; npsetpropertyfunctionptr setproperty; npremovepropertyfunctionptr removeproperty; npenumerationfunctionptr enumerate; npconstructfunctionptr construct; }; warning: don't call these routines directly.
...this is set to np_class_struct_version, which is 1 in mozilla 1.8.*, 2 since mozilla 1.9a1, and 3 since firefox 3.0b1.
...And 3 more matches

JS_GetClassObject
get the builtin class constructor.
... syntax bool js_getclassobject(jscontext *cx, jsprotokey key, js::mutablehandle<jsobject*> objp); name type description cx jscontext * a context.
...if successful, receive the class constructor.
...And 3 more matches

JS_GetClassPrototype
get the builtin class prototype object.
... syntax bool js_getclassprototype(jscontext *cx, jsprotokey key, js::mutablehandle<jsobject*> objp); name type description cx jscontext * a context.
...if successful, receive the class prototype object.
...And 3 more matches

JS_EnumerateStandardClasses
enumerate standard class in an object.
... syntax bool js_enumeratestandardclasses(jscontext *cx, js::handleobject obj); name type description cx jscontext * pointer to the executable script context for which to initialize js function and object classes.
... obj js::handleobject an object to enumerate standard classes.
...And 2 more matches

Components.classesByID
components.classesbyid is a read-only object whose properties are classes indexed by cid.
... introduction components.classesbyid is a read-only object whose properties implement the nsijscid interface.
... each property represents one of the classes of xpcom components that can be constructed or accessed as an xpcom service.
...And 2 more matches

Class - MDN Web Docs Glossary: Definitions of Web-related terms
in object-oriented programming, a class defines an object's characteristics.
... class is a template definition of an object's properties and methods, the "blueprint" from which other more specific instances of the object are drawn.
... learn more general knowledge class-based vs.
... prototype-based programming languages (like javascript) using functions as classes in javascript class-based programming on wikipedia object-oriented programming on wikipedia ...

JSExtendedClass.wrappedObject
description if a class has the jsclass_is_extended bit set in its jsclass.flags and has a non-null jsextendedclass.wrappedobject, then objects of that class may be wrappers.
...in these cases the engine calls the jsextendedclass.wrappedobject callback to get the wrapped object.
... most classes do not implement wrappedobject.
... the specific cases where this happens are: the default tostring method returns a string that contains the name of the wrapped object's class rather than the wrapper's class.

USBDevice.deviceClass - Web APIs
the deviceclass read only property of the usbdevice interface one of three properties that identify usb devices for the purpose of loading a usb driver that will work with that device.
... the other two properties are usbdevice.devicesubclass and usbdevice.deviceprotocol.
... syntax var number = usbdevice.deviceclass value a number.
... specifications specification status comment webusbthe definition of 'deviceclass' in that specification.

USBDevice.deviceClass - Web APIs
the deviceclass read only property of the usbdevice interface one of three properties that identify usb devices for the purpose of loading a usb driver that will work with that device.
... the other two properties are usbdevice.devicesubclass and usbdevice.deviceprotocol.
... syntax var number = usbdevice.deviceclass value a number.
... specifications specification status comment webusbthe definition of 'deviceclass' in that specification.

USBDevice.deviceSubclass - Web APIs
the devicesubclass read only property of the usbdevice interface one of three properties that identify usb devices for the purpose of loading a usb driver that will work with that device.
... the other two properties are usbdevice.deviceclass and usbdevice.deviceprotocol.
... syntax var serialnumber = usbdevice.devicesubclass value a number.
... specifications specification status comment webusbthe definition of 'devicesubclass' in that specification.

Class selectors - CSS: Cascading Style Sheets
the css class selector matches elements based on the contents of their class attribute.
... /* all elements with class="spacious" */ .spacious { margin: 2em; } /* all <li> elements with class="spacious" */ li.spacious { margin: 2em; } /* all <li> elements with a class list that includes both "spacious" and "elegant" */ /* for example, class="elegant retro spacious" */ li.spacious.elegant { margin: 2em; } syntax .class_name { style properties } note that this is equivalent to the following attribute selector: [class~=class_name] { style properties } examples css .red { color: #f33; } .yellow-bg { background: #ffa; } .fancy { font-weight: bold; text-shadow: 4px 4px 3px #77f; } html <p class="red">this paragraph has red text.</p> <p class="red yellow-bg">this paragraph has red text and a yellow background.</p> <p class="red fancy">this paragraph has red tex...
...t and "fancy" styling.</p> <p>this is just a regular paragraph.</p> result specifications specification status comment selectors level 4the definition of 'class selectors' in that specification.
... working draft no changes selectors level 3the definition of 'class selectors' in that specification.

JS_EnumerateResolvedStandardClasses
enumerate any already-resolved standard class ids.
... syntax jsidarray * js_enumerateresolvedstandardclasses(jscontext *cx, jsobject *obj, jsidarray *ida); name type description description js_enumerateresolvedstandardclasses enumerates any already-resolved standard class ids into ida, or into a new jsidarray if ida is null.
... see also js_enumerateresolvedstandardclasses bug 884410 ...

Character classes - JavaScript
character classes distinguish kinds of characters such as, for example, distinguishing between letters and digits.
...the "basic multilingual plane" of unicode contains most of the characters used around the world and we can use character classes and ranges to match words written with those characters.
... specifications specification ecmascript latest draft (ecma-262)the definition of 'regexp: character classes' in that specification.

class - Archive of obsolete content
« xul reference home class type: string the style class of the element.
... multiple classes may be specified by separating them with spaces.

Pseudo-class - MDN Web Docs Glossary: Definitions of Web-related terms
in css, a pseudo-class selector targets elements depending on their state rather than on information from the document tree.
... learn more technical reference pseudo-class documentation ...

deviceClass - Web APIs
the bluetoothdevice.deviceclass read-only property returns a number representing the bluetooth devices "class of device".
... syntax var deviceclass = instanceofbluetoothdevice.deviceclass returns a number.

HTTP Class Overview - Archive of obsolete content
this document provides an overview of the classes used by the mozilla http implementation.

className - Archive of obsolete content
« xul reference classname type: string gets and sets the value of the class attribute.

chromeclass-toolbar - Archive of obsolete content
« xul reference home chromeclass-toolbar when this class is used, the toolbar will be hidden when a window is opened by setting the toolbar option to no in the window.open method.

Style classes - Archive of obsolete content
« xul reference home alert-icon chromeclass-toolbar error-icon groove header indent listcell-iconic listitem-iconic menuitem-iconic menuitem-non-iconic message-icon monospace plain question-icon small-margin statusbarpanel-iconic statusbarpanel-iconic-text statusbarpanel-menu-iconic text-link thin tree-splitter treecol-image ...

-moz-maemo-classic - Archive of obsolete content
the -moz-maemo-classic gecko-only css media feature can be used to apply styles based on whether the user agent is using the original maemo theme.

-moz-windows-classic - Archive of obsolete content
syntax <integer> if the user is using windows unthemed (in classic mode instead of using uxtheme), this is 1.

First-class Function - MDN Web Docs Glossary: Definitions of Web-related terms
a programming language is said to have first-class functions when functions in that language are treated like any other variable.

JSExtendedClass.outerObject
jsextendedclass.outerobject and .innerobject are callbacks for split objects.

JS_InitCTypesClass
syntax jsbool js_initctypesclass(jscontext *cx, jsobject *global); name type description cx jscontext * the context.

classDescription
this content is now available at nsiclassinfo.attributes.

classID
this content is now available at nsiclassinfo.attributes.

classIDNoAlloc
this content is now available at nsiclassinfo.attributes.

getClassObject
this content is now available at nsicomponentmanager.getclassobject ().

getClassObjectByID
this content is now available at nsicomponentmanager.getclassobjectbyid().

getClassObject
this content is now available at nsimodule.getclassobject().

Using the :target pseudo-class in selectors - CSS: Cascading Style Sheets
picking a target the pseudo-class :target is used to style the target element of a url containing a fragment identifier.

Mozilla DOM Hacking Guide
mozilla gives you the opportunity not only to use very powerful and complete dom support, but also to work on a world-class implementation of one of the greatest internet technologies ever created.
...in this document i will try to outline the main aspects of the implementation, beginning with the class info mechanism, which lies at the heart of the dom, then with the description of various interfaces and classes.
... class info and helper classes introduction to class info class info is what gives the dom classes their correct behavior when used through xpconnect.
...And 129 more matches

Index - Archive of obsolete content
24 classes and inheritance add-on sdk no summary!
... 125 util/collection a simple list-like class and utilities for using it.
... 357 activex control for hosting netscape plug-ins in ie add-ons, needsclassification, plugins microsoft has removed support for netscape plug-ins from ie 5.5 sp 2 and beyond.
...And 62 more matches

Mozilla internal string guide
most of the mozilla code uses a c++ class hierarchy to pass string data, rather than using raw pointers.
... this guide documents the string classes which are visible to code within the mozilla codebase (code which is linked into libxul).
... introduction the string classes are a library of c++ classes which are used to manage buffers of wide (16-bit) and narrow (8-bit) character strings.
...And 62 more matches

Index
29 js::callargs jsapi reference, reference, référence(2), spidermonkey js::callargs is helper class encapsulating access to the callee, this value, arguments, and argument count for a function call.
... 49 js::identifystandardinstance jsapi reference, reference, référence(2), spidermonkey js::identifystandardinstance determines if the given object is an instance for a standard class.
... 69 js::sourcebufferholder jsapi reference, reference, référence(2), spidermonkey js::sourcebufferholder is the container class for passing in script source buffers to the js engine.
...And 58 more matches

Introduction to XPCOM for the DOM
a tutorial about how to add a new interface is also provided, and eventually, a more detailed discussion of class inheritance in c++.
... interfaces object-oriented programming is based on the used of inheritance between classes.
... furthermore, a class can be de declared to be "abstract" if it declares some methods but does not implement them entirely.
...And 53 more matches

Index
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.
... 12 index found 1275 pages: 13 interfacing with the xpcom cycle collector firefox 3, xpcom this is a quick overview of the cycle collector introduced into xpcom for firefox 3, including a description of the steps involved in modifying an existing c++ class to participate in xpcom cycle collection.
... if you have a class that you think is involved in a cyclical-ownership leak, this page is for you.
...And 52 more matches

WebIDL bindings
adding webidl bindings to a class to add a webidl binding for interface myinterface to a class mozilla::dom::myinterface that's supposed to implement that interface, you need to do the following: if your interface doesn't inherit from any other interfaces, inherit from nswrappercache and hook up the class to the cycle collector so it will trace the wrapper cache properly.
...if you also inherit from nsisupports, make sure the nsisupports comes before the nswrappercache in your list of parent classes.
... if you do need to hook up cycle collection, it will look like this in the common case of also inheriting from nsisupports: // add strong pointers your class holds here.
...And 49 more matches

MMgc - Archive of obsolete content
in mmgc, you get managed memory by subclassing gcobject/gcfinalizedobject/rcobject, or by calling gc::alloc.
...you can qualify references to classes in the library; for example: mmgc::gc, mmgc::gcfinalizedobject.
... gc* gc = gc::getgc(this); gcobject* gcobject; gc class the class mmgc::gc is the main class of the gc.
...And 41 more matches

LiveConnect Overview - Archive of obsolete content
on the java side, javascript objects are wrapped in an instance of the class netscape.javascript.jsobject and passed to java.
...the jsobject class provides an interface for invoking javascript methods and examining javascript properties.
... javascript to java communication when you refer to a java package or class, or work with a java object or array, you use one of the special liveconnect objects.
...And 39 more matches

platform/xpcom - Archive of obsolete content
implementing xpcom interfaces this module exports a class called unknown which implements the fundamental xpcom interface nsisupports.
... by subclassing unknown, either using standard javascript inheritance or using the sdk's heritage module, you can provide your own implementations of xpcom interfaces.
... for example, the add-on below implements the nsiobserver interface to listen for and log all topic notifications: var { class } = require('sdk/core/heritage'); var { unknown } = require('sdk/platform/xpcom'); var { cc, ci } = require('chrome') var observerservice = cc['@mozilla.org/observer-service;1'].
...And 37 more matches

Index - Web APIs
16 abstractrange api, abstract, abstract interface, abstractrange, dom, dom api, interface, range, reference the abstractrange abstract interface is the base class upon which all dom range types are defined.
... 203 audioworkletglobalscope api, audioworkletglobalscope, experimental, interface, reference, web audio api the audioworkletglobalscope interface of the web audio api represents a global execution context for user-supplied code, which defines custom audioworkletprocessor-derived classes.
... 204 audioworkletglobalscope.registerprocessor api, audio, audioworkletglobalscope, audioworkletprocessor, method, reference, web audio api the registerprocessor method of the audioworkletglobalscope interface registers a class constructor derived from audioworkletprocessor interface under a specified name.
...And 37 more matches

Details of the object model - JavaScript
« previousnext » javascript is an object-based language based on prototypes, rather than being class-based.
... class-based vs.
... prototype-based languages class-based object-oriented languages, such as java and c++, are founded on the concept of two distinct entities: classes and instances.
...And 35 more matches

Inheritance in JavaScript - Learn web development
previous overview: objects next with most of the gory details of oojs now explained, this article shows how to create "child" object classes (constructors) that inherit features from their "parent" classes.
... in addition, we present some advice on when and where you might use oojs, and look at how classes are dealt with in modern ecmascript syntax.
... getting started first of all, make yourself a local copy of our oojs-class-inheritance-start.html file (see it running live also).
...And 34 more matches

Box-shadow generator - CSS: Cascading Style Sheets
box-shadow generator html content <div id="container"> <div class="group section"> <div id="layer_manager"> <div class="group section"> <div class="button" data-type="add"> </div> <div class="button" data-type="move-up"> </div> <div class="button" data-type="move-down"> </div> </div> <div id="stack_container"></div> </div> <div id="preview_zone"> <div id="layer_menu" class="col span_12"> <div class="button" id="element" data-type="subject" data-title="element"> element </div> <div class="button" id="before" data-type="subject" dat...
...a-title=":before"> :before <span class="delete" data-type="disable"></span> </div> <div class="button" id="after" data-type="subject" data-title=":after"> :after <span class="delete" data-type="disable"></span> </div> <div class="ui-checkbox" data-topic='before' data-label=":before"></div> <div class="ui-checkbox" data-topic='after' data-label=":after"></div> </div> <div id="preview"> <div id="obj-element"> <div class="content"> </div> <div id="obj-before"> </div> <div id="obj-after"> </div> </div> </div> ...
... </div> </div> <div id="controls" class="group section"> <div class="wrap-left"> <div class="colorpicker category"> <div class="title"> </div> <div id="colorpicker" class="group"> <div id="gradient" class="gradient"> <div id="gradient_picker"> </div> </div> <div id="hue" data-topic="hue" class="hue"> <div id="hue_selector"> </div> </div> <div class="info"> <div class="input" data-topic="hue" data-title='h:' data-action="hsv"></div> <div class="input" data-topic="saturation" data-title='s:' data-action="hsv"></div> <d...
...And 34 more matches

Adding a new event
how to implement an internal event class if you're in case 1 (a simple dom event), you can skip this section.
... define event class name you need to add an event class name in eventclasslist.h.
... use ns_event_class macro for adding it.
...And 33 more matches

An Overview of XPCOM
in areas of code that are tightly-coupled—in classes that are only used internally, for example—the expensive work to divide things may not be worth the effort.
... the http component in gecko doesn't expose private classes it uses as separate components.
...consider, for example, a class that isn't well encapsulated.
...And 32 more matches

Scripting Java
we can test java classes by writing scripts.
... accessing java packages and classes every piece of java code is part of a class.
... every java class is part of a package.
...And 31 more matches

Using XPCOM Utilities to Make Things Easier
the module macros include one set of macros that define the exported nsgetmodule entry point, the required nsimodule implementation code and another that creates a generic factory for your implementation class.
...the four required parts[other-parts] of the structure contain the following information: a human readable class name the class id (cid) the contract id (an optional but recommended argument) a constructor for the given object static const nsmodulecomponentinfo components[] = { { "pretty class name", cid, contract_id, constructor }, // ...
...the usual practice is to put the class id (cid) into a #define and use the define to declare the cid in the components list.
...And 31 more matches

nsIComponentRegistrar
inherits from: nsisupports last changed in gecko 1.0 method overview void autoregister(in nsifile aspec); void autounregister(in nsifile aspec); string cidtocontractid(in nscidref aclass); nscidptr contractidtocid(in string acontractid); nsisimpleenumerator enumeratecids(); nsisimpleenumerator enumeratecontractids(); boolean iscidregistered(in nscidref aclass); boolean iscontractidregistered(in string acontractid); void registerfactory(in nscidref aclass, in string aclassname, in string acontractid, in nsifactory afactory); void registerfactorylocation(in nscidref aclass, in string aclassname, in string acontractid, in nsifi...
...le afile, in string aloaderstr, in string atype); void unregisterfactory(in nscidref aclass, in nsifactory afactory); void unregisterfactorylocation(in nscidref aclass, in nsifile afile); methods autoregister() register a component (.manifest) file or all component files in a directory.
... cidtocontractid() this method returns the contractid corresponding to a given classid.
...And 30 more matches

Bytecode Descriptions
this is used to create the .prototype object for derived classes.
...this is used to define class methods.
...this is used to define the .prototype property on classes.
...And 27 more matches

JSAPI User Guide
lastly, the global object contains all the classes, functions, and variables that are available for javascript code to use.
...the application starts out by creating an object and populating it with the standard javascript classes, like array and object.
... then it adds whatever custom classes, functions, and variables (like window) the application wants to provide; see custom objects below.
...And 27 more matches

Legacy layout methods - Learn web development
<div class="wrapper"> <div class="row"> <div class="col">1</div> <div class="col">2</div> <div class="col">3</div> <div class="col">4</div> <div class="col">5</div> <div class="col">6</div> <div class="col">7</div> <div class="col">8</div> <div class="col">9</div> <div class="col">10</div> <div class="col">11</div> <div class="col">12</div> </div> <div c...
...lass="row"> <div class="col span1">13</div> <div class="col span6">14</div> <div class="col span3">15</div> <div class="col span2">16</div> </div> </div> the aim is to turn this into a demonstration grid of two rows on a twelve column grid — the top row demonstrating the size of the individual columns, the second row some different sized areas on the grid.
... our next step is to create a rule for the class .col, floating it left, giving it a margin-left of 20 pixels to form the gutter, and a width of 60 pixels.
...And 26 more matches

Modularization techniques - Archive of obsolete content
a pure virtual interface is simply a class where every method is defined as pure virtual, that is: virtual int foo(int bar) = 0; pure virtual interfaces provide an easy mechanism for passing function tables between modules that may reside in separate, possibly dynamically loaded, libraries.
... /* * the nsisupports interface */ class nsisupports { public: ns_imethod queryinterface(const nsiid &aiid, void **aresult) = 0; ns_imethod_(nsrefcnt) addref(void) = 0; ns_imethod_(nsrefcnt) release(void) = 0; }; the ns_imethod and ns_imethod_(type) macros are basically shorthand for virtual nsresult and virtualtype.
... factories factories are special classes dedicated to creating instances of classes.
...And 25 more matches

Following the Android Toasts Tutorial from a JNI Perspective
the sig's will be represented as javascript strings in jni.jsm, and the sig's of the types are as follows: java type signature boolean z byte b char c class/object lclass name in slash notation here; double d float f int i long j short s void v array of type [sig here method format (sig of type of each argument here)sig of the return type here declaring a class/object is done in a special way.
... for example, if the class is blah.foo.bar then the signature of this will be this in slash notation with an l and ; around it.
...if there is a sub class such as blah.foo.bar.subclass then a dollar sign is used in the slash notation, so this would be lblah/foo/bar$subclass;.
...And 25 more matches

Index - Archive of obsolete content
55 class xul attributes, xul reference no summary!
... 643 classname xul properties, xul reference no summary!
... 893 style classes xul reference, xul_style_classes no summary!
...And 24 more matches

JavaScript-DOM Prototypes in Mozilla
in the case where the c++ object has class info (nsiclassinfo), the jsobject is a more or less empty jsobject which is not really that special.
... all the methods that are supposed to show up on this jsobject are actually not properties of the object itself, but rather properties of the prototype of the jsobject for the wrapper (unless the c++ object's class info has the flag nsixpcscriptable::dont_share_prototype set, but lets assume that's not the case here).
... all those properties come from the interfaces that the c++ image object (nshtmlimageelement) implements and chooses to expose to xpconnect through the object's class info.
...And 24 more matches

Implementing a Microsoft Active Accessibility (MSAA) Server - Accessibility
might be useful for supporting custom interfaces, need to research] objid_menu objid_queryclassnameidx objid_sizegrip objid_sound objid_sysmenu objid_titlebar objid_vscroll objid_window [important, but implemented automatically by microsoft windows.
...make sure the caret always has the same width (1px or 2px) within a given window class.
...the screen reader vendors actually use the systreeview32 class directly rather than the msaa support for them, and can thus provide better support for native tree views.
...And 23 more matches

Client-side form validation - Learn web development
when an element is valid, the following things are true: the element matches the :valid css pseudo-class, which lets you apply a specific style to valid elements.
... when an element is invalid, the following things are true: the element matches the :invalid css pseudo-class, and sometimes other ui pseudo-classes (e.g., :out-of-range) depending on the error, which lets you apply a specific style to invalid elements.
...when this attribute is set, the element matches the :required ui pseudo-class and the form won't submit, displaying an error message on submission when the input is empty.
...And 22 more matches

Using CSS gradients - CSS: Cascading Style Sheets
<div class="simple-linear"></div> div { width: 120px; height: 120px; } .simple-linear { background: linear-gradient(blue, pink); } changing the direction by default, linear gradients run from top to bottom.
... <div class="horizontal-gradient"></div> div { width: 120px; height: 120px; } .horizontal-gradient { background: linear-gradient(to right, blue, pink); } diagonal gradients you can even make the gradient run diagonally, from corner to corner.
... <div class="diagonal-gradient"></div> div { width: 200px; height: 100px; } .diagonal-gradient { background: linear-gradient(to bottom right, blue, pink); } using angles if you want more control over its direction, you can give the gradient a specific angle.
...And 22 more matches

How to build custom form controls - Learn web development
--> <div class="select" tabindex="0"> <!-- this container will be used to display the current value of the control --> <span class="value">cherry</span> <!-- this container will contain all the options available for our control.
...--> <ul class="optlist"> <!-- each option only contains the value to be displayed, we'll see later how to handle the real value that will be sent with the form data --> <li class="option">cherry</li> <li class="option">lemon</li> <li class="option">banana</li> <li class="option">strawberry</li> <li class="option">apple</li> </ul> </div> note the use of class names; these identify each relevant part regardless of the actual underlying html elements used.
... class names, however, provide no semantic value.
...And 21 more matches

Creating localizable web applications
the language_config class expects arrays of valid languages & supported languages.
...use the dir attribute on the <html/> element and consider using a rtl class on <html/> or <body/> as well, in order to easily change css rules like in the example below.
...'rtl' : 'ltr' ?>" > <body class="<?= $locale?> <?= isrtl($locale) ?
...And 21 more matches

Creating the Component Code
the key to this interface is that the return type of getclassobject does not have to be an nsifactory.
...the interface used in this case is nsiclassinfo.
... the source file for the weblock component contains three classes.
...And 21 more matches

filter - CSS: Cascading Style Sheets
filter: blur(5px) <table class="standard-table"> <thead> <tr> <th style="text-align: left;" scope="col">original image</th> <th style="text-align: left;" scope="col">live example</th> <th style="text-align: left;" scope="col">svg equivalent</th> <th style="text-align: left;" scope="col">static example</th> </tr> </thead> <tbody> <tr> <td><img alt="test_form.jpg" id="img1" class="...
...internal default" src="/files/3710/test_form_2.jpg" style="width: 100%;" /></td> <td><img alt="test_form.jpg" id="img2" class="internal default" src="/files/3710/test_form_2.jpg" style="width: 100%;" /></td> <td> <div class="svg-container"> <svg id="img3" overflow="visible" viewbox="0 0 212 161" color-interpolation-filters="srgb"> <filter id="svgblur" x="-5%" y="-5%" width="110%" height="110%"> <fegaussianblur in="sourcegraphic" stddeviation="3.5"/> </filter> <image xlink:href="/files/3710/test_form_2.jpeg" filter="url(#svgblur)" width="212px" height="161px"/> </svg> </div> </td> <td><img alt="test_form_s.jpg" id="img4" class="internal default" src="/files/3711/test_form_2_s.jpg" style=...
... filter: brightness(2) <svg style="position: absolute; top: -99999px" xmlns="http://www.w3.org/2000/svg"> <filter id="brightness"> <fecomponenttransfer> <fefuncr type="linear" slope="[amount]"/> <fefuncg type="linear" slope="[amount]"/> <fefuncb type="linear" slope="[amount]"/> </fecomponenttransfer> </filter> </svg> <table class="standard-table"> <thead> <tr> <th style="text-align: left;" scope="col">original image</th> <th style="text-align: left;" scope="col">live example</th> <th style="text-align: left;" scope="col">svg equivalent</th> <th style="text-align: left;" scope="col">static example</th> </tr> </thead> <tbody> <tr> <td><img alt="test_form.jpg" id="img1" class="...
...And 21 more matches

Storage access policy: Block cookies from trackers
firefox nightly may also contain experimental features that we don't yet plan to ship to release users; experimental features will not be included in this documentation, but may nevertheless impact the functionality of domains classified as trackers.
... second, firefox uses an additional "entity list", which prevents domains from being classified as trackers when they are loaded on a top-level site owned by the same organization.
... firefox uses the built-in tracking protection url classifier to determine which resources match the tracking protection list.
...And 20 more matches

JSAPI reference
n_latest js_getimplementationversion js_getversion js_setversionforcompartment added in spidermonkey 31 js_stringtoversion js_versiontostring js_setversion obsolete since jsapi 25 js::currentglobalornull added in spidermonkey 31 js_getglobalforscopechain obsolete since jsapi 25 js_getglobalobject obsolete since jsapi 24 js_setglobalobject obsolete since jsapi 25 js_initclass js_initstandardclasses js_resolvestandardclass js_enumeratestandardclasses js_enumerateresolvedstandardclasses obsolete since jsapi 24 js_isrunning js_saveframechain js_restoreframechain js_isassigning obsolete since javascript 1.8.5 js_isconstructing obsolete since jsapi 26 js_isconstructing_possiblywithgiventhisobject obsolete since jsapi 17 js_getscopechain obsolete since...
... javascript 1.8.7 compartments: class jsautocompartment added in spidermonkey 24 js_newglobalobject added in spidermonkey 17 js_entercompartment added in spidermonkey 24 js_leavecompartment added in spidermonkey 24 js_getcompartmentprivate added in spidermonkey 1.8.5 js_setcompartmentprivate added in spidermonkey 1.8.5 js_getglobalforcompartmentornull added in spidermonkey 17 js_iteratecompartments added in spidermonkey 17 js_setdestroycompartmentcallback added in spidermonkey 17 js_setcompartmentnamecallback added in spidermonkey 17 js_newcompartmentandglobalobject added in spidermonkey 1.8.1 obsolete since jsapi 16 js_entercrosscompartmentcall added in spidermonkey 1.8.1 obsolete since jsapi 18 js_leavecrosscompartmentcall added in spidermonkey 1.8.1 obsolete since jsapi 1...
...8 locale callbacks: struct jslocalecallbacks js_getlocalecallbacks js_setlocalecallbacks locale callback types: jslocaletouppercase jslocaletolowercase jslocalecompare jslocaletounicode scripts just running some javascript code is straightforward: class js::compileoptions added in spidermonkey 17 class js::owningcompileoptions added in spidermonkey 31 class js::readonlycompileoptions added in spidermonkey 31 class js::sourcebufferholder added in spidermonkey 31 js::evaluate added in spidermonkey 17 js_evaluatescript obsolete since jsapi 36 js_evaluateucscript obsolete since jsapi 36 js_evaluatescriptforprincipals obsolete since jsapi 30 js_evaluateucscriptforprincipals obsolete since jsapi 30 js_evaluatescriptforprincipalsversion obsolete since jsapi 30 js_eval...
...And 20 more matches

mix-blend-mode - CSS: Cascading Style Sheets
uenormalapplies toall elementsinheritednocomputed valueas specifiedanimation typediscretecreates stacking contextyes formal syntax <blend-mode>where <blend-mode> = normal | multiply | screen | overlay | darken | lighten | color-dodge | color-burn | hard-light | soft-light | difference | exclusion | hue | saturation | color | luminosity examples effect of different mix-blend-mode values <div class="grid"> <div class="col"> <div class="note">blending in isolation (no blending with the background)</div> <div class="row isolate"> <div class="cell"> normal <div class="container normal"> <div class="group"> <div class="item firefox"></div> <svg viewbox="0 0 150 150"> <defs> <lineargradient id="red"> ...
...-color="hsl(120,100%,50%)" /> <stop offset="100%" stop-color="hsl(120,0%,100%)" /> </lineargradient> <lineargradient id="blue"> <stop offset="0" stop-color="hsl(240,100%,50%)" /> <stop offset="100%" stop-color="hsl(240,0%,100%)" /> </lineargradient> </defs> <ellipse class="item r" cx="75" cy="75" rx="25" ry="70"></ellipse> <ellipse class="item g" cx="75" cy="75" rx="25" ry="70"></ellipse> <ellipse class="item b" cx="75" cy="75" rx="25" ry="70"></ellipse> </svg> </div> </div> </div> <div class="cell"> multiply <div class="container multiply"> <div class="group"> <div...
... class="item firefox"></div> <svg viewbox="0 0 150 150"> <ellipse class="item r" cx="75" cy="75" rx="25" ry="70"></ellipse> <ellipse class="item g" cx="75" cy="75" rx="25" ry="70"></ellipse> <ellipse class="item b" cx="75" cy="75" rx="25" ry="70"></ellipse> </svg> </div> </div> </div> <div class="cell"> darken <div class="container darken"> <div class="group"> <div class="item firefox"></div> <svg viewbox="0 0 150 150"> <ellipse class="item r" cx="75" cy="75" rx="25" ry="70"></ellipse> <ellipse class="item g" cx="75" cy="75" rx="25" ry="70"></ellipse> <ellipse class="item b" cx="75" cy="75" rx="25" ry="70"></ellipse> ...
...And 20 more matches

Python binding for NSS
classes are camel-case.
... class names always begin with a upper case letter and are then followed by a mix of lower and upper case letters, a upper case letter is used to separate words.
... every module, class, function, and method has associated documentation and is exposed via the standard python methodology.
...And 19 more matches

XPCOM array guide
introduction array types mozilla has many array classes because each array is optimized for a particular usage pattern.
... this guide describes the available arrays as well as the enumerator classes that can be used to get to them.
... the standard array classes are: nsiarray - a scriptable container for scriptable xpcom objects.
...And 19 more matches

The libmime module
there is a class for each mime type, and each class is responsible for parsing itself, and/or handing the input data off to one of its child objects.
... the definition of these classes is somewhat idiosyncratic and consists of an internally defined object system, instead of c++.
... there is one header file and one source file for each class (for example, the mimeinlinetext class is defined in "mimetext.h" and "mimetext.c".) each header file follows the following boiler-plate form: typedefs these come first to avoid circular dependencies.
...And 19 more matches

Linear-gradient Generator - CSS: Cascading Style Sheets
linear-gradient generator html content <div id="container"> <div id="gradient-container" data-alpha="true"> </div> <div id="controls"> <div class="section"> <div class="title"> active point </div> <div class="property"> <div class="ui-input-slider" data-topic="point-position" data-info="position" data-unit="px" data-min="-1000" data-value="0" data-max="1000" data-sensivity="5"></div> <div id="delete-point" class="button"> delete point </div> </div> <div class="ui-color-picker" data-topic="picker"></div> </div> <div class="section"> <div class="title"> active axis </div> ...
... <div class="property"> <div class="name"> axis unit </div> <div class="ui-dropdown" data-topic="axis-unit" data-selected="1"> <div data-value='px'> pixels (px) </div> <div data-value='%'> percentage (%) </div> </div> <div id="delete-axis" class="button"> delete line </div> </div> <div class="property"> <div class="ui-slider" data-topic="axis-rotation" data-info="rotation" data-min="-180" data-value="0" data-max="180"></div> </div> </div> <div id="tool-section" class="section"> <div class="title"> tool settings </div> <div...
... class="property"> <div class="name"> alpha background </div> <div id="canvas-bg"></div> <div id="add-axis" class="button"> add line </div> </div> <div id="order"> <div id="gradient-axes"></div> <div id="gradient-order"></div> </div> </div> </div> <div id="output"> <div class="css-property"> <span class="property">background:</span> <span class="value"></span> </div> </div> </div> css content /* * color picker tool */ .ui-color-picker { width: 420px; margin: 0; border: 1px solid #ddd; background-color: #fff; display: table; -moz-user-select: ...
...And 19 more matches

jspage - Archive of obsolete content
;}var browser=$merge({engine:{name:"unknown",version:0},platform:{name:(window.orientation!=undefined)?"ipod":(navigator.platform.match(/mac|win|linux/i)||["other"])[0].tolowercase()},features:{xpath:!!(document.evaluate),air:!!(window.runtime),query:!!(document.queryselector)},plugins:{},engines:{presto:function(){return(!window.opera)?false:((arguments.callee.caller)?960:((document.getelementsbyclassname)?950:925)); },trident:function(){return(!window.activexobject)?false:((window.xmlhttprequest)?((document.queryselectorall)?6:5):4);},webkit:function(){return(navigator.taintenabled)?false:((browser.features.xpath)?((browser.features.query)?525:420):419); },gecko:function(){return(!document.getboxobjectfor&&window.mozinnerscreenx==null)?false:((document.getelementsbyclassname)?19:18);}}},brows...
...2,backspace:8,tab:9,"delete":46});event.implement({stop:function(){return this.stoppropagation().preventdefault(); },stoppropagation:function(){if(this.event.stoppropagation){this.event.stoppropagation();}else{this.event.cancelbubble=true;}return this;},preventdefault:function(){if(this.event.preventdefault){this.event.preventdefault(); }else{this.event.returnvalue=false;}return this;}});function class(b){if(b instanceof function){b={initialize:b};}var a=function(){object.reset(this);if(a._prototyping){return this; }this._current=$empty;var c=(this.initialize)?this.initialize.apply(this,arguments):this;delete this._current;delete this.caller;return c;}.extend(this); a.implement(b);a.constructor=class;a.prototype.constructor=a;return a;}function.prototype.protect=function(){this._protected=true;...
...return this;};object.reset=function(a,c){if(c==null){for(var e in a){object.reset(a,e); }return a;}delete a[c];switch($type(a[c])){case"object":var d=function(){};d.prototype=a[c];var b=new d;a[c]=object.reset(b);break;case"array":a[c]=$unlink(a[c]); break;}return a;};new native({name:"class",initialize:class}).extend({instantiate:function(b){b._prototyping=true;var a=new b;delete b._prototyping;return a; },wrap:function(a,b,c){if(c._origin){c=c._origin;}return function(){if(c._protected&&this._current==null){throw new error('the method "'+b+'" cannot be called.'); }var e=this.caller,f=this._current;this.caller=f;this._current=arguments.callee;var d=c.apply(this,arguments);this._current=f;this.caller=e;return d;}.extend({_owner:a,_origin:c,_name:b}); }});class.implement({implement:function(a,d)...
...And 18 more matches

Skinning XUL Files by Hand - Archive of obsolete content
following the instructions here, you are going to create a skin for a xul file and apply it by specifying classes for all of the interested elements.
...as you will see, css provides a lot of flexibility for defining styles to individual elements, to classes of elements, to pseudo-classes, and to anonymous classes.
...mozilla's current global skin defines this basic behavior for several classes of button.
...And 18 more matches

CSS FAQ - Learn web development
what is the difference between id and class?
... html elements can have an id and/or class attribute.
...the class attribute assigns a class name to the element, and that name can be used on many elements within the page.
...And 18 more matches

IME handling guide
mozilla::widget::texteventdispatcher this class is used by native ime handler(s) on each platform.
...for example, if widgetkeyboardevent should be dispatched when there is a composition is managed by this class in xp level.
...so, native ime handlers using this class means that the dispatching part is also tested by automated tests.
...And 18 more matches

Detailed XPCOM hashtable guide
mozilla's hashtable implementations mozilla has several hashtable implementations, which have been tested and, tuned, and hide the inner complexities of hashtable implementations: pldhash - low-level c api; stores keys and data in one large memory structure; uses the heap efficiently; client must declare an "entry class" and may not hold onto entry pointers.
... plhashtable - low-level c api; entry class pointers are constant; more efficient for large entry structures; often wastes memory making many small heap allocations.
...client writes their own entry class which can include complex key and data types.
...And 18 more matches

Cascade and inheritance - Learn web development
a class selector is more specific — it will select only the elements on a page that have a specific class attribute value — so will get a higher score.
...the below h1 ends up being colored red — the class selector gives its rule a higher specificity, and so it will be applied even though the rule with the element selector appears further down in the source order.
...we have then added a class of special to the second nested list and applied a different color to it.
...And 17 more matches

Multiple-column layout - Learn web development
our starting point contains some very simple html; a wrapper with a class of container inside which is a heading and some paragraphs.
... the <div> with a class of container will become our multicol container.
... column-count example body { width: 90%; max-width: 900px; margin: 2em auto; font: .9em/1.2 arial, helvetica, sans-serif; } <div class="container"> <h1>simple multicol example</h1> <p> lorem ipsum dolor sit amet, consectetur adipiscing elit.
...And 17 more matches

Color picker tool - CSS: Cascading Style Sheets
colorpicker tool html <div id="container"> <div id="palette" class="block"> <div id="color-palette"></div> <div id="color-info"> <div class="title"> css color </div> </div> </div> <div id="picker" class="block"> <div class="ui-color-picker" data-topic="picker" data-mode="hsl"></div> <div id="picker-samples" sample-id="master"></div> <div id="controls"> <div id="delete"> <div id="trash-can"></div> </div> <div id="void-sample" class="icon"></div> </div> </div> <div id="canvas" data-tutorial="drop"> <div id="zindex" class="ui-input-slider" data-topic="z-index" data...
... #zindex input { border: 1px solid #ddd; font-size: 16px; color: #777; } #zindex .ui-input-slider-info { width: 60px; } #zindex[data-active='true'] { top: 0; opacity: 1; } javascript content 'use strict'; var uicolorpicker = (function uicolorpicker() { function getelembyid(id) { return document.getelementbyid(id); } var subscribers = []; var pickers = []; /** * rgba color class * * hsv/hsb and hsl (hue, saturation, value / brightness, lightness) * @param hue 0-360 * @param saturation 0-100 * @param value 0-100 * @param lightness 0-100 */ function color(color) { if(color instanceof color === true) { this.copy(color); return; } this.r = 0; this.g = 0; this.b = 0; this.a = 1; this.hue = 0; this.saturation = 0; this.value = 0; ...
...==== capture mouse movement ==========*/ var setmousetracking = function setmousetracking(elem, callback) { elem.addeventlistener('mousedown', function(e) { callback(e); document.addeventlistener('mousemove', callback); }); document.addeventlistener('mouseup', function(e) { document.removeeventlistener('mousemove', callback); }); }; /*====================*/ // color picker class /*====================*/ function colorpicker(node) { this.color = new color(); this.node = node; this.subscribers = []; var type = this.node.getattribute('data-mode'); var topic = this.node.getattribute('data-topic'); this.topic = topic; this.picker_mode = (type === 'hsl') ?
...And 17 more matches

Microformats - HTML: Hypertext Markup Language
the properties are carried in class attributes that can be added to any html element, while the data values re-use html element content and semantic attributes.
... to create a microformats object, h-* class names are used in the class attribute.
... to add a property to an object, the p-*, u-*, dt-*, e-* class names are used on one of the object's descendants.
...And 17 more matches

requiredFeatures - SVG: Scalable Vector Graphics
ure#basicfont the browser supports the <font>, <font-face>, <glyph>, <missing-glyph>, <hkern>, <font-face-src> and <font-face-name> elements http://www.w3.org/tr/svg11/feature#extensibility the browser supports the <foreignobject> element example svg <svg width="450" height="1170" xmlns="http://www.w3.org/2000/svg"> <!-- testing : http://www.w3.org/tr/svg11/feature#svg --> <rect class="ko" x="10" y="10" height="25" width="430" /> <rect class="ok" x="10" y="10" height="25" width="430" requiredfeatures="http://www.w3.org/tr/svg11/feature#svg" /> <text x="20" y="27">http://www.w3.org/tr/svg11/feature#svg</text> <!-- testing : http://www.w3.org/tr/svg11/feature#svgdom --> <rect class="ko" x="10" y="35" height="25" width="430" /> <rect class="ok" x="10" y="35" height=...
..."25" width="430" requiredfeatures="http://www.w3.org/tr/svg11/feature#svgdom" /> <text x="20" y="52">http://www.w3.org/tr/svg11/feature#svgdom</text> <!-- testing : http://www.w3.org/tr/svg11/feature#svg-static --> <rect class="ko" x="10" y="60" height="25" width="430" /> <rect class="ok" x="10" y="60" height="25" width="430" requiredfeatures="http://www.w3.org/tr/svg11/feature#svg-static" /> <text x="20" y="77">http://www.w3.org/tr/svg11/feature#svg-static</text> <!-- testing : http://www.w3.org/tr/svg11/feature#svgdom-static --> <rect class="ko" x="10" y="85" height="25" width="430" /> <rect class="ok" x="10" y="85" height="25" width="430" requiredfeatures="http://www.w3.org/tr/svg11/feature#svgdom-static" /> <text x="20" y="102">http://www.w3.org/tr/svg11/fe...
...ature#svgdom-static</text> <!-- testing : http://www.w3.org/tr/svg11/feature#svg-animation --> <rect class="ko" x="10" y="110" height="25" width="430" /> <rect class="ok" x="10" y="110" height="25" width="430" requiredfeatures="http://www.w3.org/tr/svg11/feature#svg-animation" /> <text x="20" y="127">http://www.w3.org/tr/svg11/feature#svg-animation</text> <!-- testing : http://www.w3.org/tr/svg11/feature#svgdom-animation --> <rect class="ko" x="10" y="135" height="25" width="430" /> <rect class="ok" x="10" y="135" height="25" width="430" requiredfeatures="http://www.w3.org/tr/svg11/feature#svgdom-animation" /> <text x="20" y="152">http://www.w3.org/tr/svg11/feature#svgdom-animation</text> <!-- testing : http://www.w3.org/tr/svg11/feature#svg-dynamic --> <rect class...
...And 17 more matches

Border-image generator - CSS: Cascading Style Sheets
border image generator html content <div id="container"> <div id="gallery"> <div id="image-gallery"> <img class="image" src="https://udn.realityripple.com/samples/2c/fa0192d18e.png" data-stateid="border1"/> <img class="image" src="https://udn.realityripple.com/samples/b8/dacdd63e77.png" data-stateid="border2"/> <img class="image" src="https://udn.realityripple.com/samples/07/1fcc357205.png" data-stateid="border3"/> <img class="image" src="https://udn.realityripple.com/samples/7b/dd37c1d691.png" data-stateid="border4"/> <img class="image" src="https://udn.realityripple.com/samples/a9/b9fff72dab.png" data-stateid="border5"...
.../> <img class="image" src="https://udn.realityripple.com/samples/fb/c0b285d3da.svg" data-stateid="border6"/> </div> </div> <div id="load-actions" class="group section"> <div id="toggle-gallery" data-action="hide"> </div> <div id="load-image" class="button"> upload image </div> <input id="remote-url" type="text" placeholder="load an image from url"/> <div id="load-remote" class="button"> </div> </div> <div id="general-controls" class="group section"> <div class="name"> control box </div> <div class="separator"></div> <div class="property"> <div class="name">scale</div> <div class="ui-input-slider" data-topic="scale" ...
... data-unit="%" data-max="300" data-sensivity="10"> </div> </div> <div class="separator"></div> <div class="property"> <div class="name">draggable</div> <div class="ui-checkbox" data-topic='drag-subject'></div> </div> <div class="property right"> <div class="name">section height</div> <div class="ui-input-slider" data-topic="preview-area-height" data-min="400" data-max="1000"> </div> </div> </div> <div id="preview_section" class="group section"> <div id="subject"> <div class="guideline" data-axis="y" data-topic="slice-top"></div> <div c...
...And 16 more matches

Using custom elements - Web Components
a class object that defines the behaviour of the element.
... so for example, we can define a custom word-count element like this: customelements.define('word-count', wordcount, { extends: 'p' }); the element is called word-count, its class object is wordcount, and it extends the <p> element.
... a custom element's class object is written using standard es 2015 class syntax.
...And 16 more matches

Floats - Learn web development
first, we'll start off with some simple html — add the following to your html body, removing anything that was inside there before: <h1>simple float example</h1> <div class="box">float</div> <p>lorem ipsum dolor sit amet, consectetur adipiscing elit.
...to float the text around it add the float and margin-right properties to the .box rule: .box { float: left; margin-right: 15px; width: 150px; height: 100px; border-radius: 5px; background-color: rgb(207,232,220); padding: 1em; } now if you save and refresh you'll see something like the following: float example 1 <h1>simple float example</h1> <div class="box">float</div> <p>lorem ipsum dolor sit amet, consectetur adipiscing elit.
... add a class of special to the first paragraph of text, the one immediately following the floated box, then in your css add the following rules.
...And 15 more matches

JNI.jsm
method overview cdata getforthread(); cdata loadclass(cdata ajenv, string aclassfullyqualifiedname, [optional] object adeclares); cdata newstring(cdata ajenv, string astr); string readstring(cdata ajenv, cdata ajavastring); void unloadclasses(); methods getforthread() blah blah cdata getforthread(); parameters this function does not take any arguments.
... return value blah blah loadclass() blah blah cdata loadclass( ajenv, afullyqualifiedname, [optional] object adeclares ); parameters ajenv the return value of getforthread().
... afullyqualifiedname a sig of a typed array or the name of the class that would be used in a signature, but without the surrounding l and ;.
...And 15 more matches

GC Rooting Guide
if you use these types directly, or create classes, structs or arrays that contain them, you must follow the rules set out in this guide.
... gc things on the stack js::rooted<t> all gc thing pointers stored on the stack (i.e., local variables and parameters to functions) must use the js::rooted<t> class.
... this is a template class where the template parameter is the type of the gc thing it contains.
...And 15 more matches

Interfacing with the XPCOM cycle collector
this is a quick overview of the cycle collector introduced into xpcom for firefox 3, including a description of the steps involved in modifying an existing c++ class to participate in xpcom cycle collection.
... if you have a class that you think is involved in a cyclical-ownership leak, this page is for you.
...in this stage the collector repeatedly asks each candidate for a singleton cycle-collection helper class, and if that helper exists, the collector asks the helper to describe the candidate's (owned) children.
...And 15 more matches

nsIXPConnect
lags); nsixpconnectwrappednative getwrappednativeofjsobject(in jscontextptr ajscontext, in jsobjectptr ajsobj); nsixpconnectwrappednative getwrappednativeofnativeobject(in jscontextptr ajscontext, in jsobjectptr ascope, in nsisupports acomobj, in nsiidref aiid); nsixpconnectjsobjectholder getwrappednativeprototype(in jscontextptr ajscontext, in jsobjectptr ascope, in nsiclassinfo aclassinfo); jsval getwrapperforobject(in jscontextptr ajscontext, in jsobjectptr aobject, in jsobjectptr ascope, in nsiprincipal aprincipal, in unsigned long afilenameflags); native code only!
... obsolete since gecko 2.0 void getxpcwrappednativejsclassinfo(out jsequalityop equality); nsixpconnectjsobjectholder holdobject(in jscontextptr ajscontext, in jsobjectptr aobject); void initclasses(in jscontextptr ajscontext, in jsobjectptr aglobaljsobj); nsixpconnectjsobjectholder initclasseswithnewwrappedglobal(in jscontextptr ajscontext, in nsisupports acomobj, in nsiidref aiid, in nsiprincipal aprincipal, in nsisupports aextraptr, in pruint32 aflags); nsivariant jstovariant(in jscontextptr ctx, in jsval value); nsivariant jsvaltovariant(in jscontextptr cx, in jsvalptr ajsval); ...
...entscopeawarewrappers(in jscontextptr ajscontext, in jsobjectptr aoldscope, in jsobjectptr anewscope); obsolete since gecko 1.9.1 nsixpconnectjsobjectholder reparentwrappednativeiffound(in jscontextptr ajscontext, in jsobjectptr ascope, in jsobjectptr anewparent, in nsisupports acomobj); void restorewrappednativeprototype(in jscontextptr ajscontext, in jsobjectptr ascope, in nsiclassinfo aclassinfo, in nsixpconnectjsobjectholder aprototype); void setdebugmodewhenpossible(in prbool mode); native code only!
...And 15 more matches

Using Objective-C from js-ctypes
$ clang -framework appkit test.m && ./a.out class, message, and selector our task at hand is to convert objective-c syntax to c syntax.
... let's look at the following codelet: [nsspeechsynthesizer alloc] it passes an alloc message to the nsspeechsynthesizer class, in objective-c syntax.
... it performs the following through this objective-c syntax: get the nsspeechsynthesizer class definition.
...And 15 more matches

Getting Started - Archive of obsolete content
extract theme while you can hypothetically begin with any theme already designed for seamonkey 2, for the sake of consistency we'll speak as though everyone is editing classic (default seamonkey theme).
... this is located in the file classic.jar found in the seamonkey 2 installation directory.
...however, if your application doesn't detect classic.jar as a standard zip archive, rename the file classic.zip and continue extraction.
...And 14 more matches

IPDL Tutorial
the ppluginparent and ppluginchild classes are abstract classes that must be subclassed.
...each incoming message is a pure-virtual c++ method which must be implemented: class ppluginparent { public: bool sendinit(const nscstring& pluginpath) { // generated code to send an init() message } bool sendshutdown() { // generated code to send a shutdown() message } protected: /** * a subclass of ppluginparent must implement this method to handle the ready() message.
... */ bool recvready() = 0; }; class ppluginchild { protected: bool recvinit(const nscstring& pluginpath) = 0; bool recvshutdown() = 0; public: bool sendready() { // generated code to send a ready() message } }; these parent and child abstract classes take care of all the "protocol layer" concerns: serializing data, sending and receiving messages, and checking protocol safety.
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BloatView
reading individual bloat logs full bloatview output contains per-class statistics on allocations and refcounts, and provides gross numbers on the amount of memory being leaked broken down by class.
... == bloatview: all (cumulative) leak and bloat statistics, tab process 1862 |<----------------class--------------->|<-----bytes------>|<----objects---->| | | per-inst leaked| total rem| 0 |total | 17 2484|253953338 38| 17 |asynctransactiontrackersholder | 40 40| 10594 1| 78 |compositorchild | 472 472| 1 1| 79 |condvar | 24 48| 3086 2| 279 |messagepump | 8 8| 30 1| 285 |mutex | 20 60| 89987 3| 302 |pcompositorchild ...
... the first, numerical column is the index of the leaking class.
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core/heritage - Archive of obsolete content
reading or writing such code requires sharp eye and lot's of discipline, mainly due to code fragmentation and lots of machinery being exposed: // defining a simple class function dog(name) { // classes are for creating instances, calling them without `new` changes // behavior, which in majority cases you need to handle, so you end up // with additional boilerplate.
...ruff!' }; // subclassing a `dog` function pet(name, breed) { // once again we do our little dance if (!(this instanceof pet)) return new pet(name, breed); dog.call(this, name); this.breed = breed; } // to subclass, you need to make another special dance with special // 'prototype' properties.
... class module exports class utility function for making constructor functions with a proper prototype chain setup in declarative manner: var { class } = require('sdk/core/heritage'); var dog = class({ initialize: function initialize(name) { this.name = name; }, type: 'dog', bark: function bark() { return 'ruff!
...And 13 more matches

Using the Right Markup to Invoke Plugins - Archive of obsolete content
here's an example of this kind of usage for ie: <!-- ie only code --> <object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0" width="366" height="142" id="myflash"> <param name="movie" value="javascript-to-flash.swf" /> <param name="quality" value="high" /> <param name="swliveconnect" value="true" /> </object> in the above example, the classid attribute that goes alo...
...in fact, the above usage will also work for ie, which understands mime type invocations for certain mime types such as flashin addition to activex-style classid invocations.
...furthermore, ie's use of the codebase attribute as an obtainment mechanism itself is not strictly correct according to the html 4.01 specification, which says that the codebase attribute should be used to qualify urns referenced by the data, archive, and classid attributes.
...And 13 more matches

Starting WebLock
xxx what is example 2?following example 2, you change the class definition to support the nsiobserver interface and change ns_impl_isupports1 so that the queryinterface implementation knows that the component also supports nsiobserver.
... the weblock class definition with support for startup observation is below.
... class weblock: public nsiobserver { public: weblock(); virtual ~weblock(); ns_decl_isupports ns_decl_nsiobserver }; ns_impl_isupports1(weblock, nsiobserver); the standard implementation of observe() simply compares the atopic string with the value defined by the event the object is expecting.
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Using CSS transitions - CSS: Cascading Style Sheets
transition-duration: 0.5s <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 left top transform -webkit-transform color; -webkit-transition-duration: 0.5s; -we...
...kit-transform color; -webkit-transition-duration: 0.5s; -webkit-transition-timing-function: ease-in-out; transition-property: width 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; fo...
...ransform transform color; -webkit-transition-duration: 1s; -webkit-transition-timing-function: ease-in-out; transition-property: 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; fo...
...And 13 more matches

Index - MDN Web Docs Glossary: Definitions of Web-related terms
78 class codingscripting, glossary in object-oriented programming, a class defines an object's characteristics.
... class is a template definition of an object's properties and methods, the "blueprint" from which other more specific instances of the object are drawn.
... 88 constructor codingscripting, glossary a constructor belongs to a particular class object that is instantiated.
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How to embed the JavaScript engine
spidermonkey 24 // following code might be needed in some case // #define __stdc_limit_macros // #include <stdint.h> #include "jsapi.h" /* the class of the global object.
... */ static jsclass global_class = { "global", jsclass_global_flags, js_propertystub, js_deletepropertystub, js_propertystub, js_strictpropertystub, js_enumeratestub, js_resolvestub, js_convertstub, }; int main(int argc, const char *argv[]) { jsruntime *rt = js_newruntime(8l * 1024 * 1024, js_use_helper_threads); if (!rt) return 1; jscontext *cx = js_newcontext(rt, 8192); if (!cx) return 1; { // scope for our various stack objects (jsautorequest, rootedobject), so they all go // out of scope before we js_destroycontext.
... jsautorequest ar(cx); // in practice, you would want to exit this any // time you're spinning the event loop js::rootedobject global(cx, js_newglobalobject(cx, &global_class, nullptr)); if (!global) return 1; js::rootedvalue rval(cx); { // scope for jsautocompartment jsautocompartment ac(cx, global); js_initstandardclasses(cx, global); const char *script = "'hello'+'world, it is '+new date()"; const char *filename = "noname"; int lineno = 1; bool ok = js_evaluatescript(cx, global, script, strlen(script), filename, lineno, rval.address()); if (!ok) return 1; } jsstring *str = rval.tostring(); printf("%s\n", js_encodestring(cx, str)); }...
...And 12 more matches

Auto-placement in CSS Grid Layout - CSS: Cascading Style Sheets
* {box-sizing: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } .wrapper { display: grid; grid-template-columns: repeat(3, 1fr); grid-gap: 10px; } <div class="wrapper"> <div>one</div> <div>two</div> <div>three</div> <div>four</div> <div>five</div> </div> default rules for auto-placement as you can see with the above example, if you create a grid all child items will lay themselves out one into each grid cell.
...to cause all created rows to be 100 pixels tall for example you would use: * {box-sizing: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } <div class="wrapper"> <div>one</div> <div>two</div> <div>three</div> <div>four</div> <div>five</div> </div> .wrapper { display: grid; grid-template-columns: repeat(3, 1fr); grid-gap: 10px; grid-auto-rows: 100px; } you can use minmax() in your value for grid-auto-rows enabling the creation of rows that are a minimum size but then grow to fit content if it is taller.
... * {box-sizing: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } <div class="wrapper"> <div>one</div> <div>two</div> <div>three</div> <div>four <br>this cell <br>has extra <br>content.
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File I/O - Archive of obsolete content
creating an nsifile object components.utils.import("resource://gre/modules/fileutils.jsm"); var file = new fileutils.file("/home"); or the same without using fileutils.jsm: var file = components.classes["@mozilla.org/file/local;1"].
...var file = components.classes["@mozilla.org/file/directory_service;1"].
...write to prefs var relfile = components.classes["@mozilla.org/pref-relativefile;1"].
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Chapter 5: Let's build a Firefox extension - Archive of obsolete content
var gmyextensionbundle = components.classes["@mozilla.org/intl/stringbundle;1"].getservice(components.interfaces.nsistringbundleservice); var _bundle = gmyextensionbundle.createbundle("chrome://myextension/locale/myextension.properties") you can now use your string substitutes in the .js where they are needed: see examples below if ( password == userpassword ) { oprefs.setboolpref("access.authenticated", true); } else { alert (...
... listing 10: additional content for chrome.manifest skin helloworld classic/1.0 skin/classic/ style chrome://browser/content/browser.xul chrome://helloworld/skin/overlay.css style chrome://global/content/customizetoolbar.xul chrome://helloworld/skin/overlay.css register skin package (skin instruction) line 1 beginning skin is used to register the skin package; helloworld is the package name; skin/classic/ is the relative path to the folder containing the source file...
...s; classic/1.0 indicates that this skin package is meant for the firefox standard theme.
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Creating a Skin for Firefox/Getting Started - Archive of obsolete content
this is located in the file classic.jar found in the firefox installation directory.
...however, if your application doesn't detect classic.jar as a standard zip archive, rename the file classic.zip and continue extraction.
... classic.jar locations linux: /usr/lib/mozillafirefox/chrome/classic.jar or /usr/lib/firefox-*.*.*/chrome/classic.jar windows: \program files\mozilla firefox\chrome\classic.jar for mac os x: go to your applications folder control click application icon(firefox icon), choose show package contents.
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Introduction to CSS layout - Learn web development
the html markup below gives us a containing element, with a class of wrapper, inside which are three <div> elements.
... flexbox example 1 * {box-sizing: border-box;} .wrapper > div { border-radius: 5px; background-color: rgb(207,232,220); padding: 1em; } .wrapper { display: flex; } <div class="wrapper"> <div class="box1">one</div> <div class="box2">two</div> <div class="box3">three</div> </div> in addition to the above properties that can be applied to the flex container, there are properties that can be applied to the flex items.
... flexbox example 2 * {box-sizing: border-box;} .wrapper > div { border-radius: 5px; background-color: rgb(207,232,220); padding: 1em; } .wrapper { display: flex; } .wrapper > div { flex: 1; } <div class="wrapper"> <div class="box1">one</div> <div class="box2">two</div> <div class="box3">three</div> </div> note: this has been a very short introduction to what is possible in flexbox, to find out more, see our flexbox article.
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Video and Audio APIs - Learn web development
you'll see a number of features; the html is dominated by the video player and its controls: <div class="player"> <video controls> <source src="video/sintel-short.mp4" type="video/mp4"> <source src="video/sintel-short.webm" type="video/webm"> <!-- fallback content here --> </video> <div class="controls"> <button class="play" data-icon="p" aria-label="play pause toggle"></button> <button class="stop" data-icon="s" aria-label="stop"></button> <div class="timer"> <d...
...iv></div> <span aria-label="timer">00:00</span> </div> <button class="rwd" data-icon="b" aria-label="rewind"></button> <button class="fwd" data-icon="f" aria-label="fast forward"></button> </div> </div> the whole player is wrapped in a <div> element, so it can all be styled as one unit if needed.
... each <button> has a class name, a data-icon attribute for defining what icon should be shown on each button (we'll show how this works in the below section), and an aria-label attribute to provide an understandable description of each button, since we're not providing a human-readable label inside the tags.
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Object-oriented JavaScript for beginners - Learn web development
previous overview: objects next with the basics out of the way, we'll now focus on object-oriented javascript (oojs) — this article presents a basic view of object-oriented programming (oop) theory, then explores how javascript emulates object classes via constructor functions, and how to create object instances.
... creating actual objects from our class, we can create object instances — objects that contain the data and functionality defined in the class.
... from our person class, we can now create some actual people: when an object instance is created from a class, the class's constructor function is run to create it.
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Componentizing our Svelte app - Learn web development
add the following content into the file: <script> export let filter = 'all' </script> <div class="filters btn-group stack-exception"> <button class="btn toggle-btn" class:btn__primary={filter === 'all'} aria-pressed={filter === 'all'} on:click={()=> filter = 'all'} > <span class="visually-hidden">show</span> <span>all</span> <span class="visually-hidden">tasks</span> </button> <button class="btn toggle-btn" class:btn__primary={filter === 'active'} aria-pressed={filter === '...
...active'} on:click={()=> filter = 'active'} > <span class="visually-hidden">show</span> <span>active</span> <span class="visually-hidden">tasks</span> </button> <button class="btn toggle-btn" class:btn__primary={filter === 'completed'} aria-pressed={filter === 'completed'} on:click={()=> filter = 'completed'} > <span class="visually-hidden">show</span> <span>completed</span> <span class="visually-hidden">tasks</span> </button> </div> back in our todos.svelte component, we want to make use of our filterbutton component.
... put the following contents inside this file: <script> export let todo </script> <div class="stack-small"> <div class="c-cb"> <input type="checkbox" id="todo-{todo.id}" on:click={() => todo.completed = !todo.completed} checked={todo.completed} /> <label for="todo-{todo.id}" class="todo-label">{todo.name}</label> </div> <div class="btn-group"> <button type="button" class="btn"> edit <span class="visually-hidden">{todo.name}</span> </button> ...
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Styling Vue components with CSS - Learn web development
border-color: #bd2130; } .btn__filter { border-color: lightgrey; } .btn__danger:focus { outline-color: #c82333; } .btn__primary { color: #fff; background-color: #000; } .btn-group { display: flex; justify-content: space-between; } .btn-group > * { flex: 1 1 auto; } .btn-group > * + * { margin-left: 0.8rem; } .label-wrapper { margin: 0; flex: 0 0 100%; text-align: center; } [class*="__lg"] { display: inline-block; width: 100%; font-size: 1.9rem; } [class*="__lg"]:not(:last-child) { margin-bottom: 1rem; } @media screen and (min-width: 620px) { [class*="__lg"] { font-size: 2.4rem; } } .visually-hidden { position: absolute; height: 1px; width: 1px; overflow: hidden; clip: rect(1px 1px 1px 1px); clip: rect(1px, 1px, 1px, 1px); clip-path: rect(1px,...
... 1px, 1px, 1px); white-space: nowrap; } [class*="stack"] > * { margin-top: 0; margin-bottom: 0; } .stack-small > * + * { margin-top: 1.25rem; } .stack-large > * + * { margin-top: 2.5rem; } @media screen and (min-width: 550px) { .stack-small > * + * { margin-top: 1.4rem; } .stack-large > * + * { margin-top: 2.8rem; } } /* end global styles */ #app { background: #fff; margin: 2rem 0 4rem 0; padding: 1rem; padding-top: 0; position: relative; box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.2), 0 2.5rem 5rem 0 rgba(0, 0, 0, 0.1); } @media screen and (min-width: 550px) { #app { padding: 4rem; } } #app > * { max-width: 50rem; margin-left: auto; margin-right: auto; } #app > form { max-width: 100%; } #app h1 { display: block; min-width: 100%; width: 10...
... adding css classes in vue we should apply the button css classes to the <button> in our todoform component.
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XPCOMUtils.jsm
to use this, you first need to import the code module into your javascript scope: components.utils.import("resource://gre/modules/xpcomutils.jsm"); using xpcomutils exposing a javascript class as a component using these utility methods requires four key steps: import xpcomutils.jsm, as explained previously.
... declare the class (or multiple classes) implementing the component(s).
... pseudocode this section provides some pseudocode that demonstrates how to put together a javascript class based on the steps listed above.
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Rhino JavaScript compiler
overview the javascript compiler translates javascript source into java class files.
... the resulting java class files can then be loaded and executed at another time, providing a convenient method for transferring javascript, and for avoiding translation cost.
... compiler command line java org.mozilla.javascript.tools.jsc.main [options] file1.js [file2.js...] where options are: -extends java-class-name specifies that a java class extending the java class java-class-name should be generated from the incoming javascript source file.
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Component Internals
it gets called during registration and unregistration of the component, and when xpcom wants to discover what interfaces or classes the module/library implements.
... component manifests the component manifest is a mapping of files to components and components to classes.
... it specifies the following information: location on disk of registered components with file size class id to location mapping contract id to class id mapping the component manifest maps component files to unique identifiers for the specific implementations (class ids), which in turn are mapped to more general component identifiers (contract ids).
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Using the CSS Painting API - Web APIs
the second parameter is the class that does all the magic, defining the context options and what to paint to the two-dimensional canvas that will be our image.
... registerpaint('headerhighlight', class { /* define if alphatransparency is allowed alpha is set to true by default.
... */ paint(ctx) { ctx.fillstyle = 'hsla(55, 90%, 60%, 1.0)'; ctx.fillrect(0, 15, 200, 20); /* order: x, y, w, h */ } }); in this class example we have defined a single context option with the contextoptions() function: we returned a simple object stating alpha transparency is allowed.
...And 11 more matches

SVG and CSS - SVG: Scalable Vector Graphics
op id="fade-stop-1" offset="33%"/> <stop id="fade-stop-2" offset="95%"/> </radialgradient> </defs> <text id="heading" x="-280" y="-270">svg demonstration</text> <text id="caption" x="-280" y="-250">move your mouse pointer over the flower.</text> <g id="flower"> <circle id="overlay" cx="0" cy="0" r="200" stroke="none" fill="url(#fade)"/> <g id="outer-petals"> <g class="quadrant"> <g class="segment"> <path class="segment-fill" d="m0,0 v-200 a40,40 0 0,0 -62,10 z"/> <path class="segment-edge" d="m0,-200 a40,40 0 0,0 -62,10"/> </g> <g class="segment" transform="rotate(18)"> <path class="segment-fill" d="m0,0 v-200 a40,40 0 0,0 -62,10 z"/> <path class="segment-edge" d="m0,-200 a40,40 0 0,0 -62,10"/> ...
... </g> <g class="segment" transform="rotate(36)"> <path class="segment-fill" d="m0,0 v-200 a40,40 0 0,0 -62,10 z"/> <path class="segment-edge" d="m0,-200 a40,40 0 0,0 -62,10"/> </g> <g class="segment" transform="rotate(54)"> <path class="segment-fill" d="m0,0 v-200 a40,40 0 0,0 -62,10 z"/> <path class="segment-edge" d="m0,-200 a40,40 0 0,0 -62,10"/> </g> <g class="segment" transform="rotate(72)"> <path class="segment-fill" d="m0,0 v-200 a40,40 0 0,0 -62,10 z"/> <path class="segment-edge" d="m0,-200 a40,40 0 0,0 -62,10"/> </g> </g> <g class="quadrant"> <g class="segment" transform="rotate(90)"> <path class="segment-fill" d="m0,0 v-200 a40,40 0 0,0 -62,10...
... z"/> <path class="segment-edge" d="m0,-200 a40,40 0 0,0 -62,10"/> </g> <g class="segment" transform="rotate(108)"> <path class="segment-fill" d="m0,0 v-200 a40,40 0 0,0 -62,10 z"/> <path class="segment-edge" d="m0,-200 a40,40 0 0,0 -62,10"/> </g> <g class="segment" transform="rotate(126)"> <path class="segment-fill" d="m0,0 v-200 a40,40 0 0,0 -62,10 z"/> <path class="segment-edge" d="m0,-200 a40,40 0 0,0 -62,10"/> </g> <g class="segment" transform="rotate(144)"> <path class="segment-fill" d="m0,0 v-200 a40,40 0 0,0 -62,10 z"/> <path class="segment-edge" d="m0,-200 a40,40 0 0,0 -62,10"/> </g> <g class="segment" transform="rotate(162)"> <path class="segm...
...And 11 more matches

Chapter 4: Using XPCOM—Implementing advanced processes - Archive of obsolete content
listing 1: calling xpcom functions using xpconnect <?xml version="1.0" encoding="utf-8"?> <page xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <script type="application/javascript"><![cdata[ var ioservice = components.classes['@mozilla.org/network/io-service;1'] .getservice(components.interfaces.nsiioservice); alert(ioservice); ]]></script> </page> calling xpconnect using local files try saving the contents of listing 1 as the file test.xul, somewhere on your desktop, and drag and drop it into firefox to open it.
... listing 4: get active browser window netscape.security.privilegemanager .enableprivilege('universalxpconnect'); var windowmediator = components .classes['@mozilla.org/appshell/window-mediator;1'] .getservice(components.interfaces.nsiwindowmediator); var browser = windowmediator.getmostrecentwindow('navigator:browser'); alert(browser.gbrowser.mtabs.length); get overview of all windows with a certain type use the nsiwindowmediator.getenumerator() method to get an overview of all windows that have a certain type.
... listing 6: creating an xpcom object representing a file var file = components.classes['@mozilla.org/file/local;1'] .createinstance(components.interfaces.nsilocalfile); file.initwithpath('c:\\temp\\temp.txt'); creating and deleting files listing 7 shows how to delete a file if it exists, and create a new file with the same name.
...And 10 more matches

Source code directories overview - Archive of obsolete content
qt contains source code for the qt toolkit, a c class library which runs on x-windows on unix, windows 95, windows 98 and window nt 4.0.
...this code originated in the mozilla classic code base.
...it is used for the auto-completion feature on the url edit box (stored in netscape.hst in mozilla classic) and for the cached pages index (stored in fat.db in mozilla classic).
...And 10 more matches

JavaScript Client API - Archive of obsolete content
but, you want to use a derived class, cryptowrapper, which seamlessly encrypts and decrypts records on the client.
... } }; writing a tracker class your tracker class must inherit from tracker, which is defined in services/sync/modules/trackers.js.
... the score the '''score''' is stored in this.score, a variable defined by the base tracker class.
...And 10 more matches

Attribute selectors - Learn web development
[attr~=value] p[class~="special"] matches elements with an attr attribute whose value is exactly value, or contains value in its (space separated) list of values.
... by using li[class] we can match any selector with a class attribute.
... li[class="a"] matches a selector with a class of a, but not a selector with a class of a with another space-separated class as part of the value.
...And 10 more matches

Practical positioning examples - Learn web development
prerequisites: html basics (study introduction to html), and an idea of how css works (study introduction to css.) objective: to get an idea of the practicalities of positioning a tabbed info-box the first example we'll look at is a classic tabbed info box — a very common feature used when you want to pack a lot of information into a small area.
...let's look at the html contained within the body: <section class="info-box"> <ul> <li><a href="#" class="active">tab 1</a></li> <li><a href="#">tab 2</a></li> <li><a href="#">tab 3</a></li> </ul> <div class="panels"> <article class="active-panel"> <h2>the first tab</h2> <p>lorem ipsum dolor sit amet, consectetur adipiscing elit.
...and now an ordered list: how exciting!</p> <ol> <li>dui neque eleifend lorem, a auctor libero turpis at sem.</li> <li>aliquam ut porttitor urna.</li> <li>nulla facilisi</li> </ol> </article> </div> </section> so here we've got a <section> element with a class of info-box, which contains a <ul> and a <div>.
...And 10 more matches

Beginning our React todo list - Learn web development
the jsx copy the following snippet to your clipboard, then paste it into app.js so that it replaces the existing app() function: function app(props) { return ( <div classname="todoapp stack-large"> <h1>todomatic</h1> <form> <h2 classname="label-wrapper"> <label htmlfor="new-todo-input" classname="label__lg"> what needs to be done?
... </label> </h2> <input type="text" id="new-todo-input" classname="input input__lg" name="text" autocomplete="off" /> <button type="submit" classname="btn btn__primary btn__lg"> add </button> </form> <div classname="filters btn-group stack-exception"> <button type="button" classname="btn toggle-btn" aria-pressed="true"> <span classname="visually-hidden">show </span> <span>all</span> <span classname="visually-hidden"> tasks</span> </button> <button type="button" classname="btn toggle-btn" aria-pressed="false"> <span classname="visually-hidden">show </span> <span>active</span> <span classname="v...
...isually-hidden"> tasks</span> </button> <button type="button" classname="btn toggle-btn" aria-pressed="false"> <span classname="visually-hidden">show </span> <span>completed</span> <span classname="visually-hidden"> tasks</span> </button> </div> <h2 id="list-heading"> 3 tasks remaining </h2> <ul role="list" classname="todo-list stack-large stack-exception" aria-labelledby="list-heading" > <li classname="todo stack-small"> <div classname="c-cb"> <input id="todo-0" type="checkbox" defaultchecked={true} /> <label classname="todo-label" htmlfor="todo-0"> eat </label> </div> <div classname="btn-grou...
...And 10 more matches

Starting our Svelte Todo list app - Learn web development
copy and paste the following into our todos.svelte component file, replacing the existing content: <!-- todos.svelte --> <div class="todoapp stack-large"> <!-- newtodo --> <form> <h2 class="label-wrapper"> <label for="todo-0" class="label__lg"> what needs to be done?
... </label> </h2> <input type="text" id="todo-0" autocomplete="off" class="input input__lg" /> <button type="submit" disabled="" class="btn btn__primary btn__lg"> add </button> </form> <!-- filter --> <div class="filters btn-group stack-exception"> <button class="btn toggle-btn" aria-pressed="true"> <span class="visually-hidden">show</span> <span>all</span> <span class="visually-hidden">tasks</span> </button> <button class="btn toggle-btn" aria-pressed="false"> <span class="visually-hidden">show</span> <span>active</span> <span class="visually-hidden">tasks</span> </button> <button class="btn toggle-btn" aria-pressed="false"> <span class="visually-hidden">show</span> <span>completed</span>...
... <span class="visually-hidden">tasks</span> </button> </div> <!-- todosstatus --> <h2 id="list-heading">2 out of 3 items completed</h2> <!-- todos --> <ul role="list" class="todo-list stack-large" aria-labelledby="list-heading"> <!-- todo-1 (editing mode) --> <li class="todo"> <div class="stack-small"> <form class="stack-small"> <div class="form-group"> <label for="todo-1" class="todo-label"> new name for 'create a svelte starter app' </label> <input type="text" id="todo-1" autocomplete="off" class="todo-text" /> </div> <div class="btn-group"> <button class="btn todo-cancel" type="button"> cancel <span class="visually-hidden">renami...
...And 10 more matches

Advanced Svelte: Reactivity, lifecycle, accessibility - Learn web development
put the following content into your moreactions.svelte file: <script> import { createeventdispatcher } from 'svelte' const dispatch = createeventdispatcher() let completed = true const checkall = () => { dispatch('checkall', completed) completed = !completed } const removecompleted = () => dispatch('removecompleted') </script> <div class="btn-group"> <button type="button" class="btn btn__primary" on:click={checkall}>{completed ?
... 'check' : 'uncheck'} all</button> <button type="button" class="btn btn__primary" on:click={removecompleted}>remove completed</button> </div> we've also included a completed variable to toggle between checking and unchecking all tasks.
...mponent like this: <script> import { createeventdispatcher } from 'svelte' const dispatch = createeventdispatcher() export let todos let completed = true const checkall = () => { dispatch('checkall', completed) completed = !completed } const removecompleted = () => dispatch('removecompleted') $: completedtodos = todos.filter(t => t.completed).length </script> <div class="btn-group"> <button type="button" class="btn btn__primary" disabled={todos.length === 0} on:click={checkall}>{completed ?
...And 10 more matches

Dynamic behavior in Svelte: working with variables and props - Learn web development
replace your existing <ul> block with the following: <!-- todos --> <ul role="list" class="todo-list stack-large" aria-labelledby="list-heading"> {#each todos as todo (todo.id)} <li class="todo"> <div class="stack-small"> <div class="c-cb"> <input type="checkbox" id="todo-{todo.id}" checked={todo.completed}/> <label for="todo-{todo.id}" class="todo-label"> {todo.name} </label> </div> <div class="btn-group"> ...
... <button type="button" class="btn"> edit <span class="visually-hidden">{todo.name}</span> </button> <button type="button" class="btn btn__danger"> delete <span class="visually-hidden">{todo.name}</span> </button> </div> </div> </li> {:else} <li>nothing to do here!</li> {/each} </ul> notice how we are using curly braces to embed javascript expressions in html attributes, like we did with the checked and id attributes of the checkbox.
...update it with a click event, like so: <button type="button" class="btn btn__danger" on:click={() => removetodo(todo)} > delete <span class="visually-hidden">{todo.name}</span> </button> a very common mistake with handlers in svelte is to pass the result of executing a function as a handler, instead of passing the function.
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inIDOMUtils
inherits from: nsisupports last changed in gecko 22.0 (firefox 22.0 / thunderbird 22.0 / seamonkey 2.19) implemented by: @mozilla.org/inspector/dom-utils;1 as a service: var inidomutils = components.classes["@mozilla.org/inspector/dom-utils;1"] .getservice(components.interfaces.inidomutils); method overview void addpseudoclasslock(in nsidomelement aelement, in domstring apseudoclass); void clearpseudoclasslocks(in nsidomelement aelement); [implicit_jscontext] jsval colornametorgb(in domstring acolorname); nsiarray getbindingurls(in nsidomelement aelement); nsidomnodelist getchildrenfornode(in nsidomnode anode, in boolean ashowinganonymouscontent); ...
...lumn(in nsidomcssstylerule arule); unsigned long getselectorcount(in nsidomcssstylerule arule); astring getselectortext(in nsidomcssstylerule arule, in unsigned long aselectorindex); unsigned long long getspecificity(in nsidomcssstylerule arule, in unsigned long aselectorindex); nsidomfontfacelist getusedfontfaces(in nsidomrange arange); bool haspseudoclasslock(in nsidomelement aelement, in domstring apseudoclass); boolean isignorablewhitespace(in nsidomcharacterdata adatanode); bool isinheritedproperty(in astring apropertyname); void parsestylesheet(in nsidomcssstylesheet asheet, in domstring ainput); void removepseudoclasslock(in nsidomelement aelement, in domstring apseudoclass); astring rgbtocolornam...
... addpseudoclasslock() makes the element take on style properties that would apply if the element had the given pseudo-classes.
...And 10 more matches

nsIComponentManager
xpcom/components/nsicomponentmanager.idlscriptable this interface provides methods to access factory objects and instantiate instances of classes.
... 66 introduced gecko 0.7 inherits from: nsisupports last changed in gecko 8.0 (firefox 8.0 / thunderbird 8.0 / seamonkey 2.5) method overview void addbootstrappedmanifestlocation(in nsilocalfile alocation); void createinstance(in nscidref aclass, in nsisupports adelegate, in nsiidref aiid, [iid_is(aiid),retval] out nsqiresult result); void createinstancebycontractid(in string acontractid, in nsisupports adelegate, in nsiidref aiid, [iid_is(aiid),retval] out nsqiresult result); void getclassobject(in nscidref aclass, in nsiidref aiid, [iid_is(aiid),retval] out nsqiresult result); void getclassobjectbycontractid(in string acontractid, in nsiidref aiid, [iid_is(aiid),retval] out nsqiresult result); void removebootstrapp...
... createinstance() creates an instance of the class specified by classid.
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Realizing common layouts using CSS Grid Layout - CSS: Cascading Style Sheets
* {box-sizing: border-box;} .wrapper { max-width: 1024px; margin: 0 auto; font: 1.2em helvetica, arial, sans-serif; } .wrapper > * { border: 2px solid #f08c00; background-color: #ffec99; border-radius: 5px; padding: 10px; } nav ul { list-style: none; margin: 0; padding: 0; } <div class="wrapper"> <header class="main-head">the header</header> <nav class="main-nav"> <ul> <li><a href="">nav 1</a></li> <li><a href="">nav 2</a></li> <li><a href="">nav 3</a></li> </ul> </nav> <article class="content"> <h1>main article area</h1> <p>in this layout, we display ...
...we go to a two column layout, and then to a three column layout by redefining the grid, and the placement of items on the grid.</p> </article> <aside class="side">sidebar</aside> <div class="ad">advertising</div> <footer class="main-footer">the footer</footer> </div> as we are using grid-template-areas to create the layout.
... <div class="wrapper"> <div class="item1">start column line 1, span 3 column tracks.</div> <div class="item2">start column line 6, span 4 column tracks.
...And 10 more matches

Specificity - CSS: Cascading Style Sheets
class selectors (e.g., .example), attributes selectors (e.g., [type="radio"]) and pseudo-classes (e.g., :hover).
... universal selector (*), combinators (+, >, ~, ' ', ||) and negation pseudo-class (:not()) have no effect on specificity.
... #myid#myid span { color: yellow; } .myclass.myclass span { color: orange; } how !important can be used: a) overriding inline styles your global css file that sets visual aspects of your site globally may be overwritten by inline styles defined directly on individual elements.
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Rich-Text Editing in Mozilla - Developer guides
devedge provides a javascript helper class, xbdesignmode, which is a wrapper for the designmode feature which hides the differences between ie and mozilla.
...tion value="h3">title 3 &lt;h3&gt;</option> <option value="h4">title 4 &lt;h4&gt;</option> <option value="h5">title 5 &lt;h5&gt;</option> <option value="h6">subtitle &lt;h6&gt;</option> <option value="p">paragraph &lt;p&gt;</option> <option value="pre">preformatted &lt;pre&gt;</option> </select> <select onchange="formatdoc('fontname',this[this.selectedindex].value);this.selectedindex=0;"> <option class="heading" selected>- font -</option> <option>arial</option> <option>arial black</option> <option>courier new</option> <option>times new roman</option> </select> <select onchange="formatdoc('fontsize',this[this.selectedindex].value);this.selectedindex=0;"> <option class="heading" selected>- size -</option> <option value="1">very small</option> <option value="2">a bit small</option> <option value="...
...3">normal</option> <option value="4">medium-large</option> <option value="5">big</option> <option value="6">very big</option> <option value="7">maximum</option> </select> <select onchange="formatdoc('forecolor',this[this.selectedindex].value);this.selectedindex=0;"> <option class="heading" selected>- color -</option> <option value="red">red</option> <option value="blue">blue</option> <option value="green">green</option> <option value="black">black</option> </select> <select onchange="formatdoc('backcolor',this[this.selectedindex].value);this.selectedindex=0;"> <option class="heading" selected>- background -</option> <option value="red">red</option> <option value="green">green</option> <option value="black">black</option> </select> </div> <div id="toolbar2"> <img class="intlink" title="clean" on...
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JavaScript Object Management - Archive of obsolete content
var exported_symbols = [ "〈modulenamespace〉" ]; const { classes: cc, interfaces: ci } = components; /** * 〈modulenamespace〉 namespace.
...we frequently need to use xpcom components in our code, so instead of doing this: this.obsservice = components.classes["@mozilla.org/observer-service;1"].getservice(components.interfaces.nsiobserverservice); it's better to do this: this.obsservice = cc["@mozilla.org/observer-service;1"].getservice(ci.nsiobserverservice); these 2 constants don't need to be defined in the overlay because they are already defined globally in the browser.js file in firefox.
...but it is sometimes necessary to define classes and be able to create multiple instances.
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Getting Started - Archive of obsolete content
setup download the latest version of mozilla, install it (install the dom inspector as well), and select the classic skin.
...mozilla currently comes with two skins, classic and modern.
... looking in the directory you'll also notice that there are classic.jar and modern.jar files.
...And 9 more matches

JavaObject - Archive of obsolete content
in addition, you can explicitly construct a javaobject using the object's java constructor with the packages keyword: new packages.javaclass(parameterlist) javaclassis the fully-specified name of the object's java class.
... parameters parameterlist an optional list of parameters, specified by the constructor of the java class.
... description the javaobject object is an instance of a java class that is created in or passed to javascript.
...And 9 more matches

Issues Arising From Arbitrary-Element hover - Archive of obsolete content
many authors make use of the css2 pseudo-class :hover to style their links.
... hover and non-link elements section 5.11.3 of css2 defines the three dynamic pseudo-classes (:hover, :active, and :focus) and then goes on to say: css doesn't define which elements may be in the above states, or how the states are entered and left.
... bare pseudo-classes the second piece of the problem comes when we consider the effects of a "bare" pseudo-class in a selector.
...And 9 more matches

Componentizing our React app - Learn web development
go back to src/app.js, copy the first <li> from inside the unordered list, and paste it into todo.js so that it reads like this: export default function todo() { return ( <li classname="todo stack-small"> <div classname="c-cb"> <input id="todo-0" type="checkbox" defaultchecked={true} /> <label classname="todo-label" htmlfor="todo-0"> eat </label> </div> <div classname="btn-group"> <button type="button" classname="btn"> edit <span classname="visually-hidden">eat</span> </button> <button typ...
...e="button" classname="btn btn__danger"> delete <span classname="visually-hidden">eat</span> </button> </div> </li> ); } note: components must always return something.
...your <ul> should read like this: <ul role="list" classname="todo-list stack-large stack-exception" aria-labelledby="list-heading" > <todo /> <todo /> <todo /> </ul> when you look back at your browser, you'll notice something unfortunate: your list now repeats the first task three times!
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Getting started with React - Learn web development
this file contains our first component, app, and a few other lines of code: import react from 'react'; import logo from './logo.svg'; import './app.css'; function app() { return ( <div classname="app"> <header classname="app-header"> <img src={logo} classname="app-logo" alt="logo" /> <p> edit <code>src/app.js</code> and save to reload.
... </p> <a classname="app-link" href="https://reactjs.org" target="_blank" rel="noopener noreferrer" > learn react </a> </header> </div> ); } export default app; the app.js file consists of three main parts: some import statements at the top, the app component in the middle, and an export statement at the bottom.
... function app() { return ( <div classname="app"> <header classname="app-header"> <img src={logo} classname="app-logo" alt="logo" /> <p> edit <code>src/app.js</code> and save to reload.
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Mozilla-JSS JCA Provider notes
contents signed jar file installing the provider specifying the cryptotoken supported classes what's not supported signed jar file jss implements several jce (java cryptography extension) algorithms.
...at runtime, the jre automatically verifies this signature whenever a jss class is loaded that implements a jce algorithm.
...by default, the jca provider will be installed in the list of providers maintained by the java.security.security class.
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JS_NewObject
syntax // added in spidermonkey 45 jsobject * js_newobject(jscontext *cx, const jsclass *clasp); bool js_newobjectwithgivenproto(jscontext *cx, const jsclass *clasp, js::handle<jsobject*> proto); // obsolete since spidermonkey 38 jsobject * js_newobject(jscontext *cx, const jsclass *clasp, js::handle<jsobject*> proto, js::handle<jsobject*> parent); jsobject * js_newobjectwithgivenproto(jscontext *cx, const jsclass *clasp, js::handle<jsobject*> proto, js::handle<jsobject*> parent); // added in spidermonkey 1.8 name type description cx jscontext * the context in which to create the new object.
... clasp const jsclass * pointer to the class to use for the new object.
... the jsclass may be used to override low-level object behavior, including such details as the physical memory layout of the object and how property lookups are done.
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XPCOM Stream Guide
primitive input streams type native class contract id interface how to bind to a data source generic nsstorageinputstream n/a nsiinputstream, nsiseekablestream storagestream.newinputstream(); string (8-bit characters) nsstringstream @mozilla.org/io/string-input-stream;1 nsistringinputstream stream.setdata(data, length); file nsfileinputstream @mozilla.org/netw...
... primitive output streams type native class contract id interface how to bind to a data target generic nsstoragestream @mozilla.org/storagestream;1 nsistoragestream stream.getoutputstream(); // returns nsioutputstream file nsfileoutputstream @mozilla.org/network/file-output-stream;1 nsifileoutputstream stream.init(file, ioflags, perm, behaviorflags); file nssafefileoutputstream @mozilla.org/network/safe-file-output-stream;1 nsisafefileoutputstrea...
...if you have an input stream called nativestream, you can use code like this: var stream = components.classes["@mozilla.org/scriptableinputstream;1"] .createinstance(components.interfaces.nsiscriptableinputstream); stream.init(nativestream); the stream provides .read(count), .available(), and .close() methods.
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SubtleCrypto.verify() - Web APIs
* if it checks out, set the "valid" class on the signature.
... * otherwise set the "invalid" class.
... */ async function verifymessage(publickey) { const signaturevalue = document.queryselector(".rsassa-pkcs1 .signature-value"); signaturevalue.classlist.remove("valid", "invalid"); let encoded = getmessageencoding(); let result = await window.crypto.subtle.verify( "rsassa-pkcs1-v1_5", publickey, signature, encoded ); signaturevalue.classlist.add(result ?
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:where() - CSS: Cascading Style Sheets
the :where() css pseudo-class function takes a selector list as its argument, and selects any element that can be selected by one of the selectors in that list.
... take the following html: <article> <h2>:is()-styled links</h2> <section class="is-styling"> <p>here is my main content.
... </section> <aside class="is-styling"> <p>here is my aside content.
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Relationship of grid layout to other layout methods - CSS: Cascading Style Sheets
* {box-sizing: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } <div class="wrapper"> <div>one</div> <div>two</div> <div>three</div> <div>four</div> <div>five</div> </div> .wrapper { width: 500px; display: flex; flex-wrap: wrap; } .wrapper > div { flex: 1 1 150px; } in the image, you can see that two items have wrapped onto a new line.
... * {box-sizing: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } <div class="wrapper"> <div>one</div> <div>two</div> <div>three</div> <div>four</div> <div>five</div> </div> .wrapper { display: grid; grid-template-columns: repeat(3, 1fr); } a simple question to ask yourself when deciding between grid or flexbox is: do i only need to control the layout by row or column – use a flexbox do i need to control the layout by row and column – use a gr...
... * {box-sizing: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } <div class="wrapper"> <div class="box1">one</div> <div class="box2">two</div> <div class="box3">three</div> </div> .wrapper { display: flex; align-items: flex-end; min-height: 200px; } .box1 { align-self: stretch; } .box2 { align-self: flex-start; } alignment in css grids this second example uses a grid to create the same layout.
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Using CSS transforms - CSS: Cascading Style Sheets
<table> <tbody> <tr> <th><code>perspective: 250px;</code> </th> <th><code>perspective: 350px;</code> </th> </tr> <tr> <td> <div class="container"> <div class="cube pers250"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div class="face bottom">6</div> </div> </div> </td> <td> <div class="container"> ...
... <div class="cube pers350"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div class="face bottom">6</div> </div> </div> </td> </tr> <tr> <th><code>perspective: 500px;</code> </th> <th><code>perspective: 650px;</code> </th> </tr> <tr> <td> <div class="container"> <div class="cube pers500"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div cla...
...ss="face bottom">6</div> </div> </div> </td> <td> <div class="container"> <div class="cube pers650"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div class="face bottom">6</div> </div> </div> </td> </tr> </tbody> </table> css the css establishes classes that can be used to set the perspective to different distances.
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clip-path - CSS: Cascading Style Sheets
| [ [ left | right ] <length-percentage> ] && [ [ top | bottom ] <length-percentage> ] ]<fill-rule> = nonzero | evenodd<box> = border-box | padding-box | content-box examples comparison of html and svg <svg class="defs"> <defs> <clippath id="mypath" clippathunits="objectboundingbox"> <path d="m0.5,1 c0.5,1,0,0.7,0,0.3 a0.25,0.25,1,1,1,0.5,0.3 a0.25,0.25,1,1,1,1,0.3 c1,0.7,0.5,1,0.5,1 z" /> </clippath> </defs> </svg> <div class="grid"> <div class="col"> <div class="note">clip-path: none</div> <div class="row"> <div class="cell"> <span>html</span> <div class="conta...
...iner"> <p class="none"> i love<br><em>clipping</em> </p> </div> </div> <div class="cell"> <span>svg</span> <div class="container viewbox"> <svg viewbox="0 0 192 192"> <g class="none"> <rect x="24" y="24" width="144" height="144" /> <text x="96" y="91">i love</text> <text x="96" y="109" class="em">clipping</text> </g> </svg> </div> </div> </div> <div class="note">clip-path: url(#mypath)<br><br> assuming the following clippath definition: <pre> &lt;svg&gt; &lt;clippath id="mypath" clippathunits="objectboundingbox"&gt; &lt;path d="m0.5,1 c 0.5,1,0,0.7,0,0.3 a 0.25,0.25,1,1,1,0.5,0.3 a 0.25,0.25,1...
...,1,1,1,0.3 c 1,0.7,0.5,1,0.5,1 z" /&gt; &lt;/clippath&gt; &lt;/svg&gt;</pre> </div> <div class="row"> <div class="cell"> <span>html</span> <div class="container"> <p class="svg"> i love<br><em>clipping</em> </p> </div> </div> <div class="cell"> <span>svg</span> <div class="container viewbox"> <svg viewbox="0 0 192 192"> <g class="svg"> <rect x="24" y="24" width="144" height="144" /> <text x="96" y="91">i love</text> <text x="96" y="109" class="em">clipping</text> </g> </svg> </div> </div> </div> <div class="note">clip-path: path('m15,45 a30,30,0,0,1,75,45 a30,30,0,0,1,135,45 q135,90,75,130 q15,90,15...
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constructor - JavaScript
the constructor method is a special method of a class for creating and initializing an object of that class.
... class person { constructor(name) { this.name = name; } introduce() { console.log(`hello, my name is ${this.name}`); } } const otto = new person('otto'); otto.introduce(); if you don't provide your own constructor, then a default constructor will be supplied for you.
... if your class is a base class, the default constructor is empty: constructor() {} if your class is a derived class, the default constructor calls the parent constructor, passing along any arguments that were provided: constructor(...args) { super(...args); } that enables code like this to work: class validationerror extends error { printcustomermessage() { return `validation failed :-( (details: ${this.message})`; } } try { throw new validationerror("not a valid phone number"); } catch (error) { if (error instanceof validationerror) { console.log(error.name); // this is error instead of validationerror!
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Preferences - Archive of obsolete content
here are two examples: // get the root branch var prefs = components.classes["@mozilla.org/preferences-service;1"] .getservice(components.interfaces.nsiprefbranch); // get the "extensions.myext." branch var prefs = components.classes["@mozilla.org/preferences-service;1"] .getservice(components.interfaces.nsiprefservice); prefs = prefs.getbranch("extensions.myext."); simple types there are three types of preferences: string, i...
...using them is as easy as: // get the "accessibility." branch var prefs = components.classes["@mozilla.org/preferences-service;1"] .getservice(components.interfaces.nsiprefservice).getbranch("accessibility."); // prefs is an nsiprefbranch.
...example: // prefs is an nsiprefbranch // example 1: getting unicode value var value = prefs.getcomplexvalue("preference.with.non.ascii.value", components.interfaces.nsisupportsstring).data; // example 2: setting unicode value var str = components.classes["@mozilla.org/supports-string;1"] .createinstance(components.interfaces.nsisupportsstring); str.data = "some non-ascii text"; prefs.setcomplexvalue("preference.with.non.ascii.value", components.interfaces.nsisupportsstring, str); nsipreflocalizedstring another complex type supported by mozilla is nsipreflocalizedstring.
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Java in Firefox Extensions - Archive of obsolete content
these 2 objects let you make use of the standard jdk classes, e.g., var ajavalist = new java.util.linkedlist(); if you want to load your own jars, then you can create your own java class loader.
...if you call java from xul, then each firefox window will have its own class loader and hence its own "singleton".
...java_demo/ ] for privileges, the basic procedure is: download and include http://simile.mit.edu/repository/jav...nsionutils.jar within your extension (you can also build your own from the source files at http://simile.mit.edu/repository/jav...xtensionutils/ ) build and add references leading to this jar and all other jars in your extension within an array of java.net.url's, pass to java.net.urlclassloader to get a class loader, and finally pass the classloader and array to a function which gives the necessary privileges: // this function will be called to give the necessary privileges to your jar files // however, the policy never comes into play, because // (1) adding permissions doesn't add to the policy itself, and // (2) addurl alone does not set the grant codebase function polic...
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XPCOM Interfaces - Archive of obsolete content
you can get a component using javascript code like that below: var afile = components.classes["@mozilla.org/file/local;1"].createinstance(); the file component is retrieved and stored in the afile variable.
...here, we get a component class from the classes property.
... the classes property is an array of all of the available components.
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label - Archive of obsolete content
attributes accesskey, control, crop, disabled, href, value properties accesskey, accessibletype, control, crop, disabled, value style classes header, indent, monospace, plain, small-margin, text-link examples <label value="email address" control="email"/> <textbox id="email"/> attributes accesskey type: character this should be set to a character that is used as a shortcut key.
...requires the class attribute to include text-link.
... methods inherited methods addeventlistener(), appendchild(), blur, click, clonenode(), comparedocumentposition, dispatchevent(), docommand, focus, getattribute(), getattributenode(), getattributenodens(), getattributens(), getboundingclientrect(), getclientrects(), getelementsbyattribute, getelementsbyattributens, getelementsbyclassname(), getelementsbytagname(), getelementsbytagnamens(), getfeature, getuserdata, hasattribute(), hasattributens(), hasattributes(), haschildnodes(), insertbefore(), isdefaultnamespace(), isequalnode, issamenode, issupported(), lookupnamespaceuri, lookupprefix, normalize(), queryselector(), queryselectorall(), removeattribute(), removeattributenode(), removeattributens(), removechild(), removeeve...
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Organizing your CSS - Learn web development
consistency can be applied in all sorts of ways, such as using the same naming conventions for classes, choosing one method of describing color, or maintaining consistent formatting (for example will you use tabs or spaces to indent your code?
...} after this section we could define a few utility classes, for example a class that removes the default list style for lists we're going to display as flex items or in some other way.
...for example, you might have something like the below selector, which applies the rule to a <p> with a class of box inside an <article> with a class of main.
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Getting started with CSS - Learn web development
adding a class so far we have styled elements based on their html element names.
...the most common way to do this is to add a class to your html element and target that class.
... in your html document, add a class attribute to the second list item.
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Ember app structure and componentization - Learn web development
a deeper understanding of modern javascript features (such as classes, modules, etc), will be extremely beneficial, as ember makes heavy use of them.
...to start with, delete the contents of application.hbs and replace them with the following: <section class="todoapp"> <h1>todos</h1> <input class="new-todo" aria-label="what needs to be done?" placeholder="what needs to be done?" autofocus > </section> note: aria-label provides a label for assistive technology to make use of — for example, for a screenreader to read out.
...update the application.hbs file again so its content looks like this: <section class="todoapp"> <h1>todos</h1> <input class="new-todo" aria-label="what needs to be done?" placeholder="what needs to be done?" autofocus > <section class="main"> <input id="mark-all-complete" class="toggle-all" type="checkbox"> <label for="mark-all-complete">mark all as complete</label> <ul class="todo-list"> <li> <div class="view"> <input...
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TypeScript support in Svelte - Learn web development
typescript: optional static typing for javascript typescript is a superset of javascript that provides features such as optional static typing, classes, interfaces, and generics.
... first class typescript support has been svelte's most requested feature for quite some time.
... boiler plate code: working with types, classes, interfaces, and generics can lead to over-engineered code bases.
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Memory reporting
they provide more information to dmd, which is a tool that helps keep about:memory's "heap-unclassified" number low.
... a simple example imagine a simple string class with the following data fields: class mystring { private: char *mbuffer; // heap-allocated size_t mlen; // ...
...} here are what the measurement functions (yes, functions) should look like for this class.
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Index
nss has an ssl/tls module that implements the secure sockets layer/transport layer security network protocols, an s/mime module that implements cms messaging used by secure email and some instant messaging implementations, a dbm library that implements the classic database storage, and finally a core nss library for the big set of “everything else”.
...there is a classic engine that is very stable and works fine in all simple scenarios, for example if all (b) candidate issuer certificates have the same subject and issuer names and differ by validity period; however, it works only in a limited amount of more advanced scenarios.
... modutil -dbdir sql:/home/mt"jar-install-filey/sharednssdb -jar install.jar -installdir sql:/home/my/sharednssdb this installation jar file was signed by: ---------------------------------------------- **subject name** c=us, st=california, l=mountain view, cn=cryptorific inc., ou=digital id class 3 - netscape object signing, ou="www.verisign.com/repository/cps incorp.
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JSS Provider Notes
contents signed jar file installing the provider specifying the cryptotoken supported classes what's not supported signed jar file jss 3.2 implements several jce (java cryptography extension) algorithms.
...at runtime, the jre automatically verifies this signature whenever a jss class is loaded that implements a jce algorithm.
...by default, the jca provider will be installed in the list of providers maintained by the java.security.security class.
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Rhino overview
rhino contains all the features of javascript 1.7 allows direct scripting of java a javascript shell for executing javascript scripts a javascript compiler to transform javascript source files into java class files a javascript debugger for scripts executed with rhino language the javascript language itself is standardized by standard ecma-262 ecmascript: a general purpose, cross-platform programming language.
... in addition, rhino has implemented javaadapters, which allows javascript to implement any java interface or extend any java class with a javascript object.
...the class context should be obtained from the security manager (see java.lang.securitymanager.getclasscontext()).
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Exact Stack Rooting
since c++ does not reliably distinguish between storage classes, we have to put this burden on the user.
... class fooclass = { "fooprototype", /* name */ jsclass_has_private | jsclass_has_reserved_slots(1), /* flags */ js_propertystub, /* addproperty */ js_propertystub, /* delproperty */ ...
...}; rootedobject obj(cx, newobject(cx, &fooclass, nullptr(), nullptr(), &obj)); rootedvalue v(cx, object_to_value(othergcthing)); jsobject::setreservedslot(obj, 0, v); storing a gcpointer on the cheap todo: tracing and heapptr storing a gcpointer on the cstack gcpointers stored on the cstack are special.
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Accessing the Windows Registry Using XPCOM
a simple example here's a simple example showing how to read your windows productid: var wrk = components.classes["@mozilla.org/windows-registry-key;1"] .createinstance(components.interfaces.nsiwindowsregkey); wrk.open(wrk.root_key_local_machine, "software\\microsoft\\windows\\currentversion", wrk.access_read); var id = wrk.readstringvalue("productid"); wrk.close(); this example, while simple, shows several important things about using the interface.
...they are: root_key_classes_root — corresponds to hkey_classes_root root_key_current_user — corresponds to hkey_current_user root_key_local_machine — corresponds to hkey_local_machine the second parameter for open() and create() is the path to the key.
...here's the simple example again, but using openchild(): var wrk = components.classes["@mozilla.org/windows-registry-key;1"] .createinstance(components.interfaces.nsiwindowsregkey); wrk.open(wrk.root_key_local_machine, "software\\microsoft", wrk.access_read); var subkey = wrk.openchild("windows\\currentversion", wrk.access_read); var id = subkey.readstringvalue("productid"); subkey.close(); wrk.close(); once you've opened a registry key, y...
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Background audio processing using AudioWorklet - Web APIs
create module that defines a audio worklet processor class, based on audioworkletprocessor which takes audio from one or more incoming sources, performs its operation on the data, and outputs the resulting audio data.
... glitch project page see the code try it live creating an audio worklet processor fundamentally, an audio worklet processor (which we'll refer to usually as either an "audio processor" or simply as a "processor" because otherwise this article will be about twice as long) is implemented using a javascript module that defines and installs the custom audio processor class.
... structure of an audio worklet processor an audio worklet processor is a javascript module which consists of the following: a javascript class which defines the audio processor.
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:not() - CSS: Cascading Style Sheets
the :not() css pseudo-class represents elements that do not match a list of selectors.
... since it prevents specific items from being selected, it is known as the negation pseudo-class.
... /* selects any element that is not a paragraph */ :not(p) { color: blue; } the :not() pseudo-class has a number of quirks, tricks, and unexpected results that you should be aware of before using it.
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Basic Concepts of grid layout - CSS: Cascading Style Sheets
in this example, i have a containing div with a class of wrapper and, inside are five child elements.
... <div class="wrapper"> <div>one</div> <div>two</div> <div>three</div> <div>four</div> <div>five</div> </div> i make the .wrapper a grid container.
... <div class="wrapper"> <div>one</div> <div>two</div> <div>three</div> <div>four</div> <div>five</div> </div> .wrapper { display: grid; grid-template-columns: 200px 200px 200px; } * {box-sizing: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #f...
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Making content editable - Developer guides
tion value="h3">title 3 &lt;h3&gt;</option> <option value="h4">title 4 &lt;h4&gt;</option> <option value="h5">title 5 &lt;h5&gt;</option> <option value="h6">subtitle &lt;h6&gt;</option> <option value="p">paragraph &lt;p&gt;</option> <option value="pre">preformatted &lt;pre&gt;</option> </select> <select onchange="formatdoc('fontname',this[this.selectedindex].value);this.selectedindex=0;"> <option class="heading" selected>- font -</option> <option>arial</option> <option>arial black</option> <option>courier new</option> <option>times new roman</option> </select> <select onchange="formatdoc('fontsize',this[this.selectedindex].value);this.selectedindex=0;"> <option class="heading" selected>- size -</option> <option value="1">very small</option> <option value="2">a bit small</option> <option value="...
...3">normal</option> <option value="4">medium-large</option> <option value="5">big</option> <option value="6">very big</option> <option value="7">maximum</option> </select> <select onchange="formatdoc('forecolor',this[this.selectedindex].value);this.selectedindex=0;"> <option class="heading" selected>- color -</option> <option value="red">red</option> <option value="blue">blue</option> <option value="green">green</option> <option value="black">black</option> </select> <select onchange="formatdoc('backcolor',this[this.selectedindex].value);this.selectedindex=0;"> <option class="heading" selected>- background -</option> <option value="red">red</option> <option value="green">green</option> <option value="black">black</option> </select> </div> <div id="toolbar2"> <img class="intlink" title="clean" on...
...c.innerhtml=sdeftxt};" src="data:image/gif;base64,r0lgodlhfgawaiqbad04ktrlyzfrjlldzl9vj1dusy14wyodhpwibbsvfy6o7ioxw5qbms+wubcztca0ccs4kddqjdtltmrl1o3yitha7opcsd/f4pfvrvdv8pv5xv///////////////////yh5baekab8alaaaaaawabyaaav84ceozgmeakqubmteyzk547qobcfwtm/jgshq4rhmloxfiehqqsawr+z4iayaj0kegtfolizlwre4ocqwrxototaihmcz0tvgmbqkzhayyfewev14eq8iflhnehmfdqkaiskqci2pdc4qbg+oajc0ewadncogo6anqkkoiqa7" /> <img class="intlink" title="print" onclick="printdoc();" src="data:image/png;base64,ivborw0kggoaaaansuheugaaabyaaaawcayaaadetgw7aaaabgdbtueaalgpc/xhbqaaaazis0deap8a/wd/ol2nkwaaaalwsflzaaalewaacxmbajqcgaaaaad0su1fb9oebxczfmgboiwaaaaidevydenvbw1lbnqa9sywvwaaaufjrefuomvtlutsjfeux//n3nn0ydpbh1abrpt4lfqtqkc3jrkkneisiiribbehjjpklivo4m1rrmkkjqirmjruqudkpt71qpipirkpaqdf55tv5vvuszjqtjolseukd3xu/3dpzusc/22wtu2wrn+jg5...
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this - JavaScript
class context the behavior of this in classes and functions is similar, since classes are functions under the hood.
... within a class constructor, this is a regular object.
... all non-static methods within the class are added to the prototype of this: class example { constructor() { const proto = object.getprototypeof(this); console.log(object.getownpropertynames(proto)); } first(){} second(){} static third(){} } new example(); // ['constructor', 'first', 'second'] note: static methods are not properties of this.
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Forms related code snippets - Archive of obsolete content
tion"), odecryear = document.createelement("span"), oincryear = document.createelement("span"), odecrmonth = document.createelement("span"), oincrmonth = document.createelement("span"); var nid = ainstances.length, oth; this.target = otarget; this.display = document.createelement("span"); this.current = new date(); this.container = otable; this.display.classname = sprefs + "-current-month"; this.id = nid; otable.classname = sprefs + "-calendar"; otable.id = sprefs + "-cal-" + nid; odecryear.classname = sprefs + "-decrease-year"; odecrmonth.classname = sprefs + "-decrease-month"; oincrmonth.classname = sprefs + "-increase-month"; oincryear.classname = sprefs + "-increase-year"; odecryear.innerhtml = "\u00ab"; /* &laquo;...
...child(this.otbody); } this.otbody = document.createelement("tbody"); for (var nday, oday, niter = 0; niter < ntotal; niter++) { if (niter % 7 === 0) { otr = document.createelement("tr"); this.otbody.appendchild(otr); } nday = niter - nendblanks + 1; otd = document.createelement("td"); if (niter + 1 > nendblanks && niter < nend) { otd.classname = sprefs + "-active-cell"; otd.id = sprefs + "-day-" + this.id + "-" + nday; otd.onclick = ondayclick; otd.appendchild(document.createtextnode(nday)); } else { otd.classname = sprefs + "-empty-cell"; } otr.appendchild(otd); } this.display.innerhtml = smonthsnames[this.current.getmonth()] + " " + this.current.getfullyear(); this.co...
...ntainer.appendchild(this.otbody); }; function ondocclick (opssevt) { const oevt = opssevt || /* ie */ window.event; var boutside = true; for (var onode = oevt.target || /* ie */ oevt.srcelement; onode; onode = onode.parentnode) { if (onode.classname === sprefs + "-calendar" || onode.classname === sdpclass) { boutside = false; break; } } if (boutside) { return; } ainstances[onode.id.replace(rbgnnan, "")].container.style.zindex = nzindex++; } function onheadclick () { const bismonth = rmonth.test(this.id), ndelta = rdecrease.test(this.id) ?
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Dehydra Object Reference - Archive of obsolete content
for example, class types and typedefs are declared and will have a .loc property.
...for example, a pointer type will have .ispointer == true, but a class type will not have an .ispointer property.
...each member of the array has the following properties: { name: string, value: string or number, if applicable } see an example on enforcing final classes.
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Packages - Archive of obsolete content
summary a top-level object used to access java classes from within javascript code.
... description the packages object lets you access the public methods and fields of an arbitrary java class from within javascript.
...use standard java dot notation to access the classes, methods, and fields in these packages.
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Windows Media in Netscape - Archive of obsolete content
no wmp 7 or 9 control // can use wmp 6 also if necessary, but this is legacy software nowadays } if (player) { // windows media player control exists and it is version 7 or 9 // can use wmp 7 or 9 api -- call versioninfo property, only in 7 and 9 var versionstring = player.versioninfo; alert(versionstring); } only geckoactivexobject allows for the use of the windows media player classid as an argument.
... since classids are affiliated with individual activex controls in a unique manner, this allows for unique instantiation of controls.
... netscape 7.1 works with both windows media player 6.4 and with windows media players 7 and 9, but they have unique classids: windows media player 6.4 has this classid:22d6f312-b0f6-11d0-94ab-0080c74c7e95 windows media players 7 and 9 have this classid: 6bf52a52-394a-11d3-b153-00c04f79faa6 windows media player 6.4 and windows media player 7 and up are not backwards compatible in terms of apis (and thus have different classids).
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CSS selectors - Learn web development
in earlier articles you met some different selectors, and learned that there are selectors that target the document in different ways — for example by selecting an element such as h1, or a class such as .special.
...for example, if i have the same css for an h1 and also a class of .special, i could write this as two separate rules.
... in the following example, the invalid class selector rule will be ignored, whereas the h1 would still be styled.
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Ember Interactivity: Footer functionality, conditional rendering - Learn web development
a deeper understanding of modern javascript features (such as classes, modules, etc), will be extremely beneficial, as ember makes heavy use of them.
... objective: to continue our learning about components classes, start looking at conditional rendering, and wire up some of our footer functionality.
... because we need access to our service from the footer component, we need to generate a class for the footer.
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React interactivity: Editing, filtering, conditional rendering - Learn web development
copy this block of code into the todo() function, beneath your usestate() hook but above the return statement: const editingtemplate = ( <form classname="stack-small"> <div classname="form-group"> <label classname="todo-label" htmlfor={props.id}> new name for {props.name} </label> <input id={props.id} classname="todo-text" type="text" /> </div> <div classname="btn-group"> <button type="button" classname="btn todo-cancel"> cancel <span classname="visually-hidden">renaming {props.name}...
...</span> </button> <button type="submit" classname="btn btn__primary todo-edit"> save <span classname="visually-hidden">new name for {props.name}</span> </button> </div> </form> ); const viewtemplate = ( <div classname="stack-small"> <div classname="c-cb"> <input id={props.id} type="checkbox" defaultchecked={props.completed} onchange={() => props.toggletaskcompleted(props.id)} /> <label classname="todo-label" htmlfor={props.id}> {props.name} </label> </div> <div classname="btn-group"> <button type="button" classname="btn"> edit <span classname="visually-hidden">{props.name}</span> </button> <button type="button" ...
... classname="btn btn__danger" onclick={() => props.deletetask(props.id)} > delete <span classname="visually-hidden">{props.name}</span> </button> </div> </div> ); we've now got the two different template structures — "edit" and "view" — defined inside two separate constants.
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Implementing feature detection - Learn web development
a classic example might be to test for flexbox support in a browser; for browsers that support the newest flexbox spec, we could use a flexible and robust flex layout.
... <script src="modernizr-custom.js"></script> now edit your opening <html> tag, so that it looks like this: <html class="no-js"> at this point, try loading your page, and you'll get an idea of how modernizr works for css features.
... if you look at the dom inspector of your browser's developer tools, you'll see that modernizr has updated your <html> class value like so: <html class="js no-htmlimports sizes flash transferables applicationcache blobconstructor blob-constructor cookies cors ...and loads more values!> it now contains a large number of classes that indicate the support status of different technology features.
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Mozilla accessibility architecture
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.
...toolkit specific implementations should have "wrap" appended to the class name.
...nt and html object implementations accessible/src/xul/ user interface and xul object implementations accessible/src/msaa/ windows implementations accessible/src/atk/ atk implementations, may eventually be used on platforms other than linux and unix accessible/src/mac/ empty implementations of platform-specific classes for os x.
...And 7 more matches

Eclipse CDT
to quickly find the definition of an enum, class, method, etc.
... to see the inheritance tree for a class, select its name in an editor window and select "open type hierarchy" from the context menu.
...the results for "open type hierarchy" will show all classes in the class inheritance tree, and the classes that have methods that override the method will have a triangular red marker beside them.
...And 7 more matches

nss tech note1
how to use the nss asn.1 and quickder decoders nss technical note: 1 nss 3.6 contains several decoders for asn.1 and der.two of them are extensively used and are part of the public nss api : the "classic" asn.1 decoder, written by lisa repka .
...this decoder was written when performance issues were discovered with the classic decoder.
...quickder was written to be as compatible as possible with the classic decoder, in order to ease migration to it in areas of critical performance bottlenecks.
...And 7 more matches

JSNewResolveOp
jsnewresolveop is the type of the jsclass.resolve callback when the jsclass_new_resolve bit is set in the jsclass.flags field.
...this hook instead of jsresolveop is called via the jsclass.resolve member if jsclass_new_resolve is set in jsclass.flags.
... setting jsclass_new_resolve and jsclass_new_resolve_gets_start further extends this hook by passing in the starting object on the prototype chain via *objp.
...And 7 more matches

Xptcall Porting Guide
overview xptcall is a library that supports both invoking methods on arbitrary xpcom objects and implementing classes whose objects can impersonate any xpcom interface.
...the goal here is a class whose vtbl can look like the vtbl of any arbitrary xpcom interface.
... objects of this class can then be built to impersonate any xpcom object.
...And 7 more matches

CSS Animations tips and tricks - CSS: Cascading Style Sheets
<div class="box"> </div> <div class="runbutton">click me to run the animation</div> css content now we'll define the animation itself using css.
...6px; text-align: center; margin-top: 12px; padding-top: 2px; padding-bottom: 4px; color: white; background-color: darkgreen; font: 14px "open sans", "arial", sans-serif; } @keyframes colorchange { 0% { background: yellow } 100% { background: blue } } .box { width: 100px; height: 100px; border: 1px solid black; } .changing { animation: colorchange 2s; } there are two classes here.
... the "box" class is the basic description of the box's appearance, without any animation information included.
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Border-radius generator - CSS: Cascading Style Sheets
border-radius html content <div id="container"> <div class="group section"> <div id="preview" class="col span_12"> <div id="subject"> <div id="top-left" class="radius-container" data-x="left" data-y="top"> </div> <div id="top-right" class="radius-container" data-x="right" data-y="top"> </div> <div id="bottom-right" class="radius-container" data-x="right" data-y="bottom"> </div> <div id="bottom-left" class="radius-container" data-x="left" data-y="bottom"> </div> <div id="radius-...
...ui-sliders"> <div id="tlr" class="ui-input-slider" data-topic="top-left" data-unit=" px" data-sensivity="2"></div> <div id="tlw" class="ui-input-slider" data-topic="top-left-w" data-unit=" px" data-sensivity="2"></div> <div id="tlh" class="ui-input-slider" data-topic="top-left-h" data-unit=" px" data-sensivity="2"></div> <div id="trr" class="ui-input-slider" data-topic="top-right" data-unit=" px" data-sensivity="2"></div> <div id="trw" class="ui-input-slider" data-topic="top-right-w" data-unit=" px" data-sensivity="2"></div> <div id="trh" class="ui-i...
...nput-slider" data-topic="top-right-h" data-unit=" px" data-sensivity="2"></div> <div id="brr" class="ui-input-slider" data-topic="bottom-right" data-unit=" px" data-sensivity="2"></div> <div id="brw" class="ui-input-slider" data-topic="bottom-right-w" data-unit=" px" data-sensivity="2"></div> <div id="brh" class="ui-input-slider" data-topic="bottom-right-h" data-unit=" px" data-sensivity="2"></div> <div id="blr" class="ui-input-slider" data-topic="bottom-left" data-unit=" px" data-sensivity="2"></div> <div id="blw" class="ui-input-slider" data-topic="bottom-left-w" ...
...And 7 more matches

static - JavaScript
the static keyword defines a static method for a class.
... static methods aren't called on instances of the class.
... instead, they're called on the class itself.
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Layout System Overview - Archive of obsolete content
core classes at the highest level, the layout system is a group of classes that manages the presentation within a fixed width and either unlimited height (galley presentation) or discrete page heights (paged presentation).
...here are the high-level classes that make up the layout system.
... of course this is a small percentage of the total classes in layout (see the detailed design documents for the details on all of the classes, in the context of their actual role).
...And 6 more matches

Space Manager High Level Design - Archive of obsolete content
overview the space manager and associated classes and structures are used by block and line layout to manage rectangular regions that are occupied and available, for correct handling of floated elements and the elements that flow around them.
...the space manager works in concert with several other classes to do its job.
... the classes that are considered part of the space manager are: nsspacemanager nsbanddata nsblockbanddata bandrect / bandlist (private structs) frameinfo (private struct) nsbandtrapezoid outside of the space manager itself, the clients of the space manager also play an important part in the management of he available and used space.
...And 6 more matches

Complete - Archive of obsolete content
in seamonkey it supports two themes (classic and modern).
...these themes are: classic for firefox etc.
... classic for seamonkey modern for seamonkey to make it easier to support different themes, developers place anything that might depend on the theme in separate files in a separate directory.
...And 6 more matches

Obsolete: XPCOM-based scripting for NPAPI plugins - Archive of obsolete content
this class will contain native methods callable from javascript.
... this class should also inherit from nsiclassinfo and implement its methods to be able to request all necessary privileges from the mozilla security manager (see example 2).
...build nptestplugin.dll with nsitestplugin.h included for compiling scriptable instance class implementaion.
...And 6 more matches

Visual typescript game engine - Game development
networking is based on websocket full-duplex communication only.you must be conform with classic socket connection methodology.
... look back on main staff : -class 'connector' (native websocket) used for user session staff.
...the setup this on false in main client config class.
...And 6 more matches

Styling links - Learn web development
previous overview: styling text next when styling links, it is important to understand how to make use of pseudo-classes to style link states effectively, and how to style links for use in common varied interface features such as navigation menus and tabs.
... link states the first thing to understand is the concept of link states — different states that links can exist in, which can be styled using different pseudo-classes: link (unvisited): the default state that a link resides in, when it isn't in any other state.
... this can be specifically styled using the :link pseudo class.
...And 6 more matches

HTML text fundamentals - Learn web development
playable code <h2>live output</h2> <div class="output" style="min-height: 50px;"> </div> <h2>editable code</h2> <p class="a11y-label">press esc to move focus away from the code area (tab inserts a tab character).</p> <textarea id="code" class="input" style="min-height: 100px; width: 95%">my short story i am a statistician and my name is trish.
... my legs are made of cardboard and i am married to a fish.</textarea> <div class="playable-buttons"> <input id="reset" type="button" value="reset"> <input id="solution" type="button" value="show solution"> </div> html { font-family: sans-serif; } h2 { font-size: 16px; } .a11y-label { margin: 0; text-align: right; font-size: 0.7rem; width: 98%; } body { margin: 10px; background: #f5f9fa; } var textarea = document.getelementbyid('code'); var reset = document.getelementbyid('reset'); var solution = document.getelementbyid('solution'); var output = document.queryselector('.output'); var code = textarea.value; var userentry = textarea.value; function updatecode() { output.innerhtml = textarea.value; } reset.addeventlistener('click', function() { textarea.value = code...
... playable code <h2>live output</h2> <div class="output" style="min-height: 50px;"> </div> <h2>editable code</h2> <p class="a11y-label">press esc to move focus away from the code area (tab inserts a tab character).</p> <textarea id="code" class="input" style="min-height: 100px; width: 95%">milk eggs bread hummus</textarea> <div class="playable-buttons"> <input id="reset" type="button" value="reset"> <input id="solution" type="button" va...
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Index - Learn web development
at this point you should understand javascript object and oop basics, prototypes and prototypal inheritance, how to create classes (constructors) and object instances, add features to classes, and create subclasses that inherit from other classes.
... 107 css selectors attribute, beginner, css, class, learn, pseudo, selectors, id in css, selectors are used to target the html elements on our web pages that we want to style.
... 110 pseudo-classes and pseudo-elements beginner, css, learn, pseudo, pseudo-class, pseudo-element, selectors the next set of selectors we will look at are referred to as pseudo-classes and pseudo-elements.
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How Mozilla's build system works
reader.py contains the code that defines the moz.build sandbox (the mozbuildsandbox class) and the code for traversing a tree of moz.build files (the buildreader class) by following dirs and tiers variables.
... the mozbuildsandbox stream produced by the buildreader is typically fed into the treemetadataemitter class from emitter.py.
...these data structures are the classes defined in data.py.
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mach
here is a minimal mach command module: from __future__ import print_function, unicode_literals from mach.decorators import ( commandargument, commandprovider, command, ) @commandprovider class machcommands(object): @command('doit', description='run it!') @commandargument('--debug', '-d', action='store_true', help='do it in debug mode.') def doit(self, debug=false): print('i did it!') from mach.decorators we import some python decorators which are used to define what python code corresponds to mach commands.
... the decorators are: @commandprovider this is a class decorator that tells mach that this class contains methods that implement mach commands.
... the class and method names can be whatever you want.
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Overview of Mozilla embedding APIs
public classes the following utility classes are available from the xpcom dll.
... nsstring there are a collection of string classes which support both unicode and ascii strings.
... these classes provide a variety of string operations as well as dealing with the memory management issues of storing the underlying data.
...And 6 more matches

Small Footprint
on a recent build, the length of js.jar was 603,127 bytes corresponding to 1,171,708 bytes of all uncompressed rhino classes with debug information included.
... with various changes js.jar size can be reduced to 204,689 bytes corresponding to 424,774 bytes of uncompressed classes.
... tools most embeddings won't need any of the classes in org.mozilla.javascript.tools or any of its sub-packages.
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JS_InstanceOf
determine if an object is an instance of a specified jsclass.
... syntax bool js_instanceof(jscontext *cx, js::handle<jsobject*> obj, const jsclass *clasp, js::callargs *args); // added in spidermonkey 38 bool js_instanceof(jscontext *cx, js::handle<jsobject*> obj, const jsclass *clasp, jsval *argv); // obsolete since jsapi 32 name type description cx jscontext * pointer to a js context from which to derive runtime information.
... clasp jsclass * class against which to test the object.
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JS_PropertyStub
default implementations of the required callbacks in jsclass.
...examples at jsclass illustrate how stub functions can be used.
...it can be used in jsclass.addproperty, and jsclass.getproperty.
...And 6 more matches

RefPtr
refptr (formerly known as nsrefptr, see bug 1207245) is a general class to implement reference counting pointers for objects.
...this is done using the functions addref() and release(), which respectively modify a variable of type nsautorefcnt, which basically is a wrapper around a count of the number of references refering to the class.
... the rules are simple: use nscomptr to hold pointers to xpcom interfaces, and use refptr to hold pointers to concrete class, even if the concrete class implements one or more xpcom interfaces.
...And 6 more matches

nsIPromptService
to get an instance, use: var promptservice = components.classes["@mozilla.org/embedcomp/prompt-service;1"] .getservice(components.interfaces.nsipromptservice); method overview void alert(in nsidomwindow aparent, in wstring adialogtitle, in wstring atext); void alertcheck(in nsidomwindow aparent, in wstring adialogtitle, in wstring atext, in wstring acheckmsg, inout boolean acheckstate); boolean confi...
... var prompts = components.classes["@mozilla.org/embedcomp/prompt-service;1"] .getservice(components.interfaces.nsipromptservice); prompts.alert(null, "title of this dialog", "hello!
... var prompts = components.classes["@mozilla.org/embedcomp/prompt-service;1"] .getservice(components.interfaces.nsipromptservice); var check = {value: false}; // default the checkbox to false prompts.alertcheck(null, "title of this dialog", "hello!
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Examine and edit CSS - Firefox Developer Tools
you can: toggle pseudo-classes; toggle classes; add a new rule; change the display based on the color scheme preference (as of firefox 72, you must set devtools.inspector.color-scheme-simulation.enabled to true in the configuration editor to enable this feature); change the display based on print media rules.
...r-spin-down :-moz-number-spin-up :-moz-number-text :-moz-number-wrapper :-moz-placeholder :-moz-progress-bar :-moz-range-progress :-moz-range-thumb :-moz-range-track :-moz-selection if the selected element has pseudo-elements applied to it, they are displayed before the selected element but hidden by a disclosure triangle: clicking the triangle displays them: viewing common pseudo-classes there's a button to the right of the filter box: click the button to see checkboxes that you can use to enable the :hover, :active and :focus, :focus-within and :visited pseudo-classes for the selected element: this feature can also be accessed from the popup menu in the html view.
... if you enable one of these pseudo-classes for a node, an orange dot appears in the markup view next to all nodes to which the pseudo-class has been applied.
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ValidityState - Web APIs
if true, the element matches the :invalid css pseudo-class.
...if true, the element matches the :invalid and :out-of-range and css pseudo-classes.
...if true, the element matches the :invalid and :out-of-range css pseudo-classes.
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Example and tutorial: Simple synth keyboard - Web APIs
<div class="container"> <div class="keyboard"></div> </div> the <div> named "container" is the scrollable box that lets the keyboard be scrolled horiontally if it's too wide for the available space.
... the keys themselves will be inserted into the block of class "keyboard".
... <div class="settingsbar"> <div class="left"> <span>volume: </span> <input type="range" min="0.0" max="1.0" step="0.01" value="0.5" list="volumes" name="volume"> <datalist id="volumes"> <option value="0.0" label="mute"> <option value="1.0" label="100%"> </datalist> </div> we specify a default value of 0.5, and we provide a <datalist> element which is connected to the...
...And 6 more matches

Box alignment in CSS Grid Layout - CSS: Cascading Style Sheets
dding: 1em; color: #d9480f; } .wrapper { display: grid; grid-template-columns: repeat(8, 1fr); grid-gap: 10px; grid-auto-rows: 100px; grid-template-areas: "a a a a b b b b" "a a a a b b b b" "c c c c d d d d" "c c c c d d d d"; align-items: start; } .item1 { grid-area: a; } .item2 { grid-area: b; } .item3 { grid-area: c; } .item4 { grid-area: d; } <div class="wrapper"> <div class="item1">item 1</div> <div class="item2">item 2</div> <div class="item3">item 3</div> <div class="item4">item 4</div> </div> keep in mind that once you set align-items: start, the height of each child <div> will be determined by the contents of the <div>.
...apper { display: grid; grid-template-columns: repeat(8, 1fr); grid-gap: 10px; grid-auto-rows: 100px; grid-template-areas: "a a a a b b b b" "a a a a b b b b" "c c c c d d d d" "c c c c d d d d"; } .item1 { grid-area: a; } .item2 { grid-area: b; align-self: start; } .item3 { grid-area: c; align-self: end; } .item4 { grid-area: d; align-self: center; } <div class="wrapper"> <div class="item1">item 1</div> <div class="item2">item 2</div> <div class="item3">item 3</div> <div class="item4">item 4</div> </div> items with an intrinsic aspect ratio the specification details that the default behavior in align-self is to stretch, except for items which have an intrinsic aspect ratio, in this case they behave as start.
...{ display: grid; grid-template-columns: repeat(8, 1fr); grid-gap: 10px; grid-auto-rows: 100px; grid-template-areas: "a a a a b b b b" "a a a a b b b b" "c c c c d d d d" "c c c c d d d d"; } .item1 { grid-area: a; } .item2 { grid-area: b; justify-self: start; } .item3 { grid-area: c; justify-self: end; } .item4 { grid-area: d; justify-self: center; } <div class="wrapper"> <div class="item1">item 1</div> <div class="item2">item 2</div> <div class="item3">item 3</div> <div class="item4">item 4</div> </div> as with align-self and align-items, you can apply justify-items to the grid container, to set the justify-self value for all items.
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Line-based placement with CSS Grid - CSS: Cascading Style Sheets
* {box-sizing: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } .wrapper { display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 100px); } <div class="wrapper"> <div class="box1">one</div> <div class="box2">two</div> <div class="box3">three</div> <div class="box4">four</div> </div> positioning items by line number we can use line-based placement to control where these items sit on the grid.
... * {box-sizing: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 100px); } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } <div class="wrapper"> <div class="box1">one</div> <div class="box2">two</div> <div class="box3">three</div> <div class="box4">four</div> </div> .box1 { grid-column-start: 1; grid-column-end: 2; grid-row-start: 1; grid-row-end: 4; } .box2 { grid-column-start: 3; grid-column-end: 4; grid-row-start: 1; grid-row-end: 3; } .box3 { grid-column-start: 2; grid-column-end:...
... * {box-sizing: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 100px); } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } <div class="wrapper"> <div class="box1">one</div> <div class="box2">two</div> <div class="box3">three</div> <div class="box4">four</div> </div> .box1 { grid-column: 1 / 2; grid-row: 1 / 4; } .box2 { grid-column: 3 / 4; grid-row: 1 / 3; } .box3 { grid-column: 2 / 3; grid-row: 1 / 2; } .box4 { grid-column: 2 / 4; grid-row: 3 / 4; } default spans in the above exampl...
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Introduction - JavaScript
in contrast to java's compile-time system of classes built by declarations, javascript supports a runtime system based on a small number of data types representing numeric, boolean, and string values.
... javascript has a prototype-based object model instead of the more common class-based object model.
...you do not have to declare all variables, classes, and methods.
...And 6 more matches

JavaScript modules - JavaScript
est way to use it is to place it in front of any items you want exported out of the module, for example: export const name = 'square'; export function draw(ctx, length, x, y, color) { ctx.fillstyle = color; ctx.fillrect(x, y, length, length); return { length: length, x: x, y: y, color: color }; } you can export functions, var, let, const, and — as we'll see later — classes.
... modules and classes as we hinted at earlier, you can also export and import classes; this is another option for avoiding conflicts in your code, and is especially useful if you've already got your module code written in an object-oriented style.
... you can see an example of our shape drawing module rewritten with es classes in our classes directory.
...And 6 more matches

Inheritance and the prototype chain - JavaScript
javascript is a bit confusing for developers experienced in class-based languages (like java or c++), as it is dynamic and does not provide a class implementation per se (the class keyword is introduced in es2015, but is syntactical sugar, javascript remains prototype-based).
... while this confusion is often considered to be one of javascript's weaknesses, the prototypal inheritance model itself is, in fact, more powerful than the classic model.
... it is, for example, fairly trivial to build a classic model on top of a prototypal model.
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dev/panel - Archive of obsolete content
basic usage defining the panel constructor to add a new tool you first need to define a constructor that inherits from the panel class, and in that constructor you need to supply values for various properties .
...you can use the class utility function: const { panel } = require("dev/panel"); const { class } = require("sdk/core/heritage"); const mypanel = class({ extends: panel, label: "my panel", tooltip: "my new devtool", icon: "./my-devtool.png", url: "./my-devtool.html", setup: function(options) { // my setup goes here }, dispose: function() { // my teardown goes here }, onready: function() { // i can send messages to // the panel document here } }); alternatively, you can use the extend function: const { extend } = require("sdk/core/heritage"); function mypanel() {}; mypanel.prototype = extend(panel.
... example here's a complete main.js: // main.js // require the sdk modules const { panel } = require("dev/panel"); const { tool } = require("dev/toolbox"); const { class } = require("sdk/core/heritage"); // define the panel constructor const mypanel = class({ extends: panel, label: "my panel", tooltip: "my new devtool's panel", icon: "./my-icon.png", url: "./my-panel.html", // when the panel is created, // take a reference to the debuggee setup: function(options) { this.debuggee = options.debuggee; }, dispose: function() { this.debugg...
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Creating Event Targets - Archive of obsolete content
ookmarks = require("./bookmarks"); function logadded(uri) { console.log("added: " + uri); } function logvisited(uri) { console.log("visited: " + uri); } exports.main = function() { bookmarks.on("added", logadded); bookmarks.on("visited", logvisited); }; exports.onunload = function() { bookmarks.removelistener("added", logadded); bookmarks.removelistener("visited", logvisited); } classes as event targets sometimes we want to emit events at the level of individual objects, rather than at the level of the module.
... to do this, we can inherit from the sdk's eventtarget class.
... in this example, we could define a class bookmarkmanager that inherits from eventtarget and emits added and visited events.
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The Essentials of an Extension - Archive of obsolete content
if we open the chrome.manifest file (again, any text editor will do), we see that the same 3 sections are mentioned: content xulschoolhello content/ skin xulschoolhello classic/1.0 skin/ locale xulschoolhello en-us locale/ the chrome.manifest file tells firefox where to look for chrome files.
...the most common case is having one skin entry for the global skin, classic/1.0, and multiple locale entries, one for each translation.
...if our extension needed to look differently on different systems, we could change the manifest file so that it looks like this: content xulschoolhello content/ skin xulschoolhello classic/1.0 skin/unix/ skin xulschoolhello classic/1.0 skin/mac/ os=darwin skin xulschoolhello classic/1.0 skin/win/ os=winnt locale xulschoolhello en-us locale/ this way we can have separate skins for windows, mac os x, and linux (plus other unix-like systems), each defined in a separate directory.
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XPCOM Objects - Archive of obsolete content
this.obsservice = cc["@mozilla.org/observer-service;1"].getservice(ci.nsiobserverservice); the cc object (components.classes) is an index to static objects and class definitions available through xpcom.
...if you want to see the list in your current firefox installation, just run the following code in the error console: var str = ""; for (var i in components.classes) { str += i + "\n" }; str a run on firefox 3.6.2 with a few extensions installed yields 876 strings.
... components are either services (static objects) or instances of classes, just like the objects we handle in js.
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In-Depth - Archive of obsolete content
using this, we can figure out what objects are where, what classes/id's they have applied to them, and most importantly, which file the style is located in.
...you'll notice that the .toolbar-1 class is located here.
...place this xml file in \classic\skin\classic\communicator\toolbar\toolbarbindings.xml (you will need to create the sub directory).
...And 5 more matches

Space Manager Detailed Design - Archive of obsolete content
overview the space manager and related classes and structures are an important of the gecko layout system, specifically block layout.
... see the high level design document for an overview of the space manager, and as an introduction to the classes, structures and algorithms container in this, the detailed design document.
... nsspacemanager the space manager is the central class is a group of classes that manage the occupied and available space that exists in horizontal bands across a canvas.
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Adding Style Sheets - Archive of obsolete content
<spacer class="titlespace"/> <groupbox orient="horizontal"> <caption label="search criteria"/> <menulist id="searchtype"> <menupopup> <menuitem label="name"/> <menuitem label="size"/> <menuitem label="date modified"/> </menupopup> </menulist> <spacer class="springspace"/> <menulist id="searchmode"> <menupopup> <menui...
...tem label="is"/> <menuitem label="is not"/> </menupopup> </menulist> <spacer class="springspace"/> <menulist id="find-text" flex="1" editable="true" datasources="file:///mozilla/recents.rdf" ref="http://www.xulplanet.com/rdf/recent/all"/> ...
... <spacer class="titlespace"/> <hbox> <progressmeter id="progmeter" value="50%" style="display:none;"/> the new xml-stylesheet line is used to import the style sheet.
...And 5 more matches

image - Archive of obsolete content
attributes onerror, onload, src, validate properties accessibletype, src style classes alert-icon, error-icon, message-icon, question-icon examples <image src='firefoxlogo.png' width='135' height='130'/> attributes onerror type: script code this event is sent to an image element when an error occurs loading the image.
... inherited properties align, , allowevents, , boxobject, builder, , , , classname, , , , , collapsed, contextmenu, controllers, database, datasources, dir, , , flex, height, hidden, id, , , left, , maxheight, maxwidth, menu, minheight, minwidth, , , , , , , observes, ordinal, orient, , pack, , persist, , , , ref, resource, , , , , statustext, style, ,, tooltip, tooltiptext, top, width methods inherited methods addeventlistener(), appendchild(), blur, click, clone...
...node(), comparedocumentposition, dispatchevent(), docommand, focus, getattribute(), getattributenode(), getattributenodens(), getattributens(), getboundingclientrect(), getclientrects(), getelementsbyattribute, getelementsbyattributens, getelementsbyclassname(), getelementsbytagname(), getelementsbytagnamens(), getfeature, getuserdata, hasattribute(), hasattributens(), hasattributes(), haschildnodes(), insertbefore(), isdefaultnamespace(), isequalnode, issamenode, issupported(), lookupnamespaceuri, lookupprefix, normalize(), queryselector(), queryselectorall(), removeattribute(), removeattributenode(), removeattributens(), removechild(), removeeventlistener(), replacechild(), setattribute(), setattributenode(), setattributenodens(), setattributens(), setuserdata style classes aler...
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<statusbarpanel> - Archive of obsolete content
attributes crop, image, label properties image, label style classes statusbarpanel-iconic, statusbarpanel-iconic-text, statusbarpanel-menu-iconic examples <statusbar> <statusbarpanel label="left panel"/> <spacer flex="1"/> <progressmeter mode="determined" value="82"/> <statusbarpanel label="right panel"/> </statusbar> attributes crop type: one of the values below if the label of the element is too big to fit in its given spa...
... inherited properties align, , allowevents, , boxobject, builder, , , , classname, , , , , collapsed, contextmenu, controllers, database, datasources, dir, , , flex, height, hidden, id, , , left, , maxheight, maxwidth, menu, minheight, minwidth, , , , , , , observes, ordinal, orient, , pack, , persist, , , , ref, resource, , , , , statustext, style, ,, tooltip, tooltiptext, top, width methods inherited methods addeventlistener(), appendchild(), blur, click, clone...
...node(), comparedocumentposition, dispatchevent(), docommand, focus, getattribute(), getattributenode(), getattributenodens(), getattributens(), getboundingclientrect(), getclientrects(), getelementsbyattribute, getelementsbyattributens, getelementsbyclassname(), getelementsbytagname(), getelementsbytagnamens(), getfeature, getuserdata, hasattribute(), hasattributens(), hasattributes(), haschildnodes(), insertbefore(), isdefaultnamespace(), isequalnode, issamenode, issupported(), lookupnamespaceuri, lookupprefix, normalize(), queryselector(), queryselectorall(), removeattribute(), removeattributenode(), removeattributens(), removechild(), removeeventlistener(), replacechild(), setattribute(), setattributenode(), setattributenodens(), setattributens(), setuserdata style classes the followin...
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GetObject - Archive of obsolete content
syntax getobject([pathname] [, class]) parameters pathname full path and name of the file containing the object to retrieve.
... if pathname is omitted, class is required.
... class optional class of the object.
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JavaPackage - Archive of obsolete content
description in java, a package is a collection of java classes or other java packages.
... for example, the netscape package contains the package netscape.javascript; the netscape.javascript package contains the classes jsobject and jsexception.
... a javaclass object is a reference to one of the classes in a package, such as netscape.javascript.jsobject.
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WAI-ARIA basics - Learn web development
for example, html5 introduced a number of semantic elements to define common page features (<nav>, <footer>, etc.) before these were available, developers would simply use <div>s with ids or classes, e.g.
... <div class="nav">, but these were problematic, as there was no easy way to easily find a specific page feature such as the main navigation programmatically.
... the initial solution was to add one or more hidden links at the top of the page to link to the navigation (or whatever else), for example: <a href="#hidden" class="hidden">skip to navigation</a> but this is still not very precise, and can only be used when the screenreader is reading from the top of the page.
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Debugging CSS - Learn web development
try selecting the element with the class of box1; this is the first element on the page with a bordered box drawn around it.
...you will see the rules directly applied to class box1 and also the css that is being inherited by the box from its ancestors, in this case to <body>.
... compare the two boxes with classes box1 and box2.
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Grids - Learn web development
simple grid example body { width: 90%; max-width: 900px; margin: 2em auto; font: .9em/1.2 arial, helvetica, sans-serif; } .container > div { border-radius: 5px; padding: 10px; background-color: rgb(207,232,220); border: 2px solid rgb(79,185,227); } <div class="container"> <div>one</div> <div>two</div> <div>three</div> <div>four</div> <div>five</div> <div>six</div> <div>seven</div> </div> .container { display: grid; grid-template-columns: 200px 200px 200px; } flexible grids with the fr unit in addition to creating grids using lengths and percentages, we can use the fr unit to flexibly size grid rows and columns.
... simple grid example with fr units body { width: 90%; max-width: 900px; margin: 2em auto; font: .9em/1.2 arial, helvetica, sans-serif; } .container { display: grid; grid-template-columns: 2fr 1fr 1fr; } .container > div { border-radius: 5px; padding: 10px; background-color: rgb(207,232,220); border: 2px solid rgb(79,185,227); } <div class="container"> <div>one</div> <div>two</div> <div>three</div> <div>four</div> <div>five</div> <div>six</div> <div>seven</div> </div> note: the fr unit distributes available space, not all space.
... simple grid example with fr units body { width: 90%; max-width: 900px; margin: 2em auto; font: .9em/1.2 arial, helvetica, sans-serif; } .container { display: grid; grid-template-columns: 2fr 1fr 1fr; grid-gap: 20px; } .container > div { border-radius: 5px; padding: 10px; background-color: rgb(207,232,220); border: 2px solid rgb(79,185,227); } <div class="container"> <div>one</div> <div>two</div> <div>three</div> <div>four</div> <div>five</div> <div>six</div> <div>seven</div> </div> note: the *gap properties used to be prefixed by grid-, but this has been changed in the spec, as the intention is to make them usable in multiple layout methods.
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Creating Custom Events That Can Pass Data
what's in a name despite whatever you may have been taught in your english class, there's a lot in a name when it's an event name.
...mozilla/dom/base/nsdomclassinfoclasses.h the change you make here is really rather small but it is incredibly important.
... if you peruse nsdomclassinfoclasses.h you'll see of list of macros of the form domci_class(foo).
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How to implement a custom autocomplete search component
first best try because: it has no specific logic (it just returns a dummy array of choices) it doesn't care about compatibility with older gecko versions first copy the following javascript code into a file named basic_autocomplete.js into the components directory (or whatever components folder is appropriate in your case): warning: the uuid used below in chrome.manifest and assigned to class_id must be changed before use.
... const ci = components.interfaces; const cu = components.utils; cu.import('resource://gre/modules/xpcomutils.jsm'); const class_id = components.id('x753d830-ba1e-11e0-962b-0800200c9a66'); // ← change this const class_name = "basic autocomplete"; const contract_id = '@mozilla.org/autocomplete/search;1?name=basic-autocomplete'; /** * @constructor * * @implements {nsiautocompleteresult} * * @param {string} searchstring * @param {number} searchresult * @param {number} defaultindex * @param {string} errordescription * @param {array.<string>} results * @param {array.<string>|null=} comments */ function providerautocompleteresult(searchstring, searchresult, defaultindex, errordescription, results, comments) { this._searchstring = searchstring; this._searchresult = searchresult; ...
... this._results.splice(index, 1); if (this._comments) this._comments.splice(index, 1); }, getlabelat: function(index) { return this._results[index]; }, queryinterface: xpcomutils.generateqi([ ci.nsiautocompleteresult ]) }; /** * @constructor * * @implements {nsiautocompletesearch} */ function providerautocompletesearch() { } providerautocompletesearch.prototype = { classid: class_id, classdescription : class_name, contractid : contract_id, /** * searches for a given string and notifies a listener (either synchronously * or asynchronously) of the result * * @param searchstring the string to search for * @param searchparam an extra parameter * @param previousresult a previous result to use for faster searchinig * @param listener the list...
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Refcount tracing and balancing
refcount tracing logs calls to addref and release, preferably for a particular set of classes, including call-stacks in symbolic form (on platforms that support this).
... warning: you should never use this without xpcom_mem_log_classes and/or xpcom_mem_log_objects, because without some filtering the logging will be completely useless due to how slow the browser will run and how large the logs it produces will be.
... you must also set one or two additional environment variables, xpcom_mem_log_classes and xpcom_mem_log_objects, to reduce the set of objects being logged, in order to improve performance to something vaguely tolerable.
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JSGetObjectOps
jsgetobjectops is the type for jsclass.getobjectops callback syntax typedef jsobjectops * (* jsgetobjectops)(jscontext *cx, jsclass *clasp); name type description cx jscontext * the js context in which the new object is being created.
... cls jsclass * the class of the new object.
... description jsobjectops is used by js_newobject's internals to discover the set of high-level object operations to use for new objects of the given class.
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SpiderMonkey 1.8.5
support for extended class methods (in particular, jsequalityop) has been removed.
...jsextendedclass jsextendedclass has been removed from the api entirely.
...global objects must also have the jsclass_global_flags flag set.
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How to build an XPCOM component in JavaScript
to begin, include a line at the top of your interface to import the xpcomutils library: components.utils.import("resource://gre/modules/xpcomutils.jsm"); then implement your interface the same way you did above, except with a few modifications so that xpcomutils can set it up properly: /*********************************************************** class definition ***********************************************************/ //class constructor function helloworld() { // if you only need to access your component from javascript, uncomment the following line: //this.wrappedjsobject = this; } // class definition helloworld.prototype = { // properties required for xpcom registration: classdescription: "my hello world javascript xpcom componen...
...t", classid: components.id("{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}"), contractid: "@dietrich.ganx4.com/helloworld;1", // [optional] custom factory (an object implementing nsifactory).
... category: "some-category", // optional, defaults to the object's classdescription entry: "entry name", // optional, defaults to the object's contractid (unless 'service' is specified) value: "...", // optional, defaults to false.
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Getting Started Guide
it is a template class that acts, syntactically, just like an ordinary pointer in c or c++, i.e., you can apply * or -> to it to "get to" what it points at.
...they reference it only through a pointer to an `interface', i.e., the static type of the pointer is a pointer to an abstract base class, the actual object pointed to is a class derived from that abstract base class.
...to facilitate this, all interfaces inherit from an abstract base class that provides the member functions addref, and release.
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nsCOMPtr versus RefPtr
this basic rule derives from the fact that some of the nscomptr<t> code is factored into the nscomptr_base base class, which stores the underlying mrawptr as an nsisupports*.
...many concrete classes inherit from nsisupports in more than one way, so they cannot be unambiguously cast to nsisupports*.
... thus, these concrete classes cannot be used with nscomptr.
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Address Book examples
let abmanager = components.classes["@mozilla.org/abmanager;1"] .getservice(components.interfaces.nsiabmanager); let alladdressbooks = abmanager.directories; while (alladdressbooks.hasmoreelements()) { let addressbook = alladdressbooks.getnext() .queryinterface(components.interfaces.nsiabdirectory); if (addressbook instanceof components.interfaces.nsiabdirectory) ...
...assuming you have the uri, then use the address book manager to get an nsiabdirectory representing the address book: let abmanager = components.classes["@mozilla.org/abmanager;1"] .getservice(components.interfaces.nsiabmanager); let oneaddressbook = abmanager.getdirectory(addressbookuri); how do i search for a particular contact property (name, email)?
... assuming you wish to search across multiple directories: let abmanager = components.classes["@mozilla.org/abmanager;1"] .getservice(components.interfaces.nsiabmanager); let alladdressbooks = abmanager.directories; while (alladdressbooks.hasmoreelements()) { let ab = alladdressbooks.getnext(); if (ab instanceof components.interfaces.nsiabdirectory && !ab.isremote) { let searchresult = abmanager.getdirectory(ab.uri + "?" + searchquery).childcard...
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Mozilla
in the case where the c++ object has class info (nsiclassinfo), the jsobject is a more or less empty jsobject which is not really that special.
... all the methods that are supposed to show up on this jsobject are actually not properties of the object itself, but rather properties of the prototype of the jsobject for the wrapper (unless the c++ object's class info has the flag nsixpcscriptable::dont_share_prototype set, but lets assume that's not the case here).
... mozilla dom hacking guide mozilla gives you the opportunity not only to use very powerful and complete dom support, but also to work on a world-class implementation of one of the greatest internet technologies ever created.
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Plug-in Basics - Plugins
y: hidden !important; width: 0px !important; height: 0px !important; margin: 0px !important; padding: 0px !important; border-style: none !important; border-width: 0px !important; max-width: 0px !important; max-height: 0px !important; } in this case, the object element that picks up these special style definitions would have a class of hidden.
... using the class attribute and the css block above, you can simulate the behavior of the hidden plug-in in the embed element: <object data="audiplay.aiff" type="audio/x-aiff" class="hiddenobject"></object> a full-page plug-in is a visible plug-in that is not part of an html page.
...so, for example, though gecko does not support the classid attribute of the object element - which was used for java classes and activex plug-ins embedded in pages - object elements can be nested to support different plug-in implementations.
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Examine and edit HTML - Firefox Developer Tools
as you type, an autocomplete popup shows any class or id attributes that match the current search term: press up and down to cycle through suggestions, tab to choose the current suggestion, then enter to select the first node with that attribute.
... ::before and ::after you can inspect pseudo-elements added using ::before and ::after: custom element definition when you open the inspector on a page that includes custom elements, you can view the class definition for the custom element in the debugger: inspect the element click on the word custom the source for the element's class will be displayed in the debugger.
... subtree modification attribute modification node removal use in console show dom properties show accessibility properties change pseudo-class hover active focus focus-within visited screenshot node scroll into view copy inner html outer html css selector css path xpath image data-url attribute paste inner html outer html before after as first child as last child expand all collapse all open link in new tab * open file in debugger * open file in style...
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:is() (:matches(), :any()) - CSS: Cascading Style Sheets
the :is() css pseudo-class function takes a selector list as its argument, and selects any element that can be selected by one of the selectors in that list.
... note that currently browsers support this functionality as :matches(), or through an older, prefixed pseudo-class — :any(), including older versions of chrome, firefox, and safari.
...<subclass-selector>* [ <pseudo-element-selector> <pseudo-class-selector>* ]* ]!<combinator> = '>' | '+' | '~' | [ '|' ]where <type-selector> = <wq-name> | <ns-prefix>?
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:nth-child() - CSS: Cascading Style Sheets
the :nth-child() css pseudo-class matches elements based on their position in a group of siblings.
... /* selects the second <li> element in a list */ li:nth-child(2) { color: lime; } /* selects every fourth element among any group of siblings */ :nth-child(4n) { color: lime; } syntax the nth-child pseudo-class is specified with a single argument that describes a pattern for matching element indices in a list of siblings.
...<subclass-selector>* [ <pseudo-element-selector> <pseudo-class-selector>* ]* ]!<combinator> = '>' | '+' | '~' | [ '|' ]where <type-selector> = <wq-name> | <ns-prefix>?
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CSS grids, logical values, and writing modes - CSS: Cascading Style Sheets
in the code snippet below, the item is placed 20 pixels from the top, and 30 pixels from the left of the container: .container { position: relative; } .item { position: absolute; top: 20px; left: 30px; } <div class="container"> <div class="item">item</div> </div> another place you might see physical keywords in use, is when using text-align: right to align text to the right.
... .wrapper > p { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; margin: 1em; color: #d9480f; max-width: 300px; } <div class="wrapper"> <p style="writing-mode: horizontal-tb">i have writing mode set to the default <code>horizontal-tb</code></p> <p style="writing-mode: vertical-rl">i have writing mode set to <code>vertical-rl</code></p> </div> writing modes in grid layouts if we now take a look at a grid layout example, we can see how changing the writing mode means changing our idea of where the block and in...
...: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } .wrapper { display: grid; grid-template-columns: repeat(3, 100px); grid-template-rows: repeat(2, 100px); grid-gap: 10px; } <div class="wrapper"> <div class="item1">item 1</div> <div class="item2">item 2</div> <div class="item3">item 3</div> <div class="item4">item 4</div> <div class="item5">item 5</div> </div> if we add writing-mode: vertical-lr to the grid container, we can see that the block and inline axis are now running in a different direction.
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Using CSS custom properties (variables) - CSS: Cascading Style Sheets
a common best practice is to define custom properties on the :root pseudo-class, so that it can be applied globally across your html document: :root { --main-bg-color: brown; } however, this doesn't always have to be the case: you maybe have a good reason for limiting the scope of your custom properties.
... as mentioned earlier, you use the custom property value by specifying your custom property name inside the var() function, in place of a regular property value: element { background-color: var(--main-bg-color); } first steps with custom properties let's start with this simple css that applies the same color to elements of different classes: .one { color: white; background-color: brown; margin: 10px; width: 50px; height: 50px; display: inline-block; } .two { color: white; background-color: black; margin: 10px; width: 150px; height: 70px; display: inline-block; } .three { color: white; background-color: brown; margin: 10px; width: 75px; } .four { color: white; background-color: brown; margin...
...: 10px; width: 100px; } .five { background-color: brown; } we'll apply it to this html: <div> <div class="one">1:</div> <div class="two">2: text <span class="five">5 - more text</span></div> <input class="three"> <textarea class="four">4: lorem ipsum</textarea> </div> ...
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font-family - CSS: Cascading Style Sheets
ilies .serif { font-family: times, times new roman, georgia, serif; } .sansserif { font-family: verdana, arial, helvetica, sans-serif; } .monospace { font-family: lucida console, courier, monospace; } .cursive { font-family: cursive; } .fantasy { font-family: fantasy; } .emoji { font-family: emoji; } .math { font-family: math; } .fangsong { font-family: fangsong; } <div class="serif"> this is an example of a serif font.
... </div> <div class="sansserif"> this is an example of a sans-serif font.
... </div> <div class="monospace"> this is an example of a monospace font.
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font-style - CSS: Cascading Style Sheets
values normal selects a font that is classified as normal within a font-family.
... italic selects a font that is classified as italic.
... if no italic version of the face is available, one classified as oblique is used instead.
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font - CSS: Cascading Style Sheets
</p> <form action="createshorthand()"> <div class="cf"> <div class="setpropcont"> font-style<br/> <input type="radio" id="font-style-none" name="font_style" checked="" value="" onchange="setcss()"> <label for="font-style-none">none</label><br/> <input type="radio" id="font-style-normal" name="font_style" value="normal" onchange="setcss()"> <label for="font-style-normal">normal</label><br/> ...
...<input type="radio" id="font-style-italic" name="font_style" value="italic" onchange="setcss()"> <label for="font-style-italic">italic</label><br/> <input type="radio" id="font-style-oblique" name="font_style" value="oblique" onchange="setcss()"> <label for="font-style-oblique">oblique</label> </div> <div class="setpropcont"> font-variant<br> <input type="radio" id="font-variant-none" name="font_variant" checked="" value=" " onchange="setcss()"> <label for="font-variant-none">none</label><br/> <input type="radio" id="font-variant-normal" name="font_variant" value="normal" onchange="setcss()"> <label for="font-variant-normal">normal</label><br/> <input type="radio" id="font-variant-small-caps" name="font_variant" value=...
..."small-caps" onchange="setcss()"> <label for="font-variant-small-caps">small-caps</label> </div> <div class="setpropcont"> font-weight<br/> <input type="radio" id="font-weight-none" name="font_weight" value="" onchange="setcss()"> <label for="font-weight-none">none</label><br/> <input type="radio" id="font-weight-normal" checked="" name="font_weight" value="400" onchange="setcss()"> <label for="font-weight-normal">normal</label><br/> <input type="radio" id="font-weight-bold" name="font_weight" value="700" onchange="setcss()"> <label for="font-weight-bold">bold</label> </div> <div class="setpropcont"> font-size<br/> <input type="radio" id="font-size-12px" name="font_size" value="12px" onchan...
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scroll-snap-type - CSS: Cascading Style Sheets
examples snapping in different axes html <div class="holster"> <div class="container x mandatory-scroll-snapping" dir="ltr"> <div>x mand.
... ltr</div> <div>2</div> <div>3</div> <div>4</div> <div>5</div> </div> <div class="container x proximity-scroll-snapping" dir="ltr"> <div>x prox.
... ltr</div> <div>2</div> <div>3</div> <div>4</div> <div>5</div> </div> <div class="container y mandatory-scroll-snapping" dir="ltr"> <div>y mand.
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<input type="number"> - HTML: Hypertext Markup Language
<input id="ticketnum" type="number" name="ticketnum" list="defaultnumbers"> <span class="validity"></span> <datalist id="defaultnumbers"> <option value="10045678"> <option value="103421"> <option value="11111111"> <option value="12345678"> <option value="12999922"> </datalist> use of the list attribute with number inputs is not supported in all browsers.
... the following example exhibits all of the above features, as well as using some css to display valid and invalid icons, depending on the input's value: <form> <div> <label for="balloons">number of balloons to order (multiples of 10):</label> <input id="balloons" type="number" name="balloons" step="10" min="0" max="100" required> <span class="validity"></span> </div> <div> <input type="submit"> </div> </form> try submitting the form with different invalid values entered — e.g., no value; a value below 0 or above 100; a value that is not a multiple of 10; or a non-numerical value — and see how the error messages the browser gives you differ with different ones.
... the css applied to this example is as follows: div { margin-bottom: 10px; } input:invalid+span:after { content: '✖'; padding-left: 5px; } input:valid+span:after { content: '✓'; padding-left: 5px; } here we use the :invalid and :valid pseudo classes to display an appropriate invalid or valid icon as generated content on the adjacent <span> element, as a visual indicator of validity.
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Applying SVG effects to HTML content - SVG: Scalable Vector Graphics
applying the svg effect to (x)html is accomplished by assigning the target class defined above to an element, like this: <p class="target" style="background:lime;"> lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
...</p> <p> lorem ipsum dolor sit amet, consectetur adipisicing <b class="target">elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</b> ut enim ad minim veniam.
... <p class="target" style="background:lime;"> lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
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Examples and demos from articles - Archive of obsolete content
in different objects and then to create a constructor for such class of objects in order to standardize and simplify the instantiation of them.
...[article] css pure-css dropdown menu [html] with the :hover pseudo-class you can create complex cascade algorithms.
....[article] pure-css web gallery based on the :hover pseudoclass [zip] you can use the :hover pseudo-class in order to build an image gallery with full-size images shown only when mouse goes over previews.
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How to convert an overlay extension to restartless - Archive of obsolete content
const myaddonid = ...; // just store a constant with your id components.utils.import("resource://gre/modules/addonmanager.jsm"); addonmanager.getaddonbyid(myaddonid,function(addon) { var file = services.io.newuri("resource://myaddon/filename.ext",null,null) .queryinterface(components.interfaces.nsifileurl) .file; var stream = components.classes["@mozilla.org/network/file-input-stream;1"] .createinstance(components.interfaces.nsifileinputstream) .queryinterface(components.interfaces.nsiseekablestream); stream.init(file, 0x01, 0444, 0); // read-only, read by owner/group/others, normal behavior /* do stuff */ }); this bit of code is paraphrased and probably not to be recomme...
... step 3a: option 1: use nsizipreader let zipreader = components.classes["@mozilla.org/libjar/zip-reader;1"] .createinstance(components.interfaces.nsizipreader); zipreader.open(addondata.installpath); ...
...branch : services.prefs; return branch.getcomplexvalue(prefname, components.interfaces.nsisupportsstring).data; } function setucharpref(prefname,text,branch) // unicode setcharpref { var string = components.classes["@mozilla.org/supports-string;1"] .createinstance(components.interfaces.nsisupportsstring); string.data = text; branch = branch ?
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Images, Tables, and Mysterious Gaps - Archive of obsolete content
almost no matter when you started creating web pages, odds are pretty high you have one or more designs based on the classic "convoluted tables and lots of images" paradigm.
... one potential solution is to add a class to any image that needs to be block-level and then write the rule to match.
... td img.decoration {display: block;} <td><img src="reddot.gif" class="decoration"></td> depending on the design, though, that could lead to a lot of classes added for this one simple effect.
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Embedding Mozilla in a Java Application using JavaXPCOM - Archive of obsolete content
prerequisites java 1.4.2 or newer xulrunner 1.8.0.1 or newer embedding in order to embed mozilla in your java application, you will need to add the library mozillainterfaces.jar (located in xulrunner/sdk/lib folder) to your classpath.
... to start embedding, we use the methods provided by the mozilla singleton class.
...th = mozilla.getgrepathwithproperties(range, null); locationprovider locprovider = new locationprovider(grepath); mozilla.initembedding(grepath, grepath, locprovider); } catch (filenotfoundexception e) { // this exception is thrown if gregrepathwithproperties cannot find a gre } catch (xpcomexception e) { // this exception is thrown if initembedding failed } locationprovider is a class provided by the java application.
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description - Archive of obsolete content
attributes crop, disabled, tabindex value properties accessibletype, crop, disabled, tabindex, value style classes header, indent, monospace, plain, small-margin examples this is a long section of text that will word wrap when displayed <description> this is a long section of text that will word wrap when displayed.
... methods inherited methods addeventlistener(), appendchild(), blur, click, clonenode(), comparedocumentposition, dispatchevent(), docommand, focus, getattribute(), getattributenode(), getattributenodens(), getattributens(), getboundingclientrect(), getclientrects(), getelementsbyattribute, getelementsbyattributens, getelementsbyclassname(), getelementsbytagname(), getelementsbytagnamens(), getfeature, getuserdata, hasattribute(), hasattributens(), hasattributes(), haschildnodes(), insertbefore(), isdefaultnamespace(), isequalnode, issamenode, issupported(), lookupnamespaceuri, lookupprefix, normalize(), queryselector(), queryselectorall(), removeattribute(), removeattributenode(), removeattributens(), removechild(), removeeve...
...ntlistener(), replacechild(), setattribute(), setattributenode(), setattributenodens(), setattributens(), setuserdata style classes header a class used for headings.
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treecol - Archive of obsolete content
attributes crop, cycler, dragging, editable, fixed, hidden, hideheader, ignoreincolumnpicker, label, primary, sort, sortactive, sortdirection, src, type, width properties accessibletype style classes treecol-image examples this example shows a checkbox in the first column, requires the style below.
...the class treecol-image must be used on the treecol element for the image to appear.
... inherited properties align, , allowevents, , boxobject, builder, , , , classname, , , , , collapsed, contextmenu, controllers, database, datasources, dir, , , flex, height, hidden, id, , , left, , maxheight, maxwidth, menu, minheight, minwidth, , , , , , , observes, ordinal, orient, , pack, , persist, , , , ref, resource, , , , , statustext, style, ,, tooltip, tooltiptext, top, width methods inherited methods addeventlistener(), appendchild(), blur, click, clone...
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Gecko Compatibility Handbook - Archive of obsolete content
internet explorer incorrectly treats id's and class names as case insensitive while gecko treats them correctly as case sensitive.
... inconsistent case between the css defining the style for html id's and classes results in gecko browsers not applying the styles to id's or class names that differ in case.
...use consistent case when writing html id and class name attributes and css styles for those ids and classes.
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JSObject - Archive of obsolete content
summary the public final class netscape.javascript.jsobject extends object.
... java.lang.object | +----netscape.javascript.jsobject description javascript objects are wrapped in an instance of the class netscape.javascript.jsobject and passed to java.
...the jsobject class provides a way to invoke javascript methods and examine javascript properties.
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JavaArray - Archive of obsolete content
in addition, you can create a javaarray with an arbitrary data type using the newinstance method of the array class: public static object newinstance(class componenttype, int length) throws negativearraysizeexception description the javaarray object is an instance of a java array that is created in or passed to javascript.
... in javascript 1.4 and later, the componenttype parameter is either a javaclass object representing the type of the array or class object, such as one returned by java.lang.class.forname.
... in javascript 1.3 and earlier, componenttype must be a class object.
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CSS values and units - Learn web development
the following are all classed as numeric: data type description <integer> an <integer> is a whole number such as 1024 or -55.
...i've set a font size of 1em on the containing <div>, which has a class of .wrapper.
...the only difference is that the first has a class of ems and the second a class of rems.
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Positioning - Learn web development
static positioning static positioning is the default that every element gets — it just means "put the element into its normal position in the document layout flow — nothing special to see here." to demonstrate this, and get your example set up for future sections, first add a class of positioned to the second <p> in the html: <p class="positioned"> ...
...my adjacent block level elements sit on new lines below me.</p> <p class="positioned">by default we span 100% of the width of our parent element, and we are as tall as our child content.
...my adjacent block level elements sit on new lines below me.</p> <p class="positioned">by default we span 100% of the width of our parent element, and we are as tall as our child content.
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How CSS is structured - Learn web development
however, there is also a class that sets the text of selected elements to red.
... .special { color: red; } p { color: blue; } suppose that in our html document, we have a paragraph with a class of special.
... <p class="special">what color am i?</p> the css language has rules to control which selector is stronger in the event of a conflict.
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Routing in Ember - Learn web development
a deeper understanding of modern javascript features (such as classes, modules, etc), will be extremely beneficial, as ember makes heavy use of them.
...it contains the following contents: import emberrouter from '@ember/routing/router'; import config from './config/environment'; export default class router extends emberrouter { location = config.locationtype; rooturl = config.rooturl; } router.map(function() { this.route('completed'); this.route('active'); }); the highlighted lines were added when the 2nd and 3rd commands above were run.
... the index route model first of all, update todomvc/app/routes/index.js so it looks as follows: import route from '@ember/routing/route'; import { inject as service } from '@ember/service'; export default class indexroute extends route { @service('todo-data') todos; model() { let todos = this.todos; return { get alltodos() { return todos.all; } } } } we can now update the todomvc/app/templates/index.hbs file so that when it includes the <todolist /> component, it does so explicitly with the available model, calling its alltodos() getter to make sure all of the to...
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Creating Sandboxed HTTP Connections
to create an nsiuri from an string, we use the newuri method of nsiioservice: // the io service var ioservice = components.classes["@mozilla.org/network/io-service;1"] .getservice(components.interfaces.nsiioservice); // create an nsiuri var uri = ioservice.newuri(myurlstring, null, null); once the nsiuri has been created, a nsichannel can be generated from it using nsiioservice's newchannelfromuri method: // get a channel for that nsiuri var channel = ioservice.newchannelfromuri(uri); to init...
...below is an example: // global channel var gchannel; // init the channel // the io service var ioservice = components.classes["@mozilla.org/network/io-service;1"] .getservice(components.interfaces.nsiioservice); // create an nsiuri var uri = ioservice.newuri(myurlstring, null, null); // get a channel for that nsiuri gchannel = ioservice.newchannelfromuri(uri); // get an listener var listener = new streamlistener(callbackfunc); gchannel.notificationcallbacks = listener; gchannel.asyncopen(...
...listener, null); function streamlistener(acallbackfunc) { this.mcallbackfunc = acallbackfunc; } streamlistener.prototype = { mdata: "", // nsistreamlistener onstartrequest: function (arequest, acontext) { this.mdata = ""; }, ondataavailable: function (arequest, acontext, astream, asourceoffset, alength) { var scriptableinputstream = components.classes["@mozilla.org/scriptableinputstream;1"] .createinstance(components.interfaces.nsiscriptableinputstream); scriptableinputstream.init(astream); this.mdata += scriptableinputstream.read(alength); }, onstoprequest: function (arequest, acontext, astatus) { if (components.issuccesscode(astatus)) { // request was successfull this.mcallbackfunc(this.mdata); } else { // request f...
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The Firefox codebase: CSS Guidelines
it's generally better to set a class and then specify the styles in css.
... classlist is generally better than classname.
... there's less chance of overwriting an existing class.
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NSS API Guidelines
secport_decl_ptr_class(classname, size) - declare a class of pointers (labelled classname) this object file needs to check.
... this class is local only to this object file.
... size is the expected number of pointers of type classname.
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Tutorial: Embedding Rhino
the arguments evaluating a script printing the result exiting the context expose java apis using java apis implementing interfaces adding java objects using javascript objects from java using javascript variables calling javascript functions javascript host objects defining host objects counter example counter's constructors class name dynamic properties defining javascript "methods" adding counter to runscript runscript: a simple embedding about the simplest embedding of rhino possible is the runscript example.
... here's an example use of runscript from a shell command line: $ java runscript "math.cos(math.pi)" -1 $ java runscript "function f(x){return x+1} f(7)" 8 note that you'll have to have both the rhino classes and the runscript example class file in the classpath.
... it's easy to try out new host object classes in the shell using its built-in defineclass function.
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The JavaScript Runtime
when scripts are compiled in interpretive mode, an internal representation of the compiled form is created and stored rather than generating a java class.
...each javascript script or function is compiled to a separate class.
... compilation of javascript source to class files is supported.
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Rhino serialization
rhino serialization apis two new classes, scriptableoutputstream and scriptableinputstream, were introduced to handle serialization of rhino classes.
... these classes extend objectoutputstream and objectinputstream respectively.
...reading the serialized object back into memory is similarly simple: fileinputstream fis = new fileinputstream(filename); objectinputstream in = new scriptableinputstream(fis, scope); object deserialized = in.readobject(); in.close(); again, we need the scope to create our serialization stream class.
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Garbage collection
cell is the base class for all classes that are allocated by the gc, e.g., jsobject.
... allocation kind cells are classified by allocation kind.
... the class heap<t> is provided to make it easy to invoke write barriers.
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JSPropertyOp
they are also the types of the jsclass.addproperty, getproperty, and setproperty callbacks, which are called during object property accesses.
...a jspropertyop may be installed on an individual property as a getter or setter; or it may be installed on a jsclass to hook property gets, sets, or adds.
... jsclass hooks jsclass offers following hooks: jspropertyop jsclass.addproperty is called just after a new property is added to an object.
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JSReserveSlotsOp
jsreserveslotsop is the type of the jsclass.reserveslots.
...a class cannot freely use a reserveslots hook to reserve a different number of slots for each object.
... rather, within a jsruntime, every call to the same reserveslots hook must return the same value (excepting a few internal classes such as function, call, and block).
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JS_NewGlobalObject
syntax jsobject * js_newglobalobject(jscontext *cx, const jsclass *clasp, jsprincipals *principals, js::onnewglobalhookoption hookoption, const js::compartmentoptions &options = js::compartmentoptions()); name type description cx jscontext * the context in which to create the new global object.
... clasp jsclass * the class to use for the new global object.
... clasp->flags must have the jsclass_global_flags bits set.
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SpiderMonkey 1.8.7
jsextendedclass jsextendedclass has been removed from the api entirely.
...global objects must also have the jsclass_global_flags flag set.
... merely setting jsclass_is_global is insufficient.
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SpiderMonkey 1.8.8
the jsresolve_classname and jsresolve_with resolve flags (passed to jsclass.resolve when jsclass.flags contains jsclass_new_resolve) have been removed.
... deleted apis js_get_class (use js_getclass instead) js_constructobject and js_constructobjectwitharguments (preferably use js_new instead, or use this reimplementation as a short-term fix) js_newcompartmentandglobalobject (use js_newglobalobject instead.) jspd_argument jsval_is_object() (use !jsval_is_primitive(v) to detect objects and jsval_is_null(v) to detect null).
... js_isscriptframe jsclass_new_resolve_gets_start flag js_newnumbervalue api changes break out and discuss all api changes here...
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SpiderMonkey 17
the jsresolve_classname and jsresolve_with resolve flags (passed to jsclass.resolve when jsclass.flags contains jsclass_new_resolve) have been removed.
... deleted apis js_get_class (use js_getclass instead) js_constructobject and js_constructobjectwitharguments (preferably use js_new instead, or use this reimplementation as a short-term fix) js_newcompartmentandglobalobject (use js_newglobalobject instead.) jspd_argument jsval_is_object() (use !jsval_is_primitive(v) to detect objects and jsval_is_null(v) to detect null).
... js_isscriptframe jsclass_new_resolve_gets_start flag js_newnumbervalue js_finalizestub js_clearnewbornroots jsclass_mark_is_trace flag js_setscriptstackquota api changes break out and discuss all api changes here...
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Finishing the Component
once you have these interface and header files, you can modify the weblock class to implement the nsicontentpolicy interface.
... the weblock class will then support four interfaces: nsisupports, nsiobserver, nsicontentpolicy, and iweblock.
... once you have made sure that your component builds with the new header file, you must derive the weblock class from the interface nsicontentpolicy, which you can do by simply adding a public declaration when defining the class.
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nsACString
« xpcom api reference summary the nsacstring abstract class represents a character string composed of single-byte storage units.
... this class is typically used to represent ascii or utf-8 character arrays.
... #include "nsstringapi.h" class nsacstring { ...
...And 4 more matches

nsAString
« xpcom api reference summary the nsastring abstract class represents a character string composed of double-byte storage units.
... this class is typically used to represent unicode character arrays.
... #include "nsstringapi.h" class nsastring { ...
...And 4 more matches

nsIServiceManager
inherits from: nsisupports last changed in gecko 1.0 method overview void getservice(in nscidref aclass, in nsiidref aiid, [iid_is(aiid),retval] out nsqiresult result); void getservicebycontractid(in string acontractid, in nsiidref aiid, [iid_is(aiid),retval] out nsqiresult result); boolean isserviceinstantiated(in nscidref aclass, in nsiidref aiid); boolean isserviceinstantiatedbycontractid(in string acontractid, in nsiidref aiid); methods getservice() this method returns a reference to a particular xpcom serv...
...ice given the classid of the service.
... void getservice( in nscidref aclass, in nsiidref aiid, [iid_is(aiid),retval] out nsqiresult result ); parameters aclass the classid of the service that is being requested.
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Working with windows in chrome code
var ww = components.classes["@mozilla.org/embedcomp/window-watcher;1"] .getservice(components.interfaces.nsiwindowwatcher); var win = ww.openwindow(null, "chrome://myextension/content/about.xul", "aboutmyextension", "chrome,centerscreen", null); window object note the win variable in the above section, which is assigned the return value of window.open.
...you could check the location property of the opener and use opener.opener in case it's the extension manager window, but a better way is to use nsiwindowmediator: var wm = components.classes["@mozilla.org/appshell/window-mediator;1"] .getservice(components.interfaces.nsiwindowmediator); var browserwindow = wm.getmostrecentwindow("navigator:browser"); // read values from |browserwindow| you might be tempted to use a similar technique to apply the changes the user made in the options dialog, but a better way to do that is to use preferences observers.
...here is helper function that will package the data correctly and pass it to the newly opened window: function opendialog(parentwindow, url, windowname, features) { var array = components.classes["@mozilla.org/array;1"] .createinstance(components.interfaces.nsimutablearray); for (var i = 4; i < arguments.length; i++) { var variant = components.classes["@mozilla.org/variant;1"] .createinstance(components.interfaces.nsiwritablevariant); variant.setfromvariant(arguments[i]); array.appendelement(variant, f...
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Using IndexedDB - Web APIs
full indexeddb example html content <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script> <h1>indexeddb demo: storing blobs, e-publication example</h1> <div class="note"> <p> works and tested with: </p> <div id="compat"> </div> </div> <div id="msg"> </div> <form id="register-form"> <table> <tbody> <tr> <td> <label for="pub-title" class="required"> title: </label> </td> <td> <input type="text...
..." id="pub-title" name="pub-title" /> </td> </tr> <tr> <td> <label for="pub-biblioid" class="required"> bibliographic id:<br/> <span class="note">(isbn, issn, etc.)</span> </label> </td> <td> <input type="text" id="pub-biblioid" name="pub-biblioid"/> </td> </tr> <tr> <td> <label for="pub-year"> year: </label> </td> <td> <input type="number" id="pub-year" name="pub-year" /> </td> </tr> </tbody> <tbody> <tr> <td> <label for="pub-file"> file image...
...: </label> </td> <td> <input type="file" id="pub-file"/> </td> </tr> <tr> <td> <label for="pub-file-url"> online-file image url:<br/> <span class="note">(same origin url)</span> </label> </td> <td> <input type="text" id="pub-file-url" name="pub-file-url"/> </td> </tr> </tbody> </table> <div class="button-pane"> <input type="button" id="add-button" value="add publication" /> <input type="reset" id="register-form-reset"/> </div> </form> <form id="delete-form"> <table> <tbody> <tr> <td> ...
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Timing element visibility with the Intersection Observer API - Web APIs
we'll be using css grid to style and lay out the site, so we can be pretty straightforward here: <div class="wrapper"> <header> <h1>a fake blog</h1> <h2>showing intersection observer in action!</h2> </header> <aside> <nav> <ul> <li><a href="#link1">a link</a></li> <li><a href="#link2">another link</a></li> <li><a href="#link3">one more link</a></li> </ul> </nav> </aside> <main> </main> </div> this is the framework for the entire site.
...then the "wrapper" class is defined; it wraps the entire blog, including the header, sidebar, and body content (articles and ads).
... function loadrandomad(replacebox) { let ads = [ { bgcolor: "#cec", title: "eat green beans", body: "make your mother proud—they're good for you!" }, { bgcolor: "aquamarine", title: "millionsoffreebooks.whatever", body: "read classic literature online free!" }, { bgcolor: "lightgrey", title: "3.14 shades of gray: a novel", body: "love really does make the world go round..." }, { bgcolor: "#fee", title: "flexbox florist", body: "when life's layout gets complicated, send flowers." } ]; let adbox, title, body, timerelem; let ad = ads[math.floor(math.random()*ads.le...
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Web Video Text Tracks Format (WebVTT) - Web APIs
class tag (<c></c>) style the contained text using a css class.
... example 14 - class tag <c.classname>text</c> italics tag (<i></i>) italicize the contained text.
... example 19 - ruby text tag <ruby>www<rt>world wide web</rt>oui<rt>yes</rt></ruby> voice tag (<v></v>) similar to class tag, also used to style the contained text using css.
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:checked - CSS: Cascading Style Sheets
the :checked css pseudo-class selector represents any radio (<input type="radio">), checkbox (<input type="checkbox">), or option (<option> in a <select>) element that is checked or toggled to an on state.
... note: because browsers often treat <option>s as replaced elements, the extent to which they can be styled with the :checked pseudo-class varies from browser to browser.
...* radio element, when checked */ input[type="radio"]:checked { box-shadow: 0 0 0 3px orange; } /* checkbox element, when checked */ input[type="checkbox"]:checked { box-shadow: 0 0 0 3px hotpink; } /* option elements, when selected */ option:checked { box-shadow: 0 0 0 3px lime; color: red; } result toggling elements with a hidden checkbox this example utilizes the :checked pseudo-class to let the user toggle content based on the state of a checkbox, all without using javascript.
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:empty - CSS: Cascading Style Sheets
the :empty css pseudo-class represents any element that has no children.
... note: in selectors level 4 the :empty pseudo-class was changed to act like :-moz-only-whitespace, but no browser currently supports this yet.
... /* selects any <div> that contains no content */ div:empty { background: lime; } syntax :empty examples html <div class="box"><!-- i will be lime.
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:host-context() - CSS: Cascading Style Sheets
the :host-context() css pseudo-class function selects the shadow host of the shadow dom containing the css it is used inside (so you can select a custom element from inside its shadow dom) — but only if the selector given as the function's parameter matches the shadow host's ancestor(s) in the place it sits inside the dom hierarchy.
... in other words, this allows a custom element, or anything within that custom element's shadow dom, to apply different styles based on its position within the outer dom or classes/attributes applied to ancestor elements.
... another typical use would be to allow inner elements to react to classes or attributes on any anscestor elements - for example, applying a different text color when a .dark-theme class is applied to <body>.
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:nth-last-child() - CSS: Cascading Style Sheets
the :nth-last-child() css pseudo-class matches elements based on their position among a group of siblings, counting from the end.
... /* selects every fourth element among any group of siblings, counting backwards from the last one */ :nth-last-child(4n) { color: lime; } note: this pseudo-class is essentially the same as :nth-child, except it counts items backwards from the end, not forwards from the beginning.
... syntax the nth-last-child pseudo-class is specified with a single argument, which represents the pattern for matching elements, counting from the end.
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:visited - CSS: Cascading Style Sheets
the :visited css pseudo-class represents links that the user has already visited.
... /* selects any <a> that has been visited */ a:visited { color: green; } styles defined by the :visited pseudo-class will be overridden by any subsequent link-related pseudo-class (:link, :hover, or :active) that has at least equal specificity.
... styling restrictions for privacy reasons, browsers strictly limit which styles you can apply using this pseudo-class, and how they can be used: allowable css properties are color, background-color, border-color, border-bottom-color, border-left-color, border-right-color, border-top-color, column-rule-color, outline-color, text-decoration-color, and text-emphasis-color.
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CSS Grid Layout and Progressive Enhancement - CSS: Cascading Style Sheets
radius: 5px; background-color: #fff4e6; max-width: 400px; display: grid; grid-template-columns: 1fr 2fr; grid-template-areas: "img content"; margin-bottom: 1em; } .media::after { content: ""; display: block; clear: both; } .media .image { float: left; width: 150px; margin-right: 20px; } .media .text { padding: 10px; align-self: end; } <div class="media"> <div class="image"><img src="https://udn.realityripple.com/samples/89/f993f273dd.png" alt="placeholder"></div> <div class="text">this is a media object example.
... #fff4e6; max-width: 600px; margin: 0 auto; } .wrapper li { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } .wrapper ul { overflow: hidden; margin: 0 -10px; padding: 0; list-style: none; } .wrapper li { float: left; width: calc(33.333333% - 20px); margin: 0 10px 20px 10px; } <div class="wrapper"> <ul> <li class="card"><h2>one</h2> <p>we can use css grid to overwrite older methods.</p> </li> <li class="card"><h2>two</h2> <p>we can use css grid to overwrite older methods.</p> </li> <li class="card"><h2>three</h2> <p>we can use css grid to overwrite older methods.</p> </li> <li class="c...
...ard"><h2>four</h2> <p>we can use css grid to overwrite older methods.</p> </li> <li class="card"><h2>five</h2> <p>we can use css grid to overwrite older methods.</p> </li> <li class="card"><h2>six</h2> <p>we can use css grid to overwrite older methods.</p> </li> </ul> </div> the example demonstrates the typical problem that we have with floated layouts: if additional content is added to any one card, the layout breaks.
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Layout using named grid lines - CSS: Cascading Style Sheets
.box1 { grid-column-start: main-start; grid-row-start: main-start; grid-row-end: main-end; } .box2 { grid-column-start: content-end; grid-row-start: main-start; grid-row-end: content-end; } .box3 { grid-column-start: content-start; grid-row-start: main-start; } .box4 { grid-column-start: content-start; grid-column-end: main-end; grid-row-start: content-end; } <div class="wrapper"> <div class="box1">one</div> <div class="box2">two</div> <div class="box3">three</div> <div class="box4">four</div> </div> everything else about line-based placement still works in the same way and you can mix named lines and line numbers.
... .wrapper { display: grid; grid-template-columns: [main-start] 1fr [content-start] 1fr [content-end] 1fr [main-end]; grid-template-rows: [main-start] 100px [content-start] 100px [content-end] 100px [main-end]; } .thing { grid-area: content; } <div class="wrapper"> <div class="thing">i am placed in an area named content.</div> </div> we don’t need to define where our areas are with grid-template-areas as our named lines have created an area for us.
... in this example i have added an extra div with a class of overlay.
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overflow-wrap - CSS: Cascading Style Sheets
html <p>they say the fishing is excellent at lake <em class="normal">chargoggagoggmanchauggagoggchaubunagungamaugg</em>, though i've never been there myself.
... (<code>normal</code>)</p> <p>they say the fishing is excellent at lake <em class="ow-anywhere">chargoggagoggmanchauggagoggchaubunagungamaugg</em>, though i've never been there myself.
... (<code>overflow-wrap: anywhere</code>)</p> <p>they say the fishing is excellent at lake <em class="ow-break-word">chargoggagoggmanchauggagoggchaubunagungamaugg</em>, though i've never been there myself.
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perspective-origin - CSS: Cascading Style Sheets
html <section> <figure> <figcaption><code>perspective-origin: top left;</code></figcaption> <div class="container"> <div class="cube potl"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div class="face bottom">6</div> </div> </div> </figure> <figure> <figcaption><code>perspective-origin: top;</code></figcaption> <div class="container...
..."> <div class="cube potm"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div class="face bottom">6</div> </div> </div> </figure> <figure> <figcaption><code>perspective-origin: top right;</code></figcaption> <div class="container"> <div class="cube potr"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div class="face bottom">6</div> </div> </div> </figure> <figure> <figcaption><code>perspective-origin: left;</code></figcaption> <div class="container"> <div class="cube poml">...
... <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div class="face bottom">6</div> </div> </div> </figure> <figure> <figcaption><code>perspective-origin: 50% 50%;</code></figcaption> <div class="container"> <div class="cube pomm"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div class="face bottom">6</div> </div> </div> </figure> <figure> <figcaption><code>perspective-origin: right;</code></figcaption> <div class="container"> <div class="cube pomr"> <div class="face front">...
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Applying color to HTML elements using CSS - HTML: Hypertext Markup Language
let's take a look at an example, starting by looking at the results we're trying to achieve: html the html responsible for creating the above example is shown here: <div class="wrapper"> <div class="box boxleft"> <p> this is the first box.
... </p> </div> <div class="box boxright"> <p> this is the second box.
... .wrapper { width: 620px; height: 110px; margin: 0; padding: 10px; border: 6px solid mediumturquoise; } the .wrapper class is used to assign styles to the <div> that encloses all of our other content.
...And 4 more matches

HTML attribute: required - HTML: Hypertext Markup Language
if present on any of these input types and elements, the :required pseudo class will match.
... if the attribute is not included, the :optional pseudo class will match.
... when an input has the required attribute, the :required pseudo-class also applies to it.
...And 4 more matches

super - JavaScript
the super.prop and super[expr] expressions are valid in any method definition in both classes and object literals.
... examples using super in classes this code snippet is taken from the classes sample (live demo).
... class rectangle { constructor(height, width) { this.name = 'rectangle'; this.height = height; this.width = width; } sayname() { console.log('hi, i am a ', this.name + '.'); } get area() { return this.height * this.width; } set area(value) { this._area = value; } } class square extends rectangle { constructor(length) { this.height; // referenceerror, super needs to be called first!
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Contributor's Guide - Archive of obsolete content
classes and inheritance a class is a blueprint from which individual objects are created.
... these individual objects are the instances of the class.
... each class defines one or more members, which are initialized to a given value when the class is instantiated.
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Miscellaneous - Archive of obsolete content
these properties can be accessed from javascript in the following manner: var common = { _bundle: components.classes["@mozilla.org/intl/stringbundle;1"] .getservice(components.interfaces.nsistringbundleservice) .createbundle("chrome://myext/locale/myext.properties"), getlocalizedmessage: function(msg) { return this._bundle.getstringfromname(msg); } }; alert(common.getlocalizedmessage("invalid.url")) another similar alternative (using both getstringf...
...romname and formatstringfromname), is: var fcbundle = components.classes["@mozilla.org/intl/stringbundle;1"] .getservice(components.interfaces.nsistringbundleservice) .createbundle("chrome://myext/locale/myext.properties"); function getstr(msg, args){ //get localised message if (args){ args = array.prototype.slice.call(arguments, 1); return fcbundle.formatstringfromname(msg,args,args.length); } else { return fcbundle.getstringfromname(msg); } } /* usage */ alert(getstr("invalid.url", "http://bad/url/", "3")); //for message with parameters alert(getstr("invalid.url")); //for message without parameters getting postdata of a webpage first, you need to get the browser you want, and its historysession.
... var ci = components.interfaces; var cc = components.classes; //assume you can not get the main window object directly, if you can, just use it var wm = cc["@mozilla.org/appshell/window-mediator;1"].getservice(ci.nsiwindowmediator); var mainwindow = wm.getmostrecentwindow("navigator:browser"); //get sessionhistory from the current selected tab var history = mainwindow.gbrowser.selectedbrowser.webnavigation.sessionhistory; and then get the page you want, and it's postdata.
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StringView - Archive of obsolete content
*/ ntranscrtype &= 7; break typeswitch; case "object": classswitch: switch (vinput.constructor) { case stringview: /* the input argument is a stringview: a new buffer will be created.
...it can be: another stringview a string a number an arraybuffer a typed array of uint8array, uint16array, or uint32array subclass any other kind of ordered object (like arrays, collections, etc.) if it is a number it will become the length of the new stringview; otherwise it will become its content.
... input class stringview.buffer stringview.rawdata stringview.bufferview stringview a new arraybuffer will be created.
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Style System Overview - Archive of obsolete content
1 matching rule: use value 2+ matching rules: cascade decides which wins: sort by origin (ua, user, author) & weight (!important), then specificity of selector, then order example document source <doc> <title>a few quotes</title> <para class="emph"> franklin said that <quote>"a penny saved is a penny earned."</quote> </para> <para> fdr said <quote>"we have nothing to fear but <span class="emph">fear itself.</span>"</quote> </para> </doc> example document tree doc ↙ ↓ ↘ title para class="emph" para ↓ ...
... ↓ quote quote ↓ span class="emph" example stylesheet doc { display: block; text-indent: 1em; } title { display: block; font-size: 3em; } para { display: block; } [class="emph"] { font-style: italic; } css style rule representation each declaration block is represented by an nscssdeclaration an cssstyleruleimpl contains each selector associated with that declaration, and the declaration, and is the most important implementation of nsistylerule.
... cssruleprocessor one cssruleprocessor per origin (ua, user, author) css rule processor sorts all the rules in cascade order, and then puts them in rulehash, which remembers order and then hashes by first of id, class, tag, namespace, or unhashed.
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New Skin Notes - Archive of obsolete content
--dria css classes for feature and subfeature boxes, including required graphics.
...--callek add "what not to do" css class to stylesheet, as discussed on talk:core javascript 1.5 reference.
... what's the class called?
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Installer Script - Archive of obsolete content
registerchrome(skin | delayed_chrome, getfolder(cf,"classic.jar"),"skin/classic/communicator/"); 54.
... registerchrome(skin | delayed_chrome, getfolder(cf,"classic.jar"),"skin/classic/editor/"); 55.
... registerchrome(skin | delayed_chrome, getfolder(cf,"classic.jar"),"skin/classic/global/"); 56.
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MenuItems - Archive of obsolete content
in addition to the image, a special class "menuitem-iconic" must be used on the menuitem to indicate that an icon is expected.
... <menuitem id="add-bookmark" class="menuitem-iconic" label="add bookmark" image="addbookmark.png"/> as the image appears on a menu item, you will want to ensure you use a fairly small image.
... #add-bookmark { list-style-image: url('addbookmark.png'); } this technique can also be used to apply an image for the menu element, except you would want to use the "menu-iconic:" class instead.
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Creating toolbar buttons (Customize Toolbar Window) - Archive of obsolete content
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).
... class="toolbarbutton-1" makes the toolbar button appear correctly in icons and text mode; it also adjusts padding.
... onclick="checkformiddleclick(this, event)" you can also handle middle-click and right-click using onclick handler and check event.button in it like this: <toolbarpalette id="browsertoolbarpalette"> <toolbarbutton id="myextension-button" class="toolbarbutton-1" label="&toolbarbutton.label;" tooltiptext="&toolbarbutton.tooltip;" onclick="myextension.onclick(event);"/> </toolbarpalette> onclick: function(event) { switch(event.button) { case 0: // left click break; case 1: // middle click break; case 2: // right click break; } } to add more buttons, put more <toolbarbutton> elements inside the <toolbarpalette> element.
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SeaMonkey - making custom toolbar (SM ver. 1.x) - Archive of obsolete content
it is one very long line ending in path—make sure that you get all of it: components.classes["@mozilla.org/file/directory_service;1"].getservice( components.interfaces.nsiproperties).get("achrom", components.interfaces.nsifile).path in the javascript console window, paste the code in the field near the top.
... tooltiptext="my custom menu item" oncommand="custombutton[1]()" /> </menupopup> </menu> </menubar> <!-- calendar --> <toolbar id="calendar-bar"> <toolbarbutton id="custom-button-1" position="10"/> </toolbar> <!-- button details --> <toolbarbutton id="custom-button-1" label="custom" tooltiptext="my custom toolbar button" oncommand="custombutton[1]()" class="toolbarbutton-1 custombutton" /> </overlay> optionally customize the file by changing the label, accesskey and tooltiptext attributes.
...stombutton:hover {-moz-image-region: rect( 0px 83px 39px 42px);} #nav-bar .custombutton:active {-moz-image-region: rect( 0px 125px 39px 84px);} .custombutton {-moz-image-region: rect(39px 49px 72px 0px);} .custombutton:hover {-moz-image-region: rect(39px 98px 72px 49px);} .custombutton:active {-moz-image-region: rect(39px 147px 72px 98px);} /* common style for all custom buttons - classic */ .custombutton {-moz-image-region: rect( 0px 145px 20px 126px);} .custombutton:hover {-moz-image-region: rect( 0px 164px 20px 145px);} .custombutton:active {-moz-image-region: rect( 0px 183px 20px 164px);} remove one of the common style sections, leaving the section for the theme that you use in seamonkey.
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Using nsIXULAppInfo - Archive of obsolete content
getting nsixulappinfo to get a component implementing nsixulappinfo use this code: var appinfo = components.classes["@mozilla.org/xre/app-info;1"] .getservice(components.interfaces.nsixulappinfo); (for explanation see this creating xpcom article.) getting application information after you obtained the app info component, you can read its properties to get the application's id, human-readable name, version, platform version, etc.
... const firefox_id = "{ec8030f7-c20a-464f-9b0e-13a3a9e97384}"; const thunderbird_id = "{3550f703-e582-4d05-9a08-453d09bdfdc6}"; const seamonkey_id = "{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}"; var appinfo = components.classes["@mozilla.org/xre/app-info;1"] .getservice(components.interfaces.nsixulappinfo); if(appinfo.id == firefox_id) { // running under firefox } else if(appinfo.id == thunderbird_id) { // running under thunderbird } else if(appinfo.id == seamonkey_id) { // running under seamonkey } else { // another app } note: you could also use nsixulappinfo.name, which is a human-...
... example 1: checking firefox version // assuming we're running under firefox var appinfo = components.classes["@mozilla.org/xre/app-info;1"] .getservice(components.interfaces.nsixulappinfo); var versionchecker = components.classes["@mozilla.org/xpcom/version-comparator;1"] .getservice(components.interfaces.nsiversioncomparator); if(versionchecker.compare(appinfo.version, "1.5") >= 0) { // running under firefox 1.5 or later } see nsiversioncompa...
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listitem - Archive of obsolete content
by default it contains a single listcell element of type and class appropriate to that of the listitem.
... attributes accesskey, checked, command, crop, current, disabled, image, label, preference, selected, tabindex, type, value properties accesskey, accessible, checked, control, crop, current, disabled, image, label, selected, tabindex, value style classes listitem-iconic examples <listbox id="thelist"> <listitem label="ruby"/> <listitem label="emerald"/> <listitem label="sapphire" selected="true"/> <listitem label="diamond"/> </listbox> attributes accesskey type: character this should be set to a character that is used as a shortcut key.
... methods inherited methods addeventlistener(), appendchild(), blur, click, clonenode(), comparedocumentposition, dispatchevent(), docommand, focus, getattribute(), getattributenode(), getattributenodens(), getattributens(), getboundingclientrect(), getclientrects(), getelementsbyattribute, getelementsbyattributens, getelementsbyclassname(), getelementsbytagname(), getelementsbytagnamens(), getfeature, getuserdata, hasattribute(), hasattributens(), hasattributes(), haschildnodes(), insertbefore(), isdefaultnamespace(), isequalnode, issamenode, issupported(), lookupnamespaceuri, lookupprefix, normalize(), queryselector(), queryselectorall(), removeattribute(), removeattributenode(), removeattributens(), removechild(), removeeve...
...And 3 more matches

menuitem - Archive of obsolete content
attributes acceltext, accesskey, allowevents, autocheck, checked, closemenu, command, crop, description, disabled, image, key, label, name, selected, tabindex, type, validate, value properties accessibletype, accesskey, command, control, crop, disabled, image, label, labelelement, parentcontainer, selected, tabindex, value style classes menuitem-iconic, menuitem-non-iconic examples <menulist> <menupopup> <menuitem label="option 1" value="1"/> <menuitem label="option 2" value="2"/> <menuitem label="option 3" value="3"/> <menuitem label="option 4" value="4"/> </menupopup> </menulist> attributes acceltext type: string text that appears beside the menu label to indicate the shor...
... note: the menuitem must have a class of menuitem-iconic for the image to appear.
... inherited properties align, , allowevents, , boxobject, builder, , , , classname, , , , , collapsed, contextmenu, controllers, database, datasources, dir, , , flex, height, hidden, id, , , left, , maxheight, maxwidth, menu, minheight, minwidth, , , , , , , observes, ordinal, orient, , pack, , persist, , , , ref, resource, , , , , statustext, style, ,, tooltip, tooltiptext, top, width methods inherited methods addeventlistener(), appendchild(), blur, click, clone...
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splitter - Archive of obsolete content
attributes collapse, resizeafter, resizebefore, state, substate style classes tree-splitter examples <!-- this bar has some styling associated with it.
... properties inherited properties align, , allowevents, , boxobject, builder, , , , classname, , , , , collapsed, contextmenu, controllers, database, datasources, dir, , , flex, height, hidden, id, , , left, , maxheight, maxwidth, menu, minheight, minwidth, , , , , , , observes, ordinal, orient, , pack, , persist, , , , ref, resource, , , , , statustext, style, ,, tooltip, tooltiptext, top, width methods inherited methods addeventlistener(), appendchild(), blur, click, clone...
...node(), comparedocumentposition, dispatchevent(), docommand, focus, getattribute(), getattributenode(), getattributenodens(), getattributens(), getboundingclientrect(), getclientrects(), getelementsbyattribute, getelementsbyattributens, getelementsbyclassname(), getelementsbytagname(), getelementsbytagnamens(), getfeature, getuserdata, hasattribute(), hasattributens(), hasattributes(), haschildnodes(), insertbefore(), isdefaultnamespace(), isequalnode, issamenode, issupported(), lookupnamespaceuri, lookupprefix, normalize(), queryselector(), queryselectorall(), removeattribute(), removeattributenode(), removeattributens(), removechild(), removeeventlistener(), replacechild(), setattribute(), setattributenode(), setattributenodens(), setattributens(), setuserdata style classes the followin...
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CommandLine - Archive of obsolete content
s.interfaces.nsicategorymanager; const nsicomponentregistrar = components.interfaces.nsicomponentregistrar; const nsicommandline = components.interfaces.nsicommandline; const nsicommandlinehandler = components.interfaces.nsicommandlinehandler; const nsifactory = components.interfaces.nsifactory; const nsimodule = components.interfaces.nsimodule; const class_id = components.id("178cfbb6-503c-11dc-8314-0800200c9a66"); const class_name = "applicationnameclh"; const contract_id = "@example.com/applicationname/clh;1"; const cld_category = "m-applicationname"; var apphandler = { /* nsisupports */ queryinterface : function clh_qi(aiid) { if (aiid.equals(nsicommandlinehandler) || aiid.equals(nsifactory) || aiid.equals(nsisupports)...
...) return this; throw components.results.ns_error_no_interface; }, /* nsicommandlinehandler */ handle : function clh_handle(acmdline) { var observerservice = components.classes["@mozilla.org/observer-service;1"] .getservice(components.interfaces.nsiobserverservice); observerservice.notifyobservers(acmdline, "commandline-args-changed", null); }, helpinfo : " -test <value> a test attribute\n", /* nsifactory */ createinstance : function mdh_ci(aouter, aiid) { if (aouter != null) { throw components.results.ns_error_no_aggregation; } return this.queryinterface(aiid); }, lockfactory : function mdh_lock(alock) { /* no-op */ } }; var apphandlermodule = { /* nsisupports */ queryinterfa...
...ce : function mod_qi(aiid) { if (aiid.equals(nsimodule) || aiid.equals(nsisupports)) return this; throw components.results.ns_error_no_interface; }, /* nsimodule */ getclassobject : function mod_gch(acompmgr, acid, aiid) { if (acid.equals(class_id)) return apphandler.queryinterface(aiid); throw components.results.ns_error_failure; }, registerself : function mod_regself(acompmgr, afilespec, alocation, atype) { var compreg = acompmgr.queryinterface(nsicomponentregistrar); compreg.registerfactorylocation(class_id, class_name, contract_id, afilespec, alocation, atype); var catman = components.classes["@mozilla.org/categorymanager;1"] .getservice(nsicategorymanager); ...
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XULRunner tips - Archive of obsolete content
extension:manager-themes"); pref("xpinstall.dialog.progress.type.chrome", "extension:manager-extensions"); pref("extensions.update.enabled", true); pref("extensions.update.interval", 86400); pref("extensions.dss.enabled", false); pref("extensions.dss.switchpending", false); pref("extensions.ignoremtimechanges", false); pref("extensions.logging.enabled", false); pref("general.skins.selectedskin", "classic/1.0"); // nb these point at amo pref("extensions.update.url", "chrome://mozapps/locale/extensions/extensions.properties"); pref("extensions.getmoreextensionsurl", "chrome://mozapps/locale/extensions/extensions.properties"); pref("extensions.getmorethemesurl", "chrome://mozapps/locale/extensions/extensions.properties"); if your application is based on gecko 2.0, you need to register a componen...
...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 skin/communicator/ add a skin folder named "communicator" and add a single css file named "communicator.css" with this content: @import url("chrome://global/skin"); dom inspector to add dom inspector 2.0.* to your xulrunner 1.9.0.* application follow these steps: download the dom inspector (instead of clicking the "add to..." button, right-click and select "save li...
...preferences/inspector.js to your preferences directory open your chrome.manifest file and add these lines: content inspector jar:inspector.jar!/content/inspector/ xpcnativewrappers=no locale inspector en-us jar:inspector.jar!/locale/inspector/ skin inspector modern/1.0 jar:inspector.jar!/skin/modern/inspector/ skin inspector classic/1.0 jar:inspector.jar!/skin/classic/inspector/ overlay chrome://inspector/content/popupoverlay.xul chrome://inspector/content/viewers/dom/popupoverlay.xul overlay chrome://inspector/content/commandoverlay.xul chrome://inspector/content/viewers/stylerules/commandoverlay.xul overlay chrome://inspector/content/keysetoverlay.xul chrome://inspector/content/viewers/dom/keysetoverlay.xul overla...
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Archived Mozilla and build documentation - Archive of obsolete content
http class overview this document provides an overview of the classes used by the mozilla http implementation.
...these 2 objects let you make use of the standard jdk classes, e.g., javascript crypto mozilla defines a special javascript object to allow web pages access to certain cryptographic-related services.
... space manager detailed design the space manager and related classes and structures are an important of the gecko layout system, specifically block layout.
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Monitoring plugins - Archive of obsolete content
below are a number of javascript snippets that would be useful to developers trying to use this feature: registration to register for runtime notifications with the observer service you must create a class with an observe method which receives 3 parameters (subject, topic and data) as well as a register method that contains the following code: var observerservice = components.classes["@mozilla.org/observer-service;1"] .getservice (components.interfaces.nsiobserverservice); observerservice.addobserver(this, "experimental-notify-plugin-call", false); observing as dis...
...cussed above, to specify what you want done when a notification arrives your class must have an observe method, receiving 3 parameters (subject, topic and data).
...this is useful in cases where your class is registered to receive notifications for more than one topic with the observer service.
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The First Install Problem - Archive of obsolete content
this document proposes a meta-information model in the win32 registry similar to the one used by microsoft's hkey_classes_root\clsid\ where a new activex control (ocx) on the system presents its uuid as a registry key (identifying the activex control) as well as information about where to find the ocx (e.g.
... future directions: using object tag with classid: incidental benefit embedders such as compuserve (who now embed gecko in lieu of ie as the default browser) can determine on their own the mechanisms to parse the win32 registry for plids.
...if every major plugin vendor complies with the writing of plugin directory information into the registry along with a plid, we can then use the object tag to invoke plugins based on their "classid" (their respective plid, which is a uri, which works well with the w3c spec).
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LiveConnect Reference - Archive of obsolete content
this section documents the java classes used for liveconnect, along with their constructors and methods.
... javascript-to-java these classes allow a java object to access javascript code.
... jsexception the public class jsexception extends runtimeexception, and is thrown when javascript returns an error.
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Back to the Server: Server-Side JavaScript On The Rise - Archive of obsolete content
rhino offers a unique opportunity for the javascript developer to tap into the power of java classes using javascript.
...if you don’t already have it, you’ll need to also download the jdbc driver for mysql, extract the class files, and include the path in your classpath environment variable.
... the code in listing 1 is a sample javascript script which incorporates java classes to handle the database query.
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The box model - Learn web development
these elements would normally be inline, however, one of the elements has a class of block, and we have set it to display: block.
...both have a class of .box, which gives them the same width, height, margin, border, and padding.
... can you change the size of the second box (by adding css to the .alternate class) to make it match the first box in width and height?
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Useful string methods - Learn web development
playable code <h2>live output</h2> <div class="output" style="min-height: 125px;"> <ul> </ul> </div> <h2>editable code</h2> <p class="a11y-label">press esc to move focus away from the code area (tab inserts a tab character).</p> <textarea id="code" class="playable-code" style="height: 290px; width: 95%"> const list = document.queryselector('.output ul'); list.innerhtml = ''; let greetings = ['happy birthday!', 'merry ch...
...hristmas', 'get well soon']; for (let i = 0; i < greetings.length; i++) { let input = greetings[i]; // your conditional test needs to go inside the parentheses // in the line below, replacing what's currently there if (greetings[i]) { let listitem = document.createelement('li'); listitem.textcontent = input; list.appendchild(listitem); } } </textarea> <div class="playable-buttons"> <input id="reset" type="button" value="reset"> <input id="solution" type="button" value="show solution"> </div> html { font-family: sans-serif; } h2 { font-size: 16px; } .a11y-label { margin: 0; text-align: right; font-size: 0.7rem; width: 98%; } body { margin: 10px; background: #f5f9fa; } const textarea = document.getelementbyid('code'); const reset ...
... playable code 2 <h2>live output</h2> <div class="output" style="min-height: 125px;"> <ul> </ul> </div> <h2>editable code</h2> <p class="a11y-label">press esc to move focus away from the code area (tab inserts a tab character).</p> <textarea id="code" class="playable-code" style="height: 250px; width: 95%"> const list = document.queryselector('.output ul'); list.innerhtml = ''; let cities = ['london', 'manchester', 'birmingham', 'liverpool...
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Test your skills: Object-oriented JavaScript - Learn web development
we want you to: add a new method to the shape class's prototype, calcperimeter(), which calculates its perimeter (the length of the shape's outer edge) and logs the result to the console.
... create a new instance of the shape class called square.
... oojs 2 next up we want you to take the shape class you saw in task #1 (including the calcperimeter() method) and recreate it using es class syntax instead.
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React interactivity: Events and state - Learn web development
<input type="text" id="new-todo-input" classname="input input__lg" name="text" autocomplete="off" value={name} /> change "use hooks!" to an empty string once you're done; this is what we want for our initial state.
... // near the top of the `form` component function handlechange(e) { console.log("typing!"); } // down in the return statement <input type="text" id="new-todo-input" classname="input input__lg" name="text" autocomplete="off" value={name} onchange={handlechange} /> currently, your input’s value will not change as you type, but your browser will log the word "typing!" to the javascript console, so we know our event listener is attached to the input.
... your form.js file should now read like this: import react, { usestate } from "react"; function form(props) { const [name, setname] = usestate(""); function handlechange(e) { setname(e.target.value); } function handlesubmit(e) { e.preventdefault(); props.addtask(name); setname(""); } return ( <form onsubmit={handlesubmit}> <h2 classname="label-wrapper"> <label htmlfor="new-todo-input" classname="label__lg"> what needs to be done?
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Vue conditional rendering: editing existing todos - Learn web development
copy the following code into that file: <template> <form class="stack-small" @submit.prevent="onsubmit"> <div> <label class="edit-label">edit name for &quot;{{label}}&quot;</label> <input :id="id" type="text" autocomplete="off" v-model.lazy.trim="newlabel" /> </div> <div class="btn-group"> <button type="button" class="btn" @click="oncancel"> cancel <span class="visually-hidden">editing {{label}}</span> </bu...
...tton> <button type="submit" class="btn btn__primary"> save <span class="visually-hidden">edit for {{label}}</span> </button> </div> </form> </template> <script> export default { props: { label: { type: string, required: true }, id: { type: string, required: true } }, data() { return { newlabel: this.label }; }, methods: { onsubmit() { if (this.newlabel && this.newlabel !== this.label) { this.$emit("item-edited", this.newlabel); } }, oncancel() { this.$emit("edit-cancelled"); } } }; </script> <style scoped> .edit-label { font-family: arial, sans-serif; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; color: #0b0c0c; displa...
... <template> <div class="stack-small"> <div class="custom-checkbox"> <input type="checkbox" class="checkbox" :id="id" :checked="isdone" @change="$emit('checkbox-changed')" /> <label :for="id" class="checkbox-label">{{label}}</label> </div> <div class="btn-group"> <button type="button" class="btn" @click="toggletoitemeditform"> edit <span class="visually-hidden">{{label...
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Extending a Protocol
in ipdl there two kinds of "actors" - a "parent" and "child" - these actors are literally implemented as c++ classes, so they are more than just abstract ideas.
...class echochild final : public pechochild { friend class pechochild; // allows us to participate in reference counting ns_inline_decl_threadsafe_refcounting(echochild, final) public: explicit echochild(); protected: void actordestroy(actordestroyreason awhy) override; // we get sendecho(nscstring& astring) from the superclass.
...note the recvecho(), we finally get to define where a message is received, yay!: #ifndef mozilla_dom_echoparent_h #define mozilla_dom_echoparent_h #include "mozilla/dom/pechoparent.h" namespace mozilla { namespace dom { class echoparent final : public pechoparent { friend class pechoparent; ns_inline_decl_threadsafe_refcounting(echoparent, final) public: echoparent(); protected: // we receive messages via recv* prefixed methods!
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Implementing QueryInterface
class nsmyimplmentation : public nsbaseimplementation, public nsix, public nsiy { ...
... my base class |nsbaseimplementation| provides all the rest.
... maybe my base class can.
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Mozilla Framework Based on Templates (MFBT)
attributes.h implements various function and class attribute macros.
...the class macros permit controlling the inheritability of a class.
... guardobjects.h provides macros which can be used to annotate an raii-style guard class, so that any attempt to create an unnamed temporary for it will assert.
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Mozilla Quirks Mode Behavior
in quirks mode css class and id names are case insensitive.
... (this also applies to getelementsbyclassname.) stylesheets linked in the document with an advisory mime type of text/css will still be treated as css even if the server gives a content-type header other than text/css.
... the :hover and :active pseudo-classes will only be applied to links, and only if there is no other pseudo-class in the selector.
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NSS tools : signtool
-e extension tells signtool to sign only files with the given extension; for example, use -e".class" to sign only java class files.
... note that with netscape signing tool version 1.1 and later this option can appear multiple times on one command line, making it possible to specify multiple file types or classes to include.
...note that versions 1.1 and later of netscape signing tool correctly recognizes the codebase attribute, allows paths to be expressed for the class and src attributes instead of filenames only, processes link tags and parses html correctly, and offers clearer error messages.
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Rhino Examples
the nervoustext.js script is a javascript implementation of the famous nervoustext applet using javascript compiled to java classes using jsc.
...controlling the javascript engine the runscript class runscript.java is a simple program that executes a script from the command line.
... the control class control.java is a program that executes a simple script and then manipulates the result.
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Rhino history
originally, rhino compiled all javascript code to java bytecodes in generated classfiles.
...first, compilation time was long since generating java bytecodes and loading the generated classes was a heavyweight process.
... also, the implementation effectively leaked memory since most jvms don't really collect unused classes or the strings that are interned as a result of loading a class file.
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JS_ConstructObject
the preferred alternative is to save a copy of the constructor function for the class, then to call it using js_new.
... create a new object of the specified class, with the specified prototype and parent, then invokes a constructor function to initialize the new object.
... syntax jsobject * js_constructobject(jscontext *cx, jsclass *clasp, jsobject *proto, jsobject *parent); jsobject * js_constructobjectwitharguments(jscontext *cx, jsclass *clasp, jsobject *proto, jsobject *parent, unsigned int argc, jsval *argv); name type description cx jscontext * the context in which to create the new object.
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JS_GetInstancePrivate
retrieve the private data associated with an object, if that object is an instance of a specified class.
... syntax void * js_getinstanceprivate(jscontext *cx, js::handle<jsobject*> obj, const jsclass *clasp, js::callargs *args); // added in jsapi 32 void * js_getinstanceprivate(jscontext *cx, js::handle<jsobject*> obj, const jsclass *clasp, jsval *argv); // obsolete since jsapi 32 name type description cx jscontext * a context.
... clasp jsclass * class against which to test the object.
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JS_SetPrivate
description if a jsclass has the jsclass_has_private flag, each object of that class has a private field of type void * which the application may use for any purpose.
...for example, a socket class might use the private data field to store the socket handle.
...obj must be an instance of a class that has the jsclass_has_private flag.
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nsIDispatchSupport
inherits from: nsisupports last changed in gecko 1.7 method overview void comvariant2jsval(in comvariantptr comvar, out jsval val); unsigned long gethostingflags(in string acontext); boolean isclassmarkedsafeforscripting(in nscidref cid, out boolean classexists); boolean isclasssafetohost(in jscontextptr cx, in nscidref cid, in boolean capscheck, out boolean classexists); boolean isobjectsafeforscripting(in voidptr theobject, in nsiidref id); void jsval2comvariant(in jsval var, out comvariant comvar); methods comvariant2jsval() converts a com variant to a jsval.
...unsigned long gethostingflags( in string acontext ); parameters acontext return value isclassmarkedsafeforscripting() test if the specified class is marked safe for scripting.
... boolean isclassmarkedsafeforscripting( in nscidref cid, out boolean classexists ); parameters cid the nsid representation of the clsid to test.
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nsIModule
inherits from: nsisupports last changed in gecko 0.9.9 method overview boolean canunload(in nsicomponentmanager acompmgr); void getclassobject(in nsicomponentmanager acompmgr, in nscidref aclass, in nsiidref aiid, [retval, iid_is(aiid)] out nsqiresult aresult); void registerself(in nsicomponentmanager acompmgr, in nsifile alocation, in string aloaderstr, in string atype); void unregisterself(in nsicomponentmanager acompmgr, in nsifile alocation, in string aloaderstr); methods canunload() this method may be queried to determine whether or not the component module c...
...getclassobject() obtains a class object from a nsimodule for a given cid and iid pair.
... this class object can either be query to a nsifactory or a may be query to a nsiclassinfo.
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XPCOM reference
in addition, it details the various helper classes and functions, as well as the components, provided by the xpcom glue library.
... if you're working on a module in the mozilla codebase that's compiled with the mozilla_internal_api flag set, some of these apis -- the string functions and classes in particular -- are not the ones you should be using.
... core xpcom functionsxpcom provides a number of global functions which are used to initialize and shut down the xpcom library, as well as to allocate memory, get access to services, and to instantiate interfaces.foldersthe folder classes all implement the nsimsgfolder interface.
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Reference Manual
implementation details and debugging machinery although it is a class, nscomptr has no virtual methods, and therefore, no vtable or vptr.
... because a few key routines are factored out into a common non-template base class, the actual underlying pointer is stored as an nsisupports* (except in debug builds where nscap_feature_debug_ptr_types is turned on).
...however, the routines that would normally be factored into a base class now must become template-specific inlines.
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MailNews Protocols
those protocols all have the following, defined in the corresponding protocol subdirectory of mailnews (i.e., mailnews/imap, mailnews/local (for pop3), mailnews/news): an incoming server class, which implements nsimsgincomingserver and inherits from mailnews/base/util/nsmsgincomingserver, i.e.., nspop3incomingserver, nsimapincomingserver, nsnntpincomingserver.
... a folder class, which implements nsimsgfolder, and inherits from nsmsgdbfolder.
...nsimapmailfolder, nsnewsfolder, nslocalmailfolder (for pop3) a service class, which generally sits between the folder object or the server object, and the protocol object.
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AudioWorkletProcessor - Web APIs
constructor the audioworkletprocessor and classes that derive from it cannot be instantiated directly from a user-supplied code.
...the constructor of the deriving class is getting called with an options object, so you can perform a custom initialization procedures — see constructor page for details.
... usage notes deriving classes to define custom audio processing code you have to derive a class from the audioworkletprocessor interface.
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Element.getClientRects() - Web APIs
note that the javascript function that paints the client rects is connected to the markup via the class withclientrectsoverlay.
...note that the p has onlyone border box, while the span has multiple border boxes.</p> <div> <strong>original</strong> <p> <span>paragraph that spans multiple lines</span> </p> </div> <div> <strong>p's rect</strong> <p class="withclientrectsoverlay"> <span>paragraph that spans multiple lines</span> </p> </div> <div> <strong>span's rect</strong> <p> <span class="withclientrectsoverlay">paragraph that spans multiple lines</span> </p> </div> example 2: this html creates three ordered lists.
... <h3>a list</h3> <p>note that the border box doesn't include the number, so neither do the client rects.</p> <div> <strong>original</strong> <ol> <li>item 1</li> <li>item 2</li> </ol> </div> <div> <strong>ol's rect</strong> <ol class="withclientrectsoverlay"> <li>item 1</li> <li>item 2</li> </ol> </div> <div> <strong>each li's rect</strong> <ol> <li class="withclientrectsoverlay">item 1</li> <li class="withclientrectsoverlay">item 2</li> </ol> </div> example 3: this html creates two tables with captions.
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Element - Web APIs
element is the most general base class from which all element objects (i.e.
...more specific classes inherit from element.
...most functionality is specified further down the class hierarchy.
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Using files from web applications - Web APIs
accessing the first selected file using a classical dom selector: const selectedfile = document.getelementbyid('input').files[0]; accessing selected file(s) on a change event it is also possible (but not mandatory) to access the filelist through the change event.
... consider this html: <input type="file" id="fileelem" multiple accept="image/*" class="visually-hidden"> <label for="fileelem">select some files</label> and this css: .visually-hidden { position: absolute !important; height: 1px; width: 1px; overflow: hidden; clip: rect(1px, 1px, 1px, 1px); } /* separate rule for compatibility, :focus-within is required on modern firefox and chrome */ input.visually-hidden:focus + label { outline: thin dotted; } input.visually-hidde...
... function handlefiles(files) { for (let i = 0; i < files.length; i++) { const file = files[i]; if (!file.type.startswith('image/')){ continue } const img = document.createelement("img"); img.classlist.add("obj"); img.file = file; preview.appendchild(img); // assuming that "preview" is the div output where the content will be displayed.
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The HTML DOM API - Web APIs
html element interfaces the element interface has been further adapted to represent html elements specifically by introducing the htmlelement interface, which all more specific html element classes inherit from.
... this expands the element class to add html-specific general features to the element nodes.
...the htmlelement class, in turn, implements node, so every element is also a node (but not the other way around).
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USBAlternateInterface - Web APIs
usbalternateinterface.interfaceclassread only returns the class of this interface.
... this is equal to the binterfaceclass field of the interface descriptor defining this interface.
... usbalternateinterface.interfacesubclassread only returns the subclass of this interface.
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Viewpoints and viewers: Simulating cameras in WebXR - Web APIs
cameras and relative movement when a classic live-action movie is filmed, the actors are on a set and move about the set as they perform, with one or more cameras watching their moves.
...for example, a classic arcade game such as pac-man takes place on a fixed game map, so the camera remains fixed a set distance above the map, always pointed straight down at the game world.
... simulating classic cinematography cinematography is the art of designing, planning, and executing camera movements to create the desired look and emotion for a scene in animation or film.
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:-moz-ui-invalid - CSS: Cascading Style Sheets
the :-moz-ui-invalid css pseudo-class represents any validated form element whose value isn't valid based on their validation constraints, in certain circumstances.
... this pseudo-class is applied according to the following rules: if the control does not have focus, and the value is invalid, apply this pseudo-class.
... if the control has focus, and the value was valid (including empty) when it gained focus, do not apply the pseudo-class.
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:host() - CSS: Cascading Style Sheets
the :host() css pseudo-class function selects the shadow host of the shadow dom containing the css it is used inside (so you can select a custom element from inside its shadow dom) — but only if the selector given as the function's parameter matches the shadow host.
... the most obvious use of this is to put a class name only on certain custom element instances, and then include the relevant class selector as the function argument.
...<subclass-selector>* [ <pseudo-element-selector> <pseudo-class-selector>* ]* ]!where <type-selector> = <wq-name> | <ns-prefix>?
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:hover - CSS: Cascading Style Sheets
the :hover css pseudo-class matches when the user interacts with an element with a pointing device, but does not necessarily activate it.
... /* selects any <a> element when "hovered" */ a:hover { color: orange; } styles defined by the :active pseudo-class will be overridden by any subsequent link-related pseudo-class (:link, :visited, or :active) that has at least equal specificity.
... note: the :hover pseudo-class is problematic on touchscreens.
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:invalid - CSS: Cascading Style Sheets
the :invalid css pseudo-class represents any <input> or other <form> element whose contents fail to validate.
... /* selects any invalid <input> */ input:invalid { background-color: pink; } this pseudo-class is useful for highlighting field errors for the user.
... html <form> <div class="field"> <label for="url_input">enter a url:</label> <input type="url" id="url_input"> </div> <div class="field"> <label for="email_input">enter an email address:</label> <input type="email" id="email_input" required> </div> </form> css label { display: block; margin: 1px; padding: 1px; } .field { margin: 1px; padding: 1px; } input:invalid { background-color: #ffdddd; } form:invalid { border: 5px solid #ffdddd; } input:valid { background-color: #ddffdd; } form:valid { border: 5px solid #ddffdd; } input:required { border-color: #800000; border-width: 3px; } input:required:invalid {...
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:target - CSS: Cascading Style Sheets
the :target css pseudo-class represents a unique element (the target element) with an id matching the url's fragment.
...rder: 2px solid black; } for example, the following url has a fragment (denoted by the # sign) that points to an element called section2: http://www.example.com/index.html#section2 the following element would be selected by a :target selector when the current url is equal to the above: <section id="section2">example</section> syntax :target examples a table of contents the :target pseudo-class can be used to highlight the portion of a page that has been linked to from a table of contents.
...isn't that delightful?</p> css p:target { background-color: gold; } /* add a pseudo-element inside the target element */ p:target::before { font: 70% sans-serif; content: "►"; color: limegreen; margin-right: .25em; } /* style italic elements within the target element */ p:target i { color: red; } result pure-css lightbox you can use the :target pseudo-class to create a lightbox without using any javascript.
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Grid template areas - CSS: Cascading Style Sheets
ain main main main main" "ft ft ft ft ft ft ft ft ft"; } * {box-sizing: border-box;} .wrapper { border: 2px solid #f76707; border-radius: 5px; background-color: #fff4e6; max-width: 940px; margin: 0 auto; } .wrapper > div { border: 2px solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } <div class="wrapper"> <div class="header">header</div> <div class="sidebar">sidebar</div> <div class="content">content</div> <div class="footer">footer</div> </div> using this method we do not need to specify anything at all on the individual grid items, everything happens on our grid container.
... ft ft ft ft ft ft"; } <div class="wrapper"> <div class="header">header</div> <div class="sidebar">sidebar</div> <div class="content">content</div> <div class="footer">footer</div> </div> in order to make the layout neater i can use multiple .
...solid #ffa94d; border-radius: 5px; background-color: #ffd8a8; padding: 1em; color: #d9480f; } .wrapper { display: grid; grid-template-columns: repeat(9, 1fr); grid-auto-rows: minmax(100px, auto); grid-template-areas: "hd hd hd hd hd hd hd hd hd" "sd sd sd main main main main main main" "sd sd sd ft ft ft ft ft ft"; } <div class="wrapper"> <div class="header">header</div> <div class="sidebar">sidebar</div> <div class="content">content</div> <div class="footer">footer</div> </div> the value of grid-template-areas must show a complete grid, otherwise it is invalid (and the property is ignored).
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Stacking context example 3 - CSS: Cascading Style Sheets
« css « understanding css z-index stacking context example 3 this last example shows problems that arise when mixing several positioned elements in a multi-level html hierarchy and when z-indexes are assigned using class selectors.
...usually this kind of menu is script-generated either client-side or server-side, so style rules are assigned with a class selector instead of the id selector.
... level #1 this problem can be avoided by removing overlapping between different level menus, or by using individual (and different) z-index values assigned through the id selector instead of class selector, or by flattening the html hierarchy.
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CSS selectors - CSS: Cascading Style Sheets
class selector selects all elements that have the given class attribute.
... syntax: .classname example: .index will match any element that has a class of "index".
... pseudo pseudo classes the : pseudo allow the selection of elements based on state information that is not contained in the document tree.
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animation - CSS: Cascading Style Sheets
/* @keyframes duration | timing-function | delay | iteration-count | direction | fill-mode | play-state | name */ animation: 3s ease-in 1s 2 reverse both paused slidein; /* @keyframes name | duration | timing-function | delay */ animation: 3s linear 1s slidein; /* @keyframes name | duration */ animation: slidein 3s; <div class="grid"> <div class="col"> <div class="note"> given the following animation: <pre>@keyframes slidein { from { transform: scalex(0); } to { transform: scalex(1); } }</pre> </div> <div class="row"> <div class="cell"> <button class="play" title="play"></button> </div> <div class="cell flx"> <div class="overlay">animation: 3s ease-in 1s...
... 2 reverse both paused slidein;</div> <div class="animation a1"></div> </div> </div> <div class="row"> <div class="cell"> <button class="pause" title="pause"></button> </div> <div class="cell flx"> <div class="overlay">animation: 3s linear 1s slidein;</div> <div class="animation a2"></div> </div> </div> <div class="row"> <div class="cell"> <button class="pause" title="pause"></button> </div> <div class="cell flx"> <div class="overlay">animation: 3s slidein;</div> <div class="animation a3"></div> </div> </div> </div> </div> html,body { height: 100%; box-sizing: border-box; } pre { margin-bottom: 0; } svg { width: 1.5em; height: 1.5em; } button { width: 27px...
...inear 1s slidein; } .a3 { animation: 3s slidein; } .animation { background: #3f87a6; width: 100%; height: calc(100% - 1.5em); transform-origin: left center; } window.addeventlistener('load', function () { var animation = array.from(document.queryselectorall('.animation')); var button = array.from(document.queryselectorall('button')); function togglebutton (btn, type) { btn.classlist.remove('play', 'pause', 'restart'); btn.classlist.add(type); btn.title = type.touppercase(type); } function playpause (i) { var btn = button[i]; var anim = animation[i]; if (btn.classlist.contains('play')) { anim.style.animationplaystate = 'running'; togglebutton(btn, 'pause'); } else if (btn.classlist.contains('pause')) { anim.style.animationp...
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max-block-size - CSS: Cascading Style Sheets
html the html simply establishes the two <div> blocks that will be presented with their writing-mode set using the classes horizontal or vertical.
... both boxes share the standard-box class, which simply establishes coloring, padding, and their respective values of max-block-size.
... <p>writing mode <code>horizontal-tb</code> (the default):</p> <div class="standard-box horizontal"> call me ishmael.
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HTML attribute: readonly - HTML: Hypertext Markup Language
if present on any of these input types and elements, the :read-only pseudo class will match.
... if the attribute is not included, the :read-write pseudo class will match.
... when an input has the readonly attribute, the :read-only pseudo-class also applies to it.
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HTML documentation index - HTML: Hypertext Markup Language
10 class global attributes, html, reference the class global attribute is a space-separated list of the case-sensitive classes of the element.
... classes allow css and javascript to select and access specific elements via the class selectors or functions like the dom method document.getelementsbyclassname.
... 13 data-* global attributes, html, reference the data-* global attributes form a class of attributes called custom data attributes, that allow proprietary information to be exchanged between the html and its dom representation by scripts.
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extends - JavaScript
the extends keyword is used in class declarations or class expressions to create a class that is a child of another class.
... syntax class childclass extends parentclass { ...
... } description the extends keyword can be used to subclass custom classes as well as built-in objects.
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Function.name - JavaScript
let o = { get foo(){}, set foo(x){} }; var descriptor = object.getownpropertydescriptor(o, "foo"); descriptor.get.name; // "get foo" descriptor.set.name; // "set foo"; function names in classes you can use obj.constructor.name to check the "class" of an object (but be sure to read the warnings below): function foo() {} // es2015 syntax: class foo {} var fooinstance = new foo(); console.log(fooinstance.constructor.name); // logs "foo" warning: the script interpreter will set the built-in function.name property only if a function does not have an own property called name (see sec...
...however, es2015 specifies the static keyword such that static methods will be set as ownproperty of the class constructor function (ecmascript2015, 14.5.14.21.b + 12.2.6.9).
... therefore we can't obtain the class name for virtually any class with a static method property name(): class foo { constructor() {} static name() {} } with a static name() method foo.name no longer holds the actual class name but a reference to the name() function object.
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export - JavaScript
syntax there are two types of exports: named exports (zero or more exports per module) default exports (one per module) // exporting individual features export let name1, name2, …, namen; // also var, const export let name1 = …, name2 = …, …, namen; // also var, const export function functionname(){...} export class classname {...} // export list export { name1, name2, …, namen }; // renaming exports export { variable1 as name1, variable2 as name2, …, namen }; // exporting destructured assignments with renaming export const { name1, name2: bar } = o; // default exports export default expression; export default function (…) { … } // also class, function* export default function name1(…) { … } ...
...// also class, function* export { name1 as default, … }; // aggregating modules export * from …; // does not set the default export export * as name1 from …; // draft ecmascript® 2o21 export { name1, name2, …, namen } from …; export { import1 as name1, import2 as name2, …, namen } from …; export { default } from …; namen identifier to be exported (so that it can be imported via import in another script).
...each type corresponds to one of the above syntax: named exports: // export features declared earlier export { myfunction, myvariable }; // export individual features (can export var, let, // const, function, class) export let myvariable = math.sqrt(2); export function myfunction() { ...
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Bookmarks - Archive of obsolete content
firefox 2 and earlier creating a new bookmark var win = mybrowser.contentwindow; // get the bookmarks service const bmsvc = components.classes["@mozilla.org/browser/bookmarks-service;1"] .getservice(components.interfaces.nsibookmarksservice); // create the bookmark bmsvc.createbookmarkincontainer(win.document.title, // bookmark name win.location.href.tostring(), // uri of the bookmark null, // shortcut win.document.title, // description win.document.characterset, // charset null, // postdata bookmarksservice.getbookmarkstoolbarfolder(), // bookmark folder ...
... initiating the bookmarks service as is the case with nearly all interfaces, before you can use the bookmarks service, you need to get access to it: var bmsvc = components.classes["@mozilla.org/browser/nav-bookmarks-service;1"] .getservice(components.interfaces.nsinavbookmarksservice); creating a bookmark folder creating a new bookmark folder is done using the nsinavbookmarksservice.createfolder() method.
... var ios = components.classes["@mozilla.org/network/io-service;1"] .getservice(components.interfaces.nsiioservice); var uri = ios.newuri("http://google.com/", null, null); var newbkmkid = bmsvc.insertbookmark(newfolderid, uri, bmsvc.default_index, ""); this example instantiates the nsiioservice and uses it to create an nsiuri referring to the google web site, then calls nsinavbookmarksservice.insertboo...
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Migrating from Internal Linkage to Frozen Linkage - Archive of obsolete content
use .setlength() instead: nsstring mystring = somestring; - mystring.truncate(4); + mystring.setlength(4); the frozen string api doesn't support the iterator or const_iterator classes, but you can use pointers the same way: nsstring mystring = somestring; - nsstring::const_iterator begin, end;- mystring.beginreading(begin); mystring.endreading(end); + const prunichar *begin, *end;+ mystring.beginreading(&begin, &end); the frozen string api uses comparator functions instead of a virtual comparator class.
...this means that the + operator is not implemented, nor are the promiseflatstring functions or classes around any more.
...the tonewcstring, tonewunicode methods only work on the appropriate string class.
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Session store API - Archive of obsolete content
if your extension wants to be able to restore data when tabs are restored, you can install a listener like this: function myextensionhandlerestore(aevent) { var tab = event.originaltarget; /* the tab being restored */ var uri = tab.linkedbrowser.contentdocument.location; /* the tab's uri */ components.classes["@mozilla.org/consoleservice;1"] .getservice(components.interfaces.nsiconsoleservice) .logstringmessage("restoring tab: " + uri); }; document.addeventlistener("sstabrestoring", myextensionhandlerestore, false); simply replace the contents of the function myextensionhandlerestore() with whatever you need to do when the tab is restored.
... var ss = components.classes["@mozilla.org/browser/sessionstore;1"] .getservice(components.interfaces.nsisessionstore); var currenttab = gbrowser.selectedtab; var datatoattach = "i want to attach this"; ss.settabvalue(currenttab, "key-name-here", datatoattach); this code sets the value of the key "key-name-here" to datatoattach.
... fetching a saved value you can fetch a value associated with a tab at any time (whether the tab is in the process of being restored or not), using code similar to the following: var ss = components.classes["@mozilla.org/browser/sessionstore;1"] .getservice(components.interfaces.nsisessionstore); var currenttab = gbrowser.selectedtab; var retrieveddata = ss.gettabvalue(currenttab, "key-name-here"); after this code executes, the variable retrieveddata contains the value saved for the key "key-name-here".
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Index of archived content - Archive of obsolete content
communicating using "port" communicating using "postmessage" cross-domain content scripts interacting with page scripts loading content scripts reddit example port self contributor's guide classes and inheritance content processes getting started modules private properties firefox compatibility module structure of the sdk porting the library detector program id sdk api lifecycle sdk and xul comparison ...
... system overview using microformats firefox sync code snippets javascript client api syncing custom preferences force rtl gre gre registration gecko coding help wanted http class overview hacking wiki help viewer creating a help content pack helper apps (and a bit of save as) hidden prefs how to write and land nanojit patches io guide/directory keys introducing the audio api extension isp data java in firefox extensions ...
...ld system documentation tamarin releases tamarin-central rev 703:2cee46be9ce0 tamarin roadmap tamarin build documentation tamarin mercurial commit hook the download manager schema the life of an html http request the new nsstring class implementation (1999) tracevis transforming xml with xslt:mozilla xslt transforming xml with xslt:the netscape xslt treehydra treehydra build instructions treehydra manual tuning pageload urischeme uris and urls uriloader using addresses ...
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Inner-browsing extending the browser navigation paradigm - Archive of obsolete content
var x = new xmlremoterequest(); doc=x.getremotedocument(loaddata); note: the above code snippet shows an object being instanciated based on a class named xmlremoterequest.
... this class is just an abstraction layer that encapsulates the xmlhttprequest interface, and provides cross-browser support for recent ie versions and gecko-based browsers.
... if(document.all) tagname="nde:"+tagname; valuee=article.getelementsbytagname(tagname).item(0).firstchild.nodevalue; tagname="summary"; // ie fix if(document.all) tagname="nde:"+tagname; paraa=article.getelementsbytagname(tagname).item(0).firstchild.nodevalue; linkk=article.getattribute("url"); strvalue="<div class='nde-blurb'><h3><a href='"+linkk+"'>"+valuee+"</a></h3><p>"+paraa+"</p></div>"; document.getelementbyid("container").innerhtml+=strvalue; } } if(previousele) { previousele.style.backgroundcolor="white"; } ele.style.backgroundcolor="#ddeeff"; previousele=ele; } var previousele=null; </script> <style> .tab { position:relative;top:1px; border: 1px solid #dddddd; color:white; ba...
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Basics - Archive of obsolete content
class console writes some information to the error console.
...class notifications the notification box appears at the bottom right corner of the browser and displays important information to the user.
... the namespace for this class is jetpack.notificaitons.
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Reading textual data - Archive of obsolete content
converting read data if you read data from nsiscriptableinputstream as described on the file i/o code snippets page, you can convert it to utf-8 // sstream is nsiscriptableinputstream var str = sstream.read(4096); var utf8converter = components.classes["@mozilla.org/intl/utf8converterservice;1"].
...using utf-8 for this example: */ "utf-8"; const replacementchar = components.interfaces.nsiconverterinputstream.default_replacement_character; var is = components.classes["@mozilla.org/intl/converter-input-stream;1"] .createinstance(components.interfaces.nsiconverterinputstream); is.init(fis, charset, 1024, replacementchar); now you can read string from is: var str = {}; var numchars = is.readstring(4096, str); if (numchars != 0 /* eof */) var read_string = str.value; to read the entire stream and do something with the data: var str = ...
...using utf-8 for this example: */ "utf-8"; var is = components.classes["@mozilla.org/intl/converter-input-stream;1"] .createinstance(components.interfaces.nsiconverterinputstream); // this assumes that fis is the nsiinputstream you want to read from is.init(fis, charset, 1024, 0xfffd); is.queryinterface(components.interfaces.nsiunicharlineinputstream); if (is instanceof components.interfaces.nsiunicharlineinputstream) { var line = {}; var c...
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Supporting per-window private browsing - Archive of obsolete content
// might use doc.hasattribute("privatebrowsingmode") then instead) try { var inprivatebrowsing = components.classes["@mozilla.org/privatebrowsing;1"].
... } } catch(e) { components.utils.reporterror(e); return; } } obtaining an nsiloadcontext for privacy-sensitive 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).
...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 private data, where the transactions will be terminated by the ending of a private session, an add-on can vote to prevent the session from ...
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Creating a Skin - Archive of obsolete content
this section assumes that you are starting with the classic skin.
... copy a manifest file (contents.rdf) from the classic or modern skin into this new directory.
...for example, change references of 'classic/1.0' to 'blueswayedshoes/1.0'.
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Introduction to RDF - Archive of obsolete content
lns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:animals="http://www.some-fictitious-zoo.com/rdf#"> <rdf:seq about="http://www.some-fictitious-zoo.com/all-animals"> <rdf:li> <rdf:description about="http://www.some-fictitious-zoo.com/mammals/lion"> <animals:name>lion</animals:name> <animals:species>panthera leo</animals:species> <animals:class>mammal</animals:class> </rdf:description> </rdf:li> <rdf:li> <rdf:description about="http://www.some-fictitious-zoo.com/arachnids/tarantula"> <animals:name>tarantula</animals:name> <animals:species>avicularia avicularia</animals:species> <animals:class>arachnid</animals:class> </rdf:description> </rdf:li> <rdf:li> <rdf:descrip...
...tion about="http://www.some-fictitious-zoo.com/mammals/hippopotamus"> <animals:name>hippopotamus</animals:name> <animals:species>hippopotamus amphibius</animals:species> <animals:class>mammal</animals:class> </rdf:description> </rdf:li> </rdf:seq> </rdf:rdf> here, three records have been described, one for each animal.
...within each record, three fields are described, name, species and class.
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Introduction to XBL - Archive of obsolete content
if you use css classes, you can use as many different bindings as you need.
...by assigning a class to a box tag, you can associate a binding to only those boxes that belong to that class.
...xul (example.xul): <?xml version="1.0"?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <?xml-stylesheet href="chrome://example/skin/example.css" type="text/css"?> <window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <box class="okcancelbuttons"/> </window> css (example.css): box.okcancelbuttons { -moz-binding: url('chrome://example/skin/example.xml#okcancel'); } xbl (example.xml): <?xml version="1.0"?> <bindings xmlns="http://www.mozilla.org/xbl" xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <binding id="okcancel"> <content> <xul:button label="ok"/> <xul:button label="cancel"/> </content> </binding> </bindings> this example creates a win...
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separator - Archive of obsolete content
attributes orient style classes groove, groove-thin, thin examples <separator class="groove-thin"/> attributes orient type: one of the values below used to specify whether the separator is a horizontal or vertical separator.
... inherited from xul element align, allowevents, allownegativeassertions, class, coalesceduplicatearcs, collapsed, container, containment, context, contextmenu, datasources, dir, empty, equalsize, flags, flex, height, hidden, id, insertafter, insertbefore, left, maxheight, maxwidth, menu, minheight, minwidth, mousethrough, observes, ordinal, orient, pack, persist, popup, position, preference-editable, querytype, ref, removeelement, sortdirection, sortresource, sortresource2, statustext, style, template, tooltip, tooltiptext, top, uri, wait-cursor, width properties inherited ...
...properties align, , allowevents, , boxobject, builder, , , , classname, , , , , collapsed, contextmenu, controllers, database, datasources, dir, , , flex, height, hidden, id, , , left, , maxheight, maxwidth, menu, minheight, minwidth, , , , , , , observes, ordinal, orient, , pack, , persist, , , , ref, resource, , , , , statustext, style, ,, tooltip, tooltiptext, top, width methods inherited methods addeventlistener(), appendchild(), blur, click, clonenode(), comparedocumentposition, dispatchevent(), docommand, focus, getattribute(), getattributenode(), getattributenodens(), getattributens(), getboundingclientrect(), getclientrects(), getelementsbyattribute, getelementsbyattributens, getelementsbyclassname(), getelementsbytagname(), getelementsbytagnamens(), getfeature, getuserdata, ...
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textbox - Archive of obsolete content
properties accessibletype, clickselectsall, decimalplaces, decimalsymbol, defaultvalue, disabled, editor, emptytext, increment, inputfield, label, max, maxlength, min, placeholder, readonly, searchbutton, selectionend, selectionstart, size, spinbuttons, tabindex, textlength, timeout, type, value, valuenumber, wraparound methods decrease, increase, reset, select, setselectionrange style classes plain examples <vbox> <label control="your-name" value="enter your name:"/> <textbox id="your-name" value="john"/> </vbox> attributes cols type: integer for multiline textboxes, the number of columns to display.
... inherited methods addeventlistener(), appendchild(), blur, click, clonenode(), comparedocumentposition, dispatchevent(), docommand, focus, getattribute(), getattributenode(), getattributenodens(), getattributens(), getboundingclientrect(), getclientrects(), getelementsbyattribute, getelementsbyattributens, getelementsbyclassname(), getelementsbytagname(), getelementsbytagnamens(), getfeature, getuserdata, hasattribute(), hasattributens(), hasattributes(), haschildnodes(), insertbefore(), isdefaultnamespace(), isequalnode, issamenode, issupported(), lookupnamespaceuri, lookupprefix, normalize(), queryselector(), queryselectorall(), removeattribute(), removeattributenode(), removeattributens(), removechild(), removeeve...
...ntlistener(), replacechild(), setattribute(), setattributenode(), setattributenodens(), setattributens(), setuserdata style classes the following classes may be used to style the element.
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NPObject - Archive of obsolete content
« gecko plugin api reference « scripting plugins summary npobject is a structure that holds a pointer to an npclass and an integer reference count, and possibly also implementation specific (i.e.
...npobject behavior is implemented using the set of callback functions defined in npclass.
... syntax struct npobject { npclass *_class; uint32_t referencecount; /* * additional space may be allocated here by types of npobjects */ }; fields _class a pointer to the npclass of which the object is a member.
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Building a Theme - Archive of obsolete content
the location differs by operating system: linux: /usr/lib/mozillafirefox/chrome/classic.ja or /usr/lib/firefox-*.*.*/omni.ja windows: \program files\mozilla firefox\omni.ja mac os x: /applications/firefox.app/contents/macos/omni.ja now, open (or unzip) this file into the directory you created.
...the files we will be needing are located under the chrome\toolkit\skin\classic folder.
...the files we will be needing from the browser/omni.ja archive are located under chrome/browser/skin/classic.
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Browser Detection and Cross Browser Support - Archive of obsolete content
the classic example of this vendor/version client side detection strategy can be found in the ultimate browser sniffer.
... these strategies of classifying browsers by vendor/version, assuming that the only browsers being used where either netscape navigator 4 or internet explorer 4 failed when alternative browsers such as those based upon gecko were introduced.
... using javascript objects to determine vendor/version as we already discussed, a common approach in the past was to use objects to classify browsers by vendor/version.
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:-moz-system-metric() - Archive of obsolete content
note: since firefox 58, this pseudo-class is no longer available to web content — it is only available internally (e.g.
... syntax values -moz-windows-compositormedia: media/visual accepts min/max prefixes: no:-moz-system-metric(images-in-menus)the :-moz-system-metric(images-in-menus) css pseudo-class matches an element if the computer's user interface supports images in menus.:-moz-system-metric(mac-graphite-theme):-moz-system-metric(mac-graphite-theme) will match an element if the user has chosen the "graphite" appearance in the "appearance" prefpane of the mac os x system preferences.:-moz-system-metric(scrollbar-end-backward)the :-moz-system-metric(scrollbar-end-backward) css pseudo-class will match an element if the computer's user interface includes a backward arrow button at the end of scrollbars.:-moz-system-metric(scrollbar-end-forward)the :-moz...
...-system-metric(scrollbar-end-forward) css pseudo-class will match an element if the computer's user interface includes a forward arrow button at the end of scrollbars.:-moz-system-metric(scrollbar-start-backward)the :-moz-system-metric(scrollbar-start-backward) css pseudo-class will match an element if the computer's user interface includes a backward arrow button at the start of scrollbars.:-moz-system-metric(scrollbar-start-forward)the :-moz-system-metric(scrollbar-start-forward) css pseudo-class will match an element if the computer's user interface includes a forward arrow button at the start of scrollbars.:-moz-system-metric(scrollbar-thumb-proportional)the :-moz-system-metric(scrollbar-thumb-proportional) css pseudo-class will match an element if the computer's user interface uses proport...
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Styling the Amazing Netscape Fish Cam Page - Archive of obsolete content
summary: a classic reborn!
... <div class="card"> <img src="thumb_clown_trigger.jpg" alt="clown trigger" border="0" width="150" height="115"> <h3>clown trigger</h3> <p> our clown trigger is a bold little fish, though for a few weeks he slept a lot and didn't look well in general.
...the reason for the class value being card is that the original idea was to style each fish's description like a trading card.
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RDF in Mozilla FAQ - Archive of obsolete content
you can either create an rdf/xml datasource using the rdf service's getdatasource() method: // get the rdf service var rdf = components .classes["@mozilla.org/rdf/rdf-service;1"] .getservice(components.interfaces.nsirdfservice); // ...and from it, get the datasource.
...var ds = rdf.getdatasource("http://www.mozilla.org/some-rdf-file.rdf"); // note that ds will load asynchronously, so assertions will not // be immediately available alternatively, you can create one directly using the xpcom component manager, as the following code fragment illustrates: // create an rdf/xml datasource using the xpcom component manager var ds = components .classes["@mozilla.org/rdf/datasource;1?name=xml-datasource"] .createinstance(components.interfaces.nsirdfdatasource); // the nsirdfremotedatasource interface has the interfaces // that we need to setup the datasource.
... using the nsirdfremotedatasource interface, it is possible to immediately query the loaded property to determine if the datasource has loaded or not: // get the rdf service var rdf = components .classes["@mozilla.org/rdf/rdf-service;1"] .getservice(components.interfaces.nsirdfservice); // get the datasource.
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Examples - Game development
dead trigger 2 classic zombie splatter action, made with unity3d.
... shoot the rocks a canvas 2d single-player shooter in the style of atari's classic asteroids arcade game from 1979.
... star citadel a new take on star castle, cinematronics' classic 1980 arcade game, built with canvas 2d.
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Combinators - Learn web development
body article p in the example below, we are matching only the <p> element which is inside an element with a class of .box.
...for example if we want to select list items with a class of "a", which are direct children of a <ul>, i could use the following.
... ul > li[class="a"] { } take care however when creating big lists of selectors that select very specific parts of your document.
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create fancy boxes - Learn web development
we are about to see many examples, but we will always work on the most simple piece of html possible, a simple element: <div class="fancy">hi!
... making circles <div class="fancy">hi!
... <div class="fancy">hi!
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Advanced form styling - Learn web development
let's start by unstyling the original check boxes: input[type="checkbox"] { -webkit-appearance: none; appearance: none; } we can use the :checked and :disabled pseudo-classes to change the appearance of our custom checkbox as its state changes: input[type="checkbox"] { position: relative; width: 1em; height: 1em; border: 1px solid gray; /* adjusts the position of the checkboxes on the text baseline */ vertical-align: -2px; /* set here so that windows' high-contrast mode can override */ color: green; } input[type="checkbox"]::before { content: "�...
...�"; position: absolute; font-size: 1.2em; right: -1px; top: -0.3em; visibility: hidden; } input[type="checkbox"]:checked::before { /* use `visibility` instead of `display` to avoid recalculating layout */ visibility: visible; } input[type="checkbox"]:disabled { border-color: black; background: #ddd; color: gray; } you'll find more out about such pseudo-classes and more in the next article; the above ones do the following: :checked — the checkbox (or radio button) is in a checked state — the user has clicked/activated it.
...we put an extra wrapper around the control, because ::before/::after don't work on <select> elements (this is because generated content is placed relative to an element's formatting box, but form inputs work more like replaced elements — their display is generated by the browser and put in place — and therefore don't have one): <div class="select-wrapper"><select id="select" name="select"> <option>banana</option> <option>cherry</option> <option>lemon</option> </select></div> we then use generated content to generate a little down arrow, and put it in the right place using positioning: .select-wrapper { position: relative; } .select-wrapper::after { content: "▼"; font-size: 1rem; top: 6px; right: 10px; positi...
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Advanced text formatting - Learn web development
playable code <h2>live output</h2> <div class="output" style="min-height: 50px;"> </div> <h2>editable code</h2> <p class="a11y-label">press esc to move focus away from the code area (tab inserts a tab character).</p> <textarea id="code" class="input" style="min-height: 100px; width: 95%"> bacon the glue that binds the world together.
...a light brown color.</textarea> <div class="playable-buttons"> <input id="reset" type="button" value="reset"> <input id="solution" type="button" value="show solution"> </div> html { font-family: sans-serif; } h2 { font-size: 16px; } .a11y-label { margin: 0; text-align: right; font-size: 0.7rem; width: 98%; } body { margin: 10px; background: #f5f9fa; } const textarea = document.getelementbyid('code'); const reset = document.getelementbyid('reset'); const solution = document.getelementbyid('solution'); const output = document.queryselector('.output'); const code = textarea.value; const userentry = textarea.value; function updatecode() { output.innerhtml = textarea...
... playable code 2 <h2>live output</h2> <div class="output" style="min-height: 50px;"> </div> <h2>editable code</h2> <p class="a11y-label">press esc to move focus away from the code area (tab inserts a tab character).</p> <textarea id="code" class="input" style="min-height: 150px; width: 95%"> <p>hello and welcome to my motivation page.
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Getting started with HTML - Learn web development
playable code <h2>live output</h2> <div class="output" style="min-height: 50px;"> </div> <h2>editable code</h2> <p class="a11y-label">press esc to move focus away from the code area (tab inserts a tab character).</p> <textarea id="code" class="playable-code" style="min-height: 100px;width: 95%"> this is my text.
... </textarea> <div class="controls"> <input id="reset" type="button" value="reset" /> <input id="solution" type="button" value="show solution" /> </div> html { font-family: 'open sans light',helvetica,arial,sans-serif; } h2 { font-size: 16px; } .a11y-label { margin: 0; text-align: right; font-size: 0.7rem; width: 98%; } body { margin: 10px; background: #f5f9fa; } var textarea = document.getelementbyid('code'); var reset = document.getelementbyid('reset'); var solution = document.getelementbyid('solution'); var output = document.queryselector('.output'); var code = textarea.value; var userentry = textarea.value; function updatecode() { output.innerhtml = textarea.value; } reset.addeventlistener('click', function() { textarea.value = code; userentry = textarea.v...
...in this example, the class attribute is an identifying name used to target the element with style information.
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Build your own function - Learn web development
finally, add the following code inside the curly braces: const html = document.queryselector('html'); const panel = document.createelement('div'); panel.setattribute('class', 'msgbox'); html.appendchild(panel); const msg = document.createelement('p'); msg.textcontent = 'this is a message box'; panel.appendchild(msg); const closebtn = document.createelement('button'); closebtn.textcontent = 'x'; panel.appendchild(closebtn); closebtn.onclick = function() { panel.parentnode.removechild(panel); } this is quite a lot of code to go through, so we'll walk you thro...
... we then use yet another dom api function called element.setattribute() to set a class attribute on our panel with a value of msgbox.
... this is to make it easier to style the element — if you look at the css on the page, you'll see that we are using a .msgbox class selector to style the message box and its contents.
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Image gallery - Learn web development
the html body looks like this: <h1>image gallery example</h1> <div class="full-img"> <img class="displayed-img" src="images/pic1.jpg"> <div class="overlay"></div> <button class="dark">darken</button> </div> <div class="thumb-bar"> </div> the example looks like this: the most interesting parts of the example's css file: it absolutely positions the three elements inside the full-img <div> — the <img> in which the full-sized image is displayed, an emp...
...you need to add an onclick handler that: checks the current class name set on the <button> — you can again achieve this by using getattribute().
... if the class name is "dark", changes the <button> class to "light" (using setattribute()), its text content to "lighten", and the background-color of the overlay <div> to "rgba(0,0,0,0.5)".
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Making decisions in your code — conditionals - Learn web development
playable code <h2>live output</h2> <div class="output" style="height: 500px;overflow: auto;"> <label for="month">select month: </label> <select id="month"> <option value="january">january</option> <option value="february">february</option> <option value="march">march</option> <option value="april">april</option> <option value="may">may</option> <option value="june">june</option> <option value="july">july</opti...
...on> <option value="august">august</option> <option value="september">september</option> <option value="october">october</option> <option value="november">november</option> <option value="december">december</option> </select> <h1></h1> <ul></ul> </div> <h2>editable code</h2> <p class="a11y-label">press esc to move focus away from the code area (tab inserts a tab character).</p> <textarea id="code" class="playable-code" style="height: 400px;width: 95%"> const select = document.queryselector('select'); const list = document.queryselector('ul'); const h1 = document.queryselector('h1'); select.onchange = function() { const choice = select.value; // add conditional here createcalendar(days, choice); } function createcalendar(days, choice) { list.innerhtml = '...
...'; h1.textcontent = choice; for (let i = 1; i <= days; i++) { const listitem = document.createelement('li'); listitem.textcontent = i; list.appendchild(listitem); } } createcalendar(31,'january'); </textarea> <div class="playable-buttons"> <input id="reset" type="button" value="reset"> <input id="solution" type="button" value="show solution"> </div> .output * { box-sizing: border-box; } .output ul { padding-left: 0; } .output li { display: block; float: left; width: 25%; border: 2px solid white; padding: 5px; height: 40px; background-color: #4a2db6; color: white; } html { font-family: sans-serif; } h2 { font-size: 16px; } .a11y-label { margin: 0; text-align: right; font-size: 0.7rem; width: 98%; } body { margin: 10px; backgroun...
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A first splash into JavaScript - Learn web development
we'll tell you if your guess was too high or too low.</p> <div class="form"> <label for="guessfield">enter a guess: </label><input type="text" id="guessfield" class="guessfield"> <input type="submit" value="submit guess" class="guesssubmit"> </div> <div class="resultparas"> <p class="guesses"></p> <p class="lastresult"></p> <p class="loworhi"></p> </div> <script> // your javascript goes here let randomnumber = math.floor(mat...
... the first three constants are each made to store a reference to the results paragraphs in our html, and are used to insert values into the paragraphs later on in the code (note how they are inside a <div> element, which is itself used to select all three later on for resetting, when we restart the game): <div class="resultparas"> <p class="guesses"></p> <p class="lastresult"></p> <p class="loworhi"></p> </div> the next two constants store references to the form text input and submit button and are used to control submitting the guess later on.
... <label for="guessfield">enter a guess: </label><input type="text" id="guessfield" class="guessfield"> <input type="submit" value="submit guess" class="guesssubmit"> our final two variables store a guess count of 1 (used to keep track of how many guesses the player has had), and a reference to a reset button that doesn't exist yet (but will later).
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Object prototypes - Learn web development
note: this article covers traditional javascript constructors and classes.
... in the next article, we talk about the modern way of doing things, which provides easier syntax to achieve the same things — see ecmascript 2015 classes.
...you can use our oojs-class-further-exercises.html example (see also the source code), if you don't already have it from working through the last article.
...And 2 more matches

Getting started with Ember - Learn web development
a deeper understanding of modern javascript features (such as classes, modules, etc), will be extremely beneficial, as ember makes heavy use of them.
...in particular, javascript classes.
... this is where most of the "framework" parts come into play, as there are superclasses, where each type of thing has a different purpose and different expected location within your project.
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A bird's-eye view of the Mozilla framework
for example, a javascript object or c++ class could both implement the same xpidl interface.
...the client is completely unaware of which c++ class (or other language) actually implements nsirdfnode; it only interacts with the idl interface.
...likewise, an xpcom component must implement nsifactory, which provides a mechanism for creating an object without having access to the class declaration for that object, nsimodule, which provides a mechanism for registering and unregistering the xpcom component, as well as for accessing the underlying class objects implementing the idl interfaces, and nsgetmodule(), the entry point used to load the xpcom component.
...And 2 more matches

Displaying Places information using views
var bmserv = components.classes["@mozilla.org/browser/nav-bookmarks-service;1"].
... getservice(components.interfaces.nsinavbookmarksservice); var histserv = components.classes["@mozilla.org/browser/nav-history-service;1"].
...var bmserv = components.classes["@mozilla.org/browser/nav-bookmarks-service;1"].
...And 2 more matches

Basics
</div> <math class="inputmath" display="block"> <mrow> <mi>a</mi> <mo>=</mo> <mo>[</mo> <mtable> <mtr> <mtd><mn>1</mn></mtd> <mtd> <mtext><input id="input12" value="?" size="1"/></mtext> </mtd> </mtr> <mtr> <mtd> <mtext><input id="input21" value="?" size="1"/></mtext> </mtd> <mtd><mn>4</mn></mtd> </mtr> </mtable> <mo>]</mo> </mrow> </math> <div style="text-align:center"> left size: <a class="control" href="javascri...
...pt:incrementinput('input21', 1);" title="increase input">+</a> <a class="control" href="javascript:incrementinput('input21',-1);" title="decrease input">-</a> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; right size: <a class="control" href="javascript:incrementinput('input12', 1);" title="increase input">+</a> <a class="control" href="javascript:incrementinput('input12',-1);" title="decrease input">-</a> <br/> (click these control buttons to see their effects.) </div> <p> each entry of the following matrix represents <math> <msup><mrow><mo>(</mo><mi>x</mi><mo>+</mo><mi>y</mi><mo>)</mo></mrow><mi>n</mi></msup> </math> for some <i>n</i>.
...mn> </msup> </mrow> <mo>+</mo> <mrow> <mn>5</mn> <mo>&invisibletimes;</mo> <mi>x</mi> <mo>&invisibletimes;</mo> <msup> <mi>y</mi> <mn>4</mn> </msup> </mrow> <mo>+</mo> <msup> <mi>y</mi> <mn>5</mn> </msup> </mrow> </maction> </mtd> </mtr> </mtable> </mtd> </mtr> </mtable> </math> </div> css content .control { text-decoration: none; font-weight: bold; font-size: 200%; } input { color: red; } [class="inputmath"] { border: 1px dotted; } javascript content function setselection(id,value) { document.getelementbyid(id).setattribute("selection",value); } function expand() { setselection("a11","2"); setselection("a12","2"); setselection("a13","2"); setselection("a21","2"); setselection("a22","2"); setselection("a23","2"); setselection("a31","2"); setselection("a32","2"); setselect...
...And 2 more matches

AsyncTestUtils extended framework
synthetic message sets the code that creates synthetic message sets returns instances of the syntheticmessageset class.
... this class not only holds references to the syntheticmessage instances, but it also tracks what folders they were injected into as well as what folders you move them to.
...keep in mind that the class is not magic and will lose track of the message headers if you manipulate them without referencing the message set.
...And 2 more matches

GCIntegration - SpiderMonkey Redirect 1
many pointers in gecko are traced via ns_decl_cycle_collection_script_holder_class and its related macros.
... the js::objectptr class is intended to serve as a drop-in replacement for jsobject *.
...so far, though, there hasn't been much use for this class—there aren't many places outside of spidermonkey where a write barrier is required.
...And 2 more matches

JS::CompileOptions
this article covers features introduced in spidermonkey 17 compile options classes.
... so, we have a class hierarchy that reflects these three use cases: readonlycompileoptions is the common base class.
... the usual compileoptions class must be stack-allocated, and holds non-owning references to the filename, element, and so on.
...And 2 more matches

JS::IdentifyStandardInstance
this article covers features introduced in spidermonkey 31 determine if the given object is an instance/prototype/constructor for a standard class.
... description js::identifystandardinstance determines if the given object is an instance for a standard class.
... js::identifystandardprototype determines if the given object is a prototype for a standard class.
...And 2 more matches

JSObjectOps.newObjectMap
syntax typedef jsobjectmap * (*jsnewobjectmapop)(jscontext *cx, jsrefcount nrefs, jsobjectops *ops, jsclass *clasp, jsobject *obj); name type description cx jscontext * pointer to the js context in which the new object is being created.
... clasp jsclass * the jsclass of the new object.
... description note: the jsapi does not expose the data structure that would be necessary to develop new jsobjectmap subclasses.
...And 2 more matches

JS_GetPrivate
syntax void * js_getprivate(jsobject *obj); name type description obj jsobject * an object whose jsclass has the jsclass_has_private flag.
...obj must be an instance of a class that has the jsclass_has_private flag.
... (but consider using js_valuetofunction instead to access it.) warning: it is dangerous to call js_getprivate on a jsobject * unless the object's jsclass is known.
...And 2 more matches

JS_NewCompartmentAndGlobalObject
syntax jsobject * js_newcompartmentandglobalobject(jscontext *cx, jsclass *clasp, jsprincipals *principals); name type description cx jscontext * the context in which to create the new global object.
... clasp jsclass * the class to use for the new global object.
... clasp->flags must have the jsclass_global_flags bits set.
...And 2 more matches

Generic factory
*/ class nsigenericfactory : public nsifactory { public: static const nsiid& iid() { static nsiid iid = ns_igenericfactory_iid; return iid; } typedef ns_callback(constructorprocptr) (nsisupports *aouter, refnsiid aiid, void **aresult); /** * establishes the generic factory's constructor function, which will be called * by createinstance.
... examples class nsicomponent : public nsisupports { public: ns_imethod dosomething() = 0; }; class mycomponent : public nsicomponent { public: mycomponent(); virtual ~mycomponent(); static ns_method create(nsisupports *aouter, refnsiid aiid, void **aresult); ns_impl_isupports ns_imethod dosomething(); }; to create a factory for this class, simply write the following: nsifactory* newcomponentfa...
...it seems to me that we can cut down on code size (all those queryinterface, addref, release implementations) if we just use the following class for all of the simple factories: // idea: why not create a generic factory facility so we can avoid // duplication of so much nsifactory code?
...And 2 more matches

XPCOM changes in Gecko 2.0
chrome.manifest: # the {classid} here must match the classid in mycomponent.js component {e6b866e3-41b2-4f05-a4d2-3d4bde0f7ef8} components/mycomponent.js contract @foobar/mycomponent;1 {e6b866e3-41b2-4f05-a4d2-3d4bde0f7ef8} category profile-after-change mycomponent @foobar/mycomponent;1 the javascript code no longer exports a nsgetmodule() function.
... it now must export a nsgetfactory() function, which accepts a class id (cid) as a parameter.
... classid: components.id("{e6b866e3-41b2-4f05-a4d2-3d4bde0f7ef8}"), queryinterface: xpcomutils.generateqi([components.interfaces.nsimycomponent]), /* nsimycomponent implementation goes here */ ...
...And 2 more matches

Using XPCOM Components
the snippet in getting the cookiemanager component in javascript shows how the remove() method from the xpcom cookiemanager component can be called from javascript: getting the cookiemanager component in javascript // xpconnect to cookiemanager // get the cookie manager component in javascript var cmgr = components.classes["@mozilla.org/cookiemanager;1"] .getservice(); cmgr = cmgr.queryinterface(components.interfaces.nsicookiemanager); // called as part of a largerdeleteallcookies() function function finalizecookiedeletions() { for (var c=0; c<deletedcookies.length; c++) { cmgr.remove(deletedcookies[c].host, deletedcookies[c].name, deletedcookies[c].path...
... managing cookies from javascript var cmgr = components.classes["@mozilla.org/cookiemanager;1"] .getservice(); cmgr = cmgr.queryinterface(components.interfaces.nsicookiemanager); function loadcookies() { // load cookies into a table var enumerator = cmgr.enumerator; var count = 0; var showpolicyfield = false; while (enumerator.hasmoreelements()) { var nextcookie = enumerator.getnext(); nextcookie = nextcookie.queryint...
... components is the javascript object that controls the connection to components, and classes is an array of all of the classes you can ask for by contract id.
...And 2 more matches

XPCOM hashtable guide
the appropriate hashtable class to use depends solely on the data type.
... data type hashtable class none (for a hash set) nsthashtable simple types (numbers, booleans, etc) nsdatahashtable structs or classes (nsstring, custom defined structs or classes that are not reference-counted) nsclasshashtable reference-counted concrete classes nsrefptrhashtable interface pointers nsinterfacehashtable each of these classes is a template with two parameters.
... key type hashkey class strings nsstringhashkey/nscstringhashkey integers nsuint32hashkey/nsuint64hashkey pointers nsptrhashkey<t> owned interface pointers nsisupportshashkey reference-counted concrete classes nsrefptrhashkey there are a number of more esoteric hashkey classes in nshashkeys.h, and you can always roll your own if none of these fit your needs (make sure you're not duplicating an existing hashkey class though!) once you've determined what hashtable and hashkey classes you need, you can put it all together.
...And 2 more matches

XPCOM guide
ncepts, and second by describing a number of common javascript patterns that cause leaks.creating xpcom componentsthis guide is about gecko, and about creating xpcom components for gecko-based applications.how to build an xpcom component in javascriptif you are looking for add-on sdk solution for xpcom javascript components then check out platform/xpcom module first.inheriting from implementation classesgiven that idl interfaces map to abstract classes in c++, a common problem when dealing with idl is when you have an idl inheritance hierarchy, and a corresponding c++ implementation hierarchy, you run into multiple inheritance.
...however, it may be useful for c++ code in the mozilla platform to run tasks on another thread.mozilla internal string guidemost of the mozilla code uses a c++ class hierarchy to pass string data, rather than using raw pointers.
... this guide documents the string classes which are visible to code within the mozilla codebase (code which is linked into libxul).
...And 2 more matches

nsCString
class declaration this is the canonical null-terminated string class.
... all subclasses promise null-terminated storage.
... instances of this class allocate strings on the heap.
...And 2 more matches

nsDependentCString
class declaration nstdependentstring_chart stores a null-terminated, immutable sequence of characters.
... subclass of nststring that restricts string value to an immutable character sequence.
... this class does not own its data, so the creator of objects of this type must take care to ensure that a nstdependentstring continues to reference valid memory for the duration of its use.
...And 2 more matches

nsDependentString
class declaration nstdependentstring_chart stores a null-terminated, immutable sequence of characters.
... subclass of nststring that restricts string value to an immutable character sequence.
... this class does not own its data, so the creator of objects of this type must take care to ensure that a nstdependentstring continues to reference valid memory for the duration of its use.
...And 2 more matches

nsString
class declaration this is the canonical null-terminated string class.
... all subclasses promise null-terminated storage.
... instances of this class allocate strings on the heap.
...And 2 more matches

nsSupportsWeakReference
« xpcom api reference summary inherit from this c++ class to add canonical support for nsisupportsweakreference.
...#include "nsweakreference.h" class nssupportsweakreference { ...
... }; remarks in addition to inheriting from this class, you will need to ensure that your nsisupports::queryinterface implementation exposes nsisupportsweakreference as a supported interface.
...And 2 more matches

nsIHTMLEditor
; void addinsertionlistener(in nsicontentfilter infilter); void align(in astring aalign); boolean breakisvisible(in nsidomnode anode); boolean candrag(in nsidomevent aevent); void checkselectionstateforanonymousbuttons(in nsiselection aselection); nsidomelement createanonymouselement(in astring atag, in nsidomnode aparentnode, in astring aanonclass, in boolean aiscreatedhidden); nsidomelement createelementwithdefaults(in astring atagname); void decreasefontsize(); void dodrag(in nsidomevent aevent); void getalignment(out boolean amixed, out short aalign); astring getbackgroundcolorstate(out boolean amixed); nsidomelement getelementorparentbytagname(in astring atagname, in nsidomnode anod...
...if aiscreatedhidden is true, the class "hidden" is added to the created element.
... if aanonclass is not the empty string, it becomes the value of the attribute "_moz_anonclass" nsidomelement createanonymouselement( in astring atag, in nsidomnode aparentnode, in astring aanonclass, in boolean aiscreatedhidden ); parameters atag a string representing the desired type of the element to create.
...And 2 more matches

nsIWindowMediator
implemented by: @mozilla.org/appshell/window-mediator;1 as a service: var windowmediator = components.classes["@mozilla.org/appshell/window-mediator;1"] .getservice(components.interfaces.nsiwindowmediator); method overview void addlistener(in nsiwindowmediatorlistener alistener); boolean calculatezposition(in nsixulwindow inwindow, in unsigned long inposition, in nsiwidget inbelow, out unsigned long outposition, out nsiwidget outbelow); native code only!
... var {cc: classes, ci: interfaces} = components; var windowlistener = { onopenwindow: function (awindow) { // wait for the window to finish loading let domwindow = awindow.queryinterface(ci.nsiinterfacerequestor).getinterface(ci.nsidomwindowinternal || ci.nsidomwindow); domwindow.addeventlistener("load", function () { domwindow.removeeventlistener("load", arguments.callee...
... windowmediator = components.classes["@mozilla.org/appshell/window-mediator;1"] .getservice(components.interfaces.nsiwindowmediator); if (!windowmediator.getouterwindowwithid) { windowmediator.getouterwindowwithid = function (aouterwindowid) { let win = this.getmostrecentwindow(); let winutil = win.queryinterface(components.interfaces.nsiinterfacerequestor) .getinterface(components.interfaces.nsidomwind...
...And 2 more matches

Setting HTTP request headers
var httprequestobserver = { observe: function(subject, topic, data) { if (topic == "http-on-modify-request") { var httpchannel = subject.queryinterface(ci.nsihttpchannel); httpchannel.setrequestheader("x-hello", "world", false); } } }; note: the above code was changed to reflect that in a firefox add-on one can not directly access components.interfaces und components.classes anymore but must use the require line introduced to the sample code above.
... so where you see ci and cc in this page there used to be components.interfaces and components.classes.
...var headername = "x-hello"; var headervalue = "world"; function log(text) { // var consoleservice = components.classes["@mozilla.org/consoleservice;1"].getservice(components.interfaces.nsiconsoleservice); // consoleservice.logstringmessage(text); } function myhttplistener() { } myhttplistener.prototype = { observe: function(subject, topic, data) { if (topic == "http-on-modify-request") { log("----------------------------> (" + subject + ") mod request"); var httpchannel...
...And 2 more matches

XPCOM
xpcom itself provides a set of core components and classes, e.g.
... new windowif 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.interfacing with the xpcom cycle collectorthis is a quick overview of the cycle collector introduced into xpcom for firefox 3, including a description of the steps involved in modifying an existing c++ class to participate in xpcom cycle collection.
... if you have a class that you think is involved in a cyclical-ownership leak, this page is for you.introduction to xpcom for the domwarning: this document has not yet been reviewed by the dom gurus, it might contain some errors.language bindingsan xpcom language binding is a bridge between a particular language and xpcom to provide access to xpcom objects from that language, and to let modules written in that language be used as xpcom objects by all other languages for which there are xpcom bindings.monitoring http activitygecko includes the nsihttpactivityobserver interface, which you can implement in your code to monitor http transactions in real time, receiving a callback as the transactions take place.nscomptr versus refptrgecko code uses both nscomptr and refptr as smart pointers.
...And 2 more matches

AudioWorkletGlobalScope - Web APIs
the audioworkletglobalscope interface of the web audio api represents a global execution context for user-supplied code, which defines custom audioworkletprocessor-derived classes.
... as the global execution context is shared across the current baseaudiocontext, it's possible to define any other variables and perform any actions allowed in worklets — apart from defining audioworkletprocessor-derived classes.
... methods registerprocessor() registers a class derived from the audioworkletprocessor interface.
...And 2 more matches

Using the CSS Typed Object Model - Web APIs
csskeywordvalue is a class that defines keywords like inherit, initial, unset, and other strings you don't quote, such as auto and grid.
... this subclass gives you a value property via csskeywordvalue.value.
...it is a class that defines numbers with units of measurement like 20px, 40%, 200ms, or 7.
...And 2 more matches

Element.querySelectorAll() - Web APIs
examples dataset selector & attribute selectors <section class="box" id="sect1"> <div class="funnel-chart-percent1">10.900%</div> <div class="funnel-chart-percent2">3700.00%</div> <div class="funnel-chart-percent3">0.00%</div> </section> // dataset selectors const refs = [...document.queryselectorall(`[data-name*="funnel-chart-percent"]`)]; // attribute selectors // const refs = [...document.queryselectorall(`[class*="funnel-chart-percent"]`)]; // c...
...onst refs = [...document.queryselectorall(`[class^="funnel-chart-percent"]`)]; // const refs = [...document.queryselectorall(`[class$="funnel-chart-percent"]`)]; // const refs = [...document.queryselectorall(`[class~="funnel-chart-percent"]`)]; obtaining a list of matches to obtain a nodelist of all of the <p> elements contained within the element "mybox": var matches = mybox.queryselectorall("p"); this example returns a list of all <div> elements within "mybox" with a class of either "note" or "alert": var matches = mybox.queryselectorall("div.note, div.alert"); here, we get a list of the document's <p> elements whose immediate parent element is a div with the class "highlighted" and which are located inside a container whose id is "test".
... <div class="outer"> <div class="select"> <div class="inner"> </div> </div> </div> javascript var select = document.queryselector('.select'); var inner = select.queryselectorall('.outer .inner'); inner.length; // 1, not 0!
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EventTarget.addEventListener() - Web APIs
example of options usage html <div class="outer"> outer, once & none-once <div class="middle" target="_blank"> middle, capture & none-capture <a class="inner1" href="https://www.mozilla.org" target="_blank"> inner1, passive & preventdefault(which is not allowed) </a> <a class="inner2" href="https://developer.mozilla.org/" target="_blank"> inner2, none-passive & preventdefault(not open new page) </a> ...
... my_element.addeventlistener('click', function (e) { console.log(this.classname) // logs the classname of my_element console.log(e.currenttarget === this) // logs `true` }) as a reminder, arrow functions do not have their own this context.
... my_element.addeventlistener('click', (e) => { console.log(this.classname) // warning: `this` is not `my_element` console.log(e.currenttarget === this) // logs `false` }) if an event handler (for example, onclick) is specified on an element in the html source, the javascript code in the attribute value is effectively wrapped in a handler function that binds the value of this in a manner consistent with the addeventlistener(); an occurrence of this within the code represents a reference to the element.
...And 2 more matches

PaintWorklet.registerPaint - Web APIs
the paintworklet.registerpaint() method of the paintworklet interface registers a class programmatically generate an image where a css property expects a file.
... syntax registerpaint(name, class); parameters name the name of the worklet class to register.
... class a reference to the class that implements the worklet.
...And 2 more matches

USBDevice - Web APIs
usbdevice.deviceclass read only one of three properties that identify usb devices for the purpose of loading a usb driver that will work with that device.
... the other two properties are usbdevice.devicesubclass and usbdevice.deviceprotocol.
...the other two properties are usbdevice.deviceclass and usbdevice.devicesubclass.
...And 2 more matches

WebGLRenderingContext.makeXRCompatible() - Web APIs
html the html for the buttons looks lke this: <button class="green button" type="button">start game</button> <button class="blue button use-webxr" type="button">start game (vr mode)</button> the first button starts the game, continuing to present the game onscreen as usual.
...note the inclusion of a use-webxr class on the vr mode button.
...plemessagebox("unable to transfer the game to your xr headset.", "cancel"); break; case invalidstateerror: showsimplemessagebox("you don't appear to have a compatible xr headset available.", "cancel"); break; default: handlefatalerror(err); break; } xrsession.end(); } } async function handlestartbuttonclick(event) { if (event.target.classlist.contains("use-webxr") && navigator.xr) { try { xrsession = await navigator.xr.requestsession("immersive-vr"); usingxr = true; } catch(err) { xrsession = null; usingxr = false; } } startgame(); } function startgame() { currentscene = "scene1"; loadsceneresources(currentscene); /* and so on */ } this works by having two buttons, one which starts...
...And 2 more matches

Writing a WebSocket server in C# - Web APIs
luckily, c# has a tcplistener class which does as the name suggests.
...it allows usage of a namespace's classes without typing the full namespace every time.
... here's a barebones server implementation: ​using system.net.sockets; using system.net; using system; class server { public static void main() { tcplistener server = new tcplistener(ipaddress.parse("127.0.0.1"), 80); server.start(); console.writeline("server has started on 127.0.0.1:80.{0}waiting for a connection...", environment.newline); tcpclient client = server.accepttcpclient(); console.writeline("a client connected."); } } tcpclient methods: ...
...And 2 more matches

::after (:after) - CSS: Cascading Style Sheets
syntax /* css3 syntax */ ::after /* css2 syntax */ :after note: css3 introduced the ::after notation (with two colons) to distinguish pseudo-classes from pseudo-elements.
... examples simple usage let's create two classes: one for boring paragraphs and one for exciting ones.
... we can use these classes to add pseudo-elements to the end of paragraphs.
...And 2 more matches

:active - CSS: Cascading Style Sheets
the :active css pseudo-class represents an element (such as a button) that is being activated by the user.
... /* selects any <a> that is being activated */ a:active { color: red; } the :active pseudo-class is commonly used on <a> and <button> elements.
... other common targets of this pseudo-class include elements that contain an activated element, and form elements that are being activated through their associated <label>.
...And 2 more matches

:has() - CSS: Cascading Style Sheets
the :has() css pseudo-class represents an element if any of the selectors passed as parameters (relative to the :scope of the given element) match at least one element.
...<subclass-selector>* [ <pseudo-element-selector> <pseudo-class-selector>* ]* ]!where <type-selector> = <wq-name> | <ns-prefix>?
... '*'<subclass-selector> = <id-selector> | <class-selector> | <attribute-selector> | <pseudo-class-selector><pseudo-element-selector> = ':' <pseudo-class-selector><pseudo-class-selector> = ':' <ident-token> | ':' <function-token> <any-value> ')'where <wq-name> = <ns-prefix>?
...And 2 more matches

:scope - CSS: Cascading Style Sheets
the :scope css pseudo-class represents elements that are a reference point for selectors to match against.
... syntax :scope examples identity match in this simple example, we demonstrate that using the :scope pseudo-class from the element.matches() method matches the element on which it's called.
...</p> <p id="output"></p> result direct children a situation where the :scope pseudo-class prove to be useful is when you need to get direct descendant of an already retrieved element.
...And 2 more matches

CSS reference - CSS: Cascading Style Sheets
use this css reference to browse an alphabetical index of all of the standard css properties, pseudo-classes, pseudo-elements, data types, and at-rules.
...where : selectors-list ::= selector[:pseudo-class] [::pseudo-element] [, selectors-list] properties-list ::= [property : value] [; properties-list] see the index of selectors, pseudo-classes, and pseudo-elements below.
... universal selector *, ns|*, *|*, |* type selector elementname class selector .classname id selector #idname attribute selector [attr=value] grouping selectors selector list a, b specifies that both a and b elements are selected.
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clear - CSS: Cascading Style Sheets
formal definition initial valuenoneapplies toblock-level elementsinheritednocomputed valueas specifiedanimation typediscrete formal syntax none | left | right | both | inline-start | inline-end examples clear: left html <div class="wrapper"> <p class="black">lorem ipsum dolor sit amet, consectetuer adipiscing elit.
...suspendisse eget dolor.</p> <p class="red">lorem ipsum dolor sit amet, consectetuer adipiscing elit.</p> <p class="left">this paragraph clears left.</p> </div> css .wrapper{ border:1px solid black; padding:10px; } .left { border: 1px solid black; clear: left; } .black { float: left; margin: 0; background-color: black; color: #fff; width: 20%; } .red { float: left; margin: 0; background-color: pink; width:20%; } p { width: 50%; } clear: right html <div class="wrapper"> <p class="black">lorem ipsum dolor sit amet, consectetuer adipiscing elit.
...suspendisse eget dolor.</p> <p class="red">lorem ipsum dolor sit amet, consectetuer adipiscing elit.</p> <p class="right">this paragraph clears right.</p> </div> css .wrapper{ border:1px solid black; padding:10px; } .right { border: 1px solid black; clear: right; } .black { float: right; margin: 0; background-color: black; color: #fff; width:20%; } .red { float: right; margin: 0; background-color: pink; width:20%; } p { width: 50%; } clear: both html <div class="wrapper"> <p class="black">lorem ipsum dolor sit amet, consectetuer adipiscing elit.
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perspective - CSS: Cascading Style Sheets
<table> <tbody> <tr> <th><code>perspective: 250px;</code> </th> <th><code>perspective: 350px;</code> </th> </tr> <tr> <td> <div class="container"> <div class="cube pers250"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div class="face bottom">6</div> </div> </div> </td> <td> <div class="container"> ...
... <div class="cube pers350"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div class="face bottom">6</div> </div> </div> </td> </tr> <tr> <th><code>perspective: 500px;</code> </th> <th><code>perspective: 650px;</code> </th> </tr> <tr> <td> <div class="container"> <div class="cube pers500"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div cla...
...ss="face bottom">6</div> </div> </div> </td> <td> <div class="container"> <div class="cube pers650"> <div class="face front">1</div> <div class="face back">2</div> <div class="face right">3</div> <div class="face left">4</div> <div class="face top">5</div> <div class="face bottom">6</div> </div> </div> </td> </tr> </tbody> </table> css the css establishes classes that can be used to set the perspective to different distances.
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scroll-snap-stop - CSS: Cascading Style Sheets
: 64px; width: 100%; height: 128px; } .y.container > div { line-height: 256px; font-size: 128px; width: 256px; height: 256px; } /* appearance fixes */ .y.container > div:first-child { line-height: 1.3; font-size: 64px; } /* coloration */ .container > div:nth-child(even) { background-color: #87ea87; } .container > div:nth-child(odd) { background-color: #87ccea; } html <div class="container x mandatory-scroll-snapping" dir="ltr"> <div>x mand.
... ltr </div> <div>2</div> <div>3</div> <div>4</div> <div>5</div> </div> <div class="container x proximity-scroll-snapping" dir="ltr"> <div>x proximity ltr</div> <div>2</div> <div>3</div> <div>4</div> <div>5</div> </div> <div class="container y mandatory-scroll-snapping" dir="ltr"> <div>y mand.
... ltr</div> <div>2</div> <div>3</div> <div>4</div> <div>5</div> </div> <div class="container y proximity-scroll-snapping" dir="ltr"> <div>y prox.
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text-justify - CSS: Cascading Style Sheets
formal definition initial valueautoapplies toinline-level and table-cell elementsinheritedyescomputed valueas specifiedanimation typediscrete formal syntax auto | inter-character | inter-word | none examples <p class="none"><code>text-justify: none</code> —<br>lorem ipsum dolor sit amet, consectetur adipiscing elit.
...cras eu elementum dui.</p> <p class="auto"><code>text-justify: auto</code> —<br>lorem ipsum dolor sit amet, consectetur adipiscing elit.
...cras eu elementum dui.</p> <p class="dist"><code>text-justify: distribute</code> —<br>lorem ipsum dolor sit amet, consectetur adipiscing elit.
...And 2 more matches

transform-origin - CSS: Cascading Style Sheets
ercentageanimation typesimple list of length, percentage, or calc formal syntax [ <length-percentage> | left | center | right | top | bottom ] | [ [ <length-percentage> | left | center | right ] && [ <length-percentage> | top | center | bottom ] ] <length>?where <length-percentage> = <length> | <percentage> examples code sample transform: none; <div class="box1">&nbsp;</div> .box1 { margin: 0.5em; width: 3em; height: 3em; border: solid 1px; background-color: palegreen; transform: none; -webkit-transform: none; } transform: rotate(30deg); <div class="box2">&nbsp;</div> .box2 { margin: 0.5em; width: 3em; height: 3em; border: solid 1px; background-color: palegreen; transform: rotate(30deg)...
...; -webkit-transform: rotate(30deg); } transform: rotate(30deg); transform-origin: 0 0; <div class="box3">&nbsp;</div> .box3 { margin: 0.5em; width: 3em; height: 3em; border: solid 1px; background-color: palegreen; transform-origin: 0 0; -webkit-transform-origin: 0 0; transform: rotate(30deg); -webkit-transform: rotate(30deg); } transform: rotate(30deg); transform-origin: 100% 100%; <div class="box4">&nbsp;</div> .box4 { margin: 0.5em; width: 3em; height: 3em; border: solid 1px; background-color: palegreen; transform-origin: 100% 100%; -webkit-transform-origin: 100% 100%; transform: rotate(30deg); -webkit-transform: rotate(30deg); } transform: rota...
...te(30deg); transform-origin: -1em -3em; <div class="box5">&nbsp;</div> .box5 { margin: 0.5em; width: 3em; height: 3em; border: solid 1px; background-color: palegreen; transform-origin: -1em -3em; -webkit-transform-origin: -1em -3em; transform: rotate(30deg); -webkit-transform: rotate(30deg); } transform: scale(1.7); <div class="box6">&nbsp;</div> .box6 { margin: 0.5em; width: 3em; height: 3em; border: solid 1px; background-color: palegreen; transform: scale(1.7); -webkit-transform: scale(1.7); } transform: scale(1.7); transform-origin: 0 0; <div class="box7">&nbsp;</div> .box7 { margin: 0.5em; width: 3em; height: 3em; border: solid 1px; background-colo...
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transition-delay - CSS: Cascading Style Sheets
formal definition initial value0sapplies toall elements, ::before and ::after pseudo-elementsinheritednocomputed valueas specifiedanimation typediscrete formal syntax <time># examples transition-delay: 0.5s <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 left top color; -webkit-transition-duration:2s; -webkit-transition-delay:0.5s; ...
...lor; -webkit-transition-duration:2s; -webkit-transition-delay:0.5s; -webkit-transition-timing-function: linear; transition-property: width height background-color font-size left top color; transition-duration:2s; transition-delay:0.5s; transition-timing-function: linear; } 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-delay: 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: 20...
...p color; -webkit-transition-duration:2s; -webkit-transition-delay:1s; -webkit-transition-timing-function: linear; transition-property: width height background-color font-size left top color; transition-duration:2s; transition-delay:1s; transition-timing-function: linear; } 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-delay: 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: 20...
...And 2 more matches

transition-duration - CSS: Cascading Style Sheets
formal definition initial value0sapplies toall elements, ::before and ::after pseudo-elementsinheritednocomputed valueas specifiedanimation typediscrete formal syntax <time># examples transition-duration: 0.5s <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 left top transform -webkit-transform color; -webkit-transition-duration:0.5s; -webk...
...webkit-transform color; -webkit-transition-duration:0.5s; -webkit-transition-timing-function: ease-in-out; transition-property: width 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:...
...t-transform transform color; -webkit-transition-duration:1s; -webkit-transition-timing-function: ease-in-out; transition-property: 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:...
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Video player styling basics - Developer guides
the markup for the custom controls now looks as follows: <div id="video-controls" class="controls" data-state="hidden"> <button id="playpause" type="button" data-state="play">play/pause</button> <button id="stop" type="button" data-state="stop">stop</button> <div class="progress"> <progress id="progress" value="0" min="0"> <span id="progress-bar"></span> </progress> </div> <button id="mute" type="button" data-state="mute">mute/unmute</button> <...
...{ max-width:64rem; width:100%; max-height:30.875rem; height:100%; margin:1.25rem auto; padding:1.051%; background-color:#666; } the video controls container itself also needs some styling so that it is set up the correct way: .controls { width:100%; height:8.0971659919028340080971659919028%; /* of figure's height */ position:relative; } the height of the .controls class is set to be (a very precise!) percentage of the enclosing <figure> element (this was worked out with experimentation based on the required button height).
... as mentioned in the previous article, there is a fallback provided for browsers that do not support the <progress> element; this also needs to be styled appropriately: .controls progress[data-state="fake"] { background:#e6e6e6; height:65%; } .controls progress span { width:0%; height:100%; display:inline-block; background-color:#2a84cd; } a .data-state class is also used here when a <progress> element is being "faked"; when it's in this state the background colour needs to be set.
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Constraint validation - Developer guides
(this is typically done by the user-agent when determining which of the css pseudo-classes, :valid or :invalid, applies.) in contrast, the reportvalidity() method reports any constraint failures to the user.
... controlling the look of elements the look of elements can be controlled via css pseudo-classes.
... :required and :optional css pseudo-classes the :required and :optional pseudo-classes allow writing selectors that match form elements that have the required attribute, or that don't have it.
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disabled - HTML: Hypertext Markup Language
when a supporting element has the disabled attribute applied, the :disabled pseudo-class also applies to it.
... conversely, elements that support the disabled attribute but don't have the attribute set match the :enabled pseudo-class.
... if present on a supporting elements, the :disabled pseudo class will match.
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<applet>: The Embed Java Applet element - HTML: Hypertext Markup Language
archive this attribute refers to an archived or compressed version of the applet and its associated class files, which might help reduce download time.
... code this attribute specifies the url of the applet's class file to be loaded and executed.
... applet filenames are identified by a .class filename extension.
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<input>: The Input (Form Input) element - HTML: Hypertext Markup Language
for 4.2 to be valid, step would have had to be set to any, 0.1, 0.2, or any the min value would have had to be a number ending in .2, such as <input type="number" min="-5.2"> note: when the data entered by the user doesn't adhere to the stepping configuration, the value is considered invalid in contraint validation and will match the :invalid pseudoclass.
...there are css selectors that can specification target form controls based on their ui features, also known as ui pseudo-classes.
... ui pseudo-classes captions super relevant to the <input> element: pseudo-class description :enabled any currently enabled element that can be activated (selected, clicked on, typed into, etc.) or accept focus and also has a disabled state, in which it can't be activated or accept focus.
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Global attributes - HTML: Hypertext Markup Language
ave the following values: off or none, no autocapitalization is applied (all letters default to lowercase) on or sentences, the first letter of each sentence defaults to a capital letter; all other letters default to lowercase words, the first letter of each word defaults to a capital letter; all other letters default to lowercase characters, all letters should default to uppercase class a space-separated list of the classes of the element.
... classes allows css and javascript to select and access specific elements via the class selectors or functions like the method document.getelementsbyclassname().
... data-* forms a class of attributes, called custom data attributes, that allow proprietary information to be exchanged between the html and its dom representation that may be used by scripts.
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Object.create() - JavaScript
s implementation of object.create is a shim and doesn't support 'null' as the first argument."); } if (typeof propertiesobject != 'undefined') { throw new error("this browser's implementation of object.create is a shim and doesn't support a second argument."); } function f() {} f.prototype = proto; return new f(); }; } examples classical inheritance with object.create() below is an example of how to use object.create() to achieve classical inheritance.
... // shape - superclass function shape() { this.x = 0; this.y = 0; } // superclass method shape.prototype.move = function(x, y) { this.x += x; this.y += y; console.info('shape moved.'); }; // rectangle - subclass function rectangle() { shape.call(this); // call super constructor.
... } // subclass extends superclass rectangle.prototype = object.create(shape.prototype); //if you don't set rectangle.prototype.constructor to rectangle, //it will take the prototype.constructor of shape (parent).
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Reflect.construct() - JavaScript
function oneclass() { this.name = 'one' } function otherclass() { this.name = 'other' } // calling this: let obj1 = reflect.construct(oneclass, args, otherclass) // ...has the same result as this: let obj2 = object.create(otherclass.prototype) oneclass.apply(obj2, args) console.log(obj1.name) // 'one' console.log(obj2.name) // 'one' console.log(obj1 instanceof oneclass) // false console.log(obj2 in...
...stanceof oneclass) // false console.log(obj1 instanceof otherclass) // true console.log(obj2 instanceof otherclass) // true //another example to demonstrate below: function func1(a, b, c, d) { console.log(arguments[3]); } function func2(d, e, f, g) { consol.log(arguments[3]); } let obj1 = reflect.construct(func1, ['i', 'love', 'my', 'india']) obj1 however, while the end result is the same, there is one important difference in the process.
... function oneclass() { console.log('oneclass') console.log(new.target) } function otherclass() { console.log('otherclass') console.log(new.target) } let obj1 = reflect.construct(oneclass, args) // output: // oneclass // function oneclass { ...
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new.target - JavaScript
in class constructors, it refers to the constructed class.
... function foo() { if (!new.target) { throw 'foo() must be called with new' } console.log('foo instantiated with new') } new foo() // logs "foo instantiated with new" foo() // throws "foo() must be called with new" new.target in constructors in class constructors, new.target refers to the constructor that was directly invoked by new.
... this is also the case if the constructor is in a parent class and was delegated from a child constructor.
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Specification Deviations - SVG: Scalable Vector Graphics
the 'class' and 'style' attributes unlike html and mathml, the svg specification does not specify the 'style' and 'class' attributes on all svg elements.
... nevertheless, to allow mozilla to more cleanly share internal 'class' and 'style' related code, we will implement these attributes on all svg elements as of firefox 3.
... in general this change will not be visible to svg authors (the elements for which the svg specification does not define the 'class' and 'style' attribute are elements that are not displayed directly).
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Using templates and slots - Web Components
we'll call it <my-paragraph>: customelements.define('my-paragraph', class extends htmlelement { constructor() { super(); let template = document.getelementbyid('my-paragraph'); let templatecontent = template.content; const shadowroot = this.attachshadow({mode: 'open'}) .appendchild(templatecontent.clonenode(true)); } } ); the key point to note here is that we append a clone of the template content to the shadow root, created ...
...weight: bold; color: #217ac0; font-size: 120%} h4 { margin: 10px 0 -8px 0; } h4 span { background: #217ac0; padding: 2px 6px 2px 6px } h4 span { border: 1px solid #cee9f9; border-radius: 4px } h4 span { color: white } .attributes { margin-left: 22px; font-size: 90% } .attributes p { margin-left: 16px; font-style: italic } </style> <details> <summary> <span> <code class="name">&lt;<slot name="element-name">need name</slot>&gt;</code> <i class="desc"><slot name="description">need description</slot></i> </span> </summary> <div class="attributes"> <h4><span>attributes</span></h4> <slot name="attributes"><p>none</p></slot> </div> </details> <hr> </template> that <template> element has several features: the <template> ha...
... customelements.define('element-details', class extends htmlelement { constructor() { super(); const template = document .getelementbyid('element-details-template') .content; const shadowroot = this.attachshadow({mode: 'open'}) .appendchild(template.clonenode(true)); } } ); using the <element-details> custom element with named slots now let’s take that <element-details> element and actua...
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JS XPCOM - Archive of obsolete content
for example, var nsfile = components.constructor("@mozilla.org/file/local;1", "nsifile", "initwithpath"); var file = new nsfile(filepath); they can also be created and initialized manually: var file = components.classes["@mozilla.org/file/local;1"] .createinstance(components.interfaces.nsifile); file.initwithpath(filepath); this creates a new instance of the object with contract id @mozilla.org/file/local;1 and allows you to call methods from the nsifile interface on it.
... getting an xpcom service var preferences = components.classes["@mozilla.org/preferences-service;1"] .getservice(components.interfaces.nsiprefservice); you can then call any methods in the nsiprefservice interface on the preferences object.
... components.utils.import("resource://gre/modules/services.jsm"); components.utils.import("resource://gre/modules/xpcomutils.jsm"); const cc = components.classes; const ci = components.interfaces; function abouthandler() {} abouthandler.prototype = { newchannel: function(uri) { var channel = services.io.newchannel("chrome://mystuff/content/mystuff.xul", null, null); channel.originaluri = uri; return channel; }, geturiflags: function(uri) { // do not return ci.nsiaboutmodule.uri_safe_for_untrusted_content unle...
... return 0; }, classdescription: "about mystuff page", classid: components.id("xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"), contractid: "@mozilla.org/network/protocol/about;1?what=mystuff", queryinterface: xpcomutils.generateqi([ci.nsiaboutmodule]) } var nsgetmodule = xpcomutils.generatensgetmodule([abouthandler]); } ...

Creating custom Firefox extensions with the Mozilla build system - Archive of obsolete content
for our simple extension example, this file might look something like this: myextension.jar: % content myextension %content/ % locale myextension en-us %locale/ % skin myextension classic/1.0 %skin/classic/ % overlay chrome://browser/content/browser.xul chrome://myextension/content/myextensionoverlay.xul content/myextensionoverlay.js (content/myextensionoverlay.js) content/myextensionoverlay.xul (content/myextensionoverlay.xul) locale/myextension.dtd (locale/myextension.dtd) locale/myextension.properties (locale/myextension.properties)...
... skin/classic/myextension.css (skin/classic/myextension.css) place this code in a file called jar.mn in the root directory of your extension, making sure that the paths in parentheses point to actual files (when interpreted relative to the root directory).
...your complete directory structure will look something like this: myextension/ base/ public/ src/ advanced/ content/ locale/ en-us/ ...other locales.../ public/ skin/ classic/ ...other skins.../ src/ other than that, nothing really changes.
...here's an example, showing just the advanced/ subbranch of the myextension/ directory: advanced/ build/ intricate/ public/ src/ multifarious/ public/ src/ content/ locale/ en-us/ ...other locales.../ skin/ classic/ ...other skins.../ as you can see, we've split advanced/ into two submodules: intricate/ and multifarious/, and we've added an additional build/ subdirectory.

Custom about: URLs - Archive of obsolete content
const {classes: cc, interfaces: ci, manager: cm, results: cr, utils: cu, constructor: cc} = components; cm.queryinterface(ci.nsicomponentregistrar); components.utils.import("resource://gre/modules/services.jsm"); // globals const aboutpage_description = 'this is my custom about page'; const aboutpage_id = 'aa132730-2278-11e5-867f-0800200c9a66'; // make sure you generate a unique id from https://www.famkruit...
...hof.net/uuid/uuidgen const aboutpage_word = 'myaboutpage' const aboutpage_uri = 'data:text/html,hi this is the page that is shown when navigate to about:myaboutpage'; // const aboutpage_uri = 'chrome://myaboutaddon/content/index.html'; class aboutpage { static get classid() { return components.id(`{${aboutpage_id}}`); } static get classdescription() { return aboutpage_description; } static get contractid() { return `@mozilla.org/network/protocol/about;1?what=${aboutpage_word}`; } static get queryinterface() { return xpcomutils.generateqi([ci.nsiaboutmodule]); } constructor() { object.freeze(this); } geturiflags(auri) { return ci.nsiaboutmodule.allow_script; } newchannel(auri, asecurity_or_aloadinfo) { let channel; if (services.vc.compare(services.appinfo.v...
...*') > 0) { const uri = services.io.newuri(aboutpage_uri, null, null); // greater than or equal to firefox48 so asecurity_or_aloadinfo is aloadinfo channel = services.io.newchannelfromuriwithloadinfo(uri, asecurity_or_aloadinfo); } else { channel = services.io.newchannel(aboutpage_uri, null, null); } channel.originaluri = auri; return channel; } } class factory { constructor(component) { this.component = component; this.register(); object.freeze(this); } createinstance(outer, iid) { if (outer) { throw cr.ns_error_no_aggregation; } return new this.component(); } register() { cm.registerfactory(this.component.classid, this.component.classdescription, this.c...
...omponent.contractid, this); } unregister() { cm.unregisterfactory(this.component.prototype.classid, this); } } instantiation firefox 4+ now in the startup procedure of your bootstrapped addon make sure to do register the factory, for example: let factory; function startup(adata, areason) { // ...

Adding Toolbars and Toolbar Buttons - Archive of obsolete content
<overlay id="xulschoolhello-browser-overlay" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <toolbarpalette id="browsertoolbarpalette"> <toolbarbutton id="xulschoolhello-hello-world-button" class="toolbarbutton-1 chromeclass-toolbar-additional" label="&xulschoolhello.helloworld.label;" tooltiptext="&xulschoolhello.helloworld.tooltip;" oncommand="xulschoolchrome.browseroverlay.dosomething(event);" /> <!-- more buttons here.
... you can have a different skin directory for each operating system using manifest flags in the chrome.manifest file: skin xulschoolhello classic/1.0 skin/unix/ skin xulschoolhello classic/1.0 skin/win/ os=winnt skin xulschoolhello classic/1.0 skin/mac/ os=darwin the osversion flag can be used in case we wanted to have different icons for mac os x lion and above, and others for older systems.
... skin xulschoolhello classic/1.0 skin/all/ skin xulschoolhello-os classic/1.0 skin/unix/ skin xulschoolhello-os classic/1.0 skin/win/ os=winnt skin xulschoolhello-os classic/1.0 skin/mac/ os=darwin all we did here is add a new entry for "common" styles that points to the all directory.
...this assumes that you've set the class xs-hw-toolbarbutton to all of your buttons.

Observer Notifications - Archive of obsolete content
let observerservice = components.classes["@mozilla.org/observer-service;1"].
... */ notifytest : function() { let observerservice = components.classes["@mozilla.org/observer-service;1"].
... getservice(components.interfaces.nsiobserverservice); let subject = components.classes["@mozilla.org/supports-string;1"].
... */ init : function() { this._observerservice = components.classes["@mozilla.org/observer-service;1"].