| /* |
| * Copyright (C) 2019 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #if ENABLE(LAYOUT_FORMATTING_CONTEXT) |
| |
| #include "DisplayInlineRect.h" |
| #include "LayoutBox.h" |
| #include "RenderStyle.h" |
| #include "TextFlags.h" |
| |
| namespace WebCore { |
| |
| class CachedImage; |
| |
| namespace Display { |
| |
| struct Run { |
| WTF_MAKE_STRUCT_FAST_ALLOCATED; |
| struct TextContext { |
| WTF_MAKE_STRUCT_FAST_ALLOCATED; |
| public: |
| struct ExpansionContext; |
| TextContext(unsigned position, unsigned length, const String&); |
| |
| unsigned start() const { return m_start; } |
| unsigned end() const { return start() + length(); } |
| unsigned length() const { return m_length; } |
| StringView content() const { return StringView(m_contentString).substring(m_start, m_length); } |
| |
| struct ExpansionContext { |
| ExpansionBehavior behavior; |
| InlineLayoutUnit horizontalExpansion { 0 }; |
| }; |
| void setExpansion(ExpansionContext expansionContext) { m_expansionContext = expansionContext; } |
| Optional<ExpansionContext> expansion() const { return m_expansionContext; } |
| |
| bool needsHyphen() const { return m_needsHyphen; } |
| |
| void expand(unsigned expandedLength); |
| void setNeedsHyphen() { m_needsHyphen = true; } |
| |
| private: |
| unsigned m_start { 0 }; |
| unsigned m_length { 0 }; |
| bool m_needsHyphen { false }; |
| String m_contentString; |
| Optional<ExpansionContext> m_expansionContext; |
| }; |
| |
| Run(size_t lineIndex, const Layout::Box&, const InlineRect& logicalRect, const InlineRect& inkOverflow, Optional<TextContext> = WTF::nullopt); |
| |
| size_t lineIndex() const { return m_lineIndex; } |
| |
| const InlineRect& logicalRect() const { return m_logicalRect; } |
| const InlineRect& inkOverflow() const { return m_inkOverflow; } |
| |
| InlineLayoutPoint logicalTopLeft() const { return m_logicalRect.topLeft(); } |
| InlineLayoutUnit logicalLeft() const { return m_logicalRect.left(); } |
| InlineLayoutUnit logicalRight() const { return m_logicalRect.right(); } |
| InlineLayoutUnit logicalTop() const { return m_logicalRect.top(); } |
| InlineLayoutUnit logicalBottom() const { return m_logicalRect.bottom(); } |
| |
| InlineLayoutUnit logicalWidth() const { return m_logicalRect.width(); } |
| InlineLayoutUnit logicalHeight() const { return m_logicalRect.height(); } |
| |
| void setLogicalWidth(InlineLayoutUnit width) { m_logicalRect.setWidth(width); } |
| void setLogicalTop(InlineLayoutUnit logicalTop) { m_logicalRect.setTop(logicalTop); } |
| void setLogicalLeft(InlineLayoutUnit logicalLeft) { m_logicalRect.setLeft(logicalLeft); } |
| void moveVertically(InlineLayoutUnit delta) { m_logicalRect.moveVertically(delta); } |
| void moveHorizontally(InlineLayoutUnit delta) { m_logicalRect.moveHorizontally(delta); } |
| void expandVertically(InlineLayoutUnit delta) { m_logicalRect.expandVertically(delta); } |
| void expandHorizontally(InlineLayoutUnit delta) { m_logicalRect.expandHorizontally(delta); } |
| |
| void setTextContext(const TextContext&& textContext) { m_textContext.emplace(textContext); } |
| const Optional<TextContext>& textContext() const { return m_textContext; } |
| Optional<TextContext>& textContext() { return m_textContext; } |
| |
| void setImage(CachedImage& image) { m_cachedImage = ℑ } |
| CachedImage* image() const { return m_cachedImage; } |
| |
| bool isLineBreak() const { return layoutBox().isLineBreakBox() || (textContext() && textContext()->content() == "\n" && style().preserveNewline()); } |
| |
| const Layout::Box& layoutBox() const { return *m_layoutBox; } |
| const RenderStyle& style() const { return m_layoutBox->style(); } |
| |
| private: |
| // FIXME: Find out the Display::Run <-> paint style setup. |
| const size_t m_lineIndex; |
| WeakPtr<const Layout::Box> m_layoutBox; |
| CachedImage* m_cachedImage { nullptr }; |
| InlineRect m_logicalRect; |
| InlineRect m_inkOverflow; |
| Optional<TextContext> m_textContext; |
| }; |
| |
| inline Run::Run(size_t lineIndex, const Layout::Box& layoutBox, const InlineRect& logicalRect, const InlineRect& inkOverflow, Optional<TextContext> textContext) |
| : m_lineIndex(lineIndex) |
| , m_layoutBox(makeWeakPtr(layoutBox)) |
| , m_logicalRect(logicalRect) |
| , m_inkOverflow(inkOverflow) |
| , m_textContext(textContext) |
| { |
| } |
| |
| inline Run::TextContext::TextContext(unsigned start, unsigned length, const String& contentString) |
| : m_start(start) |
| , m_length(length) |
| , m_contentString(contentString) |
| { |
| } |
| |
| inline void Run::TextContext::expand(unsigned expandedLength) |
| { |
| m_length = expandedLength; |
| } |
| |
| } |
| } |
| #endif |