35 lines
1.6 KiB
HTML
35 lines
1.6 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1020244 -->
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<meta charset="utf-8">
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<title>Test for Bug 1020244 - Make sure anonymous content still works after a reflow (after the canvasframe has been reconstructed)</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>
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<div id="test-element" style="color:red;">text content</div>
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</div>
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<script>
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info("Inserting anonymous content into the document frame");
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let chromeDocument = SpecialPowers.wrap(document);
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let anonymousContent = chromeDocument.insertAnonymousContent();
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let testElement = document.querySelector("div");
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anonymousContent.root.appendChild(testElement.cloneNode(true));
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info("Modifying the style of an element in the anonymous content");
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anonymousContent.root.getElementById("test-element").style.color = "green";
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info("Toggling the display style on the document element to force reframing");
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// Note that we force sync reflows to make sure the canvasframe is recreated
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// synchronously.
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document.documentElement.style.display = "none";
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let forceFlush = document.documentElement.offsetHeight;
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document.documentElement.style.display = "block";
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forceFlush = document.documentElement.offsetHeight;
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info("Checking that the anonymous content can be retrieved still");
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let color = anonymousContent.root.getElementById("test-element").style.color;
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is(color, "green", "The anonymous content still exists after reflow");
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info("Removing the anonymous content");
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chromeDocument.removeAnonymousContent(anonymousContent);
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</script>
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