252 lines
8.4 KiB
HTML
252 lines
8.4 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>Canceling a CSS transition</title>
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<link rel="help" href="https://drafts.csswg.org/css-transitions/#starting">
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<!-- TODO: Add a more specific link for this once it is specified. -->
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<link rel="help" href="https://drafts.csswg.org/css-transitions-2/#csstransition">
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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="support/helper.js"></script>
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<div id="log"></div>
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<script>
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'use strict';
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promise_test(async t => {
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const div = addDiv(t, { style: 'margin-left: 0px' });
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getComputedStyle(div).marginLeft;
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div.style.transition = 'margin-left 100s';
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div.style.marginLeft = '1000px';
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const transition = div.getAnimations()[0];
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await transition.ready;
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await waitForFrame();
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assert_not_equals(getComputedStyle(div).marginLeft, '1000px',
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'transform style is animated before canceling');
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transition.cancel();
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assert_equals(getComputedStyle(div).marginLeft, div.style.marginLeft,
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'transform style is no longer animated after canceling');
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}, 'Animated style is cleared after canceling a running CSS transition');
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promise_test(async t => {
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const div = addDiv(t, { style: 'margin-left: 0px' });
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getComputedStyle(div).marginLeft;
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div.style.transition = 'margin-left 100s';
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div.style.marginLeft = '1000px';
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const transition = div.getAnimations()[0];
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await transition.ready;
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transition.cancel();
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assert_equals(getComputedStyle(div).marginLeft, '1000px',
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'margin-left style is not animated after canceling');
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transition.play();
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assert_equals(getComputedStyle(div).marginLeft, '0px',
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'margin-left style is animated after re-starting transition');
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await transition.ready;
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assert_equals(transition.playState, 'running',
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'Transition succeeds in running after being re-started');
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}, 'After canceling a transition, it can still be re-used');
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promise_test(async t => {
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const div = addDiv(t, { style: 'margin-left: 0px' });
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getComputedStyle(div).marginLeft;
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div.style.transition = 'margin-left 100s';
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div.style.marginLeft = '1000px';
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const transition = div.getAnimations()[0];
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await transition.ready;
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transition.finish();
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transition.cancel();
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assert_equals(getComputedStyle(div).marginLeft, '1000px',
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'margin-left style is not animated after canceling');
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transition.play();
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assert_equals(getComputedStyle(div).marginLeft, '0px',
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'margin-left style is animated after re-starting transition');
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await transition.ready;
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assert_equals(transition.playState, 'running',
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'Transition succeeds in running after being re-started');
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}, 'After canceling a finished transition, it can still be re-used');
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test(t => {
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const div = addDiv(t, { style: 'margin-left: 0px' });
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getComputedStyle(div).marginLeft;
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div.style.transition = 'margin-left 100s';
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div.style.marginLeft = '1000px';
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const transition = div.getAnimations()[0];
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transition.cancel();
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assert_equals(getComputedStyle(div).marginLeft, '1000px',
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'margin-left style is not animated after canceling');
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// Trigger a change to a transition property and check that this
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// doesn't cause the animation to become live again
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div.style.transitionDuration = '200s';
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getComputedStyle(div).marginLeft;
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assert_equals(getComputedStyle(div).marginLeft, '1000px',
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'margin-left style is still not animated after updating'
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+ ' transition-duration');
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assert_equals(transition.playState, 'idle',
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'Transition is still idle after updating transition-duration');
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}, 'After canceling a transition, updating transition properties doesn\'t make'
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+ ' it live again');
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promise_test(async t => {
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const div = addDiv(t, { style: 'margin-left: 0px' });
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getComputedStyle(div).marginLeft;
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div.style.transition = 'margin-left 100s';
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div.style.marginLeft = '1000px';
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const transition = div.getAnimations()[0];
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await transition.ready;
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assert_equals(transition.playState, 'running');
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div.style.display = 'none';
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await waitForFrame();
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assert_equals(transition.playState, 'idle');
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assert_equals(getComputedStyle(div).marginLeft, '1000px');
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}, 'Setting display:none on an element cancels its transitions');
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promise_test(async t => {
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const parentDiv = addDiv(t);
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const childDiv = document.createElement('div');
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parentDiv.appendChild(childDiv);
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childDiv.setAttribute('style', 'margin-left: 0px');
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getComputedStyle(childDiv).marginLeft;
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childDiv.style.transition = 'margin-left 100s';
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childDiv.style.marginLeft = '1000px';
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const transition = childDiv.getAnimations()[0];
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await transition.ready;
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assert_equals(transition.playState, 'running');
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parentDiv.style.display = 'none';
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await waitForFrame();
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assert_equals(transition.playState, 'idle');
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assert_equals(getComputedStyle(childDiv).marginLeft, '1000px');
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}, 'Setting display:none cancels transitions on a child element');
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promise_test(async t => {
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const div = addDiv(t, { style: 'margin-left: 0px' });
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getComputedStyle(div).marginLeft;
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div.style.transition = 'margin-left 100s';
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div.style.marginLeft = '1000px';
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const transition = div.getAnimations()[0];
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await transition.ready;
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assert_equals(transition.playState, 'running');
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// Set an unrecognized property value
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div.style.transitionProperty = 'none';
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getComputedStyle(div).marginLeft;
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await waitForFrame();
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assert_equals(transition.playState, 'idle');
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assert_equals(getComputedStyle(div).marginLeft, '1000px');
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}, 'Removing a property from transition-property cancels transitions on that '+
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'property');
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promise_test(async t => {
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const div = addDiv(t, { style: 'margin-left: 0px' });
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getComputedStyle(div).marginLeft;
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div.style.transition = 'margin-left 100s';
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div.style.marginLeft = '1000px';
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const transition = div.getAnimations()[0];
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await transition.ready;
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assert_equals(transition.playState, 'running');
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div.style.transition = 'margin-left 10s -10s'; // combined duration is zero
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// Note that simply setting the combined duration to zero is not enough to
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// cancel the transition. We must also update the end value so that the,
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// "the end value of the running transition is not equal to the value of the
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// property in the after-change style" condition is true.
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//
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// (And note that the zero combined duration is not strictly necessary to
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// cancel the original transition--but it does ensure another transition is
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// not generated in its place.)
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div.style.marginLeft = '2000px';
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getComputedStyle(div).marginLeft;
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await waitForFrame();
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assert_equals(transition.playState, 'idle');
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assert_equals(getComputedStyle(div).marginLeft, '2000px');
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}, 'Setting zero combined duration');
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promise_test(async t => {
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const div = addDiv(t, { style: 'margin-left: 0px' });
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getComputedStyle(div).marginLeft;
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div.style.transition = 'margin-left 100s';
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div.style.marginLeft = '1000px';
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const transition = div.getAnimations()[0];
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await transition.ready;
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assert_equals(transition.playState, 'running');
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div.style.marginLeft = '2000px';
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getComputedStyle(div).marginLeft;
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await waitForFrame();
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assert_equals(transition.playState, 'idle');
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}, 'Changing style to another interpolable value cancels the original ' +
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'transition');
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promise_test(async t => {
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const div = addDiv(t, { style: 'margin-left: 0px' });
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getComputedStyle(div).marginLeft;
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div.style.transition = 'margin-left 100s';
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div.style.marginLeft = '1000px';
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const transition = div.getAnimations()[0];
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await transition.ready;
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assert_equals(transition.playState, 'running');
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div.style.marginLeft = 'auto';
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getComputedStyle(div).marginLeft;
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await waitForFrame();
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assert_equals(div.getAnimations().length, 0,
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'There should be no transitions');
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assert_equals(transition.playState, 'idle');
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}, 'An after-change style value can\'t be interpolated');
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promise_test(async t => {
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const div = addDiv(t, { style: 'margin-left: 0px' });
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getComputedStyle(div).marginLeft;
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div.style.transition = 'margin-left 100s';
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div.style.marginLeft = '1000px';
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const transition = div.getAnimations()[0];
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await transition.ready;
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assert_equals(transition.playState, 'running');
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div.style.marginLeft = '0px';
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getComputedStyle(div).marginLeft;
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await waitForFrame();
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assert_equals(transition.playState, 'idle');
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}, 'Reversing a running transition cancels the original transition');
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</script>
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