Bluetooth: implement BlueZ 5 backend for Chrome OS

chromeos/dbus/fake_bluetooth_adapter_client.cc

+// Copyright (c) 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/fake_bluetooth_adapter_client.h"
+
+#include "base/bind.h"
+#include "base/logging.h"
+#include "base/message_loop.h"
+#include "base/time.h"
+#include "chromeos/dbus/dbus_thread_manager.h"
+#include "chromeos/dbus/fake_bluetooth_device_client.h"
+#include "dbus/object_path.h"
+#include "third_party/cros_system_api/dbus/service_constants.h"
+
+namespace {
+
+// Amount of time to wait after a command before performing it.
+const int kCommandEffectsTimeMs = 500;
+
+}
+
+namespace chromeos {
+
+const char FakeBluetoothAdapterClient::kAdapterPath[] =
+    "/fake/hci0";
+const char FakeBluetoothAdapterClient::kAdapterName[] =
+    "Fake Adapter";
+const char FakeBluetoothAdapterClient::kAdapterAddress[] =
+    "01:1a:2b:1a:2b:03";
+
+const char FakeBluetoothAdapterClient::kSecondAdapterPath[] =
+    "/fake/hci1";
+const char FakeBluetoothAdapterClient::kSecondAdapterName[] =
+    "Second Fake Adapter";
+const char FakeBluetoothAdapterClient::kSecondAdapterAddress[] =
+    "00:de:51:10:01:00";
+
+FakeBluetoothAdapterClient::Properties::Properties(
+    const PropertyChangedCallback& callback)
+    : ExperimentalBluetoothAdapterClient::Properties(
+        NULL,
+        bluetooth_adapter::kExperimentalBluetoothAdapterInterface,
+        callback) {
+}
+
+FakeBluetoothAdapterClient::Properties::~Properties() {
+}
+
+void FakeBluetoothAdapterClient::Properties::Get(
+    dbus::PropertyBase* property,
+    dbus::PropertySet::GetCallback callback) {
+  VLOG(1) << "Get " << property->name();
+  callback.Run(false);
+}
+
+void FakeBluetoothAdapterClient::Properties::GetAll() {
+  VLOG(1) << "GetAll";
+}
+
+void FakeBluetoothAdapterClient::Properties::Set(
+    dbus::PropertyBase *property,
+    dbus::PropertySet::SetCallback callback) {
+  VLOG(1) << "Set " << property->name();
+  if (property->name() == powered.name() || property->name() == alias.name()) {
+    callback.Run(true);
+    property->ReplaceValueWithSetValue();
+    NotifyPropertyChanged(property->name());
+  } else {
+    callback.Run(false);
+  }
+}
+
+
+FakeBluetoothAdapterClient::FakeBluetoothAdapterClient()
+    : visible_(true),
+      second_visible_(false),
+      discovering_count_(0) {
+  properties_.reset(new Properties(base::Bind(
+      &FakeBluetoothAdapterClient::OnPropertyChanged,
+      base::Unretained(this))));
+
+  properties_->address.ReplaceValue(kAdapterAddress);
+  properties_->name.ReplaceValue("Fake Adapter (Name)");
+  properties_->alias.ReplaceValue(kAdapterName);
+  properties_->pairable.ReplaceValue(true);
+
+  second_properties_.reset(new Properties(base::Bind(
+      &FakeBluetoothAdapterClient::OnPropertyChanged,
+      base::Unretained(this))));
+
+  second_properties_->address.ReplaceValue(kSecondAdapterAddress);
+  second_properties_->name.ReplaceValue("Second Fake Adapter (Name)");
+  second_properties_->alias.ReplaceValue(kSecondAdapterName);
+  second_properties_->pairable.ReplaceValue(true);
+}
+
+FakeBluetoothAdapterClient::~FakeBluetoothAdapterClient() {
+}
+
+void FakeBluetoothAdapterClient::AddObserver(Observer* observer) {
+  observers_.AddObserver(observer);
+}
+
+void FakeBluetoothAdapterClient::RemoveObserver(Observer* observer) {
+  observers_.RemoveObserver(observer);
+}
+
+std::vector<dbus::ObjectPath> FakeBluetoothAdapterClient::GetAdapters() {
+  std::vector<dbus::ObjectPath> object_paths;
+  if (visible_)
+    object_paths.push_back(dbus::ObjectPath(kAdapterPath));
+  if (second_visible_)
+    object_paths.push_back(dbus::ObjectPath(kSecondAdapterPath));
+  return object_paths;
+}
+
+FakeBluetoothAdapterClient::Properties*
+FakeBluetoothAdapterClient::GetProperties(const dbus::ObjectPath& object_path) {
+  if (object_path == dbus::ObjectPath(kAdapterPath))
+    return properties_.get();
+  else if (object_path == dbus::ObjectPath(kSecondAdapterPath))
+    return second_properties_.get();
+  else
+    return NULL;
+}
+
+void FakeBluetoothAdapterClient::StartDiscovery(
+    const dbus::ObjectPath& object_path,
+    const base::Closure& callback,
+    const ErrorCallback& error_callback) {
+  if (object_path != dbus::ObjectPath(kAdapterPath)) {
+    error_callback.Run(kNoResponseError, "");
+    return;
+  }
+
+  ++discovering_count_;
+  VLOG(1) << "StartDiscovery: " << object_path.value() << ", "
+          << "count is now " << discovering_count_;
+  callback.Run();
+
+  if (discovering_count_ == 1) {
+    properties_->discovering.ReplaceValue(true);
+    properties_->NotifyPropertyChanged(properties_->discovering.name());
+
+    FakeBluetoothDeviceClient* device_client =
+        static_cast<FakeBluetoothDeviceClient*>(
+            DBusThreadManager::Get()->GetExperimentalBluetoothDeviceClient());
+    device_client->BeginDiscoverySimulation(dbus::ObjectPath(kAdapterPath));
+  }
+}
+
+void FakeBluetoothAdapterClient::StopDiscovery(
+    const dbus::ObjectPath& object_path,
+    const base::Closure& callback,
+    const ErrorCallback& error_callback) {
+  if (object_path != dbus::ObjectPath(kAdapterPath)) {
+    error_callback.Run(kNoResponseError, "");
+    return;
+  }
+
+  if (!discovering_count_) {
+    LOG(WARNING) << "StopDiscovery called when not discovering";
+    error_callback.Run(kNoResponseError, "");
+    return;
+  }
+
+  --discovering_count_;
+  VLOG(1) << "StopDiscovery: " << object_path.value() << ", "
+          << "count is now " << discovering_count_;
+  callback.Run();
+
+  if (discovering_count_ == 0) {
+    FakeBluetoothDeviceClient* device_client =
+        static_cast<FakeBluetoothDeviceClient*>(
+            DBusThreadManager::Get()->GetExperimentalBluetoothDeviceClient());
+    device_client->EndDiscoverySimulation(dbus::ObjectPath(kAdapterPath));
+
+    properties_->discovering.ReplaceValue(false);
+    properties_->NotifyPropertyChanged(properties_->discovering.name());
+  }
+}
+
+void FakeBluetoothAdapterClient::RemoveDevice(
+    const dbus::ObjectPath& object_path,
+    const dbus::ObjectPath& device_path,
+    const base::Closure& callback,
+    const ErrorCallback& error_callback) {
+  if (object_path != dbus::ObjectPath(kAdapterPath)) {
+    error_callback.Run(kNoResponseError, "");
+    return;
+  }
+
+  VLOG(1) << "RemoveDevice: " << object_path.value()
+          << " " << device_path.value();
+  callback.Run();
+
+  FakeBluetoothDeviceClient* device_client =
+      static_cast<FakeBluetoothDeviceClient*>(
+          DBusThreadManager::Get()->GetExperimentalBluetoothDeviceClient());
+  device_client->RemoveDevice(dbus::ObjectPath(kAdapterPath), device_path);
+}
+
+void FakeBluetoothAdapterClient::SetVisible(
+    bool visible) {
+  if (visible && !visible_) {
+    // Adapter becoming visible
+    visible_ = visible;
+
+    FOR_EACH_OBSERVER(ExperimentalBluetoothAdapterClient::Observer, observers_,
+                      AdapterAdded(dbus::ObjectPath(kAdapterPath)));
+
+  } else if (visible_ && !visible) {
+    // Adapter becoming invisible
+    visible_ = visible;
+
+    FOR_EACH_OBSERVER(ExperimentalBluetoothAdapterClient::Observer, observers_,
+                      AdapterRemoved(dbus::ObjectPath(kAdapterPath)));
+  }
+}
+
+void FakeBluetoothAdapterClient::SetSecondVisible(
+    bool visible) {
+  if (visible && !second_visible_) {
+    // Second adapter becoming visible
+    second_visible_ = visible;
+
+    FOR_EACH_OBSERVER(ExperimentalBluetoothAdapterClient::Observer, observers_,
+                      AdapterAdded(dbus::ObjectPath(kSecondAdapterPath)));
+
+  } else if (second_visible_ && !visible) {
+    // Second adapter becoming invisible
+    second_visible_ = visible;
+
+    FOR_EACH_OBSERVER(ExperimentalBluetoothAdapterClient::Observer, observers_,
+                      AdapterRemoved(dbus::ObjectPath(kSecondAdapterPath)));
+  }
+}
+
+void FakeBluetoothAdapterClient::OnPropertyChanged(
+    const std::string& property_name) {
+  if (property_name == properties_->powered.name() &&
+      !properties_->powered.value()) {
+    VLOG(1) << "Adapter powered off";
+
+    if (discovering_count_) {
+      discovering_count_ = 0;
+      properties_->discovering.ReplaceValue(false);
+      properties_->NotifyPropertyChanged(properties_->discovering.name());
+    }
+  }
+
+  FOR_EACH_OBSERVER(ExperimentalBluetoothAdapterClient::Observer, observers_,
+                    AdapterPropertyChanged(dbus::ObjectPath(kAdapterPath),
+                                           property_name));
+}
+
+}  // namespace chromeos