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/*
* Copyright (C) 2014 Igalia S.L.
*
* 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 THE COPYRIGHT HOLDER “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 THE COPYRIGHT HOLDER 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.
*/
#ifndef SelectionSubtreeRoot_h
#define SelectionSubtreeRoot_h
#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()
: selectionStartPos(-1)
, selectionEndPos(-1)
{
}
int selectionStartPos;
int selectionEndPos;
SelectedObjectMap selectedObjects;
SelectedBlockMap selectedBlocks;
};
class SelectionSubtreeData {
public:
SelectionSubtreeData()
: m_selectionStart(nullptr)
, m_selectionStartPos(-1)
, m_selectionEnd(nullptr)
, m_selectionEndPos(-1)
{
}
SelectionSubtreeData(RenderObject* selectionStart, int selectionStartPos, RenderObject* selectionEnd, int selectionEndPos)
: m_selectionStart(selectionStart)
, m_selectionStartPos(selectionStartPos)
, m_selectionEnd(selectionEnd)
, m_selectionEndPos(selectionEndPos)
{
}
RenderObject* selectionStart() const { return m_selectionStart; }
int selectionStartPos() const { return m_selectionStartPos; }
RenderObject* selectionEnd() const { return m_selectionEnd; }
int selectionEndPos() const { return m_selectionEndPos; }
bool selectionClear() const
{
return !m_selectionStart
&& (m_selectionStartPos == -1)
&& !m_selectionEnd
&& (m_selectionEndPos == -1);
}
void selectionStartEndPositions(int& startPos, int& endPos) const
{
startPos = m_selectionStartPos;
endPos = m_selectionEndPos;
}
void setSelectionStart(RenderObject* selectionStart) { m_selectionStart = selectionStart; }
void setSelectionStartPos(int selectionStartPos) { m_selectionStartPos = selectionStartPos; }
void setSelectionEnd(RenderObject* selectionEnd) { m_selectionEnd = selectionEnd; }
void setSelectionEndPos(int selectionEndPos) { m_selectionEndPos = selectionEndPos; }
void clearSelection()
{
m_selectionStart = nullptr;
m_selectionStartPos = -1;
m_selectionEnd = nullptr;
m_selectionEndPos = -1;
}
private:
RenderObject* m_selectionStart;
int m_selectionStartPos;
RenderObject* m_selectionEnd;
int m_selectionEndPos;
};
typedef HashMap<SelectionSubtreeRoot*, SelectionSubtreeData> RenderSubtreesMap;
typedef HashMap<const SelectionSubtreeRoot*, std::unique_ptr<OldSelectionData>> SubtreeOldSelectionDataMap;
SelectionSubtreeRoot();
SelectionSubtreeRoot(RenderObject* selectionStart, int selectionStartPos, RenderObject* selectionEnd, int selectionEndPos);
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;
};
} // namespace WebCore
#endif // SelectionSubtreeRoot_h
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