1 /*
2  * Copyright (C) 2009 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. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef GraphicsLayerClient_h
27 #define GraphicsLayerClient_h
28 
29 #if USE(ACCELERATED_COMPOSITING)
30 
31 namespace WebCore {
32 
33 class GraphicsContext;
34 class GraphicsLayer;
35 class IntPoint;
36 class IntRect;
37 class FloatPoint;
38 
39 enum GraphicsLayerPaintingPhase {
40     GraphicsLayerPaintBackground = (1 << 0),
41     GraphicsLayerPaintForeground = (1 << 1),
42     GraphicsLayerPaintMask = (1 << 2),
43     GraphicsLayerPaintAll = (GraphicsLayerPaintBackground | GraphicsLayerPaintForeground | GraphicsLayerPaintMask)
44 };
45 
46 enum AnimatedPropertyID {
47     AnimatedPropertyInvalid,
48     AnimatedPropertyWebkitTransform,
49     AnimatedPropertyOpacity,
50     AnimatedPropertyBackgroundColor
51 };
52 
53 class GraphicsLayerClient {
54 public:
~GraphicsLayerClient()55     virtual ~GraphicsLayerClient() {}
56 
57     // Callback for when hardware-accelerated animation started.
58     virtual void notifyAnimationStarted(const GraphicsLayer*, double time) = 0;
59 
60     // Notification that a layer property changed that requires a subsequent call to syncCompositingState()
61     // to appear on the screen.
62     virtual void notifySyncRequired(const GraphicsLayer*) = 0;
63 
64     virtual void paintContents(const GraphicsLayer*, GraphicsContext&, GraphicsLayerPaintingPhase, const IntRect& inClip) = 0;
65 
66     virtual bool showDebugBorders() const = 0;
67     virtual bool showRepaintCounter() const = 0;
68 };
69 
70 } // namespace WebCore
71 
72 #endif // USE(ACCELERATED_COMPOSITING)
73 
74 #endif // GraphicsLayerClient_h
75