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Test Info: Warnings
- This test gets skipped with pattern: os == 'android'
- Manifest: layout/generic/test/chrome.toml
<?xml version="1.0"?>
<!--
-->
<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="min-height: 200px;"/>
</vbox>
<script class="testbody" type="application/javascript"><![CDATA[
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>