src/chrome/browser/chromeos/drive/file_system/touch_operation.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_CHROMEOS_DRIVE_FILE_SYSTEM_TOUCH_OPERATION_H_
   6 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_TOUCH_OPERATION_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "chrome/browser/chromeos/drive/file_errors.h"
  13 #include "chrome/browser/google_apis/gdata_errorcode.h"
  14
  15 namespace base {
  16 class FilePath;
  17 class SequencedTaskRunner;
  18 class Time;
  19 }  // namespace base
  20
  21 namespace google_apis {
  22 class ResourceEntry;
  23 }  // namespace google_apis
  24
  25 namespace drive {
  26 namespace internal {
  27 class ResourceMetadata;
  28 }  // namespace internal
  29
  30 class JobScheduler;
  31 class ResourceEntry;
  32
  33 namespace file_system {
  34
  35 class OperationObserver;
  36
  37 class TouchOperation {
  38  public:
  39   TouchOperation(base::SequencedTaskRunner* blocking_task_runner,
  40                  OperationObserver* observer,
  41                  JobScheduler* scheduler,
  42                  internal::ResourceMetadata* metadata);
  43   ~TouchOperation();
  44
  45   // Touches the file by updating last access time and last modified time.
  46   // Upon completion, invokes |callback|.
  47   // |last_access_time|, |last_modified_time| and |callback| must not be null.
  48   void TouchFile(const base::FilePath& file_path,
  49                  const base::Time& last_access_time,
  50                  const base::Time& last_modified_time,
  51                  const FileOperationCallback& callback);
  52
  53  private:
  54   // Part of TouchFile(). Runs after GetResourceEntry is completed.
  55   void TouchFileAfterGetResourceEntry(const base::Time& last_access_time,
  56                                       const base::Time& last_modified_time,
  57                                       const FileOperationCallback& callback,
  58                                       std::string* local_id,
  59                                       ResourceEntry* entry,
  60                                       FileError error);
  61
  62   // Part of TouchFile(). Runs after the server side update for last access time
  63   // and last modified time is completed.
  64   void TouchFileAfterServerTimeStampUpdated(
  65       const std::string& local_id,
  66       const FileOperationCallback& callback,
  67       google_apis::GDataErrorCode gdata_error,
  68       scoped_ptr<google_apis::ResourceEntry> resource_entry);
  69
  70   // Part of TouchFile(). Runs after refreshing the local metadata is completed.
  71   void TouchFileAfterRefreshMetadata(const base::FilePath* file_path,
  72                                      const FileOperationCallback& callback,
  73                                      FileError error);
  74
  75   scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
  76   OperationObserver* observer_;
  77   JobScheduler* scheduler_;
  78   internal::ResourceMetadata* metadata_;
  79
  80   // Note: This should remain the last member so it'll be destroyed and
  81   // invalidate the weak pointers before any other members are destroyed.
  82   base::WeakPtrFactory<TouchOperation> weak_ptr_factory_;
  83   DISALLOW_COPY_AND_ASSIGN(TouchOperation);
  84 };
  85
  86 }  // namespace file_system
  87 }  // namespace drive
  88
  89 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_TOUCH_OPERATION_H_