chrome/browser/media_galleries/fileapi/iphoto_data_provider.h

   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_FILEAPI_IPHOTO_DATA_PROVIDER_H_
   6 #define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_IPHOTO_DATA_PROVIDER_H_
   7
   8 #include <map>
   9 #include <set>
  10 #include <string>
  11
  12 #include "base/basictypes.h"
  13 #include "base/callback_forward.h"
  14 #include "base/containers/hash_tables.h"
  15 #include "base/files/file_path.h"
  16 #include "base/files/file_path_watcher.h"
  17 #include "base/memory/weak_ptr.h"
  18 #include "chrome/browser/media_galleries/fileapi/iapps_data_provider.h"
  19 #include "chrome/browser/media_galleries/fileapi/safe_iapps_library_parser.h"
  20 #include "chrome/common/media_galleries/iphoto_library.h"
  21
  22 namespace iphoto {
  23
  24 // This class is the holder for iPhoto parsed data. Given a path to the iPhoto
  25 // library XML file it will read it in, parse the data, and provide convenient
  26 // methods to access it.  When the file changes, it will update the data.
  27 // It is not thread safe, but can be run on any thread with IO access.
  28 class IPhotoDataProvider : public iapps::IAppsDataProvider {
  29  public:
  30   explicit IPhotoDataProvider(const base::FilePath& library_path);
  31   ~IPhotoDataProvider() override;
  32
  33   // Parse the library xml file.
  34   void DoParseLibrary(const base::FilePath& library_path,
  35                       const ReadyCallback& ready_callback) override;
  36
  37   virtual std::vector<std::string> GetAlbumNames() const;
  38   virtual std::map<std::string, base::FilePath> GetAlbumContents(
  39       const std::string& album) const;
  40   virtual base::FilePath GetPhotoLocationInAlbum(
  41       const std::string& album,
  42       const std::string& filename) const;
  43
  44   virtual bool HasOriginals(const std::string& album) const;
  45   virtual std::map<std::string, base::FilePath> GetOriginals(
  46       const std::string& album) const;
  47   virtual base::FilePath GetOriginalPhotoLocation(
  48       const std::string& album,
  49       const std::string& filename) const;
  50
  51  private:
  52   typedef base::hash_map<std::string, base::FilePath> FileIndex;
  53   // Map from album name to a map of filename to path.
  54   typedef base::hash_map<std::string, FileIndex> DirIndex;
  55
  56   void OnLibraryParsed(const ReadyCallback& ready_callback,
  57                        bool result,
  58                        const parser::Library& library);
  59
  60   void BuildIndices(const parser::Library& library);
  61
  62   // Index for library data as it is presented in the virtual FS.
  63   DirIndex dir_index_;
  64
  65   // Index for originals data.
  66   DirIndex originals_index_;
  67
  68   scoped_refptr<iapps::SafeIAppsLibraryParser> xml_parser_;
  69
  70   base::WeakPtrFactory<IPhotoDataProvider> weak_factory_;
  71
  72   DISALLOW_COPY_AND_ASSIGN(IPhotoDataProvider);
  73 };
  74
  75 }  // namespace iphoto
  76
  77 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_IPHOTO_DATA_PROVIDER_H_