зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1235899 - Add a test for frame reconstruction during an APZ scroll animation. r=botond
MozReview-Commit-ID: 3MDHWEfTD8e
This commit is contained in:
Kartikaya Gupta
Родитель
7c935ef5ba
Коммит
17f323d482
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@ -31,3 +31,4 @@ skip-if = (os == 'android') || (os == 'b2g') || (buildapp == 'mulet') # wheel ev
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skip-if = (os == 'android') || (os == 'b2g') || (buildapp == 'mulet') # wheel events not supported on mobile; see bug 1164274 for mulet
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[test_scroll_subframe_scrollbar.html]
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skip-if = (os == 'android') || (os == 'b2g') || (buildapp == 'mulet') # wheel events not supported on mobile; see bug 1164274 for mulet
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[test_frame_reconstruction.html]
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@ -0,0 +1,231 @@
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<!DOCTYPE html>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=1235899
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-->
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<head>
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<title>Test for bug 1235899</title>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
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<script type="application/javascript" src="/tests/SimpleTest/paint_listener.js"></script>
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<script type="application/javascript" src="apz_test_utils.js"></script>
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<script type="application/javascript" src="apz_test_native_event_utils.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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<style>
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.outer {
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height: 400px;
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width: 415px;
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overflow: hidden;
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position: relative;
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}
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.inner {
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height: 100%;
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outline: none;
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overflow-x: hidden;
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overflow-y: scroll;
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position: relative;
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scroll-behavior: smooth;
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}
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.outer.contentBefore::before {
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top: 0;
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content: '';
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display: block;
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height: 2px;
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position: absolute;
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width: 100%;
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z-index: 99;
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}
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</style>
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1235899">Mozilla Bug 1235899</a>
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<p id="display"></p>
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<div id="content">
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<p>You should be able to fling this list without it stopping abruptly</p>
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<div class="outer">
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<div class="inner">
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<ol>
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<li>Some text</li>
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<li>Some text</li>
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<li>Some text</li>
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<li>Some text</li>
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<li>Some text</li>
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<li>Some text</li>
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<li>Some text</li>
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<li>Some text</li>
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<li>Some text</li>
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</ol>
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</div>
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</div>
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</div>
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<pre id="test">
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<script type="application/javascript;version=1.7">
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function* runTest() {
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var elm = document.getElementsByClassName('inner')[0];
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elm.scrollTop = 0;
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yield flushApzRepaints(driveTest);
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// Take over control of the refresh driver and compositor
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var utils = SpecialPowers.DOMWindowUtils;
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utils.advanceTimeAndRefresh(0);
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// Kick off an APZ smooth-scroll to 0,200
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elm.scrollTo(0, 200);
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yield waitForAllPaints(function() { setTimeout(driveTest, 0); });
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// Let's do a couple of frames of the animation, and make sure it's going
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utils.advanceTimeAndRefresh(16);
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utils.advanceTimeAndRefresh(16);
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yield flushApzRepaints(driveTest);
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ok(elm.scrollTop > 0, "APZ animation in progress", "scrollTop is now " + elm.scrollTop);
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ok(elm.scrollTop < 200, "APZ animation not yet completed", "scrollTop is now " + elm.scrollTop);
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var frameReconstructionTriggered = 0;
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// Register the listener that triggers the frame reconstruction
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elm.onscroll = function() {
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// Do the reconstruction
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elm.parentNode.classList.add('contentBefore');
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frameReconstructionTriggered++;
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// schedule a thing to undo the changes above
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setTimeout(function() {
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elm.parentNode.classList.remove('contentBefore');
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}, 0);
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}
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// and do a few more frames of the animation, this should trigger the listener
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// and the frame reconstruction
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utils.advanceTimeAndRefresh(16);
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utils.advanceTimeAndRefresh(16);
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yield flushApzRepaints(driveTest);
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ok(elm.scrollTop < 200, "APZ animation not yet completed", "scrollTop is now " + elm.scrollTop);
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ok(frameReconstructionTriggered > 0, "Frame reconstruction triggered", "reconstruction triggered " + frameReconstructionTriggered + " times");
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// and now run to completion
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for (var i = 0; i < 100; i++) {
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utils.advanceTimeAndRefresh(16);
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}
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utils.restoreNormalRefresh();
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yield waitForAllPaints(function() { setTimeout(driveTest, 0); });
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yield flushApzRepaints(driveTest);
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is(elm.scrollTop, 200, "Element should have scrolled by 200px");
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}
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var gTestContinuation = null;
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function driveTest() {
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if (!gTestContinuation) {
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gTestContinuation = runTest();
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}
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var ret = gTestContinuation.next();
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if (ret.done) {
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SimpleTest.finish();
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}
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}
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SimpleTest.waitForExplicitFinish();
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var apzEnabled = SpecialPowers.getDOMWindowUtils(window).asyncPanZoomEnabled;
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if (!apzEnabled) {
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ok(true, "APZ not enabled, skipping test");
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SimpleTest.finish();
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} else {
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SimpleTest.expectAssertions(0, 1); // this test triggers an assertion, see bug 1247050
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SimpleTest.waitForFocus(driveTest, window);
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}
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</script>
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</body>
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</html>
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