<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1253683 --> <head> <title>Test to ensure non-scrollable frames don't get layerized</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script> <script type="application/javascript" 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;version=1.7"> function* test(testDriver) { 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. yield moveMouseAndScrollWheelOver(no_layer, 10, 10, testDriver, true); yield waitForAllPaints(function() { flushApzRepaints(testDriver); }); 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(runContinuation(test)) .then(SimpleTest.finish); } </script> </pre> </body> </html>