device/bluetooth/bluetooth_remote_gatt_service_chromeos.h

   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 DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVICE_CHROMEOS_H_
   6 #define DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVICE_CHROMEOS_H_
   7
   8 #include <map>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/observer_list.h"
  14 #include "chromeos/dbus/bluetooth_gatt_characteristic_client.h"
  15 #include "chromeos/dbus/bluetooth_gatt_service_client.h"
  16 #include "dbus/object_path.h"
  17 #include "device/bluetooth/bluetooth_gatt_service.h"
  18 #include "device/bluetooth/bluetooth_uuid.h"
  19
  20 namespace device {
  21
  22 class BluetoothGattCharacteristic;
  23
  24 }  // namespace device
  25
  26 namespace chromeos {
  27
  28 class BluetoothDeviceChromeOS;
  29 class BluetoothRemoteGattCharacteristicChromeOS;
  30
  31 // The BluetoothRemoteGattServiceChromeOS class implements BluetootGattService
  32 // for remote GATT services on the the Chrome OS platform.
  33 class BluetoothRemoteGattServiceChromeOS
  34     : public device::BluetoothGattService,
  35       public BluetoothGattServiceClient::Observer,
  36       public BluetoothGattCharacteristicClient::Observer {
  37  public:
  38   // device::BluetoothGattService overrides.
  39   virtual void AddObserver(
  40       device::BluetoothGattService::Observer* observer) OVERRIDE;
  41   virtual void RemoveObserver(
  42       device::BluetoothGattService::Observer* observer) OVERRIDE;
  43   virtual std::string GetIdentifier() const OVERRIDE;
  44   virtual device::BluetoothUUID GetUUID() const OVERRIDE;
  45   virtual bool IsLocal() const OVERRIDE;
  46   virtual bool IsPrimary() const OVERRIDE;
  47   virtual std::vector<device::BluetoothGattCharacteristic*>
  48       GetCharacteristics() const OVERRIDE;
  49   virtual std::vector<device::BluetoothGattService*>
  50       GetIncludedServices() const OVERRIDE;
  51   virtual device::BluetoothGattCharacteristic* GetCharacteristic(
  52       const std::string& identifier) OVERRIDE;
  53   virtual bool AddCharacteristic(
  54       device::BluetoothGattCharacteristic* characteristic) OVERRIDE;
  55   virtual bool AddIncludedService(
  56       device::BluetoothGattService* service) OVERRIDE;
  57   virtual void Register(const base::Closure& callback,
  58                         const ErrorCallback& error_callback) OVERRIDE;
  59   virtual void Unregister(const base::Closure& callback,
  60                           const ErrorCallback& error_callback) OVERRIDE;
  61
  62   // Object path of the underlying service.
  63   const dbus::ObjectPath& object_path() const { return object_path_; }
  64
  65   // Notifies its observers that the GATT service has changed. This is mainly
  66   // used by BluetoothRemoteGattCharacteristicChromeOS instances to notify
  67   // service observers when characteristic descriptors get added and removed.
  68   void NotifyServiceChanged();
  69
  70  private:
  71   friend class BluetoothDeviceChromeOS;
  72
  73   BluetoothRemoteGattServiceChromeOS(BluetoothDeviceChromeOS* device,
  74                                      const dbus::ObjectPath& object_path);
  75   virtual ~BluetoothRemoteGattServiceChromeOS();
  76
  77   // BluetoothGattServiceClient::Observer override.
  78   virtual void GattServicePropertyChanged(
  79       const dbus::ObjectPath& object_path,
  80       const std::string& property_name) OVERRIDE;
  81
  82   // BluetoothGattCharacteristicClient::Observer override.
  83   virtual void GattCharacteristicAdded(
  84       const dbus::ObjectPath& object_path) OVERRIDE;
  85   virtual void GattCharacteristicRemoved(
  86       const dbus::ObjectPath& object_path) OVERRIDE;
  87   virtual void GattCharacteristicPropertyChanged(
  88       const dbus::ObjectPath& object_path,
  89       const std::string& property_name) OVERRIDE;
  90
  91   // Object path of the GATT service.
  92   dbus::ObjectPath object_path_;
  93
  94   // List of observers interested in event notifications from us.
  95   ObserverList<device::BluetoothGattService::Observer> observers_;
  96
  97   // The device this GATT service belongs to.
  98   BluetoothDeviceChromeOS* device_;
  99
 100   // Mapping from GATT characteristic object paths to characteristic objects.
 101   // owned by this service. Since the Chrome OS implementation uses object
 102   // paths as unique identifiers, we also use this mapping to return
 103   // characteristics by identifier.
 104   typedef std::map<dbus::ObjectPath, BluetoothRemoteGattCharacteristicChromeOS*>
 105       CharacteristicMap;
 106   CharacteristicMap characteristics_;
 107
 108   // Note: This should remain the last member so it'll be destroyed and
 109   // invalidate its weak pointers before any other members are destroyed.
 110   base::WeakPtrFactory<BluetoothRemoteGattServiceChromeOS> weak_ptr_factory_;
 111
 112   DISALLOW_COPY_AND_ASSIGN(BluetoothRemoteGattServiceChromeOS);
 113 };
 114
 115 }  // namespace chromeos
 116
 117 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVICE_CHROMEOS_H_