1/*
2 * Copyright (C) 2011 Google Inc.
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 DragState_h
27#define DragState_h
28
29#include "core/page/DragActions.h"
30#include "wtf/Noncopyable.h"
31#include "wtf/RefPtr.h"
32
33namespace blink {
34
35class DataTransfer;
36class Node;
37
38class DragState : public NoBaseWillBeGarbageCollected<DragState> {
39    WTF_MAKE_NONCOPYABLE(DragState);
40public:
41    DragState() { }
42
43    RefPtrWillBeMember<Node> m_dragSrc; // element that may be a drag source, for the current mouse gesture
44    DragSourceAction m_dragType;
45    RefPtrWillBeMember<DataTransfer> m_dragDataTransfer; // used on only the source side of dragging
46
47    void trace(Visitor* visitor)
48    {
49        visitor->trace(m_dragSrc);
50        visitor->trace(m_dragDataTransfer);
51    }
52};
53
54} // namespace blink
55
56#endif // DragState_h
57