--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/page/DragController.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2007 Apple Inc.  All rights reserved.
+ *
+ * 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS 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 DragController_h
+#define DragController_h
+
+#include "DragActions.h"
+#include "DragImage.h"
+#include "IntPoint.h"
+#include "IntRect.h"
+#include "KURL.h"
+
+namespace WebCore {
+
+    class Clipboard;
+    class Document;
+    class DragClient;
+    class DragData;
+    class Element;
+    class Frame;
+    class Image;
+    class Node;
+    class Page;
+    class PlatformMouseEvent;
+    class Range;
+    class SelectionController;
+    
+    class DragController {
+    public:
+        DragController(Page*, DragClient*);
+        ~DragController();
+        DragClient* client() const { return m_client; }
+
+        DragOperation dragEntered(DragData*);
+        void dragExited(DragData*);
+        DragOperation dragUpdated(DragData*);
+        bool performDrag(DragData*);
+        
+        //FIXME: It should be possible to remove a number of these accessors once all
+        //drag logic is in WebCore
+        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; }
+        void setDragOperation(DragOperation dragOp) { m_dragOperation = dragOp; }
+        DragOperation dragOperation() const { return m_dragOperation; }       
+        void setDraggingImageURL(const KURL& url) { m_draggingImageURL = url; }
+        const KURL& draggingImageURL() const { return m_draggingImageURL; }
+        void setDragInitiator(Document* initiator) { m_dragInitiator = initiator; m_didInitiateDrag = true; }
+        Document* dragInitiator() const { return m_dragInitiator; }
+        void setDragOffset(const IntPoint& offset) { m_dragOffset = offset; }
+        const IntPoint& dragOffset() const { return m_dragOffset; }
+        DragSourceAction dragSourceAction() const { return m_dragSourceAction; }
+        
+        Document* document() const { return m_document; }
+        DragDestinationAction dragDestinationAction() const { return m_dragDestinationAction; }
+        DragSourceAction delegateDragSourceAction(const IntPoint& pagePoint);
+        
+        bool mayStartDragAtEventLocation(const Frame*, const IntPoint& framePos);
+        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 concludeDrag(DragData*, DragDestinationAction);
+        DragOperation dragEnteredOrUpdated(DragData*);
+        DragOperation operationForLoad(DragData*);
+        DragOperation tryDocumentDrag(DragData*, DragDestinationAction);
+        DragOperation tryDHTMLDrag(DragData*);
+        DragOperation dragOperation(DragData*);
+        void cancelDrag();
+        bool dragIsMove(SelectionController*, DragData*);
+        bool isCopyKeyDown();
+
+        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);
+        Page* m_page;
+        DragClient* m_client;
+        
+        //The Document the mouse was last dragged over
+        Document* m_document;
+        
+        //The Document (if any) that initiated the drag
+        Document* m_dragInitiator;
+        
+        DragDestinationAction m_dragDestinationAction;
+        DragSourceAction m_dragSourceAction;
+        bool m_didInitiateDrag;
+        bool m_isHandlingDrag;
+        DragOperation m_dragOperation;
+        IntPoint m_dragOffset;
+        KURL m_draggingImageURL;
+        
+    };
+
+}
+
+#endif