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