SelectionController.h [plain text]
#ifndef SelectionController_h
#define SelectionController_h
#include "IntRect.h"
#include "Range.h"
#include "Timer.h"
#include "VisibleSelection.h"
#include <wtf/Noncopyable.h>
#include "Color.h"
namespace WebCore {
class Frame;
class GraphicsContext;
class RenderObject;
class VisiblePosition;
class SelectionController : public Noncopyable {
public:
enum EAlteration { MOVE, EXTEND };
enum EDirection { FORWARD, BACKWARD, RIGHT, LEFT };
SelectionController(Frame* = 0, bool isDragCaretController = false);
Element* rootEditableElement() const { return m_selection.rootEditableElement(); }
bool isContentEditable() const { return m_selection.isContentEditable(); }
bool isContentRichlyEditable() const { return m_selection.isContentRichlyEditable(); }
Node* shadowTreeRootNode() const { return m_selection.shadowTreeRootNode(); }
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 VisibleSelection& selection() const { return m_selection; }
void setSelection(const VisibleSelection&, 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&);
VisibleSelection::SelectionType selectionType() const { return m_selection.selectionType(); }
EAffinity affinity() const { return m_selection.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_selection.base(); }
Position extent() const { return m_selection.extent(); }
Position start() const { return m_selection.start(); }
Position end() const { return m_selection.end(); }
RenderObject* caretRenderer() const;
IntRect localCaretRect() const;
IntRect absoluteCaretBounds();
void setNeedsLayout(bool flag = true);
void setLastChangeWasHorizontalExtension(bool b) { m_lastChangeWasHorizontalExtension = b; }
void willBeModified(EAlteration, EDirection);
bool isNone() const { return m_selection.isNone(); }
bool isCaret() const { return m_selection.isCaret(); }
bool isRange() const { return m_selection.isRange(); }
bool isCaretOrRange() const { return m_selection.isCaretOrRange(); }
bool isInPasswordField() const;
bool isAll(StayInEditableContent stayInEditableContent = MustStayInEditableContent) const { return m_selection.isAll(stayInEditableContent); }
PassRefPtr<Range> toNormalizedRange() const { return m_selection.toNormalizedRange(); }
void debugRenderer(RenderObject*, bool selected) const;
void nodeWillBeRemoved(Node*);
void setCaretVisible(bool = true);
void clearCaretRectIfNeeded();
bool recomputeCaretRect(); void invalidateCaretRect();
void paintCaret(GraphicsContext*, int tx, int ty, const IntRect& clipRect);
void setCaretBlinkingSuspended(bool suspended) { m_isCaretBlinkingSuspended = suspended; }
bool isCaretBlinkingSuspended() const { return m_isCaretBlinkingSuspended; }
void setFocused(bool);
bool isFocused() const { return m_focused; }
bool isFocusedAndActive() const;
void pageActivationChanged();
void updateAppearance();
#ifndef NDEBUG
void formatForDebugger(char* buffer, unsigned length) const;
void showTreeForThis() const;
#endif
public:
void expandSelectionToElementContainingCaretSelection();
PassRefPtr<Range> elementRangeContainingCaretSelection() const;
void expandSelectionToWordContainingCaretSelection();
PassRefPtr<Range> wordRangeContainingCaretSelection();
void expandSelectionToStartOfWordContainingCaretSelection();
UChar characterInRelationToCaretSelection(int amount) const;
UChar characterBeforeCaretSelection() const;
UChar characterAfterCaretSelection() const;
int wordOffsetInRange(const Range *range) const;
bool spaceFollowsWordInRange(const Range * range) const;
bool selectionAtDocumentStart() const;
bool selectionAtSentenceStart() const;
bool selectionAtWordStart() const;
PassRefPtr<Range> rangeByMovingCurrentSelection(int amount) const;
PassRefPtr<Range> rangeByExtendingCurrentSelection(int amount) const;
void selectRangeOnElement(unsigned int location, unsigned int length, Node* node);
void suppressCloseTyping() { ++m_closeTypingSuppressions; }
void restoreCloseTyping() { --m_closeTypingSuppressions; }
void clearCurrentSelection();
void setCaretBlinks(bool caretBlinks = true);
void setCaretColor(const Color&);
static VisibleSelection wordSelectionContainingCaretSelection(const VisibleSelection&);
void setUpdateAppearanceEnabled(bool enabled) { m_updateAppearanceEnabled = enabled; }
private:
bool _selectionAtSentenceStart(const VisibleSelection& sel) const;
PassRefPtr<Range> _rangeByAlteringCurrentSelection(EAlteration alteration, int amount) const;
private:
enum EPositionType { START, END, BASE, EXTENT };
TextDirection directionOfEnclosingBlock();
VisiblePosition modifyExtendingRight(TextGranularity);
VisiblePosition modifyExtendingForward(TextGranularity);
VisiblePosition modifyMovingRight(TextGranularity);
VisiblePosition modifyMovingForward(TextGranularity);
VisiblePosition modifyExtendingLeft(TextGranularity);
VisiblePosition modifyExtendingBackward(TextGranularity);
VisiblePosition modifyMovingLeft(TextGranularity);
VisiblePosition modifyMovingBackward(TextGranularity);
void layout();
IntRect caretRepaintRect() const;
int xPosForVerticalArrowNavigation(EPositionType);
void notifyAccessibilityForSelectionChange();
void focusedOrActiveStateChanged();
bool caretRendersInsideNode(Node*) const;
IntRect absoluteBoundsForLocalRect(const IntRect&) const;
void caretBlinkTimerFired(Timer<SelectionController>*);
Frame* m_frame;
int m_xPosForVerticalArrowNavigation;
VisibleSelection m_selection;
Timer<SelectionController> m_caretBlinkTimer;
IntRect m_caretRect; IntRect m_absCaretBounds; IntRect m_absoluteCaretRepaintBounds;
bool m_needsLayout; bool m_absCaretBoundsDirty;
bool m_lastChangeWasHorizontalExtension;
bool m_isDragCaretController;
bool m_isCaretBlinkingSuspended;
bool m_focused;
bool m_caretVisible;
bool m_caretPaint;
bool m_updateAppearanceEnabled;
bool m_caretBlinks;
Color m_caretColor;
int m_closeTypingSuppressions;
};
#if !(PLATFORM(MAC) || PLATFORM(GTK))
inline void SelectionController::notifyAccessibilityForSelectionChange()
{
}
#endif
}
#ifndef NDEBUG
void showTree(const WebCore::SelectionController&);
void showTree(const WebCore::SelectionController*);
#endif
#endif // SelectionController_h