third_party/WebKit/Source/core/layout/LayoutBox.cpp - Issue 2047283002: Avoid touching z-index in StyleAdjuster by using an isStackingContext flag instead

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Unified Diff: third_party/WebKit/Source/core/layout/LayoutBox.cpp

Issue 2047283002: Avoid touching z-index in StyleAdjuster by using an isStackingContext flag instead (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Animation expectation Created 4 years, 6 months ago

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« third_party/WebKit/Source/core/css/resolver/StyleAdjuster.cpp ('K') | « third_party/WebKit/Source/core/dom/Element.cpp ('k') | third_party/WebKit/Source/core/layout/LayoutBoxModelObject.cpp » ('j') | third_party/WebKit/Source/core/style/ComputedStyle.cpp » ('J')
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Index: third_party/WebKit/Source/core/layout/LayoutBox.cpp

diff --git a/third_party/WebKit/Source/core/layout/LayoutBox.cpp b/third_party/WebKit/Source/core/layout/LayoutBox.cpp

index f760f4c05c473670efff8a3d7e8f2dba5f5de787..206441579efdc8ea113ffa3917ac45b1d3be5f96 100644

--- a/third_party/WebKit/Source/core/layout/LayoutBox.cpp

+++ b/third_party/WebKit/Source/core/layout/LayoutBox.cpp

@@ -108,7 +108,7 @@ PaintLayerType LayoutBox::layerTypeRequired() const

// position:static elements that are not flex-items get their z-index coerced to auto.

if (isPositioned() || createsGroup() || hasClipPath() || hasTransformRelatedProperty()

|| style()->hasCompositorProxy() || hasHiddenBackface() || hasReflection() || style()->specifiesColumns()

- || !style()->hasAutoZIndex() || style()->shouldCompositeForCurrentAnimations())

+ || style()->isStackingContext() || style()->shouldCompositeForCurrentAnimations())

return NormalPaintLayer;

if (hasOverflowClip())

@@ -1388,7 +1388,7 @@ static bool isCandidateForOpaquenessTest(const LayoutBox& childBox)

if (childLayer->compositingState() != NotComposited)

return false;

// FIXME: Deal with z-index.

- if (!childStyle.hasAutoZIndex())

+ if (childStyle.isStackingContext())

return false;

if (childLayer->hasTransformRelatedProperty() || childLayer->isTransparent() || childLayer->hasFilterInducingProperty())

return false;