Move BluetoothDetailedView to a separate file.

This CL moves BluetoothDetailedView from tray_bluetooth.cc to
a dedicated bluetooth_detailed_view.cc.

TrayBluetooth will be removed with UnifiedSystemTray, but
BluetoothDetailedView will remain.

TEST=ash_unittests, manual
BUG=none

Change-Id: I759e4882d3b5aadbfaf274127960a1795a207696
Reviewed-on: https://chromium-review.googlesource.com/1073170Reviewed-by: Yoshiki Iguchi <yoshiki@chromium.org>
Commit-Queue: Tetsui Ohkubo <tetsui@chromium.org>
Cr-Commit-Position: refs/heads/master@{#563119}

ash/BUILD.gn

@@ -562,6 +562,8 @@ component("ash") {
     "system/audio/unified_volume_view.h",
     "system/audio/volume_view.cc",
     "system/audio/volume_view.h",
+    "system/bluetooth/bluetooth_detailed_view.cc",
+    "system/bluetooth/bluetooth_detailed_view.h",
     "system/bluetooth/bluetooth_feature_pod_controller.cc",
     "system/bluetooth/bluetooth_feature_pod_controller.h",
     "system/bluetooth/bluetooth_notification_controller.cc",

ash/system/bluetooth/bluetooth_detailed_view.h

+// Copyright 2018 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.
+
+#ifndef ASH_SYSTEM_BLUETOOTH_BLUETOOTH_DETAILED_VIEW_H_
+#define ASH_SYSTEM_BLUETOOTH_BLUETOOTH_DETAILED_VIEW_H_
+
+#include "ash/login_status.h"
+#include "ash/system/bluetooth/tray_bluetooth_helper.h"
+#include "ash/system/tray/tray_detailed_view.h"
+
+namespace views {
+class ToggleButton;
+}  // namespace views
+
+namespace ash {
+namespace tray {
+
+class BluetoothDetailedView : public TrayDetailedView {
+ public:
+  BluetoothDetailedView(DetailedViewDelegate* delegate, LoginStatus login);
+
+  ~BluetoothDetailedView() override;
+
+  void Update();
+
+ private:
+  void CreateItems();
+
+  void BluetoothStartDiscovering();
+
+  void BluetoothStopDiscovering();
+
+  void UpdateBluetoothDeviceList();
+  void UpdateHeaderEntry();
+  void UpdateDeviceScrollList();
+  void AppendSameTypeDevicesToScrollList(const BluetoothDeviceList& list,
+                                         bool highlight,
+                                         bool checked,
+                                         bool enabled);
+
+  // Returns true if the device with |device_id| is found in |device_list|.
+  bool FoundDevice(const std::string& device_id,
+                   const BluetoothDeviceList& device_list) const;
+
+  // Updates UI of the clicked bluetooth device to show it is being connected
+  // or disconnected if such an operation is going to be performed underway.
+  void UpdateClickedDevice(const std::string& device_id,
+                           views::View* item_container);
+
+  // TrayDetailedView:
+  void HandleViewClicked(views::View* view) override;
+  void HandleButtonPressed(views::Button* sender,
+                           const ui::Event& event) override;
+  void CreateExtraTitleRowButtons() override;
+
+  void ShowSettings();
+  void ShowLoadingIndicator();
+  void HideLoadingIndicator();
+  void ShowDisabledPanel();
+  void HideDisabledPanel();
+
+  std::string GetFocusedDeviceAddress() const;
+  void FocusDeviceByAddress(const std::string& address) const;
+  void DoUpdate();
+
+  // TODO(jamescook): Don't cache this.
+  LoginStatus login_;
+
+  std::map<views::View*, std::string> device_map_;
+
+  BluetoothDeviceList connected_devices_;
+  BluetoothDeviceList connecting_devices_;
+  BluetoothDeviceList paired_not_connected_devices_;
+  BluetoothDeviceList discovered_not_paired_devices_;
+
+  views::ToggleButton* toggle_;
+  views::Button* settings_;
+
+  // The container of the message "Bluetooth is disabled" and an icon. It should
+  // be shown instead of Bluetooth device list when Bluetooth is disabled.
+  views::View* disabled_panel_;
+
+  // Timer used to limit the update frequency.
+  base::OneShotTimer timer_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothDetailedView);
+};
+
+}  // namespace tray
+}  // namespace ash
+
+#endif  // ASH_SYSTEM_BLUETOOTH_BLUETOOTH_DETAILED_VIEW_H_