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71 lines
2.1 KiB
HTML
71 lines
2.1 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>Setting the current time of an animation</title>
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<link rel="help"
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href="https://drafts.csswg.org/web-animations-1/#setting-the-current-time-of-an-animation">
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<script src='/resources/testharness.js'></script>
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<script src='/resources/testharnessreport.js'></script>
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<script src='../../testcommon.js'></script>
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<body>
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<div id='log'></div>
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<script>
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'use strict';
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test(t => {
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const anim = new Animation();
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assert_equals(anim.playState, 'idle');
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assert_equals(anim.currentTime, null);
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// This should not throw because the currentTime is already null.
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anim.currentTime = null;
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}, 'Setting the current time of a pending animation to unresolved does not'
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+ ' throw a TypeError');
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promise_test(async t => {
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const anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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await anim.ready;
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assert_greater_than_equal(anim.currentTime, 0);
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assert_throws({ name: 'TypeError' }, () => {
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anim.currentTime = null;
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});
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}, 'Setting the current time of a playing animation to unresolved throws a'
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+ ' TypeError');
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promise_test(async t => {
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const anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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await anim.ready;
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anim.pause();
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assert_greater_than_equal(anim.currentTime, 0);
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assert_throws({ name: 'TypeError' }, () => {
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anim.currentTime = null;
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});
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}, 'Setting the current time of a paused animation to unresolved throws a'
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+ ' TypeError');
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promise_test(async t => {
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const anim = createDiv(t).animate(null, 100 * MS_PER_SEC);
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await anim.ready;
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anim.pause();
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// We should be pause-pending now
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assert_true(anim.pending);
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assert_equals(anim.playState, 'paused');
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// Apply a pending playback rate
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anim.updatePlaybackRate(2);
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assert_equals(anim.playbackRate, 1);
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// Setting the current time should apply the pending playback rate
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anim.currentTime = 50 * MS_PER_SEC;
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assert_equals(anim.playbackRate, 2);
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assert_false(anim.pending);
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// Sanity check that the current time is preserved
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assert_time_equals_literal(anim.currentTime, 50 * MS_PER_SEC);
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}, 'Setting the current time of a pausing animation applies a pending playback'
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+ ' rate');
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</script>
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</body>
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