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https://github.com/RGBCube/serenity
synced 2025-05-18 08:35:07 +00:00
615a4d4f71
Boxes can now be floated left or right, which makes text within the same block formatting context flow around them. We were creating way too many block formatting contexts. As it turns out, we don't need one for every new block, but rather there's a set of rules that determines whether a given block creates a new block formatting context. Each BFC keeps track of the floating boxes within it, and IFC's can then query it to find the available space for line boxes. There's a huge hack in here where we assume all lines are the exact line-height. Making this work with vertically non-uniform lines will require some architectural changes.
69 lines
2.8 KiB
C++
69 lines
2.8 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <LibWeb/DOM/Text.h>
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#include <LibWeb/Layout/Node.h>
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namespace Web::Layout {
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class LineBoxFragment;
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class TextNode : public Node {
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public:
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TextNode(DOM::Document&, DOM::Text&);
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virtual ~TextNode() override;
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const DOM::Text& dom_node() const { return static_cast<const DOM::Text&>(*Node::dom_node()); }
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const String& text_for_style(const CSS::StyleProperties&) const;
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const String& text_for_rendering() const { return m_text_for_rendering; }
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virtual const char* class_name() const override { return "TextNode"; }
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virtual bool is_text() const final { return true; }
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virtual void paint_fragment(PaintContext&, const LineBoxFragment&, PaintPhase) const override;
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virtual void split_into_lines(InlineFormattingContext&, LayoutMode) override;
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const CSS::StyleProperties& specified_style() const { return parent()->specified_style(); }
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private:
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void split_into_lines_by_rules(InlineFormattingContext&, LayoutMode, bool do_collapse, bool do_wrap_lines, bool do_wrap_breaks);
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void paint_cursor_if_needed(PaintContext&, const LineBoxFragment&) const;
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template<typename Callback>
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void for_each_chunk(Callback, LayoutMode, bool do_wrap_lines, bool do_wrap_breaks) const;
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String m_text_for_rendering;
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};
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}
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AK_BEGIN_TYPE_TRAITS(Web::Layout::TextNode)
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static bool is_type(const Web::Layout::Node& layout_node) { return layout_node.is_text(); }
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AK_END_TYPE_TRAITS()
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