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
|
/*
* 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 TiledDrawingArea_h
#define TiledDrawingArea_h
#if USE(TILED_BACKING_STORE)
#include "DrawingArea.h"
#include "TiledBackingStoreClient.h"
#include "TiledBackingStoreRemoteTile.h"
#include <WebCore/IntRect.h>
namespace WebKit {
class TiledDrawingArea : public DrawingArea, public WebCore::TiledBackingStoreClient, public TiledBackingStoreRemoteTileClient {
public:
explicit TiledDrawingArea(WebPage*);
virtual ~TiledDrawingArea();
virtual void setNeedsDisplay(const WebCore::IntRect&);
virtual void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollDelta);
#if USE(ACCELERATED_COMPOSITING)
virtual void attachCompositingContext() { }
virtual void detachCompositingContext() { }
virtual void setRootCompositingLayer(WebCore::GraphicsLayer*) { }
virtual void scheduleCompositingLayerSync() { }
virtual void didReceiveLayerTreeHostMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*);
#endif
private:
// CoreIPC message handlers.
virtual void setSize(const WebCore::IntSize& viewSize);
virtual void setVisibleContentRectAndScale(const WebCore::IntRect&, float);
virtual void setVisibleContentRectTrajectoryVector(const WebCore::FloatPoint&);
virtual void renderNextFrame();
virtual void suspendPainting();
virtual void resumePainting();
// TiledBackingStoreClient
virtual void tiledBackingStorePaintBegin();
virtual void tiledBackingStorePaint(WebCore::GraphicsContext*, const WebCore::IntRect& contentRect);
virtual void tiledBackingStorePaintEnd(const Vector<WebCore::IntRect>& paintedArea);
virtual bool tiledBackingStoreUpdatesAllowed() const;
virtual WebCore::IntRect tiledBackingStoreContentsRect();
virtual WebCore::IntRect tiledBackingStoreVisibleRect();
virtual WebCore::Color tiledBackingStoreBackgroundColor() const;
// TiledBackingStoreRemoteTileClient
virtual void createTile(int tileID, const UpdateInfo&);
virtual void updateTile(int tileID, const UpdateInfo&);
virtual void removeTile(int tileID);
bool m_suspended;
bool m_isWaitingForUIProcess;
bool m_didSendTileUpdate;
WebCore::IntRect m_visibleContentRect;
OwnPtr<WebCore::TiledBackingStore> m_mainBackingStore;
OwnPtr<WebCore::TiledBackingStore> m_previousBackingStore;
};
} // namespace WebKit
#endif // USE(TILED_BACKING_STORE)
#endif // TiledDrawingArea_h
|
