1/*
2 * Copyright (C) 2014 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 INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef RemoteScrollingCoordinatorTransaction_h
27#define RemoteScrollingCoordinatorTransaction_h
28
29#include <WebCore/ScrollingStateTree.h>
30#include <wtf/OwnPtr.h>
31#include <wtf/PassOwnPtr.h>
32
33namespace IPC {
34class ArgumentDecoder;
35class ArgumentEncoder;
36}
37
38namespace WebKit {
39
40class RemoteScrollingCoordinatorTransaction {
41public:
42
43#if ENABLE(ASYNC_SCROLLING)
44    void setStateTreeToEncode(PassOwnPtr<WebCore::ScrollingStateTree> stateTree) { m_scrollingStateTree = stateTree; }
45    OwnPtr<WebCore::ScrollingStateTree>& scrollingStateTree() { return m_scrollingStateTree; }
46#endif // ENABLE(ASYNC_SCROLLING)
47
48    void encode(IPC::ArgumentEncoder&) const;
49    static bool decode(IPC::ArgumentDecoder&, RemoteScrollingCoordinatorTransaction&);
50
51#if !defined(NDEBUG) || !LOG_DISABLED
52    WTF::CString description() const;
53    void dump() const;
54#endif
55
56private:
57#if ENABLE(ASYNC_SCROLLING)
58    bool decode(IPC::ArgumentDecoder&);
59
60    OwnPtr<WebCore::ScrollingStateTree> m_scrollingStateTree;
61#endif // ENABLE(ASYNC_SCROLLING)
62};
63
64} // namespace WebKit
65
66#endif // RemoteScrollingCoordinatorTransaction_h
67