1 /* 2 * Copyright (C) 2013 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef PinchViewports_h 32 #define PinchViewports_h 33 34 #include "platform/geometry/IntSize.h" 35 #include "platform/graphics/GraphicsLayerClient.h" 36 #include "public/platform/WebScrollbar.h" 37 #include "public/platform/WebSize.h" 38 #include "wtf/OwnPtr.h" 39 #include "wtf/PassOwnPtr.h" 40 41 namespace WebCore { 42 class GraphicsContext; 43 class GraphicsLayer; 44 class IntRect; 45 class IntSize; 46 } 47 48 namespace blink { 49 50 class WebLayerTreeView; 51 class WebScrollbarLayer; 52 class WebViewImpl; 53 54 class PinchViewports : WebCore::GraphicsLayerClient { 55 public: 56 static PassOwnPtr<PinchViewports> create(WebViewImpl* owner); 57 ~PinchViewports(); 58 59 void setOverflowControlsHostLayer(WebCore::GraphicsLayer*); rootGraphicsLayer()60 WebCore::GraphicsLayer* rootGraphicsLayer() 61 { 62 return m_innerViewportContainerLayer.get(); 63 } 64 void setViewportSize(const WebCore::IntSize&); 65 66 void registerViewportLayersWithTreeView(WebLayerTreeView*) const; 67 void clearViewportLayersForTreeView(WebLayerTreeView*) const; 68 69 // GraphicsLayerClient implementation. 70 virtual void notifyAnimationStarted(const WebCore::GraphicsLayer*, double wallClockTime, double monotonicTime) OVERRIDE; 71 virtual void paintContents(const WebCore::GraphicsLayer*, WebCore::GraphicsContext&, WebCore::GraphicsLayerPaintingPhase, const WebCore::IntRect& inClip) OVERRIDE; 72 73 virtual String debugName(const WebCore::GraphicsLayer*) OVERRIDE; 74 75 private: 76 explicit PinchViewports(WebViewImpl* owner); 77 78 void setupScrollbar(blink::WebScrollbar::Orientation); 79 80 WebViewImpl* m_owner; 81 OwnPtr<WebCore::GraphicsLayer> m_innerViewportContainerLayer; 82 OwnPtr<WebCore::GraphicsLayer> m_pageScaleLayer; 83 OwnPtr<WebCore::GraphicsLayer> m_innerViewportScrollLayer; 84 OwnPtr<WebCore::GraphicsLayer> m_overlayScrollbarHorizontal; 85 OwnPtr<WebCore::GraphicsLayer> m_overlayScrollbarVertical; 86 OwnPtr<WebScrollbarLayer> m_webOverlayScrollbarHorizontal; 87 OwnPtr<WebScrollbarLayer> m_webOverlayScrollbarVertical; 88 }; 89 90 } // namespace blink 91 92 #endif // PinchViewports_h 93