chrome/browser/chromeos/login/screens/hid_detection_view.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_VIEW_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_VIEW_H_
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11
  12 namespace chromeos {
  13
  14 class HIDDetectionModel;
  15
  16 // Interface between HID detection screen and its representation, either WebUI
  17 // or Views one. Note, do not forget to call OnViewDestroyed in the
  18 // dtor.
  19 class HIDDetectionView {
  20  public:
  21   virtual ~HIDDetectionView() {}
  22
  23   virtual void PrepareToShow() = 0;
  24   virtual void Show() = 0;
  25   virtual void Hide() = 0;
  26   virtual void Bind(HIDDetectionModel& model) = 0;
  27   virtual void Unbind() = 0;
  28   // Checks if we should show the screen or enough devices already present.
  29   // Calls corresponding set of actions based on the bool result.
  30   virtual void CheckIsScreenRequired(
  31       const base::Callback<void(bool)>& on_check_done) = 0;
  32 };
  33
  34 }  // namespace chromeos
  35
  36 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_VIEW_H_