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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_WALLPAPER_SOURCE_H_ | |
6 #define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_WALLPAPER_SOURCE_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "base/compiler_specific.h" | |
11 #include "base/memory/ref_counted_memory.h" | |
12 #include "base/memory/weak_ptr.h" | |
13 #include "chrome/browser/ui/webui/chrome_url_data_manager.h" | |
14 #include "third_party/skia/include/core/SkBitmap.h" | |
15 | |
16 namespace chromeos { | |
17 namespace options { | |
18 | |
19 // A DataSource for chrome://wallpaper/ URL, provides current user's wallpaper. | |
20 class WallpaperImageSource : public ChromeURLDataManager::DataSource { | |
21 public: | |
22 WallpaperImageSource(); | |
23 | |
24 // ChromeURLDataManager::DataSource implementation. | |
25 virtual void StartDataRequest(const std::string& path, | |
26 bool is_incognito, | |
27 int request_id) OVERRIDE; | |
28 virtual std::string GetMimeType(const std::string&) const OVERRIDE; | |
29 | |
30 private: | |
31 class WallpaperEncodingOperation; | |
32 | |
33 virtual ~WallpaperImageSource(); | |
34 | |
35 // Get wallpaper for request identified by |request_id| in UI thread | |
36 // and pass it to encoding phase. | |
37 void GetCurrentUserWallpaper(int request_id); | |
38 | |
39 // Callback is called when image is obtained from UI thread to | |
40 // encode and send reply to request identified by |request_id|. | |
41 void ImageAcquired(SkBitmap image, int request_id); | |
42 | |
43 // Cancel current image encoding operation. | |
44 void CancelPendingEncodingOperation(); | |
45 | |
46 // Send image stored in |data| as a reply to request | |
47 // identifed by |request_id|. | |
48 void SendCurrentUserWallpaper(int request_id, | |
49 scoped_refptr<base::RefCountedBytes> data); | |
50 | |
51 scoped_refptr<WallpaperEncodingOperation> wallpaper_encoding_op_; | |
52 | |
53 base::WeakPtrFactory<WallpaperImageSource> weak_ptr_factory_; | |
54 | |
55 DISALLOW_COPY_AND_ASSIGN(WallpaperImageSource); | |
56 }; | |
57 | |
58 } // namespace options | |
59 } // namespace chromeos | |
60 | |
61 #endif // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_WALLPAPER_SOURCE_H_ | |
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