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Unified Diff: LayoutTests/fast/css/invalidation/full-page-media.html

Issue 664583007: Avoid subtree style recalc for :-webkit-full-page-media. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Rebased Created 6 years, 2 months ago
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Index: LayoutTests/fast/css/invalidation/full-page-media.html
diff --git a/LayoutTests/fast/css/invalidation/full-page-media.html b/LayoutTests/fast/css/invalidation/full-page-media.html
new file mode 100644
index 0000000000000000000000000000000000000000..8e5952b68b840302b7e6139d08c571cbd9c74eeb
--- /dev/null
+++ b/LayoutTests/fast/css/invalidation/full-page-media.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<script src="../../../resources/js-test.js"></script>
+<style>
+.outer #inner:not(:-webkit-full-page-media) {
+ background-color: green
+}
+#outer + div {
+ color: pink
+}
+</style>
+<div id="outer">
+ <div>
+ <div id="inner"></div>
+ </div>
+ <div></div>
+ <div></div>
+</div>
+<div></div>
+<script>
+description("Support style invalidation when selectors contain :-webkit-full-page-media")
+
+var transparent = "rgba(0, 0, 0, 0)";
+var green = "rgb(0, 128, 0)";
+
+shouldBe("getComputedStyle(inner).backgroundColor", "transparent");
+
+inner.offsetTop; // force recalc
+outer.className = "outer";
+
+if (window.internals)
+ shouldBe("internals.updateStyleAndReturnAffectedElementCount()", "2");
+
+shouldBe("getComputedStyle(inner).backgroundColor", "green");
+</script>
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