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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=66619
-->
<head>
<title>Test for Bug 66619</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body onload="run()">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=66619">Mozilla Bug 66619</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
/** Test for Bug 66619 **/
SimpleTest.waitForExplicitFinish();
function assert_fully_in_view(element) {
let rect = element.getBoundingClientRect();
ok(rect.top >= 0, `${element.id} top`);
ok(rect.bottom <= window.innerHeight, `${element.id} bottom`);
}
function run() {
is(window.scrollY, 0, "window should initially be at top");
let first = document.getElementById("first");
let second = document.getElementById("second");
let third = document.getElementById("third");
first.focus();
let firstOffset = window.scrollY;
isnot(firstOffset, 0, "we scrolled to first anchor");
ok(firstOffset + window.innerHeight > 4000,
"we scrolled enough to show the anchor");
assert_fully_in_view(first);
window.scrollTo(0, 0);
second.focus();
let secondOffset = window.scrollY;
assert_fully_in_view(second);
window.scrollTo(0, 0);
third.focus();
let thirdOffset = window.scrollY;
assert_fully_in_view(third);
ok(secondOffset > firstOffset, "we scrolled the second line of the anchor into view");
ok(thirdOffset > secondOffset, "we scrolled the second line of the anchor into view");
window.scrollTo(0, 0); // make the results visible
SimpleTest.finish();
}
</script>
</pre>
<div style="height:4000px"></div>
<a id="first" href="http://www.mozilla.org/">first<br>link</a>
<a id="second" href="http://www.mozilla.org/">second link</a>
<a id="third" href="http://www.mozilla.org/">third<br>link</a>
<div style="height:4000px"></div>
</body>
</html>
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