1/*
2 * Copyright (C) 2012 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 RemoteLayerTreeContext_h
27#define RemoteLayerTreeContext_h
28
29#include "LayerTreeContext.h"
30#include "RemoteLayerBackingStoreCollection.h"
31#include "RemoteLayerTreeTransaction.h"
32#include "WebPage.h"
33#include <WebCore/GraphicsLayerFactory.h>
34#include <WebCore/LayerPool.h>
35#include <WebCore/PlatformCALayer.h>
36#include <wtf/Vector.h>
37
38namespace WebKit {
39
40class PlatformCALayerRemote;
41class WebPage;
42
43// FIXME: This class doesn't do much now. Roll into RemoteLayerTreeDrawingArea?
44class RemoteLayerTreeContext : public WebCore::GraphicsLayerFactory {
45public:
46    explicit RemoteLayerTreeContext(WebPage&);
47    ~RemoteLayerTreeContext();
48
49    void layerWasCreated(PlatformCALayerRemote&, WebCore::PlatformCALayer::LayerType);
50    void layerWillBeDestroyed(PlatformCALayerRemote&);
51
52    void backingStoreWasCreated(RemoteLayerBackingStore&);
53    void backingStoreWillBeDestroyed(RemoteLayerBackingStore&);
54    void backingStoreWillBeDisplayed(RemoteLayerBackingStore&);
55
56    WebCore::LayerPool& layerPool() { return m_layerPool; }
57
58    LayerHostingMode layerHostingMode() const { return m_webPage.layerHostingMode(); }
59
60    void buildTransaction(RemoteLayerTreeTransaction&, WebCore::PlatformCALayer& rootLayer);
61
62    void layerPropertyChangedWhileBuildingTransaction(PlatformCALayerRemote&);
63
64    // From the UI process
65    void animationDidStart(WebCore::GraphicsLayer::PlatformLayerID, const String& key, double startTime);
66
67    void willStartAnimationOnLayer(PlatformCALayerRemote&);
68
69    RemoteLayerBackingStoreCollection& backingStoreCollection() { return m_backingStoreCollection; }
70
71private:
72    // WebCore::GraphicsLayerFactory
73    virtual std::unique_ptr<WebCore::GraphicsLayer> createGraphicsLayer(WebCore::GraphicsLayerClient&) override;
74
75    WebPage& m_webPage;
76
77    Vector<RemoteLayerTreeTransaction::LayerCreationProperties> m_createdLayers;
78    Vector<WebCore::GraphicsLayer::PlatformLayerID> m_destroyedLayers;
79
80    HashMap<WebCore::GraphicsLayer::PlatformLayerID, PlatformCALayerRemote*> m_liveLayers;
81    HashMap<WebCore::GraphicsLayer::PlatformLayerID, PlatformCALayerRemote*> m_layersAwaitingAnimationStart;
82
83    RemoteLayerBackingStoreCollection m_backingStoreCollection;
84
85    RemoteLayerTreeTransaction* m_currentTransaction;
86
87    WebCore::LayerPool m_layerPool;
88};
89
90} // namespace WebKit
91
92#endif // RemoteLayerTreeContext_h
93