1/*
2 * Copyright (C) 2010 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 DrawingAreaMessageKinds_h
27#define DrawingAreaMessageKinds_h
28
29#include "MessageID.h"
30
31// Messages sent from the web process to the UI process.
32
33namespace DrawingAreaLegacyMessage {
34
35enum Kind {
36    // Called whenever the size of the drawing area needs to be updated.
37    SetSize,
38
39    // Called when the drawing area should stop painting.
40    SuspendPainting,
41
42    // Called when the drawing area should start painting again.
43    ResumePainting,
44
45    // Called when an update chunk sent to the drawing area has been
46    // incorporated into the backing store.
47    DidUpdate,
48
49#if ENABLE(TILED_BACKING_STORE)
50    // Called to request a tile update.
51    RequestTileUpdate,
52
53    // Called to cancel a requested tile update.
54    CancelTileUpdate,
55
56    // Called to take a snapshot of the page contents.
57    TakeSnapshot,
58#endif
59};
60
61}
62
63namespace CoreIPC {
64
65template<> struct MessageKindTraits<DrawingAreaLegacyMessage::Kind> {
66    static const MessageClass messageClass = MessageClassDrawingAreaLegacy;
67};
68
69}
70
71#endif // DrawingAreaMessageKinds_h
72