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

   1 // Copyright 2014 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 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_MODEL_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_MODEL_H_
   7
   8 #include "base/callback_forward.h"
   9 #include "chrome/browser/chromeos/login/screens/base_screen.h"
  10
  11 namespace chromeos {
  12
  13 class BaseScreenDelegate;
  14 class HIDDetectionView;
  15
  16 class HIDDetectionModel : public BaseScreen {
  17  public:
  18   static const char kContextKeyKeyboardState[];
  19   static const char kContextKeyMouseState[];
  20   static const char kContextKeyNumKeysEnteredExpected[];
  21   static const char kContextKeyNumKeysEnteredPinCode[];
  22   static const char kContextKeyPinCode[];
  23   static const char kContextKeyMouseDeviceName[];
  24   static const char kContextKeyKeyboardDeviceName[];
  25   static const char kContextKeyKeyboardLabel[];
  26   static const char kContextKeyContinueButtonEnabled[];
  27
  28   explicit HIDDetectionModel(BaseScreenDelegate* base_screen_delegate);
  29   ~HIDDetectionModel() override;
  30
  31   // BaseScreen implementation:
  32   std::string GetName() const override;
  33
  34   // Called when continue button was clicked.
  35   virtual void OnContinueButtonClicked() = 0;
  36
  37   // Checks if we should show the screen or enough devices already present.
  38   // Calls corresponding set of actions based on the bool result.
  39   virtual void CheckIsScreenRequired(
  40       const base::Callback<void(bool)>& on_check_done) = 0;
  41
  42   // This method is called, when view is being destroyed. Note, if model
  43   // is destroyed earlier then it has to call Unbind().
  44   virtual void OnViewDestroyed(HIDDetectionView* view) = 0;
  45 };
  46
  47 }  // namespace chromeos
  48
  49 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_MODEL_H_