LayoutIntegrationLineLayout.h [plain text]
#pragma once
#if ENABLE(LAYOUT_FORMATTING_CONTEXT)
#include "LayoutIntegrationBoxTree.h"
#include "LayoutIntegrationLineIterator.h"
#include "LayoutIntegrationRunIterator.h"
#include "LayoutPoint.h"
#include "LayoutState.h"
#include "RenderObjectEnums.h"
#include <wtf/WeakPtr.h>
namespace WebCore {
class GraphicsContext;
class HitTestLocation;
class HitTestRequest;
class HitTestResult;
class RenderBlockFlow;
class RenderBox;
class RenderBoxModelObject;
class RenderInline;
class RenderLineBreak;
struct PaintInfo;
namespace LayoutIntegration {
struct InlineContent;
class LineLayout : public CanMakeWeakPtr<LineLayout> {
WTF_MAKE_FAST_ALLOCATED;
public:
LineLayout(RenderBlockFlow&);
~LineLayout();
static RenderBlockFlow* blockContainer(RenderObject&);
static LineLayout* containing(RenderObject&);
static const LineLayout* containing(const RenderObject&);
static bool isEnabled();
static bool canUseFor(const RenderBlockFlow&);
static bool canUseForAfterStyleChange(const RenderBlockFlow&, StyleDifference);
void updateReplacedDimensions(const RenderBox&);
void updateInlineBlockDimensions(const RenderBlock&);
void updateLineBreakBoxDimensions(const RenderLineBreak&);
void updateInlineBoxDimensions(const RenderInline&);
void updateStyle(const RenderBoxModelObject&);
void layout();
LayoutUnit contentLogicalHeight() const;
size_t lineCount() const;
LayoutUnit firstLineBaseline() const;
LayoutUnit lastLineBaseline() const;
void adjustForPagination();
void collectOverflow();
const InlineContent* inlineContent() const { return m_inlineContent.get(); }
bool isPaginated() const { return !!m_paginatedHeight; }
void paint(PaintInfo&, const LayoutPoint& paintOffset);
bool hitTest(const HitTestRequest&, HitTestResult&, const HitTestLocation&, const LayoutPoint& accumulatedOffset, HitTestAction);
TextRunIterator textRunsFor(const RenderText&) const;
RunIterator runFor(const RenderElement&) const;
LineIterator firstLine() const;
LineIterator lastLine() const;
LayoutRect enclosingBorderBoxRectFor(const RenderInline&) const;
const RenderObject& rendererForLayoutBox(const Layout::Box&) const;
const RenderBlockFlow& flow() const { return m_boxTree.flow(); }
RenderBlockFlow& flow() { return m_boxTree.flow(); }
static void releaseCaches(RenderView&);
#if ENABLE(TREE_DEBUGGING)
void outputLineTree(WTF::TextStream&, size_t depth) const;
#endif
private:
void prepareLayoutState();
void prepareFloatingState();
void constructContent();
InlineContent& ensureInlineContent();
void updateLayoutBoxDimensions(const RenderBox&);
const Layout::ContainerBox& rootLayoutBox() const;
Layout::ContainerBox& rootLayoutBox();
void releaseInlineItemCache();
BoxTree m_boxTree;
Layout::LayoutState m_layoutState;
Layout::InlineFormattingState& m_inlineFormattingState;
RefPtr<InlineContent> m_inlineContent;
Optional<LayoutUnit> m_paginatedHeight;
};
}
}
#endif