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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_H_ | |
6 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_H_ | |
7 | |
8 #include <string> | |
9 #include <vector> | |
10 | |
11 #include "base/memory/scoped_ptr.h" | |
12 #include "base/memory/weak_ptr.h" | |
13 #include "base/observer_list.h" | |
14 #include "base/threading/thread_checker.h" | |
15 #include "components/drive/change_list_loader_observer.h" | |
16 #include "components/drive/file_system/operation_delegate.h" | |
17 #include "components/drive/file_system_interface.h" | |
18 #include "google_apis/drive/drive_api_error_codes.h" | |
19 | |
20 class PrefService; | |
21 | |
22 namespace base { | |
23 class SequencedTaskRunner; | |
24 } // namespace base | |
25 | |
26 namespace google_apis { | |
27 class AboutResource; | |
28 class ResourceEntry; | |
29 } // namespace google_apis | |
30 | |
31 namespace drive { | |
32 struct ClientContext; | |
33 class EventLogger; | |
34 class FileCacheEntry; | |
35 class FileSystemObserver; | |
36 class JobScheduler; | |
37 | |
38 namespace internal { | |
39 class AboutResourceLoader; | |
40 class ChangeListLoader; | |
41 class DirectoryLoader; | |
42 class FileCache; | |
43 class LoaderController; | |
44 class ResourceMetadata; | |
45 class SyncClient; | |
46 } // namespace internal | |
47 | |
48 namespace file_system { | |
49 class CopyOperation; | |
50 class CreateDirectoryOperation; | |
51 class CreateFileOperation; | |
52 class DownloadOperation; | |
53 class GetFileForSavingOperation; | |
54 class MoveOperation; | |
55 class OpenFileOperation; | |
56 class RemoveOperation; | |
57 class SearchOperation; | |
58 class SetPropertyOperation; | |
59 class TouchOperation; | |
60 class TruncateOperation; | |
61 } // namespace file_system | |
62 | |
63 // The production implementation of FileSystemInterface. | |
64 class FileSystem : public FileSystemInterface, | |
65 public internal::ChangeListLoaderObserver, | |
66 public file_system::OperationDelegate { | |
67 public: | |
68 FileSystem(PrefService* pref_service, | |
69 EventLogger* logger, | |
70 internal::FileCache* cache, | |
71 JobScheduler* scheduler, | |
72 internal::ResourceMetadata* resource_metadata, | |
73 base::SequencedTaskRunner* blocking_task_runner, | |
74 base::SingleThreadTaskRunner* file_task_runner, | |
75 const base::FilePath& temporary_file_directory); | |
76 ~FileSystem() override; | |
77 | |
78 // FileSystemInterface overrides. | |
79 void AddObserver(FileSystemObserver* observer) override; | |
80 void RemoveObserver(FileSystemObserver* observer) override; | |
81 void CheckForUpdates() override; | |
82 void Search(const std::string& search_query, | |
83 const GURL& next_link, | |
84 const SearchCallback& callback) override; | |
85 void SearchMetadata(const std::string& query, | |
86 int options, | |
87 int at_most_num_matches, | |
88 const SearchMetadataCallback& callback) override; | |
89 void SearchByHashes(const std::set<std::string>& hashes, | |
90 const SearchByHashesCallback& callback) override; | |
91 void TransferFileFromLocalToRemote( | |
92 const base::FilePath& local_src_file_path, | |
93 const base::FilePath& remote_dest_file_path, | |
94 const FileOperationCallback& callback) override; | |
95 void OpenFile(const base::FilePath& file_path, | |
96 OpenMode open_mode, | |
97 const std::string& mime_type, | |
98 const OpenFileCallback& callback) override; | |
99 void Copy(const base::FilePath& src_file_path, | |
100 const base::FilePath& dest_file_path, | |
101 bool preserve_last_modified, | |
102 const FileOperationCallback& callback) override; | |
103 void Move(const base::FilePath& src_file_path, | |
104 const base::FilePath& dest_file_path, | |
105 const FileOperationCallback& callback) override; | |
106 void Remove(const base::FilePath& file_path, | |
107 bool is_recursive, | |
108 const FileOperationCallback& callback) override; | |
109 void CreateDirectory(const base::FilePath& directory_path, | |
110 bool is_exclusive, | |
111 bool is_recursive, | |
112 const FileOperationCallback& callback) override; | |
113 void CreateFile(const base::FilePath& file_path, | |
114 bool is_exclusive, | |
115 const std::string& mime_type, | |
116 const FileOperationCallback& callback) override; | |
117 void TouchFile(const base::FilePath& file_path, | |
118 const base::Time& last_access_time, | |
119 const base::Time& last_modified_time, | |
120 const FileOperationCallback& callback) override; | |
121 void TruncateFile(const base::FilePath& file_path, | |
122 int64 length, | |
123 const FileOperationCallback& callback) override; | |
124 void Pin(const base::FilePath& file_path, | |
125 const FileOperationCallback& callback) override; | |
126 void Unpin(const base::FilePath& file_path, | |
127 const FileOperationCallback& callback) override; | |
128 void GetFile(const base::FilePath& file_path, | |
129 const GetFileCallback& callback) override; | |
130 void GetFileForSaving(const base::FilePath& file_path, | |
131 const GetFileCallback& callback) override; | |
132 base::Closure GetFileContent( | |
133 const base::FilePath& file_path, | |
134 const GetFileContentInitializedCallback& initialized_callback, | |
135 const google_apis::GetContentCallback& get_content_callback, | |
136 const FileOperationCallback& completion_callback) override; | |
137 void GetResourceEntry(const base::FilePath& file_path, | |
138 const GetResourceEntryCallback& callback) override; | |
139 void ReadDirectory(const base::FilePath& directory_path, | |
140 const ReadDirectoryEntriesCallback& entries_callback, | |
141 const FileOperationCallback& completion_callback) override; | |
142 void GetAvailableSpace(const GetAvailableSpaceCallback& callback) override; | |
143 void GetShareUrl(const base::FilePath& file_path, | |
144 const GURL& embed_origin, | |
145 const GetShareUrlCallback& callback) override; | |
146 void GetMetadata(const GetFilesystemMetadataCallback& callback) override; | |
147 void MarkCacheFileAsMounted(const base::FilePath& drive_file_path, | |
148 const MarkMountedCallback& callback) override; | |
149 void MarkCacheFileAsUnmounted(const base::FilePath& cache_file_path, | |
150 const FileOperationCallback& callback) override; | |
151 void AddPermission(const base::FilePath& drive_file_path, | |
152 const std::string& email, | |
153 google_apis::drive::PermissionRole role, | |
154 const FileOperationCallback& callback) override; | |
155 void SetProperty(const base::FilePath& drive_file_path, | |
156 google_apis::drive::Property::Visibility visibility, | |
157 const std::string& key, | |
158 const std::string& value, | |
159 const FileOperationCallback& callback) override; | |
160 void Reset(const FileOperationCallback& callback) override; | |
161 void GetPathFromResourceId(const std::string& resource_id, | |
162 const GetFilePathCallback& callback) override; | |
163 void FreeDiskSpaceIfNeededFor(int64 num_bytes, | |
164 const FreeDiskSpaceCallback& callback) override; | |
165 void CalculateEvictableCacheSize( | |
166 const EvictableCacheSizeCallback& callback) override; | |
167 | |
168 // file_system::OperationDelegate overrides. | |
169 void OnFileChangedByOperation(const FileChange& changed_files) override; | |
170 void OnEntryUpdatedByOperation(const ClientContext& context, | |
171 const std::string& local_id) override; | |
172 void OnDriveSyncError(file_system::DriveSyncErrorType type, | |
173 const std::string& local_id) override; | |
174 bool WaitForSyncComplete(const std::string& local_id, | |
175 const FileOperationCallback& callback) override; | |
176 | |
177 // ChangeListLoader::Observer overrides. | |
178 // Used to propagate events from ChangeListLoader. | |
179 void OnDirectoryReloaded(const base::FilePath& directory_path) override; | |
180 void OnFileChanged(const FileChange& changed_files) override; | |
181 void OnLoadFromServerComplete() override; | |
182 void OnInitialLoadComplete() override; | |
183 | |
184 // Used by tests. | |
185 internal::ChangeListLoader* change_list_loader_for_testing() { | |
186 return change_list_loader_.get(); | |
187 } | |
188 internal::SyncClient* sync_client_for_testing() { return sync_client_.get(); } | |
189 | |
190 private: | |
191 struct CreateDirectoryParams; | |
192 | |
193 // Used for initialization and Reset(). (Re-)initializes sub components that | |
194 // need to be recreated during the reset of resource metadata and the cache. | |
195 void ResetComponents(); | |
196 | |
197 // Part of CreateDirectory(). Called after ReadDirectory() | |
198 // is called and made sure that the resource metadata is loaded. | |
199 void CreateDirectoryAfterRead(const CreateDirectoryParams& params, | |
200 FileError error); | |
201 | |
202 void FinishPin(const FileOperationCallback& callback, | |
203 const std::string* local_id, | |
204 FileError error); | |
205 | |
206 void FinishUnpin(const FileOperationCallback& callback, | |
207 const std::string* local_id, | |
208 FileError error); | |
209 | |
210 // Callback for handling about resource fetch. | |
211 void OnGetAboutResource( | |
212 const GetAvailableSpaceCallback& callback, | |
213 google_apis::DriveApiErrorCode status, | |
214 scoped_ptr<google_apis::AboutResource> about_resource); | |
215 | |
216 // Part of CheckForUpdates(). Called when | |
217 // ChangeListLoader::CheckForUpdates() is complete. | |
218 void OnUpdateChecked(FileError error); | |
219 | |
220 // Part of GetResourceEntry(). | |
221 // Called when ReadDirectory() is complete. | |
222 void GetResourceEntryAfterRead(const base::FilePath& file_path, | |
223 const GetResourceEntryCallback& callback, | |
224 FileError error); | |
225 | |
226 // Part of GetShareUrl. Resolves the resource entry to get the resource it, | |
227 // and then uses it to ask for the share url. |callback| must not be null. | |
228 void GetShareUrlAfterGetResourceEntry(const base::FilePath& file_path, | |
229 const GURL& embed_origin, | |
230 const GetShareUrlCallback& callback, | |
231 ResourceEntry* entry, | |
232 FileError error); | |
233 void OnGetResourceEntryForGetShareUrl(const GetShareUrlCallback& callback, | |
234 google_apis::DriveApiErrorCode status, | |
235 const GURL& share_url); | |
236 // Part of AddPermission. | |
237 void AddPermissionAfterGetResourceEntry( | |
238 const std::string& email, | |
239 google_apis::drive::PermissionRole role, | |
240 const FileOperationCallback& callback, | |
241 ResourceEntry* entry, | |
242 FileError error); | |
243 | |
244 // Part of OnDriveSyncError(). | |
245 virtual void OnDriveSyncErrorAfterGetFilePath( | |
246 file_system::DriveSyncErrorType type, | |
247 const base::FilePath* file_path, | |
248 FileError error); | |
249 | |
250 // Used to get Drive related preferences. | |
251 PrefService* pref_service_; | |
252 | |
253 // Sub components owned by DriveIntegrationService. | |
254 EventLogger* logger_; | |
255 internal::FileCache* cache_; | |
256 JobScheduler* scheduler_; | |
257 internal::ResourceMetadata* resource_metadata_; | |
258 | |
259 // Time of the last update check. | |
260 base::Time last_update_check_time_; | |
261 | |
262 // Error of the last update check. | |
263 FileError last_update_check_error_; | |
264 | |
265 // Used to load about resource. | |
266 scoped_ptr<internal::AboutResourceLoader> about_resource_loader_; | |
267 | |
268 // Used to control ChangeListLoader. | |
269 scoped_ptr<internal::LoaderController> loader_controller_; | |
270 | |
271 // The loader is used to load the change lists. | |
272 scoped_ptr<internal::ChangeListLoader> change_list_loader_; | |
273 | |
274 scoped_ptr<internal::DirectoryLoader> directory_loader_; | |
275 | |
276 scoped_ptr<internal::SyncClient> sync_client_; | |
277 | |
278 base::ObserverList<FileSystemObserver> observers_; | |
279 | |
280 scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_; | |
281 scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_; | |
282 | |
283 base::FilePath temporary_file_directory_; | |
284 | |
285 // Implementation of each file system operation. | |
286 scoped_ptr<file_system::CopyOperation> copy_operation_; | |
287 scoped_ptr<file_system::CreateDirectoryOperation> create_directory_operation_; | |
288 scoped_ptr<file_system::CreateFileOperation> create_file_operation_; | |
289 scoped_ptr<file_system::MoveOperation> move_operation_; | |
290 scoped_ptr<file_system::OpenFileOperation> open_file_operation_; | |
291 scoped_ptr<file_system::RemoveOperation> remove_operation_; | |
292 scoped_ptr<file_system::TouchOperation> touch_operation_; | |
293 scoped_ptr<file_system::TruncateOperation> truncate_operation_; | |
294 scoped_ptr<file_system::DownloadOperation> download_operation_; | |
295 scoped_ptr<file_system::SearchOperation> search_operation_; | |
296 scoped_ptr<file_system::GetFileForSavingOperation> | |
297 get_file_for_saving_operation_; | |
298 scoped_ptr<file_system::SetPropertyOperation> set_property_operation_; | |
299 | |
300 base::ThreadChecker thread_checker_; | |
301 | |
302 // Note: This should remain the last member so it'll be destroyed and | |
303 // invalidate the weak pointers before any other members are destroyed. | |
304 base::WeakPtrFactory<FileSystem> weak_ptr_factory_; | |
305 | |
306 DISALLOW_COPY_AND_ASSIGN(FileSystem); | |
307 }; | |
308 | |
309 } // namespace drive | |
310 | |
311 #endif // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_H_ | |
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