apps/plugins/lib/playback_control.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2006 Jonathan Gordon
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19
  20 #include "plugin.h"
  21
  22 struct plugin_api* api = 0;
  23
  24 bool prevtrack(void)
  25 {
  26     api->audio_prev();
  27     return false;
  28 }
  29
  30 bool play(void)
  31 {
  32     int audio_status = api->audio_status();
  33     if (!audio_status && api->global_status->resume_index != -1)
  34     {
  35         if (api->playlist_resume() != -1)
  36         {
  37             api->playlist_start(api->global_status->resume_index,
  38                 api->global_status->resume_offset);
  39         }
  40     }
  41     else if (audio_status & AUDIO_STATUS_PAUSE)
  42         api->audio_resume();
  43     else
  44         api->audio_pause();
  45     return false;
  46 }
  47
  48 bool stop(void)
  49 {
  50     api->audio_stop();
  51     return false;
  52 }
  53
  54 bool nexttrack(void)
  55 {
  56     api->audio_next();
  57     return false;
  58 }
  59
  60 static bool volume(void)
  61 {
  62     const struct settings_list* vol =
  63         api->find_setting(&api->global_settings->volume, NULL);
  64     return api->option_screen((struct settings_list*)vol, false, "Volume");
  65 }
  66
  67 static bool shuffle(void)
  68 {
  69     const struct settings_list* shuffle =
  70         api->find_setting(&api->global_settings->playlist_shuffle, NULL);
  71     return api->option_screen((struct settings_list*)shuffle, false, "Shuffle");
  72 }
  73
  74 static bool repeat_mode(void)
  75 {
  76     const struct settings_list* repeat =
  77         api->find_setting(&api->global_settings->repeat_mode, NULL);
  78     int old_repeat = api->global_settings->repeat_mode;
  79
  80     api->option_screen((struct settings_list*)repeat, false, "Repeat");
  81
  82     if (old_repeat != api->global_settings->repeat_mode &&
  83         (api->audio_status() & AUDIO_STATUS_PLAY))
  84         api->audio_flush_and_reload_tracks();
  85
  86     return false;
  87 }
  88 MENUITEM_FUNCTION(prevtrack_item, 0, "Previous Track",
  89                   prevtrack, NULL, NULL, Icon_NOICON);
  90 MENUITEM_FUNCTION(playpause_item, 0, "Pause / Play",
  91                   play, NULL, NULL, Icon_NOICON);
  92 MENUITEM_FUNCTION(stop_item, 0, "Stop Playback",
  93                   stop, NULL, NULL, Icon_NOICON);
  94 MENUITEM_FUNCTION(nexttrack_item, 0, "Next Track",
  95                   nexttrack, NULL, NULL, Icon_NOICON);
  96 MENUITEM_FUNCTION(volume_item, 0, "Change Volume",
  97                   volume, NULL, NULL, Icon_NOICON);
  98 MENUITEM_FUNCTION(shuffle_item, 0, "Enable/Disable Shuffle",
  99                   shuffle, NULL, NULL, Icon_NOICON);
 100 MENUITEM_FUNCTION(repeat_mode_item, 0, "Change Repeat Mode",
 101                   repeat_mode, NULL, NULL, Icon_NOICON);
 102 MAKE_MENU(playback_control_menu, "Playback Control", NULL, Icon_NOICON,
 103             &prevtrack_item, &playpause_item, &stop_item, &nexttrack_item,
 104             &volume_item, &shuffle_item, &repeat_mode_item);
 105
 106 void playback_control_init(struct plugin_api* newapi)
 107 {
 108     api = newapi;
 109 }
 110
 111 bool playback_control(struct plugin_api* newapi)
 112 {
 113     api = newapi;
 114     return api->do_menu(&playback_control_menu, NULL, NULL, false) == MENU_ATTACHED_USB;
 115 }