1 // Copyright 2014 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.
5 #ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_DEVICE_EVENT_ROUTER_H_
6 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_DEVICE_EVENT_ROUTER_H_
11 #include "base/memory/weak_ptr.h"
12 #include "base/threading/thread_checker.h"
13 #include "chrome/browser/chromeos/file_manager/volume_manager_observer.h"
14 #include "chrome/common/extensions/api/file_manager_private.h"
15 #include "chromeos/dbus/power_manager_client.h"
17 namespace file_manager {
20 // Device is not being hard unplugged.
22 // Device is hard unplugged.
23 DEVICE_HARD_UNPLUGGED,
24 // Device is hard unplugged and reported to the JavaScript side.
25 DEVICE_HARD_UNPLUGGED_AND_REPORTED
28 // Event router for device events.
29 class DeviceEventRouter : public VolumeManagerObserver,
30 public chromeos::PowerManagerClient::Observer {
34 // |overriding_time_delta| overrides time delta of delayed tasks for testing
35 // |so that the tasks are executed by RunLoop::RunUntilIdle.
36 explicit DeviceEventRouter(base::TimeDelta overriding_time_delta);
38 virtual ~DeviceEventRouter();
40 // Turns the startup flag on, and then turns it off after few seconds.
43 // VolumeManagerObserver overrides.
44 virtual void OnDiskAdded(const chromeos::disks::DiskMountManager::Disk& disk,
45 bool mounting) OVERRIDE;
46 virtual void OnDiskRemoved(
47 const chromeos::disks::DiskMountManager::Disk& disk) OVERRIDE;
48 virtual void OnDeviceAdded(const std::string& device_path) OVERRIDE;
49 virtual void OnDeviceRemoved(const std::string& device_path) OVERRIDE;
50 virtual void OnVolumeMounted(chromeos::MountError error_code,
51 const VolumeInfo& volume_info) OVERRIDE;
52 virtual void OnVolumeUnmounted(chromeos::MountError error_code,
53 const VolumeInfo& volume_info) OVERRIDE;
54 virtual void OnFormatStarted(const std::string& device_path,
55 bool success) OVERRIDE;
56 virtual void OnFormatCompleted(const std::string& device_path,
57 bool success) OVERRIDE;
59 // PowerManagerClient::Observer overrides.
60 virtual void SuspendImminent() OVERRIDE;
61 virtual void SuspendDone(const base::TimeDelta& sleep_duration) OVERRIDE;
63 bool is_resuming() const { return is_resuming_; }
64 bool is_starting_up() const { return is_starting_up_; }
67 // Handles a device event containing |type| and |device_path|.
68 virtual void OnDeviceEvent(
69 extensions::api::file_manager_private::DeviceEventType type,
70 const std::string& device_path) = 0;
71 // Returns external storage is disabled or not.
72 virtual bool IsExternalStorageDisabled() = 0;
75 void StartupDelayed();
76 void OnDeviceAddedDelayed(const std::string& device_path);
77 void SuspendDoneDelayed();
79 // Obtains device state of the device having |device_path|.
80 DeviceState GetDeviceState(const std::string& device_path) const;
82 // Sets device state to the device having |device_path|.
83 void SetDeviceState(const std::string& device_path, DeviceState state);
85 // Whther to use zero time delta for testing or not.
86 const base::TimeDelta resume_time_delta_;
87 const base::TimeDelta startup_time_delta_;
89 // Whether the profile is starting up or not.
92 // Whether the system is resuming or not.
95 // Map of device path and device state.
96 std::map<std::string, DeviceState> device_states_;
99 base::ThreadChecker thread_checker_;
101 // Note: This should remain the last member so it'll be destroyed and
102 // invalidate the weak pointers before any other members are destroyed.
103 base::WeakPtrFactory<DeviceEventRouter> weak_factory_;
104 DISALLOW_COPY_AND_ASSIGN(DeviceEventRouter);
106 } // namespace file_manager
108 #endif // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_DEVICE_EVENT_ROUTER_H_