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314 lines
11 KiB
HTML
314 lines
11 KiB
HTML
<!doctype html>
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<html>
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<head>
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<meta charset=utf-8>
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<title>Tests for the effect of setting a CSS transition's
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Animation.currentTime</title>
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<style>
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.animated-div {
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margin-left: 100px;
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transition: margin-left 1000s linear 1000s;
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}
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</style>
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<script src="../testcommon.js"></script>
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</head>
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<body>
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<script type="text/javascript">
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'use strict';
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// TODO: add equivalent tests without an animation-delay, but first we need to
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// change the timing of animationstart dispatch. (Right now the animationstart
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// event will fire before the ready Promise is resolved if there is no
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// animation-delay.)
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// See https://bugzilla.mozilla.org/show_bug.cgi?id=1134163
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// TODO: Once the computedTiming property is implemented, add checks to the
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// checker helpers to ensure that computedTiming's properties are updated as
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// expected.
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// See https://bugzilla.mozilla.org/show_bug.cgi?id=1108055
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const ANIM_DELAY_MS = 1000000; // 1000s
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const ANIM_DUR_MS = 1000000; // 1000s
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/**
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* These helpers get the value that the currentTime needs to be set to, to put
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* an animation that uses the above ANIM_DELAY_MS and ANIM_DUR_MS values into
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* the middle of various phases or points through the active duration.
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*/
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function currentTimeForBeforePhase() {
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return ANIM_DELAY_MS / 2;
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}
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function currentTimeForActivePhase() {
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return ANIM_DELAY_MS + ANIM_DUR_MS / 2;
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}
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function currentTimeForAfterPhase() {
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return ANIM_DELAY_MS + ANIM_DUR_MS + ANIM_DELAY_MS / 2;
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}
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function currentTimeForStartOfActiveInterval() {
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return ANIM_DELAY_MS;
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}
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function currentTimeForFiftyPercentThroughActiveInterval() {
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return ANIM_DELAY_MS + ANIM_DUR_MS * 0.5;
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}
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function currentTimeForEndOfActiveInterval() {
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return ANIM_DELAY_MS + ANIM_DUR_MS;
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}
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// Expected computed 'margin-left' values at points during the active interval:
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// When we assert_between_inclusive using these values we could in theory cause
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// intermittent failure due to very long delays between paints, but since the
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// active duration is 1000s long, a delay would need to be around 100s to cause
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// that. If that's happening then there are likely other issues that should be
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// fixed, so a failure to make us look into that seems like a good thing.
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const INITIAL_POSITION = 100;
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const TEN_PCT_POSITION = 110;
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const FIFTY_PCT_POSITION = 150;
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const END_POSITION = 200;
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// The terms used for the naming of the following helper functions refer to
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// terms used in the Web Animations specification for specific phases of an
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// animation. The terms can be found here:
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//
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// http://w3c.github.io/web-animations/#animation-effect-phases-and-states
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// Called when currentTime is set to zero (the beginning of the start delay).
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function checkStateOnSettingCurrentTimeToZero(animation)
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{
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// We don't test animation.currentTime since our caller just set it.
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assert_equals(animation.playState, 'running',
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'Animation.playState should be "running" at the start of ' +
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'the start delay');
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assert_equals(animation.effect.target.style.animationPlayState, 'running',
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'Animation.effect.target.style.animationPlayState should be ' +
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'"running" at the start of the start delay');
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var div = animation.effect.target;
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var marginLeft = parseFloat(getComputedStyle(div).marginLeft);
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assert_equals(marginLeft, UNANIMATED_POSITION,
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'the computed value of margin-left should be unaffected ' +
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'at the beginning of the start delay');
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}
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// Called when the ready Promise's callbacks should happen
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function checkStateOnReadyPromiseResolved(animation)
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{
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// the 0.0001 here is for rounding error
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assert_less_than_equal(animation.currentTime,
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animation.timeline.currentTime - animation.startTime + 0.0001,
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'Animation.currentTime should be less than the local time ' +
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'equivalent of the timeline\'s currentTime on the first paint tick ' +
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'after animation creation');
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assert_equals(animation.playState, 'running',
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'Animation.playState should be "running" on the first paint ' +
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'tick after animation creation');
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var div = animation.effect.target;
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var marginLeft = parseFloat(getComputedStyle(div).marginLeft);
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assert_equals(marginLeft, INITIAL_POSITION,
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'the computed value of margin-left should be unaffected ' +
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'by an animation with a delay on ready Promise resolve');
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}
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// Called when currentTime is set to the time the active interval starts.
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function checkStateAtActiveIntervalStartTime(animation)
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{
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// We don't test animation.currentTime since our caller just set it.
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assert_equals(animation.playState, 'running',
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'Animation.playState should be "running" at the start of ' +
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'the active interval');
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var div = animation.effect.target;
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var marginLeft = parseFloat(getComputedStyle(div).marginLeft);
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assert_between_inclusive(marginLeft, INITIAL_POSITION, TEN_PCT_POSITION,
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'the computed value of margin-left should be close to the value at the ' +
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'beginning of the animation');
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}
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function checkStateAtFiftyPctOfActiveInterval(animation)
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{
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// We don't test animation.currentTime since our caller just set it.
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var div = animation.effect.target;
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var marginLeft = parseFloat(getComputedStyle(div).marginLeft);
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assert_equals(marginLeft, FIFTY_PCT_POSITION,
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'the computed value of margin-left should be half way through the ' +
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'animation at the midpoint of the active interval');
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}
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// Called when currentTime is set to the time the active interval ends.
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function checkStateAtActiveIntervalEndTime(animation)
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{
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// We don't test animation.currentTime since our caller just set it.
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assert_equals(animation.playState, 'finished',
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'Animation.playState should be "finished" at the end of ' +
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'the active interval');
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var div = animation.effect.target;
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var marginLeft = parseFloat(getComputedStyle(div).marginLeft);
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assert_equals(marginLeft, END_POSITION,
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'the computed value of margin-left should be the final transitioned-to ' +
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'value at the end of the active duration');
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}
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test(function(t)
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{
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var div = addDiv(t, {'class': 'animated-div'});
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flushComputedStyle(div);
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div.style.marginLeft = '200px'; // initiate transition
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var animation = div.getAnimations()[0];
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assert_equals(animation.currentTime, 0, 'currentTime should be zero');
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}, 'currentTime of a newly created transition is zero');
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test(function(t)
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{
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var div = addDiv(t, {'class': 'animated-div'});
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flushComputedStyle(div);
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div.style.marginLeft = '200px'; // initiate transition
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var animation = div.getAnimations()[0];
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// So that animation is running instead of paused when we set currentTime:
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animation.startTime = animation.timeline.currentTime;
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animation.currentTime = 10;
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assert_equals(animation.currentTime, 10,
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'Check setting of currentTime actually works');
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}, 'Sanity test to check round-tripping assigning to new animation\'s ' +
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'currentTime');
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async_test(function(t) {
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var div = addDiv(t, {'class': 'animated-div'});
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var eventWatcher = new EventWatcher(t, div, 'transitionend');
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flushComputedStyle(div);
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div.style.marginLeft = '200px'; // initiate transition
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var animation = div.getAnimations()[0];
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animation.ready.then(t.step_func(function() {
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checkStateOnReadyPromiseResolved(animation);
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animation.currentTime = currentTimeForStartOfActiveInterval();
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checkStateAtActiveIntervalStartTime(animation);
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animation.currentTime = currentTimeForFiftyPercentThroughActiveInterval();
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checkStateAtFiftyPctOfActiveInterval(animation);
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animation.currentTime = currentTimeForEndOfActiveInterval();
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return eventWatcher.wait_for('transitionend');
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})).then(t.step_func(function() {
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checkStateAtActiveIntervalEndTime(animation);
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})).catch(t.step_func(function(reason) {
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assert_unreached(reason);
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})).then(function() {
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t.done();
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});
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}, 'Skipping forward through transition');
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test(function(t) {
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var div = addDiv(t, {'class': 'animated-div'});
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var eventWatcher = new EventWatcher(t, div, 'transitionend');
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flushComputedStyle(div);
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div.style.marginLeft = '200px'; // initiate transition
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var animation = div.getAnimations()[0];
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// Unlike in the case of CSS animations, we cannot skip to the end and skip
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// backwards since when we reach the end the transition effect is removed and
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// changes to the Animation object no longer affect the element. For
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// this reason we only skip forwards as far as the 50% through point.
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animation.ready.then(t.step_func(function() {
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animation.currentTime = currentTimeForFiftyPercentThroughActiveInterval();
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checkStateAtFiftyPctOfActiveInterval(animation);
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animation.currentTime = currentTimeForStartOfActiveInterval();
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// Despite going backwards from being in the active interval to being
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// before it, we now expect a 'transitionend' event because the transition
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// should go from being active to inactive.
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//
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// Calling checkStateAtActiveIntervalStartTime will check computed style,
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// causing computed style to be updated and the 'transitionend' event to
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// be dispatched synchronously. We need to call wait_for first
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// otherwise eventWatcher will assert that the event was unexpected.
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eventWatcher.wait_for('transitionend').then(function() {
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t.done();
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});
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checkStateAtActiveIntervalStartTime(animation);
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}));
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}, 'Skipping backwards through transition');
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async_test(function(t) {
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var div = addDiv(t, {'class': 'animated-div'});
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flushComputedStyle(div);
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div.style.marginLeft = '200px'; // initiate transition
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var animation = div.getAnimations()[0];
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animation.ready.then(t.step_func(function() {
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var exception;
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try {
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animation.currentTime = null;
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} catch (e) {
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exception = e;
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}
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assert_equals(exception.name, 'TypeError',
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'Expect TypeError exception on trying to set ' +
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'Animation.currentTime to null');
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})).catch(t.step_func(function(reason) {
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assert_unreached(reason);
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})).then(function() {
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t.done();
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});
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}, 'Setting currentTime to null');
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async_test(function(t) {
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var div = addDiv(t, {'class': 'animated-div'});
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flushComputedStyle(div);
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div.style.marginLeft = '200px'; // initiate transition
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var animation = div.getAnimations()[0];
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var pauseTime;
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animation.ready.then(t.step_func(function() {
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assert_not_equals(animation.currentTime, null,
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'Animation.currentTime not null on ready Promise resolve');
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animation.pause();
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return animation.ready;
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})).then(t.step_func(function() {
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pauseTime = animation.currentTime;
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return waitForFrame();
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})).then(t.step_func(function() {
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assert_equals(animation.currentTime, pauseTime,
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'Animation.currentTime is unchanged after pausing');
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})).catch(t.step_func(function(reason) {
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assert_unreached(reason);
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})).then(function() {
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t.done();
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});
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}, 'Animation.currentTime after pausing');
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done();
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</script>
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</body>
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</html>
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