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LibWeb: Change StackingContext::hit_test() to accept callback
This change modifies hit_test() to no longer return the first paintable encountered at a specified position. Instead, this function accepts a callback that is invoked for each paintable located at a position, in hit-testing order. This modification will allow us to reuse this call for `Document.elementsFromPoint()` in upcoming changes.
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11 changed files with 120 additions and 104 deletions
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@ -143,7 +143,7 @@ public:
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virtual void apply_clip_overflow_rect(PaintContext&, PaintPhase) const { }
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virtual void clear_clip_overflow_rect(PaintContext&, PaintPhase) const { }
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virtual Optional<HitTestResult> hit_test(CSSPixelPoint, HitTestType) const;
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[[nodiscard]] virtual TraversalDecision hit_test(CSSPixelPoint, HitTestType, Function<TraversalDecision(HitTestResult)> const& callback) const;
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virtual bool wants_mouse_events() const { return false; }
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