src/main.cc

   1 /*
   2  * Copyright (C) 2006 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 <csignal>
  23 #include <sys/mman.h>
  24
  25 #ifdef G_OS_UNIX
  26 #include <pwd.h>
  27 #endif
  28 #include <clocale>
  29
  30 #include "main.h"
  31
  32 #include "cache.h"
  33 #include "collect.h"
  34 #include "collect-io.h"
  35 #include "filedata.h"
  36 #include "filefilter.h"
  37 #include "history-list.h"
  38 #include "image.h"
  39 #include "img-view.h"
  40 #include "layout-image.h"
  41 #include "layout-util.h"
  42 #include "misc.h"
  43 #include "rcfile.h"
  44 #include "remote.h"
  45 #include "secure-save.h"
  46 #include "ui-fileops.h"
  47 #include "ui-utildlg.h"
  48 #include "cache-maint.h"
  49 #include "thumb.h"
  50 #include "metadata.h"
  51 #include "exif.h"
  52 #include "histogram.h"
  53 #include "pixbuf-util.h"
  54 #include "glua.h"
  55 #include "whereami.h"
  56
  57 #ifdef HAVE_CLUTTER
  58 #include <clutter-gtk/clutter-gtk.h>
  59 #endif
  60
  61 #ifdef HAVE_EXECINFO_H
  62 #include <execinfo.h>
  63 #endif
  64
  65 gboolean thumb_format_changed = FALSE;
  66 static RemoteConnection *remote_connection = nullptr;
  67
  68 gchar *gq_prefix;
  69 gchar *gq_localedir;
  70 gchar *gq_helpdir;
  71 gchar *gq_htmldir;
  72 gchar *gq_appdir;
  73 gchar *gq_bindir;
  74 gchar *gq_executable_path;
  75 gchar *desktop_file_template;
  76 gchar *instance_identifier;
  77
  78 #if defined(SA_SIGINFO)
  79 void sig_handler_cb(int signo, siginfo_t *info, void *)
  80 {
  81         gchar hex_char[16];
  82         const gchar *signal_name = nullptr;
  83         gint i = 0;
  84         guint64 addr;
  85         guint64 char_index;
  86         ssize_t len;
  87 #ifdef HAVE_EXECINFO_H
  88         gint bt_size;
  89         void *bt[1024];
  90 #endif
  91         struct signals
  92                 {
  93                 gint sig_no;
  94                 const gchar *sig_name;
  95                 };
  96         struct signals signals_list[7];
  97
  98         signals_list[0].sig_no = SIGABRT;
  99         signals_list[0].sig_name = "Abort";
 100         signals_list[1].sig_no = SIGBUS;
 101         signals_list[1].sig_name = "Bus error";
 102         signals_list[2].sig_no = SIGFPE;
 103         signals_list[2].sig_name = "Floating-point exception";
 104         signals_list[3].sig_no = SIGILL;
 105         signals_list[3].sig_name = "Illegal instruction";
 106         signals_list[4].sig_no = SIGIOT;
 107         signals_list[4].sig_name = "IOT trap";
 108         signals_list[5].sig_no = SIGSEGV;
 109         signals_list[5].sig_name = "Invalid memory reference";
 110         signals_list[6].sig_no = -1;
 111         signals_list[6].sig_name = "END";
 112
 113         hex_char[0] = '0';
 114         hex_char[1] = '1';
 115         hex_char[2] = '2';
 116         hex_char[3] = '3';
 117         hex_char[4] = '4';
 118         hex_char[5] = '5';
 119         hex_char[6] = '6';
 120         hex_char[7] = '7';
 121         hex_char[8] = '8';
 122         hex_char[9] = '9';
 123         hex_char[10] = 'a';
 124         hex_char[11] = 'b';
 125         hex_char[12] = 'c';
 126         hex_char[13] = 'd';
 127         hex_char[14] = 'e';
 128         hex_char[15] = 'f';
 129
 130         signal_name = "Unknown signal";
 131         while (signals_list[i].sig_no != -1)
 132                 {
 133                 if (signo == signals_list[i].sig_no)
 134                         {
 135                         signal_name = signals_list[i].sig_name;
 136                         break;
 137                         }
 138                 i++;
 139                 }
 140
 141         len = write(STDERR_FILENO, "Geeqie fatal error\n", 19);
 142         len = write(STDERR_FILENO, "Signal: ", 8);
 143         len = write(STDERR_FILENO, signal_name, strlen(signal_name));
 144         len = write(STDERR_FILENO, "\n", 1);
 145
 146         len = write(STDERR_FILENO, "Code: ", 6);
 147         len = write(STDERR_FILENO,  (info->si_code == SEGV_MAPERR) ? "Address not mapped" : "Invalid permissions", strlen((info->si_code == SEGV_MAPERR) ? "Address not mapped" : "Invalid permissions"));
 148         len = write(STDERR_FILENO, "\n", 1);
 149
 150         len = write(STDERR_FILENO, "Address: ", 9);
 151
 152         if (info->si_addr == nullptr)
 153                 {
 154                 len = write(STDERR_FILENO, "0x0\n", 4);
 155                 }
 156         else
 157                 {
 158                 /* Assume the address is 64-bit */
 159                 len = write(STDERR_FILENO, "0x", 2);
 160                 addr = reinterpret_cast<guint64>(info->si_addr);
 161
 162                 for (i = 0; i < 16; i++)
 163                         {
 164                         char_index = addr & 0xf000000000000000;
 165                         char_index = char_index >> 60;
 166                         addr = addr << 4;
 167
 168                         len = write(STDERR_FILENO, &hex_char[char_index], 1);
 169                         }
 170                 len = write(STDERR_FILENO, "\n", 1);
 171                 }
 172
 173 #ifdef HAVE_EXECINFO_H
 174         bt_size = backtrace(bt, 1024);
 175         backtrace_symbols_fd(bt, bt_size, STDERR_FILENO);
 176 #endif
 177
 178         /* Avoid "not used" warning */
 179         len++;
 180
 181         exit(EXIT_FAILURE);
 182 }
 183 #else /* defined(SA_SIGINFO) */
 184 void sig_handler_cb(int)
 185 {
 186 #ifdef HAVE_EXECINFO_H
 187         gint bt_size;
 188         void *bt[1024];
 189 #endif
 190
 191         write(STDERR_FILENO, "Geeqie fatal error\n", 19);
 192         write(STDERR_FILENO, "Signal: Segmentation fault\n", 27);
 193
 194 #ifdef HAVE_EXECINFO_H
 195         bt_size = backtrace(bt, 1024);
 196         backtrace_symbols_fd(bt, bt_size, STDERR_FILENO);
 197 #endif
 198
 199         exit(EXIT_FAILURE);
 200 }
 201 #endif /* defined(SA_SIGINFO) */
 202
 203 /*
 204  *-----------------------------------------------------------------------------
 205  * keyboard functions
 206  *-----------------------------------------------------------------------------
 207  */
 208
 209 void keyboard_scroll_calc(gint *x, gint *y, GdkEventKey *event)
 210 {
 211         static gint delta = 0;
 212         static guint32 time_old = 0;
 213         static guint keyval_old = 0;
 214
 215         if (event->state & GDK_CONTROL_MASK)
 216                 {
 217                 if (*x < 0) *x = G_MININT / 2;
 218                 if (*x > 0) *x = G_MAXINT / 2;
 219                 if (*y < 0) *y = G_MININT / 2;
 220                 if (*y > 0) *y = G_MAXINT / 2;
 221
 222                 return;
 223                 }
 224
 225         if (options->progressive_key_scrolling)
 226                 {
 227                 guint32 time_diff;
 228
 229                 time_diff = event->time - time_old;
 230
 231                 /* key pressed within 125ms ? (1/8 second) */
 232                 if (time_diff > 125 || event->keyval != keyval_old) delta = 0;
 233
 234                 time_old = event->time;
 235                 keyval_old = event->keyval;
 236
 237                 delta += 2;
 238                 }
 239         else
 240                 {
 241                 delta = 8;
 242                 }
 243
 244         *x = *x * delta * options->keyboard_scroll_step;
 245         *y = *y * delta * options->keyboard_scroll_step;
 246 }
 247
 248
 249
 250 /*
 251  *-----------------------------------------------------------------------------
 252  * command line parser (private) hehe, who needs popt anyway?
 253  *-----------------------------------------------------------------------------
 254  */
 255
 256 static void parse_command_line_add_file(const gchar *file_path, gchar **path, gchar **file,
 257                                         GList **list, GList **collection_list)
 258 {
 259         gchar *path_parsed;
 260
 261         path_parsed = g_strdup(file_path);
 262         parse_out_relatives(path_parsed);
 263
 264         if (file_extension_match(path_parsed, GQ_COLLECTION_EXT))
 265                 {
 266                 *collection_list = g_list_append(*collection_list, path_parsed);
 267                 }
 268         else
 269                 {
 270                 if (!*path) *path = remove_level_from_path(path_parsed);
 271                 if (!*file) *file = g_strdup(path_parsed);
 272                 *list = g_list_prepend(*list, path_parsed);
 273                 }
 274 }
 275
 276 static void parse_command_line_add_dir(const gchar *dir, gchar **, gchar **, GList **)
 277 {
 278 #if 0
 279         /* This is broken because file filter is not initialized yet.
 280         */
 281         GList *files;
 282         gchar *path_parsed;
 283         FileData *dir_fd;
 284
 285         path_parsed = g_strdup(dir);
 286         parse_out_relatives(path_parsed);
 287         dir_fd = file_data_new_dir(path_parsed);
 288
 289
 290         if (filelist_read(dir_fd, &files, NULL))
 291                 {
 292                 GList *work;
 293
 294                 files = filelist_filter(files, FALSE);
 295                 files = filelist_sort_path(files);
 296
 297                 work = files;
 298                 while (work)
 299                         {
 300                         FileData *fd = static_cast<FileData *>(work->data);
 301                         if (!*path) *path = remove_level_from_path(fd->path);
 302                         if (!*file) *file = g_strdup(fd->path);
 303                         *list = g_list_prepend(*list, fd);
 304
 305                         work = work->next;
 306                         }
 307
 308                 g_list_free(files);
 309                 }
 310
 311         g_free(path_parsed);
 312         file_data_unref(dir_fd);
 313 #else
 314         DEBUG_1("multiple directories specified, ignoring: %s", dir);
 315 #endif
 316 }
 317
 318 static void parse_command_line_process_dir(const gchar *dir, gchar **path, gchar **file,
 319                                            GList **list, gchar **first_dir)
 320 {
 321
 322         if (!*list && !*first_dir)
 323                 {
 324                 *first_dir = g_strdup(dir);
 325                 }
 326         else
 327                 {
 328                 if (*first_dir)
 329                         {
 330                         parse_command_line_add_dir(*first_dir, path, file, list);
 331                         g_free(*first_dir);
 332                         *first_dir = nullptr;
 333                         }
 334                 parse_command_line_add_dir(dir, path, file, list);
 335                 }
 336 }
 337
 338 static void parse_command_line_process_file(const gchar *file_path, gchar **path, gchar **file,
 339                                             GList **list, GList **collection_list, gchar **first_dir)
 340 {
 341
 342         if (*first_dir)
 343                 {
 344                 parse_command_line_add_dir(*first_dir, path, file, list);
 345                 g_free(*first_dir);
 346                 *first_dir = nullptr;
 347                 }
 348         parse_command_line_add_file(file_path, path, file, list, collection_list);
 349 }
 350
 351 static void parse_command_line(gint argc, gchar *argv[])
 352 {
 353         GList *list = nullptr;
 354         GList *remote_list = nullptr;
 355         GList *remote_errors = nullptr;
 356         gboolean remote_do = FALSE;
 357         gchar *first_dir = nullptr;
 358         gchar *app_lock;
 359         gchar *pwd;
 360         gchar *current_dir;
 361         gchar *geometry = nullptr;
 362         GtkWidget *dialog_warning;
 363         GString *command_line_errors = g_string_new(nullptr);
 364
 365         command_line = g_new0(CommandLine, 1);
 366
 367         command_line->argc = argc;
 368         command_line->argv = argv;
 369         command_line->regexp = nullptr;
 370
 371         if (argc > 1)
 372                 {
 373                 gint i;
 374                 gchar *base_dir = get_current_dir();
 375                 i = 1;
 376                 while (i < argc)
 377                         {
 378                         gchar *cmd_line = path_to_utf8(argv[i]);
 379                         gchar *cmd_all = g_build_filename(base_dir, cmd_line, NULL);
 380
 381                         if (cmd_line[0] == G_DIR_SEPARATOR && isdir(cmd_line))
 382                                 {
 383                                 parse_command_line_process_dir(cmd_line, &command_line->path, &command_line->file, &list, &first_dir);
 384                                 }
 385                         else if (isdir(cmd_all))
 386                                 {
 387                                 parse_command_line_process_dir(cmd_all, &command_line->path, &command_line->file, &list, &first_dir);
 388                                 }
 389                         else if (cmd_line[0] == G_DIR_SEPARATOR && isfile(cmd_line))
 390                                 {
 391                                 parse_command_line_process_file(cmd_line, &command_line->path, &command_line->file,
 392                                                                 &list, &command_line->collection_list, &first_dir);
 393                                 }
 394                         else if (isfile(cmd_all))
 395                                 {
 396                                 parse_command_line_process_file(cmd_all, &command_line->path, &command_line->file,
 397                                                                 &list, &command_line->collection_list, &first_dir);
 398                                 }
 399                         else if (download_web_file(cmd_line, FALSE, nullptr))
 400                                 {
 401                                 }
 402                         else if (is_collection(cmd_line))
 403                                 {
 404                                 gchar *path = nullptr;
 405
 406                                 path = collection_path(cmd_line);
 407                                 parse_command_line_process_file(path, &command_line->path, &command_line->file,
 408                                                                 &list, &command_line->collection_list, &first_dir);
 409                                 g_free(path);
 410                                 }
 411                         else if (strncmp(cmd_line, "--debug", 7) == 0 && (cmd_line[7] == '\0' || cmd_line[7] == '='))
 412                                 {
 413                                 /* do nothing but do not produce warnings */
 414                                 }
 415                         else if (strncmp(cmd_line, "--disable-clutter", 17) == 0 && (cmd_line[17] == '\0'))
 416                                 {
 417                                 /* do nothing but do not produce warnings */
 418                                 }
 419                         else if (strcmp(cmd_line, "+t") == 0 ||
 420                                  strcmp(cmd_line, "--with-tools") == 0)
 421                                 {
 422                                 command_line->tools_show = TRUE;
 423
 424                                 remote_list = g_list_append(remote_list, g_strdup("+t"));
 425                                 }
 426                         else if (strcmp(cmd_line, "-t") == 0 ||
 427                                  strcmp(cmd_line, "--without-tools") == 0)
 428                                 {
 429                                 command_line->tools_hide = TRUE;
 430
 431                                 remote_list = g_list_append(remote_list, g_strdup("-t"));
 432                                 }
 433                         else if (strcmp(cmd_line, "-f") == 0 ||
 434                                  strcmp(cmd_line, "--fullscreen") == 0)
 435                                 {
 436                                 command_line->startup_full_screen = TRUE;
 437                                 }
 438                         else if (strcmp(cmd_line, "-s") == 0 ||
 439                                  strcmp(cmd_line, "--slideshow") == 0)
 440                                 {
 441                                 command_line->startup_in_slideshow = TRUE;
 442                                 }
 443                         else if (strcmp(cmd_line, "-l") == 0 ||
 444                                  strcmp(cmd_line, "--list") == 0)
 445                                 {
 446                                 command_line->startup_command_line_collection = TRUE;
 447                                 }
 448                         else if (strncmp(cmd_line, "--geometry=", 11) == 0)
 449                                 {
 450                                 if (!command_line->geometry) command_line->geometry = g_strdup(cmd_line + 11);
 451                                 }
 452                         else if (strcmp(cmd_line, "-r") == 0 ||
 453                                  strcmp(cmd_line, "--remote") == 0)
 454                                 {
 455                                 if (!remote_do)
 456                                         {
 457                                         remote_do = TRUE;
 458                                         remote_list = remote_build_list(remote_list, argc - i, &argv[i], &remote_errors);
 459                                         }
 460                                 }
 461                         else if ((strcmp(cmd_line, "+w") == 0) ||
 462                                                 strcmp(cmd_line, "--show-log-window") == 0)
 463                                 {
 464                                 command_line->log_window_show = TRUE;
 465                                 }
 466                         else if (strncmp(cmd_line, "-o:", 3) == 0)
 467                                 {
 468                                 command_line->log_file = g_strdup(cmd_line + 3);
 469                                 }
 470                         else if (strncmp(cmd_line, "--log-file:", 11) == 0)
 471                                 {
 472                                 command_line->log_file = g_strdup(cmd_line + 11);
 473                                 }
 474                         else if (strncmp(cmd_line, "-g:", 3) == 0)
 475                                 {
 476                                 set_regexp(g_strdup(cmd_line+3));
 477                                 }
 478                         else if (strncmp(cmd_line, "-grep:", 6) == 0)
 479                                 {
 480                                 set_regexp(g_strdup(cmd_line+3));
 481                                 }
 482                         else if (strncmp(cmd_line, "-n", 2) == 0)
 483                                 {
 484                                 command_line->new_instance = TRUE;
 485                                 }
 486                         else if (strncmp(cmd_line, "--new-instance", 14) == 0)
 487                                 {
 488                                 command_line->new_instance = TRUE;
 489                                 }
 490                         else if (strcmp(cmd_line, "-rh") == 0 ||
 491                                  strcmp(cmd_line, "--remote-help") == 0)
 492                                 {
 493                                 remote_help();
 494                                 exit(0);
 495                                 }
 496                         else if (strcmp(cmd_line, "--blank") == 0)
 497                                 {
 498                                 command_line->startup_blank = TRUE;
 499                                 }
 500                         else if (strcmp(cmd_line, "-v") == 0 ||
 501                                  strcmp(cmd_line, "--version") == 0)
 502                                 {
 503                                 printf_term(FALSE, "%s %s GTK%d\n", GQ_APPNAME, VERSION, gtk_major_version);
 504                                 exit(0);
 505                                 }
 506                         else if (strcmp(cmd_line, "-h") == 0 ||
 507                                  strcmp(cmd_line, "--help") == 0)
 508                                 {
 509                                 printf_term(FALSE, "%s %s\n", GQ_APPNAME, VERSION);
 510                                 printf_term(FALSE, _("Usage: %s [options] [path]\n\n"), GQ_APPNAME_LC);
 511                                 print_term(FALSE, _("Valid options:\n"));
 512                                 print_term(FALSE, _("      --blank                      start with blank file list\n"));
 513                                 print_term(FALSE, _("      --cache-maintenance <path>   run cache maintenance in non-GUI mode\n"));
 514                                 print_term(FALSE, _("      --disable-clutter            disable use of Clutter library (i.e. GPU accel.)\n"));
 515                                 print_term(FALSE, _("  -f, --fullscreen                 start in full screen mode\n"));
 516                                 print_term(FALSE, _("      --geometry=WxH+XOFF+YOFF     set main window location\n"));
 517                                 print_term(FALSE, _("  -h, --help                       show this message\n"));
 518                                 print_term(FALSE, _("  -l, --list [files] [collections] open collection window for command line\n"));
 519                                 print_term(FALSE, _("  -n, --new-instance               open a new instance of Geeqie *\n"));
 520                                 print_term(FALSE, _("  -o:, --log-file:<file>           save log data to file\n"));
 521                                 print_term(FALSE, _("  -r, --remote                     send following commands to open window\n"));
 522                                 print_term(FALSE, _("  -rh, --remote-help               print remote command list\n"));
 523                                 print_term(FALSE, _("  -s, --slideshow                  start in slideshow mode\n"));
 524                                 print_term(FALSE, _("  +t, --with-tools                 force show of tools\n"));
 525                                 print_term(FALSE, _("  -t, --without-tools              force hide of tools\n"));
 526                                 print_term(FALSE, _("  -v, --version                    print version info\n"));
 527                                 print_term(FALSE, _("  +w, --show-log-window            show log window\n"));
 528 #ifdef DEBUG
 529                                 print_term(FALSE, _("      --debug[=level]              turn on debug output\n"));
 530                                 print_term(FALSE, _("  -g:, --grep:<regexp>             filter debug output\n"));
 531 #endif
 532
 533                                 print_term(FALSE, "\n");
 534                                 print_term(FALSE, "* Normally a single set of configuration files is used for all instances.\nHowever, the environment variables XDG_CONFIG_HOME, XDG_CACHE_HOME, XDG_DATA_HOME\ncan be used to modify this behavior on an individual basis e.g.\n\nXDG_CONFIG_HOME=/tmp/a XDG_CACHE_HOME=/tmp/b geeqie\n\n");
 535
 536                                 remote_help();
 537
 538
 539                                 exit(0);
 540                                 }
 541                         else if (!remote_do)
 542                                 {
 543                                 command_line_errors = g_string_append(command_line_errors, cmd_line);
 544                                 command_line_errors = g_string_append(command_line_errors, "\n");
 545                                 }
 546
 547                         g_free(cmd_all);
 548                         g_free(cmd_line);
 549                         i++;
 550                         }
 551
 552                 if (command_line_errors->len > 0)
 553                         {
 554                         dialog_warning = gtk_message_dialog_new(nullptr, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", "Invalid parameter(s):");
 555                         gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog_warning), "%s", command_line_errors->str);
 556                         gtk_window_set_title(GTK_WINDOW(dialog_warning), GQ_APPNAME);
 557                         gq_gtk_window_set_keep_above(GTK_WINDOW(dialog_warning), TRUE);
 558                         gtk_dialog_run(GTK_DIALOG(dialog_warning));
 559                         g_object_unref(dialog_warning);
 560                         g_string_free(command_line_errors, TRUE);
 561
 562                         exit(EXIT_FAILURE);
 563                         }
 564
 565                 g_free(base_dir);
 566                 parse_out_relatives(command_line->path);
 567                 parse_out_relatives(command_line->file);
 568                 }
 569
 570         list = g_list_reverse(list);
 571
 572         if (!command_line->path && first_dir)
 573                 {
 574                 command_line->path = first_dir;
 575                 first_dir = nullptr;
 576
 577                 parse_out_relatives(command_line->path);
 578                 }
 579         g_free(first_dir);
 580
 581         if (!command_line->new_instance)
 582                 {
 583                 /* If Geeqie is already running, prevent a second instance
 584                  * from being started. Open a new window instead.
 585                  */
 586                 app_lock = g_build_filename(get_rc_dir(), ".command", NULL);
 587                 if (remote_server_exists(app_lock) && !remote_do)
 588                         {
 589                         remote_do = TRUE;
 590                         if (command_line->geometry)
 591                                 {
 592                                 geometry = g_strdup_printf("--geometry=%s", command_line->geometry);
 593                                 remote_list = g_list_prepend(remote_list, geometry);
 594                                 }
 595                         remote_list = g_list_prepend(remote_list, g_strdup("--new-window"));
 596                         }
 597                 g_free(app_lock);
 598                 }
 599
 600         if (remote_do)
 601                 {
 602                 if (remote_errors)
 603                         {
 604                         GList *work = remote_errors;
 605
 606                         while (work)
 607                                 {
 608                                 auto opt = static_cast<gchar *>(work->data);
 609
 610                                 command_line_errors = g_string_append(command_line_errors, opt);
 611                                 command_line_errors = g_string_append(command_line_errors, "\n");
 612                                 work = work->next;
 613                                 }
 614
 615                         dialog_warning = gtk_message_dialog_new(nullptr, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", "Invalid parameter(s):");
 616                         gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog_warning), "%s", command_line_errors->str);
 617                         gtk_window_set_title(GTK_WINDOW(dialog_warning), GQ_APPNAME);
 618                         gq_gtk_window_set_keep_above(GTK_WINDOW(dialog_warning), TRUE);
 619                         gtk_dialog_run(GTK_DIALOG(dialog_warning));
 620                         g_object_unref(dialog_warning);
 621                         g_string_free(command_line_errors, TRUE);
 622
 623                         exit(EXIT_FAILURE);
 624                         }
 625
 626                 /* prepend the current dir the remote command was made from,
 627                  * for use by any remote command that needs it
 628                  */
 629                 current_dir = g_get_current_dir();
 630                 pwd = g_strconcat("--PWD:", current_dir, NULL);
 631                 remote_list = g_list_prepend(remote_list, pwd);
 632
 633                 remote_control(argv[0], remote_list, command_line->path, list, command_line->collection_list);
 634                 /* There is no return to this point
 635                  */
 636                 g_free(pwd);
 637                 g_free(current_dir);
 638                 }
 639         g_free(geometry);
 640         g_list_free(remote_list);
 641
 642         if (list && list->next)
 643                 {
 644                 command_line->cmd_list = list;
 645                 }
 646         else
 647                 {
 648                 g_list_free_full(list, g_free);
 649                 command_line->cmd_list = nullptr;
 650                 }
 651
 652         if (command_line->startup_blank)
 653                 {
 654                 g_free(command_line->path);
 655                 command_line->path = nullptr;
 656                 g_free(command_line->file);
 657                 command_line->file = nullptr;
 658                 filelist_free(command_line->cmd_list);
 659                 command_line->cmd_list = nullptr;
 660                 g_list_free_full(command_line->collection_list, g_free);
 661                 command_line->collection_list = nullptr;
 662                 }
 663 }
 664
 665 static void parse_command_line_for_debug_option(gint argc, gchar *argv[])
 666 {
 667 #ifdef DEBUG
 668         const gchar *debug_option = "--debug";
 669         gint len = strlen(debug_option);
 670
 671         if (argc > 1)
 672                 {
 673                 gint i;
 674
 675                 for (i = 1; i < argc; i++)
 676                         {
 677                         const gchar *cmd_line = argv[i];
 678                         if (strncmp(cmd_line, debug_option, len) == 0)
 679                                 {
 680                                 gint cmd_line_len = strlen(cmd_line);
 681
 682                                 /* we now increment the debug state for verbosity */
 683                                 if (cmd_line_len == len)
 684                                         debug_level_add(1);
 685                                 else if (cmd_line[len] == '=' && g_ascii_isdigit(cmd_line[len+1]))
 686                                         {
 687                                         gint n = atoi(cmd_line + len + 1);
 688                                         if (n < 0) n = 1;
 689                                         debug_level_add(n);
 690                                         }
 691                                 }
 692                         }
 693                 }
 694
 695         DEBUG_1("debugging output enabled (level %d)", get_debug_level());
 696 #endif
 697 }
 698
 699 #ifdef HAVE_CLUTTER
 700 static gboolean parse_command_line_for_clutter_option(gint argc, gchar *argv[])
 701 {
 702         const gchar *clutter_option = "--disable-clutter";
 703         gint len = strlen(clutter_option);
 704         gboolean ret = FALSE;
 705
 706         if (argc > 1)
 707                 {
 708                 gint i;
 709
 710                 for (i = 1; i < argc; i++)
 711                         {
 712                         const gchar *cmd_line = argv[i];
 713                         if (strncmp(cmd_line, clutter_option, len) == 0)
 714                                 {
 715                                 ret = TRUE;
 716                                 }
 717                         }
 718                 }
 719
 720         return ret;
 721 }
 722 #endif
 723
 724 static gboolean parse_command_line_for_cache_maintenance_option(gint argc, gchar *argv[])
 725 {
 726         const gchar *cache_maintenance_option = "--cache-maintenance";
 727         gint len = strlen(cache_maintenance_option);
 728         gboolean ret = FALSE;
 729
 730         if (argc >= 2)
 731                 {
 732                 const gchar *cmd_line = argv[1];
 733                 if (strncmp(cmd_line, cache_maintenance_option, len) == 0)
 734                         {
 735                         ret = TRUE;
 736                         }
 737                 }
 738
 739         return ret;
 740 }
 741
 742 static void process_command_line_for_cache_maintenance_option(gint argc, gchar *argv[])
 743 {
 744         gchar *rc_path;
 745         gchar *folder_path = nullptr;
 746         gsize size;
 747         gsize i = 0;
 748         gchar *buf_config_file;
 749         gint diff_count;
 750
 751         if (argc >= 3)
 752                 {
 753                 folder_path = expand_tilde(argv[2]);
 754
 755                 if (isdir(folder_path))
 756                         {
 757                         rc_path = g_build_filename(get_rc_dir(), RC_FILE_NAME, NULL);
 758
 759                         if (isfile(rc_path))
 760                                 {
 761                                 if (g_file_get_contents(rc_path, &buf_config_file, &size, nullptr))
 762                                         {
 763                                         while (i < size)
 764                                                 {
 765                                                 diff_count = strncmp("</global>", &buf_config_file[i], 9);
 766                                                 if (diff_count == 0)
 767                                                         {
 768                                                         break;
 769                                                         }
 770                                                 i++;
 771                                                 }
 772                                         /* Load only the <global> section */
 773                                         load_config_from_buf(buf_config_file, i + 9, FALSE);
 774
 775                                         if (options->thumbnails.enable_caching)
 776                                                 {
 777                                                 cache_maintenance(folder_path);
 778                                                 }
 779                                         else
 780                                                 {
 781                                                 print_term(TRUE, "Caching not enabled\n");
 782                                                 exit(EXIT_FAILURE);
 783                                                 }
 784                                         g_free(buf_config_file);
 785                                         }
 786                                 else
 787                                         {
 788                                         print_term(TRUE, g_strconcat(_("Cannot load "), rc_path, "\n", NULL));
 789                                         exit(EXIT_FAILURE);
 790                                         }
 791                                 }
 792                         else
 793                                 {
 794                                 print_term(TRUE, g_strconcat(_("Configuration file path "), rc_path, _(" is not a file\n"), NULL));
 795                                 exit(EXIT_FAILURE);
 796                                 }
 797                         g_free(rc_path);
 798                         }
 799                 else
 800                         {
 801                         print_term(TRUE, g_strconcat(argv[2], _(" is not a folder\n"), NULL));
 802                         exit(EXIT_FAILURE);
 803                         }
 804                 g_free(folder_path);
 805                 }
 806         else
 807                 {
 808                 print_term(TRUE, _("No path parameter given\n"));
 809                 exit(EXIT_FAILURE);
 810                 }
 811 }
 812
 813 /*
 814  *-----------------------------------------------------------------------------
 815  * startup, init, and exit
 816  *-----------------------------------------------------------------------------
 817  */
 818
 819 #define RC_HISTORY_NAME "history"
 820 #define RC_MARKS_NAME "marks"
 821
 822 static void setup_env_path()
 823 {
 824         const gchar *old_path = g_getenv("PATH");
 825         gchar *path = g_strconcat(gq_bindir, ":", old_path, NULL);
 826         g_setenv("PATH", path, TRUE);
 827         g_free(path);
 828 }
 829
 830 static void keys_load()
 831 {
 832         gchar *path;
 833
 834         path = g_build_filename(get_rc_dir(), RC_HISTORY_NAME, NULL);
 835         history_list_load(path);
 836         g_free(path);
 837 }
 838
 839 static void keys_save()
 840 {
 841         gchar *path;
 842
 843         path = g_build_filename(get_rc_dir(), RC_HISTORY_NAME, NULL);
 844         history_list_save(path);
 845         g_free(path);
 846 }
 847
 848 static void marks_load()
 849 {
 850         gchar *path;
 851
 852         path = g_build_filename(get_rc_dir(), RC_MARKS_NAME, NULL);
 853         marks_list_load(path);
 854         g_free(path);
 855 }
 856
 857 static void marks_save(gboolean save)
 858 {
 859         gchar *path;
 860
 861         path = g_build_filename(get_rc_dir(), RC_MARKS_NAME, NULL);
 862         marks_list_save(path, save);
 863         g_free(path);
 864 }
 865
 866 static void mkdir_if_not_exists(const gchar *path)
 867 {
 868         if (isdir(path)) return;
 869
 870         log_printf(_("Creating %s dir:%s\n"), GQ_APPNAME, path);
 871
 872         if (!recursive_mkdir_if_not_exists(path, 0755))
 873                 {
 874                 log_printf(_("Could not create dir:%s\n"), path);
 875                 }
 876 }
 877
 878
 879 /* We add to duplicate and modify  gtk_accel_map_print() and gtk_accel_map_save()
 880  * to improve the reliability in special cases (especially when disk is full)
 881  * These functions are now using secure saving stuff.
 882  */
 883 static void gq_accel_map_print(
 884                     gpointer    data,
 885                     const gchar *accel_path,
 886                     guint       accel_key,
 887                     GdkModifierType accel_mods,
 888                     gboolean    changed)
 889 {
 890         GString *gstring = g_string_new(changed ? nullptr : "; ");
 891         auto ssi = static_cast<SecureSaveInfo *>(data);
 892         gchar *tmp, *name;
 893
 894         g_string_append(gstring, "(gtk_accel_path \"");
 895
 896         tmp = g_strescape(accel_path, nullptr);
 897         g_string_append(gstring, tmp);
 898         g_free(tmp);
 899
 900         g_string_append(gstring, "\" \"");
 901
 902         name = gtk_accelerator_name(accel_key, accel_mods);
 903         tmp = g_strescape(name, nullptr);
 904         g_free(name);
 905         g_string_append(gstring, tmp);
 906         g_free(tmp);
 907
 908         g_string_append(gstring, "\")\n");
 909
 910         secure_fwrite(gstring->str, sizeof(*gstring->str), gstring->len, ssi);
 911
 912         g_string_free(gstring, TRUE);
 913 }
 914
 915 static gboolean gq_accel_map_save(const gchar *path)
 916 {
 917         gchar *pathl;
 918         SecureSaveInfo *ssi;
 919         GString *gstring;
 920
 921         pathl = path_from_utf8(path);
 922         ssi = secure_open(pathl);
 923         g_free(pathl);
 924         if (!ssi)
 925                 {
 926                 log_printf(_("error saving file: %s\n"), path);
 927                 return FALSE;
 928                 }
 929
 930         gstring = g_string_new("; ");
 931         if (g_get_prgname())
 932                 g_string_append(gstring, g_get_prgname());
 933         g_string_append(gstring, " GtkAccelMap rc-file         -*- scheme -*-\n");
 934         g_string_append(gstring, "; this file is an automated accelerator map dump\n");
 935         g_string_append(gstring, ";\n");
 936
 937         secure_fwrite(gstring->str, sizeof(*gstring->str), gstring->len, ssi);
 938
 939         g_string_free(gstring, TRUE);
 940
 941         gtk_accel_map_foreach(ssi, gq_accel_map_print);
 942
 943         if (secure_close(ssi))
 944                 {
 945                 log_printf(_("error saving file: %s\nerror: %s\n"), path,
 946                            secsave_strerror(secsave_errno));
 947                 return FALSE;
 948                 }
 949
 950         return TRUE;
 951 }
 952
 953 static gchar *accep_map_filename()
 954 {
 955         return g_build_filename(get_rc_dir(), "accels", NULL);
 956 }
 957
 958 static void accel_map_save()
 959 {
 960         gchar *path;
 961
 962         path = accep_map_filename();
 963         gq_accel_map_save(path);
 964         g_free(path);
 965 }
 966
 967 static void accel_map_load()
 968 {
 969         gchar *path;
 970         gchar *pathl;
 971
 972         path = accep_map_filename();
 973         pathl = path_from_utf8(path);
 974         gtk_accel_map_load(pathl);
 975         g_free(pathl);
 976         g_free(path);
 977 }
 978
 979 static void gtkrc_load()
 980 {
 981         gchar *path;
 982         gchar *pathl;
 983
 984         /* If a gtkrc file exists in the rc directory, add it to the
 985          * list of files to be parsed at the end of gtk_init() */
 986         path = g_build_filename(get_rc_dir(), "gtkrc", NULL);
 987         pathl = path_from_utf8(path);
 988         if (access(pathl, R_OK) == 0)
 989                 gtk_rc_add_default_file(pathl);
 990         g_free(pathl);
 991         g_free(path);
 992 }
 993
 994 static void exit_program_final()
 995 {
 996         LayoutWindow *lw = nullptr;
 997         GList *list;
 998         LayoutWindow *tmp_lw;
 999         gchar *archive_dir;
1000         GFile *archive_file;
1001
1002          /* make sure that external editors are loaded, we would save incomplete configuration otherwise */
1003         layout_editors_reload_finish();
1004
1005         remote_close(remote_connection);
1006
1007         collect_manager_flush();
1008
1009         /* Save the named windows */
1010         if (layout_window_list && layout_window_list->next)
1011                 {
1012                 list = layout_window_list;
1013                 while (list)
1014                         {
1015                         tmp_lw = static_cast<LayoutWindow *>(list->data);
1016                         if (!g_str_has_prefix(tmp_lw->options.id, "lw"))
1017                                 {
1018                                 save_layout(static_cast<LayoutWindow *>(list->data));
1019                                 }
1020                         list = list->next;
1021                         }
1022                 }
1023
1024         save_options(options);
1025         keys_save();
1026         accel_map_save();
1027
1028         if (layout_valid(&lw))
1029                 {
1030                 layout_free(lw);
1031                 }
1032
1033         /* Delete any files/folders in /tmp that have been created by the open archive function */
1034         archive_dir = g_build_filename(g_get_tmp_dir(), GQ_ARCHIVE_DIR, instance_identifier, NULL);
1035         if (isdir(archive_dir))
1036                 {
1037                 archive_file = g_file_new_for_path(archive_dir);
1038                 rmdir_recursive(archive_file, nullptr, nullptr);
1039                 g_free(archive_dir);
1040                 g_object_unref(archive_file);
1041                 }
1042
1043         /* If there are still sub-dirs created by another instance, this will fail
1044          * but that does not matter */
1045         archive_dir = g_build_filename(g_get_tmp_dir(), GQ_ARCHIVE_DIR, NULL);
1046         if (isdir(archive_dir))
1047                 {
1048                 archive_file = g_file_new_for_path(archive_dir);
1049                 g_file_delete(archive_file, nullptr, nullptr);
1050                 g_free(archive_dir);
1051                 g_object_unref(archive_file);
1052                 }
1053
1054         secure_close(command_line->ssi);
1055
1056         gtk_main_quit();
1057 }
1058
1059 static GenericDialog *exit_dialog = nullptr;
1060
1061 static void exit_confirm_cancel_cb(GenericDialog *gd, gpointer)
1062 {
1063         exit_dialog = nullptr;
1064         generic_dialog_close(gd);
1065 }
1066
1067 static void exit_confirm_exit_cb(GenericDialog *gd, gpointer)
1068 {
1069         exit_dialog = nullptr;
1070         generic_dialog_close(gd);
1071         exit_program_final();
1072 }
1073
1074 static gint exit_confirm_dlg()
1075 {
1076         GtkWidget *parent;
1077         LayoutWindow *lw;
1078         gchar *msg;
1079         GString *message;
1080
1081         if (exit_dialog)
1082                 {
1083                 gtk_window_present(GTK_WINDOW(exit_dialog->dialog));
1084                 return TRUE;
1085                 }
1086
1087         if (!collection_window_modified_exists() && (layout_window_count() == 1)) return FALSE;
1088
1089         parent = nullptr;
1090         lw = nullptr;
1091         if (layout_valid(&lw))
1092                 {
1093                 parent = lw->window;
1094                 }
1095
1096         msg = g_strdup_printf("%s - %s", GQ_APPNAME, _("exit"));
1097         exit_dialog = generic_dialog_new(msg,
1098                                 "exit", parent, FALSE,
1099                                 exit_confirm_cancel_cb, nullptr);
1100         g_free(msg);
1101         msg = g_strdup_printf(_("Quit %s"), GQ_APPNAME);
1102
1103         message = g_string_new(nullptr);
1104
1105         if (collection_window_modified_exists())
1106                 {
1107                 message = g_string_append(message, _("Collections have been modified.\n"));
1108                 }
1109
1110         if (layout_window_count() > 1)
1111                 {
1112                 g_string_append_printf(message, _("%d windows are open.\n\n"), layout_window_count());
1113                 }
1114
1115         message = g_string_append(message, _("Quit anyway?"));
1116
1117         generic_dialog_add_message(exit_dialog, GQ_ICON_DIALOG_QUESTION, msg, message->str, TRUE);
1118         g_free(msg);
1119         generic_dialog_add_button(exit_dialog, GQ_ICON_QUIT, _("Quit"), exit_confirm_exit_cb, TRUE);
1120
1121         gtk_widget_show(exit_dialog->dialog);
1122
1123         g_string_free(message, TRUE);
1124
1125         return TRUE;
1126 }
1127
1128 static void exit_program_write_metadata_cb(gint success, const gchar *, gpointer)
1129 {
1130         if (success) exit_program();
1131 }
1132
1133 void exit_program()
1134 {
1135         layout_image_full_screen_stop(nullptr);
1136
1137         if (metadata_write_queue_confirm(FALSE, exit_program_write_metadata_cb, nullptr)) return;
1138
1139         options->marks_save ? marks_save(TRUE) : marks_save(FALSE);
1140
1141         if (exit_confirm_dlg()) return;
1142
1143         exit_program_final();
1144 }
1145
1146 /* This code attempts to handle situation when a file mmaped by image_loader
1147  * or by exif loader is truncated by some other process.
1148  * This code is incorrect according to POSIX, because:
1149  *
1150  *   mmap is not async-signal-safe and thus may not be called from a signal handler
1151  *
1152  *   mmap must be called with a valid file descriptor.  POSIX requires that
1153  *   a fildes argument of -1 must cause mmap to return EBADF.
1154  *
1155  * See https://github.com/BestImageViewer/geeqie/issues/1052 for discussion of
1156  * an alternative approach.
1157  */
1158 /** @FIXME this probably needs some better ifdefs. Please report any compilation problems */
1159 /** @FIXME This section needs revising */
1160
1161 #pragma GCC diagnostic push
1162 #pragma GCC diagnostic ignored "-Wunused-function"
1163 #if defined(SIGBUS) && defined(SA_SIGINFO)
1164 static void sigbus_handler_cb_unused(int, siginfo_t *info, void *)
1165 {
1166         /*
1167          * @FIXME Design and implement a POSIX-acceptable approach,
1168          * after first documenting the sitations where SIGBUS occurs.
1169          * See https://github.com/BestImageViewer/geeqie/issues/1052 for discussion
1170          */
1171
1172         DEBUG_1("SIGBUS %p NOT HANDLED", info->si_addr);
1173         exit(EXIT_FAILURE);
1174 }
1175 #endif
1176
1177 static void setup_sigbus_handler_unused()
1178 {
1179 #if defined(SIGBUS) && defined(SA_SIGINFO)
1180         struct sigaction sigbus_action;
1181         sigfillset(&sigbus_action.sa_mask);
1182         sigbus_action.sa_sigaction = sigbus_handler_cb_unused;
1183         sigbus_action.sa_flags = SA_SIGINFO;
1184
1185         sigaction(SIGBUS, &sigbus_action, nullptr);
1186 #endif
1187 }
1188 #pragma GCC diagnostic pop
1189
1190 #ifndef HAVE_DEVELOPER
1191 static void setup_sig_handler()
1192 {
1193         struct sigaction sigsegv_action;
1194         sigfillset(&sigsegv_action.sa_mask);
1195         sigsegv_action.sa_sigaction = sig_handler_cb;
1196         sigsegv_action.sa_flags = SA_SIGINFO;
1197
1198         sigaction(SIGABRT, &sigsegv_action, nullptr);
1199         sigaction(SIGBUS, &sigsegv_action, nullptr);
1200         sigaction(SIGFPE, &sigsegv_action, nullptr);
1201         sigaction(SIGILL, &sigsegv_action, nullptr);
1202         sigaction(SIGIOT, &sigsegv_action, nullptr);
1203         sigaction(SIGSEGV, &sigsegv_action, nullptr);
1204 }
1205 #endif
1206
1207 static void set_theme_bg_color()
1208 {
1209         GdkRGBA bg_color;
1210         GdkRGBA theme_color;
1211         GtkStyleContext *style_context;
1212         GList *work;
1213         LayoutWindow *lw;
1214
1215         if (!options->image.use_custom_border_color)
1216                 {
1217                 work = layout_window_list;
1218                 lw = static_cast<LayoutWindow *>(work->data);
1219
1220                 style_context = gtk_widget_get_style_context(lw->window);
1221                 gtk_style_context_get_background_color(style_context, GTK_STATE_FLAG_NORMAL, &bg_color);
1222
1223                 theme_color.red = bg_color.red  ;
1224                 theme_color.green = bg_color.green  ;
1225                 theme_color.blue = bg_color.blue ;
1226
1227                 while (work)
1228                         {
1229                         lw = static_cast<LayoutWindow *>(work->data);
1230                         image_background_set_color(lw->image, &theme_color);
1231                         work = work->next;
1232                         }
1233                 }
1234
1235         view_window_colors_update();
1236 }
1237
1238 static gboolean theme_change_cb(GObject *, GParamSpec *, gpointer)
1239 {
1240         set_theme_bg_color();
1241
1242         return FALSE;
1243 }
1244
1245 /**
1246  * @brief Set up the application paths
1247  *
1248  * This function is required for use of AppImages. AppImages are
1249  * relocatable, and therefore cannot use fixed paths to various components.
1250  * These paths were originally #defines created during compilation.
1251  * They are now variables, all defined relative to one level above the
1252  * directory that the executable is run from.
1253  */
1254 static void create_application_paths()
1255 {
1256         gchar *dirname;
1257         gint length;
1258         gchar *path;
1259
1260         length = wai_getExecutablePath(nullptr, 0, nullptr);
1261         path = static_cast<gchar *>(malloc(length + 1));
1262         wai_getExecutablePath(path, length, nullptr);
1263         path[length] = '\0';
1264
1265         gq_executable_path = g_strdup(path);
1266         dirname = g_path_get_dirname(gq_executable_path);
1267         gq_prefix = g_path_get_dirname(dirname);
1268
1269         gq_localedir = g_build_filename(gq_prefix, GQ_LOCALEDIR, NULL);
1270         gq_helpdir = g_build_filename(gq_prefix, GQ_HELPDIR, NULL);
1271         gq_htmldir = g_build_filename(gq_prefix, GQ_HTMLDIR, NULL);
1272         gq_appdir = g_build_filename(gq_prefix, GQ_APPDIR, NULL);
1273         gq_bindir = g_build_filename(gq_prefix, GQ_BINDIR, NULL);
1274         desktop_file_template = g_build_filename(gq_appdir, "org.geeqie.template.desktop", NULL);
1275
1276         g_free(dirname);
1277         g_free(path);
1278 }
1279
1280 gint main(gint argc, gchar *argv[])
1281 {
1282         CollectionData *cd = nullptr;
1283         CollectionData *first_collection = nullptr;
1284         gboolean disable_clutter = FALSE;
1285         gboolean single_dir = TRUE;
1286         gchar *buf;
1287         GdkScreen *screen;
1288         GtkCssProvider *provider;
1289         GtkSettings *default_settings;
1290         LayoutWindow *lw;
1291
1292         gdk_set_allowed_backends("x11,*");
1293
1294         gdk_threads_init();
1295         gdk_threads_enter();
1296
1297         /* seg. fault handler */
1298 #ifdef HAVE_DEVELOPER
1299         backward::SignalHandling sh{};
1300 #else
1301         setup_sig_handler();
1302 #endif
1303
1304         /* init execution time counter (debug only) */
1305         init_exec_time();
1306
1307         create_application_paths();
1308
1309         /* setup locale, i18n */
1310         setlocale(LC_ALL, "");
1311
1312 #ifdef ENABLE_NLS
1313         bindtextdomain(PACKAGE, gq_localedir);
1314         bind_textdomain_codeset(PACKAGE, "UTF-8");
1315         textdomain(PACKAGE);
1316 #endif
1317
1318         exif_init();
1319
1320 #ifdef HAVE_LUA
1321         lua_init();
1322 #endif
1323
1324         /* setup random seed for random slideshow */
1325         srand(time(nullptr));
1326
1327 #if 0
1328         /* See later comment; this handler leads to UB. */
1329         setup_sigbus_handler();
1330 #endif
1331
1332         /* register global notify functions */
1333         file_data_register_notify_func(cache_notify_cb, nullptr, NOTIFY_PRIORITY_HIGH);
1334         file_data_register_notify_func(thumb_notify_cb, nullptr, NOTIFY_PRIORITY_HIGH);
1335         file_data_register_notify_func(histogram_notify_cb, nullptr, NOTIFY_PRIORITY_HIGH);
1336         file_data_register_notify_func(collect_manager_notify_cb, nullptr, NOTIFY_PRIORITY_LOW);
1337         file_data_register_notify_func(metadata_notify_cb, nullptr, NOTIFY_PRIORITY_LOW);
1338
1339
1340         gtkrc_load();
1341
1342         parse_command_line_for_debug_option(argc, argv);
1343         DEBUG_1("%s main: gtk_init", get_exec_time());
1344 #ifdef HAVE_CLUTTER
1345         if (parse_command_line_for_clutter_option(argc, argv))
1346                 {
1347                 disable_clutter = TRUE;
1348                 gtk_init(&argc, &argv);
1349                 }
1350         else
1351                 {
1352                 if (gtk_clutter_init(&argc, &argv) != CLUTTER_INIT_SUCCESS)
1353                         {
1354                         log_printf("Can't initialize clutter-gtk.\nStart Geeqie with the option \"geeqie --disable-clutter\"");
1355                         runcmd("zenity --error --title=\"Geeqie\" --text \"Can't initialize clutter-gtk.\n\nStart Geeqie with the option:\n geeqie --disable-clutter\" --width=300");
1356                         exit(1);
1357                         }
1358                 }
1359 #else
1360         gtk_init(&argc, &argv);
1361 #endif
1362
1363         if (gtk_major_version < GTK_MAJOR_VERSION ||
1364             (gtk_major_version == GTK_MAJOR_VERSION && gtk_minor_version < GTK_MINOR_VERSION) )
1365                 {
1366                 log_printf("!!! This is a friendly warning.\n");
1367                 log_printf("!!! The version of GTK+ in use now is older than when %s was compiled.\n", GQ_APPNAME);
1368                 log_printf("!!!  compiled with GTK+-%d.%d\n", GTK_MAJOR_VERSION, GTK_MINOR_VERSION);
1369                 log_printf("!!!   running with GTK+-%d.%d\n", gtk_major_version, gtk_minor_version);
1370                 log_printf("!!! %s may quit unexpectedly with a relocation error.\n", GQ_APPNAME);
1371                 }
1372
1373         DEBUG_1("%s main: pixbuf_inline_register_stock_icons", get_exec_time());
1374         gtk_icon_theme_add_resource_path(gtk_icon_theme_get_default(), GQ_RESOURCE_PATH_ICONS);
1375         pixbuf_inline_register_stock_icons();
1376
1377         DEBUG_1("%s main: setting default options before commandline handling", get_exec_time());
1378         options = init_options(nullptr);
1379         setup_default_options(options);
1380         if (disable_clutter)
1381                 {
1382                 options->disable_gpu = TRUE;
1383                 }
1384
1385         /* Generate a unique identifier used by the open archive function */
1386         instance_identifier = g_strdup_printf("%x", g_random_int());
1387
1388         DEBUG_1("%s main: mkdir_if_not_exists", get_exec_time());
1389         /* these functions don't depend on config file */
1390         mkdir_if_not_exists(get_rc_dir());
1391         mkdir_if_not_exists(get_collections_dir());
1392         mkdir_if_not_exists(get_thumbnails_cache_dir());
1393         mkdir_if_not_exists(get_metadata_cache_dir());
1394         mkdir_if_not_exists(get_window_layouts_dir());
1395
1396         setup_env_path();
1397
1398         screen = gdk_screen_get_default();
1399         provider = gtk_css_provider_new();
1400         gtk_css_provider_load_from_resource(provider, GQ_RESOURCE_PATH_UI "/custom.css");
1401         gtk_style_context_add_provider_for_screen(screen, GTK_STYLE_PROVIDER(provider), GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
1402
1403         if (parse_command_line_for_cache_maintenance_option(argc, argv))
1404                 {
1405                 process_command_line_for_cache_maintenance_option(argc, argv);
1406                 }
1407         else
1408                 {
1409                 DEBUG_1("%s main: parse_command_line", get_exec_time());
1410                 parse_command_line(argc, argv);
1411
1412                 keys_load();
1413                 accel_map_load();
1414
1415                 /* restore session from the config file */
1416
1417
1418                 DEBUG_1("%s main: load_options", get_exec_time());
1419                 if (!load_options(options))
1420                         {
1421                         /* load_options calls these functions after it parses global options, we have to call it here if it fails */
1422                         filter_add_defaults();
1423                         filter_rebuild();
1424                         }
1425
1426         #ifdef HAVE_CLUTTER
1427         /** @FIXME For the background of this see:
1428          * https://github.com/BestImageViewer/geeqie/issues/397
1429          * The feature CLUTTER_FEATURE_SWAP_EVENTS indictates if the
1430          * system is liable to exhibit this problem.
1431          * The user is provided with an override in Preferences/Behavior
1432          */
1433                 if (!options->override_disable_gpu && !options->disable_gpu)
1434                         {
1435                         DEBUG_1("CLUTTER_FEATURE_SWAP_EVENTS %d",clutter_feature_available(CLUTTER_FEATURE_SWAP_EVENTS));
1436                         if (clutter_feature_available(CLUTTER_FEATURE_SWAP_EVENTS) != 0)
1437                                 {
1438                                 options->disable_gpu = TRUE;
1439                                 }
1440                         }
1441         #endif
1442
1443                 /* handle missing config file and commandline additions*/
1444                 if (!layout_window_list)
1445                         {
1446                         /* broken or no config file or no <layout> section */
1447                         layout_new_from_default();
1448                         }
1449
1450                 layout_editors_reload_start();
1451
1452                 /* If no --list option, open a separate collection window for each
1453                  * .gqv file on the command line
1454                  */
1455                 if (command_line->collection_list && !command_line->startup_command_line_collection)
1456                         {
1457                         GList *work;
1458
1459                         work = command_line->collection_list;
1460                         while (work)
1461                                 {
1462                                 CollectWindow *cw;
1463                                 const gchar *path;
1464
1465                                 path = static_cast<const gchar *>(work->data);
1466                                 work = work->next;
1467
1468                                 cw = collection_window_new(path);
1469                                 if (!first_collection && cw) first_collection = cw->cd;
1470                                 }
1471                         }
1472
1473                 if (command_line->log_file)
1474                         {
1475                         gchar *pathl;
1476                         gchar *path = g_strdup(command_line->log_file);
1477
1478                         pathl = path_from_utf8(path);
1479                         command_line->ssi = secure_open(pathl);
1480                         }
1481
1482                 /* If there is a files list on the command line and no --list option,
1483                  * check if they are all in the same folder
1484                  */
1485                 if (command_line->cmd_list && !(command_line->startup_command_line_collection))
1486                         {
1487                         GList *work;
1488                         gchar *path = nullptr;
1489
1490                         work = command_line->cmd_list;
1491
1492                         while (work && single_dir)
1493                                 {
1494                                 gchar *dirname;
1495
1496                                 dirname = g_path_get_dirname(static_cast<const gchar *>(work->data));
1497                                 if (!path)
1498                                         {
1499                                         path = g_strdup(dirname);
1500                                         }
1501                                 else
1502                                         {
1503                                         if (g_strcmp0(path, dirname) != 0)
1504                                                 {
1505                                                 single_dir = FALSE;
1506                                                 }
1507                                         }
1508                                 g_free(dirname);
1509                                 work = work->next;
1510                                 }
1511                         g_free(path);
1512                         }
1513
1514                 /* Files from multiple folders, or --list option given
1515                  * then open an unnamed collection and insert all files
1516                  */
1517                 if ((command_line->cmd_list && !single_dir) || (command_line->startup_command_line_collection && command_line->cmd_list))
1518                         {
1519                         GList *work;
1520                         CollectWindow *cw;
1521
1522                         cw = collection_window_new(nullptr);
1523                         cd = cw->cd;
1524
1525                         collection_path_changed(cd);
1526
1527                         work = command_line->cmd_list;
1528                         while (work)
1529                                 {
1530                                 FileData *fd;
1531
1532                                 fd = file_data_new_simple(static_cast<const gchar *>(work->data));
1533                                 collection_add(cd, fd, FALSE);
1534                                 file_data_unref(fd);
1535                                 work = work->next;
1536                                 }
1537
1538                         work = command_line->collection_list;
1539                         while (work)
1540                                 {
1541                                 collection_load(cd, static_cast<gchar *>(work->data), COLLECTION_LOAD_APPEND);
1542                                 work = work->next;
1543                                 }
1544
1545                         if (cd->list) layout_image_set_collection(nullptr, cd, static_cast<CollectInfo *>(cd->list->data));
1546
1547                         /* mem leak, we never unref this collection when !startup_command_line_collection
1548                          * (the image view of the main window does not hold a ref to the collection)
1549                          * this is sort of unavoidable, for if it did hold a ref, next/back
1550                          * may not work as expected when closing collection windows.
1551                          *
1552                          * collection_unref(cd);
1553                          */
1554
1555                         }
1556                 else if (first_collection)
1557                         {
1558                         layout_image_set_collection(nullptr, first_collection,
1559                                                     collection_get_first(first_collection));
1560                         }
1561
1562                 /* If the files on the command line are from one folder, select those files
1563                  * unless it is a command line collection - then leave focus on collection window
1564                  */
1565                 lw = nullptr;
1566                 layout_valid(&lw);
1567
1568                 if (single_dir && command_line->cmd_list && !command_line->startup_command_line_collection)
1569                         {
1570                         GList *work;
1571                         GList *selected;
1572                         FileData *fd;
1573
1574                         selected = nullptr;
1575                         work = command_line->cmd_list;
1576                         while (work)
1577                                 {
1578                                 fd = file_data_new_simple(static_cast<gchar *>(work->data));
1579                                 selected = g_list_append(selected, fd);
1580                                 file_data_unref(fd);
1581                                 work = work->next;
1582                                 }
1583                         layout_select_list(lw, selected);
1584                         }
1585
1586                 buf = g_build_filename(get_rc_dir(), ".command", NULL);
1587                 remote_connection = remote_server_init(buf, cd);
1588                 g_free(buf);
1589
1590                 marks_load();
1591
1592                 default_settings = gtk_settings_get_default();
1593                 g_signal_connect(default_settings, "notify::gtk-theme-name", G_CALLBACK(theme_change_cb), NULL);
1594                 set_theme_bg_color();
1595                 }
1596
1597         /* Show a fade-out notification window if the server has a newer AppImage version */
1598         if (options->appimage_notifications)
1599                 {
1600                 if (g_getenv("APPDIR") && strstr(g_getenv("APPDIR"), "/tmp/.mount_Geeqie"))
1601                         {
1602                         appimage_notification();
1603                         }
1604                 else if (g_strstr_len(gq_executable_path, -1, "AppRun"))
1605                         {
1606                         /* Probably running an extracted AppImage */
1607                         appimage_notification();
1608                         }
1609                 }
1610
1611         DEBUG_1("%s main: gtk_main", get_exec_time());
1612         gtk_main();
1613
1614         gdk_threads_leave();
1615         return 0;
1616 }
1617 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */