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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/animation/test/css-animations/file_animation-pausing.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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+<!doctype html>
+<meta charset=utf-8>
+<script src="../testcommon.js"></script>
+<style>
+@keyframes anim {
+ 0% { margin-left: 0px }
+ 100% { margin-left: 10000px }
+}
+</style>
+<body>
+<script>
+'use strict';
+
+function getMarginLeft(cs) {
+ return parseFloat(cs.marginLeft);
+}
+
+promise_test(function(t) {
+ var div = addDiv(t);
+ var cs = window.getComputedStyle(div);
+ div.style.animation = 'anim 1000s paused';
+ var animation = div.getAnimations()[0];
+ assert_equals(getMarginLeft(cs), 0,
+ 'Initial value of margin-left is zero');
+ animation.play();
+
+ return animation.ready.then(waitForFrame).then(function() {
+ assert_true(getMarginLeft(cs) > 0,
+ 'Playing value of margin-left is greater than zero');
+ });
+}, 'play() overrides animation-play-state');
+
+promise_test(function(t) {
+ var div = addDiv(t);
+ var cs = window.getComputedStyle(div);
+ div.style.animation = 'anim 1000s paused';
+ var animation = div.getAnimations()[0];
+ assert_equals(getMarginLeft(cs), 0,
+ 'Initial value of margin-left is zero');
+
+ animation.pause();
+ div.style.animationPlayState = 'running';
+
+ return animation.ready.then(waitForFrame).then(function() {
+ assert_equals(cs.animationPlayState, 'running',
+ 'animation-play-state is running');
+ assert_equals(getMarginLeft(cs), 0,
+ 'Paused value of margin-left is zero');
+ });
+}, 'pause() overrides animation-play-state');
+
+promise_test(function(t) {
+ var div = addDiv(t);
+ var cs = window.getComputedStyle(div);
+ div.style.animation = 'anim 1000s paused';
+ var animation = div.getAnimations()[0];
+ assert_equals(getMarginLeft(cs), 0,
+ 'Initial value of margin-left is zero');
+ animation.play();
+ var previousAnimVal;
+
+ return animation.ready.then(function() {
+ div.style.animationPlayState = 'running';
+ cs.animationPlayState; // Trigger style resolution
+ return waitForFrame();
+ }).then(function() {
+ assert_equals(cs.animationPlayState, 'running',
+ 'animation-play-state is running');
+ div.style.animationPlayState = 'paused';
+ return animation.ready;
+ }).then(function() {
+ assert_equals(cs.animationPlayState, 'paused',
+ 'animation-play-state is paused');
+ previousAnimVal = getMarginLeft(cs);
+ return waitForFrame();
+ }).then(function() {
+ assert_equals(getMarginLeft(cs), previousAnimVal,
+ 'Animated value of margin-left does not change when'
+ + ' paused by style');
+ });
+}, 'play() is overridden by later setting "animation-play-state: paused"');
+
+promise_test(function(t) {
+ var div = addDiv(t);
+ var cs = window.getComputedStyle(div);
+ div.style.animation = 'anim 1000s';
+ var animation = div.getAnimations()[0];
+ assert_equals(getMarginLeft(cs), 0,
+ 'Initial value of margin-left is zero');
+
+ // Set the specified style first. If implementations fail to
+ // apply the style changes first, they will ignore the redundant
+ // call to play() and fail to correctly override the pause style.
+ div.style.animationPlayState = 'paused';
+ animation.play();
+ var previousAnimVal = getMarginLeft(cs);
+
+ return animation.ready.then(waitForFrame).then(function() {
+ assert_equals(cs.animationPlayState, 'paused',
+ 'animation-play-state is paused');
+ assert_true(getMarginLeft(cs) > previousAnimVal,
+ 'Playing value of margin-left is increasing');
+ });
+}, 'play() flushes pending changes to animation-play-state first');
+
+promise_test(function(t) {
+ var div = addDiv(t);
+ var cs = window.getComputedStyle(div);
+ div.style.animation = 'anim 1000s paused';
+ var animation = div.getAnimations()[0];
+ assert_equals(getMarginLeft(cs), 0,
+ 'Initial value of margin-left is zero');
+
+ // Unlike the previous test for play(), since calling pause() is sticky,
+ // we'll apply it even if the underlying style also says we're paused.
+ //
+ // We would like to test that implementations flush styles before running
+ // pause() but actually there's no style we can currently set that will
+ // change the behavior of pause(). That may change in the future
+ // (e.g. if we introduce animation-timeline or animation-playback-rate etc.).
+ //
+ // For now this just serves as a sanity check that we do the same thing
+ // even if we set style before calling the API.
+ div.style.animationPlayState = 'running';
+ animation.pause();
+ var previousAnimVal = getMarginLeft(cs);
+
+ return animation.ready.then(waitForFrame).then(function() {
+ assert_equals(cs.animationPlayState, 'running',
+ 'animation-play-state is running');
+ assert_equals(getMarginLeft(cs), previousAnimVal,
+ 'Paused value of margin-left does not change');
+ });
+}, 'pause() applies pending changes to animation-play-state first');
+// (Note that we can't actually test for this; see comment above, in test-body.)
+
+promise_test(function(t) {
+ var div = addDiv(t, { style: 'animation: anim 1000s' });
+ var animation = div.getAnimations()[0];
+ var readyPromiseRun = false;
+
+ return animation.ready.then(function() {
+ div.style.animationPlayState = 'paused';
+ assert_equals(animation.playState, 'pending', 'Animation is pause pending');
+
+ // Set current time
+ animation.currentTime = 5 * MS_PER_SEC;
+ assert_equals(animation.playState, 'paused',
+ 'Animation is paused immediately after setting currentTime');
+ assert_equals(animation.startTime, null,
+ 'Animation startTime is unresolved immediately after ' +
+ 'setting currentTime');
+ assert_equals(animation.currentTime, 5 * MS_PER_SEC,
+ 'Animation currentTime does not change when forcing a ' +
+ 'pause operation to complete');
+
+ // The ready promise should now be resolved. If it's not then test will
+ // probably time out before anything else happens that causes it to resolve.
+ return animation.ready;
+ });
+}, 'Setting the current time completes a pending pause');
+
+done();
+</script>
+</body>