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_CHROMEOS_FILE_MANAGER_VOLUME_MANAGER_H_ 6 #define CHROME_BROWSER_CHROMEOS_FILE_MANAGER_VOLUME_MANAGER_H_ 7 8 #include "base/basictypes.h" 9 #include "base/files/file_path.h" 10 #include "base/memory/scoped_ptr.h" 11 #include "base/observer_list.h" 12 #include "base/prefs/pref_change_registrar.h" 13 #include "chrome/browser/chromeos/drive/drive_integration_service.h" 14 #include "chromeos/disks/disk_mount_manager.h" 15 #include "chromeos/dbus/cros_disks_client.h" 16 #include "components/browser_context_keyed_service/browser_context_keyed_service.h" 17 18 class Profile; 19 20 namespace chromeos { 21 class PowerManagerClient; 22 } // namespace chromeos 23 24 namespace content { 25 class BrowserContext; 26 } // namespace content 27 28 namespace drive { 29 class DriveIntegrationService; 30 } // namespace drive 31 32 namespace file_manager { 33 34 class MountedDiskMonitor; 35 class VolumeManagerObserver; 36 37 // This manager manages "Drive" and "Downloads" in addition to disks managed 38 // by DiskMountManager. 39 enum VolumeType { 40 VOLUME_TYPE_GOOGLE_DRIVE, 41 VOLUME_TYPE_DOWNLOADS_DIRECTORY, 42 VOLUME_TYPE_REMOVABLE_DISK_PARTITION, 43 VOLUME_TYPE_MOUNTED_ARCHIVE_FILE, 44 }; 45 46 struct VolumeInfo { 47 VolumeInfo(); 48 ~VolumeInfo(); 49 50 // The ID of the volume. 51 std::string volume_id; 52 53 // The type of mounted volume. 54 VolumeType type; 55 56 // The type of device. (e.g. USB, SD card, DVD etc.) 57 chromeos::DeviceType device_type; 58 59 // The source path of the volume. 60 // E.g.: 61 // - /home/chronos/user/Downloads/zipfile_path.zip 62 base::FilePath source_path; 63 64 // The mount path of the volume. 65 // E.g.: 66 // - /home/chronos/user/Downloads 67 // - /media/removable/usb1 68 // - /media/archive/zip1 69 base::FilePath mount_path; 70 71 // The mounting condition. See the enum for the details. 72 chromeos::disks::MountCondition mount_condition; 73 74 // Path of the system device this device's block is a part of. 75 // (e.g. /sys/devices/pci0000:00/.../8:0:0:0/) 76 base::FilePath system_path_prefix; 77 78 // If disk is a parent, then its label, else parents label. 79 // (e.g. "TransMemory") 80 std::string drive_label; 81 82 // Is the device is a parent device (i.e. sdb rather than sdb1). 83 bool is_parent; 84 85 // True if the volume is read only. 86 bool is_read_only; 87 }; 88 89 // Manages "Volume"s for file manager. Here are "Volume"s. 90 // - Drive File System (not yet supported). 91 // - Downloads directory. 92 // - Removable disks (volume will be created for each partition, not only one 93 // for a device). 94 // - Mounted zip archives. 95 class VolumeManager : public BrowserContextKeyedService, 96 public drive::DriveIntegrationServiceObserver, 97 public chromeos::disks::DiskMountManager::Observer { 98 public: 99 VolumeManager(Profile* profile, 100 drive::DriveIntegrationService* drive_integration_service, 101 chromeos::PowerManagerClient* power_manager_client, 102 chromeos::disks::DiskMountManager* disk_mount_manager); 103 virtual ~VolumeManager(); 104 105 // Returns the instance corresponding to the |context|. 106 static VolumeManager* Get(content::BrowserContext* context); 107 108 // Intializes this instance. 109 void Initialize(); 110 111 // Disposes this instance. 112 virtual void Shutdown() OVERRIDE; 113 114 // Adds an observer. 115 void AddObserver(VolumeManagerObserver* observer); 116 117 // Removes the observer. 118 void RemoveObserver(VolumeManagerObserver* observer); 119 120 // Returns the information about all volumes currently mounted. 121 std::vector<VolumeInfo> GetVolumeInfoList() const; 122 123 // Finds VolumeInfo for the given volume ID. If found, returns true and the 124 // result is written into |result|. Returns false otherwise. 125 bool FindVolumeInfoById(const std::string& volume_id, 126 VolumeInfo* result) const; 127 128 // drive::DriveIntegrationServiceObserver overrides. 129 virtual void OnFileSystemMounted() OVERRIDE; 130 virtual void OnFileSystemBeingUnmounted() OVERRIDE; 131 132 // chromeos::disks::DiskMountManager::Observer overrides. 133 virtual void OnDiskEvent( 134 chromeos::disks::DiskMountManager::DiskEvent event, 135 const chromeos::disks::DiskMountManager::Disk* disk) OVERRIDE; 136 virtual void OnDeviceEvent( 137 chromeos::disks::DiskMountManager::DeviceEvent event, 138 const std::string& device_path) OVERRIDE; 139 virtual void OnMountEvent( 140 chromeos::disks::DiskMountManager::MountEvent event, 141 chromeos::MountError error_code, 142 const chromeos::disks::DiskMountManager::MountPointInfo& mount_info) 143 OVERRIDE; 144 virtual void OnFormatEvent( 145 chromeos::disks::DiskMountManager::FormatEvent event, 146 chromeos::FormatError error_code, 147 const std::string& device_path) OVERRIDE; 148 149 // Called on change to kExternalStorageDisabled pref. 150 void OnExternalStorageDisabledChanged(); 151 152 private: 153 Profile* profile_; 154 drive::DriveIntegrationService* drive_integration_service_; 155 chromeos::disks::DiskMountManager* disk_mount_manager_; 156 scoped_ptr<MountedDiskMonitor> mounted_disk_monitor_; 157 PrefChangeRegistrar pref_change_registrar_; 158 ObserverList<VolumeManagerObserver> observers_; 159 DISALLOW_COPY_AND_ASSIGN(VolumeManager); 160 }; 161 162 } // namespace file_manager 163 164 #endif // CHROME_BROWSER_CHROMEOS_FILE_MANAGER_VOLUME_MANAGER_H_ 165
