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 enum {
  35         GQ_COLLECTION_FAIL_MIN =     300,
  36         GQ_COLLECTION_FAIL_PERCENT = 98,
  37         GQ_COLLECTION_READ_BUFSIZE = 4096
  38 };
  39
  40 struct CollectManagerEntry;
  41
  42 static void collection_load_thumb_step(CollectionData *cd);
  43 static gboolean collection_save_private(CollectionData *cd, const gchar *path);
  44
  45 static CollectManagerEntry *collect_manager_get_entry(const gchar *path);
  46 static void collect_manager_entry_reset(CollectManagerEntry *entry);
  47 static gint collect_manager_process_action(CollectManagerEntry *entry, gchar **path_ptr);
  48
  49 namespace
  50 {
  51
  52 gboolean scan_geometry(gchar *buffer, GdkRectangle &window)
  53 {
  54         gint nx;
  55         gint ny;
  56         gint nw;
  57         gint nh;
  58
  59         if (sscanf(buffer, "%d %d %d %d", &nx, &ny, &nw, &nh) != 4) return FALSE;
  60
  61         window.x = nx;
  62         window.y = ny;
  63         window.width = nw;
  64         window.height = nh;
  65
  66         return TRUE;
  67 }
  68
  69 }
  70
  71 static gboolean collection_load_private(CollectionData *cd, const gchar *path, CollectionLoadFlags flags)
  72 {
  73         gchar s_buf[GQ_COLLECTION_READ_BUFSIZE];
  74         FILE *f;
  75         gchar *pathl;
  76         gboolean limit_failures = TRUE;
  77         gboolean success = TRUE;
  78         gboolean has_official_header = FALSE;
  79         gboolean has_geometry_header = FALSE;
  80         gboolean has_gqview_header   = FALSE;
  81         gboolean need_header     = TRUE;
  82         guint total = 0;
  83         guint fail = 0;
  84         gboolean changed = FALSE;
  85         CollectManagerEntry *entry = nullptr;
  86         guint flush = !!(flags & COLLECTION_LOAD_FLUSH);
  87         guint append = !!(flags & COLLECTION_LOAD_APPEND);
  88         guint only_geometry = !!(flags & COLLECTION_LOAD_GEOMETRY);
  89         gboolean reading_extended_filename = FALSE;
  90         gchar *buffer2;
  91
  92         if (!only_geometry)
  93                 {
  94                 collection_load_stop(cd);
  95
  96                 if (flush)
  97                         collect_manager_flush();
  98                 else
  99                         entry = collect_manager_get_entry(path);
 100
 101                 if (!append)
 102                         {
 103                         g_list_free_full(cd->list, reinterpret_cast<GDestroyNotify>(collection_info_free));
 104                         cd->list = nullptr;
 105                         }
 106                 }
 107
 108         if (!path && !cd->path) return FALSE;
 109
 110         if (!path) path = cd->path;
 111
 112         pathl = path_from_utf8(path);
 113
 114         DEBUG_1("collection load: append=%d flush=%d only_geometry=%d path=%s",
 115                           append, flush, only_geometry, pathl);
 116
 117         /* load it */
 118         f = fopen(pathl, "r");
 119         g_free(pathl);
 120         if (!f)
 121                 {
 122                 log_printf("Failed to open collection file: \"%s\"\n", path);
 123                 return FALSE;
 124                 }
 125
 126         GString *extended_filename_buffer = g_string_new(nullptr);
 127         while (fgets(s_buf, sizeof(s_buf), f))
 128                 {
 129                 gchar *buf;
 130                 gchar *p = s_buf;
 131
 132                 if (!reading_extended_filename)
 133                         {
 134                         /* Skip whitespaces and empty lines */
 135                         while (*p && g_ascii_isspace(*p)) p++;
 136                         if (*p == '\n' || *p == '\r') continue;
 137
 138                         /* Parse comments */
 139                         if (*p == '#')
 140                                 {
 141                                 if (!need_header) continue;
 142                                 if (g_ascii_strncasecmp(p, GQ_COLLECTION_MARKER, strlen(GQ_COLLECTION_MARKER)) == 0)
 143                                         {
 144                                         /* Looks like an official collection, allow unchecked input.
 145                                          * All this does is allow adding files that may not exist,
 146                                          * which is needed for the collection manager to work.
 147                                          * Also unofficial files abort after too many invalid entries.
 148                                          */
 149                                         has_official_header = TRUE;
 150                                         limit_failures = FALSE;
 151                                         }
 152                                 else if (strncmp(p, "#geometry:", 10 ) == 0 &&
 153                                          scan_geometry(p + 10, cd->window))
 154                                         {
 155                                         has_geometry_header = TRUE;
 156                                         cd->window_read = TRUE;
 157                                         if (only_geometry) break;
 158                                         }
 159                                 else if (g_ascii_strncasecmp(p, "#GQview collection", strlen("#GQview collection")) == 0)
 160                                         {
 161                                         /* As 2008/04/15 there is no difference between our collection file format
 162                                          * and GQview 2.1.5 collection file format so ignore failures as well. */
 163                                         has_gqview_header = TRUE;
 164                                         limit_failures = FALSE;
 165                                         }
 166                                 need_header = (!has_official_header && !has_gqview_header) || !has_geometry_header;
 167                                 continue;
 168                                 }
 169
 170                         if (only_geometry) continue;
 171                         }
 172
 173                 /* Read filenames */
 174                 /** @todo This is not safe! */
 175                 /* Updated: anything within double quotes is considered a filename */
 176                 if (!reading_extended_filename)
 177                         {
 178                         /* not yet reading filename */
 179                         while (*p && *p != '"') p++;
 180                         if (*p) p++;
 181                         /* start of filename read */
 182                         buf = p;
 183                         while (*p && *p != '"') p++;
 184                         if (p[0] != '"')
 185                                 {
 186                                 /* first part of extended filename */
 187                                 g_string_append(extended_filename_buffer, buf);
 188                                 reading_extended_filename = TRUE;
 189                                 continue;
 190                                 }
 191                         }
 192                 else
 193                         {
 194                         buf = p;
 195                         while (*p && *p != '"') p++;
 196                         if (p[0] != '"')
 197                                 {
 198                                 /* end of extended filename still not found */
 199                                 g_string_append(extended_filename_buffer, buf);
 200                                 continue;
 201                                 }
 202
 203                         /* end of extended filename found */
 204                         g_string_append_len(extended_filename_buffer, buf, p - buf);
 205                         reading_extended_filename = FALSE;
 206                         }
 207
 208                 if (extended_filename_buffer->len > 0)
 209                         {
 210                         buffer2 = g_strdup(extended_filename_buffer->str);
 211                         g_string_erase(extended_filename_buffer, 0, -1);
 212                         }
 213                 else
 214                         {
 215                         *p = 0;
 216                         buffer2 = g_strdup(buf);
 217                         }
 218
 219                 if (*buffer2)
 220                         {
 221                         gboolean valid;
 222
 223                         if (!flush)
 224                                 changed |= collect_manager_process_action(entry, &buffer2);
 225
 226                         valid = (buffer2[0] == G_DIR_SEPARATOR && collection_add_check(cd, file_data_new_simple(buffer2), FALSE, TRUE));
 227                         if (!valid) DEBUG_1("collection invalid file: %s", buffer2);
 228
 229                         total++;
 230                         if (!valid)
 231                                 {
 232                                 fail++;
 233                                 if (limit_failures &&
 234                                     fail > GQ_COLLECTION_FAIL_MIN &&
 235                                     fail * 100 / total > GQ_COLLECTION_FAIL_PERCENT)
 236                                         {
 237                                         log_printf("%d invalid filenames in unofficial collection file, closing: %s\n", fail, path);
 238                                         success = FALSE;
 239                                         break;
 240                                         }
 241                                 }
 242                         }
 243                 g_free(buffer2);
 244                 }
 245
 246         g_string_free(extended_filename_buffer, TRUE);
 247
 248         DEBUG_1("collection files: total = %d fail = %d official=%d gqview=%d geometry=%d",
 249                           total, fail, has_official_header, has_gqview_header, has_geometry_header);
 250
 251         fclose(f);
 252         if (only_geometry) return has_geometry_header;
 253
 254         if (!flush)
 255                 {
 256                 gchar *buf = nullptr;
 257                 while (collect_manager_process_action(entry, &buf))
 258                         {
 259                         collection_add_check(cd, file_data_new_group(buf), FALSE, TRUE);
 260                         changed = TRUE;
 261                         g_free(buf);
 262                         buf = nullptr;
 263                         }
 264                 }
 265
 266         cd->list = collection_list_sort(cd->list, cd->sort_method);
 267
 268         if (!flush && changed && success)
 269                 collection_save_private(cd, path);
 270
 271         if (!flush)
 272                 collect_manager_entry_reset(entry);
 273
 274         if (!append) cd->changed = FALSE;
 275
 276         return success;
 277 }
 278
 279 gboolean collection_load(CollectionData *cd, const gchar *path, CollectionLoadFlags flags)
 280 {
 281         if (collection_load_private(cd, path, static_cast<CollectionLoadFlags>(flags | COLLECTION_LOAD_FLUSH)))
 282                 {
 283                 layout_recent_add_path(cd->path);
 284                 return TRUE;
 285                 }
 286
 287         return FALSE;
 288 }
 289
 290 static void collection_load_thumb_do(CollectionData *cd)
 291 {
 292         GdkPixbuf *pixbuf;
 293
 294         if (!cd->thumb_loader || !g_list_find(cd->list, cd->thumb_info)) return;
 295
 296         pixbuf = thumb_loader_get_pixbuf(cd->thumb_loader);
 297         collection_info_set_thumb(cd->thumb_info, pixbuf);
 298         g_object_unref(pixbuf);
 299
 300         if (cd->info_updated_func) cd->info_updated_func(cd, cd->thumb_info, cd->info_updated_data);
 301 }
 302
 303 static void collection_load_thumb_error_cb(ThumbLoader *, gpointer data)
 304 {
 305         auto cd = static_cast<CollectionData *>(data);
 306
 307         collection_load_thumb_do(cd);
 308         collection_load_thumb_step(cd);
 309 }
 310
 311 static void collection_load_thumb_done_cb(ThumbLoader *, gpointer data)
 312 {
 313         auto cd = static_cast<CollectionData *>(data);
 314
 315         collection_load_thumb_do(cd);
 316         collection_load_thumb_step(cd);
 317 }
 318
 319 static void collection_load_thumb_step(CollectionData *cd)
 320 {
 321         GList *work;
 322         CollectInfo *ci;
 323
 324         if (!cd->list)
 325                 {
 326                 collection_load_stop(cd);
 327                 return;
 328                 }
 329
 330         work = cd->list;
 331         ci = static_cast<CollectInfo *>(work->data);
 332         work = work->next;
 333         /* find first unloaded thumb */
 334         while (work && ci->pixbuf)
 335                 {
 336                 ci = static_cast<CollectInfo *>(work->data);
 337                 work = work->next;
 338                 }
 339
 340         if (!ci || ci->pixbuf)
 341                 {
 342                 /* done */
 343                 collection_load_stop(cd);
 344
 345                 /* send a NULL CollectInfo to notify end */
 346                 if (cd->info_updated_func) cd->info_updated_func(cd, nullptr, cd->info_updated_data);
 347
 348                 return;
 349                 }
 350
 351         /* setup loader and call it */
 352         cd->thumb_info = ci;
 353         thumb_loader_free(cd->thumb_loader);
 354         cd->thumb_loader = thumb_loader_new(options->thumbnails.max_width, options->thumbnails.max_height);
 355         thumb_loader_set_callbacks(cd->thumb_loader,
 356                                    collection_load_thumb_done_cb,
 357                                    collection_load_thumb_error_cb,
 358                                    nullptr,
 359                                    cd);
 360
 361         /* start it */
 362         if (!thumb_loader_start(cd->thumb_loader, ci->fd))
 363                 {
 364                 /* error, handle it, do next */
 365                 DEBUG_1("error loading thumb for %s", ci->fd->path);
 366                 collection_load_thumb_do(cd);
 367                 collection_load_thumb_step(cd);
 368                 }
 369 }
 370
 371 void collection_load_thumb_idle(CollectionData *cd)
 372 {
 373         if (!cd->thumb_loader) collection_load_thumb_step(cd);
 374 }
 375
 376 gboolean collection_load_begin(CollectionData *cd, const gchar *path, CollectionLoadFlags flags)
 377 {
 378         if (!collection_load(cd, path, flags)) return FALSE;
 379
 380         collection_load_thumb_idle(cd);
 381
 382         return TRUE;
 383 }
 384
 385 void collection_load_stop(CollectionData *cd)
 386 {
 387         if (!cd->thumb_loader) return;
 388
 389         thumb_loader_free(cd->thumb_loader);
 390         cd->thumb_loader = nullptr;
 391 }
 392
 393 static gboolean collection_save_private(CollectionData *cd, const gchar *path)
 394 {
 395         SecureSaveInfo *ssi;
 396         GList *work;
 397         gchar *pathl;
 398
 399         if (!path && !cd->path) return FALSE;
 400
 401         if (!path)
 402                 {
 403                 path = cd->path;
 404                 }
 405
 406
 407         pathl = path_from_utf8(path);
 408         ssi = secure_open(pathl);
 409         g_free(pathl);
 410         if (!ssi)
 411                 {
 412                 log_printf(_("failed to open collection (write) \"%s\"\n"), path);
 413                 return FALSE;
 414                 }
 415
 416         secure_fprintf(ssi, "%s collection\n", GQ_COLLECTION_MARKER);
 417         secure_fprintf(ssi, "#created with %s version %s\n", GQ_APPNAME, VERSION);
 418
 419         collection_update_geometry(cd);
 420         if (cd->window_read)
 421                 {
 422                 secure_fprintf(ssi, "#geometry: %d %d %d %d\n", cd->window.x, cd->window.y, cd->window.width, cd->window.height);
 423                 }
 424
 425         work = cd->list;
 426         while (work && secsave_errno == SS_ERR_NONE)
 427                 {
 428                 auto ci = static_cast<CollectInfo *>(work->data);
 429                 secure_fprintf(ssi, "\"%s\"\n", ci->fd->path);
 430                 work = work->next;
 431                 }
 432
 433         secure_fprintf(ssi, "#end\n");
 434
 435         if (secure_close(ssi))
 436                 {
 437                 log_printf(_("error saving collection file: %s\nerror: %s\n"), path,
 438                             secsave_strerror(secsave_errno));
 439                 return FALSE;
 440                 }
 441
 442         if (!cd->path || strcmp(path, cd->path) != 0)
 443                 {
 444                 gchar *buf = cd->path;
 445                 cd->path = g_strdup(path);
 446                 path = cd->path;
 447                 g_free(buf);
 448
 449                 g_free(cd->name);
 450                 cd->name = g_strdup(filename_from_path(cd->path));
 451
 452                 collection_path_changed(cd);
 453                 }
 454
 455         cd->changed = FALSE;
 456
 457         return TRUE;
 458 }
 459
 460 gboolean collection_save(CollectionData *cd, const gchar *path)
 461 {
 462         if (collection_save_private(cd, path))
 463                 {
 464                 layout_recent_add_path(cd->path);
 465                 return TRUE;
 466                 }
 467
 468         return FALSE;
 469 }
 470
 471 gboolean collection_load_only_geometry(CollectionData *cd, const gchar *path)
 472 {
 473         return collection_load(cd, path, COLLECTION_LOAD_GEOMETRY);
 474 }
 475
 476
 477 /*
 478  *-------------------------------------------------------------------
 479  * collection manager
 480  *-------------------------------------------------------------------
 481  */
 482
 483 enum {
 484         COLLECT_MANAGER_ACTIONS_PER_IDLE = 1000,
 485         COLLECT_MANAGER_FLUSH_DELAY =      10000
 486 };
 487
 488 struct CollectManagerEntry
 489 {
 490         gchar *path;
 491         GList *add_list;
 492         GHashTable *oldpath_hash;
 493         GHashTable *newpath_hash;
 494         gboolean empty;
 495 };
 496
 497 enum CollectManagerType {
 498         COLLECTION_MANAGER_UPDATE,
 499         COLLECTION_MANAGER_ADD,
 500         COLLECTION_MANAGER_REMOVE
 501 };
 502
 503 struct CollectManagerAction
 504 {
 505         gchar *oldpath;
 506         gchar *newpath;
 507
 508         CollectManagerType type;
 509
 510         gint ref;
 511 };
 512
 513
 514 static GList *collection_manager_entry_list = nullptr;
 515 static GList *collection_manager_action_list = nullptr;
 516 static GList *collection_manager_action_tail = nullptr;
 517 static guint collection_manager_timer_id = 0; /* event source id */
 518
 519
 520 static CollectManagerAction *collect_manager_action_new(const gchar *oldpath, const gchar *newpath,
 521                                                         CollectManagerType type)
 522 {
 523         CollectManagerAction *action;
 524
 525         action = g_new0(CollectManagerAction, 1);
 526         action->ref = 1;
 527
 528         action->oldpath = g_strdup(oldpath);
 529         action->newpath = g_strdup(newpath);
 530
 531         action->type = type;
 532
 533         return action;
 534 }
 535
 536 static void collect_manager_action_ref(CollectManagerAction *action)
 537 {
 538         action->ref++;
 539 }
 540
 541 static void collect_manager_action_unref(CollectManagerAction *action)
 542 {
 543         action->ref--;
 544
 545         if (action->ref > 0) return;
 546
 547         g_free(action->oldpath);
 548         g_free(action->newpath);
 549         g_free(action);
 550 }
 551
 552 static void collect_manager_entry_free_data(CollectManagerEntry *entry)
 553 {
 554         g_list_free_full(entry->add_list, reinterpret_cast<GDestroyNotify>(collect_manager_action_unref));
 555         if (g_hash_table_size(entry->oldpath_hash) > 0)
 556                 g_hash_table_destroy(entry->oldpath_hash);
 557         else
 558                 g_hash_table_unref(entry->oldpath_hash);
 559         if (g_hash_table_size(entry->newpath_hash) > 0)
 560                 g_hash_table_destroy(entry->newpath_hash);
 561         else
 562                 g_hash_table_unref(entry->newpath_hash);
 563 }
 564
 565 static void collect_manager_entry_init_data(CollectManagerEntry *entry)
 566 {
 567         entry->add_list = nullptr;
 568         entry->oldpath_hash = g_hash_table_new_full(g_str_hash, g_str_equal, nullptr, reinterpret_cast<GDestroyNotify>(collect_manager_action_unref));
 569         entry->newpath_hash = g_hash_table_new(g_str_hash, g_str_equal);
 570         entry->empty = TRUE;
 571
 572 }
 573
 574 static CollectManagerEntry *collect_manager_entry_new(const gchar *path)
 575 {
 576         CollectManagerEntry *entry;
 577
 578         entry = g_new0(CollectManagerEntry, 1);
 579         entry->path = g_strdup(path);
 580         collect_manager_entry_init_data(entry);
 581
 582         collection_manager_entry_list = g_list_append(collection_manager_entry_list, entry);
 583
 584         return entry;
 585 }
 586
 587
 588 static void collect_manager_entry_free(CollectManagerEntry *entry)
 589 {
 590         collection_manager_entry_list = g_list_remove(collection_manager_entry_list, entry);
 591
 592         collect_manager_entry_free_data(entry);
 593
 594         g_free(entry->path);
 595         g_free(entry);
 596 }
 597
 598 static void collect_manager_entry_reset(CollectManagerEntry *entry)
 599 {
 600         collect_manager_entry_free_data(entry);
 601         collect_manager_entry_init_data(entry);
 602 }
 603
 604 static CollectManagerEntry *collect_manager_get_entry(const gchar *path)
 605 {
 606         GList *work;
 607
 608         work = collection_manager_entry_list;
 609         while (work)
 610                 {
 611                 CollectManagerEntry *entry;
 612
 613                 entry = static_cast<CollectManagerEntry *>(work->data);
 614                 work = work->next;
 615                 if (strcmp(entry->path, path) == 0)
 616                         {
 617                         return entry;
 618                         }
 619                 }
 620         return nullptr;
 621
 622 }
 623
 624 static void collect_manager_entry_add_action(CollectManagerEntry *entry, CollectManagerAction *action)
 625 {
 626
 627         CollectManagerAction *orig_action;
 628
 629         entry->empty = FALSE;
 630
 631         if (action->oldpath == nullptr)
 632                 {
 633                 /* add file */
 634                 if (action->newpath == nullptr)
 635                         {
 636                         return;
 637                         }
 638
 639                 orig_action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->newpath_hash, action->newpath));
 640                 if (orig_action)
 641                         {
 642                         /* target already exists */
 643                         log_printf("collection manager failed to add another action for target %s in collection %s\n",
 644                                 action->newpath, entry->path);
 645                         return;
 646                         }
 647                 entry->add_list = g_list_append(entry->add_list, action);
 648                 g_hash_table_insert(entry->newpath_hash, action->newpath, action);
 649                 collect_manager_action_ref(action);
 650                 return;
 651                 }
 652
 653         orig_action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->newpath_hash, action->oldpath));
 654         if (orig_action)
 655                 {
 656                 /* new action with the same file */
 657                 CollectManagerAction *new_action = collect_manager_action_new(orig_action->oldpath, action->newpath, action->type);
 658
 659                 if (new_action->oldpath)
 660                         {
 661                         g_hash_table_steal(entry->oldpath_hash, orig_action->oldpath);
 662                         g_hash_table_insert(entry->oldpath_hash, new_action->oldpath, new_action);
 663                         }
 664                 else
 665                         {
 666                         GList *work = g_list_find(entry->add_list, orig_action);
 667                         work->data = new_action;
 668                         }
 669
 670                 g_hash_table_steal(entry->newpath_hash, orig_action->newpath);
 671                 if (new_action->newpath)
 672                         {
 673                         g_hash_table_insert(entry->newpath_hash, new_action->newpath, new_action);
 674                         }
 675                 collect_manager_action_unref(orig_action);
 676                 return;
 677                 }
 678
 679
 680         orig_action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->oldpath_hash, action->oldpath));
 681         if (orig_action)
 682                 {
 683                 /* another action for the same source, ignore */
 684                 log_printf("collection manager failed to add another action for source %s in collection %s\n",
 685                         action->oldpath, entry->path);
 686                 return;
 687                 }
 688
 689         g_hash_table_insert(entry->oldpath_hash, action->oldpath, action);
 690         if (action->newpath)
 691                 {
 692                 g_hash_table_insert(entry->newpath_hash, action->newpath, action);
 693                 }
 694         collect_manager_action_ref(action);
 695 }
 696
 697 static gboolean collect_manager_process_action(CollectManagerEntry *entry, gchar **path_ptr)
 698 {
 699         gchar *path = *path_ptr;
 700         CollectManagerAction *action;
 701
 702         if (path == nullptr)
 703                 {
 704                 /* get new files */
 705                 if (entry->add_list)
 706                         {
 707                         action = static_cast<CollectManagerAction *>(entry->add_list->data);
 708                         g_assert(action->oldpath == nullptr);
 709                         entry->add_list = g_list_remove(entry->add_list, action);
 710                         path = g_strdup(action->newpath);
 711                         g_hash_table_remove(entry->newpath_hash, path);
 712                         collect_manager_action_unref(action);
 713                         }
 714                 *path_ptr = path;
 715                 return (path != nullptr);
 716                 }
 717
 718         action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->oldpath_hash, path));
 719
 720         if (action)
 721                 {
 722                 strcpy(*path_ptr, action->newpath);
 723                 return TRUE;
 724                 }
 725
 726         return FALSE; /* no change */
 727 }
 728
 729 static void collect_manager_refresh()
 730 {
 731         GList *list;
 732         GList *work;
 733         FileData *dir_fd;
 734
 735         dir_fd = file_data_new_dir(get_collections_dir());
 736         filelist_read(dir_fd, &list, nullptr);
 737         file_data_unref(dir_fd);
 738
 739         work = collection_manager_entry_list;
 740         while (work && list)
 741                 {
 742                 CollectManagerEntry *entry;
 743                 GList *list_step;
 744
 745                 entry = static_cast<CollectManagerEntry *>(work->data);
 746                 work = work->next;
 747
 748                 list_step = list;
 749                 while (list_step && entry)
 750                         {
 751                         FileData *fd;
 752
 753                         fd = static_cast<FileData *>(list_step->data);
 754                         list_step = list_step->next;
 755
 756                         if (strcmp(fd->path, entry->path) == 0)
 757                                 {
 758                                 list = g_list_remove(list, fd);
 759                                 file_data_unref(fd);
 760
 761                                 entry = nullptr;
 762                                 }
 763                         else
 764                                 {
 765                                 collect_manager_entry_free(entry);
 766
 767                                 entry = nullptr;
 768                                 }
 769                         }
 770                 }
 771
 772         work = list;
 773         while (work)
 774                 {
 775                 FileData *fd;
 776
 777                 fd = static_cast<FileData *>(work->data);
 778                 work = work->next;
 779
 780                 collect_manager_entry_new(fd->path);
 781                 }
 782
 783         filelist_free(list);
 784 }
 785
 786 static void collect_manager_process_actions(gint max)
 787 {
 788         if (collection_manager_action_list) DEBUG_1("collection manager processing actions");
 789
 790         while (collection_manager_action_list != nullptr && max > 0)
 791                 {
 792                 CollectManagerAction *action;
 793                 GList *work;
 794
 795                 action = static_cast<CollectManagerAction *>(collection_manager_action_list->data);
 796                 work = collection_manager_entry_list;
 797                 while (work)
 798                         {
 799                         CollectManagerEntry *entry;
 800
 801                         entry = static_cast<CollectManagerEntry *>(work->data);
 802                         work = work->next;
 803
 804                         if (action->type == COLLECTION_MANAGER_UPDATE)
 805                                 {
 806                                 collect_manager_entry_add_action(entry, action);
 807                                 }
 808                         else if (action->oldpath && action->newpath &&
 809                                  strcmp(action->newpath, entry->path) == 0)
 810                                 {
 811                                 /* convert action to standard add format */
 812                                 g_free(action->newpath);
 813                                 if (action->type == COLLECTION_MANAGER_ADD)
 814                                         {
 815                                         action->newpath = action->oldpath;
 816                                         action->oldpath = nullptr;
 817                                         }
 818                                 else if (action->type == COLLECTION_MANAGER_REMOVE)
 819                                         {
 820                                         action->newpath = nullptr;
 821                                         }
 822                                 collect_manager_entry_add_action(entry, action);
 823                                 }
 824
 825                         max--;
 826                         }
 827
 828                 if (action->type != COLLECTION_MANAGER_UPDATE &&
 829                     action->oldpath && action->newpath)
 830                         {
 831                         log_printf("collection manager failed to %s %s for collection %s\n",
 832                                 (action->type == COLLECTION_MANAGER_ADD) ? "add" : "remove",
 833                                 action->oldpath, action->newpath);
 834                         }
 835
 836                 if (collection_manager_action_tail == collection_manager_action_list)
 837                         {
 838                         collection_manager_action_tail = nullptr;
 839                         }
 840                 collection_manager_action_list = g_list_remove(collection_manager_action_list, action);
 841                 collect_manager_action_unref(action);
 842                 }
 843 }
 844
 845 static gboolean collect_manager_process_entry(CollectManagerEntry *entry)
 846 {
 847         CollectionData *cd;
 848
 849         if (entry->empty) return FALSE;
 850
 851         cd = collection_new(entry->path);
 852         (void) collection_load_private(cd, entry->path, COLLECTION_LOAD_NONE);
 853
 854         collection_unref(cd);
 855
 856         return TRUE;
 857 }
 858
 859 static gboolean collect_manager_process_entry_list()
 860 {
 861         GList *work;
 862
 863         work = collection_manager_entry_list;
 864         while (work)
 865                 {
 866                 CollectManagerEntry *entry;
 867
 868                 entry = static_cast<CollectManagerEntry *>(work->data);
 869                 work = work->next;
 870                 if (collect_manager_process_entry(entry)) return TRUE;
 871                 }
 872
 873         return FALSE;
 874 }
 875
 876
 877
 878 static gboolean collect_manager_process_cb(gpointer)
 879 {
 880         if (collection_manager_action_list) collect_manager_refresh();
 881         collect_manager_process_actions(COLLECT_MANAGER_ACTIONS_PER_IDLE);
 882         if (collection_manager_action_list) return G_SOURCE_CONTINUE;
 883
 884         if (collect_manager_process_entry_list()) return G_SOURCE_CONTINUE;
 885
 886         DEBUG_1("collection manager is up to date");
 887         return G_SOURCE_REMOVE;
 888 }
 889
 890 static gboolean collect_manager_timer_cb(gpointer)
 891 {
 892         DEBUG_1("collection manager timer expired");
 893
 894         g_idle_add_full(G_PRIORITY_LOW, collect_manager_process_cb, nullptr, nullptr);
 895
 896         collection_manager_timer_id = 0;
 897         return FALSE;
 898 }
 899
 900 static void collect_manager_timer_push(gint stop)
 901 {
 902         if (collection_manager_timer_id)
 903                 {
 904                 if (!stop) return;
 905
 906                 g_source_remove(collection_manager_timer_id);
 907                 collection_manager_timer_id = 0;
 908                 }
 909
 910         if (!stop)
 911                 {
 912                 collection_manager_timer_id = g_timeout_add(COLLECT_MANAGER_FLUSH_DELAY,
 913                                                             collect_manager_timer_cb, nullptr);
 914                 DEBUG_1("collection manager timer started");
 915                 }
 916 }
 917
 918 static void collect_manager_add_action(CollectManagerAction *action)
 919 {
 920         if (!action) return;
 921
 922         /* we keep track of the list's tail to keep this a n(1) operation */
 923
 924         if (collection_manager_action_tail)
 925                 {
 926                 collection_manager_action_tail = g_list_append(collection_manager_action_tail, action);
 927                 collection_manager_action_tail = collection_manager_action_tail->next;
 928                 }
 929         else
 930                 {
 931                 collection_manager_action_list = g_list_append(collection_manager_action_list, action);
 932                 collection_manager_action_tail = collection_manager_action_list;
 933                 }
 934
 935         collect_manager_timer_push(FALSE);
 936 }
 937
 938 void collect_manager_moved(FileData *fd)
 939 {
 940         CollectManagerAction *action;
 941         const gchar *oldpath = fd->change->source;
 942         const gchar *newpath = fd->change->dest;
 943
 944         action = collect_manager_action_new(oldpath, newpath, COLLECTION_MANAGER_UPDATE);
 945         collect_manager_add_action(action);
 946 }
 947
 948 void collect_manager_add(FileData *fd, const gchar *collection)
 949 {
 950         CollectManagerAction *action;
 951         CollectWindow *cw;
 952
 953         if (!fd || !collection) return;
 954
 955         cw = collection_window_find_by_path(collection);
 956         if (cw)
 957                 {
 958                 if (collection_list_find_fd(cw->cd->list, fd) == nullptr)
 959                         {
 960                         collection_add(cw->cd, fd, FALSE);
 961                         }
 962                 return;
 963                 }
 964
 965         action = collect_manager_action_new(fd->path, collection, COLLECTION_MANAGER_ADD);
 966         collect_manager_add_action(action);
 967 }
 968
 969 void collect_manager_remove(FileData *fd, const gchar *collection)
 970 {
 971         CollectManagerAction *action;
 972         CollectWindow *cw;
 973
 974         if (!fd || !collection) return;
 975
 976         cw = collection_window_find_by_path(collection);
 977         if (cw)
 978                 {
 979                 while (collection_remove(cw->cd, fd));
 980                 return;
 981                 }
 982
 983         action = collect_manager_action_new(fd->path, collection, COLLECTION_MANAGER_REMOVE);
 984         collect_manager_add_action(action);
 985 }
 986
 987 void collect_manager_flush()
 988 {
 989         collect_manager_timer_push(TRUE);
 990
 991         DEBUG_1("collection manager flushing");
 992         while (collect_manager_process_cb(nullptr));
 993 }
 994
 995 void collect_manager_notify_cb(FileData *fd, NotifyType type, gpointer)
 996 {
 997         if (!(type & NOTIFY_CHANGE) || !fd->change) return;
 998
 999         DEBUG_1("Notify collect_manager: %s %04x", fd->path, type);
1000         switch (fd->change->type)
1001                 {
1002                 case FILEDATA_CHANGE_MOVE:
1003                         collect_manager_moved(fd);
1004                         break;
1005                 case FILEDATA_CHANGE_COPY:
1006                         break;
1007                 case FILEDATA_CHANGE_RENAME:
1008                         collect_manager_moved(fd);
1009                         break;
1010                 case FILEDATA_CHANGE_DELETE:
1011                 case FILEDATA_CHANGE_UNSPECIFIED:
1012                 case FILEDATA_CHANGE_WRITE_METADATA:
1013                         break;
1014                 }
1015 }
1016
1017 static gint collection_manager_sort_cb(gconstpointer a, gconstpointer b)
1018 {
1019         auto char_a = static_cast<const gchar *>(a);
1020         auto char_b = static_cast<const gchar *>(b);
1021
1022         return g_strcmp0(char_a, char_b);
1023 }
1024
1025 /**
1026  * @brief Creates sorted list of collections
1027  * @param[out] names_exc sorted list of collections names excluding extension
1028  * @param[out] names_inc sorted list of collections names including extension
1029  * @param[out] paths sorted list of collection paths
1030  *
1031  * Lists of type gchar.
1032  * Used lists must be freed with string_list_free()
1033  */
1034 void collect_manager_list(GList **names_exc, GList **names_inc, GList **paths)
1035 {
1036         FileData *dir_fd;
1037         GList *list = nullptr;
1038         gchar *name;
1039         FileData *fd;
1040         gchar *filename;
1041
1042         if (names_exc == nullptr && names_inc == nullptr && paths == nullptr)
1043                 {
1044                 return;
1045                 }
1046
1047         dir_fd = file_data_new_dir((get_collections_dir()));
1048
1049         filelist_read(dir_fd, &list, nullptr);
1050
1051         while (list)
1052                 {
1053                 fd = static_cast<FileData *>(list->data);
1054                 filename = g_strdup(filename_from_path(fd->path));
1055
1056                 if (file_extension_match(filename, GQ_COLLECTION_EXT))
1057                         {
1058                         name = remove_extension_from_path(filename);
1059
1060                         if (names_exc != nullptr)
1061                                 {
1062                                 *names_exc = g_list_insert_sorted(*names_exc, g_strdup(name),
1063                                                                                         collection_manager_sort_cb);
1064                                 *names_exc = g_list_first(*names_exc);
1065                                 }
1066                         if (names_inc != nullptr)
1067                                 {
1068                                 *names_inc = g_list_insert_sorted(*names_inc,filename,
1069                                                                                         collection_manager_sort_cb);
1070                                 *names_inc = g_list_first(*names_inc);
1071                                 }
1072                         if (paths != nullptr)
1073                                 {
1074                                 *paths = g_list_insert_sorted(*paths, g_strdup(fd->path),
1075                                                                                         collection_manager_sort_cb);
1076                                 *paths = g_list_first(*paths);
1077                                 }
1078                         g_free(name);
1079                         }
1080                 list = list->next;
1081                 g_free(filename);
1082                 }
1083
1084         filelist_free(list);
1085 }
1086 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */