1 /* 2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) 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 TiledDrawingAreaProxy_h 27 #define TiledDrawingAreaProxy_h 28 29 #if ENABLE(TILED_BACKING_STORE) 30 31 #include "DrawingAreaProxy.h" 32 #include <WebCore/GraphicsContext.h> 33 #include <WebCore/IntRect.h> 34 #include <wtf/HashSet.h> 35 36 #include "RunLoop.h" 37 #include "TiledDrawingAreaTile.h" 38 39 #if PLATFORM(MAC) 40 #include <wtf/RetainPtr.h> 41 #ifdef __OBJC__ 42 @class WKView; 43 #else 44 class WKView; 45 #endif 46 #elif PLATFORM(QT) 47 class QGraphicsWKView; 48 #include <QImage> 49 #endif 50 51 namespace WebKit { 52 53 class UpdateChunk; 54 class WebPageProxy; 55 56 #if PLATFORM(MAC) 57 typedef WKView PlatformWebView; 58 #elif PLATFORM(WIN) 59 class WebView; 60 typedef WebView PlatformWebView; 61 #elif PLATFORM(QT) 62 typedef QGraphicsWKView PlatformWebView; 63 #endif 64 65 class TiledDrawingAreaProxy : public DrawingAreaProxy { 66 public: 67 static PassOwnPtr<TiledDrawingAreaProxy> create(PlatformWebView* webView, WebPageProxy*); 68 69 TiledDrawingAreaProxy(PlatformWebView*, WebPageProxy*); 70 virtual ~TiledDrawingAreaProxy(); 71 72 float contentsScale() const { return m_contentsScale; } 73 void setContentsScale(float); 74 75 void waitUntilUpdatesComplete(); 76 77 void takeSnapshot(const WebCore::IntSize& size, const WebCore::IntRect& contentsRect); 78 79 #if USE(ACCELERATED_COMPOSITING) 80 virtual void attachCompositingContext(uint32_t /* contextID */) { } 81 virtual void detachCompositingContext() { } 82 #endif 83 84 void paint(WebCore::GraphicsContext*, const WebCore::IntRect&); 85 86 WebCore::IntSize tileSize() { return m_tileSize; } 87 void setTileSize(const WebCore::IntSize&); 88 89 double tileCreationDelay() const { return m_tileCreationDelay; } 90 void setTileCreationDelay(double delay); 91 92 // Tiled are dropped outside the keep area, and created for cover area. The values a relative to the viewport size. 93 void getKeepAndCoverAreaMultipliers(WebCore::FloatSize& keepMultiplier, WebCore::FloatSize& coverMultiplier) 94 { 95 keepMultiplier = m_keepAreaMultiplier; 96 coverMultiplier = m_coverAreaMultiplier; 97 } 98 void setKeepAndCoverAreaMultipliers(const WebCore::FloatSize& keepMultiplier, const WebCore::FloatSize& coverMultiplier); 99 100 void tileBufferUpdateComplete(); 101 102 WebCore::IntRect mapToContents(const WebCore::IntRect&) const; 103 WebCore::IntRect mapFromContents(const WebCore::IntRect&) const; 104 105 bool hasPendingUpdates() const; 106 107 private: 108 WebPageProxy* page(); 109 WebCore::IntRect webViewVisibleRect(); 110 void updateWebView(const Vector<WebCore::IntRect>& paintedArea); 111 112 void snapshotTaken(UpdateChunk&); 113 114 // DrawingAreaProxy 115 virtual void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*); 116 virtual bool paint(const WebCore::IntRect&, PlatformDrawingContext); 117 virtual void sizeDidChange(); 118 virtual void setPageIsVisible(bool isVisible); 119 120 void didSetSize(const WebCore::IntSize&); 121 void invalidate(const WebCore::IntRect& rect); 122 void adjustVisibleRect(); 123 124 void requestTileUpdate(int tileID, const WebCore::IntRect& dirtyRect); 125 126 PassRefPtr<TiledDrawingAreaTile> createTile(const TiledDrawingAreaTile::Coordinate&); 127 128 void startTileBufferUpdateTimer(); 129 void startTileCreationTimer(); 130 131 void tileBufferUpdateTimerFired(); 132 void tileCreationTimerFired(); 133 134 void updateTileBuffers(); 135 void createTiles(); 136 137 bool resizeEdgeTiles(); 138 void dropTilesOutsideRect(const WebCore::IntRect&); 139 140 PassRefPtr<TiledDrawingAreaTile> tileAt(const TiledDrawingAreaTile::Coordinate&) const; 141 void setTile(const TiledDrawingAreaTile::Coordinate& coordinate, RefPtr<TiledDrawingAreaTile> tile); 142 void removeTile(const TiledDrawingAreaTile::Coordinate& coordinate); 143 void removeAllTiles(); 144 145 WebCore::IntRect contentsRect() const; 146 147 WebCore::IntRect calculateKeepRect(const WebCore::IntRect& visibleRect) const; 148 WebCore::IntRect calculateCoverRect(const WebCore::IntRect& visibleRect) const; 149 150 WebCore::IntRect tileRectForCoordinate(const TiledDrawingAreaTile::Coordinate&) const; 151 TiledDrawingAreaTile::Coordinate tileCoordinateForPoint(const WebCore::IntPoint&) const; 152 double tileDistance(const WebCore::IntRect& viewport, const TiledDrawingAreaTile::Coordinate&); 153 154 private: 155 bool m_isWaitingForDidSetFrameNotification; 156 bool m_isVisible; 157 158 WebCore::IntSize m_viewSize; // Size of the BackingStore as well. 159 WebCore::IntSize m_lastSetViewSize; 160 161 PlatformWebView* m_webView; 162 163 typedef HashMap<TiledDrawingAreaTile::Coordinate, RefPtr<TiledDrawingAreaTile> > TileMap; 164 TileMap m_tiles; 165 166 WTF::HashMap<int, TiledDrawingAreaTile*> m_tilesByID; 167 168 typedef RunLoop::Timer<TiledDrawingAreaProxy> TileTimer; 169 TileTimer m_tileBufferUpdateTimer; 170 TileTimer m_tileCreationTimer; 171 172 WebCore::IntSize m_tileSize; 173 double m_tileCreationDelay; 174 WebCore::FloatSize m_keepAreaMultiplier; 175 WebCore::FloatSize m_coverAreaMultiplier; 176 177 WebCore::IntRect m_previousVisibleRect; 178 float m_contentsScale; 179 180 friend class TiledDrawingAreaTile; 181 }; 182 183 } // namespace WebKit 184 185 #endif // TILED_BACKING_STORE 186 187 #endif // TiledDrawingAreaProxy_h 188
