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 */
20 #include "screen_search.h"
21 #include "screen_interface.h"
22 #include "screen_message.h"
23 #include "screen.h"
24 #include "i18n.h"
25 #include "options.h"
26 #include "charset.h"
27 #include "mpdclient.h"
28 #include "strfsong.h"
29 #include "utils.h"
30 #include "screen_utils.h"
31 #include "screen_browser.h"
32 #include "filelist.h"
34 #include <string.h>
35 #include <glib.h>
37 enum {
38 SEARCH_URI = MPD_TAG_COUNT + 100,
39 };
41 static const struct {
42 const char *name;
43 const char *localname;
44 } search_tag[MPD_TAG_COUNT] = {
45 [MPD_TAG_ARTIST] = { "artist", N_("artist") },
46 [MPD_TAG_ALBUM] = { "album", N_("album") },
47 [MPD_TAG_TITLE] = { "title", N_("title") },
48 [MPD_TAG_TRACK] = { "track", N_("track") },
49 [MPD_TAG_NAME] = { "name", N_("name") },
50 [MPD_TAG_GENRE] = { "genre", N_("genre") },
51 [MPD_TAG_DATE] = { "date", N_("date") },
52 [MPD_TAG_COMPOSER] = { "composer", N_("composer") },
53 [MPD_TAG_PERFORMER] = { "performer", N_("performer") },
54 [MPD_TAG_COMMENT] = { "comment", N_("comment") },
55 };
57 static int
58 search_get_tag_id(const char *name)
59 {
60 unsigned i;
62 if (g_ascii_strcasecmp(name, "file") == 0 ||
63 strcasecmp(name, _("file")) == 0)
64 return SEARCH_URI;
66 for (i = 0; i < MPD_TAG_COUNT; ++i)
67 if (search_tag[i].name != NULL &&
68 (strcasecmp(search_tag[i].name, name) == 0 ||
69 strcasecmp(search_tag[i].localname, name) == 0))
70 return i;
72 return -1;
73 }
75 #define SEARCH_ARTIST_TITLE 999
77 typedef struct {
78 enum mpd_tag_type table;
79 const char *label;
80 } search_type_t;
82 static search_type_t mode[] = {
83 { MPD_TAG_TITLE, N_("Title") },
84 { MPD_TAG_ARTIST, N_("Artist") },
85 { MPD_TAG_ALBUM, N_("Album") },
86 { SEARCH_URI, N_("file") },
87 { SEARCH_ARTIST_TITLE, N_("Artist + Title") },
88 { 0, NULL }
89 };
91 static GList *search_history = NULL;
92 static gchar *pattern = NULL;
93 static gboolean advanced_search_mode = FALSE;
95 static struct screen_browser browser;
97 static const char *const help_text[] = {
98 "Quick - Enter a string and ncmpc will search according",
99 " to the current search mode (displayed above).",
100 "",
101 "Advanced - <tag>:<search term> [<tag>:<search term>...]",
102 " Example: artist:radiohead album:pablo honey",
103 "",
104 " Available tags: artist, album, title, track,",
105 " name, genre, date composer, performer, comment, file",
106 "",
107 };
109 /* search info */
110 static const char *
111 lw_search_help_callback(unsigned idx, G_GNUC_UNUSED bool *highlight,
112 G_GNUC_UNUSED char** sc, G_GNUC_UNUSED void *data)
113 {
114 assert(idx < G_N_ELEMENTS(help_text));
116 return help_text[idx];
117 }
119 static void
120 screen_search_paint(void);
122 static void
123 search_repaint(void)
124 {
125 screen_search_paint();
126 wrefresh(browser.lw->w);
127 }
129 /* sanity check search mode value */
130 static void
131 search_check_mode(void)
132 {
133 int max = 0;
135 while (mode[max].label != NULL)
136 max++;
137 if (options.search_mode < 0)
138 options.search_mode = 0;
139 else if (options.search_mode >= max)
140 options.search_mode = max-1;
141 }
143 static void
144 search_clear(bool clear_pattern)
145 {
146 if (browser.filelist) {
147 filelist_free(browser.filelist);
148 browser.filelist = filelist_new();
149 list_window_set_length(browser.lw, 0);
150 }
151 if (clear_pattern && pattern) {
152 g_free(pattern);
153 pattern = NULL;
154 }
155 }
157 static struct filelist *
158 search_simple_query(struct mpd_connection *connection, bool exact_match,
159 int table, gchar *local_pattern)
160 {
161 struct filelist *list;
162 gchar *filter_utf8 = locale_to_utf8(local_pattern);
164 if (table == SEARCH_ARTIST_TITLE) {
165 mpd_command_list_begin(connection, false);
167 mpd_search_db_songs(connection, exact_match);
168 mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
169 MPD_TAG_ARTIST, filter_utf8);
170 mpd_search_commit(connection);
172 mpd_search_db_songs(connection, exact_match);
173 mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
174 MPD_TAG_TITLE, filter_utf8);
175 mpd_search_commit(connection);
177 mpd_command_list_end(connection);
179 list = filelist_new_recv(connection);
180 filelist_no_duplicates(list);
181 } else if (table == SEARCH_URI) {
182 mpd_search_db_songs(connection, exact_match);
183 mpd_search_add_uri_constraint(connection, MPD_OPERATOR_DEFAULT,
184 filter_utf8);
185 mpd_search_commit(connection);
187 list = filelist_new_recv(connection);
188 } else {
189 mpd_search_db_songs(connection, exact_match);
190 mpd_search_add_tag_constraint(connection, MPD_OPERATOR_DEFAULT,
191 table, filter_utf8);
192 mpd_search_commit(connection);
194 list = filelist_new_recv(connection);
195 }
197 g_free(filter_utf8);
198 return list;
199 }
201 /*-----------------------------------------------------------------------
202 * NOTE: This code exists to test a new search ui,
203 * Its ugly and MUST be redesigned before the next release!
204 *-----------------------------------------------------------------------
205 */
206 static struct filelist *
207 search_advanced_query(struct mpd_connection *connection, char *query)
208 {
209 int i,j;
210 char **strv;
211 int table[10];
212 char *arg[10];
213 struct filelist *fl = NULL;
215 advanced_search_mode = FALSE;
216 if (strchr(query, ':') == NULL)
217 return NULL;
219 strv = g_strsplit_set(query, ": ", 0);
221 memset(table, 0, 10*sizeof(int));
222 memset(arg, 0, 10*sizeof(char *));
224 i=0;
225 j=0;
226 while (strv[i] && strlen(strv[i]) > 0 && i < 9) {
227 int id = search_get_tag_id(strv[i]);
228 if (id == -1) {
229 if (table[j]) {
230 char *tmp = arg[j];
231 arg[j] = g_strdup_printf("%s %s", arg[j], strv[i]);
232 g_free(tmp);
233 } else {
234 screen_status_printf(_("Bad search tag %s"), strv[i]);
235 }
236 i++;
237 } else if (strv[i+1] == NULL || strlen(strv[i+1]) == 0) {
238 screen_status_printf(_("No argument for search tag %s"), strv[i]);
239 i++;
240 // j--;
241 //table[j] = -1;
242 } else {
243 table[j] = id;
244 arg[j] = locale_to_utf8(strv[i+1]); // FREE ME
245 j++;
246 table[j] = -1;
247 arg[j] = NULL;
248 i = i + 2;
249 advanced_search_mode = TRUE;
250 }
251 }
253 g_strfreev(strv);
255 if (!advanced_search_mode || j == 0) {
256 for (i = 0; arg[i] != NULL; ++i)
257 g_free(arg[i]);
258 return NULL;
259 }
261 /*-----------------------------------------------------------------------
262 * NOTE (again): This code exists to test a new search ui,
263 * Its ugly and MUST be redesigned before the next release!
264 * + the code below should live in mpdclient.c
265 *-----------------------------------------------------------------------
266 */
267 /** stupid - but this is just a test...... (fulhack) */
268 mpd_search_db_songs(connection, false);
270 for (i = 0; i < 10 && arg[i] != NULL; i++) {
271 if (table[i] == SEARCH_URI)
272 mpd_search_add_uri_constraint(connection,
273 MPD_OPERATOR_DEFAULT,
274 arg[i]);
275 else
276 mpd_search_add_tag_constraint(connection,
277 MPD_OPERATOR_DEFAULT,
278 table[i], arg[i]);
279 }
281 mpd_search_commit(connection);
282 fl = filelist_new_recv(connection);
283 if (!mpd_response_finish(connection)) {
284 filelist_free(fl);
285 fl = NULL;
286 }
288 for (i = 0; arg[i] != NULL; ++i)
289 g_free(arg[i]);
291 return fl;
292 }
294 static struct filelist *
295 do_search(struct mpdclient *c, char *query)
296 {
297 struct mpd_connection *connection = mpdclient_get_connection(c);
298 struct filelist *fl;
300 fl = search_advanced_query(connection, query);
301 if (fl != NULL)
302 return fl;
304 if (mpd_connection_get_error(connection) != MPD_ERROR_SUCCESS) {
305 mpdclient_handle_error(c);
306 return NULL;
307 }
309 fl = search_simple_query(connection, FALSE,
310 mode[options.search_mode].table,
311 query);
312 if (fl == NULL)
313 mpdclient_handle_error(c);
314 return fl;
315 }
317 static void
318 screen_search_reload(struct mpdclient *c)
319 {
320 if (pattern == NULL)
321 return;
323 if (browser.filelist != NULL) {
324 filelist_free(browser.filelist);
325 browser.filelist = NULL;
326 }
328 browser.filelist = do_search(c, pattern);
329 if (browser.filelist == NULL)
330 browser.filelist = filelist_new();
331 list_window_set_length(browser.lw, filelist_length(browser.filelist));
333 screen_browser_sync_highlights(browser.filelist, &c->playlist);
334 }
336 static void
337 search_new(struct mpdclient *c)
338 {
339 if (!mpdclient_is_connected(c))
340 return;
342 search_clear(true);
344 g_free(pattern);
345 pattern = screen_readln(_("Search"),
346 NULL,
347 &search_history,
348 NULL);
350 if (pattern == NULL) {
351 list_window_reset(browser.lw);
352 return;
353 }
355 screen_search_reload(c);
356 }
358 static void
359 screen_search_init(WINDOW *w, int cols, int rows)
360 {
361 browser.lw = list_window_init(w, cols, rows);
362 list_window_set_length(browser.lw, G_N_ELEMENTS(help_text));
363 }
365 static void
366 screen_search_quit(void)
367 {
368 if (search_history)
369 string_list_free(search_history);
370 if (browser.filelist)
371 filelist_free(browser.filelist);
372 list_window_free(browser.lw);
374 if (pattern) {
375 g_free(pattern);
376 pattern = NULL;
377 }
378 }
380 static void
381 screen_search_open(G_GNUC_UNUSED struct mpdclient *c)
382 {
383 // if( pattern==NULL )
384 // search_new(screen, c);
385 // else
386 screen_status_printf(_("Press %s for a new search"),
387 get_key_names(CMD_SCREEN_SEARCH,0));
388 search_check_mode();
389 }
391 static void
392 screen_search_resize(int cols, int rows)
393 {
394 list_window_resize(browser.lw, cols, rows);
395 }
397 static void
398 screen_search_paint(void)
399 {
400 if (browser.filelist) {
401 browser.lw->hide_cursor = false;
402 screen_browser_paint(&browser);
403 } else {
404 browser.lw->hide_cursor = true;
405 list_window_paint(browser.lw, lw_search_help_callback, NULL);
406 }
407 }
409 static const char *
410 screen_search_get_title(char *str, size_t size)
411 {
412 if (advanced_search_mode && pattern)
413 g_snprintf(str, size, _("Search: %s"), pattern);
414 else if (pattern)
415 g_snprintf(str, size,
416 _("Search: Results for %s [%s]"),
417 pattern,
418 _(mode[options.search_mode].label));
419 else
420 g_snprintf(str, size, _("Search: Press %s for a new search [%s]"),
421 get_key_names(CMD_SCREEN_SEARCH,0),
422 _(mode[options.search_mode].label));
424 return str;
425 }
427 static void
428 screen_search_update(struct mpdclient *c)
429 {
430 if (browser.filelist != NULL && c->events & MPD_IDLE_PLAYLIST) {
431 screen_browser_sync_highlights(browser.filelist, &c->playlist);
432 search_repaint();
433 }
434 }
436 static bool
437 screen_search_cmd(struct mpdclient *c, command_t cmd)
438 {
439 switch (cmd) {
440 case CMD_SEARCH_MODE:
441 options.search_mode++;
442 if (mode[options.search_mode].label == NULL)
443 options.search_mode = 0;
444 screen_status_printf(_("Search mode: %s"),
445 _(mode[options.search_mode].label));
446 /* continue and update... */
447 case CMD_SCREEN_UPDATE:
448 screen_search_reload(c);
449 search_repaint();
450 return true;
452 case CMD_SCREEN_SEARCH:
453 search_new(c);
454 search_repaint();
455 return true;
457 case CMD_CLEAR:
458 search_clear(true);
459 list_window_reset(browser.lw);
460 search_repaint();
461 return true;
463 default:
464 break;
465 }
467 if (browser.filelist != NULL &&
468 browser_cmd(&browser, c, cmd)) {
469 if (screen_is_visible(&screen_search))
470 search_repaint();
471 return true;
472 }
474 return false;
475 }
477 const struct screen_functions screen_search = {
478 .init = screen_search_init,
479 .exit = screen_search_quit,
480 .open = screen_search_open,
481 .resize = screen_search_resize,
482 .paint = screen_search_paint,
483 .update = screen_search_update,
484 .cmd = screen_search_cmd,
485 .get_title = screen_search_get_title,
486 };