src/player_command.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2009 The Music Player Daemon Project
   3  * Project homepage: http://musicpd.org
   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 along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #include "player_command.h"
  21 #include "mpdclient.h"
  22 #include "options.h"
  23 #include "i18n.h"
  24 #include "screen_client.h"
  25 #include "screen_message.h"
  26
  27 int seek_id = -1;
  28 int seek_target_time;
  29
  30 static guint seek_source_id;
  31
  32 static void
  33 commit_seek(struct mpdclient *c)
  34 {
  35         if (seek_id < 0)
  36                 return;
  37
  38         if (!mpdclient_is_connected(c)) {
  39                 seek_id = -1;
  40                 return;
  41         }
  42
  43         if (c->song != NULL && (unsigned)seek_id == mpd_song_get_id(c->song))
  44                 if (!mpd_run_seek_id(c->connection, seek_id, seek_target_time))
  45                         mpdclient_handle_error(c);
  46
  47         seek_id = -1;
  48 }
  49
  50 /**
  51  * This timer is invoked after seeking when the user hasn't typed a
  52  * key for 500ms.  It is used to do the real seeking.
  53  */
  54 static gboolean
  55 seek_timer(gpointer data)
  56 {
  57         struct mpdclient *c = data;
  58
  59         seek_source_id = 0;
  60         commit_seek(c);
  61         return false;
  62 }
  63
  64 static void
  65 schedule_seek_timer(struct mpdclient *c)
  66 {
  67         assert(seek_source_id == 0);
  68
  69         seek_source_id = g_timeout_add(500, seek_timer, c);
  70 }
  71
  72 void
  73 cancel_seek_timer(void)
  74 {
  75         if (seek_source_id != 0) {
  76                 g_source_remove(seek_source_id);
  77                 seek_source_id = 0;
  78         }
  79 }
  80
  81 bool
  82 handle_player_command(struct mpdclient *c, command_t cmd)
  83 {
  84         const struct mpd_song *song;
  85
  86         if (!mpdclient_is_connected(c) || c->status == NULL)
  87                 return false;
  88
  89         cancel_seek_timer();
  90
  91         switch(cmd) {
  92                 /*
  93         case CMD_PLAY:
  94                 mpdclient_cmd_play(c, MPD_PLAY_AT_BEGINNING);
  95                 break;
  96                 */
  97         case CMD_PAUSE:
  98                 if (!mpd_run_pause(c->connection,
  99                                    mpd_status_get_state(c->status) != MPD_STATE_PAUSE))
 100                         mpdclient_handle_error(c);
 101                 break;
 102         case CMD_STOP:
 103                 if (!mpd_run_stop(c->connection))
 104                         mpdclient_handle_error(c);
 105                 break;
 106         case CMD_CROP:
 107                 mpdclient_cmd_crop(c);
 108                 break;
 109         case CMD_SEEK_FORWARD:
 110                 song = mpdclient_get_current_song(c);
 111                 if (song != NULL) {
 112                         if (seek_id != (int)mpd_song_get_id(song)) {
 113                                 seek_id = mpd_song_get_id(song);
 114                                 seek_target_time = mpd_status_get_elapsed_time(c->status);
 115                         }
 116                         seek_target_time+=options.seek_time;
 117                         if (seek_target_time > (int)mpd_status_get_total_time(c->status))
 118                                 seek_target_time = mpd_status_get_total_time(c->status);
 119                         schedule_seek_timer(c);
 120                 }
 121                 break;
 122                 /* fall through... */
 123         case CMD_TRACK_NEXT:
 124                 if (!mpd_run_next(c->connection))
 125                         mpdclient_handle_error(c);
 126                 break;
 127         case CMD_SEEK_BACKWARD:
 128                 song = mpdclient_get_current_song(c);
 129                 if (song != NULL) {
 130                         if (seek_id != (int)mpd_song_get_id(song)) {
 131                                 seek_id = mpd_song_get_id(c->song);
 132                                 seek_target_time = mpd_status_get_elapsed_time(c->status);
 133                         }
 134                         seek_target_time-=options.seek_time;
 135                         if (seek_target_time < 0)
 136                                 seek_target_time=0;
 137                         schedule_seek_timer(c);
 138                 }
 139                 break;
 140         case CMD_TRACK_PREVIOUS:
 141                 if (!mpd_run_previous(c->connection))
 142                         mpdclient_handle_error(c);
 143                 break;
 144         case CMD_SHUFFLE:
 145                 if (mpd_run_shuffle(c->connection))
 146                         screen_status_message(_("Shuffled playlist"));
 147                 else
 148                         mpdclient_handle_error(c);
 149                 break;
 150         case CMD_CLEAR:
 151                 if (mpdclient_cmd_clear(c))
 152                         screen_status_message(_("Cleared playlist"));
 153                 break;
 154         case CMD_REPEAT:
 155                 if (!mpd_run_repeat(c->connection,
 156                                     !mpd_status_get_repeat(c->status)))
 157                         mpdclient_handle_error(c);
 158                 break;
 159         case CMD_RANDOM:
 160                 if (!mpd_run_random(c->connection,
 161                                     !mpd_status_get_random(c->status)))
 162                         mpdclient_handle_error(c);
 163                 break;
 164         case CMD_SINGLE:
 165                 if (!mpd_run_single(c->connection,
 166                                     !mpd_status_get_single(c->status)))
 167                         mpdclient_handle_error(c);
 168                 break;
 169         case CMD_CONSUME:
 170                 if (!mpd_run_consume(c->connection,
 171                                      !mpd_status_get_consume(c->status)))
 172                         mpdclient_handle_error(c);
 173                 break;
 174         case CMD_CROSSFADE:
 175                 if (!mpd_run_crossfade(c->connection,
 176                                        mpd_status_get_crossfade(c->status) > 0
 177                                        ? 0 : options.crossfade_time))
 178                         mpdclient_handle_error(c);
 179                 break;
 180         case CMD_DB_UPDATE:
 181                 screen_database_update(c, NULL);
 182                 break;
 183         case CMD_VOLUME_UP:
 184                 mpdclient_cmd_volume_up(c);
 185                 break;
 186         case CMD_VOLUME_DOWN:
 187                 mpdclient_cmd_volume_down(c);
 188                 break;
 189
 190         default:
 191                 return false;
 192         }
 193
 194         return true;
 195 }