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LibWeb: Keep track of the parent of each formatting context

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This will allow us to find the containing block formatting context
when needed later on.
This commit is contained in:
Andreas Kling 2020-11-25 20:08:52 +01:00
parent 2f491e7769
commit b1e75437c9
9 changed files with 25 additions and 19 deletions
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8
Libraries/LibWeb/Layout/FormattingContext.h
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@ -37,11 +37,14 @@ public:
Box& context_box() { return m_context_box; }
const Box& context_box() const { return m_context_box; }
FormattingContext* parent() { return m_parent; }
const FormattingContext* parent() const { return m_parent; }
protected:
FormattingContext(Box&);
FormattingContext(Box&, FormattingContext* parent = nullptr);
virtual ~FormattingContext();
static void layout_inside(Box&, LayoutMode);
void layout_inside(Box&, LayoutMode);
struct ShrinkToFitResult {
float preferred_width { 0 };
@ -50,6 +53,7 @@ protected:
ShrinkToFitResult calculate_shrink_to_fit_widths(Box&);
FormattingContext* m_parent { nullptr };
Box& m_context_box;
};