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+<!doctype html>
+<meta charset=utf-8>
+<title>Tests for CSS-Transition events</title>
+<link rel="help" href="https://drafts.csswg.org/css-transitions-2/#transition-events">
+<script src="../testcommon.js"></script>
+<body>
+<script>
+'use strict';
+
+/**
+ * Helper class to record the elapsedTime member of each event.
+ * The EventWatcher class in testharness.js allows us to wait on
+ * multiple events in a certain order but only records the event
+ * parameters of the most recent event.
+ */
+function TransitionEventHandler(target) {
+ this.target = target;
+ this.target.ontransitionrun = function(evt) {
+ this.transitionrun = evt.elapsedTime;
+ }.bind(this);
+ this.target.ontransitionstart = function(evt) {
+ this.transitionstart = evt.elapsedTime;
+ }.bind(this);
+ this.target.ontransitionend = function(evt) {
+ this.transitionend = evt.elapsedTime;
+ }.bind(this);
+ this.target.ontransitioncancel = function(evt) {
+ this.transitioncancel = evt.elapsedTime;
+ }.bind(this);
+}
+
+TransitionEventHandler.prototype.clear = function() {
+ this.transitionrun = undefined;
+ this.transitionstart = undefined;
+ this.transitionend = undefined;
+ this.transitioncancel = undefined;
+};
+
+function setupTransition(t, transitionStyle) {
+ var div = addDiv(t, { style: 'transition: ' + transitionStyle });
+ var watcher = new EventWatcher(t, div, [ 'transitionrun',
+ 'transitionstart',
+ 'transitionend',
+ 'transitioncancel' ]);
+ flushComputedStyle(div);
+
+ div.style.marginLeft = '100px';
+ var transition = div.getAnimations()[0];
+
+ return [transition, watcher, div];
+}
+
+// On the next frame (i.e. when events are queued), whether or not the
+// transition is still pending depends on the implementation.
+promise_test(function(t) {
+ var [transition, watcher] =
+ setupTransition(t, 'margin-left 100s 100s');
+ return watcher.wait_for('transitionrun').then(function(evt) {
+ assert_equals(evt.elapsedTime, 0.0);
+ });
+}, 'Idle -> Pending or Before');
+
+promise_test(function(t) {
+ var [transition, watcher] =
+ setupTransition(t, 'margin-left 100s 100s');
+ // Force the transition to leave the idle phase
+ transition.startTime = document.timeline.currentTime;
+ return watcher.wait_for('transitionrun').then(function(evt) {
+ assert_equals(evt.elapsedTime, 0.0);
+ });
+}, 'Idle -> Before');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s 100s');
+ var handler = new TransitionEventHandler(div);
+
+ // Seek to Active phase.
+ transition.currentTime = 100 * MS_PER_SEC;
+ transition.pause();
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function(evt) {
+ assert_equals(handler.transitionrun, 0.0);
+ assert_equals(handler.transitionstart, 0.0);
+ });
+}, 'Idle or Pending -> Active');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s 100s');
+ var handler = new TransitionEventHandler(div);
+
+ // Seek to After phase.
+ transition.finish();
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart',
+ 'transitionend' ]).then(function(evt) {
+ assert_equals(handler.transitionrun, 0.0);
+ assert_equals(handler.transitionstart, 0.0);
+ assert_equals(handler.transitionend, 100.0);
+ });
+}, 'Idle or Pending -> After');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s 100s');
+
+ return Promise.all([ watcher.wait_for('transitionrun'),
+ transition.ready ]).then(function() {
+ // Make idle
+ div.style.display = 'none';
+ flushComputedStyle(div);
+ return watcher.wait_for('transitioncancel');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 0.0);
+ });
+}, 'Before -> Idle (display: none)');
+
+promise_test(function(t) {
+ var [transition, watcher] =
+ setupTransition(t, 'margin-left 100s 100s');
+
+ return Promise.all([ watcher.wait_for('transitionrun'),
+ transition.ready ]).then(function() {
+ // Make idle
+ transition.timeline = null;
+ return watcher.wait_for('transitioncancel');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 0.0);
+ });
+}, 'Before -> Idle (Animation.timeline = null)');
+
+promise_test(function(t) {
+ var [transition, watcher] =
+ setupTransition(t, 'margin-left 100s 100s');
+
+ return Promise.all([ watcher.wait_for('transitionrun'),
+ transition.ready ]).then(function() {
+ transition.currentTime = 100 * MS_PER_SEC;
+ return watcher.wait_for('transitionstart');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 0.0);
+ });
+}, 'Before -> Active');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s 100s');
+ var handler = new TransitionEventHandler(div);
+
+ return Promise.all([ watcher.wait_for('transitionrun'),
+ transition.ready ]).then(function() {
+ // Seek to After phase.
+ transition.currentTime = 200 * MS_PER_SEC;
+ return watcher.wait_for([ 'transitionstart', 'transitionend' ]);
+ }).then(function(evt) {
+ assert_equals(handler.transitionstart, 0.0);
+ assert_equals(handler.transitionend, 100.0);
+ });
+}, 'Before -> After');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s');
+
+ // Seek to Active start position.
+ transition.pause();
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function(evt) {
+ // Make idle
+ div.style.display = 'none';
+ flushComputedStyle(div);
+ return watcher.wait_for('transitioncancel');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 0.0);
+ });
+}, 'Active -> Idle, no delay (display: none)');
+
+promise_test(function(t) {
+ var [transition, watcher] =
+ setupTransition(t, 'margin-left 100s');
+
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function(evt) {
+ // Make idle
+ transition.currentTime = 0;
+ transition.timeline = null;
+ return watcher.wait_for('transitioncancel');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 0.0);
+ });
+}, 'Active -> Idle, no delay (Animation.timeline = null)');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s 100s');
+ // Pause so the currentTime is fixed and we can accurately compare the event
+ // time in transition cancel events.
+ transition.pause();
+
+ // Seek to Active phase.
+ transition.currentTime = 100 * MS_PER_SEC;
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function(evt) {
+ // Make idle
+ div.style.display = 'none';
+ flushComputedStyle(div);
+ return watcher.wait_for('transitioncancel');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 0.0);
+ });
+}, 'Active -> Idle, with positive delay (display: none)');
+
+promise_test(function(t) {
+ var [transition, watcher] =
+ setupTransition(t, 'margin-left 100s 100s');
+
+ // Seek to Active phase.
+ transition.currentTime = 100 * MS_PER_SEC;
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function(evt) {
+ // Make idle
+ transition.currentTime = 100 * MS_PER_SEC;
+ transition.timeline = null;
+ return watcher.wait_for('transitioncancel');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 0.0);
+ });
+}, 'Active -> Idle, with positive delay (Animation.timeline = null)');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s -50s');
+
+ // Pause so the currentTime is fixed and we can accurately compare the event
+ // time in transition cancel events.
+ transition.pause();
+
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function(evt) {
+ // Make idle
+ div.style.display = 'none';
+ flushComputedStyle(div);
+ return watcher.wait_for('transitioncancel');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 50.0);
+ });
+}, 'Active -> Idle, with negative delay (display: none)');
+
+promise_test(function(t) {
+ var [transition, watcher] =
+ setupTransition(t, 'margin-left 100s -50s');
+
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function(evt) {
+ // Make idle
+ transition.currentTime = 50 * MS_PER_SEC;
+ transition.timeline = null;
+ return watcher.wait_for('transitioncancel');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 0.0);
+ });
+}, 'Active -> Idle, with negative delay (Animation.timeline = null)');
+
+promise_test(function(t) {
+ var [transition, watcher] =
+ setupTransition(t, 'margin-left 100s 100s');
+ // Seek to Active phase.
+ transition.currentTime = 100 * MS_PER_SEC;
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function(evt) {
+ // Seek to Before phase.
+ transition.currentTime = 0;
+ return watcher.wait_for('transitionend');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 0.0);
+ });
+}, 'Active -> Before');
+
+promise_test(function(t) {
+ var [transition, watcher] =
+ setupTransition(t, 'margin-left 100s 100s');
+ // Seek to Active phase.
+ transition.currentTime = 100 * MS_PER_SEC;
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function(evt) {
+ // Seek to After phase.
+ transition.currentTime = 200 * MS_PER_SEC;
+ return watcher.wait_for('transitionend');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 100.0);
+ });
+}, 'Active -> After');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s 100s');
+ var handler = new TransitionEventHandler(div);
+
+ // Seek to After phase.
+ transition.finish();
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart',
+ 'transitionend' ]).then(function(evt) {
+ // Seek to Before phase.
+ transition.currentTime = 0;
+ return watcher.wait_for([ 'transitionstart', 'transitionend' ]);
+ }).then(function(evt) {
+ assert_equals(handler.transitionstart, 100.0);
+ assert_equals(handler.transitionend, 0.0);
+ });
+}, 'After -> Before');
+
+promise_test(function(t) {
+ var [transition, watcher] =
+ setupTransition(t, 'margin-left 100s 100s');
+ // Seek to After phase.
+ transition.finish();
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart',
+ 'transitionend' ]).then(function(evt) {
+ // Seek to Active phase.
+ transition.currentTime = 100 * MS_PER_SEC;
+ return watcher.wait_for('transitionstart');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 100.0);
+ });
+}, 'After -> Active');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s -50s');
+ var handler = new TransitionEventHandler(div);
+
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function() {
+ assert_equals(handler.transitionrun, 50.0);
+ assert_equals(handler.transitionstart, 50.0);
+ transition.finish();
+ return watcher.wait_for('transitionend');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 100.0);
+ });
+}, 'Calculating the interval start and end time with negative start delay.');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s 100s');
+ var handler = new TransitionEventHandler(div);
+
+ return watcher.wait_for('transitionrun').then(function(evt) {
+ // We can't set the end delay via generated effect timing.
+ // Because CSS-Transition use the AnimationEffectTimingReadOnly.
+ transition.effect = new KeyframeEffect(div,
+ { marginleft: [ '0px', '100px' ]},
+ { duration: 100 * MS_PER_SEC,
+ endDelay: -50 * MS_PER_SEC });
+ // Seek to Before and play.
+ transition.cancel();
+ transition.play();
+ return watcher.wait_for([ 'transitioncancel',
+ 'transitionrun',
+ 'transitionstart' ]);
+ }).then(function() {
+ assert_equals(handler.transitionstart, 0.0);
+
+ // Seek to After phase.
+ transition.finish();
+ return watcher.wait_for('transitionend');
+ }).then(function(evt) {
+ assert_equals(evt.elapsedTime, 50.0);
+ });
+}, 'Calculating the interval start and end time with negative end delay.');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s 100s');
+
+ return watcher.wait_for('transitionrun').then(function() {
+ // Make idle
+ div.style.display = 'none';
+ flushComputedStyle(div);
+ return watcher.wait_for('transitioncancel');
+ }).then(function() {
+ transition.cancel();
+ // Then wait a couple of frames and check that no event was dispatched
+ return waitForAnimationFrames(2);
+ });
+}, 'Call Animation.cancel after cancelling transition.');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s 100s');
+
+ return watcher.wait_for('transitionrun').then(function(evt) {
+ // Make idle
+ div.style.display = 'none';
+ flushComputedStyle(div);
+ transition.play();
+ watcher.wait_for([ 'transitioncancel',
+ 'transitionrun',
+ 'transitionstart' ]);
+ });
+}, 'Restart transition after cancelling transition immediately');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s 100s');
+
+ return watcher.wait_for('transitionrun').then(function(evt) {
+ // Make idle
+ div.style.display = 'none';
+ flushComputedStyle(div);
+ transition.play();
+ transition.cancel();
+ return watcher.wait_for('transitioncancel');
+ }).then(function(evt) {
+ // Then wait a couple of frames and check that no event was dispatched
+ return waitForAnimationFrames(2);
+ });
+}, 'Call Animation.cancel after restarting transition immediately');
+
+promise_test(function(t) {
+ var [transition, watcher] =
+ setupTransition(t, 'margin-left 100s');
+
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function(evt) {
+ // Make idle
+ transition.timeline = null;
+ return watcher.wait_for('transitioncancel');
+ }).then(function(evt) {
+ transition.timeline = document.timeline;
+ transition.play();
+
+ return watcher.wait_for(['transitionrun', 'transitionstart']);
+ });
+}, 'Set timeline and play transition after clear the timeline');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s');
+
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function() {
+ transition.cancel();
+ return watcher.wait_for('transitioncancel');
+ }).then(function() {
+ // Make After phase
+ transition.effect = null;
+
+ // Then wait a couple of frames and check that no event was dispatched
+ return waitForAnimationFrames(2);
+ });
+}, 'Set null target effect after cancel the transition');
+
+promise_test(function(t) {
+ var [transition, watcher, div] =
+ setupTransition(t, 'margin-left 100s');
+
+ return watcher.wait_for([ 'transitionrun',
+ 'transitionstart' ]).then(function(evt) {
+ transition.effect = null;
+ return watcher.wait_for('transitionend');
+ }).then(function(evt) {
+ transition.cancel();
+ return watcher.wait_for('transitioncancel');
+ });
+}, 'Cancel the transition after clearing the target effect');
+
+done();
+</script>
+</body>
+</html>
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-10 06:54:06 +0000