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REGRESSION (r263179): CSS checkbox no longer visible in iOS 14 https://bugs.webkit.org/show_bug.cgi?id=216690 <rdar://problem/69156576> Reviewed by Simon Fraser. Source/WebCore: We revert the changes to RenderBox::addVisualEffectOverflow() introduced in r263179 for bug 213260. Instead of that original change, which affected painting instead of hit-testing, we now ensure that RenderBlock::nodeAtPoint() will check the hit-test point is within an element's clipped bounds before considering its children. Whether the element has a self-painting layer should have no bearing here. Tests: fast/box-shadow/box-shadow-with-zero-height.html fast/box-shadow/hit-test-box-shadow-on-zero-height-clipping-container-2.html * rendering/RenderBlock.cpp: (WebCore::RenderBlock::nodeAtPoint): * rendering/RenderBox.cpp: (WebCore::RenderBox::addVisualEffectOverflow): LayoutTests: Add two new tests: one that identifies the particular regression introduced by r263179 where <div style="box-shadow: 0 0 0 10px"> would render nothing at all, and another one that does further hit-testing on clipped child of an element with height: 0 and box-shadow to set ink overflow which was failing even after r263179. * fast/box-shadow/box-shadow-with-zero-height-expected.html: Added. * fast/box-shadow/box-shadow-with-zero-height.html: Added. * fast/box-shadow/hit-test-box-shadow-on-zero-height-clipping-container-2-expected.txt: Added. * fast/box-shadow/hit-test-box-shadow-on-zero-height-clipping-container-2.html: Added. Canonical link: https://commits.webkit.org/231273@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@269450 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2020-11-05 18:36:12 +00:00
<body style="margin: 0"><div style="box-shadow: 0 0 0 10px"></div></body>