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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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 // MediaFileSystemRegistry registers pictures directories and media devices as | 5 // MediaFileSystemRegistry registers pictures directories and media devices as |
6 // File API filesystems and keeps track of the path to filesystem ID mappings. | 6 // File API filesystems and keeps track of the path to filesystem ID mappings. |
7 | 7 |
8 #ifndef CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_ | 8 #ifndef CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_ |
9 #define CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_ | 9 #define CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_ |
10 | 10 |
11 #include <map> | 11 #include <map> |
12 #include <string> | 12 #include <string> |
13 #include <utility> | 13 #include <utility> |
14 #include <vector> | 14 #include <vector> |
15 | 15 |
16 #include "base/basictypes.h" | 16 #include "base/basictypes.h" |
17 #include "base/lazy_instance.h" | 17 #include "base/lazy_instance.h" |
18 #include "base/file_path.h" | 18 #include "base/file_path.h" |
19 #include "base/memory/ref_counted.h" | 19 #include "base/memory/ref_counted.h" |
20 #include "base/memory/weak_ptr.h" | 20 #include "base/memory/weak_ptr.h" |
21 #include "base/prefs/public/pref_change_registrar.h" | 21 #include "base/prefs/public/pref_change_registrar.h" |
22 #include "base/system_monitor/system_monitor.h" | 22 #include "base/system_monitor/system_monitor.h" |
23 #include "webkit/fileapi/media/mtp_device_file_system_config.h" | 23 #include "webkit/fileapi/media/mtp_device_file_system_config.h" |
24 | 24 |
| 25 #if defined(SUPPORT_MTP_DEVICE_FILESYSTEM) |
| 26 #include "chrome/browser/media_gallery/mtp_device_delegate_impl.h" |
| 27 #endif |
| 28 |
25 class Profile; | 29 class Profile; |
26 | 30 |
27 namespace content { | 31 namespace content { |
28 class RenderViewHost; | 32 class RenderViewHost; |
29 } | 33 } |
30 | 34 |
31 namespace extensions { | 35 namespace extensions { |
32 class Extension; | 36 class Extension; |
33 } | 37 } |
34 | 38 |
35 namespace fileapi { | 39 namespace fileapi { |
36 class IsolatedContext; | 40 class IsolatedContext; |
37 } | 41 } |
38 | 42 |
39 namespace chrome { | 43 namespace chrome { |
40 | 44 |
41 class ExtensionGalleriesHost; | 45 class ExtensionGalleriesHost; |
42 class MediaGalleriesPreferences; | 46 class MediaGalleriesPreferences; |
43 class ScopedMTPDeviceMapEntry; | |
44 | 47 |
45 struct MediaFileSystemInfo { | 48 struct MediaFileSystemInfo { |
46 MediaFileSystemInfo(const std::string& fs_name, | 49 MediaFileSystemInfo(const std::string& fs_name, |
47 const FilePath& fs_path, | 50 const FilePath& fs_path, |
48 const std::string& filesystem_id); | 51 const std::string& filesystem_id); |
49 MediaFileSystemInfo(); | 52 MediaFileSystemInfo(); |
50 | 53 |
51 std::string name; // JSON string, must not contain slashes. | 54 std::string name; // JSON string, must not contain slashes. |
52 FilePath path; | 55 FilePath path; |
53 std::string fsid; | 56 std::string fsid; |
54 }; | 57 }; |
55 | 58 |
| 59 #if defined(SUPPORT_MTP_DEVICE_FILESYSTEM) |
| 60 // Class to manage MTPDeviceDelegateImpl object for the attached MTP device. |
| 61 // Refcounted to reuse the same MTP device delegate entry across extensions. |
| 62 // This class supports WeakPtr (extends SupportsWeakPtr) to expose itself as |
| 63 // a weak pointer to MediaFileSystemRegistry. |
| 64 class ScopedMTPDeviceMapEntry |
| 65 : public base::RefCounted<ScopedMTPDeviceMapEntry>, |
| 66 public base::SupportsWeakPtr<ScopedMTPDeviceMapEntry> { |
| 67 public: |
| 68 // |no_references_callback| is called when the last ScopedMTPDeviceMapEntry |
| 69 // reference goes away. |
| 70 ScopedMTPDeviceMapEntry(const FilePath::StringType& device_location, |
| 71 const base::Closure& no_references_callback); |
| 72 |
| 73 private: |
| 74 // Friend declaration for ref counted implementation. |
| 75 friend class base::RefCounted<ScopedMTPDeviceMapEntry>; |
| 76 |
| 77 // Private because this class is ref-counted. |
| 78 ~ScopedMTPDeviceMapEntry(); |
| 79 |
| 80 // Store the MTP or PTP device location. |
| 81 const FilePath::StringType device_location_; |
| 82 |
| 83 // Store a raw pointer of MTPDeviceDelegateImpl object. |
| 84 // MTPDeviceDelegateImpl is ref-counted and owned by MTPDeviceMapService. |
| 85 // This class tells MTPDeviceMapService to dispose of it when the last |
| 86 // reference to |this| goes away. |
| 87 MTPDeviceDelegateImpl* delegate_; |
| 88 |
| 89 // A callback to call when the last reference of this object goes away. |
| 90 base::Closure no_references_callback_; |
| 91 |
| 92 DISALLOW_COPY_AND_ASSIGN(ScopedMTPDeviceMapEntry); |
| 93 }; |
| 94 #endif |
| 95 |
56 class MediaFileSystemContext { | 96 class MediaFileSystemContext { |
57 public: | 97 public: |
58 virtual ~MediaFileSystemContext() {} | 98 virtual ~MediaFileSystemContext() {} |
59 | 99 |
60 // Register a media file system (filtered to media files) for |path| and | 100 // Register a media file system (filtered to media files) for |path| and |
61 // return the new file system id. | 101 // return the new file system id. |
62 virtual std::string RegisterFileSystemForMassStorage( | 102 virtual std::string RegisterFileSystemForMassStorage( |
63 const std::string& device_id, const FilePath& path) = 0; | 103 const std::string& device_id, const FilePath& path) = 0; |
64 | 104 |
65 #if defined(SUPPORT_MTP_DEVICE_FILESYSTEM) | 105 #if defined(SUPPORT_MTP_DEVICE_FILESYSTEM) |
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98 // Called on the UI thread. | 138 // Called on the UI thread. |
99 MediaGalleriesPreferences* GetPreferences(Profile* profile); | 139 MediaGalleriesPreferences* GetPreferences(Profile* profile); |
100 | 140 |
101 // base::SystemMonitor::DevicesChangedObserver implementation. | 141 // base::SystemMonitor::DevicesChangedObserver implementation. |
102 virtual void OnRemovableStorageAttached( | 142 virtual void OnRemovableStorageAttached( |
103 const std::string& id, | 143 const std::string& id, |
104 const string16& name, | 144 const string16& name, |
105 const FilePath::StringType& location) OVERRIDE; | 145 const FilePath::StringType& location) OVERRIDE; |
106 virtual void OnRemovableStorageDetached(const std::string& id) OVERRIDE; | 146 virtual void OnRemovableStorageDetached(const std::string& id) OVERRIDE; |
107 | 147 |
| 148 size_t GetExtensionHostCountForTests() const; |
| 149 |
108 private: | 150 private: |
| 151 friend class TestMediaFileSystemContext; |
109 friend struct base::DefaultLazyInstanceTraits<MediaFileSystemRegistry>; | 152 friend struct base::DefaultLazyInstanceTraits<MediaFileSystemRegistry>; |
110 class MediaFileSystemContextImpl; | 153 class MediaFileSystemContextImpl; |
111 | 154 |
112 // Map an extension to the ExtensionGalleriesHost. | 155 // Map an extension to the ExtensionGalleriesHost. |
113 typedef std::map<std::string /*extension_id*/, | 156 typedef std::map<std::string /*extension_id*/, |
114 scoped_refptr<ExtensionGalleriesHost> > ExtensionHostMap; | 157 scoped_refptr<ExtensionGalleriesHost> > ExtensionHostMap; |
115 // Map a profile and extension to the ExtensionGalleriesHost. | 158 // Map a profile and extension to the ExtensionGalleriesHost. |
116 typedef std::map<Profile*, ExtensionHostMap> ExtensionGalleriesHostMap; | 159 typedef std::map<Profile*, ExtensionHostMap> ExtensionGalleriesHostMap; |
117 // Map a profile to a PrefChangeRegistrar. | 160 // Map a profile to a PrefChangeRegistrar. |
118 typedef std::map<Profile*, PrefChangeRegistrar*> PrefChangeRegistrarMap; | 161 typedef std::map<Profile*, PrefChangeRegistrar*> PrefChangeRegistrarMap; |
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157 #endif | 200 #endif |
158 | 201 |
159 scoped_ptr<MediaFileSystemContext> file_system_context_; | 202 scoped_ptr<MediaFileSystemContext> file_system_context_; |
160 | 203 |
161 DISALLOW_COPY_AND_ASSIGN(MediaFileSystemRegistry); | 204 DISALLOW_COPY_AND_ASSIGN(MediaFileSystemRegistry); |
162 }; | 205 }; |
163 | 206 |
164 } // namespace chrome | 207 } // namespace chrome |
165 | 208 |
166 #endif // CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_ | 209 #endif // CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_ |
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