ladybird/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.h
Andreas Kling d58f60c953 LibWeb: Unify code for assigning vertical box model metrics in BFC
We were doing the exact same thing for both replaced and non-replaced
elements, so let's share the code. :^)
2022-01-24 02:09:17 +01:00

76 lines
2.2 KiB
C++

/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Vector.h>
#include <LibWeb/Forward.h>
#include <LibWeb/Layout/BlockContainer.h>
#include <LibWeb/Layout/FormattingContext.h>
namespace Web::Layout {
// https://www.w3.org/TR/css-display/#block-formatting-context
class BlockFormattingContext : public FormattingContext {
public:
explicit BlockFormattingContext(BlockContainer&, FormattingContext* parent);
~BlockFormattingContext();
virtual void run(Box&, LayoutMode) override;
bool is_initial() const;
auto const& left_side_floats() const { return m_left_floats; }
auto const& right_side_floats() const { return m_right_floats; }
static float compute_theoretical_height(Box const&);
void compute_width(Box&);
// https://www.w3.org/TR/css-display/#block-formatting-context-root
BlockContainer& root() { return static_cast<BlockContainer&>(context_box()); }
BlockContainer const& root() const { return static_cast<BlockContainer const&>(context_box()); }
protected:
static void compute_height(Box&);
void compute_position(Box&);
private:
virtual bool is_block_formatting_context() const final { return true; }
void compute_width_for_floating_box(Box&);
void compute_width_for_block_level_replaced_element_in_normal_flow(ReplacedBox&);
void layout_initial_containing_block(LayoutMode);
void layout_block_level_children(BlockContainer&, LayoutMode);
void layout_inline_children(BlockContainer&, LayoutMode);
void compute_vertical_box_model_metrics(Box& child_box, BlockContainer const& containing_block);
void place_block_level_replaced_element_in_normal_flow(Box& child, BlockContainer const&);
void place_block_level_non_replaced_element_in_normal_flow(Box& float_side, BlockContainer const&);
void layout_floating_child(Box& child, BlockContainer const& containing_block);
void apply_transformations_to_children(Box&);
enum class FloatSide {
Left,
Right,
};
struct FloatSideData {
Vector<Box&> boxes;
float y_offset { 0 };
};
FloatSideData m_left_floats;
FloatSideData m_right_floats;
};
}