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 "paint.h"
  24 #include "i18n.h"
  25 #include "list_window.h"
  26 #include "mpdclient.h"
  27
  28 #include <mpd/client.h>
  29
  30 #include <glib.h>
  31 #include <assert.h>
  32
  33 static struct list_window *lw;
  34
  35 static GPtrArray *mpd_outputs = NULL;
  36
  37 static void
  38 outputs_paint(void);
  39
  40 static void
  41 outputs_repaint(void)
  42 {
  43         outputs_paint();
  44         wrefresh(lw->w);
  45 }
  46
  47 static bool
  48 toggle_output(struct mpdclient *c, unsigned int output_index)
  49 {
  50         struct mpd_connection *connection;
  51         struct mpd_output *output;
  52
  53         assert(mpd_outputs != NULL);
  54
  55         if (!mpdclient_is_connected(c) ||
  56             output_index >= mpd_outputs->len)
  57                 return false;
  58
  59         connection = mpdclient_get_connection(c);
  60         output = g_ptr_array_index(mpd_outputs, output_index);
  61
  62         if (!mpd_output_get_enabled(output)) {
  63                 if (!mpd_run_enable_output(connection,
  64                                            mpd_output_get_id(output))) {
  65                         mpdclient_handle_error(c);
  66                         return false;
  67                 }
  68
  69                 c->events |= MPD_IDLE_OUTPUT;
  70
  71                 screen_status_printf(_("Output '%s' enabled"),
  72                                      mpd_output_get_name(output));
  73         } else {
  74                 if (!mpd_run_disable_output(connection,
  75                                             mpd_output_get_id(output))) {
  76                         mpdclient_handle_error(c);
  77                         return false;
  78                 }
  79
  80                 c->events |= MPD_IDLE_OUTPUT;
  81
  82                 screen_status_printf(_("Output '%s' disabled"),
  83                                      mpd_output_get_name(output));
  84         }
  85
  86         return true;
  87 }
  88
  89 static void
  90 clear_output_element(gpointer data, G_GNUC_UNUSED gpointer user_data)
  91 {
  92         mpd_output_free(data);
  93 }
  94
  95 static void
  96 clear_outputs_list(void)
  97 {
  98         assert(mpd_outputs != NULL);
  99
 100         if (mpd_outputs->len <= 0)
 101                 return;
 102
 103         g_ptr_array_foreach(mpd_outputs, clear_output_element, NULL);
 104         g_ptr_array_remove_range(mpd_outputs, 0, mpd_outputs->len);
 105         list_window_set_length(lw, 0);
 106 }
 107
 108 static void
 109 fill_outputs_list(struct mpdclient *c)
 110 {
 111         struct mpd_connection *connection;
 112         struct mpd_output *output;
 113
 114         assert(mpd_outputs != NULL);
 115
 116         if (!mpdclient_is_connected(c))
 117                 return;
 118
 119         connection = mpdclient_get_connection(c);
 120         mpd_send_outputs(connection);
 121         while ((output = mpd_recv_output(connection)) != NULL) {
 122                 g_ptr_array_add(mpd_outputs, output);
 123         }
 124
 125         if (!mpd_response_finish(connection))
 126                 mpdclient_handle_error(c);
 127
 128         list_window_set_length(lw, mpd_outputs->len);
 129 }
 130
 131 static void
 132 outputs_init(WINDOW *w, int cols, int rows)
 133 {
 134         lw = list_window_init(w, cols, rows);
 135
 136         mpd_outputs = g_ptr_array_new();
 137 }
 138
 139 static void
 140 outputs_resize(int cols, int rows)
 141 {
 142         list_window_resize(lw, cols, rows);
 143 }
 144
 145 static void
 146 outputs_exit(void)
 147 {
 148         list_window_free(lw);
 149
 150         g_ptr_array_free(mpd_outputs, TRUE);
 151 }
 152
 153 static void
 154 outputs_open(struct mpdclient *c)
 155 {
 156         fill_outputs_list(c);
 157 }
 158
 159 static void
 160 outputs_close(void)
 161 {
 162         clear_outputs_list();
 163 }
 164
 165 static const char *
 166 outputs_title(G_GNUC_UNUSED char *str, G_GNUC_UNUSED size_t size)
 167 {
 168         return _("Outputs");
 169 }
 170
 171 static void
 172 screen_outputs_paint_callback(WINDOW *w, unsigned i,
 173                               G_GNUC_UNUSED unsigned y, unsigned width,
 174                               bool selected, G_GNUC_UNUSED void *data)
 175 {
 176         const struct mpd_output *output;
 177
 178         assert(mpd_outputs != NULL);
 179         assert(i < mpd_outputs->len);
 180
 181         output = g_ptr_array_index(mpd_outputs, i);
 182
 183         row_color(w, COLOR_LIST, selected);
 184         waddstr(w, mpd_output_get_enabled(output) ? "[X] " : "[ ] ");
 185         waddstr(w, mpd_output_get_name(output));
 186         row_clear_to_eol(w, width, selected);
 187 }
 188
 189 static void
 190 outputs_paint(void)
 191 {
 192         list_window_paint2(lw, screen_outputs_paint_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 };