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LibHTML: LayoutText should always use parent's style properties

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This patch makes StyleProperties heap-allocated and ref-counted so that
a LayoutNode can be without one. The ref-counting also allows anonymous
blocks to share style with their parent block.

LayoutText never needs a StyleProperties, since text always inherits
style from its parent element. This is handled by style_properties().
This commit is contained in:
Andreas Kling 2019-10-04 12:12:39 +02:00
parent 79d8b9ae75
commit 4e35bbffdd
14 changed files with 45 additions and 39 deletions
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11
Libraries/LibHTML/Layout/LayoutNode.h
View file

@ -62,18 +62,23 @@ public:
virtual LayoutNode& inline_wrapper() { return *this; }
const StyleProperties& style_properties() const { return m_style_properties; }
const StyleProperties& style_properties() const
{
if (m_style_properties)
return *m_style_properties;
return parent()->style_properties();
}
void inserted_into(LayoutNode&) {}
void removed_from(LayoutNode&) {}
protected:
explicit LayoutNode(const Node*, StyleProperties&&);
explicit LayoutNode(const Node*, RefPtr<StyleProperties>);
private:
const Node* m_node { nullptr };
StyleProperties m_style_properties;
RefPtr<StyleProperties> m_style_properties;
ComputedStyle m_style;
Rect m_rect;
};