xbmc/dialogs/IGUIVolumeBarCallback.h

   1 /*
   2  *  Copyright (C) 2017-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #pragma once
  10
  11 /*!
  12  * \brief Interface to expose properties to the volume bar dialog
  13  */
  14 class IGUIVolumeBarCallback
  15 {
  16 public:
  17   virtual ~IGUIVolumeBarCallback() = default;
  18
  19   /*!
  20    * \brief Return true if the callback is active in the GUI
  21    *
  22    * If a registered callback is shown in the GUI, the volume bar is disabled
  23    * until no more callbacks are shown.
  24    *
  25    * \return True if the callback is active in the GUI, false otherwise
  26    */
  27   virtual bool IsShown() const = 0;
  28 };