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      1 // Copyright 2013 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_MEDIA_GALLERIES_IMPORTED_MEDIA_GALLERY_REGISTRY_H_
      6 #define CHROME_BROWSER_MEDIA_GALLERIES_IMPORTED_MEDIA_GALLERY_REGISTRY_H_
      7 
      8 #include <set>
      9 #include <string>
     10 
     11 #include "base/basictypes.h"
     12 #include "base/files/file_path.h"
     13 #include "base/lazy_instance.h"
     14 #include "base/memory/scoped_ptr.h"
     15 
     16 namespace iphoto {
     17 class IPhotoDataProvider;
     18 class IPhotoDataProviderTest;
     19 }
     20 
     21 namespace itunes {
     22 class ITunesDataProvider;
     23 class ITunesDataProviderTest;
     24 }
     25 
     26 namespace picasa {
     27 class PicasaDataProvider;
     28 class PicasaDataProviderTest;
     29 }
     30 
     31 // This class lives on the MediaTaskRunner thread. It has some static
     32 // methods which are called on the UI thread.
     33 //
     34 // MediaTaskRunner is not guaranteed to be one thread, but it is guaranteed
     35 // to be a series of sequential calls. See SequencedTaskRunner for details.
     36 class ImportedMediaGalleryRegistry {
     37  public:
     38   static ImportedMediaGalleryRegistry* GetInstance();
     39 
     40   void Initialize();
     41 
     42   // Should be called on the UI thread only.
     43   bool RegisterPicasaFilesystemOnUIThread(const std::string& fs_name,
     44                                           const base::FilePath& database_path);
     45 
     46   bool RegisterITunesFilesystemOnUIThread(
     47       const std::string& fs_name,
     48       const base::FilePath& xml_library_path);
     49 
     50   bool RegisterIPhotoFilesystemOnUIThread(
     51       const std::string& fs_name,
     52       const base::FilePath& xml_library_path);
     53 
     54   bool RevokeImportedFilesystemOnUIThread(const std::string& fs_name);
     55 
     56   // Path where all virtual file systems are "mounted."
     57   base::FilePath ImportedRoot();
     58 
     59   // Should be called on the MediaTaskRunner thread only.
     60 #if defined(OS_WIN) || defined(OS_MACOSX)
     61   static picasa::PicasaDataProvider* PicasaDataProvider();
     62   static itunes::ITunesDataProvider* ITunesDataProvider();
     63 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
     64 
     65 #if defined(OS_MACOSX)
     66   static iphoto::IPhotoDataProvider* IPhotoDataProvider();
     67 #endif  // defined(OS_MACOSX)
     68 
     69  private:
     70   friend struct base::DefaultLazyInstanceTraits<ImportedMediaGalleryRegistry>;
     71   friend class iphoto::IPhotoDataProviderTest;
     72   friend class itunes::ITunesDataProviderTest;
     73   friend class picasa::PicasaDataProviderTest;
     74 
     75   ImportedMediaGalleryRegistry();
     76   virtual ~ImportedMediaGalleryRegistry();
     77 
     78 #if defined(OS_WIN) || defined(OS_MACOSX)
     79   void RegisterPicasaFileSystem(const base::FilePath& database_path);
     80   void RevokePicasaFileSystem();
     81 
     82   void RegisterITunesFileSystem(const base::FilePath& xml_library_path);
     83   void RevokeITunesFileSystem();
     84 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
     85 
     86 #if defined(OS_MACOSX)
     87   void RegisterIPhotoFileSystem(const base::FilePath& xml_library_path);
     88   void RevokeIPhotoFileSystem();
     89 #endif  // defined(OS_MACOSX)
     90 
     91   base::FilePath imported_root_;
     92 
     93 #if defined(OS_WIN) || defined(OS_MACOSX)
     94   // The data providers are only set or accessed on the task runner thread.
     95   scoped_ptr<picasa::PicasaDataProvider> picasa_data_provider_;
     96   scoped_ptr<itunes::ITunesDataProvider> itunes_data_provider_;
     97 
     98   // The remaining members are only accessed on the IO thread.
     99   std::set<std::string> picasa_fs_names_;
    100   std::set<std::string> itunes_fs_names_;
    101 
    102 #ifndef NDEBUG
    103   base::FilePath picasa_database_path_;
    104   base::FilePath itunes_xml_library_path_;
    105 #endif
    106 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
    107 
    108 #if defined(OS_MACOSX)
    109   scoped_ptr<iphoto::IPhotoDataProvider> iphoto_data_provider_;
    110 
    111   std::set<std::string> iphoto_fs_names_;
    112 
    113 #ifndef NDEBUG
    114   base::FilePath iphoto_xml_library_path_;
    115 #endif
    116 #endif  // defined(OS_MACOSX)
    117 
    118   DISALLOW_COPY_AND_ASSIGN(ImportedMediaGalleryRegistry);
    119 };
    120 
    121 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_IMPORTED_MEDIA_GALLERY_REGISTRY_H_
    122