mozilla-central/layout/generic/test/test_scroll_position_restore_after_stop.html

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Test Info: Warnings

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1312697</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<p id="display"></p>
<script>
SimpleTest.waitForExplicitFinish();
var loadCount = 0;
var childWin = window.open('file_SlowPage.sjs', '_blank');
var targetPos = 0;
// Called by the page in the child window when it's halfway loaded.
function partiallyLoaded() {
if (loadCount == 1) {
// Halfway through the first reload, stop loading.
childWin.stop();
// Force a reflow in the stopped state. This triggers the buggy behaviour.
var newNode = childWin.document.createElement('p');
newNode.innerHTML = "Added text.";
childWin.document.body.insertBefore(newNode, childWin.document.body.childNodes[0]);
childWin.waitForAllPaintsFlushed(function() {
// Since we're only partially loaded, we should not have been able to
// reach the target scroll position.
ok(childWin.scrollY < targetPos, "Expected page to not be fully loaded");
// Now re-load again. Continue reading in fullyLoaded(), the
// 'loadCount == 2' case.
loadCount++;
childWin.location.reload();
});
}
}
// Called by the page in the child window when it's fully loaded.
function fullyLoaded() {
if (loadCount == 0) {
// Scroll to a target position near the end of the page (past the
// half-way point.)
targetPos = childWin.scrollMaxY - 100;
childWin.scrollTo(0, targetPos);
childWin.waitForAllPaintsFlushed(function() {
ok(childWin.scrollY == targetPos, "Expected page to have scrolled");
// Reload the page.
loadCount++;
childWin.location.reload();
// Next, we'll get into partiallyLoaded(). Read on there.
});
} else if (loadCount == 2) {
// After the second reload is complete, check that the initial target
// position was remembered and scrolled to.
childWin.waitForAllPaintsFlushed(function() {
ok(childWin.scrollY == targetPos, "Expected page to have scrolled to target position");
childWin.close();
SimpleTest.finish();
});
}
}
</script>
</body>
</html>