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 "collect-io.h"
  23
  24 #include <cstdio>
  25 #include <cstring>
  26
  27 #include <gdk-pixbuf/gdk-pixbuf.h>
  28 #include <gdk/gdk.h>
  29 #include <glib-object.h>
  30
  31 #include <config.h>
  32
  33 #include "collect.h"
  34 #include "debug.h"
  35 #include "filedata.h"
  36 #include "intl.h"
  37 #include "layout-util.h"
  38 #include "main-defines.h"
  39 #include "options.h"
  40 #include "secure-save.h"
  41 #include "thumb.h"
  42 #include "ui-fileops.h"
  43
  44 #define GQ_COLLECTION_MARKER "#" GQ_APPNAME
  45
  46 enum {
  47         GQ_COLLECTION_FAIL_MIN =     300,
  48         GQ_COLLECTION_FAIL_PERCENT = 98,
  49         GQ_COLLECTION_READ_BUFSIZE = 4096
  50 };
  51
  52 struct CollectManagerEntry;
  53
  54 static void collection_load_thumb_step(CollectionData *cd);
  55 static gboolean collection_save_private(CollectionData *cd, const gchar *path);
  56
  57 static CollectManagerEntry *collect_manager_get_entry(const gchar *path);
  58 static void collect_manager_entry_reset(CollectManagerEntry *entry);
  59 static gint collect_manager_process_action(CollectManagerEntry *entry, gchar **path_ptr);
  60
  61 namespace
  62 {
  63
  64 gboolean scan_geometry(gchar *buffer, GdkRectangle &window)
  65 {
  66         gint nx;
  67         gint ny;
  68         gint nw;
  69         gint nh;
  70
  71         if (sscanf(buffer, "%d %d %d %d", &nx, &ny, &nw, &nh) != 4) return FALSE;
  72
  73         window.x = nx;
  74         window.y = ny;
  75         window.width = nw;
  76         window.height = nh;
  77
  78         return TRUE;
  79 }
  80
  81 }
  82
  83 static gboolean collection_load_private(CollectionData *cd, const gchar *path, CollectionLoadFlags flags)
  84 {
  85         gchar s_buf[GQ_COLLECTION_READ_BUFSIZE];
  86         FILE *f;
  87         gchar *pathl;
  88         gboolean limit_failures = TRUE;
  89         gboolean success = TRUE;
  90         gboolean has_official_header = FALSE;
  91         gboolean has_geometry_header = FALSE;
  92         gboolean has_gqview_header   = FALSE;
  93         gboolean need_header     = TRUE;
  94         guint total = 0;
  95         guint fail = 0;
  96         gboolean changed = FALSE;
  97         CollectManagerEntry *entry = nullptr;
  98         guint flush = !!(flags & COLLECTION_LOAD_FLUSH);
  99         guint append = !!(flags & COLLECTION_LOAD_APPEND);
 100         guint only_geometry = !!(flags & COLLECTION_LOAD_GEOMETRY);
 101         gboolean reading_extended_filename = FALSE;
 102         gchar *buffer2;
 103
 104         if (!only_geometry)
 105                 {
 106                 collection_load_stop(cd);
 107
 108                 if (flush)
 109                         collect_manager_flush();
 110                 else
 111                         entry = collect_manager_get_entry(path);
 112
 113                 if (!append)
 114                         {
 115                         g_list_free_full(cd->list, reinterpret_cast<GDestroyNotify>(collection_info_free));
 116                         cd->list = nullptr;
 117                         }
 118                 }
 119
 120         if (!path && !cd->path) return FALSE;
 121
 122         if (!path) path = cd->path;
 123
 124         pathl = path_from_utf8(path);
 125
 126         DEBUG_1("collection load: append=%d flush=%d only_geometry=%d path=%s",
 127                           append, flush, only_geometry, pathl);
 128
 129         /* load it */
 130         f = fopen(pathl, "r");
 131         g_free(pathl);
 132         if (!f)
 133                 {
 134                 log_printf("Failed to open collection file: \"%s\"\n", path);
 135                 return FALSE;
 136                 }
 137
 138         GString *extended_filename_buffer = g_string_new(nullptr);
 139         while (fgets(s_buf, sizeof(s_buf), f))
 140                 {
 141                 gchar *buf;
 142                 gchar *p = s_buf;
 143
 144                 if (!reading_extended_filename)
 145                         {
 146                         /* Skip whitespaces and empty lines */
 147                         while (*p && g_ascii_isspace(*p)) p++;
 148                         if (*p == '\n' || *p == '\r') continue;
 149
 150                         /* Parse comments */
 151                         if (*p == '#')
 152                                 {
 153                                 if (!need_header) continue;
 154                                 if (g_ascii_strncasecmp(p, GQ_COLLECTION_MARKER, strlen(GQ_COLLECTION_MARKER)) == 0)
 155                                         {
 156                                         /* Looks like an official collection, allow unchecked input.
 157                                          * All this does is allow adding files that may not exist,
 158                                          * which is needed for the collection manager to work.
 159                                          * Also unofficial files abort after too many invalid entries.
 160                                          */
 161                                         has_official_header = TRUE;
 162                                         limit_failures = FALSE;
 163                                         }
 164                                 else if (strncmp(p, "#geometry:", 10 ) == 0 &&
 165                                          scan_geometry(p + 10, cd->window))
 166                                         {
 167                                         has_geometry_header = TRUE;
 168                                         cd->window_read = TRUE;
 169                                         if (only_geometry) break;
 170                                         }
 171                                 else if (g_ascii_strncasecmp(p, "#GQview collection", strlen("#GQview collection")) == 0)
 172                                         {
 173                                         /* As 2008/04/15 there is no difference between our collection file format
 174                                          * and GQview 2.1.5 collection file format so ignore failures as well. */
 175                                         has_gqview_header = TRUE;
 176                                         limit_failures = FALSE;
 177                                         }
 178                                 need_header = (!has_official_header && !has_gqview_header) || !has_geometry_header;
 179                                 continue;
 180                                 }
 181
 182                         if (only_geometry) continue;
 183                         }
 184
 185                 /* Read filenames */
 186                 /** @todo This is not safe! */
 187                 /* Updated: anything within double quotes is considered a filename */
 188                 if (!reading_extended_filename)
 189                         {
 190                         /* not yet reading filename */
 191                         while (*p && *p != '"') p++;
 192                         if (*p) p++;
 193                         /* start of filename read */
 194                         buf = p;
 195                         while (*p && *p != '"') p++;
 196                         if (p[0] != '"')
 197                                 {
 198                                 /* first part of extended filename */
 199                                 g_string_append(extended_filename_buffer, buf);
 200                                 reading_extended_filename = TRUE;
 201                                 continue;
 202                                 }
 203                         }
 204                 else
 205                         {
 206                         buf = p;
 207                         while (*p && *p != '"') p++;
 208                         if (p[0] != '"')
 209                                 {
 210                                 /* end of extended filename still not found */
 211                                 g_string_append(extended_filename_buffer, buf);
 212                                 continue;
 213                                 }
 214
 215                         /* end of extended filename found */
 216                         g_string_append_len(extended_filename_buffer, buf, p - buf);
 217                         reading_extended_filename = FALSE;
 218                         }
 219
 220                 if (extended_filename_buffer->len > 0)
 221                         {
 222                         buffer2 = g_strdup(extended_filename_buffer->str);
 223                         g_string_erase(extended_filename_buffer, 0, -1);
 224                         }
 225                 else
 226                         {
 227                         *p = 0;
 228                         buffer2 = g_strdup(buf);
 229                         }
 230
 231                 if (*buffer2)
 232                         {
 233                         gboolean valid;
 234
 235                         if (!flush)
 236                                 changed |= collect_manager_process_action(entry, &buffer2);
 237
 238                         valid = (buffer2[0] == G_DIR_SEPARATOR && collection_add_check(cd, file_data_new_simple(buffer2), FALSE, TRUE));
 239                         if (!valid) DEBUG_1("collection invalid file: %s", buffer2);
 240
 241                         total++;
 242                         if (!valid)
 243                                 {
 244                                 fail++;
 245                                 if (limit_failures &&
 246                                     fail > GQ_COLLECTION_FAIL_MIN &&
 247                                     fail * 100 / total > GQ_COLLECTION_FAIL_PERCENT)
 248                                         {
 249                                         log_printf("%d invalid filenames in unofficial collection file, closing: %s\n", fail, path);
 250                                         success = FALSE;
 251                                         break;
 252                                         }
 253                                 }
 254                         }
 255                 g_free(buffer2);
 256                 }
 257
 258         g_string_free(extended_filename_buffer, TRUE);
 259
 260         DEBUG_1("collection files: total = %d fail = %d official=%d gqview=%d geometry=%d",
 261                           total, fail, has_official_header, has_gqview_header, has_geometry_header);
 262
 263         fclose(f);
 264         if (only_geometry) return has_geometry_header;
 265
 266         if (!flush)
 267                 {
 268                 gchar *buf = nullptr;
 269                 while (collect_manager_process_action(entry, &buf))
 270                         {
 271                         collection_add_check(cd, file_data_new_group(buf), FALSE, TRUE);
 272                         changed = TRUE;
 273                         g_free(buf);
 274                         buf = nullptr;
 275                         }
 276                 }
 277
 278         cd->list = collection_list_sort(cd->list, cd->sort_method);
 279
 280         if (!flush && changed && success)
 281                 collection_save_private(cd, path);
 282
 283         if (!flush)
 284                 collect_manager_entry_reset(entry);
 285
 286         if (!append) cd->changed = FALSE;
 287
 288         return success;
 289 }
 290
 291 gboolean collection_load(CollectionData *cd, const gchar *path, CollectionLoadFlags flags)
 292 {
 293         if (collection_load_private(cd, path, static_cast<CollectionLoadFlags>(flags | COLLECTION_LOAD_FLUSH)))
 294                 {
 295                 layout_recent_add_path(cd->path);
 296                 return TRUE;
 297                 }
 298
 299         return FALSE;
 300 }
 301
 302 static void collection_load_thumb_do(CollectionData *cd)
 303 {
 304         GdkPixbuf *pixbuf;
 305
 306         if (!cd->thumb_loader || !g_list_find(cd->list, cd->thumb_info)) return;
 307
 308         pixbuf = thumb_loader_get_pixbuf(cd->thumb_loader);
 309         collection_info_set_thumb(cd->thumb_info, pixbuf);
 310         g_object_unref(pixbuf);
 311
 312         if (cd->info_updated_func) cd->info_updated_func(cd, cd->thumb_info, cd->info_updated_data);
 313 }
 314
 315 static void collection_load_thumb_error_cb(ThumbLoader *, gpointer data)
 316 {
 317         auto cd = static_cast<CollectionData *>(data);
 318
 319         collection_load_thumb_do(cd);
 320         collection_load_thumb_step(cd);
 321 }
 322
 323 static void collection_load_thumb_done_cb(ThumbLoader *, gpointer data)
 324 {
 325         auto cd = static_cast<CollectionData *>(data);
 326
 327         collection_load_thumb_do(cd);
 328         collection_load_thumb_step(cd);
 329 }
 330
 331 static void collection_load_thumb_step(CollectionData *cd)
 332 {
 333         GList *work;
 334         CollectInfo *ci;
 335
 336         if (!cd->list)
 337                 {
 338                 collection_load_stop(cd);
 339                 return;
 340                 }
 341
 342         work = cd->list;
 343         ci = static_cast<CollectInfo *>(work->data);
 344         work = work->next;
 345         /* find first unloaded thumb */
 346         while (work && ci->pixbuf)
 347                 {
 348                 ci = static_cast<CollectInfo *>(work->data);
 349                 work = work->next;
 350                 }
 351
 352         if (!ci || ci->pixbuf)
 353                 {
 354                 /* done */
 355                 collection_load_stop(cd);
 356
 357                 /* send a NULL CollectInfo to notify end */
 358                 if (cd->info_updated_func) cd->info_updated_func(cd, nullptr, cd->info_updated_data);
 359
 360                 return;
 361                 }
 362
 363         /* setup loader and call it */
 364         cd->thumb_info = ci;
 365         thumb_loader_free(cd->thumb_loader);
 366         cd->thumb_loader = thumb_loader_new(options->thumbnails.max_width, options->thumbnails.max_height);
 367         thumb_loader_set_callbacks(cd->thumb_loader,
 368                                    collection_load_thumb_done_cb,
 369                                    collection_load_thumb_error_cb,
 370                                    nullptr,
 371                                    cd);
 372
 373         /* start it */
 374         if (!thumb_loader_start(cd->thumb_loader, ci->fd))
 375                 {
 376                 /* error, handle it, do next */
 377                 DEBUG_1("error loading thumb for %s", ci->fd->path);
 378                 collection_load_thumb_do(cd);
 379                 collection_load_thumb_step(cd);
 380                 }
 381 }
 382
 383 void collection_load_thumb_idle(CollectionData *cd)
 384 {
 385         if (!cd->thumb_loader) collection_load_thumb_step(cd);
 386 }
 387
 388 gboolean collection_load_begin(CollectionData *cd, const gchar *path, CollectionLoadFlags flags)
 389 {
 390         if (!collection_load(cd, path, flags)) return FALSE;
 391
 392         collection_load_thumb_idle(cd);
 393
 394         return TRUE;
 395 }
 396
 397 void collection_load_stop(CollectionData *cd)
 398 {
 399         if (!cd->thumb_loader) return;
 400
 401         thumb_loader_free(cd->thumb_loader);
 402         cd->thumb_loader = nullptr;
 403 }
 404
 405 static gboolean collection_save_private(CollectionData *cd, const gchar *path)
 406 {
 407         SecureSaveInfo *ssi;
 408         GList *work;
 409         gchar *pathl;
 410
 411         if (!path && !cd->path) return FALSE;
 412
 413         if (!path)
 414                 {
 415                 path = cd->path;
 416                 }
 417
 418
 419         pathl = path_from_utf8(path);
 420         ssi = secure_open(pathl);
 421         g_free(pathl);
 422         if (!ssi)
 423                 {
 424                 log_printf(_("failed to open collection (write) \"%s\"\n"), path);
 425                 return FALSE;
 426                 }
 427
 428         secure_fprintf(ssi, "%s collection\n", GQ_COLLECTION_MARKER);
 429         secure_fprintf(ssi, "#created with %s version %s\n", GQ_APPNAME, VERSION);
 430
 431         collection_update_geometry(cd);
 432         if (cd->window_read)
 433                 {
 434                 secure_fprintf(ssi, "#geometry: %d %d %d %d\n", cd->window.x, cd->window.y, cd->window.width, cd->window.height);
 435                 }
 436
 437         work = cd->list;
 438         while (work && secsave_errno == SS_ERR_NONE)
 439                 {
 440                 auto ci = static_cast<CollectInfo *>(work->data);
 441                 secure_fprintf(ssi, "\"%s\"\n", ci->fd->path);
 442                 work = work->next;
 443                 }
 444
 445         secure_fprintf(ssi, "#end\n");
 446
 447         if (secure_close(ssi))
 448                 {
 449                 log_printf(_("error saving collection file: %s\nerror: %s\n"), path,
 450                             secsave_strerror(secsave_errno));
 451                 return FALSE;
 452                 }
 453
 454         if (!cd->path || strcmp(path, cd->path) != 0)
 455                 {
 456                 gchar *buf = cd->path;
 457                 cd->path = g_strdup(path);
 458                 path = cd->path;
 459                 g_free(buf);
 460
 461                 g_free(cd->name);
 462                 cd->name = g_strdup(filename_from_path(cd->path));
 463
 464                 collection_path_changed(cd);
 465                 }
 466
 467         cd->changed = FALSE;
 468
 469         return TRUE;
 470 }
 471
 472 gboolean collection_save(CollectionData *cd, const gchar *path)
 473 {
 474         if (collection_save_private(cd, path))
 475                 {
 476                 layout_recent_add_path(cd->path);
 477                 return TRUE;
 478                 }
 479
 480         return FALSE;
 481 }
 482
 483 gboolean collection_load_only_geometry(CollectionData *cd, const gchar *path)
 484 {
 485         return collection_load(cd, path, COLLECTION_LOAD_GEOMETRY);
 486 }
 487
 488
 489 /*
 490  *-------------------------------------------------------------------
 491  * collection manager
 492  *-------------------------------------------------------------------
 493  */
 494
 495 enum {
 496         COLLECT_MANAGER_ACTIONS_PER_IDLE = 1000,
 497         COLLECT_MANAGER_FLUSH_DELAY =      10000
 498 };
 499
 500 struct CollectManagerEntry
 501 {
 502         gchar *path;
 503         GList *add_list;
 504         GHashTable *oldpath_hash;
 505         GHashTable *newpath_hash;
 506         gboolean empty;
 507 };
 508
 509 enum CollectManagerType {
 510         COLLECTION_MANAGER_UPDATE,
 511         COLLECTION_MANAGER_ADD,
 512         COLLECTION_MANAGER_REMOVE
 513 };
 514
 515 struct CollectManagerAction
 516 {
 517         gchar *oldpath;
 518         gchar *newpath;
 519
 520         CollectManagerType type;
 521
 522         gint ref;
 523 };
 524
 525
 526 static GList *collection_manager_entry_list = nullptr;
 527 static GList *collection_manager_action_list = nullptr;
 528 static GList *collection_manager_action_tail = nullptr;
 529 static guint collection_manager_timer_id = 0; /* event source id */
 530
 531
 532 static CollectManagerAction *collect_manager_action_new(const gchar *oldpath, const gchar *newpath,
 533                                                         CollectManagerType type)
 534 {
 535         CollectManagerAction *action;
 536
 537         action = g_new0(CollectManagerAction, 1);
 538         action->ref = 1;
 539
 540         action->oldpath = g_strdup(oldpath);
 541         action->newpath = g_strdup(newpath);
 542
 543         action->type = type;
 544
 545         return action;
 546 }
 547
 548 static void collect_manager_action_ref(CollectManagerAction *action)
 549 {
 550         action->ref++;
 551 }
 552
 553 static void collect_manager_action_unref(CollectManagerAction *action)
 554 {
 555         action->ref--;
 556
 557         if (action->ref > 0) return;
 558
 559         g_free(action->oldpath);
 560         g_free(action->newpath);
 561         g_free(action);
 562 }
 563
 564 static void collect_manager_entry_free_data(CollectManagerEntry *entry)
 565 {
 566         g_list_free_full(entry->add_list, reinterpret_cast<GDestroyNotify>(collect_manager_action_unref));
 567         if (g_hash_table_size(entry->oldpath_hash) > 0)
 568                 g_hash_table_destroy(entry->oldpath_hash);
 569         else
 570                 g_hash_table_unref(entry->oldpath_hash);
 571         if (g_hash_table_size(entry->newpath_hash) > 0)
 572                 g_hash_table_destroy(entry->newpath_hash);
 573         else
 574                 g_hash_table_unref(entry->newpath_hash);
 575 }
 576
 577 static void collect_manager_entry_init_data(CollectManagerEntry *entry)
 578 {
 579         entry->add_list = nullptr;
 580         entry->oldpath_hash = g_hash_table_new_full(g_str_hash, g_str_equal, nullptr, reinterpret_cast<GDestroyNotify>(collect_manager_action_unref));
 581         entry->newpath_hash = g_hash_table_new(g_str_hash, g_str_equal);
 582         entry->empty = TRUE;
 583
 584 }
 585
 586 static CollectManagerEntry *collect_manager_entry_new(const gchar *path)
 587 {
 588         CollectManagerEntry *entry;
 589
 590         entry = g_new0(CollectManagerEntry, 1);
 591         entry->path = g_strdup(path);
 592         collect_manager_entry_init_data(entry);
 593
 594         collection_manager_entry_list = g_list_append(collection_manager_entry_list, entry);
 595
 596         return entry;
 597 }
 598
 599
 600 static void collect_manager_entry_free(CollectManagerEntry *entry)
 601 {
 602         collection_manager_entry_list = g_list_remove(collection_manager_entry_list, entry);
 603
 604         collect_manager_entry_free_data(entry);
 605
 606         g_free(entry->path);
 607         g_free(entry);
 608 }
 609
 610 static void collect_manager_entry_reset(CollectManagerEntry *entry)
 611 {
 612         collect_manager_entry_free_data(entry);
 613         collect_manager_entry_init_data(entry);
 614 }
 615
 616 static CollectManagerEntry *collect_manager_get_entry(const gchar *path)
 617 {
 618         GList *work;
 619
 620         work = collection_manager_entry_list;
 621         while (work)
 622                 {
 623                 CollectManagerEntry *entry;
 624
 625                 entry = static_cast<CollectManagerEntry *>(work->data);
 626                 work = work->next;
 627                 if (strcmp(entry->path, path) == 0)
 628                         {
 629                         return entry;
 630                         }
 631                 }
 632         return nullptr;
 633
 634 }
 635
 636 static void collect_manager_entry_add_action(CollectManagerEntry *entry, CollectManagerAction *action)
 637 {
 638
 639         CollectManagerAction *orig_action;
 640
 641         entry->empty = FALSE;
 642
 643         if (action->oldpath == nullptr)
 644                 {
 645                 /* add file */
 646                 if (action->newpath == nullptr)
 647                         {
 648                         return;
 649                         }
 650
 651                 orig_action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->newpath_hash, action->newpath));
 652                 if (orig_action)
 653                         {
 654                         /* target already exists */
 655                         log_printf("collection manager failed to add another action for target %s in collection %s\n",
 656                                 action->newpath, entry->path);
 657                         return;
 658                         }
 659                 entry->add_list = g_list_append(entry->add_list, action);
 660                 g_hash_table_insert(entry->newpath_hash, action->newpath, action);
 661                 collect_manager_action_ref(action);
 662                 return;
 663                 }
 664
 665         orig_action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->newpath_hash, action->oldpath));
 666         if (orig_action)
 667                 {
 668                 /* new action with the same file */
 669                 CollectManagerAction *new_action = collect_manager_action_new(orig_action->oldpath, action->newpath, action->type);
 670
 671                 if (new_action->oldpath)
 672                         {
 673                         g_hash_table_steal(entry->oldpath_hash, orig_action->oldpath);
 674                         g_hash_table_insert(entry->oldpath_hash, new_action->oldpath, new_action);
 675                         }
 676                 else
 677                         {
 678                         GList *work = g_list_find(entry->add_list, orig_action);
 679                         work->data = new_action;
 680                         }
 681
 682                 g_hash_table_steal(entry->newpath_hash, orig_action->newpath);
 683                 if (new_action->newpath)
 684                         {
 685                         g_hash_table_insert(entry->newpath_hash, new_action->newpath, new_action);
 686                         }
 687                 collect_manager_action_unref(orig_action);
 688                 return;
 689                 }
 690
 691
 692         orig_action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->oldpath_hash, action->oldpath));
 693         if (orig_action)
 694                 {
 695                 /* another action for the same source, ignore */
 696                 log_printf("collection manager failed to add another action for source %s in collection %s\n",
 697                         action->oldpath, entry->path);
 698                 return;
 699                 }
 700
 701         g_hash_table_insert(entry->oldpath_hash, action->oldpath, action);
 702         if (action->newpath)
 703                 {
 704                 g_hash_table_insert(entry->newpath_hash, action->newpath, action);
 705                 }
 706         collect_manager_action_ref(action);
 707 }
 708
 709 static gboolean collect_manager_process_action(CollectManagerEntry *entry, gchar **path_ptr)
 710 {
 711         gchar *path = *path_ptr;
 712         CollectManagerAction *action;
 713
 714         if (path == nullptr)
 715                 {
 716                 /* get new files */
 717                 if (entry->add_list)
 718                         {
 719                         action = static_cast<CollectManagerAction *>(entry->add_list->data);
 720                         g_assert(action->oldpath == nullptr);
 721                         entry->add_list = g_list_remove(entry->add_list, action);
 722                         path = g_strdup(action->newpath);
 723                         g_hash_table_remove(entry->newpath_hash, path);
 724                         collect_manager_action_unref(action);
 725                         }
 726                 *path_ptr = path;
 727                 return (path != nullptr);
 728                 }
 729
 730         action = static_cast<CollectManagerAction *>(g_hash_table_lookup(entry->oldpath_hash, path));
 731
 732         if (action)
 733                 {
 734                 strcpy(*path_ptr, action->newpath);
 735                 return TRUE;
 736                 }
 737
 738         return FALSE; /* no change */
 739 }
 740
 741 static void collect_manager_refresh()
 742 {
 743         GList *list;
 744         GList *work;
 745         FileData *dir_fd;
 746
 747         dir_fd = file_data_new_dir(get_collections_dir());
 748         filelist_read(dir_fd, &list, nullptr);
 749         file_data_unref(dir_fd);
 750
 751         work = collection_manager_entry_list;
 752         while (work && list)
 753                 {
 754                 CollectManagerEntry *entry;
 755                 GList *list_step;
 756
 757                 entry = static_cast<CollectManagerEntry *>(work->data);
 758                 work = work->next;
 759
 760                 list_step = list;
 761                 while (list_step && entry)
 762                         {
 763                         FileData *fd;
 764
 765                         fd = static_cast<FileData *>(list_step->data);
 766                         list_step = list_step->next;
 767
 768                         if (strcmp(fd->path, entry->path) == 0)
 769                                 {
 770                                 list = g_list_remove(list, fd);
 771                                 file_data_unref(fd);
 772
 773                                 entry = nullptr;
 774                                 }
 775                         else
 776                                 {
 777                                 collect_manager_entry_free(entry);
 778
 779                                 entry = nullptr;
 780                                 }
 781                         }
 782                 }
 783
 784         work = list;
 785         while (work)
 786                 {
 787                 FileData *fd;
 788
 789                 fd = static_cast<FileData *>(work->data);
 790                 work = work->next;
 791
 792                 collect_manager_entry_new(fd->path);
 793                 }
 794
 795         filelist_free(list);
 796 }
 797
 798 static void collect_manager_process_actions(gint max)
 799 {
 800         if (collection_manager_action_list) DEBUG_1("collection manager processing actions");
 801
 802         while (collection_manager_action_list != nullptr && max > 0)
 803                 {
 804                 CollectManagerAction *action;
 805                 GList *work;
 806
 807                 action = static_cast<CollectManagerAction *>(collection_manager_action_list->data);
 808                 work = collection_manager_entry_list;
 809                 while (work)
 810                         {
 811                         CollectManagerEntry *entry;
 812
 813                         entry = static_cast<CollectManagerEntry *>(work->data);
 814                         work = work->next;
 815
 816                         if (action->type == COLLECTION_MANAGER_UPDATE)
 817                                 {
 818                                 collect_manager_entry_add_action(entry, action);
 819                                 }
 820                         else if (action->oldpath && action->newpath &&
 821                                  strcmp(action->newpath, entry->path) == 0)
 822                                 {
 823                                 /* convert action to standard add format */
 824                                 g_free(action->newpath);
 825                                 if (action->type == COLLECTION_MANAGER_ADD)
 826                                         {
 827                                         action->newpath = action->oldpath;
 828                                         action->oldpath = nullptr;
 829                                         }
 830                                 else if (action->type == COLLECTION_MANAGER_REMOVE)
 831                                         {
 832                                         action->newpath = nullptr;
 833                                         }
 834                                 collect_manager_entry_add_action(entry, action);
 835                                 }
 836
 837                         max--;
 838                         }
 839
 840                 if (action->type != COLLECTION_MANAGER_UPDATE &&
 841                     action->oldpath && action->newpath)
 842                         {
 843                         log_printf("collection manager failed to %s %s for collection %s\n",
 844                                 (action->type == COLLECTION_MANAGER_ADD) ? "add" : "remove",
 845                                 action->oldpath, action->newpath);
 846                         }
 847
 848                 if (collection_manager_action_tail == collection_manager_action_list)
 849                         {
 850                         collection_manager_action_tail = nullptr;
 851                         }
 852                 collection_manager_action_list = g_list_remove(collection_manager_action_list, action);
 853                 collect_manager_action_unref(action);
 854                 }
 855 }
 856
 857 static gboolean collect_manager_process_entry(CollectManagerEntry *entry)
 858 {
 859         CollectionData *cd;
 860
 861         if (entry->empty) return FALSE;
 862
 863         cd = collection_new(entry->path);
 864         (void) collection_load_private(cd, entry->path, COLLECTION_LOAD_NONE);
 865
 866         collection_unref(cd);
 867
 868         return TRUE;
 869 }
 870
 871 static gboolean collect_manager_process_entry_list()
 872 {
 873         GList *work;
 874
 875         work = collection_manager_entry_list;
 876         while (work)
 877                 {
 878                 CollectManagerEntry *entry;
 879
 880                 entry = static_cast<CollectManagerEntry *>(work->data);
 881                 work = work->next;
 882                 if (collect_manager_process_entry(entry)) return TRUE;
 883                 }
 884
 885         return FALSE;
 886 }
 887
 888
 889
 890 static gboolean collect_manager_process_cb(gpointer)
 891 {
 892         if (collection_manager_action_list) collect_manager_refresh();
 893         collect_manager_process_actions(COLLECT_MANAGER_ACTIONS_PER_IDLE);
 894         if (collection_manager_action_list) return G_SOURCE_CONTINUE;
 895
 896         if (collect_manager_process_entry_list()) return G_SOURCE_CONTINUE;
 897
 898         DEBUG_1("collection manager is up to date");
 899         return G_SOURCE_REMOVE;
 900 }
 901
 902 static gboolean collect_manager_timer_cb(gpointer)
 903 {
 904         DEBUG_1("collection manager timer expired");
 905
 906         g_idle_add_full(G_PRIORITY_LOW, collect_manager_process_cb, nullptr, nullptr);
 907
 908         collection_manager_timer_id = 0;
 909         return FALSE;
 910 }
 911
 912 static void collect_manager_timer_push(gint stop)
 913 {
 914         if (collection_manager_timer_id)
 915                 {
 916                 if (!stop) return;
 917
 918                 g_source_remove(collection_manager_timer_id);
 919                 collection_manager_timer_id = 0;
 920                 }
 921
 922         if (!stop)
 923                 {
 924                 collection_manager_timer_id = g_timeout_add(COLLECT_MANAGER_FLUSH_DELAY,
 925                                                             collect_manager_timer_cb, nullptr);
 926                 DEBUG_1("collection manager timer started");
 927                 }
 928 }
 929
 930 static void collect_manager_add_action(CollectManagerAction *action)
 931 {
 932         if (!action) return;
 933
 934         /* we keep track of the list's tail to keep this a n(1) operation */
 935
 936         if (collection_manager_action_tail)
 937                 {
 938                 collection_manager_action_tail = g_list_append(collection_manager_action_tail, action);
 939                 collection_manager_action_tail = collection_manager_action_tail->next;
 940                 }
 941         else
 942                 {
 943                 collection_manager_action_list = g_list_append(collection_manager_action_list, action);
 944                 collection_manager_action_tail = collection_manager_action_list;
 945                 }
 946
 947         collect_manager_timer_push(FALSE);
 948 }
 949
 950 void collect_manager_moved(FileData *fd)
 951 {
 952         CollectManagerAction *action;
 953         const gchar *oldpath = fd->change->source;
 954         const gchar *newpath = fd->change->dest;
 955
 956         action = collect_manager_action_new(oldpath, newpath, COLLECTION_MANAGER_UPDATE);
 957         collect_manager_add_action(action);
 958 }
 959
 960 void collect_manager_add(FileData *fd, const gchar *collection)
 961 {
 962         CollectManagerAction *action;
 963         CollectWindow *cw;
 964
 965         if (!fd || !collection) return;
 966
 967         cw = collection_window_find_by_path(collection);
 968         if (cw)
 969                 {
 970                 if (collection_list_find_fd(cw->cd->list, fd) == nullptr)
 971                         {
 972                         collection_add(cw->cd, fd, FALSE);
 973                         }
 974                 return;
 975                 }
 976
 977         action = collect_manager_action_new(fd->path, collection, COLLECTION_MANAGER_ADD);
 978         collect_manager_add_action(action);
 979 }
 980
 981 void collect_manager_remove(FileData *fd, const gchar *collection)
 982 {
 983         CollectManagerAction *action;
 984         CollectWindow *cw;
 985
 986         if (!fd || !collection) return;
 987
 988         cw = collection_window_find_by_path(collection);
 989         if (cw)
 990                 {
 991                 while (collection_remove(cw->cd, fd));
 992                 return;
 993                 }
 994
 995         action = collect_manager_action_new(fd->path, collection, COLLECTION_MANAGER_REMOVE);
 996         collect_manager_add_action(action);
 997 }
 998
 999 void collect_manager_flush()
1000 {
1001         collect_manager_timer_push(TRUE);
1002
1003         DEBUG_1("collection manager flushing");
1004         while (collect_manager_process_cb(nullptr));
1005 }
1006
1007 void collect_manager_notify_cb(FileData *fd, NotifyType type, gpointer)
1008 {
1009         if (!(type & NOTIFY_CHANGE) || !fd->change) return;
1010
1011         DEBUG_1("Notify collect_manager: %s %04x", fd->path, type);
1012         switch (fd->change->type)
1013                 {
1014                 case FILEDATA_CHANGE_MOVE:
1015                         collect_manager_moved(fd);
1016                         break;
1017                 case FILEDATA_CHANGE_COPY:
1018                         break;
1019                 case FILEDATA_CHANGE_RENAME:
1020                         collect_manager_moved(fd);
1021                         break;
1022                 case FILEDATA_CHANGE_DELETE:
1023                 case FILEDATA_CHANGE_UNSPECIFIED:
1024                 case FILEDATA_CHANGE_WRITE_METADATA:
1025                         break;
1026                 }
1027 }
1028
1029 static gint collection_manager_sort_cb(gconstpointer a, gconstpointer b)
1030 {
1031         auto char_a = static_cast<const gchar *>(a);
1032         auto char_b = static_cast<const gchar *>(b);
1033
1034         return g_strcmp0(char_a, char_b);
1035 }
1036
1037 /**
1038  * @brief Creates sorted list of collections
1039  * @param[out] names_exc sorted list of collections names excluding extension
1040  * @param[out] names_inc sorted list of collections names including extension
1041  * @param[out] paths sorted list of collection paths
1042  *
1043  * Lists of type gchar.
1044  * Used lists must be freed with string_list_free()
1045  */
1046 void collect_manager_list(GList **names_exc, GList **names_inc, GList **paths)
1047 {
1048         FileData *dir_fd;
1049         GList *list = nullptr;
1050         gchar *name;
1051         FileData *fd;
1052         gchar *filename;
1053
1054         if (names_exc == nullptr && names_inc == nullptr && paths == nullptr)
1055                 {
1056                 return;
1057                 }
1058
1059         dir_fd = file_data_new_dir((get_collections_dir()));
1060
1061         filelist_read(dir_fd, &list, nullptr);
1062
1063         while (list)
1064                 {
1065                 fd = static_cast<FileData *>(list->data);
1066                 filename = g_strdup(filename_from_path(fd->path));
1067
1068                 if (file_extension_match(filename, GQ_COLLECTION_EXT))
1069                         {
1070                         name = remove_extension_from_path(filename);
1071
1072                         if (names_exc != nullptr)
1073                                 {
1074                                 *names_exc = g_list_insert_sorted(*names_exc, g_strdup(name),
1075                                                                                         collection_manager_sort_cb);
1076                                 *names_exc = g_list_first(*names_exc);
1077                                 }
1078                         if (names_inc != nullptr)
1079                                 {
1080                                 *names_inc = g_list_insert_sorted(*names_inc,filename,
1081                                                                                         collection_manager_sort_cb);
1082                                 *names_inc = g_list_first(*names_inc);
1083                                 }
1084                         if (paths != nullptr)
1085                                 {
1086                                 *paths = g_list_insert_sorted(*paths, g_strdup(fd->path),
1087                                                                                         collection_manager_sort_cb);
1088                                 *paths = g_list_first(*paths);
1089                                 }
1090                         g_free(name);
1091                         }
1092                 list = list->next;
1093                 g_free(filename);
1094                 }
1095
1096         filelist_free(list);
1097 }
1098 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */