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| 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_MOUNTED_DISK_MONITOR_H_ | |
| 6 #define CHROME_BROWSER_CHROMEOS_FILE_MANAGER_MOUNTED_DISK_MONITOR_H_ | |
| 7 | |
| 8 #include <map> | |
| 9 #include <set> | |
| 10 #include <string> | |
| 11 | |
| 12 #include "base/memory/scoped_ptr.h" | |
| 13 #include "base/memory/weak_ptr.h" | |
| 14 #include "chromeos/dbus/power_manager_client.h" | |
| 15 #include "chromeos/disks/disk_mount_manager.h" | |
| 16 | |
| 17 namespace file_manager { | |
| 18 | |
| 19 // Observes PowerManager and updates its state when the system suspends and | |
| 20 // resumes. After the system resumes it will stay in "is_resuming" state for | |
| 21 // couple of seconds. This is to give DiskManager time to process device | |
| 22 // removed/added events (events for the devices that were present before suspend | |
| 23 // should not trigger any new notifications or file manager windows). | |
| 24 class MountedDiskMonitor : public chromeos::PowerManagerClient::Observer { | |
| 25 public: | |
| 26 explicit MountedDiskMonitor( | |
| 27 chromeos::PowerManagerClient* power_manager_client); | |
| 28 virtual ~MountedDiskMonitor(); | |
| 29 | |
| 30 // PowerManagerClient::Observer overrides: | |
| 31 virtual void SuspendImminent() OVERRIDE; | |
| 32 virtual void SuspendDone(const base::TimeDelta& sleep_duration) OVERRIDE; | |
| 33 | |
| 34 // Receives forwarded notifications originates from DiskMountManager. | |
| 35 void OnDiskEvent( | |
| 36 chromeos::disks::DiskMountManager::DiskEvent event, | |
| 37 const chromeos::disks::DiskMountManager::Disk* disk); | |
| 38 void OnDeviceEvent( | |
| 39 chromeos::disks::DiskMountManager::DeviceEvent event, | |
| 40 const std::string& device_path); | |
| 41 void OnMountEvent( | |
| 42 chromeos::disks::DiskMountManager::MountEvent event, | |
| 43 chromeos::MountError error_code, | |
| 44 const chromeos::disks::DiskMountManager::MountPointInfo& mount_info, | |
| 45 const chromeos::disks::DiskMountManager::Disk* disk); | |
| 46 | |
| 47 // Checks if the disk is being remounted. The disk is remounting if it has | |
| 48 // been unmounted during the resuming time span. | |
| 49 bool DiskIsRemounting( | |
| 50 const chromeos::disks::DiskMountManager::Disk& disk) const; | |
| 51 bool DeviceIsHardUnpluggedButNotReported( | |
| 52 const std::string& device_path) const; | |
| 53 void MarkAsHardUnpluggedReported(const std::string& device_path); | |
| 54 | |
| 55 // In order to avoid consuming time a lot for testing, this allows to set the | |
| 56 // resuming time span. | |
| 57 void set_resuming_time_span_for_testing( | |
| 58 const base::TimeDelta& resuming_time_span) { | |
| 59 resuming_time_span_ = resuming_time_span; | |
| 60 } | |
| 61 | |
| 62 private: | |
| 63 enum HardUnpluggedState { HARD_UNPLUGGED, HARD_UNPLUGGED_AND_REPORTED }; | |
| 64 // Maps source paths with corresponding uuids. | |
| 65 typedef std::map<std::string, std::string> DiskMap; | |
| 66 | |
| 67 // Set of uuids. | |
| 68 typedef std::set<std::string> DiskSet; | |
| 69 | |
| 70 void Reset(); | |
| 71 | |
| 72 chromeos::PowerManagerClient* power_manager_client_; | |
| 73 | |
| 74 bool is_resuming_; | |
| 75 DiskMap mounted_disks_; | |
| 76 DiskSet unmounted_while_resuming_; | |
| 77 // Set of device path that is hard unplugged. | |
| 78 std::map<std::string, HardUnpluggedState> hard_unplugged_; | |
| 79 base::TimeDelta resuming_time_span_; | |
| 80 base::WeakPtrFactory<MountedDiskMonitor> weak_factory_; | |
| 81 | |
| 82 DISALLOW_COPY_AND_ASSIGN(MountedDiskMonitor); | |
| 83 }; | |
| 84 | |
| 85 } // namespace file_manager | |
| 86 | |
| 87 #endif // CHROME_BROWSER_CHROMEOS_FILE_MANAGER_MOUNTED_DISK_MONITOR_H_ | |
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