122 lines
4.6 KiB
C++
122 lines
4.6 KiB
C++
/*
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* Copyright (C) 2019 Apple Inc. 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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(LAYOUT_FORMATTING_CONTEXT)
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#include "InlineRect.h"
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#include "LayoutBox.h"
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#include "RenderStyle.h"
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#include "TextFlags.h"
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namespace WebCore {
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class CachedImage;
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namespace LayoutIntegration {
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struct Run {
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WTF_MAKE_STRUCT_FAST_ALLOCATED;
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struct TextContent {
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WTF_MAKE_STRUCT_FAST_ALLOCATED;
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public:
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TextContent(size_t position, size_t length, const String&, String adjustedContentToRender, bool hasHyphen);
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size_t start() const { return m_start; }
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size_t end() const { return start() + length(); }
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size_t length() const { return m_length; }
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StringView originalContent() const { return StringView(m_originalContent).substring(m_start, m_length); }
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StringView renderedContent() const { return m_adjustedContentToRender.isNull() ? originalContent() : m_adjustedContentToRender; }
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bool hasHyphen() const { return m_hasHyphen; }
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private:
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size_t m_start { 0 };
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size_t m_length { 0 };
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bool m_hasHyphen { false };
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String m_originalContent;
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String m_adjustedContentToRender;
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};
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struct Expansion;
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Run(size_t lineIndex, const Layout::Box&, const FloatRect&, const FloatRect& inkOverflow, Expansion, std::optional<TextContent> = std::nullopt);
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const FloatRect& rect() const { return m_rect; }
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const FloatRect& inkOverflow() const { return m_inkOverflow; }
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std::optional<TextContent>& textContent() { return m_textContent; }
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const std::optional<TextContent>& textContent() const { return m_textContent; }
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// FIXME: This information should be preserved at Run construction time.
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bool isLineBreak() const { return layoutBox().isLineBreakBox() || (textContent() && textContent()->originalContent() == "\n" && style().preserveNewline()); }
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struct Expansion {
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ExpansionBehavior behavior { DefaultExpansion };
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InlineLayoutUnit horizontalExpansion { 0 };
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};
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Expansion expansion() const { return m_expansion; }
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CachedImage* image() const { return m_cachedImage; }
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bool hasUnderlyingLayout() const { return !!m_layoutBox; }
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const Layout::Box& layoutBox() const { return *m_layoutBox; }
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const RenderStyle& style() const { return m_layoutBox->style(); }
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size_t lineIndex() const { return m_lineIndex; }
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private:
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// FIXME: Find out the Display::Run <-> paint style setup.
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const size_t m_lineIndex;
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WeakPtr<const Layout::Box> m_layoutBox;
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CachedImage* m_cachedImage { nullptr };
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FloatRect m_rect;
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FloatRect m_inkOverflow;
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Expansion m_expansion;
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std::optional<TextContent> m_textContent;
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};
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inline Run::Run(size_t lineIndex, const Layout::Box& layoutBox, const FloatRect& rect, const FloatRect& inkOverflow, Expansion expansion, std::optional<TextContent> textContent)
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: m_lineIndex(lineIndex)
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, m_layoutBox(makeWeakPtr(layoutBox))
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, m_rect(rect)
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, m_inkOverflow(inkOverflow)
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, m_expansion(expansion)
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, m_textContent(textContent)
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{
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}
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inline Run::TextContent::TextContent(size_t start, size_t length, const String& originalContent, String adjustedContentToRender, bool hasHyphen)
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: m_start(start)
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, m_length(length)
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, m_hasHyphen(hasHyphen)
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, m_originalContent(originalContent)
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, m_adjustedContentToRender(adjustedContentToRender)
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{
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}
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}
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}
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#endif
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