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d98cea80e2
Store the static-position insertion point produced by an inline formatting context and let block layout consume it for originally-inline absolute boxes that follow an anonymous inline wrapper. This removes the block formatting context's fragment-walking reconstruction of the same position. Keep the calculation in IFC aware of forced breaks, aligned inline content, trailing inline margins, wrapped lines, RTL inline content, and vertical writing modes. Keep regression coverage for the static-position cases covered while building this model.
71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.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/Layout/LineBoxFragment.h>
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namespace Web::Layout {
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class LineBox {
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public:
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LineBox(CSS::Direction direction, CSS::WritingMode writing_mode)
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: m_direction(direction)
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, m_writing_mode(writing_mode)
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{
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}
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CSSPixels width() const;
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CSSPixels height() const;
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CSSPixels bottom() const;
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CSSPixels inline_length() const { return m_inline_length; }
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CSSPixels block_length() const { return m_block_length; }
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CSSPixels baseline() const { return m_baseline; }
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void add_fragment(Node const& layout_node, size_t start, size_t length, CSSPixels leading_size, CSSPixels trailing_size, CSSPixels leading_margin, CSSPixels trailing_margin, CSSPixels content_width, CSSPixels content_height, CSSPixels border_box_top, CSSPixels border_box_bottom, RefPtr<Gfx::GlyphRun> glyph_run = {});
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Vector<LineBoxFragment> const& fragments() const { return m_fragments; }
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Vector<LineBoxFragment>& fragments() { return m_fragments; }
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CSSPixels get_trailing_whitespace_width() const;
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void trim_trailing_whitespace();
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bool is_empty_or_ends_in_whitespace() const;
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bool is_empty() const { return m_fragments.is_empty() && !m_has_break; }
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bool has_forced_break() const { return m_has_forced_break; }
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AvailableSize original_available_width() const { return m_original_available_width; }
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private:
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friend class BlockContainer;
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friend class InlineFormattingContext;
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friend class LineBuilder;
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enum class RemoveTrailingWhitespace : u8 {
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Yes,
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No,
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};
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CSSPixels calculate_or_trim_trailing_whitespace(RemoveTrailingWhitespace);
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Vector<LineBoxFragment> m_fragments;
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CSSPixels m_inline_length { 0 };
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CSSPixels m_block_length { 0 };
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CSSPixels m_bottom { 0 };
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CSSPixels m_baseline { 0 };
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CSS::Direction m_direction { CSS::Direction::Ltr };
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CSS::WritingMode m_writing_mode { CSS::WritingMode::HorizontalTb };
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// The amount of available width that was originally available when creating this line box. Used for text justification.
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AvailableSize m_original_available_width { AvailableSize::make_indefinite() };
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bool m_has_break { false };
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bool m_has_forced_break { false };
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};
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}
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