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LibHTML: Add LayoutNodeWithStyle class, make LayoutText style-less

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Since LayoutText always inherits style, it shouldn't store any style of
its own. This patch adds a LayoutNodeWithStyle class to sit between
LayoutNode and everyone who wants to inherit from LayoutNode except
LayoutText :^)

Since LayoutText can never have children, we also know that the parent
of any LayoutNode is always going to be a LayoutNodeWithStyle.
So this patch makes LayoutNode::parent() return LayoutNodeWithStyle*.
This commit is contained in:
Andreas Kling 2019-10-07 09:50:31 +02:00
parent 15f3e64862
commit 749e3f0f30
9 changed files with 46 additions and 17 deletions
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2
Libraries/LibHTML/Layout/LayoutBlock.h
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@ -5,7 +5,7 @@
class Element;
class LayoutBlock : public LayoutNode {
class LayoutBlock : public LayoutNodeWithStyle {
public:
LayoutBlock(const Node*, NonnullRefPtr<StyleProperties>);
virtual ~LayoutBlock() override;