cros: Extract TrayBluetoothHelper from SystemTrayDelegateChromeOS

chrome/browser/ui/ash/tray_bluetooth_helper.cc

+// Copyright 2017 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 "chrome/browser/ui/ash/tray_bluetooth_helper.h"
+
+#include "ash/common/system/tray/system_tray_notifier.h"
+#include "ash/common/wm_shell.h"
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/metrics/user_metrics.h"
+#include "chrome/browser/chromeos/bluetooth/bluetooth_pairing_dialog.h"
+#include "chrome/browser/ui/ash/system_tray_client.h"
+#include "chrome/browser/ui/ash/system_tray_delegate_chromeos.h"
+#include "device/bluetooth/bluetooth_adapter.h"
+#include "device/bluetooth/bluetooth_adapter_factory.h"
+#include "device/bluetooth/bluetooth_device.h"
+#include "device/bluetooth/bluetooth_discovery_session.h"
+
+using chromeos::BluetoothPairingDialog;
+
+namespace {
+
+void BluetoothSetDiscoveringError() {
+  LOG(ERROR) << "BluetoothSetDiscovering failed.";
+}
+
+void BluetoothDeviceConnectError(
+    device::BluetoothDevice::ConnectErrorCode error_code) {}
+
+ash::SystemTrayNotifier* GetSystemTrayNotifier() {
+  return ash::WmShell::Get()->system_tray_notifier();
+}
+
+}  // namespace
+
+TrayBluetoothHelper::TrayBluetoothHelper(
+    chromeos::SystemTrayDelegateChromeOS* system_tray_delegate)
+    : system_tray_delegate_(system_tray_delegate), weak_ptr_factory_(this) {}
+
+TrayBluetoothHelper::~TrayBluetoothHelper() {
+  if (adapter_)
+    adapter_->RemoveObserver(this);
+}
+
+void TrayBluetoothHelper::Initialize() {
+  device::BluetoothAdapterFactory::GetAdapter(
+      base::Bind(&TrayBluetoothHelper::InitializeOnAdapterReady,
+                 weak_ptr_factory_.GetWeakPtr()));
+}
+
+void TrayBluetoothHelper::InitializeOnAdapterReady(
+    scoped_refptr<device::BluetoothAdapter> adapter) {
+  adapter_ = adapter;
+  CHECK(adapter_);
+  adapter_->AddObserver(this);
+
+  // May be null in tests.
+  if (system_tray_delegate_)
+    system_tray_delegate_->InitializeOnAdapterReady();
+}
+
+void TrayBluetoothHelper::GetAvailableDevices(
+    std::vector<ash::BluetoothDeviceInfo>* list) {
+  device::BluetoothAdapter::DeviceList devices = adapter_->GetDevices();
+  for (device::BluetoothDevice* device : devices) {
+    ash::BluetoothDeviceInfo info;
+    info.address = device->GetAddress();
+    info.display_name = device->GetNameForDisplay();
+    info.connected = device->IsConnected();
+    info.connecting = device->IsConnecting();
+    info.paired = device->IsPaired();
+    info.device_type = device->GetDeviceType();
+    list->push_back(info);
+  }
+}
+
+void TrayBluetoothHelper::StartDiscovering() {
+  if (HasDiscoverySession()) {
+    LOG(WARNING) << "Already have active Bluetooth device discovery session.";
+    return;
+  }
+  VLOG(1) << "Requesting new Bluetooth device discovery session.";
+  should_run_discovery_ = true;
+  adapter_->StartDiscoverySession(
+      base::Bind(&TrayBluetoothHelper::OnStartDiscoverySession,
+                 weak_ptr_factory_.GetWeakPtr()),
+      base::Bind(&BluetoothSetDiscoveringError));
+}
+
+void TrayBluetoothHelper::StopDiscovering() {
+  should_run_discovery_ = false;
+  if (!HasDiscoverySession()) {
+    LOG(WARNING) << "No active Bluetooth device discovery session.";
+    return;
+  }
+  VLOG(1) << "Stopping Bluetooth device discovery session.";
+  discovery_session_->Stop(base::Bind(&base::DoNothing),
+                           base::Bind(&BluetoothSetDiscoveringError));
+}
+
+void TrayBluetoothHelper::ConnectToDevice(const std::string& address) {
+  device::BluetoothDevice* device = adapter_->GetDevice(address);
+  if (!device || device->IsConnecting() ||
+      (device->IsConnected() && device->IsPaired())) {
+    return;
+  }
+  if (device->IsPaired() && !device->IsConnectable())
+    return;
+  if (device->IsPaired() || !device->IsPairable()) {
+    base::RecordAction(
+        base::UserMetricsAction("StatusArea_Bluetooth_Connect_Known"));
+    device->Connect(NULL, base::Bind(&base::DoNothing),
+                    base::Bind(&BluetoothDeviceConnectError));
+    return;
+  }
+  // Show pairing dialog for the unpaired device.
+  // TODO(jamescook): Move into SystemTrayClient and wire up with mojo.
+  base::RecordAction(
+      base::UserMetricsAction("StatusArea_Bluetooth_Connect_Unknown"));
+  BluetoothPairingDialog* dialog = new BluetoothPairingDialog(device);
+  // The dialog deletes itself on close.
+  dialog->ShowInContainer(SystemTrayClient::GetDialogParentContainerId());
+}
+
+bool TrayBluetoothHelper::IsDiscovering() const {
+  return adapter_ && adapter_->IsDiscovering();
+}
+
+void TrayBluetoothHelper::ToggleEnabled() {
+  adapter_->SetPowered(!adapter_->IsPowered(), base::Bind(&base::DoNothing),
+                       base::Bind(&base::DoNothing));
+}
+
+bool TrayBluetoothHelper::GetAvailable() {
+  return adapter_ && adapter_->IsPresent();
+}
+
+bool TrayBluetoothHelper::GetEnabled() {
+  return adapter_ && adapter_->IsPowered();
+}
+
+bool TrayBluetoothHelper::HasDiscoverySession() {
+  return discovery_session_ && discovery_session_->IsActive();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// BluetoothAdapter::Observer:
+
+void TrayBluetoothHelper::AdapterPresentChanged(
+    device::BluetoothAdapter* adapter,
+    bool present) {
+  GetSystemTrayNotifier()->NotifyRefreshBluetooth();
+}
+
+void TrayBluetoothHelper::AdapterPoweredChanged(
+    device::BluetoothAdapter* adapter,
+    bool powered) {
+  GetSystemTrayNotifier()->NotifyRefreshBluetooth();
+}
+
+void TrayBluetoothHelper::AdapterDiscoveringChanged(
+    device::BluetoothAdapter* adapter,
+    bool discovering) {
+  GetSystemTrayNotifier()->NotifyBluetoothDiscoveringChanged();
+}
+
+void TrayBluetoothHelper::DeviceAdded(device::BluetoothAdapter* adapter,
+                                      device::BluetoothDevice* device) {
+  GetSystemTrayNotifier()->NotifyRefreshBluetooth();
+}
+
+void TrayBluetoothHelper::DeviceChanged(device::BluetoothAdapter* adapter,
+                                        device::BluetoothDevice* device) {
+  GetSystemTrayNotifier()->NotifyRefreshBluetooth();
+}
+
+void TrayBluetoothHelper::DeviceRemoved(device::BluetoothAdapter* adapter,
+                                        device::BluetoothDevice* device) {
+  GetSystemTrayNotifier()->NotifyRefreshBluetooth();
+}
+
+void TrayBluetoothHelper::OnStartDiscoverySession(
+    std::unique_ptr<device::BluetoothDiscoverySession> discovery_session) {
+  // If the discovery session was returned after a request to stop discovery
+  // (e.g. the user dismissed the Bluetooth detailed view before the call
+  // returned), don't claim the discovery session and let it clean up.
+  if (!should_run_discovery_)
+    return;
+  VLOG(1) << "Claiming new Bluetooth device discovery session.";
+  discovery_session_ = std::move(discovery_session);
+  GetSystemTrayNotifier()->NotifyBluetoothDiscoveringChanged();
+}