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43 lines
1.6 KiB
HTML
43 lines
1.6 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=806506
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-->
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<head>
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<title>Test for ShadowRoot style order</title>
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<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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</head>
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<body>
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<div id="container"></div>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=806506">Bug 806506</a>
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<script>
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// Create ShadowRoot.
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var container = document.getElementById("container");
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var elem = document.createElement("div");
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container.appendChild(elem); // Put ShadowRoot host in document.
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var root = elem.createShadowRoot();
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// Style elements that will be appended into the ShadowRoot.
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var tallShadowStyle = document.createElement("style");
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tallShadowStyle.innerHTML = ".tall { height: 100px; }";
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var veryTallShadowStyle = document.createElement("style");
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veryTallShadowStyle.innerHTML = ".tall { height: 200px; }";
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var divToStyle = document.createElement("div");
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divToStyle.setAttribute("class", "tall");
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root.appendChild(divToStyle);
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// Make sure the styles are applied in tree order.
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root.appendChild(tallShadowStyle);
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is(root.styleSheets.length, 1, "ShadowRoot should have one style sheet.");
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is(window.getComputedStyle(divToStyle, null).getPropertyValue("height"), "100px", "Style in ShadowRoot should apply to elements in ShadowRoot.");
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root.appendChild(veryTallShadowStyle);
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is(root.styleSheets.length, 2, "ShadowRoot should have two style sheets.");
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is(window.getComputedStyle(divToStyle, null).getPropertyValue("height"), "200px", "Style in ShadowRoot should apply to elements in ShadowRoot in tree order.");
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</script>
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</body>
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</html>
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