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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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10
Userland/Libraries/LibWeb/Layout/Node.cpp
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@ -80,15 +80,9 @@ bool Node::establishes_stacking_context() const
return computed_values().opacity() < 1.0f;
}
HitTestResult Node::hit_test(const Gfx::IntPoint& position, HitTestType type) const
HitTestResult Node::hit_test(Gfx::IntPoint const&, HitTestType) const
{
HitTestResult result;
for_each_child_in_paint_order([&](auto& child) {
auto child_result = child.hit_test(position, type);
if (child_result.layout_node)
result = child_result;
});
return result;
VERIFY_NOT_REACHED();
}
HTML::BrowsingContext const& Node::browsing_context() const