1/*
2 * Copyright (C) 2011 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 UpdateInfo_h
27#define UpdateInfo_h
28
29#include "ShareableBitmap.h"
30#include <WebCore/IntRect.h>
31#include <wtf/Noncopyable.h>
32
33namespace CoreIPC {
34    class ArgumentDecoder;
35    class ArgumentEncoder;
36}
37
38namespace WebKit {
39
40class UpdateInfo {
41    WTF_MAKE_NONCOPYABLE(UpdateInfo);
42
43public:
44    UpdateInfo() { }
45
46    void encode(CoreIPC::ArgumentEncoder&) const;
47    static bool decode(CoreIPC::ArgumentDecoder&, UpdateInfo&);
48
49    // The size of the web view.
50    WebCore::IntSize viewSize;
51    float deviceScaleFactor;
52
53    // The rect and delta to be scrolled.
54    WebCore::IntRect scrollRect;
55    WebCore::IntSize scrollOffset;
56
57    // The bounds of the update rects.
58    WebCore::IntRect updateRectBounds;
59
60    // All the update rects, in view coordinates.
61    Vector<WebCore::IntRect> updateRects;
62
63    // The page scale factor used to render this update.
64    float updateScaleFactor;
65
66    // The handle of the shareable bitmap containing the updates. Will be null if there are no updates.
67    ShareableBitmap::Handle bitmapHandle;
68
69    // The offset in the bitmap where the rendered contents are.
70    WebCore::IntPoint bitmapOffset;
71};
72
73} // namespace WebKit
74
75#endif // UpdateInfo_h
76