src/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   for(PropertiesMap::iterator iter = properties_.begin(); iter !=
  60       properties_.end(); iter++)
  61     delete iter->second;
  62 }
  63
  64 void FakeBluetoothGattDescriptorClient::Init(dbus::Bus* bus) {
  65 }
  66
  67 void FakeBluetoothGattDescriptorClient::AddObserver(Observer* observer) {
  68   observers_.AddObserver(observer);
  69 }
  70
  71 void FakeBluetoothGattDescriptorClient::RemoveObserver(Observer* observer) {
  72   observers_.RemoveObserver(observer);
  73 }
  74
  75 std::vector<dbus::ObjectPath>
  76 FakeBluetoothGattDescriptorClient::GetDescriptors() {
  77   std::vector<dbus::ObjectPath> descriptors;
  78   for (PropertiesMap::const_iterator iter = properties_.begin();
  79        iter != properties_.end(); ++iter) {
  80     descriptors.push_back(iter->first);
  81   }
  82   return descriptors;
  83 }
  84
  85 FakeBluetoothGattDescriptorClient::Properties*
  86 FakeBluetoothGattDescriptorClient::GetProperties(
  87     const dbus::ObjectPath& object_path) {
  88   PropertiesMap::const_iterator iter = properties_.find(object_path);
  89   if (iter == properties_.end())
  90     return NULL;
  91   return iter->second->properties.get();
  92 }
  93
  94 void FakeBluetoothGattDescriptorClient::ReadValue(
  95     const dbus::ObjectPath& object_path,
  96     const ValueCallback& callback,
  97     const ErrorCallback& error_callback) {
  98   PropertiesMap::iterator iter = properties_.find(object_path);
  99   if (iter == properties_.end()) {
 100     error_callback.Run(kUnknownDescriptorError, "");
 101     return;
 102   }
 103
 104   callback.Run(iter->second->value);
 105 }
 106
 107 void FakeBluetoothGattDescriptorClient::WriteValue(
 108     const dbus::ObjectPath& object_path,
 109     const std::vector<uint8>& value,
 110     const base::Closure& callback,
 111     const ErrorCallback& error_callback) {
 112   if (properties_.find(object_path) == properties_.end()) {
 113     error_callback.Run(kUnknownDescriptorError, "");
 114     return;
 115   }
 116
 117   // Since the only fake descriptor is "Client Characteristic Configuration"
 118   // and BlueZ doesn't allow writing to it, return failure.
 119   error_callback.Run("org.bluez.Error.WriteNotPermitted",
 120                      "Writing to the Client Characteristic Configuration "
 121                      "descriptor not allowed");
 122 }
 123
 124 dbus::ObjectPath FakeBluetoothGattDescriptorClient::ExposeDescriptor(
 125     const dbus::ObjectPath& characteristic_path,
 126     const std::string& uuid) {
 127   if (uuid != kClientCharacteristicConfigurationUUID) {
 128     VLOG(2) << "Unsupported UUID: " << uuid;
 129     return dbus::ObjectPath();
 130   }
 131
 132   // CCC descriptor is the only one supported at the moment.
 133   DCHECK(characteristic_path.IsValid());
 134   dbus::ObjectPath object_path(
 135       characteristic_path.value() + "/" +
 136       kClientCharacteristicConfigurationPathComponent);
 137   DCHECK(object_path.IsValid());
 138   PropertiesMap::const_iterator iter = properties_.find(object_path);
 139   if (iter != properties_.end()) {
 140     VLOG(1) << "Descriptor already exposed: " << object_path.value();
 141     return dbus::ObjectPath();
 142   }
 143
 144   Properties* properties = new Properties(base::Bind(
 145       &FakeBluetoothGattDescriptorClient::OnPropertyChanged,
 146       weak_ptr_factory_.GetWeakPtr(),
 147       object_path));
 148   properties->uuid.ReplaceValue(uuid);
 149   properties->characteristic.ReplaceValue(characteristic_path);
 150
 151   DescriptorData* data = new DescriptorData();
 152   data->properties.reset(properties);
 153
 154   data->value.push_back(1);  // Notifications enabled.
 155   data->value.push_back(0);
 156
 157   properties_[object_path] = data;
 158
 159   NotifyDescriptorAdded(object_path);
 160
 161   return object_path;
 162 }
 163
 164 void FakeBluetoothGattDescriptorClient::HideDescriptor(
 165     const dbus::ObjectPath& descriptor_path) {
 166   PropertiesMap::iterator iter = properties_.find(descriptor_path);
 167   if (iter == properties_.end()) {
 168     VLOG(1) << "Descriptor not exposed: " << descriptor_path.value();
 169     return;
 170   }
 171
 172   NotifyDescriptorRemoved(descriptor_path);
 173
 174   delete iter->second;
 175   properties_.erase(iter);
 176 }
 177
 178 void FakeBluetoothGattDescriptorClient::OnPropertyChanged(
 179     const dbus::ObjectPath& object_path,
 180     const std::string& property_name) {
 181   VLOG(2) << "Descriptor property changed: " << object_path.value()
 182           << ": " << property_name;
 183
 184   FOR_EACH_OBSERVER(BluetoothGattDescriptorClient::Observer, observers_,
 185                     GattDescriptorPropertyChanged(object_path, property_name));
 186 }
 187
 188 void FakeBluetoothGattDescriptorClient::NotifyDescriptorAdded(
 189     const dbus::ObjectPath& object_path) {
 190   FOR_EACH_OBSERVER(BluetoothGattDescriptorClient::Observer, observers_,
 191                     GattDescriptorAdded(object_path));
 192 }
 193
 194 void FakeBluetoothGattDescriptorClient::NotifyDescriptorRemoved(
 195     const dbus::ObjectPath& object_path) {
 196   FOR_EACH_OBSERVER(BluetoothGattDescriptorClient::Observer, observers_,
 197                     GattDescriptorRemoved(object_path));
 198 }
 199
 200 }  // namespace chromeos