src/chromeos/dbus/fake_bluetooth_gatt_service_client.cc

   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 #include "chromeos/dbus/fake_bluetooth_gatt_service_client.h"
   6
   7 #include "base/bind.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "base/time/time.h"
  10 #include "chromeos/dbus/dbus_thread_manager.h"
  11 #include "chromeos/dbus/fake_bluetooth_gatt_characteristic_client.h"
  12 #include "third_party/cros_system_api/dbus/service_constants.h"
  13
  14 namespace chromeos {
  15
  16 namespace {
  17
  18 const int kExposeCharacteristicsDelayIntervalMs = 100;
  19
  20 }  // namespace
  21
  22 // static
  23 const char FakeBluetoothGattServiceClient::kHeartRateServicePathComponent[] =
  24     "service0000";
  25 const char FakeBluetoothGattServiceClient::kHeartRateServiceUUID[] =
  26     "0000180d-0000-1000-8000-00805f9b34fb";
  27
  28 FakeBluetoothGattServiceClient::Properties::Properties(
  29     const PropertyChangedCallback& callback)
  30     : BluetoothGattServiceClient::Properties(
  31         NULL,
  32         bluetooth_gatt_service::kBluetoothGattServiceInterface,
  33         callback) {
  34 }
  35
  36 FakeBluetoothGattServiceClient::Properties::~Properties() {
  37 }
  38
  39 void FakeBluetoothGattServiceClient::Properties::Get(
  40     dbus::PropertyBase* property,
  41     dbus::PropertySet::GetCallback callback) {
  42   VLOG(1) << "Get " << property->name();
  43   callback.Run(false);
  44 }
  45
  46 void FakeBluetoothGattServiceClient::Properties::GetAll() {
  47   VLOG(1) << "GetAll";
  48 }
  49
  50 void FakeBluetoothGattServiceClient::Properties::Set(
  51     dbus::PropertyBase* property,
  52     dbus::PropertySet::GetCallback callback) {
  53   VLOG(1) << "Set " << property->name();
  54   callback.Run(false);
  55 }
  56
  57 FakeBluetoothGattServiceClient::FakeBluetoothGattServiceClient()
  58     : weak_ptr_factory_(this) {
  59 }
  60
  61 FakeBluetoothGattServiceClient::~FakeBluetoothGattServiceClient() {
  62 }
  63
  64 void FakeBluetoothGattServiceClient::Init(dbus::Bus* bus) {
  65 }
  66
  67 void FakeBluetoothGattServiceClient::AddObserver(Observer* observer) {
  68   observers_.AddObserver(observer);
  69 }
  70
  71 void FakeBluetoothGattServiceClient::RemoveObserver(Observer* observer) {
  72   observers_.RemoveObserver(observer);
  73 }
  74
  75 std::vector<dbus::ObjectPath> FakeBluetoothGattServiceClient::GetServices() {
  76   std::vector<dbus::ObjectPath> paths;
  77   if (heart_rate_service_properties_.get()) {
  78     DCHECK(!heart_rate_service_path_.empty());
  79     paths.push_back(dbus::ObjectPath(heart_rate_service_path_));
  80   }
  81   return paths;
  82 }
  83
  84 FakeBluetoothGattServiceClient::Properties*
  85 FakeBluetoothGattServiceClient::GetProperties(
  86     const dbus::ObjectPath& object_path) {
  87   if (object_path.value() == heart_rate_service_path_)
  88     return heart_rate_service_properties_.get();
  89   return NULL;
  90 }
  91
  92 void FakeBluetoothGattServiceClient::ExposeHeartRateService(
  93     const dbus::ObjectPath& device_path) {
  94   if (IsHeartRateVisible()) {
  95     DCHECK(!heart_rate_service_path_.empty());
  96     VLOG(1) << "Fake Heart Rate Service already exposed.";
  97     return;
  98   }
  99   VLOG(2) << "Exposing fake Heart Rate Service.";
 100   heart_rate_service_path_ =
 101       device_path.value() + "/" + kHeartRateServicePathComponent;
 102   heart_rate_service_properties_.reset(new Properties(base::Bind(
 103       &FakeBluetoothGattServiceClient::OnPropertyChanged,
 104       base::Unretained(this),
 105       dbus::ObjectPath(heart_rate_service_path_))));
 106   heart_rate_service_properties_->uuid.ReplaceValue(kHeartRateServiceUUID);
 107   heart_rate_service_properties_->device.ReplaceValue(device_path);
 108   heart_rate_service_properties_->primary.ReplaceValue(true);
 109
 110   NotifyServiceAdded(dbus::ObjectPath(heart_rate_service_path_));
 111
 112   base::MessageLoop::current()->PostDelayedTask(
 113       FROM_HERE,
 114       base::Bind(
 115           &FakeBluetoothGattServiceClient::ExposeHeartRateCharacteristics,
 116           weak_ptr_factory_.GetWeakPtr()),
 117           base::TimeDelta::FromMilliseconds(
 118               kExposeCharacteristicsDelayIntervalMs));
 119 }
 120
 121 void FakeBluetoothGattServiceClient::HideHeartRateService() {
 122   if (!IsHeartRateVisible()) {
 123     DCHECK(heart_rate_service_path_.empty());
 124     VLOG(1) << "Fake Heart Rate Service already hidden.";
 125     return;
 126   }
 127   VLOG(2) << "Hiding fake Heart Rate Service.";
 128   FakeBluetoothGattCharacteristicClient* char_client =
 129       static_cast<FakeBluetoothGattCharacteristicClient*>(
 130           DBusThreadManager::Get()->GetBluetoothGattCharacteristicClient());
 131   char_client->HideHeartRateCharacteristics();
 132
 133   // Notify observers before deleting the properties structure so that it
 134   // can be accessed from the observer method.
 135   NotifyServiceRemoved(dbus::ObjectPath(heart_rate_service_path_));
 136
 137   heart_rate_service_properties_.reset();
 138   heart_rate_service_path_.clear();
 139 }
 140
 141 bool FakeBluetoothGattServiceClient::IsHeartRateVisible() const {
 142   return !!heart_rate_service_properties_.get();
 143 }
 144
 145 dbus::ObjectPath
 146 FakeBluetoothGattServiceClient::GetHeartRateServicePath() const {
 147   return dbus::ObjectPath(heart_rate_service_path_);
 148 }
 149
 150 void FakeBluetoothGattServiceClient::OnPropertyChanged(
 151     const dbus::ObjectPath& object_path,
 152     const std::string& property_name) {
 153   VLOG(2) << "Fake GATT Service property changed: " << object_path.value()
 154           << ": " << property_name;
 155   FOR_EACH_OBSERVER(BluetoothGattServiceClient::Observer, observers_,
 156                     GattServicePropertyChanged(object_path, property_name));
 157 }
 158
 159 void FakeBluetoothGattServiceClient::NotifyServiceAdded(
 160     const dbus::ObjectPath& object_path) {
 161   VLOG(2) << "GATT service added: " << object_path.value();
 162   FOR_EACH_OBSERVER(
 163       BluetoothGattServiceClient::Observer, observers_,
 164       GattServiceAdded(object_path));
 165 }
 166
 167 void FakeBluetoothGattServiceClient::NotifyServiceRemoved(
 168     const dbus::ObjectPath& object_path) {
 169   VLOG(2) << "GATT service removed: " << object_path.value();
 170   FOR_EACH_OBSERVER(
 171       BluetoothGattServiceClient::Observer, observers_,
 172       GattServiceRemoved(object_path));
 173 }
 174
 175 void FakeBluetoothGattServiceClient::ExposeHeartRateCharacteristics() {
 176   if (!IsHeartRateVisible()) {
 177     VLOG(2) << "Heart Rate service not visible. Not exposing characteristics.";
 178     return;
 179   }
 180   FakeBluetoothGattCharacteristicClient* char_client =
 181       static_cast<FakeBluetoothGattCharacteristicClient*>(
 182           DBusThreadManager::Get()->GetBluetoothGattCharacteristicClient());
 183   char_client->ExposeHeartRateCharacteristics(
 184       dbus::ObjectPath(heart_rate_service_path_));
 185
 186   std::vector<dbus::ObjectPath> char_paths;
 187   char_paths.push_back(char_client->GetHeartRateMeasurementPath());
 188   char_paths.push_back(char_client->GetBodySensorLocationPath());
 189   char_paths.push_back(char_client->GetHeartRateControlPointPath());
 190
 191   heart_rate_service_properties_->characteristics.ReplaceValue(char_paths);
 192 }
 193
 194 }  // namespace chromeos