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. 4 5 #ifndef ASH_SYSTEM_CHROMEOS_BLUETOOTH_BLUETOOTH_NOTIFICATION_CONTROLLER_H_ 6 #define ASH_SYSTEM_CHROMEOS_BLUETOOTH_BLUETOOTH_NOTIFICATION_CONTROLLER_H_ 7 8 #include <set> 9 10 #include "ash/ash_export.h" 11 #include "base/basictypes.h" 12 #include "base/compiler_specific.h" 13 #include "base/memory/ref_counted.h" 14 #include "base/memory/weak_ptr.h" 15 #include "base/strings/string16.h" 16 #include "device/bluetooth/bluetooth_adapter.h" 17 #include "device/bluetooth/bluetooth_device.h" 18 19 namespace ash { 20 21 // The BluetoothNotificationController receives incoming pairing requests from 22 // the BluetoothAdapter, and notifications of changes to the adapter state and 23 // set of paired devices. It presents incoming pairing requests in the form of 24 // rich notifications that the user can interact with to approve the request. 25 class ASH_EXPORT BluetoothNotificationController 26 : public device::BluetoothAdapter::Observer, 27 public device::BluetoothDevice::PairingDelegate { 28 public: 29 BluetoothNotificationController(); 30 virtual ~BluetoothNotificationController(); 31 32 // device::BluetoothAdapter::Observer override. 33 virtual void AdapterDiscoverableChanged(device::BluetoothAdapter* adapter, 34 bool discoverable) OVERRIDE; 35 virtual void DeviceAdded(device::BluetoothAdapter* adapter, 36 device::BluetoothDevice* device) OVERRIDE; 37 virtual void DeviceChanged(device::BluetoothAdapter* adapter, 38 device::BluetoothDevice* device) OVERRIDE; 39 virtual void DeviceRemoved(device::BluetoothAdapter* adapter, 40 device::BluetoothDevice* device) OVERRIDE; 41 42 // device::BluetoothDevice::PairingDelegate override. 43 virtual void RequestPinCode(device::BluetoothDevice* device) OVERRIDE; 44 virtual void RequestPasskey(device::BluetoothDevice* device) OVERRIDE; 45 virtual void DisplayPinCode(device::BluetoothDevice* device, 46 const std::string& pincode) OVERRIDE; 47 virtual void DisplayPasskey(device::BluetoothDevice* device, 48 uint32 passkey) OVERRIDE; 49 virtual void KeysEntered(device::BluetoothDevice* device, 50 uint32 entered) OVERRIDE; 51 virtual void ConfirmPasskey(device::BluetoothDevice* device, 52 uint32 passkey) OVERRIDE; 53 virtual void AuthorizePairing(device::BluetoothDevice* device) OVERRIDE; 54 55 private: 56 // Internal method called by BluetoothAdapterFactory to provide the adapter 57 // object. 58 void OnGetAdapter(scoped_refptr<device::BluetoothAdapter> adapter); 59 60 // Presents a notification to the user when the adapter becomes discoverable 61 // to other nearby devices. 62 void NotifyAdapterDiscoverable(); 63 64 // Presents a notification to the user that a device |device| is making a 65 // pairing request. The exact message to display is given in |message| and 66 // should include all relevant instructions, if |with_buttons| is true then 67 // the notification will have Accept and Reject buttons, if false only the 68 // usual cancel/dismiss button will be present on the notification. 69 void NotifyPairing(device::BluetoothDevice* device, 70 const base::string16& message, 71 bool with_buttons); 72 73 // Clears any shown pairing notification now that the device has been paired. 74 void NotifyPairedDevice(device::BluetoothDevice* device); 75 76 // Reference to the underlying BluetoothAdapter object, holding this reference 77 // ensures we stay around as the pairing delegate for that adapter. 78 scoped_refptr<device::BluetoothAdapter> adapter_; 79 80 // Set of currently paired devices, stored by Bluetooth address, used to 81 // filter out property changes for devices that were previously paired. 82 std::set<std::string> paired_devices_; 83 84 // Note: This should remain the last member so it'll be destroyed and 85 // invalidate its weak pointers before any other members are destroyed. 86 base::WeakPtrFactory<BluetoothNotificationController> weak_ptr_factory_; 87 88 DISALLOW_COPY_AND_ASSIGN(BluetoothNotificationController); 89 }; 90 91 } // namespace ash 92 93 #endif // ASH_SYSTEM_CHROMEOS_BLUETOOTH_BLUETOOTH_NOTIFICATION_CONTROLLER_H_ 94