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LibWeb: Make inline paintables own their fragments

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The paintable tree structure more closely matches the painting order
when fragments are owned by corresponding inline paintables. This
change does not affect the layout tree, as it is more convenient for
layout purposes to have all fragments owned by a block container in
one place.

Additionally, this improves performance significantly on pages with
many fragments, as we no longer have to walk the ancestor chain up
to the closest block container to determine if a fragment belongs
to an inline paintable.
This commit is contained in:
Aliaksandr Kalenik 2024-01-13 13:11:31 +01:00 • committed by Alexander Kalenik
parent 5ed936289a
commit 2960bf4ec8
34 changed files with 310 additions and 258 deletions
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6
Userland/Libraries/LibWeb/Painting/InlinePaintable.h
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@ -8,6 +8,7 @@
#include <LibWeb/Layout/InlineNode.h>
#include <LibWeb/Painting/PaintableBox.h>
#include <LibWeb/Painting/PaintableFragment.h>
namespace Web::Painting {
@ -23,10 +24,12 @@ public:
auto const& box_model() const { return layout_node().box_model(); }
CSSPixelRect bounding_rect() const;
Vector<PaintableFragment> const& fragments() const { return m_fragments; }
Vector<PaintableFragment>& fragments() { return m_fragments; }
virtual bool is_inline_paintable() const override { return true; }
void mark_contained_fragments();
virtual Optional<HitTestResult> hit_test(CSSPixelPoint, HitTestType) const override;
void set_box_shadow_data(Vector<ShadowData>&& box_shadow_data) { m_box_shadow_data = move(box_shadow_data); }
Vector<ShadowData> const& box_shadow_data() const { return m_box_shadow_data; }
@ -38,6 +41,7 @@ private:
void for_each_fragment(Callback) const;
Vector<ShadowData> m_box_shadow_data;
Vector<PaintableFragment> m_fragments;
};
}