PicasaAlbumTableReader for Media Galleries API

chrome/browser/media_galleries/fileapi/picasa/picasa_album_table_reader.h

+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_PICASA_PICASA_ALBUM_TABLE_READER_H_
+#define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_PICASA_PICASA_ALBUM_TABLE_READER_H_
+
+#include "base/basictypes.h"
+#include "base/files/file_path.h"
+#include "base/time.h"
+
+namespace picasaimport {
+
+const base::Time::Exploded kPicasaVariantTimeEpoch = {
+  1899, 12, 7, 30,  // Dec 30, 1899 (Saturday)
+  0, 0, 0, 0        // 00:00:00.000
+};
+
+const char kPicasaAlbumTableName[] = "albumdata";
+
+const uint32 kAlbumCategoryUserAlbum = 0;
+const uint32 kAlbumCategoryFolder    = 2;
+const uint32 kAlbumCategoryInvalid   = 0xffff;  // Sentinel value.
+
+const char kAlbumTokenPrefix[] = "]album:";
+
+struct AlbumInfo {
+  AlbumInfo(const std::string& name, const base::Time& timestamp,
+            const std::string& uid);
+
+  ~AlbumInfo();
+
+  std::string name;
+  base::Time timestamp;
+  std::string uid;
+};
+
+struct FolderInfo {
+  FolderInfo(const std::string& name, const base::Time& timestamp,
+             const std::string& uid, const base::FilePath& path);
+
+  ~FolderInfo();
+
+  std::string name;
+  base::Time timestamp;
+  std::string uid;
+  base::FilePath path;
+};
+
+class PicasaAlbumTableReader {
+ public:
+  // |directory_path| is Picasa's db3 directory where the PMP table is stored.
+  explicit PicasaAlbumTableReader(const base::FilePath& directory_path);
+  virtual ~PicasaAlbumTableReader();
+
+  bool Init();
+
+  const std::vector<FolderInfo>& folders() const;
+
+  const std::vector<AlbumInfo>& user_albums() const;
+
+  static base::FilePath PicasaDB3Dir();
+
+ protected:
+  PicasaAlbumTableReader(const std::vector<FolderInfo>& folders,
+                         const std::vector<AlbumInfo>& user_albums);
+
+ private:
+  const base::FilePath directory_path_;
+
+  bool initialized_;
+
+  std::vector<FolderInfo> folders_;
+  std::vector<AlbumInfo> user_albums_;
+
+  DISALLOW_COPY_AND_ASSIGN(PicasaAlbumTableReader);
+};
+
+}  // namespace picasaimport
+
+#endif  // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_PICASA_PICASA_ALBUM_TABLE_READER_H_