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 // Manages all the gallery file watchers for the associated profile. This class 6 // lives on the file thread. This class is instantiated per profile. This 7 // is temporary and will be moved to a permanent, public place in the near 8 // future. Please refer to crbug.com/166950 for more details. 9 10 #ifndef CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_PRIVATE_GALLERY_WATCH_MANAGER_H_ 11 #define CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_PRIVATE_GALLERY_WATCH_MANAGER_H_ 12 13 #include <map> 14 #include <string> 15 16 #include "base/files/file_path.h" 17 #include "base/memory/weak_ptr.h" 18 #include "chrome/browser/media_galleries/media_galleries_preferences.h" 19 20 namespace extensions { 21 22 class MediaGalleriesPrivateEventRouter; 23 24 class GalleryWatchManager { 25 public: 26 // Returns the GalleryWatchManager for |profile_id|, creating it if it is not 27 // yet created. 28 static GalleryWatchManager* GetForProfile(void* profile_id); 29 30 // Returns true if an GalleryWatchManager already exists for the specified 31 // |profile_id|. 32 static bool HasForProfile(void* profile_id); 33 34 // Notifies about the profile shutdown event. 35 static void OnProfileShutdown(void* profile_id); 36 37 // Sets up a gallery watch for the extension specified by the |extension_id|. 38 // |profile_id| specifies the extension profile identifier. 39 // |gallery_id| specifies the gallery identifier. 40 // |watch_path| specifies the absolute gallery path. 41 // Returns true, if the watch setup operation was successful. 42 static bool SetupGalleryWatch( 43 void* profile_id, 44 MediaGalleryPrefId gallery_id, 45 const base::FilePath& watch_path, 46 const std::string& extension_id, 47 base::WeakPtr<MediaGalleriesPrivateEventRouter> event_router); 48 49 // Cancels the gallery watch for the extension specified by the 50 // |extension_id|. |profile_id| specifies the extension profile identifier. 51 // |watch_path| specifies the absolute gallery path. 52 static void RemoveGalleryWatch(void* profile_id, 53 const base::FilePath& watch_path, 54 const std::string& extension_id); 55 56 // Notifies about the extension unloaded/uninstalled event. 57 static void OnExtensionUnloaded(void* profile_id, 58 const std::string& extension_id); 59 60 private: 61 class GalleryFilePathWatcher; 62 typedef std::map<base::FilePath, GalleryFilePathWatcher*> WatcherMap; 63 64 // Use GetForProfile(). 65 GalleryWatchManager(); 66 ~GalleryWatchManager(); 67 68 // Initiates a gallery watch operation for the extension specified by 69 // the |extension_id|. |gallery_id| specifies the gallery identifier and 70 // |watch_path| specifies the absolute path of the gallery. Returns true, 71 // if the watch was set successfully. 72 bool StartGalleryWatch( 73 MediaGalleryPrefId gallery_id, 74 const base::FilePath& watch_path, 75 const std::string& extension_id, 76 base::WeakPtr<MediaGalleriesPrivateEventRouter> event_router); 77 78 // Cancels the gallery watch operation for the extension specified by the 79 // |extension_id|. |watch_path| specifies the absolute path of the gallery. 80 void StopGalleryWatch(const base::FilePath& watch_path, 81 const std::string& extension_id); 82 83 // Handles the extension unloaded/uninstalled event. 84 void HandleExtensionUnloadedEvent(const std::string& extension_id); 85 86 // Deletes the gallery watchers. 87 void DeleteAllWatchers(); 88 89 // Removes the GalleryFilePathWatcher entry associated with the given 90 // |watch_path|. 91 void RemoveGalleryFilePathWatcherEntry(const base::FilePath& watch_path); 92 93 // Map to manage the gallery file path watchers. 94 // Key: Gallery watch path. 95 // Value: GalleryFilePathWatcher*. 96 WatcherMap gallery_watchers_; 97 98 DISALLOW_COPY_AND_ASSIGN(GalleryWatchManager); 99 }; 100 101 } // namespace extensions 102 103 #endif // CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_PRIVATE_GALLERY_WATCH_MANAGER_H_ 104
