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 RemoteLayerTreeHost_h 27#define RemoteLayerTreeHost_h 28 29#include "LayerRepresentation.h" 30#include "RemoteLayerTreeTransaction.h" 31#include <WebCore/PlatformCALayer.h> 32#include <wtf/HashMap.h> 33#include <wtf/RetainPtr.h> 34 35OBJC_CLASS CAAnimation; 36OBJC_CLASS WKAnimationDelegate; 37 38namespace WebKit { 39 40class RemoteLayerTreeDrawingAreaProxy; 41class WebPageProxy; 42 43class RemoteLayerTreeHost { 44public: 45 explicit RemoteLayerTreeHost(RemoteLayerTreeDrawingAreaProxy&); 46 virtual ~RemoteLayerTreeHost(); 47 48 LayerOrView *getLayer(WebCore::GraphicsLayer::PlatformLayerID) const; 49 LayerOrView *rootLayer() const { return m_rootLayer; } 50 51 static WebCore::GraphicsLayer::PlatformLayerID layerID(CALayer*); 52 53 // Returns true if the root layer changed. 54 bool updateLayerTree(const RemoteLayerTreeTransaction&, float indicatorScaleFactor = 1); 55 56 void setIsDebugLayerTreeHost(bool flag) { m_isDebugLayerTreeHost = flag; } 57 bool isDebugLayerTreeHost() const { return m_isDebugLayerTreeHost; } 58 59 typedef HashMap<WebCore::GraphicsLayer::PlatformLayerID, RetainPtr<WKAnimationDelegate>> LayerAnimationDelegateMap; 60 LayerAnimationDelegateMap& animationDelegates() { return m_animationDelegates; } 61 62 void animationDidStart(WebCore::GraphicsLayer::PlatformLayerID, CAAnimation *, double startTime); 63 64 void clearLayers(); 65 66 // Detach the root layer; it will be reattached upon the next incoming commit. 67 void detachRootLayer(); 68 69private: 70 LayerOrView *createLayer(const RemoteLayerTreeTransaction::LayerCreationProperties&, const RemoteLayerTreeTransaction::LayerProperties*); 71 static void setLayerID(CALayer *, WebCore::GraphicsLayer::PlatformLayerID); 72 73 void layerWillBeRemoved(WebCore::GraphicsLayer::PlatformLayerID); 74 75 RemoteLayerTreeDrawingAreaProxy& m_drawingArea; 76 LayerOrView *m_rootLayer; 77 HashMap<WebCore::GraphicsLayer::PlatformLayerID, RetainPtr<LayerOrView>> m_layers; 78 HashMap<WebCore::GraphicsLayer::PlatformLayerID, RetainPtr<WKAnimationDelegate>> m_animationDelegates; 79 bool m_isDebugLayerTreeHost; 80}; 81 82} // namespace WebKit 83 84#endif // RemoteLayerTreeHost_h 85