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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /layout/base/tests/chrome/test_prerendered_transforms.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/base/tests/chrome/test_prerendered_transforms.html')
| -rw-r--r-- | layout/base/tests/chrome/test_prerendered_transforms.html | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/layout/base/tests/chrome/test_prerendered_transforms.html b/layout/base/tests/chrome/test_prerendered_transforms.html new file mode 100644 index 0000000000..3151d32413 --- /dev/null +++ b/layout/base/tests/chrome/test_prerendered_transforms.html @@ -0,0 +1,46 @@ +<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Test that active transformed elements coming into view are prerendered so we don't have to redraw constantly</title>
+ <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+ <script src="chrome://mochikit/content/tests/SimpleTest/paint_listener.js"></script>
+ <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+</head>
+<body onload="startTest()">
+<div>
+<div id="t" style="position:absolute; left:0; top:500px; -moz-transform: translatex(-100px); width:200px; height:100px; background:yellow;">
+ <div style="text-align:right">Hello</div>
+ <div style="text-align:left">Kitty</div>
+</div>
+</div>
+<pre id="test">
+<script type="application/javascript">
+SimpleTest.waitForExplicitFinish();
+
+var t = document.getElementById("t");
+var utils = window.windowUtils;
+
+function startTest() {
+ // Do a couple of transform changes to ensure we've triggered activity heuristics
+ waitForAllPaintsFlushed(function () {
+ t.style.MozTransform = "translatex(-75px)";
+ waitForAllPaintsFlushed(function () {
+ t.style.MozTransform = "translatex(-50px)";
+ waitForAllPaintsFlushed(function () {
+ // Clear paint state now and move again.
+ utils.checkAndClearPaintedState(t);
+ // Don't move to 0 since that might trigger some special case that turns off transforms.
+ t.style.MozTransform = "translatex(-1px)";
+ waitForAllPaintsFlushed(function () {
+ var painted = utils.checkAndClearPaintedState(t);
+ is(painted, false, "Transformed element should not have been painted");
+ SimpleTest.finish();
+ });
+ });
+ });
+ });
+}
+</script>
+</pre>
+</body>
+</html>
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