#ifndef DragController_h
#define DragController_h
#include "DragActions.h"
#include "DragImage.h"
#include "IntPoint.h"
#include "KURL.h"
namespace WebCore {
class Clipboard;
class Document;
class DragClient;
class DragData;
class Element;
class Frame;
class Image;
class IntRect;
class Node;
class Page;
class PlatformMouseEvent;
class Range;
class SelectionController;
class DragController : public Noncopyable {
public:
DragController(Page*, DragClient*);
~DragController();
DragClient* client() const { return m_client; }
DragOperation dragEntered(DragData*);
void dragExited(DragData*);
DragOperation dragUpdated(DragData*);
bool performDrag(DragData*);
void setDidInitiateDrag(bool initiated) { m_didInitiateDrag = initiated; }
bool didInitiateDrag() const { return m_didInitiateDrag; }
void setIsHandlingDrag(bool handling) { m_isHandlingDrag = handling; }
bool isHandlingDrag() const { return m_isHandlingDrag; }
DragOperation sourceDragOperation() const { return m_sourceDragOperation; }
void setDraggingImageURL(const KURL& url) { m_draggingImageURL = url; }
const KURL& draggingImageURL() const { return m_draggingImageURL; }
void setDragOffset(const IntPoint& offset) { m_dragOffset = offset; }
const IntPoint& dragOffset() const { return m_dragOffset; }
DragSourceAction dragSourceAction() const { return m_dragSourceAction; }
Document* documentUnderMouse() const { return m_documentUnderMouse.get(); }
DragDestinationAction dragDestinationAction() const { return m_dragDestinationAction; }
DragSourceAction delegateDragSourceAction(const IntPoint& pagePoint);
bool mayStartDragAtEventLocation(const Frame*, const IntPoint& framePos, Node*);
void dragEnded();
void placeDragCaret(const IntPoint&);
bool startDrag(Frame* src, Clipboard*, DragOperation srcOp, const PlatformMouseEvent& dragEvent, const IntPoint& dragOrigin, bool isDHTMLDrag);
static const IntSize& maxDragImageSize();
static const int LinkDragBorderInset;
static const int MaxOriginalImageArea;
static const int DragIconRightInset;
static const int DragIconBottomInset;
static const float DragImageAlpha;
private:
bool canProcessDrag(DragData*);
bool concludeEditDrag(DragData*);
DragOperation dragEnteredOrUpdated(DragData*);
DragOperation operationForLoad(DragData*);
bool tryDocumentDrag(DragData*, DragDestinationAction, DragOperation&);
bool tryDHTMLDrag(DragData*, DragOperation&);
DragOperation dragOperation(DragData*);
void cancelDrag();
bool dragIsMove(SelectionController*);
bool isCopyKeyDown();
void mouseMovedIntoDocument(Document*);
IntRect selectionDraggingRect(Frame*);
bool doDrag(Frame* src, Clipboard* clipboard, DragImageRef dragImage, const KURL& linkURL, const KURL& imageURL, Node* node, IntPoint& dragLoc, IntPoint& dragImageOffset);
void doImageDrag(Element*, const IntPoint&, const IntRect&, Clipboard*, Frame*, IntPoint&);
void doSystemDrag(DragImageRef, const IntPoint&, const IntPoint&, Clipboard*, Frame*, bool forLink);
void cleanupAfterSystemDrag();
Page* m_page;
DragClient* m_client;
RefPtr<Document> m_documentUnderMouse; RefPtr<Document> m_dragInitiator;
DragDestinationAction m_dragDestinationAction;
DragSourceAction m_dragSourceAction;
bool m_didInitiateDrag;
bool m_isHandlingDrag;
DragOperation m_sourceDragOperation; IntPoint m_dragOffset;
KURL m_draggingImageURL;
};
}
#endif