Index
24 js::autosaveexceptionstate jsapi reference, reference, référence(2), spidermonkey js::autosaveexceptionstate saves and later restores the current exception state of a given jscontext.
... 99 jsexceptionstate jsapi reference, spidermonkey a jsexceptionstate object is returned by the js_saveexceptionstate function, and is passed to functions js_restoreexceptionstate and js_dropexceptionstate.
...passing nullptr restores the default behaviour.
...And 3 more matches

Web Replay
the rewind infrastructure allows a replaying process to restore a previous state, while still maintaining communication with the chrome process.
... the dirty memory information computed since the last snapshot was taken is used to restore the heap to the state at that last snapshot, and then the memory diffs can be used to restore an earlier snapshot if necessary.
... threads are individually responsible for restoring their stacks; when they wake up from the idle state they see the main thread has prepared a new stack to restore to, so they longjmp to the new register state and copy in the new stack's contents.
...And 3 more matches

nsIPlacesImportExportService
"bookmarks-restore-begin" is fired just before the import is started.
... "bookmarks-restore-success" is fired right after the bookmarks are successfully imported.
... "bookmarks-restore-failed" is fired right after a failure occurs when importing the bookmarks.
...And 3 more matches

Drawing and Event Handling - Plugins
note: when a plug-in is drawn to a window, the plug-in is responsible for preserving state information and ensuring that the original state is restored.
... however, for the plug-in to draw at any other time, for example, to highlight on a mouse-down event or draw animation at idle time, it must save the current setting of the port, set up its drawing environment as appropriate, draw, and then restore the port to the previous settings.
... in this case, the plug-in makes it unnecessary for the browser to save and restore its port settings before and after every call into the plug-in.
...And 3 more matches

Profile Manager
this is the easiest way to backup and restore profiles.
... the profile will be backed up, and the backup will appear under the backups column in the main display: to restore a profile: select the backup in the main display, open the context menu, and choose "restore".
... when you restore a profile, the backup is retained, so you can restore from the same backup at a later date.
...And 2 more matches

Components.utils.unwaiveXrays
it can then use unwaivexrays to restore its xray vision for the object.
...the unwaivexrays operation undoes the operation, so xray vision is restored transitively as well.
... syntax xray = components.utils.unwaivexrays(obj); parameters obj the object for which we wish to restore xrays.
...And 2 more matches

Basic animations - Web APIs
restore the canvas state if you've saved the state, restore it before drawing a new frame.
....rotate(((2 * math.pi) / 60) * time.getseconds() + ((2 * math.pi) / 60000) * time.getmilliseconds()); ctx.translate(105, 0); ctx.fillrect(0, -12, 40, 24); // shadow ctx.drawimage(earth, -12, -12); // moon ctx.save(); ctx.rotate(((2 * math.pi) / 6) * time.getseconds() + ((2 * math.pi) / 6000) * time.getmilliseconds()); ctx.translate(0, 28.5); ctx.drawimage(moon, -3.5, -3.5); ctx.restore(); ctx.restore(); ctx.beginpath(); ctx.arc(150, 150, 105, 0, math.pi * 2, false); // earth orbit ctx.stroke(); ctx.drawimage(sun, 0, 0, 300, 300); window.requestanimationframe(draw); } init(); <canvas id="canvas" width="300" height="300"></canvas> screenshotlive sample an animated clock this example draws an animated clock, showing your current time.
... ctx.clearrect(0, 0, 150, 150); ctx.translate(75, 75); ctx.scale(0.4, 0.4); ctx.rotate(-math.pi / 2); ctx.strokestyle = 'black'; ctx.fillstyle = 'white'; ctx.linewidth = 8; ctx.linecap = 'round'; // hour marks ctx.save(); for (var i = 0; i < 12; i++) { ctx.beginpath(); ctx.rotate(math.pi / 6); ctx.moveto(100, 0); ctx.lineto(120, 0); ctx.stroke(); } ctx.restore(); // minute marks ctx.save(); ctx.linewidth = 5; for (i = 0; i < 60; i++) { if (i % 5!= 0) { ctx.beginpath(); ctx.moveto(117, 0); ctx.lineto(120, 0); ctx.stroke(); } ctx.rotate(math.pi / 30); } ctx.restore(); var sec = now.getseconds(); var min = now.getminutes(); var hr = now.gethours(); hr = hr >= 12 ?
...And 2 more matches

Index - Web APIs
592 canvasrenderingcontext2d.restore() api, canvas, canvasrenderingcontext2d, method, reference the canvasrenderingcontext2d.restore() method of the canvas 2d api restores the most recently saved canvas state by popping the top entry in the drawing state stack.
... 1594 htmlcanvaselement: webglcontextlost event event, reference, webgl with the help of the webgl_lose_context extension, you can simulate the webglcontextlost event: 1595 htmlcanvaselement: webglcontextrestored event webgl with the help of the webgl_lose_context extension, you can simulate the webglcontextrestored event: 1596 htmlcollection api, dom, dom reference, element lists, html dom, htmlcollection, interface, reference the htmlcollection interface represents a generic collection (array-like object similar to arguments) of elements (in document order) and offers met...
... 1678 htmlformelement.reset() api, html dom, htmlformelement, method, needsmarkupwork, needsspectable, reference the htmlformelement.reset() method restores a form element's default values.
...And 2 more matches

Index - Archive of obsolete content
297 session store api add-ons, extensions, firefox, guide, obsolete session store makes it possible for extensions to easily save and restore data across firefox sessions.
... 959 norestorefocus no summary!
... 1068 sizemode xul attributes, xul reference this attribute is used to save and restore the state of a window (together with the persist attribute) and for css styles (e.g.
... 3695 npsaveddata npapi, plugins block of instance information saved after the plug-in instance is deleted; can be returned to the plug-in to restore the data in future instances of the plug-in.

Performance
key points to keep in mind scripts registered during addon startup get executed during session restore.
... frame scripts also get executed on non-restored tabs.
... delaying the script registration until the session is restored my provide some middle ground for some addons.
...urces://my-addon/framescript.js"); services.ppmm.removedelayedprocessscript("resources://my-addon/processcript.js"); services.mm.broadcastasyncmessage("my-addon:unload"); services.ppmm.broadcastasyncmessage("my-addon:unload"); } in the frame/process scripts: remove all kinds of listeners remove observer notifications remove custom categories and services nuke sandboxes unload jsms restore content dom states where necessary, e.g.

JS_SaveFrameChain
saves and restores frame chains.
... syntax bool js_saveframechain(jscontext *cx); void js_restoreframechain(jscontext *cx); name type description cx jscontext * the context to query.
...before calling js_restoreframechain, cx's call stack must be balanced and all nested calls to js_saveframechain must have had matching js_restoreframechain calls.
...see also mxr id search for js_saveframechain mxr id search for js_restoreframechain ...

WebGLRenderingContext.makeXRCompatible() - Web APIs
this is why the webglcontextlost and webglcontextrestored events are used: the first gives you the opportunity to discard anything you won't need anymore, while the second gives you the opportunity to load resources and prepare to render the scene in its new context.
...alse; let currentscene = "scene1"; let glstartbutton; let xrstartbutton; window.addeventlistener("load", (event) => { loadsceneresources(currentscene); glstartbutton.addeventlistener("click", handlestartbuttonclick); xrstartbutton.addeventlistener("click", handlestartbuttonclick); }); outputcanvas.addeventlistener("webglcontextlost", (event) => { /* the context has been lost but can be restored */ event.canceled = true; }); /* when the gl context is reconnected, reload the resources for the current scene.
... */ outputcanvas.addeventlistener("webglcontextrestored", (event) => { loadsceneresources(currentscene); }); async function onstartedxrsession(xrsession) { try { await gl.makexrcompatible(); } catch(err) { switch(err) { case aborterror: showsimplemessagebox("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"); ...
... handlers are provided for both webglcontextlost and webglcontextrestored; in the first case, we make sure we're aware that the state can be recovered, while in the latter we actually reload the scene to ensure we have the correct resources for the current screen or headset configuration.

Search Extension Tutorial (Draft) - Archive of obsolete content
due to the large volume of user complaints regarding hidden settings being changed against their will, and not being restored after the add-ons responsible are disabled, mozilla will take any steps necessary to mitigate the impact of offending add-ons.
...the most technically sound method of achieving this, and the only acceptable way of changing preferences such that they are automatically restored on add-on uninstall, is to make such changes in the default preference branch, as explained below.
...while changes to default preference values will not persist across sessions, restartless extensions must nevertheless restore them for the balance of the session after they have been disabled.

pending - Archive of obsolete content
« xul reference home pending type: boolean this attribute is set to true if the tab is currently in the process of being restored by the session store service.
... once the tab is restored, this attribute is removed.
... you can determine if a tab is being restored by checking to see if hasattribute("pending") is true.

Template and Tree Listeners - Archive of obsolete content
the primary use of this listener is to store some state before the template is rebuilt and restore it afterwards.
... item: null, willrebuild : function(builder) { this.item = builder.getresourceatindex(builder.root.currentindex); }, didrebuild : function(builder) { if (this.item) { var idx = builder.getindexofresource(this.item) if (idx != -1) builder.root.view.selection.select(idx); } } }; tree.builder.addlistener(somelistener); this example is very simple and just saves and restores the selected index after a rebuild.
... since the content goes away during a rebuild, the selection is lost, so it is restored here during the didrebuild method.

tab - Archive of obsolete content
pending type: boolean this attribute is set to true if the tab is currently in the process of being restored by the session store service.
... once the tab is restored, this attribute is removed.
... you can determine if a tab is being restored by checking to see if hasattribute("pending") is true.

HTML parser threading
it contains all the information that is necessary to load back into the tree builder to restore it into a behaviorally equivalent state.
...if the speculation failed, the first buffer corresponding to the starting point of the speculation gets its start index restored to the index stored on the speculation object.
...the tokenizer gets its line number restored from the speculation object.

JS::AutoSaveExceptionState
this article covers features introduced in spidermonkey 31 save and later restore the current exception state of a given jscontext.
... description js::autosaveexceptionstate saves and later restores the current exception state of a given jscontext.
...return ok; see also mxr id search for js::autosaveexceptionstate js_saveexceptionstate js_restoreexceptionstate js_dropexceptionstate bug 972319 ...

JSExceptionState
this is used to save and restore exception states.
... syntax struct jsexceptionstate; description a jsexceptionstate object is returned by the js_saveexceptionstate function, and is passed to functions js_restoreexceptionstate and js_dropexceptionstate.
... see also mxr id search for jsexceptionstate js_saveexceptionstate js_restoreexceptionstate js_dropexceptionstate ...

nsIBrowserSearchService
engines); void getvisibleengines([optional] out unsigned long enginecount, [retval, array, size_is(enginecount)] out nsisearchengine engines); void init([optional] in nsibrowsersearchinitobserver observer); void moveengine(in nsisearchengine engine, in long newindex); void removeengine(in nsisearchengine engine); void restoredefaultengines(); attributes attribute type description currentengine nsisearchengine the currently active search engine.
... restoredefaultengines() un-hides all engines installed in the directory corresponding to the directory service's ns_app_search_dir key.
... (that is the set of engines returned by getdefaultengines()) void restoredefaultengines(); parameters none.

nsIDOMChromeWindow
inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) method overview void beginwindowmove(in nsidomevent mousedownevent); void getattention(); void getattentionwithcyclecount(in long acyclecount); void maximize(); void minimize(); void notifydefaultbuttonloaded(in nsidomelement defaultbutton); void restore(); void setcursor(in domstring cursor); attributes attribute type description browserdomwindow nsibrowserdomwindow the related nsibrowserdomwindow instance which provides access to yet another layer of utility functions by chrome script.
... restore() restores the size and position of the window.
... void restore(); parameters none.

nsITreeColumns
3) inherits from: nsisupports method overview nsitreecolumn getcolumnat(in long index); nsitreecolumn getcolumnfor(in nsidomelement element); nsitreecolumn getfirstcolumn(); nsitreecolumn getkeycolumn(); nsitreecolumn getlastcolumn(); nsitreecolumn getnamedcolumn(in astring id); nsitreecolumn getprimarycolumn(); nsitreecolumn getsortedcolumn(); void invalidatecolumns(); void restorenaturalorder(); attributes attribute type description count long the number of columns.
...restorenaturalorder() restore the original order of the columns before the user moved them.
... void restorenaturalorder(); parameters none.

nsIWindowsShellService
inherits from: nsishellservice last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) method overview string getregistryentry(in long ahkeyconstant, in string asubkeyname, in string avaluename); obsolete since gecko 1.8 void restorefilesettings(in boolean aforallusers); obsolete since gecko 1.9 void shortcutmaintenance(); attributes attribute type description desktopbackgroundcolor unsigned long the desktop background color, visible when no background image is used, or if the background image is centered and does not fill the entire screen.
... restorefilesettings() obsolete since gecko 1.9 (firefox 3) restores system settings to what they were before firefox modified them.
... void restorefilesettings( in boolean aforallusers ); parameters aforallusers whether or not firefox should restore settings for all users on a multi-user system.

nsIXPConnect
void reparentscopeawarewrappers(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!
...nectjsobjectholder reparentwrappednativeiffound( in jscontextptr ajscontext, in jsobjectptr ascope, in jsobjectptr anewparent, in nsisupports acomobj ); parameters ajscontext missing description ascope missing description anewparent missing description acomobj missing description return value missing description exceptions thrown missing exception missing description restorewrappednativeprototype() restore an old prototype for wrapped natives of type aclassinfo.
... void restorewrappednativeprototype( in jscontextptr ajscontext, in jsobjectptr ascope, in nsiclassinfo aclassinfo, in nsixpconnectjsobjectholder aprototype ); parameters ajscontext missing description ascope missing description aclassinfo missing description aprototype missing description exceptions thrown missing exception missing description native code only!setdebugmodewhenpossible when we place the browser in js debug mode, there can't be any js on the stack.

Compositing example - Web APIs
, 0, 0, width/2, height/2); ctx.globalcompositeoperation = pop; ctx.drawimage(canvas2, 0, 0, width/2, height/2); ctx.globalcompositeoperation = "source-over"; ctx.fillstyle = "rgba(0,0,0,0.8)"; ctx.fillrect(0, height/2 - 20, width/2, 20); ctx.fillstyle = "#fff"; ctx.font = "14px arial"; ctx.filltext(pop, 5, height/2 - 5); ctx.restore(); var ctx = canvastodrawon.getcontext('2d'); ctx.clearrect(0, 0, width, height) ctx.save(); ctx.drawimage(canvas1, 0, 0, width/2, height/2); ctx.fillstyle = "rgba(0,0,0,0.8)"; ctx.fillrect(0, height/2 - 20, width/2, 20); ctx.fillstyle = "#fff"; ctx.font = "14px arial"; ctx.filltext('existing content', 5, height/2 - 5); ...
... ctx.restore(); var ctx = canvastodrawfrom.getcontext('2d'); ctx.clearrect(0, 0, width, height) ctx.save(); ctx.drawimage(canvas2, 0, 0, width/2, height/2); ctx.fillstyle = "rgba(0,0,0,0.8)"; ctx.fillrect(0, height/2 - 20, width/2, 20); ctx.fillstyle = "#fff"; ctx.font = "14px arial"; ctx.filltext('new content', 5, height/2 - 5); ctx.restore(); dd.appendchild(canvastodrawon); dd.appendchild(canvastodrawfrom); dd.appendchild(canvastodrawresult); dl.appendchild(dd); } }; utility functions the program relies on a number of utility functions.
...ation = "lighter"; ctx.beginpath(); ctx.fillstyle = "rgba(255,0,0,1)"; ctx.arc(100, 200, 100, math.pi*2, 0, false); ctx.fill() ctx.beginpath(); ctx.fillstyle = "rgba(0,0,255,1)"; ctx.arc(220, 200, 100, math.pi*2, 0, false); ctx.fill() ctx.beginpath(); ctx.fillstyle = "rgba(0,255,0,1)"; ctx.arc(160, 100, 100, math.pi*2, 0, false); ctx.fill(); ctx.restore(); ctx.beginpath(); ctx.fillstyle = "#f00"; ctx.fillrect(0,0,30,30) ctx.fill(); }; var colorsphere = function(element) { var ctx = canvas1.getcontext("2d"); var width = 360; var halfwidth = width / 2; var rotate = (1 / 360) * math.pi * 2; // per degree var offset = 0; // scrollbar offset var oleft = -20; var otop = -20; for (var n = 0; n <= 359; n...

History.scrollRestoration - Web APIs
syntax const scrollrestore = history.scrollrestoration values auto the location on the page to which the user has scrolled will be restored.
... manual the location on the page is not restored.
... const scrollrestoration = history.scrollrestoration if (scrollrestoration === 'manual') { console.log('the location on the page is not restored, user will need to scroll manually.'); } prevent automatic page location restoration if (history.scrollrestoration) { history.scrollrestoration = 'manual'; } specifications specification status comment html living standardthe definition of 'scroll restoration mode' in that specification.

Privileged features - Web APIs
dialog the dialog feature removes all icons (restore, minimize, maximize) from the window's titlebar, leaving only the close button.
...dialog windows are windows which have no minimize system command icon and no maximize/restore down system command icon on the titlebar nor in correspondent menu item in the command system menu.
...in ns 6.x, the alwayslowered window has no minimize system command icon and no restore/maximize system command.

Window.sessionStorage - Web APIs
a page session lasts as long as the browser is open, and survives over page reloads and restores.
... sessionstorage.setitem('mycat', 'tom'); the following example autosaves the contents of a text field, and if the browser is refreshed, restores the text field content so that no writing is lost.
... // get the text field that we're going to track let field = document.getelementbyid("field"); // see if we have an autosave value // (this will only happen if the page is accidentally refreshed) if (sessionstorage.getitem("autosave")) { // restore the contents of the text field field.value = sessionstorage.getitem("autosave"); } // listen for changes in the text field field.addeventlistener("change", function() { // and save the results into the session storage object sessionstorage.setitem("autosave", field.value); }); note: please refer to the using the web storage api article for a full example.

Canvas code snippets - Archive of obsolete content
ext(canvas); } this.context = this.ctx = canvas.getcontext('2d'); if (!canvas2dcontext.prototype.arc) { canvas2dcontext.setup.call(this, this.ctx); } } canvas2dcontext.setup = function() { var methods = ['arc', 'arcto', 'beginpath', 'beziercurveto', 'clearrect', 'clip', 'closepath', 'drawimage', 'fill', 'fillrect', 'filltext', 'lineto', 'moveto', 'quadraticcurveto', 'rect', 'restore', 'rotate', 'save', 'scale', 'settransform', 'stroke', 'strokerect', 'stroketext', 'transform', 'translate']; var gettermethods = ['createpattern', 'drawfocusring', 'ispointinpath', 'measuretext', // drawfocusring not currently supported // the following might instead be wrapped to be able to chain their child objects 'createimagedata', 'createlineargradient', 'createradialgrad...
... ctx.clearrect(0, 0, remotecanvas.canvas_width, remotecanvas.canvas_height); ctx.save(); ctx.scale(remotecanvas.canvas_width / windowwidth, remotecanvas.canvas_height / windowheight); ctx.drawwindow(remotewindow, 0, 0, windowwidth, windowheight, 'rgb(255, 255, 255)'); ctx.restore(); }; usage: var remotecanvas = new remotecanvas(); remotecanvas.load(); convert image files to base64 strings the following code gets a remote image and converts its content to data uri scheme.

Code snippets - Archive of obsolete content
bump meta/global's modified time components.utils.import("resource://services-sync/main.js"); components.utils.import("resource://services-sync/resource.js"); function getpath(path) { let r = new resource(weave.service.storageurl + path); let g = r.get(); return [g, r]; }; let [g, r] = getpath("meta/global"); r.put(g); delete and restore a record components.utils.import("resource://services-sync/main.js"); components.utils.import("resource://services-sync/resource.js"); components.utils.import("resource://services-sync/record.js"); // for example: let id = "iasokuozpixz" let collection = "bookmarks"; let resource = new resource(weave.service.storageurl + collection + "/" + id); let del = new cryptowrapper(collection, id); del.
...resource.put(del); // restore the old value.

Measuring add-on startup performance - Archive of obsolete content
the about:startup page shows 3 different time measurements: main, sessionrestored and firstpaint.
...sessionrestored is fired later in the process, when firefox has loaded all tabs from the saved session.

sizemode - Archive of obsolete content
this attribute is used to save and restore the state of a window (together with the persist attribute) and for css styles (e.g.
...use window.maximize(), window.restore(), or window.minimize() to change the window state.

Index - Archive of obsolete content
212 norestorefocus no summary!
... 337 sizemode xul attributes, xul reference this attribute is used to save and restore the state of a window (together with the persist attribute) and for css styles (e.g.

Tree Widget Changes - Archive of obsolete content
one feature that has been added is restorenaturalorder which may be used to restore the original order of the columns before the user moved them around.
... tree.columns.restorenaturalorder() there is also a command on the end of the tree's column picker which the user may use to restore the original column order.

panel - Archive of obsolete content
attributes backdrag, close, consumeoutsideclicks, fade, flip, ignorekeys, label, left, level, noautofocus, noautohide, norestorefocus, onpopuphidden, onpopuphiding, onpopupshowing, onpopupshown, position, titlebar, top, type properties accessibletype, label, popupboxobject, popup, state methods hidepopup, moveto, openpopup, openpopupatscreen, sizeto examples the following example shows how a panel may be attached to a label.
... norestorefocus type: boolean if false, the default value, then when the panel is hidden, the keyboard focus will be restored to whatever had the focus before the panel was opened.

window - Archive of obsolete content
this attribute is used to save and restore the state of a window (together with the persist attribute) and for css styles (e.g.
...use window.maximize(), window.restore(), or window.minimize() to change the window state.

LiveConnect - Archive of obsolete content
mailing list newsgroup rss feed related topics javascript, plugins older notes (please update or remove as needed.) while the bloated liveconnect code in the mozilla source was removed in version 1.9.2 of the platform (see bug 442399), its former api has been restored (see also the specification and this thread) (building on npapi?), and as of java 6 update 12, extensions as well as applets can make use of this restored api.
... the reimplementation also restores the ability to use try-catch exceptions within javascript, and is free of the increasing number of other bugs introduced by the decline of the original liveconnect (e.g., java.lang.string and arrays not working properly).

CSS FAQ - Learn web development
how do i restore the default value of a property?
... initially css didn't provide a "default" keyword and the only way to restore the default value of a property is to explicitly re-declare that property.

HTML forms in legacy browsers - Learn web development
m buttons there are two ways to define buttons within html forms: the <input> element with its attribute type set to the values button, submit, reset or image the <button> element <input> the <input> element can make things a little difficult if you want to apply some css by using the element selector: <input type="button" value="click me"> if we remove the border on all inputs, can we restore the default appearance on input buttons only?
... input { /* this rule turns off the default rendering for the input types that have a border, including buttons defined with an input element */ border: 1px solid #ccc; } input[type="button"] { /* this does not restore the default rendering */ border: none; } input[type="button"] { /* these don't either!

Drawing graphics - Learn web development
restore the settings you saved in step 2, using restore() call requestanimationframe() to schedule drawing of the next frame of the animation.
... note: we won't cover save() and restore() here, but they are explained nicely in our transformations tutorial (and the ones that follow it).

Componentizing our Svelte app - Learn web development
add the following set of functions below your previous function to handle these actions: function oncancel() { name = todo.name // restores name to its initial value and editing = false // and exit editing mode } function onsave() { update({ name: name }) // updates todo name editing = false // and exit editing mode } function onremove() { dispatch('remove', todo) // emit remove event } function onedit() { editing = true // en...
... the <input>'s value property will be bound to the name variable, and the buttons to cancel and save the changes call oncancel() and onsave() respectively (we added those functions earlier): when oncancel() is invoked, name is restored to its original value (when passed in as a prop) and we exit editing mode (by setting editing to false).

Accessible Toolkit Checklist
alt+f4 closes windows, similar to escape but even works on dialogs without cancel button alt+space opens window menu with restore, move, size, minimize, maximize, close the move and size options must be usable with the arrow keys on the keyboard in windows, initial focus goes to first focusable widget that is not a clickable tabbed property sheet label making tab order definable.
...port for moving slider: arrow keys, home, end, pgup, pgdn msaa support including role_slider, accessible value, value change events progress bars msaa support including accessible name, value, name and value change events grouped navigation widgets menus arrow keys, enter, escape alt alone enters main menu after leaving menus, focus is restored to where it was modified and unmodified mnemonics msaa support (including focus events, menu start and end events, radio and checkbox menu items) static text and group boxes msaa support radio groups only the selected radio button is in the tab order the other radio buttons can be selected and focused with up/down arrow.

PKCS11 Implement
if it runs out of sessions, it uses the initial session for saves and restores.
...a_pkcs c_generatekey c_generatekeypair (if token is read/write)c_generatekeypair (if token is read/write) c_generatekeypair (if token is read/write)c_generatekeypair (if token is read/write) c_wrapkey c_unwrapkey ckm_rsa_pkcs c_unwrapkey ckm_rsa_pkcs c_unwrapkey ckm_rsa_pkcs c_unwrapkey ckm_rsa_pkcs c_generaterandom c_save (when token runs out of sessions) c_restore (when token runs out of sessions) external key tokens need to support c_decrypt and c_sign.

FC_SetOperationState
name fc_setoperationstate - restore the cryptographic operation state of a session.
... description fc_setoperationstate restores the cryptographic operations state of a session from an array of bytes obtained with fc_getoperationstate.

JSAPI Cookbook
to avoid this, your jsapi code implementing the finally block must: save the old exception, if any clear the pending exception so that your cleanup code can run do your cleanup restore the old exception, if any return false if an exception occurred, so that the exception is propagated up.
... * it will be automatically restored when we return, unless we call savedstate.drop().

JS_SaveExceptionState
that object may then be used to restore again the context using js_restoreexceptionstate, or discarded using js_dropexceptionstate.
...see also mxr id search for js_saveexceptionstate jsexceptionstate js_restoreexceptionstate js_dropexceptionstate ...

JS_SetGCCallback
the application may store this return value in order to restore the original callback when the new callback is no longer needed.
... to restore the original callback, call js_setgccallback a second time, and pass the old callback in as the cb argument.

JSAPI reference
pi 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_leavecomp...
..._strict_mode_error the following functions allow c/c++ functions to throw and catch javascript exceptions: js::createerror added in spidermonkey 38 js_isexceptionpending js_getpendingexception js_setpendingexception js_clearpendingexception js_throwstopiteration added in spidermonkey 1.8 js_isstopiteration added in spidermonkey 31 typedef jsexceptionstate js_saveexceptionstate js_restoreexceptionstate js_dropexceptionstate these functions translate errors into exceptions and vice versa: js_reportpendingexception js_errorfromexception js_throwreportederror obsolete since jsapi 29 values and types typedef jsval js::value js::value constructors: js::nullvalue added in spidermonkey 24 js::undefinedvalue added in spidermonkey 24 js::booleanvalue added in spid...

Places Developer Guide
backup/restore the new bookmarks system uses the json format for storing backups of users' bookmarks.
... // import placesutils cu.import("resource://gre/modules/placesutils.jsm"); cu.import("resource://gre/modules/services.jsm"); // create the backup file var jsonfile = services.dirsvc.get("profd", ci.nsilocalfile); jsonfile.append("bookmarks.json"); jsonfile.create(ci.nsilocalfile.normal_file_type, 0600); // export bookmarks in json format to file placesutils.backupbookmarkstofile(jsonfile); // restore bookmarks from the json file // note: this *overwrites* all pre-existing bookmarks placesutils.restorebookmarksfromjsonfile(jsonfile); history the toolkit history service is nsinavhistoryservice: var history = cc["@mozilla.org/browser/nav-history-service;1"] .getservice(ci.nsinavhistoryservice); the history service provides methods for adding, editing, deleting browser history.

mozIStorageVacuumParticipant
the vacuum manager will try to restore wal mode, but this will only work reliably if the participant properly resets statements.
... if the attempt to restore the journal node fails, it will remain truncate.

nsIAccessibleEvent
event_table_column_delete 0x0047 0x0043 event_table_column_reorder 0x0048 0x0044 event_window_activate 0x0049 0x0045 event_window_create 0x004a 0x0046 event_window_deactivate 0x004b 0x0047 event_window_destroy 0x004c 0x0048 event_window_maximize 0x004d 0x0049 event_window_minimize 0x004e 0x004a event_window_resize 0x004f 0x004b event_window_restore 0x0050 0x004c event_hyperlink_end_index_changed 0x0051 0x004d the ending index of this link within the containing string has changed.
...able_column_delete 0x0115 event_atk_table_column_reorder 0x0116 event_atk_link_selected 0x0117 event_atk_window_activate 0x0118 event_atk_window_create 0x0119 event_atk_window_deactivate 0x0120 event_atk_window_destroy 0x0121 event_atk_window_maximize 0x0122 event_atk_window_minimize 0x0123 event_atk_window_resize 0x0124 event_atk_window_restore 0x0125 event_dom_create 0x0001 an object has been created.

nsISHEntry
the child shells are restored as children of the parent docshell, in this order, when the parent docshell restores a saved presentation.
...nsicontentviewer getanycontentviewer( out nsishentry ownerentry ); parameters ownerentry return value getscrollposition() void getscrollposition( out long x, out long y ); parameters x y native code only!getviewerbounds saved position and dimensions of the content viewer; we must adjust the root view's widget accordingly if this has changed when the presentation is restored.

nsIWebNavigation
when a page is loaded from session history, all content is loaded from the cache (if available) and page state (such as form values and scroll position) is restored.
...when a page is loaded from session history, all content is loaded from the cache (if available) and page state (such as form values and scroll position) is restored.

CanvasRenderingContext2D.save() - Web APIs
syntax void ctx.save(); examples saving the drawing state this example uses the save() method to save the default state and restore() to restore it later, so that you are able to draw a rect with the default state later.
... html <canvas id="canvas"></canvas> javascript const canvas = document.getelementbyid('canvas'); const ctx = canvas.getcontext('2d'); // save the default state ctx.save(); ctx.fillstyle = 'green'; ctx.fillrect(10, 10, 100, 100); // restore the default state ctx.restore(); ctx.fillrect(150, 40, 100, 100); result specifications specification status comment html living standardthe definition of 'canvasrenderingcontext2d.save' in that specification.

CanvasRenderingContext2D - Web APIs
the following methods help you to work with that state: canvasrenderingcontext2d.save() saves the current drawing style state using a stack so you can revert any change you make to it using restore().
... canvasrenderingcontext2d.restore() restores the drawing style state to the last element on the 'state stack' saved by save().

Multi-touch interaction - Web APIs
ev.target.style.border = "dashed"; // check this event for 2-touch move/pinch/zoom gesture handle_pinch_zoom(ev); } touch end handler the touchend handler restores the event target's background color back to its original color.
... function end_handler(ev) { ev.preventdefault(); if (logevents) log(ev.type, ev, false); if (ev.targettouches.length == 0) { // restore background and border to original values ev.target.style.background = "white"; ev.target.style.border = "1px solid black"; } } application ui the application uses <div> elements for the touch areas and provides buttons to enable logging and clear the log.

WEBGL_lose_context - Web APIs
webgl_lose_context.restorecontext() simulates restoring the context.
... examples with this extension, you can simulate the webglcontextlost and webglcontextrestored events: const canvas = document.getelementbyid('canvas'); const gl = canvas.getcontext('webgl'); canvas.addeventlistener('webglcontextlost', (event) => { console.log(event); }); gl.getextension('webgl_lose_context').losecontext(); // webglcontextevent event with type "webglcontextlost" is logged.

WebGLRenderingContext.isContextLost() - Web APIs
examples include: two or more pages are using the gpu, but together place too high a demand on the gpu, so the browser tells the two contexts that they've lost the connection, then selects one of the two to restore access for.
...in this case, all contexts are lost, then restored after switching gpus.

Spaces and reference spaces: Spatial tracking in WebXR - Web APIs
since most users would prefer that you maintain the same viewer position and facing direction while performing this transition, you can use the xrframe method getviewerpose() to obtain the current xrviewerpose, switch the session, then use the saved viewer pose to restore the viewer's position and facing.
...upon recovery of tracking, a reset means tracking has been restored and the new position information represents the actual position information provided by the xr hardware, rather than cached or "best-guess" data.

Window: popstate event - Web APIs
it happens after the new location has loaded (if needed), displayed, made visible, and so on, after the pageshow event is sent, but before the persisted user state information is restored and the hashchange event is sent.
... any persisted user state is restored, if the browser chooses to do so.

Introducing the CSS Cascade - CSS: Cascading Style Sheets
resetting styles after your content has finished altering styles, it may find itself in a situation where it needs to restore them to a known state.
... all lets you opt to immediately restore all properties to any of their initial (default) state, the state inherited from the previous level of the cascade, a specific origin (the user-agent stylesheet, the author stylesheet, or the user stylesheet), or even to clear the values of the properties entirely.

Event reference
sstabrestoring addons specific a tab is about to be restored.
... sstabrestored addons specific a tab has been restored.

Set-Cookie - HTTP
warning: many web browsers have a session restore feature that will save all tabs and restore them next time the browser is used.
... session cookies will also be restored, as if the browser was never closed.

JSON.stringify() - JavaScript
= json.stringify({ baz: "quux", foo: "bar" }) //'{"baz":"quux","foo":"bar"}' console.log(a !== b) // true // some memoization functions use json.stringify to serialize arguments, // which may cause a cache miss when encountering the same object like above example of using json.stringify() with localstorage in a case where you want to store an object created by your user and allowing it to be restored even after the browser has been closed, the following example is a model for the applicability of json.stringify(): // creating an example of json var session = { 'screens': [], 'state': true }; session.screens.push({ 'name': 'screena', 'width': 450, 'height': 250 }); session.screens.push({ 'name': 'screenb', 'width': 650, 'height': 350 }); session.screens.push({ 'name': 'screenc', 'width':...
...': 390, 'height': 120 }); session.screens.push({ 'name': 'screenf', 'width': 1240, 'height': 650 }); // converting the json string with json.stringify() // then saving with localstorage in the name of session localstorage.setitem('session', json.stringify(session)); // example of how to transform the string generated through // json.stringify() and saved in localstorage in json object again var restoredsession = json.parse(localstorage.getitem('session')); // now restoredsession variable contains the object that was saved // in localstorage console.log(restoredsession); well-formed json.stringify() engines implementing the well-formed json.stringify specification will stringify lone surrogates, any code point from u+d800 to u+dfff, using unicode escape sequences rather than literally.

page-mod - Archive of obsolete content
for example, here's an add-on that attaches a script to every page the user loads: var data = require("sdk/self").data; var pagemod = require("sdk/page-mod"); pagemod.pagemod({ include: "*", contentscriptfile: data.url("eaten.js") }); the content script replaces the page contents, but restores the original contents when it receives detach: // eaten.js var oldinnerhtml = window.document.body.innerhtml; window.document.body.innerhtml = "eaten!"; self.port.on("detach", function() { window.document.body.innerhtml = oldinnerhtml; }); try running the add-on, loading some pages, and then disabling the add-on in the add-ons manager.

Miscellaneous - Archive of obsolete content
); //put the cursor after the inserted text element.setselectionrange(selectionend, selectionend); } inserttext(document.getelementbyid("example"), "the text to be inserted"); disabling javascript programmatically // disable js in the currently active tab from the context of browser.xul gbrowser.docshell.allowjavascript = false; if this isn't your browser, you should save the value and restore it when finished.

JavaScript Daemons Management - Archive of obsolete content
all original properties will be restored.

Inline options - Archive of obsolete content
<setting pref="extensions.throbberrestored.showtxtontoolbar" title="show text on toolbar button" type="bool" oninputchanged="alert('new value is = ' + this.value); this.style.backgroundcolor='red';"> if labels on other toolbar buttons are visible (like by using add-on "classic theme restorer") then show label on throbber toolbar button </setting> note in order for the oninputchanged to execute, the setting must have a pref ...

Install Manifests - Archive of obsolete content
note: if you want to restore the old behavior of strict compatibility checking of all add-ons, regardless of the value of this setting in their manifests, you can set the extensions.strictcompatibility preference to true.

Chapter 3: Introduction to XUL—How to build a more intuitive UI - Archive of obsolete content
enter the names of the other attributes whose values you want to store as a space-delimited ascii string into the value for persist; the next time that xul document is opened, the saved values will automatically be restored4.

Repackaging Firefox - Archive of obsolete content
if you find a preference you think is generally useful to most partner repacks, please add it below, using the same style: localizable preferences browser.startup.homepage=<string> browser.startup.homepage_reset=<string> url for the default homepage, and what the homepage gets reset to when the user hits "restore to default" in the preferences.

Space Manager High Level Design - Archive of obsolete content
when done with the child, restore the space managers coordinates by translating by the negative of the child block's origin.

Supporting private browsing mode - Archive of obsolete content
from that point until we restore the original value of the private browsing mode setting, things are done privately.

persist - Archive of obsolete content
when the window is re-opened, the values of persistent attributes are restored.

Attribute (XUL) - Archive of obsolete content
tantapply inverted iscontainer isempty key keycode keytext label lastpage lastselected last-tab left linkedpanel max maxheight maxlength maxpos maxrows maxwidth member menu menuactive min minheight minresultsforpopup minwidth mode modifiers mousethrough movetoclick multiline multiple name negate newlines next noautofocus noautohide noinitialfocus nomatch norestorefocus object observes onbeforeaccept onbookmarkgroup onchange onclick onclosetab oncommand oncommandupdate ondialogaccept ondialogcancel ondialogclosure ondialogextra1 ondialogextra2 ondialoghelp onerror onerrorcommand onextra1 onextra2 oninput onload onnewtab onpageadvanced onpagehide onpagerewound onpageshow onpaneload onpopuphidden onpopuphiding onpopupshowing onp...

Building accessible custom components in XUL - Archive of obsolete content
note that when we recreate the label element after editing, we need to explicitly restore the role attribute of the label, so that assistive technologies will continue to treat it as a cell within the spreadsheet.

MoveResize - Archive of obsolete content
this method will change the left and top attributes to match the supplied arguments, so if these attributes are persisted the values will be restored when the window is displayed again.

Panels - Archive of obsolete content
in addition, the norestorefocus attribute should be set to true in order to prevent the previously focused element from being refocused.

Sorting and filtering a custom tree view - Archive of obsolete content
nalist", weapon: "none"}); } if (filtertext == "") { //show all of them table = data; } else { //filter out the ones we want to display table = []; data.foreach(function(element) { //we'll match on every property for (var i in element) { if (prepareforcomparison(element[i]).indexof(filtertext) != -1) { table.push(element); break; } } }); } sort(); //restore scroll position if (topvisiblerow) { settopvisiblerow(topvisiblerow); } } //generic custom tree view stuff function treeview(table) { this.rowcount = table.length; this.getcelltext = function(row, col) { return table[row][col.id]; }; this.getcellvalue = function(row, col) { return table[row][col.id]; }; this.settree = function(treebox) { this.treebox = treebox; }; this.iseditab...

XUL element attributes - Archive of obsolete content
when the window is re-opened, the values of persistent attributes are restored.

2006-11-17 - Archive of obsolete content
paul reed announced that: there was a power outage at his office and the machines, which are responsible for running autoconf (configure.in -> configure), located in his office failed to boot up after power was restored.

NPP_Destroy - Archive of obsolete content
mac os if you want to restore state information if this plug-in is later recreated, use np_memalloc to create an npsaveddata structure.

NPSavedData - Archive of obsolete content
« gecko plugin api reference « plug-in side plug-in api summary block of instance information saved after the plug-in instance is deleted; can be returned to the plug-in to restore the data in future instances of the plug-in.

NP_Port - Archive of obsolete content
restore the previous port settings after drawing.

NPAPI plugin reference - Archive of obsolete content
npsaveddata block of instance information saved after the plug-in instance is deleted; can be returned to the plug-in to restore the data in future instances of the plug-in.

Common Firefox theme issues and solutions - Archive of obsolete content
operating system specific issues windows 7 windows 7 aero missing right-hand title bar buttons when tabs are on top and the menu bar is disabled, firefox is missing the min/max/restore/close button on the right side of the title bar.

2D collision detection - Game development
fty.drawmanager.drawall) return this; }, draw: function() { var ctx = crafty.canvas.context; ctx.save(); ctx.fillstyle = this.color; ctx.beginpath(); ctx.arc( this.x + this.radius, this.y + this.radius, this.radius, 0, math.pi * 2 ); ctx.closepath(); ctx.fill(); ctx.restore(); } }); var circle1 = crafty.e("2d, canvas, circle").attr(dim1).circle(15, "red"); var circle2 = crafty.e("2d, canvas, circle, fourway").fourway(2).attr(dim2).circle(20, "blue"); circle2.bind("enterframe", function () { var dx = (circle1.x + circle1.radius) - (circle2.x + circle2.radius); var dy = (circle1.y + circle1.radius) - (circle2.y + circle2.radius); var distance = math...

Index - MDN Web Docs Glossary: Definitions of Web-related terms
the process of such compression is irreversible; once lossy compression of the content has been performed, the content cannot be restored to its original state.

lossy compression - MDN Web Docs Glossary: Definitions of Web-related terms
the process of such compression is irreversible; once lossy compression of the content has been performed, the content cannot be restored to its original state.

Beginning our React todo list - Learn web development
this role will restore the "list" meaning to the <ul> element.

Starting our Svelte Todo list app - Learn web development
this role will restore the "list" meaning to the <ul> element.

omni.ja (formerly omni.jar)
note: starting with firefox 10 and thunderbird 10, the file extension .ja is used because windows system restore does not back up files with the .jar extension, but it does back up .ja files.

CSUN Firefox Materials
it also includes a full-featured session manager with crash recovery that can save and restore combinations of opened tabs and windows.

Mozilla’s UAAG evaluation report
(p1) g provides sequential access to links and input form controls cannot navigate to non-links and non-input form controls with event handlers cannot configure mozilla to only allow focus changes on explicit user request 9.4 restore history.

Command line options
remote control -remote remote_command this feature was removed in firefox 36.0, restored in 36.0.1 and removed again in 39.0.

Firefox and the "about" protocol
see firefox reader view for clutter-free web pages about:rights displays rights information about:robots special page showing notes about robots about:serviceworkers displays currently running service workers about:studies lists the shield studies that are installed about:sessionrestore session restoration (displayed after a firefox crash) about:support troubleshooting information (also available through firefox menu > ?

DownloadLastDir.jsm
when history is cleared when the user's browsing history is cleared, the value of the last download directory path is restored to the platform's default download directory path.

Bootstrapping a new locale
wing commands one after the other from your command line: $ cd [ab-cd]/browser/chrome/browser to see what is contained in "browser" type $ ls and, you should see the following output from your terminal: aboutcerterror.dtd pageinfo.dtd aboutdialog.dtd pageinfo.properties aboutprivatebrowsing.dtd pagereportfirsttime.dtd aboutrobots.dtd places aboutsessionrestore.dtd preferences aboutsupport.dtd quitdialog.properties basemenuoverlay.dtd safemode.dtd browser.dtd safebrowsing browser.properties sanitize.dtd credits.dtd search.properties enginemanager.dtd searchbar.dtd enginemanager.properties setdesktopbackground.dtd feeds ...

Profiling with the Firefox Profiler
tip: while zooming out to a previously-selected range deletes the narrower range, the browser back button can be used to restore the narrower range.

mail.tabs.drawInTitlebar
the old behavior can be restored by setting the preference mail.tabs.drawintitlebar to false.

Preference reference
the old behavior can be restored by setting the preference mail.tabs.drawintitlebar to false.nglayout.debug.disable xul fastloadthe preference nglayout.debug.disable_xul_fastload controls whether or not xul fastload is used.nglayout.debug.disable_xul_cacheto improve performance, mozilla caches chrome xul documents the first time they load for faster loading later.

Midas editor module security preferences
only change these settings as needed to try the demo above and to test your own add-on or firefox-internal code, and be sure to restore the default settings when you're done!

Cryptography functions
psymkeywithflagsperm mxr 3.9 and later pk11_pubwrapsymkey mxr 3.2 and later pk11_randomupdate mxr 3.2 and later pk11_readrawattribute mxr 3.9.2 and later pk11_referencesymkey mxr 3.2 and later pk11_resettoken mxr 3.4 and later pk11_restorecontext mxr 3.2 and later pk11_savecontext mxr 3.2 and later pk11_savecontextalloc mxr 3.6 and later pk11_setfortezzahack mxr 3.2 and later pk11_setpasswordfunc mxr 3.2 and later pk11_setprivatekeynickname mxr 3.4 and later pk11_set...

NSS 3.16.4 release notes
notable changes in nss 3.16.4 the following 1024-bit root ca certificate was restored to allow more time to develop a better transition strategy for affected sites.

NSS 3.18.1 release notes
notable changes in nss 3.18.1 the following ca certificate had the websites and code signing trust bits restored to their original state to allow more time to develop a better transition strategy for affected sites.

NSS 3.29.2 release notes
this release restores the session ticket lifetime to the intended value.

NSS 3.35 release notes
nss 3.35 fixes this regression and restores the ability to read affected data.

PKCS11 FAQ
if no new sessions are available, the one read-only session is used, and the state is saved and restored after each multipart operation.

Python binding for NSS
09-07-08 scm tag source download change log general modifications: fix red hat bug #510343 client_auth_data_callback seg faults if false is returned from callback release 0.5.0 release date 2009-07-01 scm tag source download change log general modifications: restore ssl.nss_init and ssl.nss_shutdown but make them deprecated add __version__ string to nss module release 0.4.0 release date 2009-06-30 scm tag source download change log general modifications: add binding for nss_nodb_init(), red hat bug #509002 move nss_init and nss_shutdown from ssl module to nss modul...

NSS functions
psymkeywithflagsperm mxr 3.9 and later pk11_pubwrapsymkey mxr 3.2 and later pk11_randomupdate mxr 3.2 and later pk11_readrawattribute mxr 3.9.2 and later pk11_referencesymkey mxr 3.2 and later pk11_resettoken mxr 3.4 and later pk11_restorecontext mxr 3.2 and later pk11_savecontext mxr 3.2 and later pk11_savecontextalloc mxr 3.6 and later pk11_setfortezzahack mxr 3.2 and later pk11_setpasswordfunc mxr 3.2 and later pk11_setprivatekeynickname mxr 3.4 and later pk11_set...

Rhino shell
deserialize(filename) restore from the specified file an object previously written by a call to serialize.

Bytecode Descriptions
it's treated as jump target op so that the baseline interpreter can efficiently restore the frame's interpretericentry when resuming a generator.

JS_DropExceptionState
see also mxr id search for js_dropstateexception jsexceptionstate js_saveexceptionstate js_restoreexceptionstate ...

JS_GetLocaleCallbacks
passing nullptr restores the default behaviour.

JS_IsExceptionPending
*/ js_clearpendingexception(cx); } /* restore the original exception.

Shell global objects
withsourcehook(hook, fun) set this js runtime's lazy source retrieval hook (that is, the hook used to find sources compiled with compileoptions::lazy_source) to hook; call fun with no arguments; and then restore the runtime's original hook.

Setting up an update server
don't forget to restore the backup when you are done.

Animated PNG graphics
apng-aware png editors should restore them to correct order using the sequence numbers.

Gecko events
event_table_column_insert event_table_column_delete event_table_column_reorder event_window_activate event_window_deactivate event_window_destroy event_window_maximize event_window_minimize event_window_resize event_window_restore event_hyperlink_end_index_changed the ending index of this link within the containing string has changed.

Index
this allows the file reference to be saved when the form is submitted while the user is using a web application offline, so that the data can be retrieved and uploaded once the internet connection is restored.

Components.utils.getWeakReference
in gecko 12.0, the previous behavior of silently failing has been restored.

nsIAppStartup
sessionrestored time session restore finished.

nsIDOMFile
this allows the file reference to be saved when the form is submitted while the user is using a web application offline, so that the data can be retrieved and uploaded once the internet connection is restored.

nsINavHistoryService
this will probably not be commonly used other than for backup/restore type operations.

nsIThreadInternal
calls to pusheventqueue() may be nested, and must each be paired with a corresponding call to popeventqueue() to restore the original state of the thread.

nsITransaction
undotransaction() restores the state to what it was before the transaction was executed.

nsIWebContentHandlerRegistrar
so lets restore it back to false, which is the default value services.prefs.clearuserpref('gecko.handlerservice.allowregisterfromdifferenthost'); } register a webmail service as mailto handler without contentwindow under construction.

Storage
this extension is treated specially by windows as a known extension for an 'application compatibility database' and changes are backed up by the system automatically as part of system restore functionality.

Examine and edit CSS - Firefox Developer Tools
any changes you make are temporary: reloading the page will restore the original styling.

Compositing and clipping - Web APIs
.addcolorstop(0, '#232256'); lingrad.addcolorstop(1, '#143778'); ctx.fillstyle = lingrad; ctx.fillrect(-75, -75, 150, 150); // draw stars for (var j = 1; j < 50; j++) { ctx.save(); ctx.fillstyle = '#fff'; ctx.translate(75 - math.floor(math.random() * 150), 75 - math.floor(math.random() * 150)); drawstar(ctx, math.floor(math.random() * 4) + 2); ctx.restore(); } } function drawstar(ctx, r) { ctx.save(); ctx.beginpath(); ctx.moveto(r, 0); for (var i = 0; i < 9; i++) { ctx.rotate(math.pi / 5); if (i % 2 === 0) { ctx.lineto((r / 0.525731) * 0.200811, 0); } else { ctx.lineto(r, 0); } } ctx.closepath(); ctx.fill(); ctx.restore(); } <canvas id="canvas" width="150" height="150"></canvas> draw(); in the ...

Document.querySelectorAll() - Web APIs
the :scope pseudo-class restores the expected behavior, only matching selectors on descendants of the base element: var select = document.queryselector('.select'); var inner = select.queryselectorall(':scope .outer .inner'); inner.length; // 0 specifications specification status comment domthe definition of 'parentnode.queryselectorall()' in that specification.

Element.querySelectorAll() - Web APIs
the :scope pseudo-class restores the expected behavior, only matching selectors on descendants of the base element: var select = document.queryselector('.select'); var inner = select.queryselectorall(':scope .outer .inner'); inner.length; // 0 specifications specification status comment domthe definition of 'parentnode.queryselectorall()' in that specification.

GlobalEventHandlers.onpointerdown - Web APIs
we also have a handler for pointerup events: targetbox.onpointerup = handleup; function handleup(evt) { targetbox.innerhtml = "tap me, click me, or touch me!"; evt.preventdefault(); } this code's job is to just restore the original text into the target box after the user's interaction with the element ends (for example, when they release the mouse button, or when they lift the stylus or finger from the screen).

HTMLCanvasElement - Web APIs
webglcontextrestored fired if the user agent restores the drawing buffer for a webglrenderingcontext or webgl2renderingcontext object.

HTMLFormElement.reset() - Web APIs
the htmlformelement.reset() method restores a form element's default values.

History.pushState() - Web APIs
because firefox saves state objects to the user's disk so they can be restored after the user restarts the browser, we impose a size limit of 640k characters on the serialized representation of a state object.

Working with the History API - Web APIs
because firefox saves state objects to the user's disk so they can be restored after the user restarts the browser, we impose a size limit of 640k characters on the serialized representation of a state object.

Timing element visibility with the Intersection Observer API - Web APIs
to do so, we begin by saving the set of visible ads into a variable known as previouslyvisibleads to be sure we can restore them when the user tabs back into the document, and we then empty the visibleads set so they won't be treated as visible.

MediaStreamTrack.applyConstraints() - Web APIs
syntax const appliedpromise = track.applyconstraints([constraints]) parameters constraints optional a mediatrackconstraints object listing the constraints to apply to the track's constrainable properties; any existing constraints are replaced with the new values specified, and any constrainable properties not included are restored to their default constraints.

MediaStreamTrack: mute event - Web APIs
when the track exits the muted state—detected by the arrival of an unmute event—the background color is restored to white.

MediaStreamTrack: unmute event - Web APIs
when the track exits the muted state—detected by the arrival of an unmuted event—the background color is restored to white.

ParentNode.querySelectorAll() - Web APIs
the :scope pseudo-class restores the expected behavior, only matching selectors on descendants of the base element: var select = document.queryselector('.select'); var inner = select.queryselectorall(':scope .outer .inner'); inner.length; // 0 specifications specification status comment domthe definition of 'parentnode.queryselectorall()' in that specification.

Pinch zoom gestures - Web APIs
when this occurs, the event is removed from the event cache and the target element's background color and border are restored to their original values.

RTCIceTransport.onstatechange - Web APIs
example this snippet establishes a handler for the statechange event that looks to see if the transport has entered the "failed" state, which indicates that the connection has failed with no chance of being automatically restored.

WEBGL_lose_context.loseContext() - Web APIs
the context will remain lost until webgl_lose_context.restorecontext() is called.

WebGLContextEvent - Web APIs
examples with the help of the webgl_lose_context extension, you can simulate the webglcontextlost and webglcontextrestored events: var canvas = document.getelementbyid('canvas'); var gl = canvas.getcontext('webgl'); canvas.addeventlistener('webglcontextlost', function(e) { console.log(e); }, false); gl.getextension('webgl_lose_context').losecontext(); // webglcontextevent event with type "webglcontextlost" is logged.

WebGLRenderingContext.getError() - Web APIs
afterwards and until the context has been restored, it returns gl.no_error.

WebGL: 2D and 3D graphics for the web - Web APIs
webgl_color_buffer_float webgl_compressed_texture_astc webgl_compressed_texture_atc webgl_compressed_texture_etc webgl_compressed_texture_etc1 webgl_compressed_texture_pvrtc webgl_compressed_texture_s3tc webgl_compressed_texture_s3tc_srgb webgl_debug_renderer_info webgl_debug_shaders webgl_depth_texture webgl_draw_buffers webgl_lose_context events webglcontextlost webglcontextrestored webglcontextcreationerror constants and types webgl constants webgl types webgl 2 webgl 2 is a major update to webgl which is provided through the webgl2renderingcontext interface.

WebRTC connectivity - Web APIs
a rollback restores the sdp offer (and the connection configuration by extension) to the configuration it had the last time the connection's signalingstate was stable.

Signaling and video calling - Web APIs
this cleanly restores our app to a state in which it's ready to start or receive another call.

Using the Web Storage API - Web APIs
the two mechanisms within web storage are as follows: sessionstorage maintains a separate storage area for each given origin that's available for the duration of the page session (as long as the browser is open, including page reloads and restores).

Web Storage API - Web APIs
web storage concepts and usage the two mechanisms within web storage are as follows: sessionstorage maintains a separate storage area for each given origin that's available for the duration of the page session (as long as the browser is open, including page reloads and restores) stores data only for a session, meaning that the data is stored until the browser (or tab) is closed.

XRView.eye - Web APIs
updateinjury() returns true if the eye is still injured or false if the eye has been restored to health by the function,.

Mozilla CSS extensions - CSS: Cascading Style Sheets
-button menulist-text menulist-textfield menupopup menuradio menuseparator -moz-mac-unified-toolbar -moz-win-borderless-glass -moz-win-browsertabbar-toolbox -moz-win-communications-toolbox -moz-win-glass -moz-win-media-toolbox -moz-window-button-box -moz-window-button-box-maximized -moz-window-button-close -moz-window-button-maximize -moz-window-button-minimize -moz-window-button-restore -moz-window-titlebar -moz-window-titlebar-maximized progressbar progresschunk radio radio-container radio-label radiomenuitem resizer resizerpanel scale-horizontal scalethumb-horizontal scalethumb-vertical scale-vertical scrollbarbutton-down scrollbarbutton-left scrollbarbutton-right scrollbarbutton-up scrollbar-small scrollbarthumb-horizontal scrollbarthumb-vertical scrollb...

Cubic Bezier Generator - CSS: Cascading Style Sheets
ion the constant 4 should be font size dependant } ctx.lineto(cx(0), ly(i)); } ctx.stroke(); ctx.closepath(); ctx.beginpath(); // draw the y axis label ctx.save(); ctx.rotate(-math.pi / 2); ctx.textalign = "left"; ctx.filltext("output (value ratio)", -cy(0), -3 * basic_scale_size + cx(0)); ctx.restore(); // draw the x axis ctx.moveto(cx(0), cy(0)); ctx.lineto(cx(0), cy(1)); ctx.textalign = "center"; for (i = 0.1; i <= 1; i = i + 0.1) { ctx.moveto(lx(i), basic_scale_size + cy(0)); if ((i == 0.5) || (i > 0.9)) { ctx.moveto(lx(i), 2 * basic_scale_size + cy(0)); ctx.filltext(math.round(i * 10) / 10, cx...

appearance (-moz-appearance, -webkit-appearance) - CSS: Cascading Style Sheets
-moz-window-button-restore firefox removed in firefox 64.

initial - CSS: Cascading Style Sheets
this includes the css shorthand all, with which initial can be used to restore all css properties to their initial state.

max-block-size - CSS: Cascading Style Sheets
they may be restored in level 4.

The Unicode Bidirectional Text Algorithm - Developer guides
there are two sets of control characters; one set opens the override, and another restores the original directionality.

<body>: The Document Body element - HTML: Hypertext Markup Language
ononline function to call when network communication has been restored.

<input type="password"> - HTML: Hypertext Markup Language
finally, autocomplete is set to off to avoid password managers and session restore features trying to set its value, since this isn't a password at all.

<u>: The Unarticulated Annotation (Underline) element - HTML: Hypertext Markup Language
usage notes along with other pure styling elements, the original html underline (<u>) element was deprecated in html 4; however, <u> was restored in html 5 with a new, semantic, meaning: to mark text as having some form of non-textual annotation applied.

Array.prototype.flat() - JavaScript
g on shift/unshift, but array ops on the end tends to be faster function flatten(input) { const stack = [...input]; const res = []; while(stack.length) { // pop value from stack const next = stack.pop(); if(array.isarray(next)) { // push back array items, won't modify the original input stack.push(...next); } else { res.push(next); } } // reverse to restore input order return res.reverse(); } const arr = [1, 2, [3, 4, [5, 6]]]; flatten(arr); // [1, 2, 3, 4, 5, 6] use generator function function* flatten(array, depth) { if(depth === undefined) { depth = 1; } for(const item of array) { if(array.isarray(item) && depth > 0) { yield* flatten(item, depth - 1); } else { yield item; } }...

Promise.prototype.catch() - JavaScript
examples using and chaining the catch method var p1 = new promise(function(resolve, reject) { resolve('success'); }); p1.then(function(value) { console.log(value); // "success!" throw new error('oh, no!'); }).catch(function(e) { console.error(e.message); // "oh, no!" }).then(function(){ console.log('after a catch the chain is restored'); }, function () { console.log('not fired due to the catch'); }); // the following behaves the same as above p1.then(function(value) { console.log(value); // "success!" return promise.reject('oh, no!'); }).catch(function(e) { console.error(e); // "oh, no!" }).then(function(){ console.log('after a catch the chain is restored'); }, function () { console.log('not fired due to the catc...