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+<?xml version="1.0"?>
+<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
+<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=469613
+-->
+<window title="Mozilla Bug 469613"
+ xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+
+ <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
+ <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"/>
+<body xmlns="http://www.w3.org/1999/xhtml">
+ <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=469613">Mozilla Bug 469613</a>
+
+ <p id="display"></p>
+<div id="content" style="display: none">
+</div>
+</body>
+
+<vbox style="height: 100px; overflow: auto;" id="scrollbox">
+ <hbox style="height: 200px;"/>
+</vbox>
+
+<script class="testbody" type="application/javascript;version=1.7"><![CDATA[
+
+/** Test for Bug 469613 **/
+
+function doTest() {
+ let scrollbox = document.getElementById("scrollbox");
+ scrollbox.scrollTop = 0;
+
+ // Make sure that the "scroll focus" is inside the scrollbox by moving the
+ // mouse in the scrollbox.
+ synthesizeMouse(scrollbox, 6, 6, { type: "mousemove" });
+ synthesizeMouse(scrollbox, 8, 8, { type: "mousemove" });
+
+ // Now scroll 10px down.
+ synthesizeWheel(scrollbox, 10, 10, { deltaY: 10.0, deltaMode: WheelEvent.DOM_DELTA_PIXEL });
+
+ // Send a 0-delta scroll.
+ synthesizeWheel(scrollbox, 10, 10, { deltaY: 0.0, deltaMode: WheelEvent.DOM_DELTA_PIXEL });
+
+ setTimeout(function() {
+ // Check if the 10px were scrolled.
+ todo(false, "Starting a 0-delta scroll shouldn't cancel a pending async scroll is disabled, see bug 752786");
+ //is(scrollbox.scrollTop, 10, "Starting a 0-delta scroll shouldn't cancel a pending async scroll.");
+
+ // Second test
+ scrollbox.scrollTop = 20;
+
+ // Start an async scroll to 30.
+ synthesizeWheel(scrollbox, 10, 10, { deltaY: 10.0, deltaMode: WheelEvent.DOM_DELTA_PIXEL });
+
+ // Start a sync scroll to 30.
+ scrollbox.scrollTop = 30;
+
+ is(scrollbox.scrollTop, 30, "Setting scrollTop should have immediate effect, even if there was a pending async scroll to the same position.");
+
+
+ // Third test
+ scrollbox.scrollTop = 40;
+
+ // Start an async scroll to 50.
+ synthesizeWheel(scrollbox, 10, 10, { deltaY: 10.0, deltaMode: WheelEvent.DOM_DELTA_PIXEL });
+
+ // Cancel the async scroll.
+ scrollbox.scrollTop = 40;
+
+ // Send a 0-delta scroll.
+ synthesizeWheel(scrollbox, 10, 10, { deltaY: 0.0, deltaMode: WheelEvent.DOM_DELTA_PIXEL });
+
+ setTimeout(function() {
+ is(scrollbox.scrollTop, 40, "Canceling an async scroll should reset the point of reference for relative scrolls (mDestinationX/Y).");
+
+ SimpleTest.finish();
+ }, 0);
+ }, 0);
+}
+
+SimpleTest.waitForExplicitFinish();
+addLoadEvent(() => setTimeout(doTest, 0));
+
+]]></script>
+
+</window>