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--HG-- rename : layout/base/tests/chrome/paint_listener.js => testing/mochitest/tests/SimpleTest/paint_listener.js
48 lines
1.9 KiB
HTML
48 lines
1.9 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Test that active transformed elements coming into view are prerendered so we don't have to redraw constantly</title>
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<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<script type="text/javascript" src="chrome://mochikit/content/tests/SimpleTest/paint_listener.js"></script>
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<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
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</head>
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<body onload="startTest()">
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<div>
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<div id="t" style="position:absolute; left:0; top:500px; -moz-transform: translatex(-100px); width:200px; height:100px; background:yellow;">
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<div style="text-align:right">Hello</div>
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<div style="text-align:left">Kitty</div>
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</div>
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</div>
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<pre id="test">
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<script type="application/javascript">
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SimpleTest.waitForExplicitFinish();
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var t = document.getElementById("t");
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var utils = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor).
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getInterface(Components.interfaces.nsIDOMWindowUtils);
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function startTest() {
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// Do a couple of transform changes to ensure we've triggered activity heuristics
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waitForAllPaintsFlushed(function () {
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t.style.MozTransform = "translatex(-75px)";
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waitForAllPaintsFlushed(function () {
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t.style.MozTransform = "translatex(-50px)";
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waitForAllPaintsFlushed(function () {
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// Clear paint state now and move again.
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utils.checkAndClearPaintedState(t);
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// Don't move to 0 since that might trigger some special case that turns off transforms.
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t.style.MozTransform = "translatex(-1px)";
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waitForAllPaintsFlushed(function () {
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var painted = utils.checkAndClearPaintedState(t);
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is(painted, false, "Transformed element should not have been painted");
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SimpleTest.finish();
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});
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});
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});
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});
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}
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</script>
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</pre>
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</body>
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</html>
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