device/bluetooth/bluetooth_remote_gatt_descriptor_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_DESCRIPTOR_CHROMEOS_H_
   6 #define DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_DESCRIPTOR_CHROMEOS_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/memory/weak_ptr.h"
  12 #include "dbus/object_path.h"
  13 #include "device/bluetooth/bluetooth_gatt_descriptor.h"
  14 #include "device/bluetooth/bluetooth_uuid.h"
  15
  16 namespace device {
  17
  18 class BluetoothGattCharacteristic;
  19
  20 }  // namespace device
  21
  22 namespace chromeos {
  23
  24 class BluetoothRemoteGattCharacteristicChromeOS;
  25
  26 // The BluetoothRemoteGattDescriptorChromeOS class implements
  27 // BluetoothGattDescriptor for remote GATT characteristic descriptors on the
  28 // Chrome OS platform.
  29 class BluetoothRemoteGattDescriptorChromeOS
  30     : public device::BluetoothGattDescriptor {
  31  public:
  32   // device::BluetoothGattDescriptor overrides.
  33   std::string GetIdentifier() const override;
  34   device::BluetoothUUID GetUUID() const override;
  35   bool IsLocal() const override;
  36   const std::vector<uint8>& GetValue() const override;
  37   device::BluetoothGattCharacteristic* GetCharacteristic() const override;
  38   device::BluetoothGattCharacteristic::Permissions GetPermissions()
  39       const override;
  40   void ReadRemoteDescriptor(const ValueCallback& callback,
  41                             const ErrorCallback& error_callback) override;
  42   void WriteRemoteDescriptor(const std::vector<uint8>& new_value,
  43                              const base::Closure& callback,
  44                              const ErrorCallback& error_callback) override;
  45
  46   // Object path of the underlying D-Bus characteristic.
  47   const dbus::ObjectPath& object_path() const { return object_path_; }
  48
  49  private:
  50   friend class BluetoothRemoteGattCharacteristicChromeOS;
  51
  52   BluetoothRemoteGattDescriptorChromeOS(
  53       BluetoothRemoteGattCharacteristicChromeOS* characteristic,
  54       const dbus::ObjectPath& object_path);
  55   ~BluetoothRemoteGattDescriptorChromeOS() override;
  56
  57   // Called by dbus:: on unsuccessful completion of a request to read or write
  58   // the descriptor value.
  59   void OnError(const ErrorCallback& error_callback,
  60                const std::string& error_name,
  61                const std::string& error_message);
  62
  63   // Object path of the D-Bus descriptor object.
  64   dbus::ObjectPath object_path_;
  65
  66   // The GATT characteristic this descriptor belongs to.
  67   BluetoothRemoteGattCharacteristicChromeOS* characteristic_;
  68
  69   // Note: This should remain the last member so it'll be destroyed and
  70   // invalidate its weak pointers before any other members are destroyed.
  71   base::WeakPtrFactory<BluetoothRemoteGattDescriptorChromeOS> weak_ptr_factory_;
  72
  73   DISALLOW_COPY_AND_ASSIGN(BluetoothRemoteGattDescriptorChromeOS);
  74 };
  75
  76 }  // namespace chromeos
  77
  78 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_DESCRIPTOR_CHROMEOS_H_