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LibWeb: Give FormattingState a reference to its root state
FormattingStates can have parents, in case we're performing nested layouts to determine something's intrinsic size. In those cases, it will soon be useful to find the outermost (root) state.
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1 changed files with 15 additions and 1 deletions
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@ -15,12 +15,25 @@
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namespace Web::Layout {
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struct FormattingState {
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FormattingState() { }
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FormattingState()
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: m_root(*this)
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{
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}
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explicit FormattingState(FormattingState const* parent)
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: m_parent(parent)
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, m_root(find_root())
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{
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}
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FormattingState const& find_root() const
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{
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FormattingState const* root = this;
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for (auto* state = m_parent; state; state = state->m_parent)
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root = state;
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return *root;
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}
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struct NodeState {
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float content_width { 0 };
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float content_height { 0 };
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@ -92,6 +105,7 @@ struct FormattingState {
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HashMap<NodeWithStyleAndBoxModelMetrics const*, IntrinsicSizes> mutable intrinsic_sizes;
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FormattingState const* m_parent { nullptr };
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FormattingState const& m_root;
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};
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Gfx::FloatRect absolute_content_rect(Box const&, FormattingState const&);
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