src/collect-io.cc

   1 /*
   2  * Copyright (C) 2004 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "main.h"
  23 #include "collect-io.h"
  24
  25 #include "collect.h"
  26 #include "filedata.h"
  27 #include "layout-util.h"
  28 #include "secure-save.h"
  29 #include "thumb.h"
  30 #include "ui-fileops.h"
  31
  32 #define GQ_COLLECTION_MARKER "#" GQ_APPNAME
  33
  34 #define GQ_COLLECTION_FAIL_MIN     300
  35 #define GQ_COLLECTION_FAIL_PERCENT 98
  36 #define GQ_COLLECTION_READ_BUFSIZE 4096
  37
  38 struct CollectManagerEntry;
  39
  40 static void collection_load_thumb_step(CollectionData *cd);
  41 static gboolean collection_save_private(CollectionData *cd, const gchar *path);
  42
  43 static CollectManagerEntry *collect_manager_get_entry(const gchar *path);
  44 static void collect_manager_entry_reset(CollectManagerEntry *entry);
  45 static gint collect_manager_process_action(CollectManagerEntry *entry, gchar **path_ptr);
  46
  47 namespace
  48 {
  49
  50 gboolean scan_geometry(gchar *buffer, GdkRectangle &window)
  51 {
  52         gint nx, ny, nw, nh;
  53
  54         if (sscanf(buffer, "%d %d %d %d", &nx, &ny, &nw, &nh) != 4) return FALSE;
  55
  56         window.x = nx;
  57         window.y = ny;
  58         window.width = nw;
  59         window.height = nh;
  60
  61         return TRUE;
  62 }
  63
  64 }
  65
  66 static gboolean collection_load_private(CollectionData *cd, const gchar *path, CollectionLoadFlags flags)
  67 {
  68         gchar s_buf[GQ_COLLECTION_READ_BUFSIZE];
  69         FILE *f;
  70         gchar *pathl;
  71         gboolean limit_failures = TRUE;
  72         gboolean success = TRUE;
  73         gboolean has_official_header = FALSE;
  74         gboolean has_geometry_header = FALSE;
  75         gboolean has_gqview_header   = FALSE;
  76         gboolean need_header     = TRUE;
  77         guint total = 0;
  78         guint fail = 0;
  79         gboolean changed = FALSE;
  80         CollectManagerEntry *entry = nullptr;
  81         guint flush = !!(flags & COLLECTION_LOAD_FLUSH);
  82         guint append = !!(flags & COLLECTION_LOAD_APPEND);
  83         guint only_geometry = !!(flags & COLLECTION_LOAD_GEOMETRY);
  84         gboolean reading_extended_filename = FALSE;
  85         gchar *buffer2;
  86
  87         if (!only_geometry)
  88                 {
  89                 collection_load_stop(cd);
  90
  91                 if (flush)
  92                         collect_manager_flush();
  93                 else
  94                         entry = collect_manager_get_entry(path);
  95
  96                 if (!append)
  97                         {
  98                         g_list_free_full(cd->list, reinterpret_cast<GDestroyNotify>(collection_info_free));
  99                         cd->list = nullptr;
 100                         }
 101                 }
 102
 103         if (!path && !cd->path) return FALSE;
 104
 105         if (!path) path = cd->path;
 106
 107         pathl = path_from_utf8(path);
 108
 109         DEBUG_1("collection load: append=%d flush=%d only_geometry=%d path=%s",
 110                           append, flush, only_geometry, pathl);
 111
 112         /* load it */
 113         f = fopen(pathl, "r");
 114         g_free(pathl);
 115         if (!f)
 116                 {
 117                 log_printf("Failed to open collection file: \"%s\"\n", path);
 118                 return FALSE;
 119                 }
 120
 121         GString *extended_filename_buffer = g_string_new(nullptr);
 122         while (fgets(s_buf, sizeof(s_buf), f))
 123                 {
 124                 gchar *buf;
 125                 gchar *p = s_buf;
 126
 127                 if (!reading_extended_filename)
 128                         {
 129                         /* Skip whitespaces and empty lines */
 130                         while (*p && g_ascii_isspace(*p)) p++;
 131                         if (*p == '\n' || *p == '\r') continue;
 132
 133                         /* Parse comments */
 134                         if (*p == '#')
 135                                 {
 136                                 if (!need_header) continue;
 137                                 if (g_ascii_strncasecmp(p, GQ_COLLECTION_MARKER, strlen(GQ_COLLECTION_MARKER)) == 0)
 138                                         {
 139                                         /* Looks like an official collection, allow unchecked input.
 140                                          * All this does is allow adding files that may not exist,
 141                                          * which is needed for the collection manager to work.
 142                                          * Also unofficial files abort after too many invalid entries.
 143                                          */
 144                                         has_official_header = TRUE;
 145                                         limit_failures = FALSE;
 146                                         }
 147                                 else if (strncmp(p, "#geometry:", 10 ) == 0 &&
 148                                          scan_geometry(p + 10, cd->window))
 149                                         {
 150                                         has_geometry_header = TRUE;
 151                                         cd->window_read = TRUE;
 152                                         if (only_geometry) break;
 153                                         }
 154                                 else if (g_ascii_strncasecmp(p, "#GQview collection", strlen("#GQview collection")) == 0)
 155                                         {
 156                                         /* As 2008/04/15 there is no difference between our collection file format
 157                                          * and GQview 2.1.5 collection file format so ignore failures as well. */
 158                                         has_gqview_header = TRUE;
 159                                         limit_failures = FALSE;
 160                                         }
 161                                 need_header = (!has_official_header && !has_gqview_header) || !has_geometry_header;
 162                                 continue;
 163                                 }
 164
 165                         if (only_geometry) continue;
 166                         }
 167
 168                 /* Read filenames */
 169                 /** @todo This is not safe! */
 170                 /* Updated: anything within double quotes is considered a filename */
 171                 if (!reading_extended_filename)
 172                         {
 173                         /* not yet reading filename */
 174                         while (*p && *p != '"') p++;
 175                         if (*p) p++;
 176                         /* start of filename read */
 177                         buf = p;
 178                         while (*p && *p != '"') p++;
 179                         if (p[0] != '"')
 180                                 {
 181                                 /* first part of extended filename */
 182                                 g_string_append(extended_filename_buffer, buf);
 183                                 reading_extended_filename = TRUE;
 184                                 continue;
 185                                 }
 186                         }
 187                 else
 188                         {
 189                         buf = p;
 190                         while (*p && *p != '"') p++;
 191                         if (p[0] != '"')
 192                                 {
 193                                 /* end of extended filename still not found */
 194                                 g_string_append(extended_filename_buffer, buf);
 195                                 continue;
 196                                 }
 197                         else
 198                                 {
 199                                 /* end of extended filename found */
 200                                 g_string_append_len(extended_filename_buffer, buf, p - buf);
 201                                 reading_extended_filename = FALSE;
 202                                 }
 203                         }
 204
 205                 if (extended_filename_buffer->len > 0)
 206                         {
 207                         buffer2 = g_strdup(extended_filename_buffer->str);
 208                         g_string_erase(extended_filename_buffer, 0, -1);
 209                         }
 210                 else
 211                         {
 212                         *p = 0;
 213                         buffer2 = g_strdup(buf);
 214                         }
 215
 216                 if (*buffer2)
 217                         {
 218                         gboolean valid;
 219
 220                         if (!flush)
 221                                 changed |= collect_manager_process_action(entry, &buffer2);
 222
 223                         valid = (buffer2[0] == G_DIR_SEPARATOR && collection_add_check(cd, file_data_new_simple(buffer2), FALSE, TRUE));
 224                         if (!valid) DEBUG_1("collection invalid file: %s", buffer2);
 225
 226                         total++;
 227                         if (!valid)
 228                                 {
 229                                 fail++;
 230                                 if (limit_failures &&
 231                                     fail > GQ_COLLECTION_FAIL_MIN &&
 232                                     fail * 100 / total > GQ_COLLECTION_FAIL_PERCENT)
 233                                         {
 234                                         log_printf("%d invalid filenames in unofficial collection file, closing: %s\n", fail, path);
 235                                         success = FALSE;
 236                                         break;
 237                                         }
 238                                 }
 239                         }
 240                 g_free(buffer2);
 241                 }
 242
 243         g_string_free(extended_filename_buffer, TRUE);
 244
 245         DEBUG_1("collection files: total = %d fail = %d official=%d gqview=%d geometry=%d",
 246                           total, fail, has_official_header, has_gqview_header, has_geometry_header);
 247
 248         fclose(f);
 249         if (only_geometry) return has_geometry_header;
 250
 251         if (!flush)
 252                 {
 253                 gchar *buf = nullptr;
 254                 while (collect_manager_process_action(entry, &buf))
 255                         {
 256                         collection_add_check(cd, file_data_new_group(buf), FALSE, TRUE);
 257                         changed = TRUE;
 258                         g_free(buf);
 259                         buf = nullptr;
 260                         }
 261                 }
 262
 263         cd->list = collection_list_sort(cd->list, cd->sort_method);
 264
 265         if (!flush && changed && success)
 266                 collection_save_private(cd, path);
 267
 268         if (!flush)
 269                 collect_manager_entry_reset(entry);
 270
 271         if (!append) cd->changed = FALSE;
 272
 273         return success;
 274 }
 275
 276 gboolean collection_load(CollectionData *cd, const gchar *path, CollectionLoadFlags flags)
 277 {
 278         if (collection_load_private(cd, path, static_cast<CollectionLoadFlags>(flags | COLLECTION_LOAD_FLUSH)))
 279                 {
 280                 layout_recent_add_path(cd->path);
 281                 return TRUE;
 282                 }
 283
 284         return FALSE;
 285 }
 286
 287 static void collection_load_thumb_do(CollectionData *cd)
 288 {
 289         GdkPixbuf *pixbuf;
 290
 291         if (!cd->thumb_loader || !g_list_find(cd->list, cd->thumb_info)) return;
 292
 293         pixbuf = thumb_loader_get_pixbuf(cd->thumb_loader);
 294         collection_info_set_thumb(cd->thumb_info, pixbuf);
 295         g_object_unref(pixbuf);
 296
 297         if (cd->info_updated_func) cd->info_updated_func(cd, cd->thumb_info, cd->info_updated_data);
 298 }
 299
 300 static void collection_load_thumb_error_cb(ThumbLoader *, gpointer data)
 301 {
 302         auto cd = static_cast<CollectionData *>(data);
 303
 304         collection_load_thumb_do(cd);
 305         collection_load_thumb_step(cd);
 306 }
 307
 308 static void collection_load_thumb_done_cb(ThumbLoader *, gpointer data)
 309 {
 310         auto cd = static_cast<CollectionData *>(data);
 311
 312         collection_load_thumb_do(cd);
 313         collection_load_thumb_step(cd);
 314 }
 315
 316 static void collection_load_thumb_step(CollectionData *cd)
 317 {
 318         GList *work;
 319         CollectInfo *ci;
 320
 321         if (!cd->list)
 322                 {
 323                 collection_load_stop(cd);
 324                 return;
 325                 }
 326
 327         work = cd->list;
 328         ci = static_cast<CollectInfo *>(work->data);
 329         work = work->next;
 330         /* find first unloaded thumb */
 331         while (work && ci->pixbuf)
 332                 {
 333                 ci = static_cast<CollectInfo *>(work->data);
 334                 work = work->next;
 335                 }
 336
 337         if (!ci || ci->pixbuf)
 338                 {
 339                 /* done */
 340                 collection_load_stop(cd);
 341
 342                 /* send a NULL CollectInfo to notify end */
 343                 if (cd->info_updated_func) cd->info_updated_func(cd, nullptr, cd->info_updated_data);
 344
 345                 return;
 346                 }
 347
 348         /* setup loader and call it */
 349         cd->thumb_info = ci;
 350         thumb_loader_free(cd->thumb_loader);
 351         cd->thumb_loader = thumb_loader_new(options->thumbnails.max_width, options->thumbnails.max_height);
 352         thumb_loader_set_callbacks(cd->thumb_loader,
 353                                    collection_load_thumb_done_cb,
 354                                    collection_load_thumb_error_cb,
 355                                    nullptr,
 356                                    cd);
 357
 358         /* start it */
 359         if (!thumb_loader_start(cd->thumb_loader, ci->fd))
 360                 {
 361                 /* error, handle it, do next */
 362                 DEBUG_1("error loading thumb for %s", ci->fd->path);
 363                 collection_load_thumb_do(cd);
 364                 collection_load_thumb_step(cd);
 365                 }
 366 }
 367
 368 void collection_load_thumb_idle(CollectionData *cd)
 369 {
 370         if (!cd->thumb_loader) collection_load_thumb_step(cd);
 371 }
 372
 373 gboolean collection_load_begin(CollectionData *cd, const gchar *path, CollectionLoadFlags flags)
 374 {
 375         if (!collection_load(cd, path, flags)) return FALSE;
 376
 377         collection_load_thumb_idle(cd);
 378
 379         return TRUE;
 380 }
 381
 382 void collection_load_stop(CollectionData *cd)
 383 {
 384         if (!cd->thumb_loader) return;
 385
 386         thumb_loader_free(cd->thumb_loader);
 387         cd->thumb_loader = nullptr;
 388 }
 389
 390 static gboolean collection_save_private(CollectionData *cd, const gchar *path)
 391 {
 392         SecureSaveInfo *ssi;
 393         GList *work;
 394         gchar *pathl;
 395
 396         if (!path && !cd->path) return FALSE;
 397
 398         if (!path)
 399                 {
 400                 path = cd->path;
 401                 }
 402
 403
 404         pathl = path_from_utf8(path);
 405         ssi = secure_open(pathl);
 406         g_free(pathl);
 407         if (!ssi)
 408                 {
 409                 log_printf(_("failed to open collection (write) \"%s\"\n"), path);
 410                 return FALSE;
 411                 }
 412
 413         secure_fprintf(ssi, "%s collection\n", GQ_COLLECTION_MARKER);
 414         secure_fprintf(ssi, "#created with %s version %s\n", GQ_APPNAME, VERSION);
 415
 416         collection_update_geometry(cd);
 417         if (cd->window_read)
 418                 {
 419                 secure_fprintf(ssi, "#geometry: %d %d %d %d\n", cd->window.x, cd->window.y, cd->window.width, cd->window.height);
 420                 }
 421
 422         work = cd->list;
 423         while (work && secsave_errno == SS_ERR_NONE)
 424                 {
 425                 auto ci = static_cast<CollectInfo *>(work->data);
 426                 secure_fprintf(ssi, "\"%s\"\n", ci->fd->path);
 427                 work = work->next;
 428                 }
 429
 430         secure_fprintf(ssi, "#end\n");
 431
 432         if (secure_close(ssi))
 433                 {
 434                 log_printf(_("error saving collection file: %s\nerror: %s\n"), path,
 435                             secsave_strerror(secsave_errno));
 436                 return FALSE;
 437                 }
 438
 439         if (!cd->path || strcmp(path, cd->path) != 0)
 440                 {
 441                 gchar *buf = cd->path;
 442                 cd->path = g_strdup(path);
 443                 path = cd->path;
 444                 g_free(buf);
 445
 446                 g_free(cd->name);
 447                 cd->name = g_strdup(filename_from_path(cd->path));
 448
 449                 collection_path_changed(cd);
 450                 }
 451
 452         cd->changed = FALSE;
 453
 454         return TRUE;
 455 }
 456
 457 gboolean collection_save(CollectionData *cd, const gchar *path)
 458 {
 459         if (collection_save_private(cd, path))
 460                 {
 461                 layout_recent_add_path(cd->path);
 462                 return TRUE;
 463                 }
 464
 465         return FALSE;
 466 }
 467
 468 gboolean collection_load_only_geometry(CollectionData *cd, const gchar *path)
 469 {
 470         return collection_load(cd, path, COLLECTION_LOAD_GEOMETRY);
 471 }
 472
 473
 474 /*
 475  *-------------------------------------------------------------------
 476  * collection manager
 477  *-------------------------------------------------------------------
 478  */
 479
 480 #define COLLECT_MANAGER_ACTIONS_PER_IDLE 1000
 481 #define COLLECT_MANAGER_FLUSH_DELAY      10000
 482
 483 struct CollectManagerEntry
 484 {
 485         gchar *path;
 486         GList *add_list;
 487         GHashTable *oldpath_hash;
 488         GHashTable *newpath_hash;
 489         gboolean empty;
 490 };
 491
 492 enum CollectManagerType {
 493         COLLECTION_MANAGER_UPDATE,
 494         COLLECTION_MANAGER_ADD,
 495         COLLECTION_MANAGER_REMOVE
 496 };
 497
 498 struct CollectManagerAction
 499 {
 500         gchar *oldpath;
 501         gchar *newpath;
 502
 503         CollectManagerType type;
 504
 505         gint ref;
 506 };
 507
 508
 509 static GList *collection_manager_entry_list = nullptr;
 510 static GList *collection_manager_action_list = nullptr;
 511 static GList *collection_manager_action_tail = nullptr;
 512 static guint collection_manager_timer_id = 0; /* event source id */
 513
 514
 515 static CollectManagerAction *collect_manager_action_new(const gchar *oldpath, const gchar *newpath,
 516                                                         CollectManagerType type)
 517 {
 518         CollectManagerAction *action;
 519
 520         action = g_new0(CollectManagerAction, 1);
 521         action->ref = 1;
 522
 523         action->oldpath = g_strdup(oldpath);
 524         action->newpath = g_strdup(newpath);
 525
 526         action->type = type;
 527
 528         return action;
 529 }
 530
 531 static void collect_manager_action_ref(CollectManagerAction *action)
 532 {
 533         action->ref++;
 534 }
 535
 536 static void collect_manager_action_unref(CollectManagerAction *action)
 537 {
 538         action->ref--;
 539
 540         if (action->ref > 0) return;
 541
 542         g_free(action->oldpath);
 543         g_free(action->newpath);
 544         g_free(action);
 545 }
 546
 547 static void collect_manager_entry_free_data(CollectManagerEntry *entry)
 548 {
 549         g_list_free_full(entry->add_list, reinterpret_cast<GDestroyNotify>(collect_manager_action_unref));
 550         if (g_hash_table_size(entry->oldpath_hash) > 0)
 551                 g_hash_table_destroy(entry->oldpath_hash);
 552         else
 553                 g_hash_table_unref(entry->oldpath_hash);
 554         if (g_hash_table_size(entry->newpath_hash) > 0)
 555                 g_hash_table_destroy(entry->newpath_hash);
 556         else
 557                 g_hash_table_unref(entry->newpath_hash);
 558 }
 559
 560 static void collect_manager_entry_init_data(CollectManagerEntry *entry)
 561 {
 562         entry->add_list = nullptr;
 563         entry->oldpath_hash = g_hash_table_new_full(g_str_hash, g_str_equal, nullptr, reinterpret_cast<GDestroyNotify>(collect_manager_action_unref));
 564         entry->newpath_hash = g_hash_table_new(g_str_hash, g_str_equal);
 565         entry->empty = TRUE;
 566
 567 }
 568
 569 static CollectManagerEntry *collect_manager_entry_new(const gchar *path)
 570 {
 571         CollectManagerEntry *entry;
 572
 573         entry = g_new0(CollectManagerEntry, 1);
 574         entry->path = g_strdup(path);
 575         collect_manager_entry_init_data(entry);
 576
 577         collection_manager_entry_list = g_list_append(collection_manager_entry_list, entry);
 578
 579         return entry;
 580 }
 581
 582
 583 static void collect_manager_entry_free(CollectManagerEntry *entry)
 584 {
 585         collection_manager_entry_list = g_list_remove(collection_manager_entry_list, entry);
 586
 587         collect_manager_entry_free_data(entry);
 588
 589         g_free(entry->path);
 590         g_free(entry);
 591 }
 592
 593 static void collect_manager_entry_reset(CollectManagerEntry *entry)
 594 {
 595         collect_manager_entry_free_data(entry);
 596         collect_manager_entry_init_data(entry);
 597 }
 598
 599 static CollectManagerEntry *collect_manager_get_entry(const gchar *path)
 600 {
 601         GList *work;
 602
 603         work = collection_manager_entry_list;
 604         while (work)
 605                 {
 606                 CollectManagerEntry *entry;
 607
 608                 entry = static_cast<CollectManagerEntry *>(work->data);
 609                 work = work->next;
 610                 if (strcmp(entry->path, path) == 0)
 611                         {
 612                         return entry;
 613                         }
 614                 }
 615         return nullptr;
 616
 617 }
 618
 619 static void collect_manager_entry_add_action(CollectManagerEntry *entry, CollectManagerAction *action)
 620 {
 621
 622         CollectManagerAction *orig_action;
 623
 624         entry->empty = FALSE;
 625
 626         if (action->oldpath == nullptr)
 627                 {
 628                 /* add file */
 629                 if (action->newpath == nullptr)
 630                         {
 631                         return;
 632                         }
 633
 634                 orig_action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->newpath_hash, action->newpath));
 635                 if (orig_action)
 636                         {
 637                         /* target already exists */
 638                         log_printf("collection manager failed to add another action for target %s in collection %s\n",
 639                                 action->newpath, entry->path);
 640                         return;
 641                         }
 642                 entry->add_list = g_list_append(entry->add_list, action);
 643                 g_hash_table_insert(entry->newpath_hash, action->newpath, action);
 644                 collect_manager_action_ref(action);
 645                 return;
 646                 }
 647
 648         orig_action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->newpath_hash, action->oldpath));
 649         if (orig_action)
 650                 {
 651                 /* new action with the same file */
 652                 CollectManagerAction *new_action = collect_manager_action_new(orig_action->oldpath, action->newpath, action->type);
 653
 654                 if (new_action->oldpath)
 655                         {
 656                         g_hash_table_steal(entry->oldpath_hash, orig_action->oldpath);
 657                         g_hash_table_insert(entry->oldpath_hash, new_action->oldpath, new_action);
 658                         }
 659                 else
 660                         {
 661                         GList *work = g_list_find(entry->add_list, orig_action);
 662                         work->data = new_action;
 663                         }
 664
 665                 g_hash_table_steal(entry->newpath_hash, orig_action->newpath);
 666                 if (new_action->newpath)
 667                         {
 668                         g_hash_table_insert(entry->newpath_hash, new_action->newpath, new_action);
 669                         }
 670                 collect_manager_action_unref(orig_action);
 671                 return;
 672                 }
 673
 674
 675         orig_action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->oldpath_hash, action->oldpath));
 676         if (orig_action)
 677                 {
 678                 /* another action for the same source, ignore */
 679                 log_printf("collection manager failed to add another action for source %s in collection %s\n",
 680                         action->oldpath, entry->path);
 681                 return;
 682                 }
 683
 684         g_hash_table_insert(entry->oldpath_hash, action->oldpath, action);
 685         if (action->newpath)
 686                 {
 687                 g_hash_table_insert(entry->newpath_hash, action->newpath, action);
 688                 }
 689         collect_manager_action_ref(action);
 690 }
 691
 692 static gboolean collect_manager_process_action(CollectManagerEntry *entry, gchar **path_ptr)
 693 {
 694         gchar *path = *path_ptr;
 695         CollectManagerAction *action;
 696
 697         if (path == nullptr)
 698                 {
 699                 /* get new files */
 700                 if (entry->add_list)
 701                         {
 702                         action = static_cast<CollectManagerAction *>(entry->add_list->data);
 703                         g_assert(action->oldpath == nullptr);
 704                         entry->add_list = g_list_remove(entry->add_list, action);
 705                         path = g_strdup(action->newpath);
 706                         g_hash_table_remove(entry->newpath_hash, path);
 707                         collect_manager_action_unref(action);
 708                         }
 709                 *path_ptr = path;
 710                 return (path != nullptr);
 711                 }
 712
 713         action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->oldpath_hash, path));
 714
 715         if (action)
 716                 {
 717                 strcpy(*path_ptr, action->newpath);
 718                 return TRUE;
 719                 }
 720
 721         return FALSE; /* no change */
 722 }
 723
 724 static void collect_manager_refresh()
 725 {
 726         GList *list;
 727         GList *work;
 728         FileData *dir_fd;
 729
 730         dir_fd = file_data_new_dir(get_collections_dir());
 731         filelist_read(dir_fd, &list, nullptr);
 732         file_data_unref(dir_fd);
 733
 734         work = collection_manager_entry_list;
 735         while (work && list)
 736                 {
 737                 CollectManagerEntry *entry;
 738                 GList *list_step;
 739
 740                 entry = static_cast<CollectManagerEntry *>(work->data);
 741                 work = work->next;
 742
 743                 list_step = list;
 744                 while (list_step && entry)
 745                         {
 746                         FileData *fd;
 747
 748                         fd = static_cast<FileData *>(list_step->data);
 749                         list_step = list_step->next;
 750
 751                         if (strcmp(fd->path, entry->path) == 0)
 752                                 {
 753                                 list = g_list_remove(list, fd);
 754                                 file_data_unref(fd);
 755
 756                                 entry = nullptr;
 757                                 }
 758                         else
 759                                 {
 760                                 collect_manager_entry_free(entry);
 761
 762                                 entry = nullptr;
 763                                 }
 764                         }
 765                 }
 766
 767         work = list;
 768         while (work)
 769                 {
 770                 FileData *fd;
 771
 772                 fd = static_cast<FileData *>(work->data);
 773                 work = work->next;
 774
 775                 collect_manager_entry_new(fd->path);
 776                 }
 777
 778         filelist_free(list);
 779 }
 780
 781 static void collect_manager_process_actions(gint max)
 782 {
 783         if (collection_manager_action_list) DEBUG_1("collection manager processing actions");
 784
 785         while (collection_manager_action_list != nullptr && max > 0)
 786                 {
 787                 CollectManagerAction *action;
 788                 GList *work;
 789
 790                 action = static_cast<CollectManagerAction *>(collection_manager_action_list->data);
 791                 work = collection_manager_entry_list;
 792                 while (work)
 793                         {
 794                         CollectManagerEntry *entry;
 795
 796                         entry = static_cast<CollectManagerEntry *>(work->data);
 797                         work = work->next;
 798
 799                         if (action->type == COLLECTION_MANAGER_UPDATE)
 800                                 {
 801                                 collect_manager_entry_add_action(entry, action);
 802                                 }
 803                         else if (action->oldpath && action->newpath &&
 804                                  strcmp(action->newpath, entry->path) == 0)
 805                                 {
 806                                 /* convert action to standard add format */
 807                                 g_free(action->newpath);
 808                                 if (action->type == COLLECTION_MANAGER_ADD)
 809                                         {
 810                                         action->newpath = action->oldpath;
 811                                         action->oldpath = nullptr;
 812                                         }
 813                                 else if (action->type == COLLECTION_MANAGER_REMOVE)
 814                                         {
 815                                         action->newpath = nullptr;
 816                                         }
 817                                 collect_manager_entry_add_action(entry, action);
 818                                 }
 819
 820                         max--;
 821                         }
 822
 823                 if (action->type != COLLECTION_MANAGER_UPDATE &&
 824                     action->oldpath && action->newpath)
 825                         {
 826                         log_printf("collection manager failed to %s %s for collection %s\n",
 827                                 (action->type == COLLECTION_MANAGER_ADD) ? "add" : "remove",
 828                                 action->oldpath, action->newpath);
 829                         }
 830
 831                 if (collection_manager_action_tail == collection_manager_action_list)
 832                         {
 833                         collection_manager_action_tail = nullptr;
 834                         }
 835                 collection_manager_action_list = g_list_remove(collection_manager_action_list, action);
 836                 collect_manager_action_unref(action);
 837                 }
 838 }
 839
 840 static gboolean collect_manager_process_entry(CollectManagerEntry *entry)
 841 {
 842         CollectionData *cd;
 843
 844         if (entry->empty) return FALSE;
 845
 846         cd = collection_new(entry->path);
 847         (void) collection_load_private(cd, entry->path, COLLECTION_LOAD_NONE);
 848
 849         collection_unref(cd);
 850
 851         return TRUE;
 852 }
 853
 854 static gboolean collect_manager_process_entry_list()
 855 {
 856         GList *work;
 857
 858         work = collection_manager_entry_list;
 859         while (work)
 860                 {
 861                 CollectManagerEntry *entry;
 862
 863                 entry = static_cast<CollectManagerEntry *>(work->data);
 864                 work = work->next;
 865                 if (collect_manager_process_entry(entry)) return TRUE;
 866                 }
 867
 868         return FALSE;
 869 }
 870
 871
 872
 873 static gboolean collect_manager_process_cb(gpointer)
 874 {
 875         if (collection_manager_action_list) collect_manager_refresh();
 876         collect_manager_process_actions(COLLECT_MANAGER_ACTIONS_PER_IDLE);
 877         if (collection_manager_action_list) return G_SOURCE_CONTINUE;
 878
 879         if (collect_manager_process_entry_list()) return G_SOURCE_CONTINUE;
 880
 881         DEBUG_1("collection manager is up to date");
 882         return G_SOURCE_REMOVE;
 883 }
 884
 885 static gboolean collect_manager_timer_cb(gpointer)
 886 {
 887         DEBUG_1("collection manager timer expired");
 888
 889         g_idle_add_full(G_PRIORITY_LOW, collect_manager_process_cb, nullptr, nullptr);
 890
 891         collection_manager_timer_id = 0;
 892         return FALSE;
 893 }
 894
 895 static void collect_manager_timer_push(gint stop)
 896 {
 897         if (collection_manager_timer_id)
 898                 {
 899                 if (!stop) return;
 900
 901                 g_source_remove(collection_manager_timer_id);
 902                 collection_manager_timer_id = 0;
 903                 }
 904
 905         if (!stop)
 906                 {
 907                 collection_manager_timer_id = g_timeout_add(COLLECT_MANAGER_FLUSH_DELAY,
 908                                                             collect_manager_timer_cb, nullptr);
 909                 DEBUG_1("collection manager timer started");
 910                 }
 911 }
 912
 913 static void collect_manager_add_action(CollectManagerAction *action)
 914 {
 915         if (!action) return;
 916
 917         /* we keep track of the list's tail to keep this a n(1) operation */
 918
 919         if (collection_manager_action_tail)
 920                 {
 921                 collection_manager_action_tail = g_list_append(collection_manager_action_tail, action);
 922                 collection_manager_action_tail = collection_manager_action_tail->next;
 923                 }
 924         else
 925                 {
 926                 collection_manager_action_list = g_list_append(collection_manager_action_list, action);
 927                 collection_manager_action_tail = collection_manager_action_list;
 928                 }
 929
 930         collect_manager_timer_push(FALSE);
 931 }
 932
 933 void collect_manager_moved(FileData *fd)
 934 {
 935         CollectManagerAction *action;
 936         const gchar *oldpath = fd->change->source;
 937         const gchar *newpath = fd->change->dest;
 938
 939         action = collect_manager_action_new(oldpath, newpath, COLLECTION_MANAGER_UPDATE);
 940         collect_manager_add_action(action);
 941 }
 942
 943 void collect_manager_add(FileData *fd, const gchar *collection)
 944 {
 945         CollectManagerAction *action;
 946         CollectWindow *cw;
 947
 948         if (!fd || !collection) return;
 949
 950         cw = collection_window_find_by_path(collection);
 951         if (cw)
 952                 {
 953                 if (collection_list_find_fd(cw->cd->list, fd) == nullptr)
 954                         {
 955                         collection_add(cw->cd, fd, FALSE);
 956                         }
 957                 return;
 958                 }
 959
 960         action = collect_manager_action_new(fd->path, collection, COLLECTION_MANAGER_ADD);
 961         collect_manager_add_action(action);
 962 }
 963
 964 void collect_manager_remove(FileData *fd, const gchar *collection)
 965 {
 966         CollectManagerAction *action;
 967         CollectWindow *cw;
 968
 969         if (!fd || !collection) return;
 970
 971         cw = collection_window_find_by_path(collection);
 972         if (cw)
 973                 {
 974                 while (collection_remove(cw->cd, fd));
 975                 return;
 976                 }
 977
 978         action = collect_manager_action_new(fd->path, collection, COLLECTION_MANAGER_REMOVE);
 979         collect_manager_add_action(action);
 980 }
 981
 982 void collect_manager_flush()
 983 {
 984         collect_manager_timer_push(TRUE);
 985
 986         DEBUG_1("collection manager flushing");
 987         while (collect_manager_process_cb(nullptr));
 988 }
 989
 990 void collect_manager_notify_cb(FileData *fd, NotifyType type, gpointer)
 991 {
 992         if (!(type & NOTIFY_CHANGE) || !fd->change) return;
 993
 994         DEBUG_1("Notify collect_manager: %s %04x", fd->path, type);
 995         switch (fd->change->type)
 996                 {
 997                 case FILEDATA_CHANGE_MOVE:
 998                         collect_manager_moved(fd);
 999                         break;
1000                 case FILEDATA_CHANGE_COPY:
1001                         break;
1002                 case FILEDATA_CHANGE_RENAME:
1003                         collect_manager_moved(fd);
1004                         break;
1005                 case FILEDATA_CHANGE_DELETE:
1006                 case FILEDATA_CHANGE_UNSPECIFIED:
1007                 case FILEDATA_CHANGE_WRITE_METADATA:
1008                         break;
1009                 }
1010 }
1011
1012 static gint collection_manager_sort_cb(gconstpointer a, gconstpointer b)
1013 {
1014         auto char_a = static_cast<const gchar *>(a);
1015         auto char_b = static_cast<const gchar *>(b);
1016
1017         return g_strcmp0(char_a, char_b);
1018 }
1019
1020 /**
1021  * @brief Creates sorted list of collections
1022  * @param[out] names_exc sorted list of collections names excluding extension
1023  * @param[out] names_inc sorted list of collections names including extension
1024  * @param[out] paths sorted list of collection paths
1025  *
1026  * Lists of type gchar.
1027  * Used lists must be freed with string_list_free()
1028  */
1029 void collect_manager_list(GList **names_exc, GList **names_inc, GList **paths)
1030 {
1031         FileData *dir_fd;
1032         GList *list = nullptr;
1033         gchar *name;
1034         FileData *fd;
1035         gchar *filename;
1036
1037         if (names_exc == nullptr && names_inc == nullptr && paths == nullptr)
1038                 {
1039                 return;
1040                 }
1041
1042         dir_fd = file_data_new_dir((get_collections_dir()));
1043
1044         filelist_read(dir_fd, &list, nullptr);
1045
1046         while (list)
1047                 {
1048                 fd = static_cast<FileData *>(list->data);
1049                 filename = g_strdup(filename_from_path(fd->path));
1050
1051                 if (file_extension_match(filename, GQ_COLLECTION_EXT))
1052                         {
1053                         name = remove_extension_from_path(filename);
1054
1055                         if (names_exc != nullptr)
1056                                 {
1057                                 *names_exc = g_list_insert_sorted(*names_exc, g_strdup(name),
1058                                                                                         collection_manager_sort_cb);
1059                                 *names_exc = g_list_first(*names_exc);
1060                                 }
1061                         if (names_inc != nullptr)
1062                                 {
1063                                 *names_inc = g_list_insert_sorted(*names_inc,filename,
1064                                                                                         collection_manager_sort_cb);
1065                                 *names_inc = g_list_first(*names_inc);
1066                                 }
1067                         if (paths != nullptr)
1068                                 {
1069                                 *paths = g_list_insert_sorted(*paths, g_strdup(fd->path),
1070                                                                                         collection_manager_sort_cb);
1071                                 *paths = g_list_first(*paths);
1072                                 }
1073                         g_free(name);
1074                         }
1075                 list = list->next;
1076                 g_free(filename);
1077                 }
1078
1079         filelist_free(list);
1080 }
1081 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */