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 (output_index >= mpd_outputs->len)
  56                 return false;
  57
  58         connection = mpdclient_get_connection(c);
  59         if (connection == NULL)
  60                 return false;
  61
  62         output = g_ptr_array_index(mpd_outputs, output_index);
  63
  64         if (!mpd_output_get_enabled(output)) {
  65                 if (!mpd_run_enable_output(connection,
  66                                            mpd_output_get_id(output))) {
  67                         mpdclient_handle_error(c);
  68                         return false;
  69                 }
  70
  71                 c->events |= MPD_IDLE_OUTPUT;
  72
  73                 screen_status_printf(_("Output '%s' enabled"),
  74                                      mpd_output_get_name(output));
  75         } else {
  76                 if (!mpd_run_disable_output(connection,
  77                                             mpd_output_get_id(output))) {
  78                         mpdclient_handle_error(c);
  79                         return false;
  80                 }
  81
  82                 c->events |= MPD_IDLE_OUTPUT;
  83
  84                 screen_status_printf(_("Output '%s' disabled"),
  85                                      mpd_output_get_name(output));
  86         }
  87
  88         return true;
  89 }
  90
  91 static void
  92 clear_output_element(gpointer data, G_GNUC_UNUSED gpointer user_data)
  93 {
  94         mpd_output_free(data);
  95 }
  96
  97 static void
  98 clear_outputs_list(void)
  99 {
 100         assert(mpd_outputs != NULL);
 101
 102         if (mpd_outputs->len <= 0)
 103                 return;
 104
 105         g_ptr_array_foreach(mpd_outputs, clear_output_element, NULL);
 106         g_ptr_array_remove_range(mpd_outputs, 0, mpd_outputs->len);
 107
 108         /* not updating the list_window length here, because that
 109            would clear the cursor position, and fill_outputs_list()
 110            will be called after this function anyway */
 111         /* list_window_set_length(lw, 0); */
 112 }
 113
 114 static void
 115 fill_outputs_list(struct mpdclient *c)
 116 {
 117         struct mpd_connection *connection;
 118         struct mpd_output *output;
 119
 120         assert(mpd_outputs != NULL);
 121
 122         connection = mpdclient_get_connection(c);
 123         if (connection == NULL)
 124                 return;
 125
 126         mpd_send_outputs(connection);
 127         while ((output = mpd_recv_output(connection)) != NULL) {
 128                 g_ptr_array_add(mpd_outputs, output);
 129         }
 130
 131         if (!mpd_response_finish(connection))
 132                 mpdclient_handle_error(c);
 133
 134         list_window_set_length(lw, mpd_outputs->len);
 135 }
 136
 137 static void
 138 outputs_init(WINDOW *w, int cols, int rows)
 139 {
 140         lw = list_window_init(w, cols, rows);
 141
 142         mpd_outputs = g_ptr_array_new();
 143 }
 144
 145 static void
 146 outputs_resize(int cols, int rows)
 147 {
 148         list_window_resize(lw, cols, rows);
 149 }
 150
 151 static void
 152 outputs_exit(void)
 153 {
 154         list_window_free(lw);
 155
 156         g_ptr_array_free(mpd_outputs, TRUE);
 157 }
 158
 159 static void
 160 outputs_open(struct mpdclient *c)
 161 {
 162         fill_outputs_list(c);
 163 }
 164
 165 static void
 166 outputs_close(void)
 167 {
 168         clear_outputs_list();
 169 }
 170
 171 static const char *
 172 outputs_title(G_GNUC_UNUSED char *str, G_GNUC_UNUSED size_t size)
 173 {
 174         return _("Outputs");
 175 }
 176
 177 static void
 178 screen_outputs_paint_callback(WINDOW *w, unsigned i,
 179                               G_GNUC_UNUSED unsigned y, unsigned width,
 180                               bool selected, G_GNUC_UNUSED void *data)
 181 {
 182         const struct mpd_output *output;
 183
 184         assert(mpd_outputs != NULL);
 185         assert(i < mpd_outputs->len);
 186
 187         output = g_ptr_array_index(mpd_outputs, i);
 188
 189         row_color(w, COLOR_LIST, selected);
 190         waddstr(w, mpd_output_get_enabled(output) ? "[X] " : "[ ] ");
 191         waddstr(w, mpd_output_get_name(output));
 192         row_clear_to_eol(w, width, selected);
 193 }
 194
 195 static void
 196 outputs_paint(void)
 197 {
 198         list_window_paint2(lw, screen_outputs_paint_callback, NULL);
 199 }
 200
 201 static void
 202 screen_outputs_update(struct mpdclient *c)
 203 {
 204         if (c->events & MPD_IDLE_OUTPUT) {
 205                 clear_outputs_list();
 206                 fill_outputs_list(c);
 207                 outputs_repaint();
 208         }
 209 }
 210
 211 static bool
 212 outputs_cmd(struct mpdclient *c, command_t cmd)
 213 {
 214         assert(mpd_outputs != NULL);
 215
 216         if (list_window_cmd(lw, cmd)) {
 217                 outputs_repaint();
 218                 return true;
 219         }
 220
 221         switch (cmd) {
 222         case CMD_PLAY:
 223                 toggle_output(c, lw->selected);
 224                 return true;
 225
 226         case CMD_SCREEN_UPDATE:
 227                 clear_outputs_list();
 228                 fill_outputs_list(c);
 229                 outputs_repaint();
 230                 return true;
 231
 232         default:
 233                 break;
 234         }
 235
 236         return false;
 237 }
 238
 239 const struct screen_functions screen_outputs = {
 240         .init      = outputs_init,
 241         .exit      = outputs_exit,
 242         .open      = outputs_open,
 243         .close     = outputs_close,
 244         .resize    = outputs_resize,
 245         .paint     = outputs_paint,
 246         .update = screen_outputs_update,
 247         .cmd       = outputs_cmd,
 248         .get_title = outputs_title,
 249 };