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1 /* | 1 /* |
2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * | 10 * |
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25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 */ | 27 */ |
28 | 28 |
29 #ifndef PageOverlay_h | 29 #ifndef PageOverlay_h |
30 #define PageOverlay_h | 30 #define PageOverlay_h |
31 | 31 |
32 #include "platform/graphics/GraphicsLayer.h" | 32 #include "platform/graphics/GraphicsLayer.h" |
33 #include "platform/graphics/GraphicsLayerClient.h" | 33 #include "platform/graphics/GraphicsLayerClient.h" |
34 #include "platform/graphics/paint/DisplayItemClient.h" | 34 #include "platform/graphics/paint/DisplayItemClient.h" |
35 #include "wtf/FastAllocBase.h" | |
36 #include "wtf/OwnPtr.h" | 35 #include "wtf/OwnPtr.h" |
37 #include "wtf/PassOwnPtr.h" | 36 #include "wtf/PassOwnPtr.h" |
38 #include "wtf/text/WTFString.h" | 37 #include "wtf/text/WTFString.h" |
39 | 38 |
40 namespace blink { | 39 namespace blink { |
41 | 40 |
42 class GraphicsContext; | 41 class GraphicsContext; |
43 class WebPageOverlay; | 42 class WebPageOverlay; |
44 class WebViewImpl; | 43 class WebViewImpl; |
45 class WebGraphicsContext; | 44 class WebGraphicsContext; |
46 | 45 |
47 // Manages a layer that is overlaid on a WebView's content. | 46 // Manages a layer that is overlaid on a WebView's content. |
48 // Clients can paint by implementing WebPageOverlay. | 47 // Clients can paint by implementing WebPageOverlay. |
49 // | 48 // |
50 // With Slimming Paint, internal clients can extract a GraphicsContext to add | 49 // With Slimming Paint, internal clients can extract a GraphicsContext to add |
51 // to the DisplayItemList owned by the GraphicsLayer | 50 // to the DisplayItemList owned by the GraphicsLayer |
52 class PageOverlay : public GraphicsLayerClient { | 51 class PageOverlay : public GraphicsLayerClient { |
53 WTF_MAKE_FAST_ALLOCATED(PageOverlay); | |
54 public: | 52 public: |
55 class Delegate : public GarbageCollectedFinalized<Delegate> { | 53 class Delegate : public GarbageCollectedFinalized<Delegate> { |
56 public: | 54 public: |
57 DEFINE_INLINE_VIRTUAL_TRACE() { } | 55 DEFINE_INLINE_VIRTUAL_TRACE() { } |
58 | 56 |
59 // Paints page overlay contents. | 57 // Paints page overlay contents. |
60 virtual void paintPageOverlay(WebGraphicsContext*, const WebSize& webVie
wSize) = 0; | 58 virtual void paintPageOverlay(WebGraphicsContext*, const WebSize& webVie
wSize) = 0; |
61 virtual ~Delegate() { } | 59 virtual ~Delegate() { } |
62 }; | 60 }; |
63 | 61 |
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79 PageOverlay(WebViewImpl*, PageOverlay::Delegate*); | 77 PageOverlay(WebViewImpl*, PageOverlay::Delegate*); |
80 | 78 |
81 WebViewImpl* m_viewImpl; | 79 WebViewImpl* m_viewImpl; |
82 Persistent<PageOverlay::Delegate> m_delegate; | 80 Persistent<PageOverlay::Delegate> m_delegate; |
83 OwnPtr<GraphicsLayer> m_layer; | 81 OwnPtr<GraphicsLayer> m_layer; |
84 }; | 82 }; |
85 | 83 |
86 } // namespace blink | 84 } // namespace blink |
87 | 85 |
88 #endif // PageOverlay_h | 86 #endif // PageOverlay_h |
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