1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
/*
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TiledDrawingAreaProxy_h
#define TiledDrawingAreaProxy_h
#if ENABLE(TILED_BACKING_STORE)
#include "DrawingAreaProxy.h"
#include <WebCore/GraphicsContext.h>
#include <WebCore/IntRect.h>
#include <wtf/HashSet.h>
#include "RunLoop.h"
#include "TiledDrawingAreaTile.h"
#if PLATFORM(MAC)
#include <wtf/RetainPtr.h>
#ifdef __OBJC__
@class WKView;
#else
class WKView;
#endif
#elif PLATFORM(QT)
class QGraphicsWKView;
#include <QImage>
#endif
namespace WebKit {
class UpdateChunk;
class WebPageProxy;
#if PLATFORM(MAC)
typedef WKView PlatformWebView;
#elif PLATFORM(WIN)
class WebView;
typedef WebView PlatformWebView;
#elif PLATFORM(QT)
typedef QGraphicsWKView PlatformWebView;
#endif
class TiledDrawingAreaProxy : public DrawingAreaProxy {
public:
static PassOwnPtr<TiledDrawingAreaProxy> create(PlatformWebView* webView, WebPageProxy*);
TiledDrawingAreaProxy(PlatformWebView*, WebPageProxy*);
virtual ~TiledDrawingAreaProxy();
float contentsScale() const { return m_contentsScale; }
void setContentsScale(float);
void waitUntilUpdatesComplete();
void takeSnapshot(const WebCore::IntSize& size, const WebCore::IntRect& contentsRect);
#if USE(ACCELERATED_COMPOSITING)
virtual void attachCompositingContext(uint32_t /* contextID */) { }
virtual void detachCompositingContext() { }
#endif
void paint(WebCore::GraphicsContext*, const WebCore::IntRect&);
WebCore::IntSize tileSize() { return m_tileSize; }
void setTileSize(const WebCore::IntSize&);
double tileCreationDelay() const { return m_tileCreationDelay; }
void setTileCreationDelay(double delay);
// Tiled are dropped outside the keep area, and created for cover area. The values a relative to the viewport size.
void getKeepAndCoverAreaMultipliers(WebCore::FloatSize& keepMultiplier, WebCore::FloatSize& coverMultiplier)
{
keepMultiplier = m_keepAreaMultiplier;
coverMultiplier = m_coverAreaMultiplier;
}
void setKeepAndCoverAreaMultipliers(const WebCore::FloatSize& keepMultiplier, const WebCore::FloatSize& coverMultiplier);
void tileBufferUpdateComplete();
WebCore::IntRect mapToContents(const WebCore::IntRect&) const;
WebCore::IntRect mapFromContents(const WebCore::IntRect&) const;
bool hasPendingUpdates() const;
private:
WebPageProxy* page();
WebCore::IntRect webViewVisibleRect();
void updateWebView(const Vector<WebCore::IntRect>& paintedArea);
void snapshotTaken(UpdateChunk&);
// DrawingAreaProxy
virtual void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*);
virtual bool paint(const WebCore::IntRect&, PlatformDrawingContext);
virtual void sizeDidChange();
virtual void setPageIsVisible(bool isVisible);
void didSetSize(const WebCore::IntSize&);
void invalidate(const WebCore::IntRect& rect);
void adjustVisibleRect();
void requestTileUpdate(int tileID, const WebCore::IntRect& dirtyRect);
PassRefPtr<TiledDrawingAreaTile> createTile(const TiledDrawingAreaTile::Coordinate&);
void startTileBufferUpdateTimer();
void startTileCreationTimer();
void tileBufferUpdateTimerFired();
void tileCreationTimerFired();
void updateTileBuffers();
void createTiles();
bool resizeEdgeTiles();
void dropTilesOutsideRect(const WebCore::IntRect&);
PassRefPtr<TiledDrawingAreaTile> tileAt(const TiledDrawingAreaTile::Coordinate&) const;
void setTile(const TiledDrawingAreaTile::Coordinate& coordinate, RefPtr<TiledDrawingAreaTile> tile);
void removeTile(const TiledDrawingAreaTile::Coordinate& coordinate);
void removeAllTiles();
WebCore::IntRect contentsRect() const;
WebCore::IntRect calculateKeepRect(const WebCore::IntRect& visibleRect) const;
WebCore::IntRect calculateCoverRect(const WebCore::IntRect& visibleRect) const;
WebCore::IntRect tileRectForCoordinate(const TiledDrawingAreaTile::Coordinate&) const;
TiledDrawingAreaTile::Coordinate tileCoordinateForPoint(const WebCore::IntPoint&) const;
double tileDistance(const WebCore::IntRect& viewport, const TiledDrawingAreaTile::Coordinate&);
private:
bool m_isWaitingForDidSetFrameNotification;
bool m_isVisible;
WebCore::IntSize m_viewSize; // Size of the BackingStore as well.
WebCore::IntSize m_lastSetViewSize;
PlatformWebView* m_webView;
typedef HashMap<TiledDrawingAreaTile::Coordinate, RefPtr<TiledDrawingAreaTile> > TileMap;
TileMap m_tiles;
WTF::HashMap<int, TiledDrawingAreaTile*> m_tilesByID;
typedef RunLoop::Timer<TiledDrawingAreaProxy> TileTimer;
TileTimer m_tileBufferUpdateTimer;
TileTimer m_tileCreationTimer;
WebCore::IntSize m_tileSize;
double m_tileCreationDelay;
WebCore::FloatSize m_keepAreaMultiplier;
WebCore::FloatSize m_coverAreaMultiplier;
WebCore::IntRect m_previousVisibleRect;
float m_contentsScale;
friend class TiledDrawingAreaTile;
};
} // namespace WebKit
#endif // TILED_BACKING_STORE
#endif // TiledDrawingAreaProxy_h
|
