chromeos/dbus/fake_bluetooth_gatt_descriptor_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_descriptor_client.h"
   6
   7 #include "base/bind.h"
   8 #include "base/logging.h"
   9 #include "third_party/cros_system_api/dbus/service_constants.h"
  10
  11 namespace chromeos {
  12
  13 const char FakeBluetoothGattDescriptorClient::
  14     kClientCharacteristicConfigurationPathComponent[] = "desc0000";
  15 const char FakeBluetoothGattDescriptorClient::
  16     kClientCharacteristicConfigurationUUID[] =
  17         "00002902-0000-1000-8000-00805f9b34fb";
  18
  19 FakeBluetoothGattDescriptorClient::Properties::Properties(
  20     const PropertyChangedCallback& callback)
  21     : BluetoothGattDescriptorClient::Properties(
  22           NULL,
  23           bluetooth_gatt_descriptor::kBluetoothGattDescriptorInterface,
  24           callback) {
  25 }
  26
  27 FakeBluetoothGattDescriptorClient::Properties::~Properties() {
  28 }
  29
  30 void FakeBluetoothGattDescriptorClient::Properties::Get(
  31     dbus::PropertyBase* property,
  32     dbus::PropertySet::GetCallback callback) {
  33   VLOG(1) << "Get " << property->name();
  34   callback.Run(true);
  35 }
  36
  37 void FakeBluetoothGattDescriptorClient::Properties::GetAll() {
  38   VLOG(1) << "GetAll";
  39 }
  40
  41 void FakeBluetoothGattDescriptorClient::Properties::Set(
  42     dbus::PropertyBase* property,
  43     dbus::PropertySet::SetCallback callback) {
  44   VLOG(1) << "Set " << property->name();
  45   callback.Run(false);
  46 }
  47
  48 FakeBluetoothGattDescriptorClient::DescriptorData::DescriptorData() {
  49 }
  50
  51 FakeBluetoothGattDescriptorClient::DescriptorData::~DescriptorData() {
  52 }
  53
  54 FakeBluetoothGattDescriptorClient::FakeBluetoothGattDescriptorClient()
  55     : weak_ptr_factory_(this) {
  56 }
  57
  58 FakeBluetoothGattDescriptorClient::~FakeBluetoothGattDescriptorClient() {
  59 }
  60
  61 void FakeBluetoothGattDescriptorClient::Init(dbus::Bus* bus) {
  62 }
  63
  64 void FakeBluetoothGattDescriptorClient::AddObserver(Observer* observer) {
  65   observers_.AddObserver(observer);
  66 }
  67
  68 void FakeBluetoothGattDescriptorClient::RemoveObserver(Observer* observer) {
  69   observers_.RemoveObserver(observer);
  70 }
  71
  72 std::vector<dbus::ObjectPath>
  73 FakeBluetoothGattDescriptorClient::GetDescriptors() {
  74   std::vector<dbus::ObjectPath> descriptors;
  75   for (PropertiesMap::const_iterator iter = properties_.begin();
  76        iter != properties_.end(); ++iter) {
  77     descriptors.push_back(iter->first);
  78   }
  79   return descriptors;
  80 }
  81
  82 FakeBluetoothGattDescriptorClient::Properties*
  83 FakeBluetoothGattDescriptorClient::GetProperties(
  84     const dbus::ObjectPath& object_path) {
  85   PropertiesMap::const_iterator iter = properties_.find(object_path);
  86   if (iter == properties_.end())
  87     return NULL;
  88   return iter->second->properties.get();
  89 }
  90
  91 void FakeBluetoothGattDescriptorClient::ReadValue(
  92     const dbus::ObjectPath& object_path,
  93     const ValueCallback& callback,
  94     const ErrorCallback& error_callback) {
  95   PropertiesMap::iterator iter = properties_.find(object_path);
  96   if (iter == properties_.end()) {
  97     error_callback.Run(kUnknownDescriptorError, "");
  98     return;
  99   }
 100
 101   callback.Run(iter->second->value);
 102 }
 103
 104 void FakeBluetoothGattDescriptorClient::WriteValue(
 105     const dbus::ObjectPath& object_path,
 106     const std::vector<uint8>& value,
 107     const base::Closure& callback,
 108     const ErrorCallback& error_callback) {
 109   if (properties_.find(object_path) == properties_.end()) {
 110     error_callback.Run(kUnknownDescriptorError, "");
 111     return;
 112   }
 113
 114   // Since the only fake descriptor is "Client Characteristic Configuration"
 115   // and BlueZ doesn't allow writing to it, return failure.
 116   error_callback.Run("org.bluez.Error.Failed",
 117                      "Writing to the Client Characteristic Configuration "
 118                      "descriptor not allowed");
 119 }
 120
 121 dbus::ObjectPath FakeBluetoothGattDescriptorClient::ExposeDescriptor(
 122     const dbus::ObjectPath& characteristic_path,
 123     const std::string& uuid) {
 124   if (uuid != kClientCharacteristicConfigurationUUID) {
 125     VLOG(2) << "Unsupported UUID: " << uuid;
 126     return dbus::ObjectPath();
 127   }
 128
 129   // CCC descriptor is the only one supported at the moment.
 130   DCHECK(characteristic_path.IsValid());
 131   dbus::ObjectPath object_path(
 132       characteristic_path.value() + "/" +
 133       kClientCharacteristicConfigurationPathComponent);
 134   DCHECK(object_path.IsValid());
 135   PropertiesMap::const_iterator iter = properties_.find(object_path);
 136   if (iter != properties_.end()) {
 137     VLOG(1) << "Descriptor already exposed: " << object_path.value();
 138     return dbus::ObjectPath();
 139   }
 140
 141   Properties* properties = new Properties(base::Bind(
 142       &FakeBluetoothGattDescriptorClient::OnPropertyChanged,
 143       weak_ptr_factory_.GetWeakPtr(),
 144       object_path));
 145   properties->uuid.ReplaceValue(uuid);
 146   properties->characteristic.ReplaceValue(characteristic_path);
 147
 148   DescriptorData* data = new DescriptorData();
 149   data->properties.reset(properties);
 150
 151   data->value.push_back(1);  // Notifications enabled.
 152   data->value.push_back(0);
 153
 154   properties_[object_path] = data;
 155
 156   NotifyDescriptorAdded(object_path);
 157
 158   return object_path;
 159 }
 160
 161 void FakeBluetoothGattDescriptorClient::HideDescriptor(
 162     const dbus::ObjectPath& descriptor_path) {
 163   PropertiesMap::iterator iter = properties_.find(descriptor_path);
 164   if (iter == properties_.end()) {
 165     VLOG(1) << "Descriptor not exposed: " << descriptor_path.value();
 166     return;
 167   }
 168
 169   NotifyDescriptorRemoved(descriptor_path);
 170
 171   delete iter->second;
 172   properties_.erase(iter);
 173 }
 174
 175 void FakeBluetoothGattDescriptorClient::OnPropertyChanged(
 176     const dbus::ObjectPath& object_path,
 177     const std::string& property_name) {
 178   VLOG(2) << "Descriptor property changed: " << object_path.value()
 179           << ": " << property_name;
 180
 181   FOR_EACH_OBSERVER(BluetoothGattDescriptorClient::Observer, observers_,
 182                     GattDescriptorPropertyChanged(object_path, property_name));
 183 }
 184
 185 void FakeBluetoothGattDescriptorClient::NotifyDescriptorAdded(
 186     const dbus::ObjectPath& object_path) {
 187   FOR_EACH_OBSERVER(BluetoothGattDescriptorClient::Observer, observers_,
 188                     GattDescriptorAdded(object_path));
 189 }
 190
 191 void FakeBluetoothGattDescriptorClient::NotifyDescriptorRemoved(
 192     const dbus::ObjectPath& object_path) {
 193   FOR_EACH_OBSERVER(BluetoothGattDescriptorClient::Observer, observers_,
 194                     GattDescriptorRemoved(object_path));
 195 }
 196
 197 }  // namespace chromeos