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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=367028
-->
<head>
<title>Test for Bug 367028</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<style>
#scroller {
display: block;
width: 200px;
height: 100px;
overflow: scroll;
background: beige;
border: 1px solid black;
}
#biggerblock {
display: block;
width: 100px;
height: 150px;
line-height: 150px;
white-space: nowrap;
overflow: hidden;
background: khaki;
}
</style>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=367028">Mozilla Bug 367028</a>
<p id="display"></p>
<div id="content" style="display: none"></div>
<a id="scroller" href="#">
block anchor<span id="biggerblock">bigger block</span>
</a>
<script type="application/javascript">
function waitForEvent(aTarget, aEvent) {
return new Promise(aResolve => {
aTarget.addEventListener(aEvent, aResolve, { once: true });
});
}
/** Test for Bug 367028 **/
add_task(async function drag_thumb_in_link() {
let scroller = document.getElementById("scroller");
scroller.ondragstart = function(e) {
e.preventDefault();
ok(false, "dragging on scroller bar should not trigger drag-and-drop operation");
scroller.ondragstart = null;
};
// Click the scroll bar.
let x = scroller.getBoundingClientRect().width - 5;
let y = scroller.getBoundingClientRect().height - 70;
synthesizeMouse(scroller, x, y, { type : "mousedown" }, window);
synthesizeMouse(scroller, x, y, { type : "mousemove" }, window);
let scrollPromise = waitForEvent(scroller, "scroll");
x = scroller.getBoundingClientRect().width + 20;
y = scroller.getBoundingClientRect().height - 30;
synthesizeMouse(scroller, x, y, { type : "mousemove" }, window);
synthesizeMouse(scroller, x, y, { type : "mouseup" }, window);
await scrollPromise;
ok(true, "Dragging scroller bar should scroll");
scroller.ondragstart = null;
});
</script>
</body>
</html>
|
