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26 #ifndef DragController_h
27 #define DragController_h
29 #include "DragActions.h"
30 #include "DragImage.h"
33 #if ENABLE(TIZEN_DRAG_SUPPORT)
34 #include "PlatformMouseEvent.h"
48 class HTMLInputElement;
53 class PlatformMouseEvent;
56 class DragController {
57 WTF_MAKE_NONCOPYABLE(DragController); WTF_MAKE_FAST_ALLOCATED;
61 static PassOwnPtr<DragController> create(Page*, DragClient*);
63 DragClient* client() const { return m_client; }
65 DragSession dragEntered(DragData*);
66 void dragExited(DragData*);
67 DragSession dragUpdated(DragData*);
68 bool performDrag(DragData*);
70 // FIXME: It should be possible to remove a number of these accessors once all
71 // drag logic is in WebCore.
72 void setDidInitiateDrag(bool initiated) { m_didInitiateDrag = initiated; }
73 bool didInitiateDrag() const { return m_didInitiateDrag; }
74 void setIsHandlingDrag(bool handling) { m_isHandlingDrag = handling; }
75 bool isHandlingDrag() const { return m_isHandlingDrag; }
76 DragOperation sourceDragOperation() const { return m_sourceDragOperation; }
77 const KURL& draggingImageURL() const { return m_draggingImageURL; }
78 void setDragOffset(const IntPoint& offset) { m_dragOffset = offset; }
79 const IntPoint& dragOffset() const { return m_dragOffset; }
80 DragSourceAction dragSourceAction() const { return m_dragSourceAction; }
82 Document* documentUnderMouse() const { return m_documentUnderMouse.get(); }
83 DragDestinationAction dragDestinationAction() const { return m_dragDestinationAction; }
84 DragSourceAction delegateDragSourceAction(const IntPoint& rootViewPoint);
86 Node* draggableNode(const Frame*, Node*, const IntPoint&, DragState&) const;
89 void placeDragCaret(const IntPoint&);
91 bool startDrag(Frame* src, const DragState&, DragOperation srcOp, const PlatformMouseEvent& dragEvent, const IntPoint& dragOrigin);
92 static const IntSize& maxDragImageSize();
94 static const int LinkDragBorderInset;
95 static const int MaxOriginalImageArea;
96 static const int DragIconRightInset;
97 static const int DragIconBottomInset;
98 static const float DragImageAlpha;
99 #if ENABLE(TIZEN_DRAG_SUPPORT)
100 void setDragState(bool state) { m_dragState = state; }
101 void setPosition(const PlatformMouseEvent event) { m_positionEvent = event; }
103 bool dragState() { return m_dragState; }
104 const PlatformMouseEvent& dragPositionEvent() { return m_positionEvent; }
108 DragController(Page*, DragClient*);
110 bool dispatchTextInputEventFor(Frame*, DragData*);
111 bool canProcessDrag(DragData*);
112 bool concludeEditDrag(DragData*);
113 DragSession dragEnteredOrUpdated(DragData*);
114 DragOperation operationForLoad(DragData*);
115 bool tryDocumentDrag(DragData*, DragDestinationAction, DragSession&);
116 bool tryDHTMLDrag(DragData*, DragOperation&);
117 DragOperation dragOperation(DragData*);
119 bool dragIsMove(FrameSelection*, DragData*);
120 bool isCopyKeyDown(DragData*);
122 void mouseMovedIntoDocument(Document*);
124 IntRect selectionDraggingRect(Frame*);
125 bool doDrag(Frame* src, Clipboard* clipboard, DragImageRef dragImage, const KURL& linkURL, const KURL& imageURL, Node* node, IntPoint& dragLoc, IntPoint& dragImageOffset);
126 void doImageDrag(Element*, const IntPoint&, const IntRect&, Clipboard*, Frame*, IntPoint&);
127 void doSystemDrag(DragImageRef, const IntPoint&, const IntPoint&, Clipboard*, Frame*, bool forLink);
128 void cleanupAfterSystemDrag();
131 DragClient* m_client;
133 RefPtr<Document> m_documentUnderMouse; // The document the mouse was last dragged over.
134 RefPtr<Document> m_dragInitiator; // The Document (if any) that initiated the drag.
135 RefPtr<HTMLInputElement> m_fileInputElementUnderMouse;
137 DragDestinationAction m_dragDestinationAction;
138 DragSourceAction m_dragSourceAction;
139 bool m_didInitiateDrag;
140 bool m_isHandlingDrag;
141 DragOperation m_sourceDragOperation; // Set in startDrag when a drag starts from a mouse down within WebKit
142 IntPoint m_dragOffset;
143 KURL m_draggingImageURL;
144 #if ENABLE(TIZEN_DRAG_SUPPORT)
146 PlatformMouseEvent m_positionEvent;