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4505c339ab
Differential Revision: https://phabricator.services.mozilla.com/D43992 --HG-- extra : moz-landing-system : lando
49 lines
1.7 KiB
HTML
49 lines
1.7 KiB
HTML
<!DOCTYPE HTML>
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<title>Test for bug 1576229 - Nodes in Shadow DOM react properly to dynamic changes in user sheets</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" href="/tests/SimpleTest/test.css">
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<div></div>
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<span id="host" style="display: block"></span>
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<script>
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const gIOService = SpecialPowers.Cc["@mozilla.org/network/io-service;1"]
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.getService(SpecialPowers.Ci.nsIIOService)
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const gSSService = SpecialPowers.Cc["@mozilla.org/content/style-sheet-service;1"]
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.getService(SpecialPowers.Ci.nsIStyleSheetService);
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const windowUtils = SpecialPowers.getDOMWindowUtils(window);
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function loadUserSheet(style) {
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const uri = gIOService.newURI("data:text/css," + style);
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windowUtils.loadSheet(uri, windowUtils.USER_SHEET);
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}
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SimpleTest.waitForExplicitFinish();
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onload = function() {
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loadUserSheet(`
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div {
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width: 100px;
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height: 100px;
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background-color: red;
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}
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.foo {
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background-color: green;
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}
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`);
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let host = document.querySelector("#host");
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host.attachShadow({ mode: "open" }).innerHTML = `
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<div></div>
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`;
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let light = document.querySelector('div');
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let shadow = host.shadowRoot.querySelector('div');
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is(getComputedStyle(light).backgroundColor, "rgb(255, 0, 0)", "User sheet works in light DOM");
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is(getComputedStyle(shadow).backgroundColor, "rgb(255, 0, 0)", "User sheet works in shadow DOM");
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light.classList.add("foo");
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shadow.classList.add("foo");
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is(getComputedStyle(light).backgroundColor, "rgb(0, 128, 0)", "Dynamic change for user sheet works in light DOM");
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is(getComputedStyle(shadow).backgroundColor, "rgb(0, 128, 0)", "Dynamic change for user sheet works in shadow DOM");
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SimpleTest.finish();
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}
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</script>
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