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
|
<!doctype html>
<head>
<meta charset=utf-8>
<title>Tests restyles caused by animations</title>
<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
<script src="chrome://mochikit/content/tests/SimpleTest/SpawnTask.js"></script>
<script src="chrome://mochikit/content/tests/SimpleTest/paint_listener.js"></script>
<script src="../testcommon.js"></script>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css">
<style>
@keyframes opacity {
from { opacity: 1; }
to { opacity: 0; }
}
@keyframes background-color {
from { background-color: red; }
to { background-color: blue; }
}
@keyframes rotate {
from { transform: rotate(0deg); }
to { transform: rotate(360deg); }
}
div {
/* Element needs geometry to be eligible for layerization */
width: 100px;
height: 100px;
background-color: white;
}
</style>
</head>
<body>
<script>
'use strict';
function observeStyling(frameCount, onFrame) {
var docShell = window.QueryInterface(SpecialPowers.Ci.nsIInterfaceRequestor)
.getInterface(SpecialPowers.Ci.nsIWebNavigation)
.QueryInterface(SpecialPowers.Ci.nsIDocShell);
docShell.recordProfileTimelineMarkers = true;
docShell.popProfileTimelineMarkers();
return new Promise(function(resolve) {
return waitForAnimationFrames(frameCount, onFrame).then(function() {
var markers = docShell.popProfileTimelineMarkers();
docShell.recordProfileTimelineMarkers = false;
var stylingMarkers = markers.filter(function(marker, index) {
return marker.name == 'Styles' &&
(marker.restyleHint == 'eRestyle_CSSAnimations' ||
marker.restyleHint == 'eRestyle_CSSTransitions');
});
resolve(stylingMarkers);
});
});
}
function ensureElementRemoval(aElement) {
return new Promise(function(resolve) {
aElement.remove();
waitForAllPaintsFlushed(resolve);
});
}
SimpleTest.waitForExplicitFinish();
var omtaEnabled = isOMTAEnabled();
var isAndroid = !!navigator.userAgent.includes("Android");
function add_task_if_omta_enabled(test) {
if (!omtaEnabled) {
info(test.name + " is skipped because OMTA is disabled");
return;
}
add_task(test);
}
// We need to wait for all paints before running tests to avoid contaminations
// from styling of this document itself.
waitForAllPaints(function() {
add_task(function* restyling_for_main_thread_animations() {
var div = addDiv(null, { style: 'animation: background-color 100s' });
var animation = div.getAnimations()[0];
yield animation.ready;
ok(!animation.isRunningOnCompositor);
var markers = yield observeStyling(5);
is(markers.length, 5,
'CSS animations running on the main-thread should update style ' +
'on the main thread');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(function* no_restyling_for_compositor_animations() {
var div = addDiv(null, { style: 'animation: opacity 100s' });
var animation = div.getAnimations()[0];
yield animation.ready;
ok(animation.isRunningOnCompositor);
var markers = yield observeStyling(5);
is(markers.length, 0,
'CSS animations running on the compositor should not update style ' +
'on the main thread');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(function* no_restyling_for_compositor_transitions() {
var div = addDiv(null, { style: 'transition: opacity 100s; opacity: 0' });
getComputedStyle(div).opacity;
div.style.opacity = 1;
var animation = div.getAnimations()[0];
yield animation.ready;
ok(animation.isRunningOnCompositor);
var markers = yield observeStyling(5);
is(markers.length, 0,
'CSS transitions running on the compositor should not update style ' +
'on the main thread');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(function* no_restyling_when_animation_duration_is_changed() {
var div = addDiv(null, { style: 'animation: opacity 100s' });
var animation = div.getAnimations()[0];
yield animation.ready;
ok(animation.isRunningOnCompositor);
div.animationDuration = '200s';
var markers = yield observeStyling(5);
is(markers.length, 0,
'Animations running on the compositor should not update style ' +
'on the main thread');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(function* only_one_restyling_after_finish_is_called() {
var div = addDiv(null, { style: 'animation: opacity 100s' });
var animation = div.getAnimations()[0];
yield animation.ready;
ok(animation.isRunningOnCompositor);
animation.finish();
var markers = yield observeStyling(5);
is(markers.length, 1,
'Animations running on the compositor should only update style ' +
'once after finish() is called');
yield ensureElementRemoval(div);
});
add_task(function* no_restyling_mouse_movement_on_finished_transition() {
var div = addDiv(null, { style: 'transition: opacity 1ms; opacity: 0' });
getComputedStyle(div).opacity;
div.style.opacity = 1;
var animation = div.getAnimations()[0];
var initialRect = div.getBoundingClientRect();
yield animation.finished;
var mouseX = initialRect.left + initialRect.width / 2;
var mouseY = initialRect.top + initialRect.height / 2;
var markers = yield observeStyling(5, function() {
// We can't use synthesizeMouse here since synthesizeMouse causes
// layout flush.
synthesizeMouseAtPoint(mouseX++, mouseY++,
{ type: 'mousemove' }, window);
});
is(markers.length, 0,
'Bug 1219236: Finished transitions should never cause restyles ' +
'when mouse is moved on the animations');
yield ensureElementRemoval(div);
});
add_task(function* no_restyling_mouse_movement_on_finished_animation() {
var div = addDiv(null, { style: 'animation: opacity 1ms' });
var animation = div.getAnimations()[0];
var initialRect = div.getBoundingClientRect();
yield animation.finished;
var mouseX = initialRect.left + initialRect.width / 2;
var mouseY = initialRect.top + initialRect.height / 2;
var markers = yield observeStyling(5, function() {
// We can't use synthesizeMouse here since synthesizeMouse causes
// layout flush.
synthesizeMouseAtPoint(mouseX++, mouseY++,
{ type: 'mousemove' }, window);
});
is(markers.length, 0,
'Bug 1219236: Finished animations should never cause restyles ' +
'when mouse is moved on the animations');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(function* no_restyling_compositor_animations_out_of_view_element() {
if (!SpecialPowers.getBoolPref('dom.animations.offscreen-throttling')) {
return;
}
var div = addDiv(null,
{ style: 'animation: opacity 100s; transform: translateY(-400px);' });
var animation = div.getAnimations()[0];
yield animation.ready;
ok(!animation.isRunningOnCompositor);
var markers = yield observeStyling(5);
is(markers.length, 0,
'Animations running on the compositor in an out-of-view element ' +
'should never cause restyles');
yield ensureElementRemoval(div);
});
add_task(function* no_restyling_main_thread_animations_out_of_view_element() {
if (!SpecialPowers.getBoolPref('dom.animations.offscreen-throttling')) {
return;
}
var div = addDiv(null,
{ style: 'animation: background-color 100s; transform: translateY(-400px);' });
var animation = div.getAnimations()[0];
yield animation.ready;
var markers = yield observeStyling(5);
is(markers.length, 0,
'Animations running on the main-thread in an out-of-view element ' +
'should never cause restyles');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(function* no_restyling_compositor_animations_in_scrolled_out_element() {
if (!SpecialPowers.getBoolPref('dom.animations.offscreen-throttling')) {
return;
}
/*
On Android the opacity animation runs on the compositor even if it is
scrolled out of view. We will fix this in bug 1247800.
*/
if (isAndroid) {
return;
}
var parentElement = addDiv(null,
{ style: 'overflow-y: scroll; height: 20px;' });
var div = addDiv(null,
{ style: 'animation: opacity 100s; position: relative; top: 100px;' });
parentElement.appendChild(div);
var animation = div.getAnimations()[0];
yield animation.ready;
var markers = yield observeStyling(5);
is(markers.length, 0,
'Animations running on the compositor for elements ' +
'which are scrolled out should never cause restyles');
yield ensureElementRemoval(parentElement);
});
add_task(function* no_restyling_main_thread_animations_in_scrolled_out_element() {
if (!SpecialPowers.getBoolPref('dom.animations.offscreen-throttling')) {
return;
}
/*
On Android throttled animations are left behind on the main thread in some
frames, We will fix this in bug 1247800.
*/
if (isAndroid) {
return;
}
var parentElement = addDiv(null,
{ style: 'overflow-y: scroll; height: 20px;' });
var div = addDiv(null,
{ style: 'animation: background-color 100s; position: relative; top: 100px;' });
parentElement.appendChild(div);
var animation = div.getAnimations()[0];
yield animation.ready;
var markers = yield observeStyling(5);
is(markers.length, 0,
'Animations running on the main-thread for elements ' +
'which are scrolled out should never cause restyles');
yield ensureElementRemoval(parentElement);
});
add_task(function* no_restyling_main_thread_animations_in_nested_scrolled_out_element() {
if (!SpecialPowers.getBoolPref('dom.animations.offscreen-throttling')) {
return;
}
/*
On Android throttled animations are left behind on the main thread in some
frames, We will fix this in bug 1247800.
*/
if (isAndroid) {
return;
}
var grandParent = addDiv(null,
{ style: 'overflow-y: scroll; height: 20px;' });
var parentElement = addDiv(null,
{ style: 'overflow-y: scroll; height: 100px;' });
var div = addDiv(null,
{ style: 'animation: background-color 100s; position: relative; top: 100px;' });
grandParent.appendChild(parentElement);
parentElement.appendChild(div);
var animation = div.getAnimations()[0];
yield animation.ready;
var markers = yield observeStyling(5);
is(markers.length, 0,
'Animations running on the main-thread which are in nested elements ' +
'which are scrolled out should never cause restyles');
yield ensureElementRemoval(grandParent);
});
add_task_if_omta_enabled(function* no_restyling_compositor_animations_in_visiblily_hidden_element() {
var div = addDiv(null,
{ style: 'animation: opacity 100s; visibility: hidden' });
var animation = div.getAnimations()[0];
yield animation.ready;
ok(!animation.isRunningOnCompositor);
var markers = yield observeStyling(5);
todo_is(markers.length, 0,
'Bug 1237454: Animations running on the compositor in ' +
'visibility hidden element should never cause restyles');
yield ensureElementRemoval(div);
});
add_task(function* restyling_main_thread_animations_moved_in_view_by_scrolling() {
if (!SpecialPowers.getBoolPref('dom.animations.offscreen-throttling')) {
return;
}
/*
On Android throttled animations are left behind on the main thread in some
frames, We will fix this in bug 1247800.
*/
if (isAndroid) {
return;
}
var parentElement = addDiv(null,
{ style: 'overflow-y: scroll; height: 20px;' });
var div = addDiv(null,
{ style: 'animation: background-color 100s; position: relative; top: 100px;' });
parentElement.appendChild(div);
var animation = div.getAnimations()[0];
var parentRect = parentElement.getBoundingClientRect();
var centerX = parentRect.left + parentRect.width / 2;
var centerY = parentRect.top + parentRect.height / 2;
yield animation.ready;
var markers = yield observeStyling(1, function() {
// We can't use synthesizeWheel here since synthesizeWheel causes
// layout flush.
synthesizeWheelAtPoint(centerX, centerY,
{ deltaMode: WheelEvent.DOM_DELTA_PIXEL,
deltaY: 100 });
});
is(markers.length, 1,
'Animations running on the main-thread which were in scrolled out ' +
'elements should update restyling soon after the element moved in ' +
'view by scrolling');
yield ensureElementRemoval(parentElement);
});
add_task(function* restyling_main_thread_animations_moved_in_view_by_scrolling() {
if (!SpecialPowers.getBoolPref('dom.animations.offscreen-throttling')) {
return;
}
var grandParent = addDiv(null,
{ style: 'overflow-y: scroll; height: 20px;' });
var parentElement = addDiv(null,
{ style: 'overflow-y: scroll; height: 200px;' });
var div = addDiv(null,
{ style: 'animation: background-color 100s; position: relative; top: 100px;' });
grandParent.appendChild(parentElement);
parentElement.appendChild(div);
var animation = div.getAnimations()[0];
var parentRect = grandParent.getBoundingClientRect();
var centerX = parentRect.left + parentRect.width / 2;
var centerY = parentRect.top + parentRect.height / 2;
yield animation.ready;
var markers = yield observeStyling(1, function() {
// We can't use synthesizeWheel here since synthesizeWheel causes
// layout flush.
synthesizeWheelAtPoint(centerX, centerY,
{ deltaMode: WheelEvent.DOM_DELTA_PIXEL,
deltaY: 100 });
});
// FIXME: We should reduce a redundant restyle here.
ok(markers.length >= 1,
'Animations running on the main-thread which were in nested scrolled ' +
'out elements should update restyle soon after the element moved ' +
'in view by scrolling');
yield ensureElementRemoval(grandParent);
});
add_task(function* restyling_main_thread_animations_move_out_of_view_by_scrolling() {
if (!SpecialPowers.getBoolPref('dom.animations.offscreen-throttling')) {
return;
}
/*
On Android throttled animations are left behind on the main thread in some
frames, We will fix this in bug 1247800.
*/
if (isAndroid) {
return;
}
var parentElement = addDiv(null,
{ style: 'overflow-y: scroll; height: 200px;' });
var div = addDiv(null,
{ style: 'animation: background-color 100s;' });
var pad = addDiv(null,
{ style: 'height: 400px;' });
parentElement.appendChild(div);
parentElement.appendChild(pad);
var animation = div.getAnimations()[0];
var parentRect = parentElement.getBoundingClientRect();
var centerX = parentRect.left + parentRect.width / 2;
var centerY = parentRect.top + parentRect.height / 2;
yield animation.ready;
// We can't use synthesizeWheel here since synthesizeWheel causes
// layout flush.
synthesizeWheelAtPoint(centerX, centerY,
{ deltaMode: WheelEvent.DOM_DELTA_PIXEL,
deltaY: 200 });
var markers = yield observeStyling(5);
// FIXME: We should reduce a redundant restyle here.
ok(markers.length >= 0,
'Animations running on the main-thread which are in scrolled out ' +
'elements should throttle restyling');
yield ensureElementRemoval(parentElement);
});
add_task(function* restyling_main_thread_animations_moved_in_view_by_resizing() {
if (!SpecialPowers.getBoolPref('dom.animations.offscreen-throttling')) {
return;
}
var parentElement = addDiv(null,
{ style: 'overflow-y: scroll; height: 20px;' });
var div = addDiv(null,
{ style: 'animation: background-color 100s; position: relative; top: 100px;' });
parentElement.appendChild(div);
var animation = div.getAnimations()[0];
yield animation.ready;
var markers = yield observeStyling(1, function() {
parentElement.style.height = '100px';
});
is(markers.length, 1,
'Animations running on the main-thread which was in scrolled out ' +
'elements should update restyling soon after the element moved in ' +
'view by resizing');
yield ensureElementRemoval(parentElement);
});
add_task(function* no_restyling_main_thread_animations_in_visiblily_hidden_element() {
var div = addDiv(null,
{ style: 'animation: background-color 100s; visibility: hidden' });
var animation = div.getAnimations()[0];
yield animation.ready;
var markers = yield observeStyling(5);
todo_is(markers.length, 0,
'Bug 1237454: Animations running on the main-thread in ' +
'visibility hidden element should never cause restyles');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(function* no_restyling_compositor_animations_after_pause_is_called() {
var div = addDiv(null, { style: 'animation: opacity 100s' });
var animation = div.getAnimations()[0];
yield animation.ready;
ok(animation.isRunningOnCompositor);
animation.pause();
yield animation.ready;
var markers = yield observeStyling(5);
is(markers.length, 0,
'Bug 1232563: Paused animations running on the compositor should ' +
'never cause restyles once after pause() is called');
yield ensureElementRemoval(div);
});
add_task(function* no_restyling_main_thread_animations_after_pause_is_called() {
var div = addDiv(null, { style: 'animation: background-color 100s' });
var animation = div.getAnimations()[0];
yield animation.ready;
animation.pause();
yield animation.ready;
var markers = yield observeStyling(5);
is(markers.length, 0,
'Bug 1232563: Paused animations running on the main-thread should ' +
'never cause restyles after pause() is called');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(function* only_one_restyling_when_current_time_is_set_to_middle_of_duration() {
var div = addDiv(null, { style: 'animation: opacity 100s' });
var animation = div.getAnimations()[0];
yield animation.ready;
animation.currentTime = 50 * MS_PER_SEC;
var markers = yield observeStyling(5);
is(markers.length, 1,
'Bug 1235478: Animations running on the compositor should only once ' +
'update style when currentTime is set to middle of duration time');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(function* change_duration_and_currenttime() {
var div = addDiv(null);
var animation = div.animate({ opacity: [ 0, 1 ] }, 100 * MS_PER_SEC);
yield animation.ready;
ok(animation.isRunningOnCompositor);
// Set currentTime to a time longer than duration.
animation.currentTime = 500 * MS_PER_SEC;
// Now the animation immediately get back from compositor.
ok(!animation.isRunningOnCompositor);
// Extend the duration.
animation.effect.timing.duration = 800 * MS_PER_SEC;
var markers = yield observeStyling(5);
is(markers.length, 1,
'Animations running on the compositor should update style ' +
'when timing.duration is made longer than the current time');
yield ensureElementRemoval(div);
});
add_task(function* script_animation_on_display_none_element() {
var div = addDiv(null);
var animation = div.animate({ backgroundColor: [ 'red', 'blue' ] },
100 * MS_PER_SEC);
yield animation.ready;
div.style.display = 'none';
// We need to wait a frame to apply display:none style.
yield waitForFrame();
is(animation.playState, 'running',
'Script animations keep running even when the target element has ' +
'"display: none" style');
ok(!animation.isRunningOnCompositor,
'Script animations on "display:none" element should not run on the ' +
'compositor');
var markers = yield observeStyling(5);
is(markers.length, 0,
'Script animations on "display: none" element should not update styles');
div.style.display = '';
// We need to wait a frame to unapply display:none style.
yield waitForFrame();
var markers = yield observeStyling(5);
is(markers.length, 5,
'Script animations restored from "display: none" state should update ' +
'styles');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(function* compositable_script_animation_on_display_none_element() {
var div = addDiv(null);
var animation = div.animate({ opacity: [ 0, 1 ] }, 100 * MS_PER_SEC);
yield animation.ready;
div.style.display = 'none';
// We need to wait a frame to apply display:none style.
yield waitForFrame();
is(animation.playState, 'running',
'Opacity script animations keep running even when the target element ' +
'has "display: none" style');
ok(!animation.isRunningOnCompositor,
'Opacity script animations on "display:none" element should not ' +
'run on the compositor');
var markers = yield observeStyling(5);
is(markers.length, 0,
'Opacity script animations on "display: none" element should not ' +
'update styles');
div.style.display = '';
// We need to wait a frame to unapply display:none style.
yield waitForFrame();
ok(animation.isRunningOnCompositor,
'Opacity script animations restored from "display: none" should be ' +
'run on the compositor');
yield ensureElementRemoval(div);
});
add_task(function* restyling_for_empty_keyframes() {
var div = addDiv(null);
var animation = div.animate({ }, 100 * MS_PER_SEC);
yield animation.ready;
var markers = yield observeStyling(5);
is(markers.length, 0,
'Animations with no keyframes should not cause restyles');
animation.effect.setKeyframes({ backgroundColor: ['red', 'blue'] });
markers = yield observeStyling(5);
is(markers.length, 5,
'Setting valid keyframes should cause regular animation restyles to ' +
'occur');
animation.effect.setKeyframes({ });
markers = yield observeStyling(5);
is(markers.length, 1,
'Setting an empty set of keyframes should trigger a single restyle ' +
'to remove the previous animated style');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(function* no_restyling_when_animation_style_when_re_setting_same_animation_property() {
var div = addDiv(null, { style: 'animation: opacity 100s' });
var animation = div.getAnimations()[0];
yield animation.ready;
ok(animation.isRunningOnCompositor);
// Apply the same animation style
div.style.animation = 'opacity 100s';
var markers = yield observeStyling(5);
is(markers.length, 0,
'Applying same animation style ' +
'should never cause restyles');
yield ensureElementRemoval(div);
});
add_task(function* necessary_update_should_be_invoked() {
var div = addDiv(null, { style: 'animation: background-color 100s' });
var animation = div.getAnimations()[0];
yield animation.ready;
yield waitForAnimationFrames(5);
// Apply another animation style
div.style.animation = 'background-color 110s';
var animation = div.getAnimations()[0];
var markers = yield observeStyling(5);
is(markers.length, 5,
'Applying animation style with different duration ' +
'should cause restyles on every frame.');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(
function* changing_cascading_result_for_main_thread_animation() {
var div = addDiv(null, { style: 'background-color: blue' });
var animation = div.animate({ opacity: [0, 1],
backgroundColor: ['green', 'red'] },
100 * MS_PER_SEC);
yield animation.ready;
ok(animation.isRunningOnCompositor,
'The opacity animation is running on the compositor');
// Make the background-color style as !important to cause an update
// to the cascade.
// Bug 1300982: The background-color animation should be no longer
// running on the main thread.
div.style.setProperty('background-color', '1', 'important');
var markers = yield observeStyling(5);
todo_is(markers.length, 0,
'Changing cascading result for the property running on the main ' +
'thread does not cause synchronization layer of opacity animation ' +
'running on the compositor');
yield ensureElementRemoval(div);
}
);
add_task(function* restyling_for_animation_on_orphaned_element() {
var div = addDiv(null);
var animation = div.animate({ marginLeft: [ '0px', '100px' ] },
100 * MS_PER_SEC);
yield animation.ready;
div.remove();
var markers = yield observeStyling(5);
is(markers.length, 0,
'Animation on orphaned element should not cause restyles');
document.body.appendChild(div);
markers = yield observeStyling(1);
// We are observing restyles in rAF callback which is processed before
// restyling process in each frame, so in the first frame there should be
// no observed restyle since we don't process restyle while the element
// is not attached to the document.
is(markers.length, 0,
'We observe no restyle in the first frame right after re-atatching ' +
'to the document');
markers = yield observeStyling(5);
is(markers.length, 5,
'Animation on re-attached to the document begins to update style');
yield ensureElementRemoval(div);
});
add_task_if_omta_enabled(
// Tests that if we remove an element from the document whose animation
// cascade needs recalculating, that it is correctly updated when it is
// re-attached to the document.
function* restyling_for_opacity_animation_on_re_attached_element() {
var div = addDiv(null, { style: 'opacity: 1 ! important' });
var animation = div.animate({ opacity: [0, 1] }, 100 * MS_PER_SEC);
yield animation.ready;
ok(!animation.isRunningOnCompositor,
'The opacity animation overridden by an !important rule is NOT ' +
'running on the compositor');
// Drop the !important rule to update the cascade.
div.style.setProperty('opacity', '1', '');
div.remove();
var markers = yield observeStyling(5);
is(markers.length, 0,
'Opacity animation on orphaned element should not cause restyles');
document.body.appendChild(div);
// Need a frame to give the animation a chance to be sent to the
// compositor.
yield waitForFrame();
ok(animation.isRunningOnCompositor,
'The opacity animation which is no longer overridden by the ' +
'!important rule begins running on the compositor even if the ' +
'!important rule had been dropped before the target element was ' +
'removed');
yield ensureElementRemoval(div);
}
);
});
</script>
</body>
|
