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| author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
|---|---|---|
| committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
| commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
| tree | 10027f336435511475e392454359edea8e25895d /layout/style/test/test_change_hint_optimizations.html | |
| parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
| download | UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip | |
Add m-esr52 at 52.6.0
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 000000000..7de8d2431 --- /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 type="application/javascript" 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> |