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1 /*
2  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef ClipboardWin_h
27 #define ClipboardWin_h
28 
29 #include "CachedResourceClient.h"
30 #include "Clipboard.h"
31 #include "COMPtr.h"
32 
33 struct IDataObject;
34 
35 namespace WebCore {
36 
37     class CachedImage;
38     class IntPoint;
39     class WCDataObject;
40 
41     // State available during IE's events for drag and drop and copy/paste
42     class ClipboardWin : public Clipboard, public CachedResourceClient {
43     public:
create(bool isForDragging,IDataObject * dataObject,ClipboardAccessPolicy policy)44         static PassRefPtr<ClipboardWin> create(bool isForDragging, IDataObject* dataObject, ClipboardAccessPolicy policy)
45         {
46             return adoptRef(new ClipboardWin(isForDragging, dataObject, policy));
47         }
create(bool isForDragging,WCDataObject * dataObject,ClipboardAccessPolicy policy)48         static PassRefPtr<ClipboardWin> create(bool isForDragging, WCDataObject* dataObject, ClipboardAccessPolicy policy)
49         {
50             return adoptRef(new ClipboardWin(isForDragging, dataObject, policy));
51         }
52         ~ClipboardWin();
53 
54         void clearData(const String& type);
55         void clearAllData();
56         String getData(const String& type, bool& success) const;
57         bool setData(const String& type, const String& data);
58 
59         // extensions beyond IE's API
60         virtual HashSet<String> types() const;
61         virtual PassRefPtr<FileList> files() const;
62 
63         void setDragImage(CachedImage*, const IntPoint&);
64         void setDragImageElement(Node*, const IntPoint&);
65 
66         virtual DragImageRef createDragImage(IntPoint& dragLoc) const;
67         virtual void declareAndWriteDragImage(Element*, const KURL&, const String& title, Frame*);
68         virtual void writeURL(const KURL&, const String&, Frame*);
69         virtual void writeRange(Range*, Frame*);
70 
71         virtual bool hasData();
72 
dataObject()73         COMPtr<IDataObject> dataObject() { return m_dataObject; }
74 
75         void setExternalDataObject(IDataObject *dataObject);
76 
77     private:
78         ClipboardWin(bool isForDragging, IDataObject*, ClipboardAccessPolicy);
79         ClipboardWin(bool isForDragging, WCDataObject*, ClipboardAccessPolicy);
80 
81         void resetFromClipboard();
82         void setDragImage(CachedImage*, Node*, const IntPoint&);
83 
84         COMPtr<IDataObject> m_dataObject;
85         COMPtr<WCDataObject> m_writableDataObject;
86         Frame* m_frame;
87     };
88 
89 } // namespace WebCore
90 
91 #endif // ClipboardWin_h
92