55 lines
1.4 KiB
HTML
55 lines
1.4 KiB
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<style>
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body {
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height: 2000px;
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}
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#test {
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height: 200px;
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width: 250px;
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border: 1px solid black;
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background-image: linear-gradient(blue, green);
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background-size: 100% 300px;
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background-attachment: fixed;
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}
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</style>
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<script>
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if (window.testRunner) {
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testRunner.dumpAsText();
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testRunner.waitUntilDone();
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}
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function documentLoaded()
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{
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// Timeout is required to allow layers to paint before the scroll.
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window.setTimeout(doTest, 0);
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}
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function doTest()
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{
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if (window.internals)
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window.internals.startTrackingRepaints();
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window.scrollTo(0, 100);
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if (window.internals)
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document.getElementById('repaintRects').textContent = window.internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_REPAINT_RECTS);
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if (window.testRunner)
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testRunner.notifyDone();
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}
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window.addEventListener('load', documentLoaded, false);
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</script>
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</head>
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<body>
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<p>We should only repaint the bounds of the element with a fixed background.</p>
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<div id="test"></div>
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<pre id="repaintRects"></pre>
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</body>
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</html>
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