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 DrawingArea_h 27 #define DrawingArea_h 28 29 #include "DrawingAreaInfo.h" 30 #include <WebCore/IntRect.h> 31 #include <wtf/Noncopyable.h> 32 #include <wtf/PassOwnPtr.h> 33 34 namespace CoreIPC { 35 class ArgumentDecoder; 36 class Connection; 37 class MessageID; 38 } 39 40 namespace WebCore { 41 class GraphicsLayer; 42 } 43 44 namespace WebKit { 45 46 class WebPage; 47 struct WebPageCreationParameters; 48 49 class DrawingArea { 50 WTF_MAKE_NONCOPYABLE(DrawingArea); 51 52 public: 53 static PassOwnPtr<DrawingArea> create(WebPage*, const WebPageCreationParameters&); 54 virtual ~DrawingArea(); 55 56 #if PLATFORM(MAC) || PLATFORM(WIN) 57 void didReceiveDrawingAreaMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*); 58 #endif 59 60 virtual void setNeedsDisplay(const WebCore::IntRect&) = 0; 61 virtual void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollOffset) = 0; 62 63 // FIXME: These should be pure virtual. pageBackgroundTransparencyChanged()64 virtual void pageBackgroundTransparencyChanged() { } forceRepaint()65 virtual void forceRepaint() { } 66 didInstallPageOverlay()67 virtual void didInstallPageOverlay() { } didUninstallPageOverlay()68 virtual void didUninstallPageOverlay() { } setPageOverlayNeedsDisplay(const WebCore::IntRect &)69 virtual void setPageOverlayNeedsDisplay(const WebCore::IntRect&) { } 70 71 #if USE(ACCELERATED_COMPOSITING) 72 virtual void setRootCompositingLayer(WebCore::GraphicsLayer*) = 0; 73 virtual void scheduleCompositingLayerSync() = 0; 74 virtual void syncCompositingLayers() = 0; 75 #endif 76 77 virtual void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*) = 0; 78 79 protected: 80 DrawingArea(DrawingAreaType, WebPage*); 81 82 DrawingAreaType m_type; 83 WebPage* m_webPage; 84 85 private: 86 // CoreIPC message handlers. 87 // FIXME: These should be pure virtual. updateBackingStoreState(uint64_t backingStoreStateID,bool respondImmediately,const WebCore::IntSize & size,const WebCore::IntSize & scrollOffset)88 virtual void updateBackingStoreState(uint64_t backingStoreStateID, bool respondImmediately, const WebCore::IntSize& size, const WebCore::IntSize& scrollOffset) { } didUpdate()89 virtual void didUpdate() { } suspendPainting()90 virtual void suspendPainting() { } resumePainting()91 virtual void resumePainting() { } 92 }; 93 94 } // namespace WebKit 95 96 #endif // DrawingArea_h 97