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LibWeb: Handle many more cases with intrinsic/auto sizing in flex layout
The flexbox specification barely even handwaves about automatically sized items, but there's actually a lot of work to do in order for them to get the correct size. This patch is messy, but does make significant progress on supporting flex items with indefinite width and/or height. There's a fair amount of nested layout going on here, but do note that we'll be hitting the intrinsic sizes cache whenever possible.
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2 changed files with 124 additions and 86 deletions
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@ -86,16 +86,16 @@ private:
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void generate_anonymous_flex_items();
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void determine_available_main_and_cross_space(bool& main_size_is_infinite, bool& main_is_constrained, bool& cross_is_constrained, float& main_min_size, float& main_max_size, float& cross_min_size, float& cross_max_size);
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void determine_available_main_and_cross_space(bool& main_is_constrained, bool& cross_is_constrained, float& main_min_size, float& main_max_size, float& cross_min_size, float& cross_max_size);
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float layout_for_maximum_main_size(Box const&);
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float calculate_indefinite_main_size(FlexItem const&);
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void determine_flex_base_size_and_hypothetical_main_size(FlexItem&);
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void determine_main_size_of_flex_container(bool main_is_constrained, bool main_size_is_infinite, float& main_available_size, float main_min_size, float main_max_size);
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void determine_main_size_of_flex_container(bool main_is_constrained, float main_min_size, float main_max_size);
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void collect_flex_items_into_flex_lines(float main_available_size);
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void collect_flex_items_into_flex_lines();
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void resolve_flexible_lengths(float main_available_size);
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void resolve_flexible_lengths();
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void determine_hypothetical_cross_size_of_item(FlexItem&);
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@ -103,7 +103,7 @@ private:
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void determine_used_cross_size_of_each_flex_item();
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void distribute_any_remaining_free_space(float main_available_size);
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void distribute_any_remaining_free_space();
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void align_all_flex_items_along_the_cross_axis();
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@ -123,8 +123,8 @@ private:
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CSS::FlexDirection m_flex_direction {};
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struct AvailableSpace {
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float main { 0 };
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float cross { 0 };
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Optional<float> main;
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Optional<float> cross;
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};
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Optional<AvailableSpace> m_available_space;
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};
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