src/screen_outputs.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 "screen_outputs.h"
  21 #include "screen_interface.h"
  22 #include "screen_message.h"
  23 #include "i18n.h"
  24 #include "list_window.h"
  25 #include "mpdclient.h"
  26
  27 #include <mpd/client.h>
  28
  29 #include <glib.h>
  30 #include <assert.h>
  31
  32 static list_window_t *lw = NULL;
  33
  34 static GPtrArray *mpd_outputs = NULL;
  35
  36 static void
  37 outputs_paint(void);
  38
  39 static void
  40 outputs_repaint(void)
  41 {
  42         outputs_paint();
  43         wrefresh(lw->w);
  44 }
  45
  46 static bool
  47 toggle_output(struct mpdclient *c, unsigned int output_index)
  48 {
  49         struct mpd_output *output;
  50
  51         assert(mpd_outputs != NULL);
  52
  53         if (output_index >= mpd_outputs->len)
  54                 return false;
  55
  56         output = g_ptr_array_index(mpd_outputs, output_index);
  57
  58         if (!mpd_output_get_enabled(output)) {
  59                 if (!mpd_run_enable_output(c->connection,
  60                                            mpd_output_get_id(output))) {
  61                         mpdclient_handle_error(c);
  62                         return false;
  63                 }
  64
  65                 c->events |= MPD_IDLE_OUTPUT;
  66
  67                 screen_status_printf(_("Output '%s' enabled"),
  68                                      mpd_output_get_name(output));
  69         } else {
  70                 if (!mpd_run_disable_output(c->connection,
  71                                             mpd_output_get_id(output))) {
  72                         mpdclient_handle_error(c);
  73                         return false;
  74                 }
  75
  76                 c->events |= MPD_IDLE_OUTPUT;
  77
  78                 screen_status_printf(_("Output '%s' disabled"),
  79                                      mpd_output_get_name(output));
  80         }
  81
  82         return true;
  83 }
  84
  85 static void
  86 clear_output_element(gpointer data, G_GNUC_UNUSED gpointer user_data)
  87 {
  88         mpd_output_free(data);
  89 }
  90
  91 static void
  92 clear_outputs_list(void)
  93 {
  94         assert(mpd_outputs != NULL);
  95
  96         if (mpd_outputs->len <= 0)
  97                 return;
  98
  99         g_ptr_array_foreach(mpd_outputs, clear_output_element, NULL);
 100         g_ptr_array_remove_range(mpd_outputs, 0, mpd_outputs->len);
 101 }
 102
 103 static void
 104 fill_outputs_list(struct mpdclient *c)
 105 {
 106         struct mpd_output *output;
 107
 108         assert(mpd_outputs != NULL);
 109
 110         if (!mpdclient_is_connected(c))
 111                 return;
 112
 113         mpd_send_outputs(c->connection);
 114         while ((output = mpd_recv_output(c->connection)) != NULL) {
 115                 g_ptr_array_add(mpd_outputs, output);
 116         }
 117
 118         if (!mpd_response_finish(c->connection))
 119                 mpdclient_handle_error(c);
 120 }
 121
 122 static const char *
 123 outputs_list_callback(unsigned int output_index, bool *highlight,
 124                       G_GNUC_UNUSED char **sc, G_GNUC_UNUSED void *data)
 125 {
 126         struct mpd_output *output;
 127
 128         assert(mpd_outputs != NULL);
 129
 130         if (output_index >= mpd_outputs->len)
 131                 return NULL;
 132
 133         output = g_ptr_array_index(mpd_outputs, output_index);
 134
 135         if (mpd_output_get_enabled(output))
 136                 *highlight = true;
 137
 138         return mpd_output_get_name(output);
 139 }
 140
 141 static void
 142 outputs_init(WINDOW *w, int cols, int rows)
 143 {
 144         lw = list_window_init(w, cols, rows);
 145
 146         mpd_outputs = g_ptr_array_new();
 147 }
 148
 149 static void
 150 outputs_resize(int cols, int rows)
 151 {
 152         lw->cols = cols;
 153         lw->rows = rows;
 154 }
 155
 156 static void
 157 outputs_exit(void)
 158 {
 159         list_window_free(lw);
 160
 161         g_ptr_array_free(mpd_outputs, TRUE);
 162 }
 163
 164 static void
 165 outputs_open(struct mpdclient *c)
 166 {
 167         fill_outputs_list(c);
 168 }
 169
 170 static void
 171 outputs_close(void)
 172 {
 173         clear_outputs_list();
 174 }
 175
 176 static const char *
 177 outputs_title(G_GNUC_UNUSED char *str, G_GNUC_UNUSED size_t size)
 178 {
 179         return _("Outputs");
 180 }
 181
 182 static void
 183 outputs_paint(void)
 184 {
 185         list_window_paint(lw, outputs_list_callback, NULL);
 186 }
 187
 188 static void
 189 screen_outputs_update(struct mpdclient *c)
 190 {
 191         if (c->events & MPD_IDLE_OUTPUT) {
 192                 clear_outputs_list();
 193                 fill_outputs_list(c);
 194                 outputs_repaint();
 195         }
 196 }
 197
 198 static bool
 199 outputs_cmd(struct mpdclient *c, command_t cmd)
 200 {
 201         assert(mpd_outputs != NULL);
 202
 203         if (list_window_cmd(lw, mpd_outputs->len, cmd)) {
 204                 outputs_repaint();
 205                 return true;
 206         }
 207
 208         switch (cmd) {
 209         case CMD_PLAY:
 210                 toggle_output(c, lw->selected);
 211                 return true;
 212
 213         case CMD_SCREEN_UPDATE:
 214                 clear_outputs_list();
 215                 fill_outputs_list(c);
 216                 outputs_repaint();
 217                 return true;
 218
 219         default:
 220                 break;
 221         }
 222
 223         return false;
 224 }
 225
 226 const struct screen_functions screen_outputs = {
 227         .init      = outputs_init,
 228         .exit      = outputs_exit,
 229         .open      = outputs_open,
 230         .close     = outputs_close,
 231         .resize    = outputs_resize,
 232         .paint     = outputs_paint,
 233         .update = screen_outputs_update,
 234         .cmd       = outputs_cmd,
 235         .get_title = outputs_title,
 236 };