1/*
2 * Copyright (C) 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 ClipboardQt_h
27#define ClipboardQt_h
28
29#include "CachedResourceClient.h"
30#include "Clipboard.h"
31
32QT_BEGIN_NAMESPACE
33class QMimeData;
34QT_END_NAMESPACE
35
36namespace WebCore {
37
38class CachedImage;
39
40// State available during IE's events for drag and drop and copy/paste
41class ClipboardQt : public Clipboard, public CachedResourceClient {
42    WTF_MAKE_FAST_ALLOCATED;
43public:
44    static PassRefPtr<ClipboardQt> create(ClipboardAccessPolicy policy, const QMimeData* readableClipboard)
45    {
46        return adoptRef(new ClipboardQt(policy, readableClipboard));
47    }
48    static PassRefPtr<ClipboardQt> create(ClipboardAccessPolicy policy, ClipboardType clipboardType = CopyAndPaste)
49    {
50        return adoptRef(new ClipboardQt(policy, clipboardType));
51    }
52    virtual ~ClipboardQt();
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    virtual void writePlainText(const String&);
71
72    virtual bool hasData();
73
74    QMimeData* clipboardData() const { return m_writableData; }
75    void invalidateWritableData() { m_writableData = 0; }
76
77private:
78    ClipboardQt(ClipboardAccessPolicy, const QMimeData* readableClipboard);
79
80    // Clipboard is writable so it will create its own QMimeData object
81    ClipboardQt(ClipboardAccessPolicy, ClipboardType);
82
83    void setDragImage(CachedImage*, Node*, const IntPoint& loc);
84
85    const QMimeData* m_readableData;
86    QMimeData* m_writableData;
87};
88}
89
90#endif // ClipboardQt_h
91