src/screen_search.c

   1 /*
   2  * (c) 2004 by Kalle Wallin <kaw@linux.se>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  *
  17  */
  18
  19 #include "i18n.h"
  20 #include "options.h"
  21 #include "support.h"
  22 #include "mpdclient.h"
  23 #include "strfsong.h"
  24 #include "command.h"
  25 #include "screen.h"
  26 #include "utils.h"
  27 #include "screen_utils.h"
  28 #include "screen_browser.h"
  29 #include "gcc.h"
  30
  31 #include <ctype.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include <glib.h>
  35 #include <ncurses.h>
  36
  37 /* new search stuff with qball's libmpdclient */
  38 #define FUTURE
  39
  40 #ifdef FUTURE
  41
  42 extern gint mpdclient_finish_command(mpdclient_t *c);
  43
  44 typedef struct {
  45         int id;
  46         const char *name;
  47         const char *localname;
  48 } search_tag_t;
  49
  50 static search_tag_t search_tag[] = {
  51         { MPD_TAG_ITEM_ARTIST, "artist", N_("artist") },
  52         { MPD_TAG_ITEM_ALBUM, "album", N_("album") },
  53         { MPD_TAG_ITEM_TITLE, "title", N_("title") },
  54         { MPD_TAG_ITEM_TRACK, "track", N_("track") },
  55         { MPD_TAG_ITEM_NAME, "name", N_("name") },
  56         { MPD_TAG_ITEM_GENRE, "genre", N_("genre") },
  57         { MPD_TAG_ITEM_DATE, "date", N_("date") },
  58         { MPD_TAG_ITEM_COMPOSER, "composer", N_("composer") },
  59         { MPD_TAG_ITEM_PERFORMER, "performer", N_("performer") },
  60         { MPD_TAG_ITEM_COMMENT, "comment", N_("comment") },
  61         { MPD_TAG_ITEM_FILENAME, "filename", N_("file") },
  62         { -1, NULL, NULL }
  63 };
  64
  65 static int
  66 search_get_tag_id(char *name)
  67 {
  68         int i = 0;
  69
  70         while (search_tag[i].name) {
  71                 if (strcasecmp(search_tag[i].name, name) == 0 ||
  72                     strcasecmp(search_tag[i].localname, name) == 0)
  73                         return search_tag[i].id;
  74                 i++;
  75         }
  76
  77         return -1;
  78 }
  79
  80 #endif
  81
  82 #define SEARCH_TITLE    0
  83 #define SEARCH_ARTIST   1
  84 #define SEARCH_ALBUM    2
  85 #define SEARCH_FILE     3
  86
  87 #define SEARCH_ARTIST_TITLE 999
  88
  89 typedef struct {
  90         int table;
  91         const char *label;
  92 } search_type_t;
  93
  94 static search_type_t mode[] = {
  95         { MPD_TABLE_TITLE, N_("Title") },
  96         { MPD_TABLE_ARTIST, N_("Artist") },
  97         { MPD_TABLE_ALBUM, N_("Album") },
  98         { MPD_TABLE_FILENAME, N_("Filename") },
  99         { SEARCH_ARTIST_TITLE, N_("Artist + Title") },
 100         { 0, NULL }
 101 };
 102
 103 static GList *search_history = NULL;
 104 static gchar *pattern = NULL;
 105 static gboolean advanced_search_mode = FALSE;
 106
 107 static struct screen_browser browser;
 108
 109
 110 /* search info */
 111 static const char *
 112 lw_search_help_callback(unsigned idx, mpd_unused int *highlight,
 113                         mpd_unused void *data)
 114 {
 115         unsigned text_rows;
 116         static const char *text[] = {
 117                 "Quick  - just enter a string and ncmpc will search according",
 118                 "               to the current search mode (displayed above).",
 119                 "",
 120                 "Advanced  -  <tag>:<search term> [<tag>:<search term>...]",
 121                 "                       Example: artist:radiohead album:pablo honey",
 122                 "",
 123                 "                  avalible tags: artist, album, title, track,",
 124                 "                  name, genre, date composer, performer, comment, file",
 125                 "",
 126                 NULL
 127         };
 128
 129         text_rows=0;
 130         while (text[text_rows])
 131                 text_rows++;
 132
 133         if (idx < text_rows)
 134                 return text[idx];
 135         return NULL;
 136 }
 137
 138 static void
 139 paint(mpdclient_t *c);
 140
 141 static void
 142 search_repaint(void)
 143 {
 144         paint(NULL);
 145         wrefresh(browser.lw->w);
 146 }
 147
 148 static void
 149 search_repaint_if_active(void)
 150 {
 151         if (screen_is_visible(&screen_search))
 152                 search_repaint();
 153 }
 154
 155 /* the playlist have been updated -> fix highlights */
 156 static void
 157 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
 158 {
 159         browser_playlist_changed(&browser, c, event, data);
 160         search_repaint_if_active();
 161 }
 162
 163 /* sanity check search mode value */
 164 static void
 165 search_check_mode(void)
 166 {
 167         int max = 0;
 168
 169         while (mode[max].label != NULL)
 170                 max++;
 171         if (options.search_mode < 0)
 172                 options.search_mode = 0;
 173         else if (options.search_mode >= max)
 174                 options.search_mode = max-1;
 175 }
 176
 177 static void
 178 search_clear(mpd_unused screen_t *screen, mpdclient_t *c,
 179              gboolean clear_pattern)
 180 {
 181         if (browser.filelist) {
 182                 mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 183                 filelist_free(browser.filelist);
 184                 browser.filelist = filelist_new(NULL);
 185         }
 186         if (clear_pattern && pattern) {
 187                 g_free(pattern);
 188                 pattern = NULL;
 189         }
 190 }
 191
 192 #ifdef FUTURE
 193 static mpdclient_filelist_t *
 194 filelist_search(mpdclient_t *c, mpd_unused int exact_match, int table,
 195                 gchar *local_pattern)
 196 {
 197         mpdclient_filelist_t *list, *list2;
 198
 199         if (table == SEARCH_ARTIST_TITLE) {
 200                 list = mpdclient_filelist_search(c, FALSE, MPD_TABLE_ARTIST,
 201                                                  local_pattern);
 202                 if (list == NULL)
 203                         list = filelist_new(NULL);
 204
 205                 list2 = mpdclient_filelist_search(c, FALSE, MPD_TABLE_TITLE,
 206                                                   local_pattern);
 207                 if (list2 != NULL) {
 208                         filelist_move(list, list2);
 209                         filelist_free(list2);
 210                 }
 211
 212                 filelist_sort(list, compare_filelistentry_format);
 213         } else {
 214                 list = mpdclient_filelist_search(c, FALSE, table, local_pattern);
 215                 if (list == NULL)
 216                         list = filelist_new(NULL);
 217         }
 218
 219         return list;
 220 }
 221
 222 /*-----------------------------------------------------------------------
 223  * NOTE: This code exists to test a new search ui,
 224  *       Its ugly and MUST be redesigned before the next release!
 225  *-----------------------------------------------------------------------
 226  */
 227 static mpdclient_filelist_t *
 228 search_advanced_query(char *query, mpdclient_t *c)
 229 {
 230         int i,j;
 231         char **strv;
 232         int table[10];
 233         char *arg[10];
 234         mpdclient_filelist_t *fl = NULL;
 235
 236         advanced_search_mode = FALSE;
 237         if( g_strrstr(query, ":") == NULL )
 238                 return NULL;
 239
 240         strv = g_strsplit_set(query, ": ", 0);
 241
 242         i=0;
 243         while (strv[i]) {
 244                 i++;
 245         }
 246
 247         memset(table, 0, 10*sizeof(int));
 248         memset(arg, 0, 10*sizeof(char *));
 249
 250         i=0;
 251         j=0;
 252         while (strv[i] && strlen(strv[i]) > 0 && i < 9) {
 253                 int id = search_get_tag_id(strv[i]);
 254                 if (id == -1) {
 255                         if (table[j]) {
 256                                 char *tmp = arg[j];
 257                                 arg[j] = g_strdup_printf("%s %s", arg[j], strv[i]);
 258                                 g_free(tmp);
 259                         } else {
 260                                 screen_status_printf(_("Bad search tag %s"), strv[i]);
 261                         }
 262                         i++;
 263                 } else if (strv[i+1] == NULL || strlen(strv[i+1]) == 0) {
 264                         screen_status_printf(_("No argument for search tag %s"), strv[i]);
 265                         i++;
 266                         //        j--;
 267                         //table[j] = -1;
 268                 } else {
 269                         table[j] = id;
 270                         arg[j] = locale_to_utf8(strv[i+1]); // FREE ME
 271                         j++;
 272                         table[j] = -1;
 273                         arg[j] = NULL;
 274                         i = i + 2;
 275                         advanced_search_mode = TRUE;
 276                 }
 277         }
 278
 279         g_strfreev(strv);
 280
 281
 282         if (advanced_search_mode && j > 0) {
 283                 int iter;
 284                 mpd_InfoEntity *entity;
 285
 286                 /*-----------------------------------------------------------------------
 287                  * NOTE (again): This code exists to test a new search ui,
 288                  *               Its ugly and MUST be redesigned before the next release!
 289                  *             + the code below should live in mpdclient.c
 290                  *-----------------------------------------------------------------------
 291                  */
 292                 /** stupid - but this is just a test...... (fulhack)  */
 293                 mpd_startSearch(c->connection, FALSE);
 294
 295                 for(iter = 0; iter < 10; iter++) {
 296                         mpd_addConstraintSearch(c->connection, table[iter], arg[iter]);
 297                 }
 298
 299                 mpd_commitSearch(c->connection);
 300
 301                 fl = g_malloc0(sizeof(mpdclient_filelist_t));
 302
 303                 while ((entity=mpd_getNextInfoEntity(c->connection)))
 304                         filelist_append(fl, entity);
 305
 306                 if (mpdclient_finish_command(c) && fl)
 307                         filelist_free(fl);
 308         }
 309
 310         i=0;
 311         while( arg[i] )
 312                 g_free(arg[i++]);
 313
 314         return fl;
 315 }
 316 #else
 317 #define search_advanced_query(pattern,c) (NULL)
 318 #endif
 319
 320 static void
 321 search_new(screen_t *screen, mpdclient_t *c)
 322 {
 323         search_clear(screen, c, TRUE);
 324
 325         pattern = screen_readln(screen->status_window.w,
 326                                 _("Search: "),
 327                                 NULL,
 328                                 &search_history,
 329                                 NULL);
 330
 331         if (pattern && strcmp(pattern,"") == 0) {
 332                 g_free(pattern);
 333                 pattern=NULL;
 334         }
 335
 336         if (pattern == NULL) {
 337                 list_window_reset(browser.lw);
 338                 return;
 339         }
 340
 341         if (!MPD_VERSION_LT(c, 0, 12, 0))
 342                 browser.filelist = search_advanced_query(pattern, c);
 343
 344         if (!advanced_search_mode && browser.filelist == NULL)
 345                 browser.filelist = filelist_search(c, FALSE,
 346                                                   mode[options.search_mode].table,
 347                                                   pattern);
 348
 349         if (browser.filelist == NULL)
 350                 browser.filelist = filelist_new(NULL);
 351
 352         sync_highlights(c, browser.filelist);
 353         mpdclient_install_playlist_callback(c, playlist_changed_callback);
 354         list_window_check_selected(browser.lw, filelist_length(browser.filelist));
 355 }
 356
 357
 358
 359 static void
 360 init(WINDOW *w, int cols, int rows)
 361 {
 362         browser.lw = list_window_init(w, cols, rows);
 363 }
 364
 365 static void
 366 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);
 373
 374         if (pattern) {
 375                 g_free(pattern);
 376                 pattern = NULL;
 377         }
 378 }
 379
 380 static void
 381 open(mpd_unused screen_t *screen, mpd_unused mpdclient_t *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 }
 390
 391 static void
 392 resize(int cols, int rows)
 393 {
 394         browser.lw->cols = cols;
 395         browser.lw->rows = rows;
 396 }
 397
 398 static void
 399 paint(mpd_unused mpdclient_t *c)
 400 {
 401         if (browser.filelist) {
 402                 browser.lw->flags = 0;
 403                 list_window_paint(browser.lw, browser_lw_callback, browser.filelist);
 404         } else {
 405                 browser.lw->flags = LW_HIDE_CURSOR;
 406                 list_window_paint(browser.lw, lw_search_help_callback, NULL);
 407         }
 408 }
 409
 410 static const char *
 411 get_title(char *str, size_t size)
 412 {
 413         if (advanced_search_mode && pattern)
 414                 g_snprintf(str, size, _("Search: %s"), pattern);
 415         else if (pattern)
 416                 g_snprintf(str, size,
 417                            _("Search: Results for %s [%s]"),
 418                            pattern,
 419                            _(mode[options.search_mode].label));
 420         else
 421                 g_snprintf(str, size, _("Search: Press %s for a new search [%s]"),
 422                            get_key_names(CMD_SCREEN_SEARCH,0),
 423                            _(mode[options.search_mode].label));
 424
 425         return str;
 426 }
 427
 428 static int
 429 search_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 430 {
 431         switch (cmd) {
 432         case CMD_SEARCH_MODE:
 433                 options.search_mode++;
 434                 if (mode[options.search_mode].label == NULL)
 435                         options.search_mode = 0;
 436                 screen_status_printf(_("Search mode: %s"),
 437                                      _(mode[options.search_mode].label));
 438                 /* continue and update... */
 439         case CMD_SCREEN_UPDATE:
 440                 if (pattern) {
 441                         search_clear(screen, c, FALSE);
 442                         browser.filelist = filelist_search(c,
 443                                                           FALSE,
 444                                                           mode[options.search_mode].table,
 445                                                           pattern);
 446                         sync_highlights(c, browser.filelist);
 447                 }
 448                 search_repaint();
 449                 return 1;
 450
 451         case CMD_SCREEN_SEARCH:
 452                 search_new(screen, c);
 453                 search_repaint();
 454                 return 1;
 455
 456         case CMD_CLEAR:
 457                 search_clear(screen, c, TRUE);
 458                 list_window_reset(browser.lw);
 459                 search_repaint();
 460                 return 1;
 461
 462         default:
 463                 break;
 464         }
 465
 466         if (browser.filelist != NULL &&
 467             browser_cmd(&browser, screen, c, cmd)) {
 468                 search_repaint();
 469                 return 1;
 470         }
 471
 472         return 0;
 473 }
 474
 475 const struct screen_functions screen_search = {
 476         .init = init,
 477         .exit = quit,
 478         .open = open,
 479         .resize = resize,
 480         .paint = paint,
 481         .cmd = search_cmd,
 482         .get_title = get_title,
 483 };