| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_CHROMEOS_FILE_MANAGER_VOLUME_MANAGER_H_ |
| #define CHROME_BROWSER_CHROMEOS_FILE_MANAGER_VOLUME_MANAGER_H_ |
| |
| #include <map> |
| #include <string> |
| #include <vector> |
| |
| #include "base/basictypes.h" |
| #include "base/files/file.h" |
| #include "base/files/file_path.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/observer_list.h" |
| #include "base/prefs/pref_change_registrar.h" |
| #include "chrome/browser/chromeos/drive/drive_integration_service.h" |
| #include "chrome/browser/chromeos/file_system_provider/observer.h" |
| #include "chrome/browser/chromeos/file_system_provider/service.h" |
| #include "chrome/browser/local_discovery/storage/privet_volume_lister.h" |
| #include "chromeos/dbus/cros_disks_client.h" |
| #include "chromeos/disks/disk_mount_manager.h" |
| #include "components/keyed_service/core/keyed_service.h" |
| #include "components/storage_monitor/removable_storage_observer.h" |
| |
| class Profile; |
| |
| namespace chromeos { |
| class PowerManagerClient; |
| } // namespace chromeos |
| |
| namespace content { |
| class BrowserContext; |
| } // namespace content |
| |
| namespace file_manager { |
| |
| class MountedDiskMonitor; |
| class SnapshotManager; |
| class VolumeManagerObserver; |
| |
| // Identifiers for volume types managed by Chrome OS file manager. |
| enum VolumeType { |
| VOLUME_TYPE_TESTING = -1, // Used only in tests. |
| VOLUME_TYPE_GOOGLE_DRIVE = 0, |
| VOLUME_TYPE_DOWNLOADS_DIRECTORY, |
| VOLUME_TYPE_REMOVABLE_DISK_PARTITION, |
| VOLUME_TYPE_MOUNTED_ARCHIVE_FILE, |
| VOLUME_TYPE_CLOUD_DEVICE, |
| VOLUME_TYPE_PROVIDED, // File system provided by the FileSystemProvider API. |
| VOLUME_TYPE_MTP, |
| // The enum values must be kept in sync with FileManagerVolumeType in |
| // tools/metrics/histograms/histograms.xml. Since enums for histograms are |
| // append-only (for keeping the number consistent across versions), new values |
| // for this enum also has to be always appended at the end (i.e., here). |
| NUM_VOLUME_TYPE, |
| }; |
| |
| struct VolumeInfo { |
| VolumeInfo(); |
| ~VolumeInfo(); |
| |
| // The ID of the volume. |
| std::string volume_id; |
| |
| // The ID for provided file systems. If other type, then empty string. Unique |
| // per providing extension. |
| std::string file_system_id; |
| |
| // The ID of an extension providing the file system. If other type, then equal |
| // to an empty string. |
| std::string extension_id; |
| |
| // The type of mounted volume. |
| VolumeType type; |
| |
| // The type of device. (e.g. USB, SD card, DVD etc.) |
| chromeos::DeviceType device_type; |
| |
| // The source path of the volume. |
| // E.g.: |
| // - /home/chronos/user/Downloads/zipfile_path.zip |
| base::FilePath source_path; |
| |
| // The mount path of the volume. |
| // E.g.: |
| // - /home/chronos/user/Downloads |
| // - /media/removable/usb1 |
| // - /media/archive/zip1 |
| base::FilePath mount_path; |
| |
| // The mounting condition. See the enum for the details. |
| chromeos::disks::MountCondition mount_condition; |
| |
| // Path of the system device this device's block is a part of. |
| // (e.g. /sys/devices/pci0000:00/.../8:0:0:0/) |
| base::FilePath system_path_prefix; |
| |
| // Label for the volume if the volume is either removable or a provided |
| // file system. In case of removables, if disk is a parent, then its label, |
| // else parents label (e.g. "TransMemory"). |
| std::string volume_label; |
| |
| // Is the device is a parent device (i.e. sdb rather than sdb1). |
| bool is_parent; |
| |
| // True if the volume is read only. |
| bool is_read_only; |
| }; |
| |
| // Manages "Volume"s for file manager. Here are "Volume"s. |
| // - Drive File System (not yet supported). |
| // - Downloads directory. |
| // - Removable disks (volume will be created for each partition, not only one |
| // for a device). |
| // - Mounted zip archives. |
| class VolumeManager : public KeyedService, |
| public drive::DriveIntegrationServiceObserver, |
| public chromeos::disks::DiskMountManager::Observer, |
| public chromeos::file_system_provider::Observer, |
| public storage_monitor::RemovableStorageObserver { |
| public: |
| VolumeManager( |
| Profile* profile, |
| drive::DriveIntegrationService* drive_integration_service, |
| chromeos::PowerManagerClient* power_manager_client, |
| chromeos::disks::DiskMountManager* disk_mount_manager, |
| chromeos::file_system_provider::Service* file_system_provider_service); |
| virtual ~VolumeManager(); |
| |
| // Returns the instance corresponding to the |context|. |
| static VolumeManager* Get(content::BrowserContext* context); |
| |
| // Initializes this instance. |
| void Initialize(); |
| |
| // Disposes this instance. |
| virtual void Shutdown() OVERRIDE; |
| |
| // Adds an observer. |
| void AddObserver(VolumeManagerObserver* observer); |
| |
| // Removes the observer. |
| void RemoveObserver(VolumeManagerObserver* observer); |
| |
| // Returns the information about all volumes currently mounted. |
| std::vector<VolumeInfo> GetVolumeInfoList() const; |
| |
| // Finds VolumeInfo for the given volume ID. If found, returns true and the |
| // result is written into |result|. Returns false otherwise. |
| bool FindVolumeInfoById(const std::string& volume_id, |
| VolumeInfo* result) const; |
| |
| // For testing purpose, registers a native local file system pointing to |
| // |path| with DOWNLOADS type, and adds its volume info. |
| bool RegisterDownloadsDirectoryForTesting(const base::FilePath& path); |
| |
| // For testing purpose, adds a volume info pointing to |path|, with TESTING |
| // type. Assumes that the mount point is already registered. |
| void AddVolumeInfoForTesting(const base::FilePath& path, |
| VolumeType volume_type, |
| chromeos::DeviceType device_type); |
| |
| // drive::DriveIntegrationServiceObserver overrides. |
| virtual void OnFileSystemMounted() OVERRIDE; |
| virtual void OnFileSystemBeingUnmounted() OVERRIDE; |
| |
| // chromeos::disks::DiskMountManager::Observer overrides. |
| virtual void OnDiskEvent( |
| chromeos::disks::DiskMountManager::DiskEvent event, |
| const chromeos::disks::DiskMountManager::Disk* disk) OVERRIDE; |
| virtual void OnDeviceEvent( |
| chromeos::disks::DiskMountManager::DeviceEvent event, |
| const std::string& device_path) OVERRIDE; |
| virtual void OnMountEvent( |
| chromeos::disks::DiskMountManager::MountEvent event, |
| chromeos::MountError error_code, |
| const chromeos::disks::DiskMountManager::MountPointInfo& mount_info) |
| OVERRIDE; |
| virtual void OnFormatEvent( |
| chromeos::disks::DiskMountManager::FormatEvent event, |
| chromeos::FormatError error_code, |
| const std::string& device_path) OVERRIDE; |
| |
| // chromeos::file_system_provider::Observer overrides. |
| virtual void OnProvidedFileSystemMount( |
| const chromeos::file_system_provider::ProvidedFileSystemInfo& |
| file_system_info, |
| base::File::Error error) OVERRIDE; |
| virtual void OnProvidedFileSystemUnmount( |
| const chromeos::file_system_provider::ProvidedFileSystemInfo& |
| file_system_info, |
| base::File::Error error) OVERRIDE; |
| |
| // Called on change to kExternalStorageDisabled pref. |
| void OnExternalStorageDisabledChanged(); |
| |
| // RemovableStorageObserver overrides. |
| virtual void OnRemovableStorageAttached( |
| const storage_monitor::StorageInfo& info) OVERRIDE; |
| virtual void OnRemovableStorageDetached( |
| const storage_monitor::StorageInfo& info) OVERRIDE; |
| |
| SnapshotManager* snapshot_manager() { return snapshot_manager_.get(); } |
| |
| private: |
| void OnDiskMountManagerRefreshed(bool success); |
| void OnStorageMonitorInitialized(); |
| void OnPrivetVolumesAvailable( |
| const local_discovery::PrivetVolumeLister::VolumeList& volumes); |
| void DoMountEvent(chromeos::MountError error_code, |
| const VolumeInfo& volume_info, |
| bool is_remounting); |
| void DoUnmountEvent(chromeos::MountError error_code, |
| const VolumeInfo& volume_info); |
| |
| Profile* profile_; |
| drive::DriveIntegrationService* drive_integration_service_; // Not owned. |
| chromeos::disks::DiskMountManager* disk_mount_manager_; // Not owned. |
| scoped_ptr<MountedDiskMonitor> mounted_disk_monitor_; |
| PrefChangeRegistrar pref_change_registrar_; |
| ObserverList<VolumeManagerObserver> observers_; |
| scoped_ptr<local_discovery::PrivetVolumeLister> privet_volume_lister_; |
| chromeos::file_system_provider::Service* |
| file_system_provider_service_; // Not owned by this class. |
| std::map<std::string, VolumeInfo> mounted_volumes_; |
| scoped_ptr<SnapshotManager> snapshot_manager_; |
| |
| // Note: This should remain the last member so it'll be destroyed and |
| // invalidate its weak pointers before any other members are destroyed. |
| base::WeakPtrFactory<VolumeManager> weak_ptr_factory_; |
| DISALLOW_COPY_AND_ASSIGN(VolumeManager); |
| }; |
| |
| } // namespace file_manager |
| |
| #endif // CHROME_BROWSER_CHROMEOS_FILE_MANAGER_VOLUME_MANAGER_H_ |