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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef OffscreenCanvasPlaceholder_h | 5 #ifndef OffscreenCanvasPlaceholder_h |
6 #define OffscreenCanvasPlaceholder_h | 6 #define OffscreenCanvasPlaceholder_h |
7 | 7 |
8 #include "platform/PlatformExport.h" | 8 #include "platform/PlatformExport.h" |
9 #include "wtf/RefPtr.h" | 9 #include "wtf/RefPtr.h" |
10 #include "wtf/WeakPtr.h" | 10 #include "wtf/WeakPtr.h" |
11 #include <memory> | 11 #include <memory> |
12 | 12 |
13 namespace blink { | 13 namespace blink { |
14 | 14 |
15 class Image; | 15 class Image; |
| 16 class IntSize; |
16 class OffscreenCanvasFrameDispatcher; | 17 class OffscreenCanvasFrameDispatcher; |
17 class WebTaskRunner; | 18 class WebTaskRunner; |
18 | 19 |
19 class PLATFORM_EXPORT OffscreenCanvasPlaceholder { | 20 class PLATFORM_EXPORT OffscreenCanvasPlaceholder { |
20 public: | 21 public: |
21 ~OffscreenCanvasPlaceholder(); | 22 ~OffscreenCanvasPlaceholder(); |
22 | 23 |
23 void setPlaceholderFrame(RefPtr<Image>, | 24 void setPlaceholderFrame(RefPtr<Image>, |
24 WeakPtr<OffscreenCanvasFrameDispatcher>, | 25 WeakPtr<OffscreenCanvasFrameDispatcher>, |
25 std::unique_ptr<WebTaskRunner>, | 26 std::unique_ptr<WebTaskRunner>, |
26 unsigned resourceId); | 27 unsigned resourceId); |
27 void releasePlaceholderFrame(); | 28 void releasePlaceholderFrame(); |
28 | 29 |
| 30 virtual void setSize(const IntSize&) = 0; |
| 31 |
29 static OffscreenCanvasPlaceholder* getPlaceholderById(unsigned placeholderId); | 32 static OffscreenCanvasPlaceholder* getPlaceholderById(unsigned placeholderId); |
30 | 33 |
31 void registerPlaceholder(unsigned placeholderId); | 34 void registerPlaceholder(unsigned placeholderId); |
32 void unregisterPlaceholder(); | 35 void unregisterPlaceholder(); |
33 const RefPtr<Image>& placeholderFrame() const { return m_placeholderFrame; } | 36 const RefPtr<Image>& placeholderFrame() const { return m_placeholderFrame; } |
34 | 37 |
35 private: | 38 private: |
36 bool isPlaceholderRegistered() const { | 39 bool isPlaceholderRegistered() const { |
37 return m_placeholderId != kNoPlaceholderId; | 40 return m_placeholderId != kNoPlaceholderId; |
38 } | 41 } |
39 | 42 |
40 RefPtr<Image> m_placeholderFrame; | 43 RefPtr<Image> m_placeholderFrame; |
41 WeakPtr<OffscreenCanvasFrameDispatcher> m_frameDispatcher; | 44 WeakPtr<OffscreenCanvasFrameDispatcher> m_frameDispatcher; |
42 std::unique_ptr<WebTaskRunner> m_frameDispatcherTaskRunner; | 45 std::unique_ptr<WebTaskRunner> m_frameDispatcherTaskRunner; |
43 unsigned m_placeholderFrameResourceId = 0; | 46 unsigned m_placeholderFrameResourceId = 0; |
44 | 47 |
45 enum { | 48 enum { |
46 kNoPlaceholderId = -1, | 49 kNoPlaceholderId = -1, |
47 }; | 50 }; |
48 int m_placeholderId = kNoPlaceholderId; | 51 int m_placeholderId = kNoPlaceholderId; |
49 }; | 52 }; |
50 | 53 |
51 } // blink | 54 } // blink |
52 | 55 |
53 #endif | 56 #endif |
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