-
Notifications
You must be signed in to change notification settings - Fork 54
/
customElements.js
820 lines (750 loc) · 27.7 KB
/
customElements.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// This file defines these globals on the window object.
// Define them here so that ESLint can find them:
/* globals MozXULElement, MozHTMLElement, MozElements */
"use strict";
// This is loaded into chrome windows with the subscript loader. Wrap in
// a block to prevent accidentally leaking globals onto `window`.
(() => {
// Handle customElements.js being loaded as a script in addition to the subscriptLoader
// from MainProcessSingleton, to handle pages that can open both before and after
// MainProcessSingleton starts. See Bug 1501845.
if (window.MozXULElement) {
return;
}
const MozElements = {};
window.MozElements = MozElements;
const { Services } = ChromeUtils.import(
"resource://gre/modules/Services.jsm"
);
const { AppConstants } = ChromeUtils.import(
"resource://gre/modules/AppConstants.jsm"
);
const env = Cc["@mozilla.org/process/environment;1"].getService(
Ci.nsIEnvironment
);
const instrumentClasses = env.get("MOZ_INSTRUMENT_CUSTOM_ELEMENTS");
const instrumentedClasses = instrumentClasses ? new Set() : null;
const instrumentedBaseClasses = instrumentClasses ? new WeakSet() : null;
// If requested, wrap the normal customElements.define to give us a chance
// to modify the class so we can instrument function calls in local development:
if (instrumentClasses) {
let define = window.customElements.define;
window.customElements.define = function(name, c, opts) {
instrumentCustomElementClass(c);
return define.call(this, name, c, opts);
};
window.addEventListener(
"load",
() => {
MozElements.printInstrumentation(true);
},
{ once: true, capture: true }
);
}
MozElements.printInstrumentation = function(collapsed) {
let summaries = [];
let totalCalls = 0;
let totalTime = 0;
for (let c of instrumentedClasses) {
// Allow passing in something like MOZ_INSTRUMENT_CUSTOM_ELEMENTS=MozXULElement,Button to filter
let includeClass =
instrumentClasses == 1 ||
instrumentClasses
.split(",")
.some(n => c.name.toLowerCase().includes(n.toLowerCase()));
let summary = c.__instrumentation_summary;
if (includeClass && summary) {
summaries.push(summary);
totalCalls += summary.totalCalls;
totalTime += summary.totalTime;
}
}
if (summaries.length) {
let groupName = `Instrumentation data for custom elements in ${document.documentURI}`;
console[collapsed ? "groupCollapsed" : "group"](groupName);
console.log(
`Total function calls ${totalCalls} and total time spent inside ${totalTime.toFixed(
2
)}`
);
for (let summary of summaries) {
console.log(`${summary.name} (# instances: ${summary.instances})`);
if (Object.keys(summary.data).length > 1) {
console.table(summary.data);
}
}
console.groupEnd(groupName);
}
};
function instrumentCustomElementClass(c) {
// Climb up prototype chain to see if we inherit from a MozElement.
// Keep track of classes to instrument, for example:
// MozMenuCaption->MozMenuBase->BaseText->BaseControl->MozXULElement
let inheritsFromBase = instrumentedBaseClasses.has(c);
let classesToInstrument = [c];
let proto = Object.getPrototypeOf(c);
while (proto) {
classesToInstrument.push(proto);
if (instrumentedBaseClasses.has(proto)) {
inheritsFromBase = true;
break;
}
proto = Object.getPrototypeOf(proto);
}
if (inheritsFromBase) {
for (let c of classesToInstrument.reverse()) {
instrumentIndividualClass(c);
}
}
}
function instrumentIndividualClass(c) {
if (instrumentedClasses.has(c)) {
return;
}
instrumentedClasses.add(c);
let data = { instances: 0 };
function wrapFunction(name, fn) {
return function() {
if (!data[name]) {
data[name] = { time: 0, calls: 0 };
}
data[name].calls++;
let n = performance.now();
let r = fn.apply(this, arguments);
data[name].time += performance.now() - n;
return r;
};
}
function wrapPropertyDescriptor(obj, name) {
if (name == "constructor") {
return;
}
let prop = Object.getOwnPropertyDescriptor(obj, name);
if (prop.get) {
prop.get = wrapFunction(`<get> ${name}`, prop.get);
}
if (prop.set) {
prop.set = wrapFunction(`<set> ${name}`, prop.set);
}
if (prop.writable && prop.value && prop.value.apply) {
prop.value = wrapFunction(name, prop.value);
}
Object.defineProperty(obj, name, prop);
}
// Handle static properties
for (let name of Object.getOwnPropertyNames(c)) {
wrapPropertyDescriptor(c, name);
}
// Handle instance properties
for (let name of Object.getOwnPropertyNames(c.prototype)) {
wrapPropertyDescriptor(c.prototype, name);
}
c.__instrumentation_data = data;
Object.defineProperty(c, "__instrumentation_summary", {
enumerable: false,
configurable: false,
get() {
if (data.instances == 0) {
return null;
}
let clonedData = JSON.parse(JSON.stringify(data));
delete clonedData.instances;
let totalCalls = 0;
let totalTime = 0;
for (let d in clonedData) {
let { time, calls } = clonedData[d];
time = parseFloat(time.toFixed(2));
totalCalls += calls;
totalTime += time;
clonedData[d]["time (ms)"] = time;
delete clonedData[d].time;
clonedData[d].timePerCall = parseFloat((time / calls).toFixed(4));
}
let timePerCall = parseFloat((totalTime / totalCalls).toFixed(4));
totalTime = parseFloat(totalTime.toFixed(2));
// Add a spaced-out final row with summed up totals
clonedData["\ntotals"] = {
"time (ms)": `\n${totalTime}`,
calls: `\n${totalCalls}`,
timePerCall: `\n${timePerCall}`,
};
return {
instances: data.instances,
data: clonedData,
name: c.name,
totalCalls,
totalTime,
};
},
});
}
// The listener of DOMContentLoaded must be set on window, rather than
// document, because the window can go away before the event is fired.
// In that case, we don't want to initialize anything, otherwise we
// may be leaking things because they will never be destroyed after.
let gIsDOMContentLoaded = false;
const gElementsPendingConnection = new Set();
window.addEventListener(
"DOMContentLoaded",
() => {
gIsDOMContentLoaded = true;
for (let element of gElementsPendingConnection) {
try {
if (element.isConnected) {
element.isRunningDelayedConnectedCallback = true;
element.connectedCallback();
}
} catch (ex) {
console.error(ex);
}
element.isRunningDelayedConnectedCallback = false;
}
gElementsPendingConnection.clear();
},
{ once: true, capture: true }
);
const gXULDOMParser = new DOMParser();
gXULDOMParser.forceEnableXULXBL();
MozElements.MozElementMixin = Base => {
let MozElementBase = class extends Base {
constructor() {
super();
if (instrumentClasses) {
let proto = this.constructor;
while (proto && proto != Base) {
proto.__instrumentation_data.instances++;
proto = Object.getPrototypeOf(proto);
}
}
}
/*
* A declarative way to wire up attribute inheritance and automatically generate
* the `observedAttributes` getter. For example, if you returned:
* {
* ".foo": "bar,baz=bat"
* }
*
* Then the base class will automatically return ["bar", "bat"] from `observedAttributes`,
* and set up an `attributeChangedCallback` to pass those attributes down onto an element
* matching the ".foo" selector.
*
* See the `inheritAttribute` function for more details on the attribute string format.
*
* @return {Object<string selector, string attributes>}
*/
static get inheritedAttributes() {
return null;
}
static get flippedInheritedAttributes() {
// Have to be careful here, if a subclass overrides inheritedAttributes
// and its parent class is instantiated first, then reading
// this._flippedInheritedAttributes on the child class will return the
// computed value from the parent. We store it separately on each class
// to ensure everything works correctly when inheritedAttributes is
// overridden.
if (!this.hasOwnProperty("_flippedInheritedAttributes")) {
let { inheritedAttributes } = this;
if (!inheritedAttributes) {
this._flippedInheritedAttributes = null;
} else {
this._flippedInheritedAttributes = {};
for (let selector in inheritedAttributes) {
let attrRules = inheritedAttributes[selector].split(",");
for (let attrRule of attrRules) {
let attrName = attrRule;
let attrNewName = attrRule;
let split = attrName.split("=");
if (split.length == 2) {
attrName = split[1];
attrNewName = split[0];
}
if (!this._flippedInheritedAttributes[attrName]) {
this._flippedInheritedAttributes[attrName] = [];
}
this._flippedInheritedAttributes[attrName].push([
selector,
attrNewName,
]);
}
}
}
}
return this._flippedInheritedAttributes;
}
/*
* Generate this array based on `inheritedAttributes`, if any. A class is free to override
* this if it needs to do something more complex or wants to opt out of this behavior.
*/
static get observedAttributes() {
return Object.keys(this.flippedInheritedAttributes || {});
}
/*
* Provide default lifecycle callback for attribute changes that will inherit attributes
* based on the static `inheritedAttributes` Object. This can be overridden by callers.
*/
attributeChangedCallback(name, oldValue, newValue) {
if (oldValue === newValue || !this.initializedAttributeInheritance) {
return;
}
let list = this.constructor.flippedInheritedAttributes[name];
if (list) {
this.inheritAttribute(list, name);
}
}
/*
* After setting content, calling this will cache the elements from selectors in the
* static `inheritedAttributes` Object. It'll also do an initial call to `this.inheritAttributes()`,
* so in the simple case, this is the only function you need to call.
*
* This should be called any time the children that are inheriting attributes changes. For instance,
* it's common in a connectedCallback to do something like:
*
* this.textContent = "";
* this.append(MozXULElement.parseXULToFragment(`<label />`))
* this.initializeAttributeInheritance();
*
*/
initializeAttributeInheritance() {
let { flippedInheritedAttributes } = this.constructor;
if (!flippedInheritedAttributes) {
return;
}
// Clear out any existing cached elements:
this._inheritedElements = null;
this.initializedAttributeInheritance = true;
for (let attr in flippedInheritedAttributes) {
if (this.hasAttribute(attr)) {
this.inheritAttribute(flippedInheritedAttributes[attr], attr);
}
}
}
/*
* Implements attribute value inheritance by child elements.
*
* @param {array} list
* An array of (to-element-selector, to-attr) pairs.
* @param {string} attr
* An attribute to propagate.
*/
inheritAttribute(list, attr) {
if (!this._inheritedElements) {
this._inheritedElements = {};
}
let hasAttr = this.hasAttribute(attr);
let attrValue = this.getAttribute(attr);
for (let [selector, newAttr] of list) {
if (!(selector in this._inheritedElements)) {
this._inheritedElements[
selector
] = this.getElementForAttrInheritance(selector);
}
let el = this._inheritedElements[selector];
if (el) {
if (newAttr == "text") {
el.textContent = hasAttr ? attrValue : "";
} else if (hasAttr) {
el.setAttribute(newAttr, attrValue);
} else {
el.removeAttribute(newAttr);
}
}
}
}
/**
* Used in setting up attribute inheritance. Takes a selector and returns
* an element for that selector from shadow DOM if there is a shadowRoot,
* or from the light DOM if not.
*
* Here's one problem this solves. ElementB extends ElementA which extends
* MozXULElement. ElementA has a shadowRoot. ElementB tries to inherit
* attributes in light DOM by calling `initializeAttributeInheritance`
* but that fails because it defaults to inheriting from the shadow DOM
* and not the light DOM. (See bug 1545824.)
*
* To solve this, ElementB can override `getElementForAttrInheritance` so
* it queries the light DOM for some selectors as needed. For example:
*
* class ElementA extends MozXULElement {
* static get inheritedAttributes() {
* return { ".one": "attr" };
* }
* }
*
* class ElementB extends customElements.get("elementa") {
* static get inheritedAttributes() {
* return Object.assign({}, super.inheritedAttributes(), {
* ".two": "attr",
* });
* }
* getElementForAttrInheritance(selector) {
* if (selector == ".two") {
* return this.querySelector(selector)
* } else {
* return super.getElementForAttrInheritance(selector);
* }
* }
* }
*
* @param {string} selector
* A selector used to query an element.
*
* @return {Element} The element found by the selector.
*/
getElementForAttrInheritance(selector) {
let parent = this.shadowRoot || this;
return parent.querySelector(selector);
}
/**
* Sometimes an element may not want to run connectedCallback logic during
* parse. This could be because we don't want to initialize the element before
* the element's contents have been fully parsed, or for performance reasons.
* If you'd like to opt-in to this, then add this to the beginning of your
* `connectedCallback` and `disconnectedCallback`:
*
* if (this.delayConnectedCallback()) { return }
*
* And this at the beginning of your `attributeChangedCallback`
*
* if (!this.isConnectedAndReady) { return; }
*/
delayConnectedCallback() {
if (gIsDOMContentLoaded) {
return false;
}
gElementsPendingConnection.add(this);
return true;
}
get isConnectedAndReady() {
return gIsDOMContentLoaded && this.isConnected;
}
/**
* Passes DOM events to the on_<event type> methods.
*/
handleEvent(event) {
let methodName = "on_" + event.type;
if (methodName in this) {
this[methodName](event);
} else {
throw new Error("Unrecognized event: " + event.type);
}
}
/**
* Allows eager deterministic construction of XUL elements with XBL attached, by
* parsing an element tree and returning a DOM fragment to be inserted in the
* document before any of the inner elements is referenced by JavaScript.
*
* This process is required instead of calling the createElement method directly
* because bindings get attached when:
*
* 1. the node gets a layout frame constructed, or
* 2. the node gets its JavaScript reflector created, if it's in the document,
*
* whichever happens first. The createElement method would return a JavaScript
* reflector, but the element wouldn't be in the document, so the node wouldn't
* get XBL attached. After that point, even if the node is inserted into a
* document, it won't get XBL attached until either the frame is constructed or
* the reflector is garbage collected and the element is touched again.
*
* @param {string} str
* String with the XML representation of XUL elements.
* @param {string[]} [entities]
* An array of DTD URLs containing entity definitions.
*
* @return {DocumentFragment} `DocumentFragment` instance containing
* the corresponding element tree, including element nodes
* but excluding any text node.
*/
static parseXULToFragment(str, entities = []) {
let doc = gXULDOMParser.parseFromSafeString(
`
${
entities.length
? `<!DOCTYPE bindings [
${entities.reduce((preamble, url, index) => {
return (
preamble +
`<!ENTITY % _dtd-${index} SYSTEM "${url}">
%_dtd-${index};
`
);
}, "")}
]>`
: ""
}
<box xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
xmlns:html="http://www.w3.org/1999/xhtml">
${str}
</box>
`,
"application/xml"
);
if (doc.documentElement.localName === "parsererror") {
throw new Error("not well-formed XML");
}
// The XUL/XBL parser is set to ignore all-whitespace nodes, whereas (X)HTML
// does not do this. Most XUL code assumes that the whitespace has been
// stripped out, so we simply remove all text nodes after using the parser.
let nodeIterator = doc.createNodeIterator(doc, NodeFilter.SHOW_TEXT);
let currentNode = nodeIterator.nextNode();
while (currentNode) {
// Remove whitespace-only nodes. Regex is taken from:
// https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model/Whitespace_in_the_DOM
if (!/[^\t\n\r ]/.test(currentNode.textContent)) {
currentNode.remove();
}
currentNode = nodeIterator.nextNode();
}
// We use a range here so that we don't access the inner DOM elements from
// JavaScript before they are imported and inserted into a document.
let range = doc.createRange();
range.selectNodeContents(doc.querySelector("box"));
return range.extractContents();
}
/**
* Insert a localization link to an FTL file. This is used so that
* a Custom Element can wait to inject the link until it's connected,
* and so that consuming documents don't require the correct <link>
* present in the markup.
*
* @param path
* The path to the FTL file
*/
static insertFTLIfNeeded(path) {
let container = document.head || document.querySelector("linkset");
if (!container) {
if (
document.documentElement.namespaceURI ===
"http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
) {
container = document.createXULElement("linkset");
document.documentElement.appendChild(container);
} else if (document.documentURI == AppConstants.BROWSER_CHROME_URL) {
// Special case for browser.xhtml. Here `document.head` is null, so
// just insert the link at the end of the window.
container = document.documentElement;
} else {
throw new Error(
"Attempt to inject localization link before document.head is available"
);
}
}
for (let link of container.querySelectorAll("link")) {
if (link.getAttribute("href") == path) {
return;
}
}
let link = document.createElementNS(
"http://www.w3.org/1999/xhtml",
"link"
);
link.setAttribute("rel", "localization");
link.setAttribute("href", path);
container.appendChild(link);
}
/**
* Indicate that a class defining a XUL element implements one or more
* XPCOM interfaces by adding a getCustomInterface implementation to it,
* as well as an implementation of QueryInterface.
*
* The supplied class should implement the properties and methods of
* all of the interfaces that are specified.
*
* @param cls
* The class that implements the interface.
* @param names
* Array of interface names.
*/
static implementCustomInterface(cls, ifaces) {
if (cls.prototype.customInterfaces) {
ifaces.push(...cls.prototype.customInterfaces);
}
cls.prototype.customInterfaces = ifaces;
cls.prototype.QueryInterface = ChromeUtils.generateQI(ifaces);
cls.prototype.getCustomInterfaceCallback = function getCustomInterfaceCallback(
ifaceToCheck
) {
if (
cls.prototype.customInterfaces.some(iface =>
iface.equals(ifaceToCheck)
)
) {
return getInterfaceProxy(this);
}
return null;
};
}
};
// Rename the class so we can distinguish between MozXULElement and MozXULPopupElement, for example.
Object.defineProperty(MozElementBase, "name", { value: `Moz${Base.name}` });
if (instrumentedBaseClasses) {
instrumentedBaseClasses.add(MozElementBase);
}
return MozElementBase;
};
const MozXULElement = MozElements.MozElementMixin(XULElement);
const MozHTMLElement = MozElements.MozElementMixin(HTMLElement);
/**
* Given an object, add a proxy that reflects interface implementations
* onto the object itself.
*/
function getInterfaceProxy(obj) {
/* globals MozQueryInterface */
if (!obj._customInterfaceProxy) {
obj._customInterfaceProxy = new Proxy(obj, {
get(target, prop, receiver) {
let propOrMethod = target[prop];
if (typeof propOrMethod == "function") {
if (propOrMethod instanceof MozQueryInterface) {
return Reflect.get(target, prop, receiver);
}
return function(...args) {
return propOrMethod.apply(target, args);
};
}
return propOrMethod;
},
});
}
return obj._customInterfaceProxy;
}
MozElements.BaseControlMixin = Base => {
class BaseControl extends Base {
get disabled() {
return this.getAttribute("disabled") == "true";
}
set disabled(val) {
if (val) {
this.setAttribute("disabled", "true");
} else {
this.removeAttribute("disabled");
}
}
get tabIndex() {
return parseInt(this.getAttribute("tabindex")) || 0;
}
set tabIndex(val) {
if (val) {
this.setAttribute("tabindex", val);
} else {
this.removeAttribute("tabindex");
}
}
}
MozXULElement.implementCustomInterface(BaseControl, [
Ci.nsIDOMXULControlElement,
]);
return BaseControl;
};
MozElements.BaseControl = MozElements.BaseControlMixin(MozXULElement);
const BaseTextMixin = Base =>
class BaseText extends MozElements.BaseControlMixin(Base) {
set label(val) {
this.setAttribute("label", val);
return val;
}
get label() {
return this.getAttribute("label");
}
set crop(val) {
this.setAttribute("crop", val);
return val;
}
get crop() {
return this.getAttribute("crop");
}
set image(val) {
this.setAttribute("image", val);
return val;
}
get image() {
return this.getAttribute("image");
}
set command(val) {
this.setAttribute("command", val);
return val;
}
get command() {
return this.getAttribute("command");
}
set accessKey(val) {
// Always store on the control
this.setAttribute("accesskey", val);
// If there is a label, change the accesskey on the labelElement
// if it's also set there
if (this.labelElement) {
this.labelElement.accessKey = val;
}
return val;
}
get accessKey() {
return this.labelElement
? this.labelElement.accessKey
: this.getAttribute("accesskey");
}
};
MozElements.BaseTextMixin = BaseTextMixin;
MozElements.BaseText = BaseTextMixin(MozXULElement);
// Attach the base class to the window so other scripts can use it:
window.MozXULElement = MozXULElement;
window.MozHTMLElement = MozHTMLElement;
customElements.setElementCreationCallback("browser", () => {
Services.scriptloader.loadSubScript(
"chrome://global/content/elements/browser-custom-element.js",
window
);
});
// Skip loading any extra custom elements in the extension dummy document
// and GeckoView windows.
const loadExtraCustomElements = !(
document.documentURI == "chrome://extensions/content/dummy.xhtml" ||
document.documentURI == "chrome://geckoview/content/geckoview.xhtml"
);
if (loadExtraCustomElements) {
for (let script of [
"chrome://global/content/elements/arrowscrollbox.js",
"chrome://global/content/elements/dialog.js",
"chrome://global/content/elements/general.js",
"chrome://global/content/elements/button.js",
"chrome://global/content/elements/checkbox.js",
"chrome://global/content/elements/menu.js",
"chrome://global/content/elements/menupopup.js",
"chrome://global/content/elements/moz-input-box.js",
"chrome://global/content/elements/notificationbox.js",
"chrome://global/content/elements/panel.js",
"chrome://global/content/elements/popupnotification.js",
"chrome://global/content/elements/radio.js",
"chrome://global/content/elements/richlistbox.js",
"chrome://global/content/elements/autocomplete-popup.js",
"chrome://global/content/elements/autocomplete-richlistitem.js",
"chrome://global/content/elements/tabbox.js",
"chrome://global/content/elements/text.js",
"chrome://global/content/elements/toolbarbutton.js",
"chrome://global/content/elements/tree.js",
"chrome://global/content/elements/wizard.js",
]) {
Services.scriptloader.loadSubScript(script, window);
}
for (let [tag, script] of [
["findbar", "chrome://global/content/elements/findbar.js"],
["menulist", "chrome://global/content/elements/menulist.js"],
["search-textbox", "chrome://global/content/elements/search-textbox.js"],
[
"autocomplete-input",
"chrome://global/content/elements/autocomplete-input.js",
],
["stringbundle", "chrome://global/content/elements/stringbundle.js"],
[
"printpreview-toolbar",
"chrome://global/content/printPreviewToolbar.js",
],
["editor", "chrome://global/content/elements/editor.js"],
]) {
customElements.setElementCreationCallback(tag, () => {
Services.scriptloader.loadSubScript(script, window);
});
}
}
})();