Revert of HID-detection screen moved to screenContext.

chrome/browser/chromeos/login/screens/hid_detection_screen.h

 // Copyright 2014 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 CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_SCREEN_H_
 
 #include <string>
-#include <vector>
 
-#include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/chromeos/device/input_service_proxy.h"
 #include "chrome/browser/chromeos/login/screens/base_screen.h"
-#include "chrome/browser/chromeos/login/screens/hid_detection_model.h"
-#include "components/login/screens/screen_context.h"
-#include "device/bluetooth/bluetooth_adapter.h"
-#include "device/bluetooth/bluetooth_device.h"
-#include "device/bluetooth/bluetooth_discovery_session.h"
-#include "device/hid/input_service_linux.h"
+#include "chrome/browser/chromeos/login/screens/hid_detection_screen_actor.h"
 
 namespace chromeos {
 
-class HIDDetectionView;
-
 // Representation independent class that controls screen showing warning about
 // HID absence to users.
-class HIDDetectionScreen : public HIDDetectionModel,
-                           public device::BluetoothAdapter::Observer,
-                           public device::BluetoothDevice::PairingDelegate,
-                           public InputServiceProxy::Observer {
+class HIDDetectionScreen : public BaseScreen,
+                           public HIDDetectionScreenActor::Delegate {
  public:
-  typedef device::InputServiceLinux::InputDeviceInfo InputDeviceInfo;
-
-  class Delegate {
-   public:
-    virtual ~Delegate() {}
-    virtual void OnHIDScreenNecessityCheck(bool screen_needed) = 0;
-  };
-
   HIDDetectionScreen(BaseScreenDelegate* base_screen_delegate,
-                     HIDDetectionView* view);
+                     HIDDetectionScreenActor* actor);
   ~HIDDetectionScreen() override;
 
-  // HIDDetectionModel implementation:
+  // BaseScreen implementation:
   void PrepareToShow() override;
   void Show() override;
   void Hide() override;
-  void Initialize(::login::ScreenContext* context) override;
-  void OnContinueButtonClicked() override;
-  void OnViewDestroyed(HIDDetectionView* view) override;
-  void CheckIsScreenRequired(
-      const base::Callback<void(bool)>& on_check_done) override;
+  std::string GetName() const override;
 
-  // device::BluetoothDevice::PairingDelegate implementation:
-  void RequestPinCode(device::BluetoothDevice* device) override;
-  void RequestPasskey(device::BluetoothDevice* device) override;
-  void DisplayPinCode(device::BluetoothDevice* device,
-                      const std::string& pincode) override;
-  void DisplayPasskey(
-      device::BluetoothDevice* device, uint32 passkey) override;
-  void KeysEntered(device::BluetoothDevice* device, uint32 entered) override;
-  void ConfirmPasskey(
-      device::BluetoothDevice* device, uint32 passkey) override;
-  void AuthorizePairing(device::BluetoothDevice* device) override;
-
-  // device::BluetoothAdapter::Observer implementation.
-  void AdapterPresentChanged(device::BluetoothAdapter* adapter,
-                             bool present) override;
-  void DeviceAdded(device::BluetoothAdapter* adapter,
-                   device::BluetoothDevice* device) override;
-  void DeviceChanged(device::BluetoothAdapter* adapter,
-                     device::BluetoothDevice* device) override;
-  void DeviceRemoved(device::BluetoothAdapter* adapter,
-                     device::BluetoothDevice* device) override;
-
-  // InputServiceProxy::Observer implementation.
-  void OnInputDeviceAdded(const InputDeviceInfo& info) override;
-  void OnInputDeviceRemoved(const std::string& id) override;
+  // HIDDetectionScreenActor::Delegate implementation:
+  void OnExit() override;
+  void OnActorDestroyed(HIDDetectionScreenActor* actor) override;
 
  private:
-  // Types of dialog leaving scenarios for UMA metric.
-  enum ContinueScenarioType {
-    // Only pointing device detected, user pressed 'Continue'.
-    POINTING_DEVICE_ONLY_DETECTED,
-
-    // Only keyboard detected, user pressed 'Continue'.
-    KEYBOARD_DEVICE_ONLY_DETECTED,
-
-    // All devices detected.
-    All_DEVICES_DETECTED,
-
-    // Must be last enum element.
-    CONTINUE_SCENARIO_TYPE_SIZE
-  };
-
-  void InitializeAdapter(scoped_refptr<device::BluetoothAdapter> adapter);
-
-  void StartBTDiscoverySession();
-
-  // Updates internal state and UI (if ready) using list of connected devices.
-  void ProcessConnectedDevicesList(
-      const std::vector<InputDeviceInfo>& devices);
-
-  // Checks for lack of mouse or keyboard. If found starts BT devices update.
-  // Initiates BTAdapter if it's not active and BT devices update required.
-  void TryInitiateBTDevicesUpdate();
-
-  // Processes list of input devices returned by InputServiceProxy on the check
-  // request. Calls the callback that expects true if screen is required.
-  void OnGetInputDevicesListForCheck(
-      const base::Callback<void(bool)>& on_check_done,
-      const std::vector<InputDeviceInfo>& devices);
-
-  // Processes list of input devices returned by InputServiceProxy on regular
-  // request.
-  void OnGetInputDevicesList(const std::vector<InputDeviceInfo>& devices);
-
-  // Called for revision of active devices. If current-placement is available
-  // for mouse or keyboard device, sets one of active devices as current or
-  // tries to connect some BT device if no appropriate devices are connected.
-  void UpdateDevices();
-
-  // Tries to connect some BT devices if no type-appropriate devices are
-  // connected.
-  void UpdateBTDevices();
-
-  // Called by device::BluetoothAdapter in response to a successful request
-  // to initiate a discovery session.
-  void OnStartDiscoverySession(
-      scoped_ptr<device::BluetoothDiscoverySession> discovery_session);
-
-  // Called by device::BluetoothAdapter in response to a failure to
-  // initiate a discovery session.
-  void FindDevicesError();
-
-  // Called by device::BluetoothAdapter in response to a failure to
-  // power BT adapter.
-  void SetPoweredError();
-
-  // Called by device::BluetoothAdapter in response to a failure to
-  // power off BT adapter.
-  void SetPoweredOffError();
-
-  // Tries to connect given BT device as pointing one.
-  void TryPairingAsPointingDevice(device::BluetoothDevice* device);
-
-  // Tries to connect given BT device as keyboard.
-  void TryPairingAsKeyboardDevice(device::BluetoothDevice* device);
-
-  // Tries to connect given BT device.
-  void ConnectBTDevice(device::BluetoothDevice* device);
-
-  // Called by device::BluetoothDevice on a successful pairing and connection
-  // to a device.
-  void BTConnected(device::BluetoothDevice::DeviceType device_type);
-
-  // Called by device::BluetoothDevice in response to a failure to
-  // connect to the device with bluetooth address |address| due to an error
-  // encoded in |error_code|.
-  void BTConnectError(const std::string& address,
-                      device::BluetoothDevice::DeviceType device_type,
-                      device::BluetoothDevice::ConnectErrorCode error_code);
-
-  // Sends a notification to the Web UI of the status of available Bluetooth/USB
-  // pointing device.
-  void SendPointingDeviceNotification();
-
-  // Sends a notification to the Web UI of the status of available Bluetooth/USB
-  // keyboard device.
-  void SendKeyboardDeviceNotification();
-
-  // Helper method. Sets device name or placeholder if the name is empty.
-  void SetKeyboardDeviceName_(std::string name);
-
-
-  HIDDetectionView* view_;
-
-  // Default bluetooth adapter, used for all operations.
-  scoped_refptr<device::BluetoothAdapter> adapter_;
-
-  InputServiceProxy input_service_proxy_;
-
-  // The current device discovery session. Only one active discovery session is
-  // kept at a time and the instance that |discovery_session_| points to gets
-  // replaced by a new one when a new discovery session is initiated.
-  scoped_ptr<device::BluetoothDiscoverySession> discovery_session_;
-
-  // Current pointing device, if any. Device name is kept in screen context.
-  std::string pointing_device_id_;
-  bool mouse_is_pairing_;
-  InputDeviceInfo::Type pointing_device_connect_type_;
-
-  // Current keyboard device, if any. Device name is kept in screen context.
-  std::string keyboard_device_id_;
-  bool keyboard_is_pairing_;
-  InputDeviceInfo::Type keyboard_device_connect_type_;
-  std::string keyboard_device_name_;
-
-  // State of BT adapter before screen-initiated changes.
-  scoped_ptr<bool> adapter_initially_powered_;
-
-  bool switch_on_adapter_when_ready_;
-
-  bool showing_;
-
-  base::WeakPtrFactory<HIDDetectionScreen> weak_ptr_factory_;
+  HIDDetectionScreenActor* actor_;
 
   DISALLOW_COPY_AND_ASSIGN(HIDDetectionScreen);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_SCREEN_H_