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_EXTENSIONS_FILE_MANAGER_EVENT_ROUTER_H_ 6 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_EVENT_ROUTER_H_ 7 8 #include <map> 9 #include <string> 10 11 #include "base/basictypes.h" 12 #include "base/compiler_specific.h" 13 #include "base/files/file_path_watcher.h" 14 #include "base/memory/scoped_ptr.h" 15 #include "chrome/browser/chromeos/drive/drive_integration_service.h" 16 #include "chrome/browser/chromeos/drive/file_system_observer.h" 17 #include "chrome/browser/chromeos/drive/job_list.h" 18 #include "chrome/browser/chromeos/drive/sync_client.h" 19 #include "chrome/browser/chromeos/file_manager/file_watcher.h" 20 #include "chrome/browser/chromeos/file_manager/fileapi_util.h" 21 #include "chrome/browser/chromeos/file_manager/volume_manager.h" 22 #include "chrome/browser/chromeos/file_manager/volume_manager_observer.h" 23 #include "chrome/browser/drive/drive_service_interface.h" 24 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h" 25 #include "chrome/common/extensions/api/file_browser_private.h" 26 #include "chromeos/disks/disk_mount_manager.h" 27 #include "chromeos/network/network_state_handler_observer.h" 28 #include "content/public/browser/notification_observer.h" 29 #include "content/public/browser/notification_registrar.h" 30 #include "webkit/browser/fileapi/file_system_operation.h" 31 32 class PrefChangeRegistrar; 33 class Profile; 34 35 using file_manager::util::EntryDefinition; 36 37 namespace base { 38 class ListValue; 39 } 40 41 namespace chromeos { 42 class NetworkState; 43 } 44 45 namespace file_manager { 46 47 // Monitors changes in disk mounts, network connection state and preferences 48 // affecting File Manager. Dispatches appropriate File Browser events. 49 class EventRouter 50 : public chromeos::NetworkStateHandlerObserver, 51 public drive::FileSystemObserver, 52 public drive::JobListObserver, 53 public drive::DriveServiceObserver, 54 public VolumeManagerObserver, 55 public content::NotificationObserver, 56 public chrome::MultiUserWindowManager::Observer { 57 public: 58 explicit EventRouter(Profile* profile); 59 virtual ~EventRouter(); 60 61 void Shutdown(); 62 63 // Starts observing file system change events. 64 void ObserveEvents(); 65 66 typedef base::Callback<void(bool success)> BoolCallback; 67 68 // Adds a file watch at |local_path|, associated with |virtual_path|, for 69 // an extension with |extension_id|. 70 // 71 // |callback| will be called with true on success, or false on failure. 72 // |callback| must not be null. 73 void AddFileWatch(const base::FilePath& local_path, 74 const base::FilePath& virtual_path, 75 const std::string& extension_id, 76 const BoolCallback& callback); 77 78 // Removes a file watch at |local_path| for an extension with |extension_id|. 79 void RemoveFileWatch(const base::FilePath& local_path, 80 const std::string& extension_id); 81 82 // Called when a copy task is completed. 83 void OnCopyCompleted( 84 int copy_id, const GURL& source_url, const GURL& destination_url, 85 base::File::Error error); 86 87 // Called when a copy task progress is updated. 88 void OnCopyProgress(int copy_id, 89 fileapi::FileSystemOperation::CopyProgressType type, 90 const GURL& source_url, 91 const GURL& destination_url, 92 int64 size); 93 94 // Register observer to the multi user window manager. 95 void RegisterMultiUserWindowManagerObserver(); 96 97 // chromeos::NetworkStateHandlerObserver overrides. 98 virtual void DefaultNetworkChanged( 99 const chromeos::NetworkState* network) OVERRIDE; 100 101 // drive::JobListObserver overrides. 102 virtual void OnJobAdded(const drive::JobInfo& job_info) OVERRIDE; 103 virtual void OnJobUpdated(const drive::JobInfo& job_info) OVERRIDE; 104 virtual void OnJobDone(const drive::JobInfo& job_info, 105 drive::FileError error) OVERRIDE; 106 107 // drive::DriveServiceObserver overrides. 108 virtual void OnRefreshTokenInvalid() OVERRIDE; 109 110 // drive::FileSystemObserver overrides. 111 virtual void OnDirectoryChanged(const base::FilePath& drive_path) OVERRIDE; 112 virtual void OnDriveSyncError(drive::file_system::DriveSyncErrorType type, 113 const base::FilePath& drive_path) OVERRIDE; 114 115 // VolumeManagerObserver overrides. 116 virtual void OnDiskAdded( 117 const chromeos::disks::DiskMountManager::Disk& disk, 118 bool mounting) OVERRIDE; 119 virtual void OnDiskRemoved( 120 const chromeos::disks::DiskMountManager::Disk& disk) OVERRIDE; 121 virtual void OnDeviceAdded(const std::string& device_path) OVERRIDE; 122 virtual void OnDeviceRemoved(const std::string& device_path, 123 bool hard_unplugged) OVERRIDE; 124 virtual void OnVolumeMounted(chromeos::MountError error_code, 125 const VolumeInfo& volume_info, 126 bool is_remounting) OVERRIDE; 127 virtual void OnVolumeUnmounted(chromeos::MountError error_code, 128 const VolumeInfo& volume_info) OVERRIDE; 129 virtual void OnFormatStarted( 130 const std::string& device_path, bool success) OVERRIDE; 131 virtual void OnFormatCompleted( 132 const std::string& device_path, bool success) OVERRIDE; 133 134 // content::NotificationObserver overrides. 135 virtual void Observe(int type, 136 const content::NotificationSource& source, 137 const content::NotificationDetails& details) OVERRIDE; 138 139 // chrome::MultiUserWindowManager::Observer overrides: 140 virtual void OnOwnerEntryChanged(aura::Window* window) OVERRIDE; 141 142 private: 143 typedef std::map<base::FilePath, FileWatcher*> WatcherMap; 144 145 // Called when prefs related to file manager change. 146 void OnFileManagerPrefsChanged(); 147 148 // Process file watch notifications. 149 void HandleFileWatchNotification(const base::FilePath& path, 150 bool got_error); 151 152 // Sends directory change event. 153 void DispatchDirectoryChangeEvent( 154 const base::FilePath& path, 155 bool error, 156 const std::vector<std::string>& extension_ids); 157 158 // Sends directory change event, after converting the file definition to entry 159 // definition. 160 void DispatchDirectoryChangeEventWithEntryDefinition( 161 bool watcher_error, 162 const EntryDefinition& entry_definition); 163 164 // If needed, opens a file manager window for the removable device mounted at 165 // |mount_path|. Disk.mount_path() is empty, since it is being filled out 166 // after calling notifying observers by DiskMountManager. 167 void ShowRemovableDeviceInFileManager(VolumeType type, 168 const base::FilePath& mount_path); 169 170 // Dispatches an onDeviceChanged event containing |type| and |path| to 171 // extensions. 172 void DispatchDeviceEvent( 173 extensions::api::file_browser_private::DeviceEventType type, 174 const std::string& path); 175 176 // Sends onFileTranferUpdated to extensions if needed. If |always| is true, 177 // it sends the event always. Otherwise, it sends the event if enough time has 178 // passed from the previous event so as not to make extension busy. 179 void SendDriveFileTransferEvent(bool always); 180 181 // Manages the list of currently active Drive file transfer jobs. 182 struct DriveJobInfoWithStatus { 183 DriveJobInfoWithStatus(); 184 DriveJobInfoWithStatus(const drive::JobInfo& info, 185 const std::string& status); 186 drive::JobInfo job_info; 187 std::string status; 188 }; 189 std::map<drive::JobID, DriveJobInfoWithStatus> drive_jobs_; 190 base::Time last_file_transfer_event_; 191 base::Time last_copy_progress_event_; 192 193 WatcherMap file_watchers_; 194 scoped_ptr<PrefChangeRegistrar> pref_change_registrar_; 195 Profile* profile_; 196 197 content::NotificationRegistrar notification_registrar_; 198 bool multi_user_window_manager_observer_registered_; 199 200 // Note: This should remain the last member so it'll be destroyed and 201 // invalidate the weak pointers before any other members are destroyed. 202 base::WeakPtrFactory<EventRouter> weak_factory_; 203 DISALLOW_COPY_AND_ASSIGN(EventRouter); 204 }; 205 206 } // namespace file_manager 207 208 #endif // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_EVENT_ROUTER_H_ 209
