f73aa8e2bd
Per the spec, only a BlockContainer" can have line boxes, so let's not clutter up every Layout::Box with line boxes. This also allows us to establish an invariant that BFC and IFC always operate on a Layout::BlockContainer. Note that if BlockContainer has all block-level children, its line boxes are not used for anything. They are only used in the all inline-level children scenario.
63 lines
2 KiB
C++
63 lines
2 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Vector.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/Layout/BlockContainer.h>
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#include <LibWeb/Layout/FormattingContext.h>
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namespace Web::Layout {
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// https://drafts.csswg.org/css-display/#block-formatting-context
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class BlockFormattingContext : public FormattingContext {
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public:
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explicit BlockFormattingContext(BlockContainer&, FormattingContext* parent);
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~BlockFormattingContext();
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virtual void run(Box&, LayoutMode) override;
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bool is_initial() const;
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const Vector<Box*>& left_floating_boxes() const { return m_left_floating_boxes; }
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const Vector<Box*>& right_floating_boxes() const { return m_right_floating_boxes; }
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static float compute_theoretical_height(Box const&);
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void compute_width(Box&);
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// https://drafts.csswg.org/css-display/#block-formatting-context-root
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BlockContainer& root() { return static_cast<BlockContainer&>(context_box()); }
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BlockContainer const& root() const { return static_cast<BlockContainer const&>(context_box()); }
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protected:
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static void compute_height(Box&);
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void compute_position(Box&);
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private:
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virtual bool is_block_formatting_context() const final { return true; }
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void compute_width_for_floating_box(Box&);
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void compute_width_for_block_level_replaced_element_in_normal_flow(ReplacedBox&);
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void layout_initial_containing_block(LayoutMode);
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void layout_block_level_children(BlockContainer&, LayoutMode);
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void layout_inline_children(BlockContainer&, LayoutMode);
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void place_block_level_replaced_element_in_normal_flow(Box& child, BlockContainer const&);
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void place_block_level_non_replaced_element_in_normal_flow(Box& child, BlockContainer const&);
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void layout_floating_child(Box& child, BlockContainer const& containing_block);
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void apply_transformations_to_children(Box&);
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Vector<Box*> m_left_floating_boxes;
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Vector<Box*> m_right_floating_boxes;
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};
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}
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