39 lines
1.4 KiB
HTML
39 lines
1.4 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 styling fallback content</title>
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<script type="text/javascript" src="head.js"></script>
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<script 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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<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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SimpleTest.waitForExplicitFinish();
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var content = '<div id="grabme"></div>';
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createIframe(content)
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.then((aDocument) => {
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var iframeWin = aDocument.defaultView;
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var host = aDocument.getElementById("grabme");
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var shadow = host.attachShadow({mode: "open"});
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shadow.innerHTML = '<style id="innerstyle"></style><span id="container"><slot><span id="innerspan">Hello</span></slot></span>';
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var innerStyle = shadow.getElementById("innerstyle");
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innerStyle.innerHTML = '#innerspan { margin-top: 10px; }';
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var innerSpan = shadow.getElementById("innerspan");
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is(iframeWin.getComputedStyle(innerSpan).getPropertyValue("margin-top"), "10px", "Default content should be style by id selector.");
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innerStyle.innerHTML = '#container > slot > #innerspan { margin-top: 30px; }';
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is(iframeWin.getComputedStyle(innerSpan).getPropertyValue("margin-top"), "30px", "Default content should be style by child combinators.");
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SimpleTest.finish();
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});
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</script>
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</body>
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</html>
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