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 "charset.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 extern gint mpdclient_finish_command(mpdclient_t *c);
  38
  39 typedef struct {
  40         int id;
  41         const char *name;
  42         const char *localname;
  43 } search_tag_t;
  44
  45 static search_tag_t search_tag[] = {
  46         { MPD_TAG_ITEM_ARTIST, "artist", N_("artist") },
  47         { MPD_TAG_ITEM_ALBUM, "album", N_("album") },
  48         { MPD_TAG_ITEM_TITLE, "title", N_("title") },
  49         { MPD_TAG_ITEM_TRACK, "track", N_("track") },
  50         { MPD_TAG_ITEM_NAME, "name", N_("name") },
  51         { MPD_TAG_ITEM_GENRE, "genre", N_("genre") },
  52         { MPD_TAG_ITEM_DATE, "date", N_("date") },
  53         { MPD_TAG_ITEM_COMPOSER, "composer", N_("composer") },
  54         { MPD_TAG_ITEM_PERFORMER, "performer", N_("performer") },
  55         { MPD_TAG_ITEM_COMMENT, "comment", N_("comment") },
  56         { MPD_TAG_ITEM_FILENAME, "filename", N_("file") },
  57         { -1, NULL, NULL }
  58 };
  59
  60 static int
  61 search_get_tag_id(char *name)
  62 {
  63         int i = 0;
  64
  65         while (search_tag[i].name) {
  66                 if (strcasecmp(search_tag[i].name, name) == 0 ||
  67                     strcasecmp(search_tag[i].localname, name) == 0)
  68                         return search_tag[i].id;
  69                 i++;
  70         }
  71
  72         return -1;
  73 }
  74
  75 #define SEARCH_TITLE    0
  76 #define SEARCH_ARTIST   1
  77 #define SEARCH_ALBUM    2
  78 #define SEARCH_FILE     3
  79
  80 #define SEARCH_ARTIST_TITLE 999
  81
  82 typedef struct {
  83         int table;
  84         const char *label;
  85 } search_type_t;
  86
  87 static search_type_t mode[] = {
  88         { MPD_TABLE_TITLE, N_("Title") },
  89         { MPD_TABLE_ARTIST, N_("Artist") },
  90         { MPD_TABLE_ALBUM, N_("Album") },
  91         { MPD_TABLE_FILENAME, N_("Filename") },
  92         { SEARCH_ARTIST_TITLE, N_("Artist + Title") },
  93         { 0, NULL }
  94 };
  95
  96 static GList *search_history = NULL;
  97 static gchar *pattern = NULL;
  98 static gboolean advanced_search_mode = FALSE;
  99
 100 static struct screen_browser browser;
 101
 102
 103 /* search info */
 104 static const char *
 105 lw_search_help_callback(unsigned idx, mpd_unused int *highlight,
 106                         mpd_unused void *data)
 107 {
 108         unsigned text_rows;
 109         static const char *text[] = {
 110                 "Quick  - just enter a string and ncmpc will search according",
 111                 "               to the current search mode (displayed above).",
 112                 "",
 113                 "Advanced  -  <tag>:<search term> [<tag>:<search term>...]",
 114                 "                       Example: artist:radiohead album:pablo honey",
 115                 "",
 116                 "                  avalible tags: artist, album, title, track,",
 117                 "                  name, genre, date composer, performer, comment, file",
 118                 "",
 119                 NULL
 120         };
 121
 122         text_rows=0;
 123         while (text[text_rows])
 124                 text_rows++;
 125
 126         if (idx < text_rows)
 127                 return text[idx];
 128         return NULL;
 129 }
 130
 131 static void
 132 paint(mpdclient_t *c);
 133
 134 static void
 135 search_repaint(void)
 136 {
 137         paint(NULL);
 138         wrefresh(browser.lw->w);
 139 }
 140
 141 static void
 142 search_repaint_if_active(void)
 143 {
 144         if (screen_is_visible(&screen_search))
 145                 search_repaint();
 146 }
 147
 148 /* the playlist have been updated -> fix highlights */
 149 static void
 150 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
 151 {
 152         browser_playlist_changed(&browser, c, event, data);
 153         search_repaint_if_active();
 154 }
 155
 156 /* sanity check search mode value */
 157 static void
 158 search_check_mode(void)
 159 {
 160         int max = 0;
 161
 162         while (mode[max].label != NULL)
 163                 max++;
 164         if (options.search_mode < 0)
 165                 options.search_mode = 0;
 166         else if (options.search_mode >= max)
 167                 options.search_mode = max-1;
 168 }
 169
 170 static void
 171 search_clear(mpd_unused screen_t *screen, mpdclient_t *c,
 172              gboolean clear_pattern)
 173 {
 174         if (browser.filelist) {
 175                 mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 176                 filelist_free(browser.filelist);
 177                 browser.filelist = filelist_new(NULL);
 178         }
 179         if (clear_pattern && pattern) {
 180                 g_free(pattern);
 181                 pattern = NULL;
 182         }
 183 }
 184
 185 static mpdclient_filelist_t *
 186 filelist_search(mpdclient_t *c, mpd_unused int exact_match, int table,
 187                 gchar *local_pattern)
 188 {
 189         mpdclient_filelist_t *list, *list2;
 190
 191         if (table == SEARCH_ARTIST_TITLE) {
 192                 list = mpdclient_filelist_search(c, FALSE, MPD_TABLE_ARTIST,
 193                                                  local_pattern);
 194                 if (list == NULL)
 195                         list = filelist_new(NULL);
 196
 197                 list2 = mpdclient_filelist_search(c, FALSE, MPD_TABLE_TITLE,
 198                                                   local_pattern);
 199                 if (list2 != NULL) {
 200                         filelist_move(list, list2);
 201                         filelist_free(list2);
 202                 }
 203
 204                 filelist_sort(list, compare_filelistentry_format);
 205         } else {
 206                 list = mpdclient_filelist_search(c, FALSE, table, local_pattern);
 207                 if (list == NULL)
 208                         list = filelist_new(NULL);
 209         }
 210
 211         return list;
 212 }
 213
 214 /*-----------------------------------------------------------------------
 215  * NOTE: This code exists to test a new search ui,
 216  *       Its ugly and MUST be redesigned before the next release!
 217  *-----------------------------------------------------------------------
 218  */
 219 static mpdclient_filelist_t *
 220 search_advanced_query(char *query, mpdclient_t *c)
 221 {
 222         int i,j;
 223         char **strv;
 224         int table[10];
 225         char *arg[10];
 226         mpdclient_filelist_t *fl = NULL;
 227
 228         advanced_search_mode = FALSE;
 229         if( g_strrstr(query, ":") == NULL )
 230                 return NULL;
 231
 232         strv = g_strsplit_set(query, ": ", 0);
 233
 234         i=0;
 235         while (strv[i]) {
 236                 i++;
 237         }
 238
 239         memset(table, 0, 10*sizeof(int));
 240         memset(arg, 0, 10*sizeof(char *));
 241
 242         i=0;
 243         j=0;
 244         while (strv[i] && strlen(strv[i]) > 0 && i < 9) {
 245                 int id = search_get_tag_id(strv[i]);
 246                 if (id == -1) {
 247                         if (table[j]) {
 248                                 char *tmp = arg[j];
 249                                 arg[j] = g_strdup_printf("%s %s", arg[j], strv[i]);
 250                                 g_free(tmp);
 251                         } else {
 252                                 screen_status_printf(_("Bad search tag %s"), strv[i]);
 253                         }
 254                         i++;
 255                 } else if (strv[i+1] == NULL || strlen(strv[i+1]) == 0) {
 256                         screen_status_printf(_("No argument for search tag %s"), strv[i]);
 257                         i++;
 258                         //        j--;
 259                         //table[j] = -1;
 260                 } else {
 261                         table[j] = id;
 262                         arg[j] = locale_to_utf8(strv[i+1]); // FREE ME
 263                         j++;
 264                         table[j] = -1;
 265                         arg[j] = NULL;
 266                         i = i + 2;
 267                         advanced_search_mode = TRUE;
 268                 }
 269         }
 270
 271         g_strfreev(strv);
 272
 273
 274         if (advanced_search_mode && j > 0) {
 275                 int iter;
 276                 mpd_InfoEntity *entity;
 277
 278                 /*-----------------------------------------------------------------------
 279                  * NOTE (again): This code exists to test a new search ui,
 280                  *               Its ugly and MUST be redesigned before the next release!
 281                  *             + the code below should live in mpdclient.c
 282                  *-----------------------------------------------------------------------
 283                  */
 284                 /** stupid - but this is just a test...... (fulhack)  */
 285                 mpd_startSearch(c->connection, FALSE);
 286
 287                 for(iter = 0; iter < 10; iter++) {
 288                         mpd_addConstraintSearch(c->connection, table[iter], arg[iter]);
 289                 }
 290
 291                 mpd_commitSearch(c->connection);
 292
 293                 fl = g_malloc0(sizeof(mpdclient_filelist_t));
 294
 295                 while ((entity=mpd_getNextInfoEntity(c->connection)))
 296                         filelist_append(fl, entity);
 297
 298                 if (mpdclient_finish_command(c) && fl)
 299                         filelist_free(fl);
 300         }
 301
 302         i=0;
 303         while( arg[i] )
 304                 g_free(arg[i++]);
 305
 306         return fl;
 307 }
 308
 309 static void
 310 search_new(screen_t *screen, mpdclient_t *c)
 311 {
 312         search_clear(screen, c, TRUE);
 313
 314         pattern = screen_readln(screen->status_window.w,
 315                                 _("Search: "),
 316                                 NULL,
 317                                 &search_history,
 318                                 NULL);
 319
 320         if (pattern && strcmp(pattern,"") == 0) {
 321                 g_free(pattern);
 322                 pattern=NULL;
 323         }
 324
 325         if (pattern == NULL) {
 326                 list_window_reset(browser.lw);
 327                 return;
 328         }
 329
 330         if (!MPD_VERSION_LT(c, 0, 12, 0))
 331                 browser.filelist = search_advanced_query(pattern, c);
 332
 333         if (!advanced_search_mode && browser.filelist == NULL)
 334                 browser.filelist = filelist_search(c, FALSE,
 335                                                   mode[options.search_mode].table,
 336                                                   pattern);
 337
 338         if (browser.filelist == NULL)
 339                 browser.filelist = filelist_new(NULL);
 340
 341         sync_highlights(c, browser.filelist);
 342         mpdclient_install_playlist_callback(c, playlist_changed_callback);
 343         list_window_check_selected(browser.lw, filelist_length(browser.filelist));
 344 }
 345
 346
 347
 348 static void
 349 init(WINDOW *w, int cols, int rows)
 350 {
 351         browser.lw = list_window_init(w, cols, rows);
 352 }
 353
 354 static void
 355 quit(void)
 356 {
 357         if (search_history)
 358                 string_list_free(search_history);
 359         if (browser.filelist)
 360                 filelist_free(browser.filelist);
 361         list_window_free(browser.lw);
 362
 363         if (pattern) {
 364                 g_free(pattern);
 365                 pattern = NULL;
 366         }
 367 }
 368
 369 static void
 370 open(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
 371 {
 372         //  if( pattern==NULL )
 373         //    search_new(screen, c);
 374         // else
 375         screen_status_printf(_("Press %s for a new search"),
 376                              get_key_names(CMD_SCREEN_SEARCH,0));
 377         search_check_mode();
 378 }
 379
 380 static void
 381 resize(int cols, int rows)
 382 {
 383         browser.lw->cols = cols;
 384         browser.lw->rows = rows;
 385 }
 386
 387 static void
 388 paint(mpd_unused mpdclient_t *c)
 389 {
 390         if (browser.filelist) {
 391                 browser.lw->flags = 0;
 392                 list_window_paint(browser.lw, browser_lw_callback, browser.filelist);
 393         } else {
 394                 browser.lw->flags = LW_HIDE_CURSOR;
 395                 list_window_paint(browser.lw, lw_search_help_callback, NULL);
 396         }
 397 }
 398
 399 static const char *
 400 get_title(char *str, size_t size)
 401 {
 402         if (advanced_search_mode && pattern)
 403                 g_snprintf(str, size, _("Search: %s"), pattern);
 404         else if (pattern)
 405                 g_snprintf(str, size,
 406                            _("Search: Results for %s [%s]"),
 407                            pattern,
 408                            _(mode[options.search_mode].label));
 409         else
 410                 g_snprintf(str, size, _("Search: Press %s for a new search [%s]"),
 411                            get_key_names(CMD_SCREEN_SEARCH,0),
 412                            _(mode[options.search_mode].label));
 413
 414         return str;
 415 }
 416
 417 static int
 418 search_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 419 {
 420         switch (cmd) {
 421         case CMD_SEARCH_MODE:
 422                 options.search_mode++;
 423                 if (mode[options.search_mode].label == NULL)
 424                         options.search_mode = 0;
 425                 screen_status_printf(_("Search mode: %s"),
 426                                      _(mode[options.search_mode].label));
 427                 /* continue and update... */
 428         case CMD_SCREEN_UPDATE:
 429                 if (pattern) {
 430                         search_clear(screen, c, FALSE);
 431                         browser.filelist = filelist_search(c,
 432                                                           FALSE,
 433                                                           mode[options.search_mode].table,
 434                                                           pattern);
 435                         sync_highlights(c, browser.filelist);
 436                 }
 437                 search_repaint();
 438                 return 1;
 439
 440         case CMD_SCREEN_SEARCH:
 441                 search_new(screen, c);
 442                 search_repaint();
 443                 return 1;
 444
 445         case CMD_CLEAR:
 446                 search_clear(screen, c, TRUE);
 447                 list_window_reset(browser.lw);
 448                 search_repaint();
 449                 return 1;
 450
 451         default:
 452                 break;
 453         }
 454
 455         if (browser.filelist != NULL &&
 456             browser_cmd(&browser, screen, c, cmd)) {
 457                 search_repaint();
 458                 return 1;
 459         }
 460
 461         return 0;
 462 }
 463
 464 const struct screen_functions screen_search = {
 465         .init = init,
 466         .exit = quit,
 467         .open = open,
 468         .resize = resize,
 469         .paint = paint,
 470         .cmd = search_cmd,
 471         .get_title = get_title,
 472 };