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test_plugin_scroll_invalidation.html
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test_plugin_scroll_invalidation.html
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<!DOCTYPE HTML>
<html>
<head>
<title>Test for plugin child widgets not being invalidated by scrolling</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body onload="initialize()">
<p id="display">
<iframe id="i" src="plugin_scroll_invalidation.html"
width="50" height="50" scrolling="no"></iframe>
</p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
<script type="application/javascript">
SimpleTest.waitForExplicitFinish();
var scrolling;
var scrolling_plugins = [];
var paint_waiter;
var last_paint_counts;
function initialize() {
scrolling = document.getElementById("i").contentWindow;
scrolling_plugins = scrolling.document.querySelectorAll("embed.scrolling");
paint_waiter = scrolling.document.getElementById("paint-waiter");
scrolling.scrollTo(50, 45);
is(paint_waiter.getPaintCount(), 0, "zero-sized plugin not painted");
waitForPaint(scrollAround);
}
function scrollAround() {
var paints = getPaintCounts();
for (var i = 0; i < paints.length; ++i) {
isnot(paints[i], 0, "embed " + scrolling_plugins[i].id + " is painted");
}
last_paint_counts = paints;
scrolling.scrollBy(-5, 5);
scrolling.scrollBy(5, 5);
scrolling.scrollBy(5, -5);
scrolling.scrollBy(-5, -5);
scrolling.scrollTo(45, 45);
scrolling.scrollBy(10, 0);
scrolling.scrollBy(0, 10);
scrolling.scrollBy(-10, 0);
scrolling.scrollBy(0, -10);
waitForPaint(done);
}
function done() {
var paints = getPaintCounts();
for (var i = 0; i < paints.length; ++i) {
is(paints[i], last_paint_counts[i], "embed " + scrolling_plugins[i].id + " is not painted on scroll");
}
SimpleTest.finish();
}
function waitForPaint(func) {
paint_waiter.last_paint_count = paint_waiter.getPaintCount();
paint_waiter.style.left = scrolling.scrollX + "px";
paint_waiter.style.top = scrolling.scrollY + "px";
paint_waiter.style.width = "1px";
paint_waiter.style.height = "1px";
waitForPaintHelper(func);
}
function waitForPaintHelper(func) {
if (paint_waiter.getPaintCount() != paint_waiter.last_paint_count) {
// hide the paint waiter
paint_waiter.style.width = "0px";
paint_waiter.style.height = "0px";
setTimeout(func, 0);
return;
}
setTimeout(function() { waitForPaintHelper(func); }, 100);
}
function getPaintCounts() {
var result = [];
for (var i = 0; i < scrolling_plugins.length; ++i) {
result[i] = scrolling_plugins[i].getPaintCount();
}
return result;
}
</script>
</body>
</html>