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 struct list_window *lw;
  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_connection *connection;
  50         struct mpd_output *output;
  51
  52         assert(mpd_outputs != NULL);
  53
  54         if (!mpdclient_is_connected(c) ||
  55             output_index >= mpd_outputs->len)
  56                 return false;
  57
  58         connection = mpdclient_get_connection(c);
  59         output = g_ptr_array_index(mpd_outputs, output_index);
  60
  61         if (!mpd_output_get_enabled(output)) {
  62                 if (!mpd_run_enable_output(connection,
  63                                            mpd_output_get_id(output))) {
  64                         mpdclient_handle_error(c);
  65                         return false;
  66                 }
  67
  68                 c->events |= MPD_IDLE_OUTPUT;
  69
  70                 screen_status_printf(_("Output '%s' enabled"),
  71                                      mpd_output_get_name(output));
  72         } else {
  73                 if (!mpd_run_disable_output(connection,
  74                                             mpd_output_get_id(output))) {
  75                         mpdclient_handle_error(c);
  76                         return false;
  77                 }
  78
  79                 c->events |= MPD_IDLE_OUTPUT;
  80
  81                 screen_status_printf(_("Output '%s' disabled"),
  82                                      mpd_output_get_name(output));
  83         }
  84
  85         return true;
  86 }
  87
  88 static void
  89 clear_output_element(gpointer data, G_GNUC_UNUSED gpointer user_data)
  90 {
  91         mpd_output_free(data);
  92 }
  93
  94 static void
  95 clear_outputs_list(void)
  96 {
  97         assert(mpd_outputs != NULL);
  98
  99         if (mpd_outputs->len <= 0)
 100                 return;
 101
 102         g_ptr_array_foreach(mpd_outputs, clear_output_element, NULL);
 103         g_ptr_array_remove_range(mpd_outputs, 0, mpd_outputs->len);
 104 }
 105
 106 static void
 107 fill_outputs_list(struct mpdclient *c)
 108 {
 109         struct mpd_connection *connection;
 110         struct mpd_output *output;
 111
 112         assert(mpd_outputs != NULL);
 113
 114         if (!mpdclient_is_connected(c))
 115                 return;
 116
 117         connection = mpdclient_get_connection(c);
 118         mpd_send_outputs(connection);
 119         while ((output = mpd_recv_output(connection)) != NULL) {
 120                 g_ptr_array_add(mpd_outputs, output);
 121         }
 122
 123         if (!mpd_response_finish(connection))
 124                 mpdclient_handle_error(c);
 125
 126         list_window_set_length(lw, mpd_outputs->len);
 127 }
 128
 129 static const char *
 130 outputs_list_callback(unsigned int output_index, bool *highlight,
 131                       G_GNUC_UNUSED char **sc, G_GNUC_UNUSED void *data)
 132 {
 133         struct mpd_output *output;
 134
 135         assert(mpd_outputs != NULL);
 136
 137         if (output_index >= mpd_outputs->len)
 138                 return NULL;
 139
 140         output = g_ptr_array_index(mpd_outputs, output_index);
 141
 142         if (mpd_output_get_enabled(output))
 143                 *highlight = true;
 144
 145         return mpd_output_get_name(output);
 146 }
 147
 148 static void
 149 outputs_init(WINDOW *w, int cols, int rows)
 150 {
 151         lw = list_window_init(w, cols, rows);
 152
 153         mpd_outputs = g_ptr_array_new();
 154 }
 155
 156 static void
 157 outputs_resize(int cols, int rows)
 158 {
 159         lw->cols = cols;
 160         lw->rows = rows;
 161 }
 162
 163 static void
 164 outputs_exit(void)
 165 {
 166         list_window_free(lw);
 167
 168         g_ptr_array_free(mpd_outputs, TRUE);
 169 }
 170
 171 static void
 172 outputs_open(struct mpdclient *c)
 173 {
 174         fill_outputs_list(c);
 175 }
 176
 177 static void
 178 outputs_close(void)
 179 {
 180         clear_outputs_list();
 181 }
 182
 183 static const char *
 184 outputs_title(G_GNUC_UNUSED char *str, G_GNUC_UNUSED size_t size)
 185 {
 186         return _("Outputs");
 187 }
 188
 189 static void
 190 outputs_paint(void)
 191 {
 192         list_window_paint(lw, outputs_list_callback, NULL);
 193 }
 194
 195 static void
 196 screen_outputs_update(struct mpdclient *c)
 197 {
 198         if (c->events & MPD_IDLE_OUTPUT) {
 199                 clear_outputs_list();
 200                 fill_outputs_list(c);
 201                 outputs_repaint();
 202         }
 203 }
 204
 205 static bool
 206 outputs_cmd(struct mpdclient *c, command_t cmd)
 207 {
 208         assert(mpd_outputs != NULL);
 209
 210         if (list_window_cmd(lw, cmd)) {
 211                 outputs_repaint();
 212                 return true;
 213         }
 214
 215         switch (cmd) {
 216         case CMD_PLAY:
 217                 toggle_output(c, lw->selected);
 218                 return true;
 219
 220         case CMD_SCREEN_UPDATE:
 221                 clear_outputs_list();
 222                 fill_outputs_list(c);
 223                 outputs_repaint();
 224                 return true;
 225
 226         default:
 227                 break;
 228         }
 229
 230         return false;
 231 }
 232
 233 const struct screen_functions screen_outputs = {
 234         .init      = outputs_init,
 235         .exit      = outputs_exit,
 236         .open      = outputs_open,
 237         .close     = outputs_close,
 238         .resize    = outputs_resize,
 239         .paint     = outputs_paint,
 240         .update = screen_outputs_update,
 241         .cmd       = outputs_cmd,
 242         .get_title = outputs_title,
 243 };