chromeos/dbus/fake_bluetooth_media_transport_client.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 CHROMEOS_DBUS_FAKE_BLUETOOTH_MEDIA_TRANSPORT_CLIENT_H_
   6 #define CHROMEOS_DBUS_FAKE_BLUETOOTH_MEDIA_TRANSPORT_CLIENT_H_
   7
   8 #include <map>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/observer_list.h"
  14 #include "chromeos/chromeos_export.h"
  15 #include "chromeos/dbus/bluetooth_media_transport_client.h"
  16 #include "dbus/object_path.h"
  17
  18 namespace chromeos {
  19
  20 class FakeBluetoothMediaEndpointServiceProvider;
  21
  22 class CHROMEOS_EXPORT FakeBluetoothMediaTransportClient
  23     : public BluetoothMediaTransportClient {
  24  public:
  25   struct Properties : public BluetoothMediaTransportClient::Properties {
  26     explicit Properties(const PropertyChangedCallback& callback);
  27     ~Properties() override;
  28
  29     void Get(dbus::PropertyBase* property,
  30              dbus::PropertySet::GetCallback callback) override;
  31     void GetAll() override;
  32     void Set(dbus::PropertyBase* property,
  33              dbus::PropertySet::SetCallback callback) override;
  34   };
  35
  36   // The default path of the transport object.
  37   static const char kTransportPath[];
  38
  39   // The default properties including device, codec, configuration, state, delay
  40   // and volume, owned by a fake media transport object we emulate.
  41   static const char kTransportDevicePath[];
  42   static const uint8_t kTransportCodec;
  43   static const std::vector<uint8_t> kTransportConfiguration;
  44   static const uint16_t kTransportDelay;
  45   static const uint16_t kTransportVolume;
  46
  47   FakeBluetoothMediaTransportClient();
  48   ~FakeBluetoothMediaTransportClient() override;
  49
  50   // DBusClient override.
  51   void Init(dbus::Bus* bus) override;
  52
  53   // BluetoothMediaTransportClient override.
  54   void AddObserver(Observer* observer) override;
  55   void RemoveObserver(Observer* observer) override;
  56   Properties* GetProperties(const dbus::ObjectPath& object_path) override;
  57   void Acquire(const dbus::ObjectPath& object_path,
  58                const AcquireCallback& callback,
  59                const ErrorCallback& error_callback) override;
  60   void TryAcquire(const dbus::ObjectPath& object_path,
  61                   const AcquireCallback& callback,
  62                   const ErrorCallback& error_callback) override;
  63   void Release(const dbus::ObjectPath& object_path,
  64                const base::Closure& callback,
  65                const ErrorCallback& error_callback) override;
  66
  67   // Makes the transport valid/invalid for a given media endpoint. The transport
  68   // object is assigned to the given endpoint if valid is true, false
  69   // otherwise.
  70   void SetValid(FakeBluetoothMediaEndpointServiceProvider* endpoint,
  71                 bool valid);
  72
  73   // Set state/volume property to a certain value.
  74   void SetState(const dbus::ObjectPath& endpoint_path,
  75                 const std::string& state);
  76   void SetVolume(const dbus::ObjectPath& endpoint_path,
  77                  const uint16_t& volume);
  78
  79   // Gets the transport path associated with the given endpoint path.
  80   dbus::ObjectPath GetTransportPath(const dbus::ObjectPath& endpoint_path);
  81
  82   // Gets the endpoint path associated with the given transport_path.
  83   dbus::ObjectPath GetEndpointPath(const dbus::ObjectPath& transport_path);
  84
  85  private:
  86   // This class is used for simulating the scenario where each media endpoint
  87   // has a corresponding transport path and properties. Once an endpoint is
  88   // assigned with a transport path, an object of Transport is created.
  89   class Transport {
  90    public:
  91     Transport(const dbus::ObjectPath& transport_path,
  92               Properties* transport_properties);
  93     ~Transport();
  94
  95     // An unique transport path.
  96     dbus::ObjectPath path;
  97
  98     // The property set bound with |path|.
  99     scoped_ptr<Properties> properties;
 100   };
 101
 102   // Property callback passed while a Properties structure is created.
 103   void OnPropertyChanged(const std::string& property_name);
 104
 105   // Map of endpoints with valid transport. Each pair is composed of an endpoint
 106   // path and a Transport structure containing a transport path and its
 107   // properties.
 108   std::map<dbus::ObjectPath, Transport*> endpoint_to_transport_map_;
 109
 110   // Map of valid transports. Each pair is composed of a transport path as the
 111   // key and an endpoint path as the value. This map is used to get the
 112   // corresponding endpoint path when GetProperties() is called.
 113   std::map<dbus::ObjectPath, dbus::ObjectPath> transport_to_endpoint_map_;
 114
 115   // The path of the media transport object.
 116   dbus::ObjectPath object_path_;
 117
 118   ObserverList<BluetoothMediaTransportClient::Observer> observers_;
 119
 120   DISALLOW_COPY_AND_ASSIGN(FakeBluetoothMediaTransportClient);
 121 };
 122
 123 }  // namespace chromeos
 124
 125 #endif  // CHROMEOS_DBUS_FAKE_BLUETOOTH_MEDIA_TRANSPORT_CLIENT_H_