1 files changed, 378 insertions, 0 deletions
diff --git a/chromeos/dbus/bluetooth_device_client.cc b/chromeos/dbus/bluetooth_device_client.cc
new file mode 100644
index 0000000..7b1d590
--- /dev/null
+++ b/chromeos/dbus/bluetooth_device_client.cc
@@ -0,0 +1,378 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chromeos/dbus/bluetooth_device_client.h"
+
+#include "base/bind.h"
+#include "base/logging.h"
+#include "base/stl_util.h"
+#include "dbus/bus.h"
+#include "dbus/message.h"
+#include "dbus/object_manager.h"
+#include "dbus/object_proxy.h"
+#include "third_party/cros_system_api/dbus/service_constants.h"
+
+namespace chromeos {
+
+namespace {
+
+// Value returned for the the RSSI or TX power if it cannot be read.
+const int kUnknownPower = 127;
+
+}  // namespace
+
+const char BluetoothDeviceClient::kNoResponseError[] =
+    "org.chromium.Error.NoResponse";
+const char BluetoothDeviceClient::kUnknownDeviceError[] =
+    "org.chromium.Error.UnknownDevice";
+
+BluetoothDeviceClient::Properties::Properties(
+    dbus::ObjectProxy* object_proxy,
+    const std::string& interface_name,
+    const PropertyChangedCallback& callback)
+    : dbus::PropertySet(object_proxy, interface_name, callback) {
+  RegisterProperty(bluetooth_device::kAddressProperty, &address);
+  RegisterProperty(bluetooth_device::kNameProperty, &name);
+  RegisterProperty(bluetooth_device::kIconProperty, &icon);
+  RegisterProperty(bluetooth_device::kClassProperty, &bluetooth_class);
+  RegisterProperty(bluetooth_device::kAppearanceProperty, &appearance);
+  RegisterProperty(bluetooth_device::kUUIDsProperty, &uuids);
+  RegisterProperty(bluetooth_device::kPairedProperty, &paired);
+  RegisterProperty(bluetooth_device::kConnectedProperty, &connected);
+  RegisterProperty(bluetooth_device::kTrustedProperty, &trusted);
+  RegisterProperty(bluetooth_device::kBlockedProperty, &blocked);
+  RegisterProperty(bluetooth_device::kAliasProperty, &alias);
+  RegisterProperty(bluetooth_device::kAdapterProperty, &adapter);
+  RegisterProperty(bluetooth_device::kLegacyPairingProperty, &legacy_pairing);
+  RegisterProperty(bluetooth_device::kModaliasProperty, &modalias);
+  RegisterProperty(bluetooth_device::kRSSIProperty, &rssi);
+  RegisterProperty(bluetooth_device::kTxPowerProperty, &tx_power);
+}
+
+BluetoothDeviceClient::Properties::~Properties() {}
+
+// The BluetoothDeviceClient implementation used in production.
+class BluetoothDeviceClientImpl : public BluetoothDeviceClient,
+                                  public dbus::ObjectManager::Interface {
+ public:
+  BluetoothDeviceClientImpl()
+      : object_manager_(NULL), weak_ptr_factory_(this) {}
+
+  ~BluetoothDeviceClientImpl() override {
+    object_manager_->UnregisterInterface(
+        bluetooth_device::kBluetoothDeviceInterface);
+  }
+
+  // BluetoothDeviceClient override.
+  void AddObserver(BluetoothDeviceClient::Observer* observer) override {
+    DCHECK(observer);
+    observers_.AddObserver(observer);
+  }
+
+  // BluetoothDeviceClient override.
+  void RemoveObserver(BluetoothDeviceClient::Observer* observer) override {
+    DCHECK(observer);
+    observers_.RemoveObserver(observer);
+  }
+
+  // dbus::ObjectManager::Interface override.
+  dbus::PropertySet* CreateProperties(
+      dbus::ObjectProxy* object_proxy,
+      const dbus::ObjectPath& object_path,
+      const std::string& interface_name) override {
+    Properties* properties =
+        new Properties(object_proxy, interface_name,
+                       base::Bind(&BluetoothDeviceClientImpl::OnPropertyChanged,
+                                  weak_ptr_factory_.GetWeakPtr(), object_path));
+    return static_cast<dbus::PropertySet*>(properties);
+  }
+
+  // BluetoothDeviceClient override.
+  std::vector<dbus::ObjectPath> GetDevicesForAdapter(
+      const dbus::ObjectPath& adapter_path) override {
+    std::vector<dbus::ObjectPath> object_paths, device_paths;
+    device_paths = object_manager_->GetObjectsWithInterface(
+        bluetooth_device::kBluetoothDeviceInterface);
+    for (std::vector<dbus::ObjectPath>::iterator iter = device_paths.begin();
+         iter != device_paths.end(); ++iter) {
+      Properties* properties = GetProperties(*iter);
+      if (properties->adapter.value() == adapter_path)
+        object_paths.push_back(*iter);
+    }
+    return object_paths;
+  }
+
+  // BluetoothDeviceClient override.
+  Properties* GetProperties(const dbus::ObjectPath& object_path) override {
+    return static_cast<Properties*>(object_manager_->GetProperties(
+        object_path, bluetooth_device::kBluetoothDeviceInterface));
+  }
+
+  // BluetoothDeviceClient override.
+  void Connect(const dbus::ObjectPath& object_path,
+               const base::Closure& callback,
+               const ErrorCallback& error_callback) override {
+    dbus::MethodCall method_call(bluetooth_device::kBluetoothDeviceInterface,
+                                 bluetooth_device::kConnect);
+
+    dbus::ObjectProxy* object_proxy =
+        object_manager_->GetObjectProxy(object_path);
+    if (!object_proxy) {
+      error_callback.Run(kUnknownDeviceError, "");
+      return;
+    }
+
+    // Connect may take an arbitrary length of time, so use no timeout.
+    object_proxy->CallMethodWithErrorCallback(
+        &method_call, dbus::ObjectProxy::TIMEOUT_INFINITE,
+        base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
+                   weak_ptr_factory_.GetWeakPtr(), callback),
+        base::Bind(&BluetoothDeviceClientImpl::OnError,
+                   weak_ptr_factory_.GetWeakPtr(), error_callback));
+  }
+
+  // BluetoothDeviceClient override.
+  void Disconnect(const dbus::ObjectPath& object_path,
+                  const base::Closure& callback,
+                  const ErrorCallback& error_callback) override {
+    dbus::MethodCall method_call(bluetooth_device::kBluetoothDeviceInterface,
+                                 bluetooth_device::kDisconnect);
+
+    dbus::ObjectProxy* object_proxy =
+        object_manager_->GetObjectProxy(object_path);
+    if (!object_proxy) {
+      error_callback.Run(kUnknownDeviceError, "");
+      return;
+    }
+
+    object_proxy->CallMethodWithErrorCallback(
+        &method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
+        base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
+                   weak_ptr_factory_.GetWeakPtr(), callback),
+        base::Bind(&BluetoothDeviceClientImpl::OnError,
+                   weak_ptr_factory_.GetWeakPtr(), error_callback));
+  }
+
+  // BluetoothDeviceClient override.
+  void ConnectProfile(const dbus::ObjectPath& object_path,
+                      const std::string& uuid,
+                      const base::Closure& callback,
+                      const ErrorCallback& error_callback) override {
+    dbus::MethodCall method_call(bluetooth_device::kBluetoothDeviceInterface,
+                                 bluetooth_device::kConnectProfile);
+
+    dbus::MessageWriter writer(&method_call);
+    writer.AppendString(uuid);
+
+    dbus::ObjectProxy* object_proxy =
+        object_manager_->GetObjectProxy(object_path);
+    if (!object_proxy) {
+      error_callback.Run(kUnknownDeviceError, "");
+      return;
+    }
+
+    // Connect may take an arbitrary length of time, so use no timeout.
+    object_proxy->CallMethodWithErrorCallback(
+        &method_call, dbus::ObjectProxy::TIMEOUT_INFINITE,
+        base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
+                   weak_ptr_factory_.GetWeakPtr(), callback),
+        base::Bind(&BluetoothDeviceClientImpl::OnError,
+                   weak_ptr_factory_.GetWeakPtr(), error_callback));
+  }
+
+  // BluetoothDeviceClient override.
+  void DisconnectProfile(const dbus::ObjectPath& object_path,
+                         const std::string& uuid,
+                         const base::Closure& callback,
+                         const ErrorCallback& error_callback) override {
+    dbus::MethodCall method_call(bluetooth_device::kBluetoothDeviceInterface,
+                                 bluetooth_device::kDisconnectProfile);
+
+    dbus::MessageWriter writer(&method_call);
+    writer.AppendString(uuid);
+
+    dbus::ObjectProxy* object_proxy =
+        object_manager_->GetObjectProxy(object_path);
+    if (!object_proxy) {
+      error_callback.Run(kUnknownDeviceError, "");
+      return;
+    }
+
+    object_proxy->CallMethodWithErrorCallback(
+        &method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
+        base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
+                   weak_ptr_factory_.GetWeakPtr(), callback),
+        base::Bind(&BluetoothDeviceClientImpl::OnError,
+                   weak_ptr_factory_.GetWeakPtr(), error_callback));
+  }
+
+  // BluetoothDeviceClient override.
+  void Pair(const dbus::ObjectPath& object_path,
+            const base::Closure& callback,
+            const ErrorCallback& error_callback) override {
+    dbus::MethodCall method_call(bluetooth_device::kBluetoothDeviceInterface,
+                                 bluetooth_device::kPair);
+
+    dbus::ObjectProxy* object_proxy =
+        object_manager_->GetObjectProxy(object_path);
+    if (!object_proxy) {
+      error_callback.Run(kUnknownDeviceError, "");
+      return;
+    }
+
+    // Pairing may take an arbitrary length of time, so use no timeout.
+    object_proxy->CallMethodWithErrorCallback(
+        &method_call, dbus::ObjectProxy::TIMEOUT_INFINITE,
+        base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
+                   weak_ptr_factory_.GetWeakPtr(), callback),
+        base::Bind(&BluetoothDeviceClientImpl::OnError,
+                   weak_ptr_factory_.GetWeakPtr(), error_callback));
+  }
+
+  // BluetoothDeviceClient override.
+  void CancelPairing(const dbus::ObjectPath& object_path,
+                     const base::Closure& callback,
+                     const ErrorCallback& error_callback) override {
+    dbus::MethodCall method_call(bluetooth_device::kBluetoothDeviceInterface,
+                                 bluetooth_device::kCancelPairing);
+
+    dbus::ObjectProxy* object_proxy =
+        object_manager_->GetObjectProxy(object_path);
+    if (!object_proxy) {
+      error_callback.Run(kUnknownDeviceError, "");
+      return;
+    }
+    object_proxy->CallMethodWithErrorCallback(
+        &method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
+        base::Bind(&BluetoothDeviceClientImpl::OnSuccess,
+                   weak_ptr_factory_.GetWeakPtr(), callback),
+        base::Bind(&BluetoothDeviceClientImpl::OnError,
+                   weak_ptr_factory_.GetWeakPtr(), error_callback));
+  }
+
+  // BluetoothDeviceClient override.
+  void GetConnInfo(const dbus::ObjectPath& object_path,
+                   const ConnInfoCallback& callback,
+                   const ErrorCallback& error_callback) override {
+    dbus::MethodCall method_call(
+        bluetooth_plugin_device::kBluetoothPluginInterface,
+        bluetooth_plugin_device::kGetConnInfo);
+
+    dbus::ObjectProxy* object_proxy =
+        object_manager_->GetObjectProxy(object_path);
+    if (!object_proxy) {
+      error_callback.Run(kUnknownDeviceError, "");
+      return;
+    }
+    object_proxy->CallMethodWithErrorCallback(
+        &method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
+        base::Bind(&BluetoothDeviceClientImpl::OnGetConnInfoSuccess,
+                   weak_ptr_factory_.GetWeakPtr(), callback),
+        base::Bind(&BluetoothDeviceClientImpl::OnError,
+                   weak_ptr_factory_.GetWeakPtr(), error_callback));
+  }
+
+ protected:
+  void Init(dbus::Bus* bus) override {
+    object_manager_ = bus->GetObjectManager(
+        bluetooth_object_manager::kBluetoothObjectManagerServiceName,
+        dbus::ObjectPath(
+            bluetooth_object_manager::kBluetoothObjectManagerServicePath));
+    object_manager_->RegisterInterface(
+        bluetooth_device::kBluetoothDeviceInterface, this);
+  }
+
+ private:
+  // Called by dbus::ObjectManager when an object with the device interface
+  // is created. Informs observers.
+  void ObjectAdded(const dbus::ObjectPath& object_path,
+                   const std::string& interface_name) override {
+    FOR_EACH_OBSERVER(BluetoothDeviceClient::Observer, observers_,
+                      DeviceAdded(object_path));
+  }
+
+  // Called by dbus::ObjectManager when an object with the device interface
+  // is removed. Informs observers.
+  void ObjectRemoved(const dbus::ObjectPath& object_path,
+                     const std::string& interface_name) override {
+    FOR_EACH_OBSERVER(BluetoothDeviceClient::Observer, observers_,
+                      DeviceRemoved(object_path));
+  }
+
+  // Called by BluetoothPropertySet when a property value is changed,
+  // either by result of a signal or response to a GetAll() or Get()
+  // call. Informs observers.
+  void OnPropertyChanged(const dbus::ObjectPath& object_path,
+                         const std::string& property_name) {
+    FOR_EACH_OBSERVER(BluetoothDeviceClient::Observer, observers_,
+                      DevicePropertyChanged(object_path, property_name));
+  }
+
+  // Called when a response for successful method call is received.
+  void OnSuccess(const base::Closure& callback, dbus::Response* response) {
+    DCHECK(response);
+    callback.Run();
+  }
+
+  // Called when a response for the GetConnInfo method is received.
+  void OnGetConnInfoSuccess(const ConnInfoCallback& callback,
+                            dbus::Response* response) {
+    int16 rssi = kUnknownPower;
+    int16 transmit_power = kUnknownPower;
+    int16 max_transmit_power = kUnknownPower;
+
+    if (!response) {
+      LOG(ERROR) << "GetConnInfo succeeded, but no response received.";
+      callback.Run(rssi, transmit_power, max_transmit_power);
+      return;
+    }
+
+    dbus::MessageReader reader(response);
+    if (!reader.PopInt16(&rssi) || !reader.PopInt16(&transmit_power) ||
+        !reader.PopInt16(&max_transmit_power)) {
+      LOG(ERROR) << "Arguments for GetConnInfo invalid.";
+    }
+    callback.Run(rssi, transmit_power, max_transmit_power);
+  }
+
+  // Called when a response for a failed method call is received.
+  void OnError(const ErrorCallback& error_callback,
+               dbus::ErrorResponse* response) {
+    // Error response has optional error message argument.
+    std::string error_name;
+    std::string error_message;
+    if (response) {
+      dbus::MessageReader reader(response);
+      error_name = response->GetErrorName();
+      reader.PopString(&error_message);
+    } else {
+      error_name = kNoResponseError;
+      error_message = "";
+    }
+    error_callback.Run(error_name, error_message);
+  }
+
+  dbus::ObjectManager* object_manager_;
+
+  // List of observers interested in event notifications from us.
+  base::ObserverList<BluetoothDeviceClient::Observer> observers_;
+
+  // Weak pointer factory for generating 'this' pointers that might live longer
+  // than we do.
+  // Note: This should remain the last member so it'll be destroyed and
+  // invalidate its weak pointers before any other members are destroyed.
+  base::WeakPtrFactory<BluetoothDeviceClientImpl> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothDeviceClientImpl);
+};
+
+BluetoothDeviceClient::BluetoothDeviceClient() {}
+
+BluetoothDeviceClient::~BluetoothDeviceClient() {}
+
+BluetoothDeviceClient* BluetoothDeviceClient::Create() {
+  return new BluetoothDeviceClientImpl();
+}
+
+}  // namespace chromeos