1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/events/test/test_bug607464.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,101 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<!--
1.7 +https://bugzilla.mozilla.org/show_bug.cgi?id=607464
1.8 +-->
1.9 +<head>
1.10 + <title>Test for Bug 607464</title>
1.11 + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
1.12 + <script type="text/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
1.13 + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
1.14 +</head>
1.15 +<body>
1.16 +<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=607464">Mozilla Bug 607464</a>
1.17 +<p id="display"></p>
1.18 +<div id="content" style="display: none">
1.19 +
1.20 +</div>
1.21 +<pre id="test">
1.22 +<script type="application/javascript;version=1.7">
1.23 +
1.24 +/**
1.25 + * Test for Bug 607464:
1.26 + * Pixel scrolling shouldn't scroll smoothly, even if general.smoothScroll is on.
1.27 + **/
1.28 +
1.29 +function scrollDown15PxWithPixelScrolling(scrollbox) {
1.30 + var win = scrollbox.ownerDocument.defaultView;
1.31 + let event = {
1.32 + deltaMode: WheelEvent.DOM_DELTA_PIXEL,
1.33 + deltaY: 3.0,
1.34 + lineOrPageDeltaY: 1
1.35 + };
1.36 + // A pixel scroll with lineOrPageDeltaY.
1.37 + synthesizeWheel(scrollbox, 10, 10, event, win);
1.38 + // then 4 pixel scrolls without lineOrPageDeltaY.
1.39 + event.lineOrPageDeltaY = 0;
1.40 + for (let i = 0; i < 4; ++i) {
1.41 + synthesizeWheel(scrollbox, 10, 10, event, win);
1.42 + }
1.43 +
1.44 + // Note: the line scroll shouldn't have any effect because it has
1.45 + // hasPixels = true set on it. We send it to emulate normal
1.46 + // behavior.
1.47 +}
1.48 +
1.49 +function runTest() {
1.50 + var win = open('data:text/html,<!DOCTYPE html>\n' +
1.51 + '<div id="scrollbox" style="height: 100px; overflow: auto;">' +
1.52 + ' <div style="height: 1000px;"></div>' +
1.53 + '</div>', '_blank', 'width=300,height=300');
1.54 + SimpleTest.waitForFocus(function () {
1.55 + var scrollbox = win.document.getElementById("scrollbox");
1.56 + let scrollTopBefore = scrollbox.scrollTop;
1.57 +
1.58 + scrollDown15PxWithPixelScrolling(scrollbox);
1.59 +
1.60 + // wait for the next refresh driver run
1.61 + window.mozRequestAnimationFrame(function() {
1.62 + // actually, wait for the next one before checking results, since
1.63 + // scrolling might not be flushed until after this code has run
1.64 + window.mozRequestAnimationFrame(function() {
1.65 + is(scrollbox.scrollTop, scrollTopBefore + 15,
1.66 + "Pixel scrolling should have finished after one refresh driver iteration. " +
1.67 + "We shouldn't be scrolling smoothly, even though the pref is set.");
1.68 + win.close();
1.69 + clearPrefs();
1.70 + SimpleTest.finish();
1.71 + });
1.72 + });
1.73 + }, win);
1.74 +}
1.75 +
1.76 +function initPrefs()
1.77 +{
1.78 + // Disables the app level scroll acceleration
1.79 + SpecialPowers.setIntPref("mousewheel.acceleration.start", -1);
1.80 + SpecialPowers.setBoolPref("mousewheel.system_scroll_override_on_root_content.enabled", false);
1.81 +
1.82 + // Enables smooth scrolling
1.83 + SpecialPowers.setBoolPref("general.smoothScroll", true);
1.84 +}
1.85 +
1.86 +function clearPrefs()
1.87 +{
1.88 + SpecialPowers.clearUserPref("mousewheel.acceleration.start");
1.89 + SpecialPowers.clearUserPref("mousewheel.system_scroll_override_on_root_content.enabled");
1.90 + SpecialPowers.clearUserPref("general.smoothScroll");
1.91 +}
1.92 +
1.93 +window.onload = function () {
1.94 + initPrefs();
1.95 + SimpleTest.executeSoon(runTest);
1.96 +}
1.97 +
1.98 +SimpleTest.waitForExplicitFinish();
1.99 +
1.100 +</script>
1.101 +</pre>
1.102 +
1.103 +</body>
1.104 +</html>
