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products/Sources/formale Sprachen/C/Firefox/gfx/layers/apz/test/mochitest/ (Firefox Browser Version 153.0.1^©) Datei vom 27.6.2026 mit Größe 2 kB

Quelle test_bug1253683.html

Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/gfx/layers/apz/test/mochitest/test_bug1253683.html

<!DOCTYPE HTML>
<html>

<head>
  <title>Test to ensure non-scrollable frames don't get layerized</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <script src="/tests/SimpleTest/paint_listener.js"></script>
  <script type="application/javascript" src="apz_test_native_event_utils.js"></script>
  <script type="application/javascript" src="apz_test_utils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<p id="display"></p>
<div id="container" style="height: 500px; overflow:scroll">
  <pre id="no_layer" style="background-color: #f5f5f5; margin: 15px; padding: 15px; margin-top: 100px; border: 1px solid #eee; overflow:scroll">sample code here</pre>
  <div style="height: 5000px">spacer to make the 'container' div the root scrollable element</div>
</div>
<pre id="test">
<script type="application/javascript">

async function test() {
  var container = document.getElementById("container");
  var no_layer = document.getElementById("no_layer");

  // Check initial state
  is(container.scrollTop, 0, "Initial scrollY should be 0");
  ok(!isLayerized("no_layer"), "initially 'no_layer' should not be layerized");

  // Scrolling over outer1 should layerize outer1, but not inner1.
  await promiseMoveMouseAndScrollWheelOver(no_layer, 10, 10, true);
  await promiseAllPaintsDone();
  await promiseOnlyApzControllerFlushed();

  ok(container.scrollTop > 0, "We should have scrolled the body");
  ok(!isLayerized("no_layer"), "no_layer should still not be layerized");
}

if (isApzEnabled()) {
  SimpleTest.waitForExplicitFinish();

  // Turn off displayport expiry so that we don't miss failures where the
  // displayport is set and expired before we check for layerization.
  // Also enable APZ test logging, since we use that data to determine whether
  // a scroll frame was layerized.
  pushPrefs([["apz.displayport_expiry_ms", 0],
             ["apz.test.logging_enabled", true]])
  .then(waitUntilApzStable)
  .then(forceLayerTreeToCompositor)
  .then(test)
  .then(SimpleTest.finish, SimpleTest.finishWithFailure);
}

</script>
</pre>
</body>
</html>

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¤ Dauer der Verarbeitung: 0.3 Sekunden ¤

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