1 /* ncmpc (Ncurses MPD Client)
2 * (c) 2004-2009 The Music Player Daemon Project
3 * Project homepage: http://musicpd.org
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.
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.
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 #include "config.h"
20 #include "i18n.h"
21 #include "options.h"
22 #include "charset.h"
23 #include "mpdclient.h"
24 #include "command.h"
25 #include "screen.h"
26 #include "screen_utils.h"
27 #include "screen_browser.h"
28 #include "screen_play.h"
30 #include <ctype.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <glib.h>
35 static struct screen_browser browser;
37 static void
38 browse_paint(void);
40 static void
41 file_repaint(void)
42 {
43 browse_paint();
44 wrefresh(browser.lw->w);
45 }
47 static void
48 file_repaint_if_active(void)
49 {
50 if (screen_is_visible(&screen_browse))
51 file_repaint();
52 }
54 /* the db has changed -> update the filelist */
55 static void
56 file_changed_callback(mpdclient_t *c, G_GNUC_UNUSED int event,
57 G_GNUC_UNUSED gpointer data)
58 {
59 browser.filelist = mpdclient_filelist_update(c, browser.filelist);
60 #ifndef NCMPC_MINI
61 sync_highlights(c, browser.filelist);
62 #endif
63 list_window_check_selected(browser.lw, filelist_length(browser.filelist));
65 file_repaint_if_active();
66 }
68 #ifndef NCMPC_MINI
69 /* the playlist has been updated -> fix highlights */
70 static void
71 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
72 {
73 browser_playlist_changed(&browser, c, event, data);
75 file_repaint_if_active();
76 }
77 #endif
79 static bool
80 file_change_directory(mpdclient_t *c, filelist_entry_t *entry,
81 const char *new_path)
82 {
83 mpd_InfoEntity *entity = NULL;
84 gchar *path = NULL;
85 char *old_path;
86 int idx;
88 if( entry!=NULL )
89 entity = entry->entity;
90 else if( new_path==NULL )
91 return false;
93 if( entity==NULL ) {
94 if( entry || 0==strcmp(new_path, "..") ) {
95 /* return to parent */
96 char *parent = g_path_get_dirname(browser.filelist->path);
97 if( strcmp(parent, ".") == 0 )
98 parent[0] = '\0';
99 path = g_strdup(parent);
100 g_free(parent);
101 } else {
102 /* entry==NULL, then new_path ("" is root) */
103 path = g_strdup(new_path);
104 }
105 } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY) {
106 /* enter sub */
107 mpd_Directory *dir = entity->info.directory;
108 path = g_strdup(dir->path);
109 } else
110 return false;
112 if (browser.filelist != NULL) {
113 old_path = g_strdup(browser.filelist->path);
114 filelist_free(browser.filelist);
115 } else
116 old_path = NULL;
118 browser.filelist = mpdclient_filelist_get(c, path);
119 #ifndef NCMPC_MINI
120 sync_highlights(c, browser.filelist);
121 #endif
123 idx = old_path != NULL
124 ? filelist_find_directory(browser.filelist, old_path)
125 : -1;
126 g_free(old_path);
128 list_window_reset(browser.lw);
129 if (idx >= 0) {
130 list_window_set_selected(browser.lw, idx);
131 list_window_center(browser.lw,
132 filelist_length(browser.filelist), idx);
133 }
135 g_free(path);
136 return true;
137 }
139 static bool
140 file_handle_enter(struct mpdclient *c)
141 {
142 struct filelist_entry *entry = browser_get_selected_entry(&browser);
143 struct mpd_InfoEntity *entity;
145 if (entry == NULL)
146 return false;
148 entity = entry->entity;
149 if (entity == NULL || entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY)
150 return file_change_directory(c, entry, NULL);
151 else
152 return false;
153 }
155 static int
156 handle_save(mpdclient_t *c)
157 {
158 filelist_entry_t *entry;
159 char *defaultname = NULL;
160 int ret;
161 unsigned selected;
163 if (browser.lw->selected >= filelist_length(browser.filelist))
164 return -1;
166 for(selected = browser.lw->selected_start; selected <= browser.lw->selected_end; ++selected)
167 {
168 entry = filelist_get(browser.filelist, selected);
169 if( entry && entry->entity ) {
170 mpd_InfoEntity *entity = entry->entity;
171 if( entity->type==MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
172 mpd_PlaylistFile *plf = entity->info.playlistFile;
173 defaultname = plf->path;
174 }
175 }
176 }
178 if(defaultname)
179 defaultname = utf8_to_locale(defaultname);
180 ret = playlist_save(c, NULL, defaultname);
181 g_free(defaultname);
183 return ret;
184 }
186 static int
187 handle_delete(mpdclient_t *c)
188 {
189 filelist_entry_t *entry;
190 mpd_InfoEntity *entity;
191 mpd_PlaylistFile *plf;
192 char *str, *buf;
193 int key;
194 unsigned selected;
196 for(selected = browser.lw->selected_start; selected <= browser.lw->selected_end; ++selected)
197 {
198 if (selected >= filelist_length(browser.filelist))
199 return -1;
201 entry = filelist_get(browser.filelist, selected);
202 if( entry==NULL || entry->entity==NULL )
203 continue;
205 entity = entry->entity;
207 if( entity->type!=MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
208 /* translators: the "delete" command is only possible
209 for playlists; the user attempted to delete a song
210 or a directory or something else */
211 screen_status_printf(_("Deleting this item is not possible"));
212 screen_bell();
213 continue;
214 }
216 plf = entity->info.playlistFile;
217 str = utf8_to_locale(g_basename(plf->path));
218 buf = g_strdup_printf(_("Delete playlist %s [%s/%s] ? "), str, YES, NO);
219 g_free(str);
220 key = tolower(screen_getch(screen.status_window.w, buf));
221 g_free(buf);
222 if( key != YES[0] ) {
223 /* translators: a dialog was aborted by the user */
224 screen_status_printf(_("Aborted"));
225 return 0;
226 }
228 if( mpdclient_cmd_delete_playlist(c, plf->path) )
229 continue;
231 /* translators: MPD deleted the playlist, as requested by the
232 user */
233 screen_status_printf(_("Playlist deleted"));
234 }
235 return 0;
236 }
238 static void
239 browse_init(WINDOW *w, int cols, int rows)
240 {
241 browser.lw = list_window_init(w, cols, rows);
242 }
244 static void
245 browse_resize(int cols, int rows)
246 {
247 browser.lw->cols = cols;
248 browser.lw->rows = rows;
249 }
251 static void
252 browse_exit(void)
253 {
254 if (browser.filelist)
255 filelist_free(browser.filelist);
256 list_window_free(browser.lw);
257 }
259 static void
260 browse_open(G_GNUC_UNUSED mpdclient_t *c)
261 {
262 if (browser.filelist == NULL) {
263 browser.filelist = mpdclient_filelist_get(c, "");
264 #ifndef NCMPC_MINI
265 mpdclient_install_playlist_callback(c, playlist_changed_callback);
266 #endif
267 mpdclient_install_browse_callback(c, file_changed_callback);
268 }
269 }
271 static const char *
272 browse_title(char *str, size_t size)
273 {
274 const char *path = NULL, *prev = NULL, *slash = browser.filelist->path;
275 char *path_locale;
277 /* determine the last 2 parts of the path */
278 while ((slash = strchr(slash, '/')) != NULL) {
279 path = prev;
280 prev = ++slash;
281 }
283 if (path == NULL)
284 /* fall back to full path */
285 path = browser.filelist->path;
287 path_locale = utf8_to_locale(path);
288 g_snprintf(str, size, "%s: %s",
289 /* translators: caption of the browser screen */
290 _("Browse"), path_locale);
291 g_free(path_locale);
292 return str;
293 }
295 static void
296 browse_paint(void)
297 {
298 list_window_paint(browser.lw, browser_lw_callback, browser.filelist);
299 }
301 static bool
302 browse_cmd(mpdclient_t *c, command_t cmd)
303 {
304 switch(cmd) {
305 case CMD_PLAY:
306 if (file_handle_enter(c))
307 return true;
308 break;
310 case CMD_GO_ROOT_DIRECTORY:
311 file_change_directory(c, NULL, "");
312 file_repaint();
313 return true;
314 case CMD_GO_PARENT_DIRECTORY:
315 file_change_directory(c, NULL, "..");
316 file_repaint();
317 return true;
319 case CMD_LOCATE:
320 /* don't let browser_cmd() evaluate the locate command
321 - it's a no-op, and by the way, leads to a
322 segmentation fault in the current implementation */
323 return false;
325 case CMD_DELETE:
326 handle_delete(c);
327 file_repaint();
328 break;
329 case CMD_SAVE_PLAYLIST:
330 handle_save(c);
331 break;
332 case CMD_SCREEN_UPDATE:
333 browser.filelist = mpdclient_filelist_update(c, browser.filelist);
334 #ifndef NCMPC_MINI
335 sync_highlights(c, browser.filelist);
336 #endif
337 list_window_check_selected(browser.lw,
338 filelist_length(browser.filelist));
339 file_repaint();
340 return false;
342 case CMD_DB_UPDATE:
343 if (c->status == NULL)
344 return true;
346 if (!c->status->updatingDb) {
347 if (mpdclient_cmd_db_update(c, browser.filelist->path) == 0) {
348 if (strcmp(browser.filelist->path, "")) {
349 char *path_locale =
350 utf8_to_locale(browser.filelist->path);
351 screen_status_printf(_("Database update of %s started"),
352 path_locale);
353 g_free(path_locale);
354 } else
355 screen_status_printf(_("Database update started"));
356 }
357 } else
358 screen_status_printf(_("Database update running..."));
359 return true;
361 default:
362 break;
363 }
365 if (browser_cmd(&browser, c, cmd)) {
366 if (screen_is_visible(&screen_browse))
367 file_repaint();
368 return true;
369 }
371 return false;
372 }
374 const struct screen_functions screen_browse = {
375 .init = browse_init,
376 .exit = browse_exit,
377 .open = browse_open,
378 .resize = browse_resize,
379 .paint = browse_paint,
380 .cmd = browse_cmd,
381 .get_title = browse_title,
382 };
384 bool
385 screen_file_goto_song(struct mpdclient *c, const struct mpd_song *song)
386 {
387 const char *slash, *parent;
388 char *allocated = NULL;
389 bool ret;
390 int i;
392 assert(song != NULL);
393 assert(song->file != NULL);
395 if (strstr(song->file, "//") != NULL)
396 /* an URL? */
397 return false;
399 /* determine the song's parent directory and go there */
401 slash = strrchr(song->file, '/');
402 if (slash != NULL)
403 parent = allocated = g_strndup(song->file, slash - song->file);
404 else
405 parent = "";
407 ret = file_change_directory(c, NULL, parent);
408 g_free(allocated);
409 if (!ret)
410 return false;
412 /* select the specified song */
414 i = filelist_find_song(browser.filelist, song);
415 if (i < 0)
416 i = 0;
418 list_window_set_selected(browser.lw, i);
420 /* finally, switch to the file screen */
421 screen_switch(&screen_browse, c);
422 return true;
423 }