55 lines
1.2 KiB
HTML
55 lines
1.2 KiB
HTML
<!DOCTYPE html> <!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] -->
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<html>
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<head>
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<style>
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#scroller {
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margin: 50px;
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height: 512px;
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width: 400px;
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overflow-y: scroll;
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border: 1px solid black;
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}
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.contents {
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height: 3000px;
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background-image: repeating-linear-gradient(white, silver 400px);
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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 startTest()
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{
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requestAnimationFrame(() => {
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scroller.scrollTop = 20;
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requestAnimationFrame(() => {
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scroller.scrollTop = 200;
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document.getElementById('layers').innerText = internals.layerTreeAsText(document,
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internals.LAYER_TREE_INCLUDES_VISIBLE_RECTS | internals.LAYER_TREE_INCLUDES_TILE_CACHES);
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if (window.testRunner)
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testRunner.notifyDone();
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});
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});
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}
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window.addEventListener('load', startTest, false);
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</script>
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</head>
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<body>
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<div id="scroller">
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<div class="contents">
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</div>
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</div>
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<pre id="layers">Layer tree goes here</p>
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</body>
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</html>
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