src/chromeos/dbus/bluetooth_agent_manager_client.cc

   1 // Copyright 2013 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/bluetooth_agent_manager_client.h"
   6
   7 #include "base/bind.h"
   8 #include "base/logging.h"
   9 #include "dbus/bus.h"
  10 #include "dbus/message.h"
  11 #include "dbus/object_path.h"
  12 #include "dbus/object_proxy.h"
  13 #include "third_party/cros_system_api/dbus/service_constants.h"
  14
  15 namespace chromeos {
  16
  17 const char BluetoothAgentManagerClient::kNoResponseError[] =
  18     "org.chromium.Error.NoResponse";
  19
  20 // The BluetoothAgentManagerClient implementation used in production.
  21 class BluetoothAgentManagerClientImpl
  22     : public BluetoothAgentManagerClient {
  23  public:
  24   BluetoothAgentManagerClientImpl() : weak_ptr_factory_(this) {}
  25
  26   virtual ~BluetoothAgentManagerClientImpl() {
  27   }
  28
  29   // BluetoothAgentManagerClient override.
  30   virtual void RegisterAgent(const dbus::ObjectPath& agent_path,
  31                              const std::string& capability,
  32                              const base::Closure& callback,
  33                              const ErrorCallback& error_callback) override {
  34     dbus::MethodCall method_call(
  35     bluetooth_agent_manager::kBluetoothAgentManagerInterface,
  36     bluetooth_agent_manager::kRegisterAgent);
  37
  38     dbus::MessageWriter writer(&method_call);
  39     writer.AppendObjectPath(agent_path);
  40     writer.AppendString(capability);
  41
  42     object_proxy_->CallMethodWithErrorCallback(
  43         &method_call,
  44         dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
  45         base::Bind(&BluetoothAgentManagerClientImpl::OnSuccess,
  46                    weak_ptr_factory_.GetWeakPtr(), callback),
  47         base::Bind(&BluetoothAgentManagerClientImpl::OnError,
  48                    weak_ptr_factory_.GetWeakPtr(), error_callback));
  49   }
  50
  51   // BluetoothAgentManagerClient override.
  52   virtual void UnregisterAgent(const dbus::ObjectPath& agent_path,
  53                                const base::Closure& callback,
  54                                const ErrorCallback& error_callback) override {
  55     dbus::MethodCall method_call(
  56         bluetooth_agent_manager::kBluetoothAgentManagerInterface,
  57         bluetooth_agent_manager::kUnregisterAgent);
  58
  59     dbus::MessageWriter writer(&method_call);
  60     writer.AppendObjectPath(agent_path);
  61
  62     object_proxy_->CallMethodWithErrorCallback(
  63         &method_call,
  64         dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
  65         base::Bind(&BluetoothAgentManagerClientImpl::OnSuccess,
  66                    weak_ptr_factory_.GetWeakPtr(), callback),
  67         base::Bind(&BluetoothAgentManagerClientImpl::OnError,
  68                    weak_ptr_factory_.GetWeakPtr(), error_callback));
  69   }
  70
  71
  72   // BluetoothAgentManagerClient override.
  73   virtual void RequestDefaultAgent(const dbus::ObjectPath& agent_path,
  74                                    const base::Closure& callback,
  75                                    const ErrorCallback& error_callback)
  76       override {
  77     dbus::MethodCall method_call(
  78         bluetooth_agent_manager::kBluetoothAgentManagerInterface,
  79         bluetooth_agent_manager::kRequestDefaultAgent);
  80
  81     dbus::MessageWriter writer(&method_call);
  82     writer.AppendObjectPath(agent_path);
  83
  84     object_proxy_->CallMethodWithErrorCallback(
  85         &method_call,
  86         dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
  87         base::Bind(&BluetoothAgentManagerClientImpl::OnSuccess,
  88                    weak_ptr_factory_.GetWeakPtr(), callback),
  89         base::Bind(&BluetoothAgentManagerClientImpl::OnError,
  90                    weak_ptr_factory_.GetWeakPtr(), error_callback));
  91   }
  92
  93  protected:
  94   virtual void Init(dbus::Bus* bus) override {
  95     DCHECK(bus);
  96     object_proxy_ = bus->GetObjectProxy(
  97         bluetooth_agent_manager::kBluetoothAgentManagerServiceName,
  98         dbus::ObjectPath(
  99             bluetooth_agent_manager::kBluetoothAgentManagerServicePath));
 100   }
 101
 102  private:
 103   // Called when a response for successful method call is received.
 104   void OnSuccess(const base::Closure& callback,
 105                  dbus::Response* response) {
 106     DCHECK(response);
 107     callback.Run();
 108   }
 109
 110   // Called when a response for a failed method call is received.
 111   void OnError(const ErrorCallback& error_callback,
 112                dbus::ErrorResponse* response) {
 113     // Error response has optional error message argument.
 114     std::string error_name;
 115     std::string error_message;
 116     if (response) {
 117       dbus::MessageReader reader(response);
 118       error_name = response->GetErrorName();
 119       reader.PopString(&error_message);
 120     } else {
 121       error_name = kNoResponseError;
 122       error_message = "";
 123     }
 124     error_callback.Run(error_name, error_message);
 125   }
 126
 127   dbus::ObjectProxy* object_proxy_;
 128
 129   // Weak pointer factory for generating 'this' pointers that might live longer
 130   // than we do.
 131   // Note: This should remain the last member so it'll be destroyed and
 132   // invalidate its weak pointers before any other members are destroyed.
 133   base::WeakPtrFactory<BluetoothAgentManagerClientImpl>
 134       weak_ptr_factory_;
 135
 136   DISALLOW_COPY_AND_ASSIGN(BluetoothAgentManagerClientImpl);
 137 };
 138
 139 BluetoothAgentManagerClient::BluetoothAgentManagerClient() {
 140 }
 141
 142 BluetoothAgentManagerClient::~BluetoothAgentManagerClient() {
 143 }
 144
 145 BluetoothAgentManagerClient* BluetoothAgentManagerClient::Create() {
 146   return new BluetoothAgentManagerClientImpl();
 147 }
 148
 149 }  // namespace chromeos