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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
| commit | 9e3c08db40b8916968b9f30096c7be3f00ce9647 (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /layout/style/test/test_change_hint_optimizations.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-upstream.tar.xz thunderbird-upstream.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/style/test/test_change_hint_optimizations.html')
| -rw-r--r-- | layout/style/test/test_change_hint_optimizations.html | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/layout/style/test/test_change_hint_optimizations.html b/layout/style/test/test_change_hint_optimizations.html new file mode 100644 index 0000000000..82e149154c --- /dev/null +++ b/layout/style/test/test_change_hint_optimizations.html @@ -0,0 +1,57 @@ +<!DOCTYPE HTML> +<html> +<head> + <meta charset="utf-8"> + <title>Test for style change hint optimizations</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> + <script type="application/javascript"> + + SimpleTest.waitForExplicitFinish(); + + function runTests() { + + /** Test for Bug 1251075 **/ + function test_bug1251075_div(id) { + var utils = SpecialPowers.DOMWindowUtils; + + var div = document.getElementById(id); + div.style.display = ""; + + var description = div.style.cssText; + + div.firstElementChild.offsetTop; + var constructedBefore = utils.framesConstructed; + + div.style.transform = "translateX(10px)"; + div.firstElementChild.offsetTop; + is(utils.framesConstructed, constructedBefore, + "adding a transform style to an element with " + description + + " should not cause frame reconstruction even when the element " + + "has absolutely positioned descendants"); + + div.style.display = "none"; + } + + test_bug1251075_div("bug1251075_a"); + test_bug1251075_div("bug1251075_b"); + + + SimpleTest.finish(); + } + + </script> +</head> +<body onload="runTests()"> +<div id="bug1251075_a" style="will-change: transform; display:none"> + <div style="position: absolute; top: 0; left: 0;"></div> + <div style="position: fixed; top: 0; left: 0;"></div> +</div> +<div id="bug1251075_b" style="filter: blur(3px); display:none"> + <div style="position: absolute; top: 0; left: 0;"></div> + <div style="position: fixed; top: 0; left: 0;"></div> +</div> +<pre id="test"> +</pre> +</body> +</html> |