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LibWeb: Use the StackingContext tree for hit testing

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This makes it possible to click links that are above other content due
to stacking context order (e.g via CSS z-index.)
This commit is contained in:
Andreas Kling 2020-07-01 19:02:28 +02:00
parent f7a900367f
commit 392b055806
8 changed files with 36 additions and 1 deletions
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2
Libraries/LibWeb/Layout/LayoutBlock.cpp
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@ -725,6 +725,8 @@ HitTestResult LayoutBlock::hit_test(const Gfx::IntPoint& position) const
HitTestResult last_good_candidate;
for (auto& line_box : m_line_boxes) {
for (auto& fragment : line_box.fragments()) {
if (is<LayoutBox>(fragment.layout_node()) && to<LayoutBox>(fragment.layout_node()).stacking_context())
continue;
if (enclosing_int_rect(fragment.absolute_rect()).contains(position)) {
if (fragment.layout_node().is_block())
return to<LayoutBlock>(fragment.layout_node()).hit_test(position);