1 /* 2 * Copyright (C) 2010 Apple Inc. All rights reserved. 3 * Portions Copyright (c) 2010 Motorola Mobility, Inc. All rights reserved. 4 * Copyright (C) 2011 Igalia S.L 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 17 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 19 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 25 * THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef ChunkedUpdateDrawingAreaProxy_h 29 #define ChunkedUpdateDrawingAreaProxy_h 30 31 #include "DrawingAreaProxy.h" 32 #include <WebCore/IntSize.h> 33 #include <wtf/PassOwnPtr.h> 34 #include <wtf/OwnPtr.h> 35 36 #if PLATFORM(MAC) 37 #include <wtf/RetainPtr.h> 38 OBJC_CLASS WKView; 39 #elif PLATFORM(QT) 40 #include <QImage> 41 class QGraphicsWKView; 42 #elif PLATFORM(GTK) 43 typedef struct _cairo_surface cairo_surface_t; 44 #endif 45 46 namespace WebKit { 47 48 class UpdateChunk; 49 class WebPageProxy; 50 51 #if PLATFORM(MAC) 52 typedef WKView PlatformWebView; 53 #elif PLATFORM(WIN) 54 class WebView; 55 typedef WebView PlatformWebView; 56 #elif PLATFORM(QT) 57 typedef QGraphicsWKView PlatformWebView; 58 #elif PLATFORM(GTK) 59 class WebView; 60 typedef WebView PlatformWebView; 61 #endif 62 63 class ChunkedUpdateDrawingAreaProxy : public DrawingAreaProxy { 64 public: 65 static PassOwnPtr<ChunkedUpdateDrawingAreaProxy> create(PlatformWebView*, WebPageProxy*); 66 67 virtual ~ChunkedUpdateDrawingAreaProxy(); 68 69 private: 70 ChunkedUpdateDrawingAreaProxy(PlatformWebView*, WebPageProxy*); 71 72 WebPageProxy* page(); 73 74 // DrawingAreaProxy 75 virtual void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*); 76 virtual bool paint(const WebCore::IntRect&, PlatformDrawingContext); 77 virtual void sizeDidChange(); 78 virtual void setPageIsVisible(bool isVisible); 79 80 void ensureBackingStore(); 81 void invalidateBackingStore(); 82 bool platformPaint(const WebCore::IntRect&, PlatformDrawingContext); 83 void drawUpdateChunkIntoBackingStore(UpdateChunk*); 84 void didSetSize(UpdateChunk*); 85 void deprecatedUpdate(UpdateChunk*); 86 87 void sendSetSize(); 88 89 bool m_isWaitingForDidSetFrameNotification; 90 bool m_isVisible; 91 bool m_forceRepaintWhenResumingPainting; 92 93 #if PLATFORM(MAC) 94 // BackingStore 95 RetainPtr<CGContextRef> m_bitmapContext; 96 #elif PLATFORM(WIN) 97 // BackingStore 98 OwnPtr<HDC> m_backingStoreDC; 99 OwnPtr<HBITMAP> m_backingStoreBitmap; 100 #elif PLATFORM(QT) 101 QImage m_backingStoreImage; 102 #elif PLATFORM(GTK) 103 cairo_surface_t* m_backingStoreImage; 104 #endif 105 106 PlatformWebView* m_webView; 107 }; 108 109 } // namespace WebKit 110 111 #endif // ChunkedUpdateDrawingAreaProxy_h 112