chrome/browser/chromeos/file_system_provider/registry_interface.h

   1 // Copyright 2014 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_CHROMEOS_FILE_SYSTEM_PROVIDER_REGISTRY_INTERFACE_H_
   6 #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_REGISTRY_INTERFACE_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/files/file_path.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_info.h"
  14 #include "chrome/browser/chromeos/file_system_provider/watcher.h"
  15
  16 namespace chromeos {
  17 namespace file_system_provider {
  18
  19 // Remembers and restores file systems in a persistent storage.
  20 class RegistryInterface {
  21  public:
  22   struct RestoredFileSystem;
  23
  24   // List of file systems together with their watchers to be remounted.
  25   typedef std::vector<RestoredFileSystem> RestoredFileSystems;
  26
  27   // Information about a file system to be restored.
  28   struct RestoredFileSystem {
  29     RestoredFileSystem();
  30     ~RestoredFileSystem();
  31
  32     std::string extension_id;
  33     MountOptions options;
  34     Watchers watchers;
  35   };
  36
  37   virtual ~RegistryInterface();
  38
  39   // Remembers the file system in preferences, in order to remount after a
  40   // reboot.
  41   virtual void RememberFileSystem(
  42       const ProvidedFileSystemInfo& file_system_info,
  43       const Watchers& watchers) = 0;
  44
  45   // Removes the file system from preferences, so it is not remounmted anymore
  46   // after a reboot.
  47   virtual void ForgetFileSystem(const std::string& extension_id,
  48                                 const std::string& file_system_id) = 0;
  49
  50   // Restores from preferences file systems mounted previously by the
  51   // |extension_id| providing extension. The returned list should be used to
  52   // remount them.
  53   virtual scoped_ptr<RestoredFileSystems> RestoreFileSystems(
  54       const std::string& extension_id) = 0;
  55
  56   // Updates a tag for the specified watcher.
  57   virtual void UpdateWatcherTag(const ProvidedFileSystemInfo& file_system_info,
  58                                 const Watcher& watcher) = 0;
  59 };
  60
  61 }  // namespace file_system_provider
  62 }  // namespace chromeos
  63
  64 #endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_REGISTRY_INTERFACE_H_