list_changes_task.h revision 6e8cce623b6e4fe0c9e4af605d675dd9d0338c38 
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_SYNC_FILE_SYSTEM_DRIVE_BACKEND_LIST_CHANGES_TASK_H_
6#define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_LIST_CHANGES_TASK_H_
7
8#include "base/memory/scoped_ptr.h"
9#include "base/memory/scoped_vector.h"
10#include "base/memory/weak_ptr.h"
11#include "chrome/browser/sync_file_system/drive_backend/sync_task.h"
12#include "google_apis/drive/gdata_errorcode.h"
13
14namespace drive {
15class DriveServiceInterface;
16}
17
18namespace google_apis {
19class ChangeList;
20class ChangeResource;
21}
22
23namespace sync_file_system {
24namespace drive_backend {
25
26class MetadataDatabase;
27class SyncEngineContext;
28
29class ListChangesTask : public SyncTask {
30 public:
31  explicit ListChangesTask(SyncEngineContext* sync_context);
32  virtual ~ListChangesTask();
33
34  virtual void RunPreflight(scoped_ptr<SyncTaskToken> token) OVERRIDE;
35
36 private:
37  void StartListing(scoped_ptr<SyncTaskToken> token);
38  void DidListChanges(scoped_ptr<SyncTaskToken> token,
39                      google_apis::GDataErrorCode error,
40                      scoped_ptr<google_apis::ChangeList> change_list);
41  void CheckInChangeList(int64 largest_change_id,
42                         scoped_ptr<SyncTaskToken> token);
43  void DidCheckInChangeList(scoped_ptr<SyncTaskToken> token,
44                            SyncStatusCode status);
45
46  bool IsContextReady();
47  MetadataDatabase* metadata_database();
48  drive::DriveServiceInterface* drive_service();
49
50  SyncEngineContext* sync_context_;
51  ScopedVector<google_apis::ChangeResource> change_list_;
52
53  std::vector<std::string> file_ids_;
54
55  base::WeakPtrFactory<ListChangesTask> weak_ptr_factory_;
56
57  DISALLOW_COPY_AND_ASSIGN(ListChangesTask);
58};
59
60}  // namespace drive_backend
61}  // namespace sync_file_system
62
63#endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_LIST_CHANGES_TASK_H_
64