src/interfaces.h

   1 /***************************************************************************
   2  *   Copyright (C) 2008-2014 by Andrzej Rybczak                            *
   3  *   electricityispower@gmail.com                                          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.              *
  19  ***************************************************************************/
  20
  21 #ifndef NCMPCPP_INTERFACES_H
  22 #define NCMPCPP_INTERFACES_H
  23
  24 #include <boost/range/detail/any_iterator.hpp>
  25 #include <boost/tuple/tuple.hpp>
  26 #include <string>
  27 #include "enums.h"
  28 #include "gcc.h"
  29 #include "screen.h"
  30 #include "song.h"
  31
  32 struct Searchable
  33 {
  34         virtual bool allowsSearching() = 0;
  35         virtual void setSearchConstraint(const std::string &constraint) = 0;
  36         virtual void clearConstraint() = 0;
  37         virtual bool find(SearchDirection direction, bool wrap, bool skip_current) = 0;
  38 };
  39
  40 struct HasActions
  41 {
  42         virtual bool actionRunnable() = 0;
  43         virtual void runAction() = 0;
  44 };
  45
  46 struct HasSongs
  47 {
  48         virtual bool itemAvailable() = 0;
  49         virtual bool addItemToPlaylist(bool play) = 0;
  50         virtual std::vector<MPD::Song> getSelectedSongs() = 0;
  51 };
  52
  53 struct HasColumns
  54 {
  55         virtual bool previousColumnAvailable() = 0;
  56         virtual void previousColumn() = 0;
  57
  58         virtual bool nextColumnAvailable() = 0;
  59         virtual void nextColumn() = 0;
  60 };
  61
  62 struct Tabbable
  63 {
  64         Tabbable() : m_previous_screen(0) { }
  65
  66         void switchToPreviousScreen() const {
  67                 if (m_previous_screen)
  68                         m_previous_screen->switchTo();
  69         }
  70         void setPreviousScreen(BaseScreen *screen) {
  71                 m_previous_screen = screen;
  72         }
  73         BaseScreen *previousScreen() const {
  74                 return m_previous_screen;
  75         }
  76
  77 private:
  78         BaseScreen *m_previous_screen;
  79 };
  80
  81 #endif // NCMPCPP_INTERFACES_H