chrome/browser/sync_file_system/drive_backend_v1/remote_sync_delegate.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_SYNC_FILE_SYSTEM_DRIVE_BACKEND_V1_REMOTE_SYNC_DELEGATE_H_
   6 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_V1_REMOTE_SYNC_DELEGATE_H_
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "chrome/browser/sync_file_system/drive_backend_v1/api_util.h"
  13 #include "chrome/browser/sync_file_system/drive_backend_v1/drive_file_sync_service.h"
  14 #include "chrome/browser/sync_file_system/drive_backend_v1/drive_metadata_store.h"
  15 #include "chrome/browser/sync_file_system/file_change.h"
  16 #include "chrome/browser/sync_file_system/sync_action.h"
  17 #include "chrome/browser/sync_file_system/sync_callbacks.h"
  18 #include "chrome/browser/sync_file_system/sync_file_metadata.h"
  19 #include "chrome/browser/sync_file_system/sync_file_system.pb.h"
  20 #include "webkit/browser/fileapi/file_system_url.h"
  21 #include "webkit/common/blob/scoped_file.h"
  22
  23 namespace sync_file_system {
  24
  25 class DriveMetadataStore;
  26 class RemoteChangeProcessor;
  27
  28 namespace drive_backend {
  29
  30 class APIUtil;
  31
  32 // This class handles RemoteFileSyncService::ProcessRemoteChange for drive
  33 // backend, and its instance represents single ProcessRemoteChange operation.
  34 // The caller is responsible to own the instance, and can cancel operation by
  35 // deleting the instance.
  36 class RemoteSyncDelegate : public base::SupportsWeakPtr<RemoteSyncDelegate> {
  37  public:
  38   typedef RemoteChangeHandler::RemoteChange RemoteChange;
  39
  40   RemoteSyncDelegate(
  41       DriveFileSyncService* sync_service,
  42       const RemoteChange& remote_change);
  43   virtual ~RemoteSyncDelegate();
  44
  45   void Run(const SyncStatusCallback& callback);
  46
  47   const fileapi::FileSystemURL& url() const { return remote_change_.url; }
  48
  49  private:
  50   void DidPrepareForProcessRemoteChange(const SyncStatusCallback& callback,
  51                                         SyncStatusCode status,
  52                                         const SyncFileMetadata& metadata,
  53                                         const FileChangeList& local_changes);
  54   void ApplyRemoteChange(const SyncStatusCallback& callback);
  55   void DidApplyRemoteChange(const SyncStatusCallback& callback,
  56                             SyncStatusCode status);
  57   void DeleteMetadata(const SyncStatusCallback& callback);
  58   void DownloadFile(const SyncStatusCallback& callback);
  59   void DidDownloadFile(const SyncStatusCallback& callback,
  60                        google_apis::GDataErrorCode error,
  61                        const std::string& md5_checksum,
  62                        int64 file_size,
  63                        const base::Time& updated_time,
  64                        webkit_blob::ScopedFile downloaded_file);
  65   void HandleConflict(const SyncStatusCallback& callback,
  66                       SyncFileType remote_file_type);
  67   void HandleLocalWin(const SyncStatusCallback& callback);
  68   void HandleRemoteWin(const SyncStatusCallback& callback,
  69                        SyncFileType remote_file_type);
  70   void HandleManualResolutionCase(const SyncStatusCallback& callback);
  71   void DidGetEntryForConflictResolution(
  72       const SyncStatusCallback& callback,
  73       google_apis::GDataErrorCode error,
  74       scoped_ptr<google_apis::ResourceEntry> entry);
  75   void ResolveToLocal(const SyncStatusCallback& callback);
  76   void DidResolveToLocal(const SyncStatusCallback& callback,
  77                          SyncStatusCode status);
  78   void ResolveToRemote(const SyncStatusCallback& callback);
  79   void DidResolveToRemote(const SyncStatusCallback& callback,
  80                           SyncStatusCode status);
  81   void StartOver(const SyncStatusCallback& callback,
  82                  SyncStatusCode status);
  83
  84   void CompleteSync(const SyncStatusCallback& callback,
  85                     SyncStatusCode status);
  86   void AbortSync(const SyncStatusCallback& callback,
  87                  SyncStatusCode status);
  88   void DidFinish(const SyncStatusCallback& callback,
  89                  SyncStatusCode status);
  90   void DispatchCallbackAfterDidFinish(const SyncStatusCallback& callback,
  91                                       SyncStatusCode status);
  92
  93   SyncStatusCode GDataErrorCodeToSyncStatusCodeWrapper(
  94       google_apis::GDataErrorCode error);
  95
  96   DriveMetadataStore* metadata_store();
  97   APIUtilInterface* api_util();
  98   RemoteChangeHandler* remote_change_handler();
  99   RemoteChangeProcessor* remote_change_processor();
 100   ConflictResolutionResolver* conflict_resolution_resolver();
 101
 102   const FileChange& remote_file_change() const { return remote_change_.change; }
 103
 104   DriveFileSyncService* sync_service_;  // Not owned.
 105
 106   RemoteChange remote_change_;
 107   DriveMetadata drive_metadata_;
 108   SyncFileMetadata local_metadata_;
 109   webkit_blob::ScopedFile temporary_file_;
 110   std::string md5_checksum_;
 111   SyncAction sync_action_;
 112   bool metadata_updated_;
 113   bool clear_local_changes_;
 114
 115   std::string origin_resource_id_;
 116
 117   DISALLOW_COPY_AND_ASSIGN(RemoteSyncDelegate);
 118 };
 119
 120 }  // namespace drive_backend
 121
 122 }  // namespace sync_file_system
 123
 124 #endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_V1_REMOTE_SYNC_DELEGATE_H_