chrome/browser/chromeos/drive/file_system_observer.h

   1 // Copyright (c) 2012 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_DRIVE_FILE_SYSTEM_OBSERVER_H_
   6 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_OBSERVER_H_
   7
   8 #include "chrome/browser/chromeos/drive/file_errors.h"
   9 #include "chrome/browser/chromeos/drive/file_system/operation_delegate.h"
  10
  11 namespace base {
  12 class FilePath;
  13 }
  14
  15 namespace drive {
  16
  17 class FileChange;
  18
  19 // Interface for classes that need to observe events from classes implementing
  20 // FileSystemInterface.
  21 // All events are notified on UI thread.
  22 class FileSystemObserver {
  23  public:
  24   // Triggered when a content of a directory has been changed.
  25   // |directory_path| is a virtual directory path (/drive/...) representing
  26   // changed directory.
  27   virtual void OnDirectoryChanged(const base::FilePath& directory_path) {}
  28   virtual void OnFileChanged(const FileChange& file_change) {}
  29
  30   // Triggared when a specific drive error occurred.
  31   // |type| is a type of the error. |file_name| is a virtual path of the entry.
  32   virtual void OnDriveSyncError(file_system::DriveSyncErrorType type,
  33                                 const base::FilePath& file_path) {}
  34
  35  protected:
  36   virtual ~FileSystemObserver() {}
  37 };
  38
  39 }  // namespace drive
  40
  41 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_OBSERVER_H_