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LibWeb: Implement hit testing a bit closer to spec

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We now perform hit testing in reverse paint order as described in CSS2's
section about the z-index property.
This commit is contained in:
Andreas Kling 2022-03-04 15:02:16 +01:00
parent 0401d7da36
commit 15ed0ebdc6
4 changed files with 74 additions and 26 deletions
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2
Userland/Libraries/LibWeb/Layout/Box.cpp
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@ -178,7 +178,7 @@ HitTestResult Box::hit_test(const Gfx::IntPoint& position, HitTestType type) con
// FIXME: It would be nice if we could confidently skip over hit testing
// parts of the layout tree, but currently we can't just check
// m_rect.contains() since inline text rects can't be trusted..
HitTestResult result { absolute_rect().contains(position.x(), position.y()) ? this : nullptr };
HitTestResult result { absolute_border_box_rect().contains(position.x(), position.y()) ? this : nullptr };
for_each_child_in_paint_order([&](auto& child) {
auto child_result = child.hit_test(position, type);
if (child_result.layout_node)