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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/css/css-transitions/events-007.html | |
| parent | Initial commit. (diff) | |
| download | firefox-upstream.tar.xz firefox-upstream.zip | |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-transitions/events-007.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-transitions/events-007.html | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-transitions/events-007.html b/testing/web-platform/tests/css/css-transitions/events-007.html new file mode 100644 index 0000000000..610df6e85d --- /dev/null +++ b/testing/web-platform/tests/css/css-transitions/events-007.html @@ -0,0 +1,50 @@ +<!DOCTYPE html> +<html> +<head> +<meta charset="utf-8"> +<title>CSS Transitions Test: no transitionend event after display:none</title> +<link rel="author" title="Chris Rebert" href="http://chrisrebert.com"> +<link rel="help" href="http://www.w3.org/TR/css3-transitions/#transition-events"> +<link rel="help" href="https://lists.w3.org/Archives/Public/www-style/2015Apr/0405.html" title="[CSSWG] Minutes Telecon 2015-04-29" data-section-title="AnimationEnd events and display: none"> +<meta name="assert" content="Making an element display:none; while it has a transition in progress should prevent a transitionend event from getting fired."> + +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="./support/helper.js" type="text/javascript"></script> + +</head> +<body> + +<div id="log"></div> + +<script> +async_test(t => { + window.addEventListener('load', function () { + const div = addDiv(t, { 'style': 'transition: background-color 0.4s;' + + 'background-color: red' }); + getComputedStyle(div).backgroundColor; + div.style.backgroundColor = 'blue'; + + // Wait until the transition has started before registering the event + // listener. That way, if the transition finishes before the + // requestAnimationFrame callback is called and the element is made + // display:none, we won't report an error if transitionend is dispatched. + // + // In that case, there will be no indication that the test didn't test + // anything. However, that's preferable to having this test fail + // intermittently on slower automation hardware and end up being disabled + // as a result. + requestAnimationFrame(t.step_func(() => { + div.addEventListener('transitionend', t.step_func(() => { + assert_unreached('transitionend event didn\'t fire'); + }), false); + + div.style.display = 'none'; + + setTimeout(t.done.bind(t), 500); + })); + }, false); +}, 'transitionend should not be fired if the element is made display:none during the transition'); +</script> +</body> +</html> |