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 CHROMEOS_DBUS_BLUETOOTH_INPUT_CLIENT_H_
6#define CHROMEOS_DBUS_BLUETOOTH_INPUT_CLIENT_H_
7
8#include <string>
9#include <vector>
10
11#include "base/callback.h"
12#include "base/observer_list.h"
13#include "chromeos/chromeos_export.h"
14#include "chromeos/dbus/dbus_client.h"
15#include "dbus/object_path.h"
16#include "dbus/property.h"
17
18namespace chromeos {
19
20// BluetoothInputClient is used to communicate with objects representing
21// Bluetooth Input (HID) devices.
22class CHROMEOS_EXPORT BluetoothInputClient : public DBusClient {
23 public:
24  // Structure of properties associated with bluetooth input devices.
25  struct Properties : public dbus::PropertySet {
26    // The Bluetooth input device reconnect mode. Read-only.
27    dbus::Property<std::string> reconnect_mode;
28
29    Properties(dbus::ObjectProxy* object_proxy,
30               const std::string& interface_name,
31               const PropertyChangedCallback& callback);
32    virtual ~Properties();
33  };
34
35  // Interface for observing changes from a remote bluetooth input device.
36  class Observer {
37   public:
38    virtual ~Observer() {}
39
40    // Called when the remote device with object path |object_path| implementing
41    // the Input interface is added to the set of known devices or an already
42    // known device implements the Input interface.
43    virtual void InputAdded(const dbus::ObjectPath& object_path) {}
44
45    // Called when the remote device with object path |object_path| is removed
46    // from the set of known devices or does not implement the Input interface
47    // anymore.
48    virtual void InputRemoved(const dbus::ObjectPath& object_path) {}
49
50    // Called when the device with object path |object_path| has a
51    // change in value of the property named |property_name| of its Input
52    // interface.
53    virtual void InputPropertyChanged(const dbus::ObjectPath& object_path,
54                                      const std::string& property_name) {}
55  };
56
57  virtual ~BluetoothInputClient();
58
59  // Adds and removes observers for events on all remote bluetooth input
60  // devices. Check the |object_path| parameter of observer methods to
61  // determine which device is issuing the event.
62  virtual void AddObserver(Observer* observer) = 0;
63  virtual void RemoveObserver(Observer* observer) = 0;
64
65  // Obtain the properties for the device with object path |object_path|,
66  // any values should be copied if needed.
67  virtual Properties* GetProperties(const dbus::ObjectPath& object_path) = 0;
68
69  // Creates the instance.
70  static BluetoothInputClient* Create();
71
72 protected:
73  BluetoothInputClient();
74
75 private:
76  DISALLOW_COPY_AND_ASSIGN(BluetoothInputClient);
77};
78
79}  // namespace chromeos
80
81#endif  // CHROMEOS_DBUS_BLUETOOTH_INPUT_CLIENT_H_
82