gecko-dev/layout/style/test/test_video_object_fit.html

54 lines
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HTML

<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1065766
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1065766</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1065766">Mozilla Bug 1065766</a>
<div id="content" style="display: none">
<video id="myVideo"></video>
</div>
<pre id="test">
<script type="application/javascript">
"use strict";
/**
* Test for Bug 1065766
*
* This test verifies that <video> has 'object-fit:contain' by default, set via
* a UA stylesheet. (This is different from the property's initial value, which
* is "fill".)
*
* Spec reference:
* https://html.spec.whatwg.org/multipage/rendering.html#video-object-fit
*/
function checkStyle(elem, expectedVal, message) {
is(window.getComputedStyle(elem, "").objectFit, expectedVal, message);
}
function main() {
const videoElem = document.getElementById("myVideo");
checkStyle(videoElem, "contain",
"<video> should have 'object-fit:contain' by default");
// Make sure we can override this behavior (i.e. that the UA stylesheet
// doesn't use "!important" to make this style mandatory):
videoElem.style.objectFit = "cover";
checkStyle(videoElem, "cover",
"<video> should honor 'object-fit:cover' in inline style");
}
main();
</script>
</pre>
</body>
</html>