SelectionSubtreeRoot.h [plain text]
#pragma once
#include "RenderObject.h"
#include "RenderSelectionInfo.h"
namespace WebCore {
class Document;
class SelectionSubtreeRoot {
public:
typedef HashMap<RenderObject*, std::unique_ptr<RenderSelectionInfo>> SelectedObjectMap;
typedef HashMap<const RenderBlock*, std::unique_ptr<RenderBlockSelectionInfo>> SelectedBlockMap;
struct OldSelectionData {
OldSelectionData()
{
}
std::optional<unsigned> selectionStartPos;
std::optional<unsigned> selectionEndPos;
SelectedObjectMap selectedObjects;
SelectedBlockMap selectedBlocks;
};
class SelectionSubtreeData {
public:
SelectionSubtreeData() = default;
SelectionSubtreeData(RenderObject* selectionStart, std::optional<unsigned> selectionStartPos, RenderObject* selectionEnd, std::optional<unsigned> selectionEndPos)
: m_selectionStart(selectionStart)
, m_selectionStartPos(selectionStartPos)
, m_selectionEnd(selectionEnd)
, m_selectionEndPos(selectionEndPos)
{
}
RenderObject* selectionStart() const { return m_selectionStart; }
std::optional<unsigned> selectionStartPos() const { return m_selectionStartPos; }
RenderObject* selectionEnd() const { return m_selectionEnd; }
std::optional<unsigned> selectionEndPos() const { return m_selectionEndPos; }
bool selectionClear() const
{
return !m_selectionStart
&& (!m_selectionStartPos)
&& !m_selectionEnd
&& (!m_selectionEndPos);
}
void selectionStartEndPositions(unsigned& startPos, unsigned& endPos) const
{
startPos = m_selectionStartPos.value();
endPos = m_selectionEndPos.value();
}
void setSelectionStart(RenderObject* selectionStart) { m_selectionStart = selectionStart; }
void setSelectionStartPos(std::optional<unsigned> selectionStartPos) { m_selectionStartPos = selectionStartPos;}
void setSelectionEnd(RenderObject* selectionEnd) { m_selectionEnd = selectionEnd; }
void setSelectionEndPos(std::optional<unsigned> selectionEndPos) { m_selectionEndPos = selectionEndPos;}
void clearSelection()
{
m_selectionStart = nullptr;
m_selectionStartPos = std::nullopt;
m_selectionEnd = nullptr;
m_selectionEndPos = std::nullopt;
}
private:
RenderObject* m_selectionStart { nullptr };
std::optional<unsigned> m_selectionStartPos;
RenderObject* m_selectionEnd { nullptr };
std::optional<unsigned> m_selectionEndPos;
};
typedef HashMap<SelectionSubtreeRoot*, SelectionSubtreeData> RenderSubtreesMap;
typedef HashMap<const SelectionSubtreeRoot*, std::unique_ptr<OldSelectionData>> SubtreeOldSelectionDataMap;
SelectionSubtreeRoot();
SelectionSubtreeData& selectionData() { return m_selectionSubtreeData; }
const SelectionSubtreeData& selectionData() const { return m_selectionSubtreeData; }
void setSelectionData(const SelectionSubtreeData& selectionSubtreeData) { m_selectionSubtreeData = selectionSubtreeData; }
void adjustForVisibleSelection(Document&);
private:
SelectionSubtreeData m_selectionSubtreeData;
};
}