| /* |
| * Copyright (C) 2020 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 "LayoutIntegrationInlineContent.h" |
| #include "LayoutIntegrationRunIteratorModernPath.h" |
| |
| namespace WebCore { |
| |
| namespace LayoutIntegration { |
| |
| class RunIteratorModernPath; |
| |
| class LineIteratorModernPath { |
| public: |
| LineIteratorModernPath(const InlineContent& inlineContent, size_t lineIndex) |
| : m_inlineContent(&inlineContent) |
| , m_lineIndex(lineIndex) |
| { |
| ASSERT(lineIndex <= lines().size()); |
| } |
| LineIteratorModernPath(LineIteratorModernPath&&) = default; |
| LineIteratorModernPath(const LineIteratorModernPath&) = default; |
| LineIteratorModernPath& operator=(const LineIteratorModernPath&) = default; |
| LineIteratorModernPath& operator=(LineIteratorModernPath&&) = default; |
| |
| LayoutUnit top() const { return LayoutUnit::fromFloatRound(line().enclosingContentTop()); } |
| LayoutUnit bottom() const { return LayoutUnit::fromFloatRound(line().enclosingContentBottom()); } |
| LayoutUnit lineBoxTop() const { return LayoutUnit::fromFloatRound(line().lineBoxTop()); } |
| LayoutUnit lineBoxBottom() const { return LayoutUnit::fromFloatRound(line().lineBoxBottom()); } |
| |
| // FIXME: What should these really be? |
| LayoutUnit selectionTop() const { return top(); } |
| LayoutUnit selectionTopForHitTesting() const { return top(); } |
| LayoutUnit selectionBottom() const { return bottom(); } |
| |
| float contentLogicalLeft() const { return line().lineBoxLeft() + line().contentLeftOffset(); } |
| float contentLogicalRight() const { return contentLogicalLeft() + line().contentWidth(); } |
| float y() const { return lineBoxTop(); } |
| float logicalHeight() const { return lineBoxBottom() - lineBoxTop(); } |
| bool isHorizontal() const { return true; } |
| |
| const RenderBlockFlow& containingBlock() const { return m_inlineContent->containingBlock(); } |
| const RootInlineBox* legacyRootInlineBox() const { return nullptr; } |
| |
| void traverseNext() |
| { |
| ASSERT(!atEnd()); |
| |
| ++m_lineIndex; |
| } |
| |
| void traversePrevious() |
| { |
| ASSERT(!atEnd()); |
| |
| if (!m_lineIndex) { |
| setAtEnd(); |
| return; |
| } |
| |
| --m_lineIndex; |
| } |
| |
| bool operator==(const LineIteratorModernPath& other) const { return m_inlineContent == other.m_inlineContent && m_lineIndex == other.m_lineIndex; } |
| |
| bool atEnd() const { return m_lineIndex == lines().size(); } |
| void setAtEnd() { m_lineIndex = lines().size(); } |
| |
| RunIteratorModernPath firstRun() const |
| { |
| if (!line().runCount()) |
| return { *m_inlineContent }; |
| return { *m_inlineContent, line().firstRunIndex() }; |
| } |
| |
| RunIteratorModernPath lastRun() const |
| { |
| auto runCount = line().runCount(); |
| if (!runCount) |
| return { *m_inlineContent }; |
| return { *m_inlineContent, line().firstRunIndex() + runCount - 1 }; |
| } |
| |
| RunIteratorModernPath logicalStartRun() const |
| { |
| return firstRun(); |
| } |
| |
| RunIteratorModernPath logicalEndRun() const |
| { |
| return lastRun(); |
| } |
| |
| |
| private: |
| const InlineContent::Lines& lines() const { return m_inlineContent->lines; } |
| const Line& line() const { return lines()[m_lineIndex]; } |
| |
| RefPtr<const InlineContent> m_inlineContent; |
| size_t m_lineIndex { 0 }; |
| }; |
| |
| } |
| } |
| |
| #endif |
| |