1 | /* |
2 | * Copyright (C) 2014-2015 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 | #pragma once |
27 | |
28 | #if ENABLE(ASYNC_SCROLLING) |
29 | |
30 | #include "MessageReceiver.h" |
31 | #include <WebCore/AsyncScrollingCoordinator.h> |
32 | #include <WebCore/ScrollTypes.h> |
33 | #include <WebCore/ScrollingConstraints.h> |
34 | #include <WebCore/Timer.h> |
35 | |
36 | namespace IPC { |
37 | class Decoder; |
38 | class Encoder; |
39 | } |
40 | |
41 | namespace WebKit { |
42 | |
43 | class WebPage; |
44 | class RemoteScrollingCoordinatorTransaction; |
45 | |
46 | class RemoteScrollingCoordinator : public WebCore::AsyncScrollingCoordinator, public IPC::MessageReceiver { |
47 | public: |
48 | static Ref<RemoteScrollingCoordinator> create(WebPage* page) |
49 | { |
50 | return adoptRef(*new RemoteScrollingCoordinator(page)); |
51 | } |
52 | |
53 | void buildTransaction(RemoteScrollingCoordinatorTransaction&); |
54 | |
55 | private: |
56 | RemoteScrollingCoordinator(WebPage*); |
57 | virtual ~RemoteScrollingCoordinator(); |
58 | |
59 | bool isRemoteScrollingCoordinator() const override { return true; } |
60 | |
61 | // ScrollingCoordinator |
62 | bool coordinatesScrollingForFrameView(const WebCore::FrameView&) const override; |
63 | void scheduleTreeStateCommit() override; |
64 | |
65 | bool isRubberBandInProgress() const override; |
66 | void setScrollPinningBehavior(WebCore::ScrollPinningBehavior) override; |
67 | bool isScrollSnapInProgress() const override; |
68 | |
69 | // IPC::MessageReceiver |
70 | void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override; |
71 | |
72 | // Respond to UI process changes. |
73 | void scrollPositionChangedForNode(WebCore::ScrollingNodeID, const WebCore::FloatPoint& scrollPosition, bool syncLayerPosition); |
74 | void currentSnapPointIndicesChangedForNode(WebCore::ScrollingNodeID, unsigned horizontal, unsigned vertical); |
75 | |
76 | WebPage* m_webPage; |
77 | }; |
78 | |
79 | } // namespace WebKit |
80 | |
81 | SPECIALIZE_TYPE_TRAITS_SCROLLING_COORDINATOR(WebKit::RemoteScrollingCoordinator, isRemoteScrollingCoordinator()); |
82 | |
83 | #endif // ENABLE(ASYNC_SCROLLING) |
84 | |