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products/Sources/formale Sprachen/C/Firefox/dom/animation/test/mozilla/ (Browser von der Mozilla Stiftung Version 136.0.1^©) Datei vom 10.2.2025 mit Größe 7 kB

Quelle test_hide_and_show.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/dom/animation/test/mozilla/test_hide_and_show.html

<!doctype html>
<meta charset=utf-8>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../testcommon.js"></script>
<style>
@keyframes move {
  100% {
    transform: translateX(100px);
  }
}

div.pseudo::before {
  animation: move 0.01s;
  content: 'content';
}

</style>
<body>
<div id="log"></div>
<script>
'use strict';

test(function(t) {
  var div = addDiv(t, { style: 'animation: move 100s infinite' });
  assert_equals(div.getAnimations().length, 1,
                'display:initial element has animations');

  div.style.display = 'none';
  assert_equals(div.getAnimations().length, 0,
                'display:none element has no animations');
}, 'Animation stops playing when the element style display is set to "none"');

test(function(t) {
  var parentElement = addDiv(t);
  var div = addDiv(t, { style: 'animation: move 100s infinite' });
  parentElement.appendChild(div);
  assert_equals(div.getAnimations().length, 1,
                'display:initial element has animations');

  parentElement.style.display = 'none';
  assert_equals(div.getAnimations().length, 0,
                'Element in display:none subtree has no animations');
}, 'Animation stops playing when its parent element style display is set ' +
   'to "none"');

test(function(t) {
  var div = addDiv(t, { style: 'animation: move 100s infinite' });
  assert_equals(div.getAnimations().length, 1,
                'display:initial element has animations');

  div.style.display = 'none';
  assert_equals(div.getAnimations().length, 0,
                'display:none element has no animations');

  div.style.display = '';
  assert_equals(div.getAnimations().length, 1,
                'Element which is no longer display:none has animations ' +
                'again');
}, 'Animation starts playing when the element gets shown from ' +
   '"display:none" state');

test(function(t) {
  var parentElement = addDiv(t);
  var div = addDiv(t, { style: 'animation: move 100s infinite' });
  parentElement.appendChild(div);
  assert_equals(div.getAnimations().length, 1,
                'display:initial element has animations');

  parentElement.style.display = 'none';
  assert_equals(div.getAnimations().length, 0,
                'Element in display:none subtree has no animations');

  parentElement.style.display = '';
  assert_equals(div.getAnimations().length, 1,
                'Element which is no longer in display:none subtree has ' +
                'animations again');
}, 'Animation starts playing when its parent element is shown from ' +
   '"display:none" state');

test(function(t) {
  var div = addDiv(t, { style: 'animation: move 100s forwards' });
  assert_equals(div.getAnimations().length, 1,
                'display:initial element has animations');

  var animation = div.getAnimations()[0];
  animation.finish();
  assert_equals(div.getAnimations().length, 1,
                'Element has finished animation if the animation ' +
                'fill-mode is forwards');

  div.style.display = 'none';
  assert_equals(animation.playState, 'idle',
                'The animation.playState should be idle');

  assert_equals(div.getAnimations().length, 0,
                'display:none element has no animations');

  div.style.display = '';
  assert_equals(div.getAnimations().length, 1,
                'Element which is no longer display:none has animations ' +
                'again');
  assert_not_equals(div.getAnimations()[0], animation,
                    'Restarted animation is a newly-generated animation');

}, 'Animation which has already finished starts playing when the element ' +
   'gets shown from "display:none" state');

test(function(t) {
  var parentElement = addDiv(t);
  var div = addDiv(t, { style: 'animation: move 100s forwards' });
  parentElement.appendChild(div);
  assert_equals(div.getAnimations().length, 1,
                'display:initial element has animations');

  var animation = div.getAnimations()[0];
  animation.finish();
  assert_equals(div.getAnimations().length, 1,
                'Element has finished animation if the animation ' +
                'fill-mode is forwards');

  parentElement.style.display = 'none';
  assert_equals(animation.playState, 'idle',
                'The animation.playState should be idle');
  assert_equals(div.getAnimations().length, 0,
                'Element in display:none subtree has no animations');

  parentElement.style.display = '';
  assert_equals(div.getAnimations().length, 1,
                'Element which is no longer in display:none subtree has ' +
                'animations again');

  assert_not_equals(div.getAnimations()[0], animation,
                    'Restarted animation is a newly-generated animation');

}, 'Animation with fill:forwards which has already finished starts playing ' +
   'when its parent element is shown from "display:none" state');

test(function(t) {
  var parentElement = addDiv(t);
  var div = addDiv(t, { style: 'animation: move 100s' });
  parentElement.appendChild(div);
  assert_equals(div.getAnimations().length, 1,
                'display:initial element has animations');

  var animation = div.getAnimations()[0];
  animation.finish();
  assert_equals(div.getAnimations().length, 0,
                'Element does not have finished animations');

  parentElement.style.display = 'none';
  assert_equals(animation.playState, 'idle',
                'The animation.playState should be idle');
  assert_equals(div.getAnimations().length, 0,
                'Element in display:none subtree has no animations');

  parentElement.style.display = '';
  assert_equals(div.getAnimations().length, 1,
                'Element which is no longer in display:none subtree has ' +
                'animations again');

  assert_not_equals(div.getAnimations()[0], animation,
                    'Restarted animation is a newly-generated animation');

}, 'CSS Animation which has already finished starts playing when its parent ' +
   'element is shown from "display:none" state');

promise_test(function(t) {
  var div = addDiv(t, { 'class': 'pseudo' });
  var eventWatcher = new EventWatcher(t, div, 'animationend');

  assert_equals(document.getAnimations().length, 1,
                'CSS animation on pseudo element');

  return eventWatcher.wait_for('animationend').then(function() {
    assert_equals(document.getAnimations().length, 0,
                  'No CSS animation on pseudo element after the animation ' +
                  'finished');

    // Remove the class which generated this pseudo element.
    div.classList.remove('pseudo');

    // We need to wait for two frames to process re-framing.
    // The callback of 'animationend' is processed just before rAF callbacks,
    // and rAF callbacks are processed before re-framing process, so waiting for
    // one rAF callback is not sufficient.
    return waitForAnimationFrames(2);
  }).then(function() {
    // Add the class again to re-generate pseudo element.
    div.classList.add('pseudo');
    assert_equals(document.getAnimations().length, 1,
                  'A new CSS animation on pseudo element');
  });
}, 'CSS animation on pseudo element restarts after the pseudo element that ' +
   'had a finished CSS animation is re-generated');

</script>
</body>

Messung V0.5

¤ Dauer der Verarbeitung: 0.21 Sekunden (vorverarbeitet) ¤

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