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_REMOTE_SYNC_DELEGATE_H_ 6 #define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_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/api_util.h" 13 #include "chrome/browser/sync_file_system/drive_backend/drive_file_sync_service.h" 14 #include "chrome/browser/sync_file_system/drive_backend/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 scoped_ptr<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 91 SyncStatusCode GDataErrorCodeToSyncStatusCodeWrapper( 92 google_apis::GDataErrorCode error); 93 94 DriveMetadataStore* metadata_store(); 95 APIUtilInterface* api_util(); 96 RemoteChangeHandler* remote_change_handler(); 97 RemoteChangeProcessor* remote_change_processor(); 98 ConflictResolutionResolver* conflict_resolution_resolver(); 99 100 const FileChange& remote_file_change() const { return remote_change_.change; } 101 102 DriveFileSyncService* sync_service_; // Not owned. 103 104 RemoteChange remote_change_; 105 DriveMetadata drive_metadata_; 106 SyncFileMetadata local_metadata_; 107 webkit_blob::ScopedFile temporary_file_; 108 std::string md5_checksum_; 109 SyncAction sync_action_; 110 bool metadata_updated_; 111 bool clear_local_changes_; 112 113 std::string origin_resource_id_; 114 115 DISALLOW_COPY_AND_ASSIGN(RemoteSyncDelegate); 116 }; 117 118 } // namespace drive_backend 119 120 } // namespace sync_file_system 121 122 #endif // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_REMOTE_SYNC_DELEGATE_H_ 123