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| 1 // Copyright (c) 2012 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 "chrome/browser/chromeos/dbus/bluetooth_node_client.h" | |
| 6 | |
| 7 #include <map> | |
| 8 | |
| 9 #include "base/bind.h" | |
| 10 #include "base/logging.h" | |
| 11 #include "base/stl_util.h" | |
| 12 #include "chrome/browser/chromeos/dbus/bluetooth_device_client.h" | |
| 13 #include "chrome/browser/chromeos/dbus/bluetooth_property.h" | |
| 14 #include "dbus/bus.h" | |
| 15 #include "dbus/message.h" | |
| 16 #include "dbus/object_path.h" | |
| 17 #include "dbus/object_proxy.h" | |
| 18 #include "third_party/cros_system_api/dbus/service_constants.h" | |
| 19 | |
| 20 namespace chromeos { | |
| 21 | |
| 22 BluetoothNodeClient::Properties::Properties(dbus::ObjectProxy* object_proxy, | |
| 23 PropertyChangedCallback callback) | |
| 24 : BluetoothPropertySet(object_proxy, | |
| 25 bluetooth_node::kBluetoothNodeInterface, | |
| 26 callback) { | |
| 27 RegisterProperty(bluetooth_node::kNameProperty, &name); | |
| 28 RegisterProperty(bluetooth_node::kDeviceProperty, &device); | |
| 29 } | |
| 30 | |
| 31 BluetoothNodeClient::Properties::~Properties() { | |
| 32 } | |
| 33 | |
| 34 | |
| 35 // The BluetoothNodeClient implementation used in production. | |
| 36 class BluetoothNodeClientImpl: public BluetoothNodeClient, | |
| 37 private BluetoothDeviceClient::Observer { | |
| 38 public: | |
| 39 BluetoothNodeClientImpl(dbus::Bus* bus, | |
| 40 BluetoothDeviceClient* device_client) | |
| 41 : weak_ptr_factory_(this), | |
| 42 bus_(bus) { | |
| 43 DVLOG(1) << "Creating BluetoothNodeClientImpl"; | |
| 44 | |
| 45 DCHECK(device_client); | |
| 46 device_client->AddObserver(this); | |
| 47 } | |
| 48 | |
| 49 virtual ~BluetoothNodeClientImpl() { | |
| 50 // Clean up Properties structures | |
| 51 for (ObjectMap::iterator iter = object_map_.begin(); | |
| 52 iter != object_map_.end(); ++iter) { | |
| 53 Object object = iter->second; | |
| 54 Properties* properties = object.second; | |
| 55 delete properties; | |
| 56 } | |
| 57 } | |
| 58 | |
| 59 // BluetoothNodeClient override. | |
| 60 virtual void AddObserver(BluetoothNodeClient::Observer* observer) | |
| 61 OVERRIDE { | |
| 62 DCHECK(observer); | |
| 63 observers_.AddObserver(observer); | |
| 64 } | |
| 65 | |
| 66 // BluetoothNodeClient override. | |
| 67 virtual void RemoveObserver(BluetoothNodeClient::Observer* observer) | |
| 68 OVERRIDE { | |
| 69 DCHECK(observer); | |
| 70 observers_.RemoveObserver(observer); | |
| 71 } | |
| 72 | |
| 73 // BluetoothNodeClient override. | |
| 74 virtual Properties* GetProperties(const dbus::ObjectPath& object_path) | |
| 75 OVERRIDE { | |
| 76 return GetObject(object_path).second; | |
| 77 } | |
| 78 | |
| 79 private: | |
| 80 // We maintain a collection of dbus object proxies and properties structures | |
| 81 // for each node binding. | |
| 82 typedef std::pair<dbus::ObjectProxy*, Properties*> Object; | |
| 83 typedef std::map<const dbus::ObjectPath, Object> ObjectMap; | |
| 84 ObjectMap object_map_; | |
| 85 | |
| 86 // BluetoothDeviceClient::Observer override. | |
| 87 virtual void NodeCreated(const dbus::ObjectPath& device_path, | |
| 88 const dbus::ObjectPath& object_path) OVERRIDE { | |
| 89 } | |
| 90 | |
| 91 // BluetoothDeviceClient::Observer override. | |
| 92 virtual void NodeRemoved(const dbus::ObjectPath& device_path, | |
| 93 const dbus::ObjectPath& object_path) OVERRIDE { | |
| 94 RemoveObject(object_path); | |
| 95 } | |
| 96 | |
| 97 // Ensures that we have an object proxy and properties structure for | |
| 98 // a node binding with object path |object_path|, creating it if not and | |
| 99 // storing it in our |object_map_| map. | |
| 100 Object GetObject(const dbus::ObjectPath& object_path) { | |
| 101 ObjectMap::iterator iter = object_map_.find(object_path); | |
| 102 if (iter != object_map_.end()) | |
| 103 return iter->second; | |
| 104 | |
| 105 // Create the object proxy. | |
| 106 DCHECK(bus_); | |
| 107 dbus::ObjectProxy* object_proxy = bus_->GetObjectProxy( | |
| 108 bluetooth_node::kBluetoothNodeServiceName, object_path); | |
| 109 | |
| 110 // Create the properties structure. | |
| 111 Properties* properties = new Properties( | |
| 112 object_proxy, | |
| 113 base::Bind(&BluetoothNodeClientImpl::OnPropertyChanged, | |
| 114 weak_ptr_factory_.GetWeakPtr(), object_path)); | |
| 115 | |
| 116 properties->ConnectSignals(); | |
| 117 properties->GetAll(); | |
| 118 | |
| 119 Object object = std::make_pair(object_proxy, properties); | |
| 120 object_map_[object_path] = object; | |
| 121 return object; | |
| 122 } | |
| 123 | |
| 124 // Removes the dbus object proxy and properties for the node binding with | |
| 125 // dbus object path |object_path| from our |object_map_| map. | |
| 126 void RemoveObject(const dbus::ObjectPath& object_path) { | |
| 127 ObjectMap::iterator iter = object_map_.find(object_path); | |
| 128 if (iter != object_map_.end()) { | |
| 129 // Clean up the Properties structure. | |
| 130 Object object = iter->second; | |
| 131 Properties* properties = object.second; | |
| 132 delete properties; | |
| 133 | |
| 134 object_map_.erase(iter); | |
| 135 } | |
| 136 } | |
| 137 | |
| 138 // Returns a pointer to the object proxy for |object_path|, creating | |
| 139 // it if necessary. | |
| 140 dbus::ObjectProxy* GetObjectProxy(const dbus::ObjectPath& object_path) { | |
| 141 return GetObject(object_path).first; | |
| 142 } | |
| 143 | |
| 144 // Called by BluetoothPropertySet when a property value is changed, | |
| 145 // either by result of a signal or response to a GetAll() or Get() | |
| 146 // call. Informs observers. | |
| 147 void OnPropertyChanged(const dbus::ObjectPath& object_path, | |
| 148 const std::string& property_name) { | |
| 149 FOR_EACH_OBSERVER(BluetoothNodeClient::Observer, observers_, | |
| 150 NodePropertyChanged(object_path, property_name)); | |
| 151 } | |
| 152 | |
| 153 // Weak pointer factory for generating 'this' pointers that might live longer | |
| 154 // than we do. | |
| 155 base::WeakPtrFactory<BluetoothNodeClientImpl> weak_ptr_factory_; | |
| 156 | |
| 157 dbus::Bus* bus_; | |
| 158 | |
| 159 // List of observers interested in event notifications from us. | |
| 160 ObserverList<BluetoothNodeClient::Observer> observers_; | |
| 161 | |
| 162 DISALLOW_COPY_AND_ASSIGN(BluetoothNodeClientImpl); | |
| 163 }; | |
| 164 | |
| 165 // The BluetoothNodeClient implementation used on Linux desktop, which does | |
| 166 // nothing. | |
| 167 class BluetoothNodeClientStubImpl : public BluetoothNodeClient { | |
| 168 public: | |
| 169 // BluetoothNodeClient override. | |
| 170 virtual void AddObserver(Observer* observer) OVERRIDE { | |
| 171 } | |
| 172 | |
| 173 // BluetoothNodeClient override. | |
| 174 virtual void RemoveObserver(Observer* observer) OVERRIDE { | |
| 175 } | |
| 176 | |
| 177 // BluetoothNodeClient override. | |
| 178 virtual Properties* GetProperties(const dbus::ObjectPath& object_path) | |
| 179 OVERRIDE { | |
| 180 VLOG(1) << "GetProperties: " << object_path.value(); | |
| 181 return NULL; | |
| 182 } | |
| 183 }; | |
| 184 | |
| 185 BluetoothNodeClient::BluetoothNodeClient() { | |
| 186 } | |
| 187 | |
| 188 BluetoothNodeClient::~BluetoothNodeClient() { | |
| 189 } | |
| 190 | |
| 191 BluetoothNodeClient* BluetoothNodeClient::Create( | |
| 192 DBusClientImplementationType type, | |
| 193 dbus::Bus* bus, | |
| 194 BluetoothDeviceClient* adapter_client) { | |
| 195 if (type == REAL_DBUS_CLIENT_IMPLEMENTATION) | |
| 196 return new BluetoothNodeClientImpl(bus, adapter_client); | |
| 197 DCHECK_EQ(STUB_DBUS_CLIENT_IMPLEMENTATION, type); | |
| 198 return new BluetoothNodeClientStubImpl(); | |
| 199 } | |
| 200 | |
| 201 } // namespace chromeos | |
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