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<!DOCTYPE html>
<script src="../../../resources/js-test.js"></script>
<style>
body {
height: 1800px;
}
</style>
<body>
<script>
window.jsTestIsAsync = true;
description("This test scrolls by clicking in the scrollbar track.");
// Compute ScrollableArea::pageStep.
var pageStep = innerHeight * 0.875;
if (navigator.userAgent.indexOf("Mac OS X") >= 0)
pageStep = Math.max(pageStep, innerHeight - 40);
onload = function() {
if (!window.eventSender || !window.internals) {
finishJSTest();
return;
}
// Turn on smooth scrolling.
internals.settings.setScrollAnimatorEnabled(true);
// Click in the vertical scrollbar track, below the thumb.
eventSender.mouseMoveTo(790, 280);
eventSender.mouseDown();
eventSender.mouseUp();
// A second click should have no effect since we will be under the thumb
// by the time the animation completes.
eventSender.mouseDown();
eventSender.mouseUp();
shouldBecomeEqual("scrollY", "pageStep", function() {
requestAnimationFrame(function() {
// Make sure we stopped here.
shouldBe("scrollY", "pageStep");
finishJSTest();
});
});
};
</script>
</body>
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