chrome/browser/chromeos/file_system_provider/observer.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_OBSERVER_H_
   6 #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OBSERVER_H_
   7
   8 #include <string>
   9
  10 #include "base/files/file.h"
  11
  12 namespace chromeos {
  13 namespace file_system_provider {
  14
  15 class ProvidedFileSystemInfo;
  16
  17 // Context for mounting. Whether happened due to user interaction or after
  18 // a reboot, when restoring.
  19 enum MountContext { MOUNT_CONTEXT_USER, MOUNT_CONTEXT_RESTORE };
  20
  21 // Observes file_system_provider::Service for mounting and unmounting events.
  22 class Observer {
  23  public:
  24   virtual ~Observer() {}
  25
  26   // Called when a file system mounting has been invoked. For success, the
  27   // |error| argument is set to FILE_OK. Otherwise, |error| contains a specific
  28   // error code.
  29   virtual void OnProvidedFileSystemMount(
  30       const ProvidedFileSystemInfo& file_system_info,
  31       MountContext context,
  32       base::File::Error error) = 0;
  33
  34   // Called when a file system unmounting has been invoked. For success, the
  35   // |error| argument is set to FILE_OK. Otherwise, |error| contains a specific
  36   // error code.
  37   virtual void OnProvidedFileSystemUnmount(
  38       const ProvidedFileSystemInfo& file_system_info,
  39       base::File::Error error) = 0;
  40 };
  41
  42 }  // namespace file_system_provider
  43 }  // namespace chromeos
  44
  45 #endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OBSERVER_H_