SelectionController.h [plain text]
#ifndef SelectionController_h
#define SelectionController_h
#include "IntRect.h"
#include "Selection.h"
#include "Range.h"
#include <wtf/Noncopyable.h>
namespace WebCore {
class Frame;
class GraphicsContext;
class RenderObject;
class VisiblePosition;
class SelectionController : Noncopyable {
public:
enum EAlteration { MOVE, EXTEND };
enum EDirection { FORWARD, BACKWARD, RIGHT, LEFT };
SelectionController(Frame* = 0, bool isDragCaretController = false);
Element* rootEditableElement() const { return m_sel.rootEditableElement(); }
bool isContentEditable() const { return m_sel.isContentEditable(); }
bool isContentRichlyEditable() const { return m_sel.isContentRichlyEditable(); }
void moveTo(const Range*, EAffinity, bool userTriggered = false);
void moveTo(const VisiblePosition&, bool userTriggered = false);
void moveTo(const VisiblePosition&, const VisiblePosition&, bool userTriggered = false);
void moveTo(const Position&, EAffinity, bool userTriggered = false);
void moveTo(const Position&, const Position&, EAffinity, bool userTriggered = false);
const Selection& selection() const { return m_sel; }
void setSelection(const Selection&, bool closeTyping = true, bool clearTypingStyle = true, bool userTriggered = false);
bool setSelectedRange(Range*, EAffinity, bool closeTyping);
void selectAll();
void clear();
void selectFrameElementInParentIfFullySelected();
bool contains(const IntPoint&);
Selection::EState state() const { return m_sel.state(); }
EAffinity affinity() const { return m_sel.affinity(); }
bool modify(EAlteration, EDirection, TextGranularity, bool userTriggered = false);
bool modify(EAlteration, int verticalDistance, bool userTriggered = false);
bool expandUsingGranularity(TextGranularity);
void setBase(const VisiblePosition&, bool userTriggered = false);
void setBase(const Position&, EAffinity, bool userTriggered = false);
void setExtent(const VisiblePosition&, bool userTriggered = false);
void setExtent(const Position&, EAffinity, bool userTriggered = false);
Position base() const { return m_sel.base(); }
Position extent() const { return m_sel.extent(); }
Position start() const { return m_sel.start(); }
Position end() const { return m_sel.end(); }
IntRect caretRect() const;
FloatQuad absoluteCaretQuad() const; void setNeedsLayout(bool flag = true);
void setLastChangeWasHorizontalExtension(bool b) { m_lastChangeWasHorizontalExtension = b; }
void willBeModified(EAlteration, EDirection);
bool isNone() const { return m_sel.isNone(); }
bool isCaret() const { return m_sel.isCaret(); }
bool isRange() const { return m_sel.isRange(); }
bool isCaretOrRange() const { return m_sel.isCaretOrRange(); }
bool isInPasswordField() const;
bool isInsideNode() const;
PassRefPtr<Range> toRange() const { return m_sel.toRange(); }
void debugRenderer(RenderObject*, bool selected) const;
void nodeWillBeRemoved(Node*);
bool recomputeCaretRect(); void invalidateCaretRect();
void paintCaret(GraphicsContext*, const IntRect&);
void setCaretBlinkingSuspended(bool suspended) { m_isCaretBlinkingSuspended = suspended; }
bool isCaretBlinkingSuspended() const { return m_isCaretBlinkingSuspended; }
void setFocused(bool);
bool isFocusedAndActive() const;
void pageActivationChanged();
#ifndef NDEBUG
void formatForDebugger(char* buffer, unsigned length) const;
void showTreeForThis() const;
#endif
private:
enum EPositionType { START, END, BASE, EXTENT };
VisiblePosition modifyExtendingRightForward(TextGranularity);
VisiblePosition modifyMovingRightForward(TextGranularity);
VisiblePosition modifyExtendingLeftBackward(TextGranularity);
VisiblePosition modifyMovingLeftBackward(TextGranularity);
void layout();
IntRect caretRepaintRect() const;
int xPosForVerticalArrowNavigation(EPositionType);
#if PLATFORM(MAC)
void notifyAccessibilityForSelectionChange();
#else
void notifyAccessibilityForSelectionChange() {};
#endif
void focusedOrActiveStateChanged();
Selection m_sel;
IntRect m_caretRect;
IntPoint m_caretPositionOnLayout;
bool m_needsLayout : 1; bool m_lastChangeWasHorizontalExtension : 1;
Frame* m_frame;
bool m_isDragCaretController;
bool m_isCaretBlinkingSuspended;
int m_xPosForVerticalArrowNavigation;
bool m_focused;
};
inline bool operator==(const SelectionController& a, const SelectionController& b)
{
return a.start() == b.start() && a.end() == b.end() && a.affinity() == b.affinity();
}
inline bool operator!=(const SelectionController& a, const SelectionController& b)
{
return !(a == b);
}
}
#ifndef NDEBUG
void showTree(const WebCore::SelectionController&);
void showTree(const WebCore::SelectionController*);
#endif
#endif // SelectionController_h