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 "main.h"
  23
  24 #include <unistd.h>
  25
  26 #include <clocale>
  27 #include <csignal>
  28 #include <cstdlib>
  29 #include <cstring>
  30 #include <ctime>
  31
  32 #include <config.h>
  33
  34 #if HAVE_CLUTTER
  35 #  include <clutter-gtk/clutter-gtk.h>
  36 #  include <clutter/clutter.h>
  37 #endif
  38
  39 #if HAVE_EXECINFO_H
  40 #include <execinfo.h>
  41 #endif
  42
  43 #include <gio/gio.h>
  44 #include <glib-object.h>
  45
  46 #ifdef ENABLE_NLS
  47 #  include <libintl.h>
  48 #endif
  49
  50 #if HAVE_DEVELOPER
  51 #include "third-party/backward.h"
  52 #endif
  53
  54 #include "cache-maint.h"
  55 #include "cache.h"
  56 #include "collect-io.h"
  57 #include "collect.h"
  58 #include "compat.h"
  59 #include "debug.h"
  60 #include "exif.h"
  61 #include "filedata.h"
  62 #include "filefilter.h"
  63 #include "glua.h"
  64 #include "histogram.h"
  65 #include "history-list.h"
  66 #include "image.h"
  67 #include "img-view.h"
  68 #include "intl.h"
  69 #include "layout-image.h"
  70 #include "layout-util.h"
  71 #include "layout.h"
  72 #include "main-defines.h"
  73 #include "metadata.h"
  74 #include "misc.h"
  75 #include "options.h"
  76 #include "pixbuf-util.h"
  77 #include "rcfile.h"
  78 #include "remote.h"
  79 #include "secure-save.h"
  80 #include "third-party/whereami.h"
  81 #include "thumb.h"
  82 #include "ui-fileops.h"
  83 #include "ui-utildlg.h"
  84
  85 gboolean thumb_format_changed = FALSE;
  86 static RemoteConnection *remote_connection = nullptr;
  87
  88 gchar *gq_prefix;
  89 gchar *gq_localedir;
  90 gchar *gq_helpdir;
  91 gchar *gq_htmldir;
  92 gchar *gq_appdir;
  93 gchar *gq_bindir;
  94 gchar *gq_executable_path;
  95 gchar *desktop_file_template;
  96 gchar *instance_identifier;
  97
  98 #if defined(SA_SIGINFO)
  99 void sig_handler_cb(int signo, siginfo_t *info, void *)
 100 {
 101         gchar hex_char[16];
 102         const gchar *signal_name = nullptr;
 103         gint i = 0;
 104         guint64 addr;
 105         guint64 char_index;
 106         ssize_t len;
 107 #if HAVE_EXECINFO_H
 108         gint bt_size;
 109         void *bt[1024];
 110 #endif
 111         struct signals
 112                 {
 113                 gint sig_no;
 114                 const gchar *sig_name;
 115                 };
 116         struct signals signals_list[7];
 117
 118         signals_list[0].sig_no = SIGABRT;
 119         signals_list[0].sig_name = "Abort";
 120         signals_list[1].sig_no = SIGBUS;
 121         signals_list[1].sig_name = "Bus error";
 122         signals_list[2].sig_no = SIGFPE;
 123         signals_list[2].sig_name = "Floating-point exception";
 124         signals_list[3].sig_no = SIGILL;
 125         signals_list[3].sig_name = "Illegal instruction";
 126         signals_list[4].sig_no = SIGIOT;
 127         signals_list[4].sig_name = "IOT trap";
 128         signals_list[5].sig_no = SIGSEGV;
 129         signals_list[5].sig_name = "Invalid memory reference";
 130         signals_list[6].sig_no = -1;
 131         signals_list[6].sig_name = "END";
 132
 133         hex_char[0] = '0';
 134         hex_char[1] = '1';
 135         hex_char[2] = '2';
 136         hex_char[3] = '3';
 137         hex_char[4] = '4';
 138         hex_char[5] = '5';
 139         hex_char[6] = '6';
 140         hex_char[7] = '7';
 141         hex_char[8] = '8';
 142         hex_char[9] = '9';
 143         hex_char[10] = 'a';
 144         hex_char[11] = 'b';
 145         hex_char[12] = 'c';
 146         hex_char[13] = 'd';
 147         hex_char[14] = 'e';
 148         hex_char[15] = 'f';
 149
 150         signal_name = "Unknown signal";
 151         while (signals_list[i].sig_no != -1)
 152                 {
 153                 if (signo == signals_list[i].sig_no)
 154                         {
 155                         signal_name = signals_list[i].sig_name;
 156                         break;
 157                         }
 158                 i++;
 159                 }
 160
 161         len = write(STDERR_FILENO, "Geeqie fatal error\n", 19);
 162         len = write(STDERR_FILENO, "Signal: ", 8);
 163         len = write(STDERR_FILENO, signal_name, strlen(signal_name));
 164         len = write(STDERR_FILENO, "\n", 1);
 165
 166         len = write(STDERR_FILENO, "Code: ", 6);
 167         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"));
 168         len = write(STDERR_FILENO, "\n", 1);
 169
 170         len = write(STDERR_FILENO, "Address: ", 9);
 171
 172         if (info->si_addr == nullptr)
 173                 {
 174                 len = write(STDERR_FILENO, "0x0\n", 4);
 175                 }
 176         else
 177                 {
 178                 /* Assume the address is 64-bit */
 179                 len = write(STDERR_FILENO, "0x", 2);
 180                 addr = reinterpret_cast<guint64>(info->si_addr);
 181
 182                 for (i = 0; i < 16; i++)
 183                         {
 184                         char_index = addr & 0xf000000000000000;
 185                         char_index = char_index >> 60;
 186                         addr = addr << 4;
 187
 188                         len = write(STDERR_FILENO, &hex_char[char_index], 1);
 189                         }
 190                 len = write(STDERR_FILENO, "\n", 1);
 191                 }
 192
 193 #if HAVE_EXECINFO_H
 194         bt_size = backtrace(bt, 1024);
 195         backtrace_symbols_fd(bt, bt_size, STDERR_FILENO);
 196 #endif
 197
 198         /* Avoid "not used" warning */
 199         len++;
 200
 201         exit(EXIT_FAILURE);
 202 }
 203 #else /* defined(SA_SIGINFO) */
 204 void sig_handler_cb(int)
 205 {
 206 #if HAVE_EXECINFO_H
 207         gint bt_size;
 208         void *bt[1024];
 209 #endif
 210
 211         write(STDERR_FILENO, "Geeqie fatal error\n", 19);
 212         write(STDERR_FILENO, "Signal: Segmentation fault\n", 27);
 213
 214 #if HAVE_EXECINFO_H
 215         bt_size = backtrace(bt, 1024);
 216         backtrace_symbols_fd(bt, bt_size, STDERR_FILENO);
 217 #endif
 218
 219         exit(EXIT_FAILURE);
 220 }
 221 #endif /* defined(SA_SIGINFO) */
 222
 223 /*
 224  *-----------------------------------------------------------------------------
 225  * keyboard functions
 226  *-----------------------------------------------------------------------------
 227  */
 228
 229 void keyboard_scroll_calc(gint *x, gint *y, GdkEventKey *event)
 230 {
 231         static gint delta = 0;
 232         static guint32 time_old = 0;
 233         static guint keyval_old = 0;
 234
 235         if (event->state & GDK_CONTROL_MASK)
 236                 {
 237                 if (*x < 0) *x = G_MININT / 2;
 238                 if (*x > 0) *x = G_MAXINT / 2;
 239                 if (*y < 0) *y = G_MININT / 2;
 240                 if (*y > 0) *y = G_MAXINT / 2;
 241
 242                 return;
 243                 }
 244
 245         if (options->progressive_key_scrolling)
 246                 {
 247                 guint32 time_diff;
 248
 249                 time_diff = event->time - time_old;
 250
 251                 /* key pressed within 125ms ? (1/8 second) */
 252                 if (time_diff > 125 || event->keyval != keyval_old) delta = 0;
 253
 254                 time_old = event->time;
 255                 keyval_old = event->keyval;
 256
 257                 delta += 2;
 258                 }
 259         else
 260                 {
 261                 delta = 8;
 262                 }
 263
 264         *x = *x * delta * options->keyboard_scroll_step;
 265         *y = *y * delta * options->keyboard_scroll_step;
 266 }
 267
 268
 269
 270 /*
 271  *-----------------------------------------------------------------------------
 272  * command line parser (private) hehe, who needs popt anyway?
 273  *-----------------------------------------------------------------------------
 274  */
 275
 276 static void parse_command_line_add_file(const gchar *file_path, gchar **path, gchar **file,
 277                                         GList **list, GList **collection_list)
 278 {
 279         gchar *path_parsed;
 280
 281         path_parsed = g_strdup(file_path);
 282         parse_out_relatives(path_parsed);
 283
 284         if (file_extension_match(path_parsed, GQ_COLLECTION_EXT))
 285                 {
 286                 *collection_list = g_list_append(*collection_list, path_parsed);
 287                 }
 288         else
 289                 {
 290                 if (!*path) *path = remove_level_from_path(path_parsed);
 291                 if (!*file) *file = g_strdup(path_parsed);
 292                 *list = g_list_prepend(*list, path_parsed);
 293                 }
 294 }
 295
 296 static void parse_command_line_add_dir(const gchar *dir, gchar **, gchar **, GList **)
 297 {
 298 #if 0
 299         /* This is broken because file filter is not initialized yet.
 300         */
 301         GList *files;
 302         gchar *path_parsed;
 303         FileData *dir_fd;
 304
 305         path_parsed = g_strdup(dir);
 306         parse_out_relatives(path_parsed);
 307         dir_fd = file_data_new_dir(path_parsed);
 308
 309
 310         if (filelist_read(dir_fd, &files, NULL))
 311                 {
 312                 GList *work;
 313
 314                 files = filelist_filter(files, FALSE);
 315                 files = filelist_sort_path(files);
 316
 317                 work = files;
 318                 while (work)
 319                         {
 320                         FileData *fd = static_cast<FileData *>(work->data);
 321                         if (!*path) *path = remove_level_from_path(fd->path);
 322                         if (!*file) *file = g_strdup(fd->path);
 323                         *list = g_list_prepend(*list, fd);
 324
 325                         work = work->next;
 326                         }
 327
 328                 g_list_free(files);
 329                 }
 330
 331         g_free(path_parsed);
 332         file_data_unref(dir_fd);
 333 #else
 334         DEBUG_1("multiple directories specified, ignoring: %s", dir);
 335 #endif
 336 }
 337
 338 static void parse_command_line_process_dir(const gchar *dir, gchar **path, gchar **file,
 339                                            GList **list, gchar **first_dir)
 340 {
 341
 342         if (!*list && !*first_dir)
 343                 {
 344                 *first_dir = g_strdup(dir);
 345                 }
 346         else
 347                 {
 348                 if (*first_dir)
 349                         {
 350                         parse_command_line_add_dir(*first_dir, path, file, list);
 351                         g_free(*first_dir);
 352                         *first_dir = nullptr;
 353                         }
 354                 parse_command_line_add_dir(dir, path, file, list);
 355                 }
 356 }
 357
 358 static void parse_command_line_process_file(const gchar *file_path, gchar **path, gchar **file,
 359                                             GList **list, GList **collection_list, gchar **first_dir)
 360 {
 361
 362         if (*first_dir)
 363                 {
 364                 parse_command_line_add_dir(*first_dir, path, file, list);
 365                 g_free(*first_dir);
 366                 *first_dir = nullptr;
 367                 }
 368         parse_command_line_add_file(file_path, path, file, list, collection_list);
 369 }
 370
 371 static void parse_command_line(gint argc, gchar *argv[])
 372 {
 373         GList *list = nullptr;
 374         GList *remote_list = nullptr;
 375         GList *remote_errors = nullptr;
 376         gboolean remote_do = FALSE;
 377         gchar *first_dir = nullptr;
 378         gchar *app_lock;
 379         gchar *pwd;
 380         gchar *current_dir;
 381         gchar *geometry = nullptr;
 382         GtkWidget *dialog_warning;
 383         GString *command_line_errors = g_string_new(nullptr);
 384
 385         command_line = g_new0(CommandLine, 1);
 386
 387         command_line->argc = argc;
 388         command_line->argv = argv;
 389         command_line->regexp = nullptr;
 390
 391         if (argc > 1)
 392                 {
 393                 gint i;
 394                 gchar *base_dir = get_current_dir();
 395                 i = 1;
 396                 while (i < argc)
 397                         {
 398                         gchar *cmd_line = path_to_utf8(argv[i]);
 399                         gchar *cmd_all = g_build_filename(base_dir, cmd_line, NULL);
 400
 401                         if (cmd_line[0] == G_DIR_SEPARATOR && isdir(cmd_line))
 402                                 {
 403                                 parse_command_line_process_dir(cmd_line, &command_line->path, &command_line->file, &list, &first_dir);
 404                                 }
 405                         else if (isdir(cmd_all))
 406                                 {
 407                                 parse_command_line_process_dir(cmd_all, &command_line->path, &command_line->file, &list, &first_dir);
 408                                 }
 409                         else if (cmd_line[0] == G_DIR_SEPARATOR && isfile(cmd_line))
 410                                 {
 411                                 parse_command_line_process_file(cmd_line, &command_line->path, &command_line->file,
 412                                                                 &list, &command_line->collection_list, &first_dir);
 413                                 }
 414                         else if (isfile(cmd_all))
 415                                 {
 416                                 parse_command_line_process_file(cmd_all, &command_line->path, &command_line->file,
 417                                                                 &list, &command_line->collection_list, &first_dir);
 418                                 }
 419                         else if (download_web_file(cmd_line, FALSE, nullptr))
 420                                 {
 421                                 }
 422                         else if (is_collection(cmd_line))
 423                                 {
 424                                 gchar *path = nullptr;
 425
 426                                 path = collection_path(cmd_line);
 427                                 parse_command_line_process_file(path, &command_line->path, &command_line->file,
 428                                                                 &list, &command_line->collection_list, &first_dir);
 429                                 g_free(path);
 430                                 }
 431                         else if (strncmp(cmd_line, "--debug", 7) == 0 && (cmd_line[7] == '\0' || cmd_line[7] == '='))
 432                                 {
 433                                 /* do nothing but do not produce warnings */
 434                                 }
 435                         else if (strncmp(cmd_line, "--disable-clutter", 17) == 0 && (cmd_line[17] == '\0'))
 436                                 {
 437                                 /* do nothing but do not produce warnings */
 438                                 }
 439                         else if (strcmp(cmd_line, "+t") == 0 ||
 440                                  strcmp(cmd_line, "--with-tools") == 0)
 441                                 {
 442                                 command_line->tools_show = TRUE;
 443
 444                                 remote_list = g_list_append(remote_list, g_strdup("+t"));
 445                                 }
 446                         else if (strcmp(cmd_line, "-t") == 0 ||
 447                                  strcmp(cmd_line, "--without-tools") == 0)
 448                                 {
 449                                 command_line->tools_hide = TRUE;
 450
 451                                 remote_list = g_list_append(remote_list, g_strdup("-t"));
 452                                 }
 453                         else if (strcmp(cmd_line, "-f") == 0 ||
 454                                  strcmp(cmd_line, "--fullscreen") == 0)
 455                                 {
 456                                 command_line->startup_full_screen = TRUE;
 457                                 }
 458                         else if (strcmp(cmd_line, "-s") == 0 ||
 459                                  strcmp(cmd_line, "--slideshow") == 0)
 460                                 {
 461                                 command_line->startup_in_slideshow = TRUE;
 462                                 }
 463                         else if (strcmp(cmd_line, "-l") == 0 ||
 464                                  strcmp(cmd_line, "--list") == 0)
 465                                 {
 466                                 command_line->startup_command_line_collection = TRUE;
 467                                 }
 468                         else if (strncmp(cmd_line, "--geometry=", 11) == 0)
 469                                 {
 470                                 if (!command_line->geometry) command_line->geometry = g_strdup(cmd_line + 11);
 471                                 }
 472                         else if (strcmp(cmd_line, "-r") == 0 ||
 473                                  strcmp(cmd_line, "--remote") == 0)
 474                                 {
 475                                 if (!remote_do)
 476                                         {
 477                                         remote_do = TRUE;
 478                                         remote_list = remote_build_list(remote_list, argc - i, &argv[i], &remote_errors);
 479                                         }
 480                                 }
 481                         else if ((strcmp(cmd_line, "+w") == 0) ||
 482                                                 strcmp(cmd_line, "--show-log-window") == 0)
 483                                 {
 484                                 command_line->log_window_show = TRUE;
 485                                 }
 486                         else if (strncmp(cmd_line, "-o:", 3) == 0)
 487                                 {
 488                                 command_line->log_file = g_strdup(cmd_line + 3);
 489                                 }
 490                         else if (strncmp(cmd_line, "--log-file:", 11) == 0)
 491                                 {
 492                                 command_line->log_file = g_strdup(cmd_line + 11);
 493                                 }
 494                         else if (strncmp(cmd_line, "-g:", 3) == 0)
 495                                 {
 496                                 set_regexp(g_strdup(cmd_line+3));
 497                                 }
 498                         else if (strncmp(cmd_line, "-grep:", 6) == 0)
 499                                 {
 500                                 set_regexp(g_strdup(cmd_line+3));
 501                                 }
 502                         else if (strncmp(cmd_line, "-n", 2) == 0)
 503                                 {
 504                                 command_line->new_instance = TRUE;
 505                                 }
 506                         else if (strncmp(cmd_line, "--new-instance", 14) == 0)
 507                                 {
 508                                 command_line->new_instance = TRUE;
 509                                 }
 510                         else if (strcmp(cmd_line, "-rh") == 0 ||
 511                                  strcmp(cmd_line, "--remote-help") == 0)
 512                                 {
 513                                 remote_help();
 514                                 exit(0);
 515                                 }
 516                         else if (strcmp(cmd_line, "--blank") == 0)
 517                                 {
 518                                 command_line->startup_blank = TRUE;
 519                                 }
 520                         else if (strcmp(cmd_line, "-v") == 0 ||
 521                                  strcmp(cmd_line, "--version") == 0)
 522                                 {
 523                                 printf_term(FALSE, "%s %s GTK%d\n", GQ_APPNAME, VERSION, gtk_major_version);
 524                                 exit(0);
 525                                 }
 526                         else if (strcmp(cmd_line, "-h") == 0 ||
 527                                  strcmp(cmd_line, "--help") == 0)
 528                                 {
 529                                 printf_term(FALSE, "%s %s\n", GQ_APPNAME, VERSION);
 530                                 printf_term(FALSE, _("Usage: %s [options] [path]\n\n"), GQ_APPNAME_LC);
 531                                 print_term(FALSE, _("Valid options:\n"));
 532                                 print_term(FALSE, _("      --blank                      start with blank file list\n"));
 533                                 print_term(FALSE, _("      --cache-maintenance <path>   run cache maintenance in non-GUI mode\n"));
 534                                 print_term(FALSE, _("      --disable-clutter            disable use of Clutter library (i.e. GPU accel.)\n"));
 535                                 print_term(FALSE, _("  -f, --fullscreen                 start in full screen mode\n"));
 536                                 print_term(FALSE, _("      --geometry=WxH+XOFF+YOFF     set main window location\n"));
 537                                 print_term(FALSE, _("  -h, --help                       show this message\n"));
 538                                 print_term(FALSE, _("  -l, --list [files] [collections] open collection window for command line\n"));
 539                                 print_term(FALSE, _("  -n, --new-instance               open a new instance of Geeqie *\n"));
 540                                 print_term(FALSE, _("  -o:, --log-file:<file>           save log data to file\n"));
 541                                 print_term(FALSE, _("  -r, --remote                     send following commands to open window\n"));
 542                                 print_term(FALSE, _("  -rh, --remote-help               print remote command list\n"));
 543                                 print_term(FALSE, _("  -s, --slideshow                  start in slideshow mode\n"));
 544                                 print_term(FALSE, _("  +t, --with-tools                 force show of tools\n"));
 545                                 print_term(FALSE, _("  -t, --without-tools              force hide of tools\n"));
 546                                 print_term(FALSE, _("  -v, --version                    print version info\n"));
 547                                 print_term(FALSE, _("  +w, --show-log-window            show log window\n"));
 548 #ifdef DEBUG
 549                                 print_term(FALSE, _("      --debug[=level]              turn on debug output\n"));
 550                                 print_term(FALSE, _("  -g:, --grep:<regexp>             filter debug output\n"));
 551 #endif
 552
 553                                 print_term(FALSE, "\n");
 554                                 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");
 555
 556                                 remote_help();
 557
 558
 559                                 exit(0);
 560                                 }
 561                         else if (!remote_do)
 562                                 {
 563                                 command_line_errors = g_string_append(command_line_errors, cmd_line);
 564                                 command_line_errors = g_string_append(command_line_errors, "\n");
 565                                 }
 566
 567                         g_free(cmd_all);
 568                         g_free(cmd_line);
 569                         i++;
 570                         }
 571
 572                 if (command_line_errors->len > 0)
 573                         {
 574                         dialog_warning = gtk_message_dialog_new(nullptr, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", "Invalid parameter(s):");
 575                         gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog_warning), "%s", command_line_errors->str);
 576                         gtk_window_set_title(GTK_WINDOW(dialog_warning), GQ_APPNAME);
 577                         gq_gtk_window_set_keep_above(GTK_WINDOW(dialog_warning), TRUE);
 578                         gtk_dialog_run(GTK_DIALOG(dialog_warning));
 579                         g_object_unref(dialog_warning);
 580                         g_string_free(command_line_errors, TRUE);
 581
 582                         exit(EXIT_FAILURE);
 583                         }
 584
 585                 g_free(base_dir);
 586                 parse_out_relatives(command_line->path);
 587                 parse_out_relatives(command_line->file);
 588                 }
 589
 590         list = g_list_reverse(list);
 591
 592         if (!command_line->path && first_dir)
 593                 {
 594                 command_line->path = first_dir;
 595                 first_dir = nullptr;
 596
 597                 parse_out_relatives(command_line->path);
 598                 }
 599         g_free(first_dir);
 600
 601         if (!command_line->new_instance)
 602                 {
 603                 /* If Geeqie is already running, prevent a second instance
 604                  * from being started. Open a new window instead.
 605                  */
 606                 app_lock = g_build_filename(get_rc_dir(), ".command", NULL);
 607                 if (remote_server_exists(app_lock) && !remote_do)
 608                         {
 609                         remote_do = TRUE;
 610                         if (command_line->geometry)
 611                                 {
 612                                 geometry = g_strdup_printf("--geometry=%s", command_line->geometry);
 613                                 remote_list = g_list_prepend(remote_list, geometry);
 614                                 }
 615                         remote_list = g_list_prepend(remote_list, g_strdup("--new-window"));
 616                         }
 617                 g_free(app_lock);
 618                 }
 619
 620         if (remote_do)
 621                 {
 622                 if (remote_errors)
 623                         {
 624                         GList *work = remote_errors;
 625
 626                         while (work)
 627                                 {
 628                                 auto opt = static_cast<gchar *>(work->data);
 629
 630                                 command_line_errors = g_string_append(command_line_errors, opt);
 631                                 command_line_errors = g_string_append(command_line_errors, "\n");
 632                                 work = work->next;
 633                                 }
 634
 635                         dialog_warning = gtk_message_dialog_new(nullptr, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", "Invalid parameter(s):");
 636                         gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog_warning), "%s", command_line_errors->str);
 637                         gtk_window_set_title(GTK_WINDOW(dialog_warning), GQ_APPNAME);
 638                         gq_gtk_window_set_keep_above(GTK_WINDOW(dialog_warning), TRUE);
 639                         gtk_dialog_run(GTK_DIALOG(dialog_warning));
 640                         g_object_unref(dialog_warning);
 641                         g_string_free(command_line_errors, TRUE);
 642
 643                         exit(EXIT_FAILURE);
 644                         }
 645
 646                 /* prepend the current dir the remote command was made from,
 647                  * for use by any remote command that needs it
 648                  */
 649                 current_dir = g_get_current_dir();
 650                 pwd = g_strconcat("--PWD:", current_dir, NULL);
 651                 remote_list = g_list_prepend(remote_list, pwd);
 652
 653                 remote_control(argv[0], remote_list, command_line->path, list, command_line->collection_list);
 654                 /* There is no return to this point
 655                  */
 656                 g_free(pwd);
 657                 g_free(current_dir);
 658                 }
 659         g_free(geometry);
 660         g_list_free(remote_list);
 661
 662         if (list && list->next)
 663                 {
 664                 command_line->cmd_list = list;
 665                 }
 666         else
 667                 {
 668                 g_list_free_full(list, g_free);
 669                 command_line->cmd_list = nullptr;
 670                 }
 671
 672         if (command_line->startup_blank)
 673                 {
 674                 g_free(command_line->path);
 675                 command_line->path = nullptr;
 676                 g_free(command_line->file);
 677                 command_line->file = nullptr;
 678                 filelist_free(command_line->cmd_list);
 679                 command_line->cmd_list = nullptr;
 680                 g_list_free_full(command_line->collection_list, g_free);
 681                 command_line->collection_list = nullptr;
 682                 }
 683 }
 684
 685 static void parse_command_line_for_debug_option(gint argc, gchar *argv[])
 686 {
 687 #ifdef DEBUG
 688         const gchar *debug_option = "--debug";
 689         gint len = strlen(debug_option);
 690
 691         if (argc > 1)
 692                 {
 693                 gint i;
 694
 695                 for (i = 1; i < argc; i++)
 696                         {
 697                         const gchar *cmd_line = argv[i];
 698                         if (strncmp(cmd_line, debug_option, len) == 0)
 699                                 {
 700                                 gint cmd_line_len = strlen(cmd_line);
 701
 702                                 /* we now increment the debug state for verbosity */
 703                                 if (cmd_line_len == len)
 704                                         debug_level_add(1);
 705                                 else if (cmd_line[len] == '=' && g_ascii_isdigit(cmd_line[len+1]))
 706                                         {
 707                                         gint n = atoi(cmd_line + len + 1);
 708                                         if (n < 0) n = 1;
 709                                         debug_level_add(n);
 710                                         }
 711                                 }
 712                         }
 713                 }
 714
 715         DEBUG_1("debugging output enabled (level %d)", get_debug_level());
 716 #endif
 717 }
 718
 719 #if HAVE_CLUTTER
 720 static gboolean parse_command_line_for_clutter_option(gint argc, gchar *argv[])
 721 {
 722         const gchar *clutter_option = "--disable-clutter";
 723         gint len = strlen(clutter_option);
 724         gboolean ret = FALSE;
 725
 726         if (argc > 1)
 727                 {
 728                 gint i;
 729
 730                 for (i = 1; i < argc; i++)
 731                         {
 732                         const gchar *cmd_line = argv[i];
 733                         if (strncmp(cmd_line, clutter_option, len) == 0)
 734                                 {
 735                                 ret = TRUE;
 736                                 }
 737                         }
 738                 }
 739
 740         return ret;
 741 }
 742 #endif
 743
 744 static gboolean parse_command_line_for_cache_maintenance_option(gint argc, gchar *argv[])
 745 {
 746         const gchar *cache_maintenance_option = "--cache-maintenance";
 747         gint len = strlen(cache_maintenance_option);
 748         gboolean ret = FALSE;
 749
 750         if (argc >= 2)
 751                 {
 752                 const gchar *cmd_line = argv[1];
 753                 if (strncmp(cmd_line, cache_maintenance_option, len) == 0)
 754                         {
 755                         ret = TRUE;
 756                         }
 757                 }
 758
 759         return ret;
 760 }
 761
 762 static void process_command_line_for_cache_maintenance_option(gint argc, gchar *argv[])
 763 {
 764         gchar *rc_path;
 765         gchar *folder_path = nullptr;
 766         gsize size;
 767         gsize i = 0;
 768         gchar *buf_config_file;
 769         gint diff_count;
 770
 771         if (argc >= 3)
 772                 {
 773                 folder_path = expand_tilde(argv[2]);
 774
 775                 if (isdir(folder_path))
 776                         {
 777                         rc_path = g_build_filename(get_rc_dir(), RC_FILE_NAME, NULL);
 778
 779                         if (isfile(rc_path))
 780                                 {
 781                                 if (g_file_get_contents(rc_path, &buf_config_file, &size, nullptr))
 782                                         {
 783                                         while (i < size)
 784                                                 {
 785                                                 diff_count = strncmp("</global>", &buf_config_file[i], 9);
 786                                                 if (diff_count == 0)
 787                                                         {
 788                                                         break;
 789                                                         }
 790                                                 i++;
 791                                                 }
 792                                         /* Load only the <global> section */
 793                                         load_config_from_buf(buf_config_file, i + 9, FALSE);
 794
 795                                         if (options->thumbnails.enable_caching)
 796                                                 {
 797                                                 cache_maintenance(folder_path);
 798                                                 }
 799                                         else
 800                                                 {
 801                                                 print_term(TRUE, "Caching not enabled\n");
 802                                                 exit(EXIT_FAILURE);
 803                                                 }
 804                                         g_free(buf_config_file);
 805                                         }
 806                                 else
 807                                         {
 808                                         print_term(TRUE, g_strconcat(_("Cannot load "), rc_path, "\n", NULL));
 809                                         exit(EXIT_FAILURE);
 810                                         }
 811                                 }
 812                         else
 813                                 {
 814                                 print_term(TRUE, g_strconcat(_("Configuration file path "), rc_path, _(" is not a file\n"), NULL));
 815                                 exit(EXIT_FAILURE);
 816                                 }
 817                         g_free(rc_path);
 818                         }
 819                 else
 820                         {
 821                         print_term(TRUE, g_strconcat(argv[2], _(" is not a folder\n"), NULL));
 822                         exit(EXIT_FAILURE);
 823                         }
 824                 g_free(folder_path);
 825                 }
 826         else
 827                 {
 828                 print_term(TRUE, _("No path parameter given\n"));
 829                 exit(EXIT_FAILURE);
 830                 }
 831 }
 832
 833 /*
 834  *-----------------------------------------------------------------------------
 835  * startup, init, and exit
 836  *-----------------------------------------------------------------------------
 837  */
 838
 839 #define RC_HISTORY_NAME "history"
 840 #define RC_MARKS_NAME "marks"
 841
 842 static void setup_env_path()
 843 {
 844         const gchar *old_path = g_getenv("PATH");
 845         gchar *path = g_strconcat(gq_bindir, ":", old_path, NULL);
 846         g_setenv("PATH", path, TRUE);
 847         g_free(path);
 848 }
 849
 850 static void keys_load()
 851 {
 852         gchar *path;
 853
 854         path = g_build_filename(get_rc_dir(), RC_HISTORY_NAME, NULL);
 855         history_list_load(path);
 856         g_free(path);
 857 }
 858
 859 static void keys_save()
 860 {
 861         gchar *path;
 862
 863         path = g_build_filename(get_rc_dir(), RC_HISTORY_NAME, NULL);
 864         history_list_save(path);
 865         g_free(path);
 866 }
 867
 868 static void marks_load()
 869 {
 870         gchar *path;
 871
 872         path = g_build_filename(get_rc_dir(), RC_MARKS_NAME, NULL);
 873         marks_list_load(path);
 874         g_free(path);
 875 }
 876
 877 static void marks_save(gboolean save)
 878 {
 879         gchar *path;
 880
 881         path = g_build_filename(get_rc_dir(), RC_MARKS_NAME, NULL);
 882         marks_list_save(path, save);
 883         g_free(path);
 884 }
 885
 886 static void mkdir_if_not_exists(const gchar *path)
 887 {
 888         if (isdir(path)) return;
 889
 890         log_printf(_("Creating %s dir:%s\n"), GQ_APPNAME, path);
 891
 892         if (!recursive_mkdir_if_not_exists(path, 0755))
 893                 {
 894                 log_printf(_("Could not create dir:%s\n"), path);
 895                 }
 896 }
 897
 898
 899 /* We add to duplicate and modify  gtk_accel_map_print() and gtk_accel_map_save()
 900  * to improve the reliability in special cases (especially when disk is full)
 901  * These functions are now using secure saving stuff.
 902  */
 903 static void gq_accel_map_print(
 904                     gpointer    data,
 905                     const gchar *accel_path,
 906                     guint       accel_key,
 907                     GdkModifierType accel_mods,
 908                     gboolean    changed)
 909 {
 910         GString *gstring = g_string_new(changed ? nullptr : "; ");
 911         auto ssi = static_cast<SecureSaveInfo *>(data);
 912         gchar *tmp;
 913         gchar *name;
 914
 915         g_string_append(gstring, "(gtk_accel_path \"");
 916
 917         tmp = g_strescape(accel_path, nullptr);
 918         g_string_append(gstring, tmp);
 919         g_free(tmp);
 920
 921         g_string_append(gstring, "\" \"");
 922
 923         name = gtk_accelerator_name(accel_key, accel_mods);
 924         tmp = g_strescape(name, nullptr);
 925         g_free(name);
 926         g_string_append(gstring, tmp);
 927         g_free(tmp);
 928
 929         g_string_append(gstring, "\")\n");
 930
 931         secure_fwrite(gstring->str, sizeof(*gstring->str), gstring->len, ssi);
 932
 933         g_string_free(gstring, TRUE);
 934 }
 935
 936 static gboolean gq_accel_map_save(const gchar *path)
 937 {
 938         gchar *pathl;
 939         SecureSaveInfo *ssi;
 940         GString *gstring;
 941
 942         pathl = path_from_utf8(path);
 943         ssi = secure_open(pathl);
 944         g_free(pathl);
 945         if (!ssi)
 946                 {
 947                 log_printf(_("error saving file: %s\n"), path);
 948                 return FALSE;
 949                 }
 950
 951         gstring = g_string_new("; ");
 952         if (g_get_prgname())
 953                 g_string_append(gstring, g_get_prgname());
 954         g_string_append(gstring, " GtkAccelMap rc-file         -*- scheme -*-\n");
 955         g_string_append(gstring, "; this file is an automated accelerator map dump\n");
 956         g_string_append(gstring, ";\n");
 957
 958         secure_fwrite(gstring->str, sizeof(*gstring->str), gstring->len, ssi);
 959
 960         g_string_free(gstring, TRUE);
 961
 962         gtk_accel_map_foreach(ssi, gq_accel_map_print);
 963
 964         if (secure_close(ssi))
 965                 {
 966                 log_printf(_("error saving file: %s\nerror: %s\n"), path,
 967                            secsave_strerror(secsave_errno));
 968                 return FALSE;
 969                 }
 970
 971         return TRUE;
 972 }
 973
 974 static gchar *accep_map_filename()
 975 {
 976         return g_build_filename(get_rc_dir(), "accels", NULL);
 977 }
 978
 979 static void accel_map_save()
 980 {
 981         gchar *path;
 982
 983         path = accep_map_filename();
 984         gq_accel_map_save(path);
 985         g_free(path);
 986 }
 987
 988 static void accel_map_load()
 989 {
 990         gchar *path;
 991         gchar *pathl;
 992
 993         path = accep_map_filename();
 994         pathl = path_from_utf8(path);
 995         gtk_accel_map_load(pathl);
 996         g_free(pathl);
 997         g_free(path);
 998 }
 999
1000 static void gtkrc_load()
1001 {
1002         gchar *path;
1003         gchar *pathl;
1004
1005         /* If a gtkrc file exists in the rc directory, add it to the
1006          * list of files to be parsed at the end of gtk_init() */
1007         path = g_build_filename(get_rc_dir(), "gtkrc", NULL);
1008         pathl = path_from_utf8(path);
1009         if (access(pathl, R_OK) == 0)
1010                 gtk_rc_add_default_file(pathl);
1011         g_free(pathl);
1012         g_free(path);
1013 }
1014
1015 static void exit_program_final()
1016 {
1017         LayoutWindow *lw = nullptr;
1018         GList *list;
1019         LayoutWindow *tmp_lw;
1020         gchar *archive_dir;
1021         GFile *archive_file;
1022
1023          /* make sure that external editors are loaded, we would save incomplete configuration otherwise */
1024         layout_editors_reload_finish();
1025
1026         remote_close(remote_connection);
1027
1028         collect_manager_flush();
1029
1030         /* Save the named windows */
1031         if (layout_window_list && layout_window_list->next)
1032                 {
1033                 list = layout_window_list;
1034                 while (list)
1035                         {
1036                         tmp_lw = static_cast<LayoutWindow *>(list->data);
1037                         if (!g_str_has_prefix(tmp_lw->options.id, "lw"))
1038                                 {
1039                                 save_layout(static_cast<LayoutWindow *>(list->data));
1040                                 }
1041                         list = list->next;
1042                         }
1043                 }
1044
1045         save_options(options);
1046         keys_save();
1047         accel_map_save();
1048
1049         if (layout_valid(&lw))
1050                 {
1051                 layout_free(lw);
1052                 }
1053
1054         /* Delete any files/folders in /tmp that have been created by the open archive function */
1055         archive_dir = g_build_filename(g_get_tmp_dir(), GQ_ARCHIVE_DIR, instance_identifier, NULL);
1056         if (isdir(archive_dir))
1057                 {
1058                 archive_file = g_file_new_for_path(archive_dir);
1059                 rmdir_recursive(archive_file, nullptr, nullptr);
1060                 g_free(archive_dir);
1061                 g_object_unref(archive_file);
1062                 }
1063
1064         /* If there are still sub-dirs created by another instance, this will fail
1065          * but that does not matter */
1066         archive_dir = g_build_filename(g_get_tmp_dir(), GQ_ARCHIVE_DIR, NULL);
1067         if (isdir(archive_dir))
1068                 {
1069                 archive_file = g_file_new_for_path(archive_dir);
1070                 g_file_delete(archive_file, nullptr, nullptr);
1071                 g_free(archive_dir);
1072                 g_object_unref(archive_file);
1073                 }
1074
1075         secure_close(command_line->ssi);
1076
1077         gtk_main_quit();
1078 }
1079
1080 static GenericDialog *exit_dialog = nullptr;
1081
1082 static void exit_confirm_cancel_cb(GenericDialog *gd, gpointer)
1083 {
1084         exit_dialog = nullptr;
1085         generic_dialog_close(gd);
1086 }
1087
1088 static void exit_confirm_exit_cb(GenericDialog *gd, gpointer)
1089 {
1090         exit_dialog = nullptr;
1091         generic_dialog_close(gd);
1092         exit_program_final();
1093 }
1094
1095 static gint exit_confirm_dlg()
1096 {
1097         GtkWidget *parent;
1098         LayoutWindow *lw;
1099         gchar *msg;
1100         GString *message;
1101
1102         if (exit_dialog)
1103                 {
1104                 gtk_window_present(GTK_WINDOW(exit_dialog->dialog));
1105                 return TRUE;
1106                 }
1107
1108         if (!collection_window_modified_exists() && (layout_window_count() == 1)) return FALSE;
1109
1110         parent = nullptr;
1111         lw = nullptr;
1112         if (layout_valid(&lw))
1113                 {
1114                 parent = lw->window;
1115                 }
1116
1117         msg = g_strdup_printf("%s - %s", GQ_APPNAME, _("exit"));
1118         exit_dialog = generic_dialog_new(msg,
1119                                 "exit", parent, FALSE,
1120                                 exit_confirm_cancel_cb, nullptr);
1121         g_free(msg);
1122         msg = g_strdup_printf(_("Quit %s"), GQ_APPNAME);
1123
1124         message = g_string_new(nullptr);
1125
1126         if (collection_window_modified_exists())
1127                 {
1128                 message = g_string_append(message, _("Collections have been modified.\n"));
1129                 }
1130
1131         if (layout_window_count() > 1)
1132                 {
1133                 g_string_append_printf(message, _("%d windows are open.\n\n"), layout_window_count());
1134                 }
1135
1136         message = g_string_append(message, _("Quit anyway?"));
1137
1138         generic_dialog_add_message(exit_dialog, GQ_ICON_DIALOG_QUESTION, msg, message->str, TRUE);
1139         g_free(msg);
1140         generic_dialog_add_button(exit_dialog, GQ_ICON_QUIT, _("Quit"), exit_confirm_exit_cb, TRUE);
1141
1142         gtk_widget_show(exit_dialog->dialog);
1143
1144         g_string_free(message, TRUE);
1145
1146         return TRUE;
1147 }
1148
1149 static void exit_program_write_metadata_cb(gint success, const gchar *, gpointer)
1150 {
1151         if (success) exit_program();
1152 }
1153
1154 void exit_program()
1155 {
1156         layout_image_full_screen_stop(nullptr);
1157
1158         if (metadata_write_queue_confirm(FALSE, exit_program_write_metadata_cb, nullptr)) return;
1159
1160         options->marks_save ? marks_save(TRUE) : marks_save(FALSE);
1161
1162         if (exit_confirm_dlg()) return;
1163
1164         exit_program_final();
1165 }
1166
1167 /* This code attempts to handle situation when a file mmaped by image_loader
1168  * or by exif loader is truncated by some other process.
1169  * This code is incorrect according to POSIX, because:
1170  *
1171  *   mmap is not async-signal-safe and thus may not be called from a signal handler
1172  *
1173  *   mmap must be called with a valid file descriptor.  POSIX requires that
1174  *   a fildes argument of -1 must cause mmap to return EBADF.
1175  *
1176  * See https://github.com/BestImageViewer/geeqie/issues/1052 for discussion of
1177  * an alternative approach.
1178  */
1179 /** @FIXME this probably needs some better ifdefs. Please report any compilation problems */
1180 /** @FIXME This section needs revising */
1181
1182 #pragma GCC diagnostic push
1183 #pragma GCC diagnostic ignored "-Wunused-function"
1184 #if defined(SIGBUS) && defined(SA_SIGINFO)
1185 static void sigbus_handler_cb_unused(int, siginfo_t *info, void *)
1186 {
1187         /*
1188          * @FIXME Design and implement a POSIX-acceptable approach,
1189          * after first documenting the sitations where SIGBUS occurs.
1190          * See https://github.com/BestImageViewer/geeqie/issues/1052 for discussion
1191          */
1192
1193         DEBUG_1("SIGBUS %p NOT HANDLED", info->si_addr);
1194         exit(EXIT_FAILURE);
1195 }
1196 #endif
1197
1198 static void setup_sigbus_handler_unused()
1199 {
1200 #if defined(SIGBUS) && defined(SA_SIGINFO)
1201         struct sigaction sigbus_action;
1202         sigfillset(&sigbus_action.sa_mask);
1203         sigbus_action.sa_sigaction = sigbus_handler_cb_unused;
1204         sigbus_action.sa_flags = SA_SIGINFO;
1205
1206         sigaction(SIGBUS, &sigbus_action, nullptr);
1207 #endif
1208 }
1209 #pragma GCC diagnostic pop
1210
1211 #if !HAVE_DEVELOPER
1212 static void setup_sig_handler()
1213 {
1214         struct sigaction sigsegv_action;
1215         sigfillset(&sigsegv_action.sa_mask);
1216         sigsegv_action.sa_sigaction = sig_handler_cb;
1217         sigsegv_action.sa_flags = SA_SIGINFO;
1218
1219         sigaction(SIGABRT, &sigsegv_action, nullptr);
1220         sigaction(SIGBUS, &sigsegv_action, nullptr);
1221         sigaction(SIGFPE, &sigsegv_action, nullptr);
1222         sigaction(SIGILL, &sigsegv_action, nullptr);
1223         sigaction(SIGIOT, &sigsegv_action, nullptr);
1224         sigaction(SIGSEGV, &sigsegv_action, nullptr);
1225 }
1226 #endif
1227
1228 static void set_theme_bg_color()
1229 {
1230         GdkRGBA bg_color;
1231         GdkRGBA theme_color;
1232         GtkStyleContext *style_context;
1233         GList *work;
1234         LayoutWindow *lw;
1235
1236         if (!options->image.use_custom_border_color)
1237                 {
1238                 work = layout_window_list;
1239                 lw = static_cast<LayoutWindow *>(work->data);
1240
1241                 style_context = gtk_widget_get_style_context(lw->window);
1242                 gtk_style_context_get_background_color(style_context, GTK_STATE_FLAG_NORMAL, &bg_color);
1243
1244                 theme_color.red = bg_color.red  ;
1245                 theme_color.green = bg_color.green  ;
1246                 theme_color.blue = bg_color.blue ;
1247
1248                 while (work)
1249                         {
1250                         lw = static_cast<LayoutWindow *>(work->data);
1251                         image_background_set_color(lw->image, &theme_color);
1252                         work = work->next;
1253                         }
1254                 }
1255
1256         view_window_colors_update();
1257 }
1258
1259 static gboolean theme_change_cb(GObject *, GParamSpec *, gpointer)
1260 {
1261         set_theme_bg_color();
1262
1263         return FALSE;
1264 }
1265
1266 /**
1267  * @brief Set up the application paths
1268  *
1269  * This function is required for use of AppImages. AppImages are
1270  * relocatable, and therefore cannot use fixed paths to various components.
1271  * These paths were originally #defines created during compilation.
1272  * They are now variables, all defined relative to one level above the
1273  * directory that the executable is run from.
1274  */
1275 static void create_application_paths()
1276 {
1277         gchar *dirname;
1278         gint length;
1279         gchar *path;
1280
1281         length = wai_getExecutablePath(nullptr, 0, nullptr);
1282         path = static_cast<gchar *>(malloc(length + 1));
1283         wai_getExecutablePath(path, length, nullptr);
1284         path[length] = '\0';
1285
1286         gq_executable_path = g_strdup(path);
1287         dirname = g_path_get_dirname(gq_executable_path);
1288         gq_prefix = g_path_get_dirname(dirname);
1289
1290         gq_localedir = g_build_filename(gq_prefix, GQ_LOCALEDIR, NULL);
1291         gq_helpdir = g_build_filename(gq_prefix, GQ_HELPDIR, NULL);
1292         gq_htmldir = g_build_filename(gq_prefix, GQ_HTMLDIR, NULL);
1293         gq_appdir = g_build_filename(gq_prefix, GQ_APPDIR, NULL);
1294         gq_bindir = g_build_filename(gq_prefix, GQ_BINDIR, NULL);
1295         desktop_file_template = g_build_filename(gq_appdir, "org.geeqie.template.desktop", NULL);
1296
1297         g_free(dirname);
1298         g_free(path);
1299 }
1300
1301 gint main(gint argc, gchar *argv[])
1302 {
1303         CollectionData *cd = nullptr;
1304         CollectionData *first_collection = nullptr;
1305         gboolean disable_clutter = FALSE;
1306         gboolean single_dir = TRUE;
1307         gchar *buf;
1308         GdkScreen *screen;
1309         GtkCssProvider *provider;
1310         GtkSettings *default_settings;
1311         LayoutWindow *lw;
1312
1313         gdk_set_allowed_backends("x11,*");
1314
1315         gdk_threads_init();
1316         gdk_threads_enter();
1317
1318         /* seg. fault handler */
1319 #if HAVE_DEVELOPER
1320         backward::SignalHandling sh{};
1321 #else
1322         setup_sig_handler();
1323 #endif
1324
1325         /* init execution time counter (debug only) */
1326         init_exec_time();
1327
1328         create_application_paths();
1329
1330         /* setup locale, i18n */
1331         setlocale(LC_ALL, "");
1332
1333 #ifdef ENABLE_NLS
1334         bindtextdomain(PACKAGE, gq_localedir);
1335         bind_textdomain_codeset(PACKAGE, "UTF-8");
1336         textdomain(PACKAGE);
1337 #endif
1338
1339         exif_init();
1340
1341 #if HAVE_LUA
1342         lua_init();
1343 #endif
1344
1345         /* setup random seed for random slideshow */
1346         srand(time(nullptr));
1347
1348 #if 0
1349         /* See later comment; this handler leads to UB. */
1350         setup_sigbus_handler();
1351 #endif
1352
1353         /* register global notify functions */
1354         file_data_register_notify_func(cache_notify_cb, nullptr, NOTIFY_PRIORITY_HIGH);
1355         file_data_register_notify_func(thumb_notify_cb, nullptr, NOTIFY_PRIORITY_HIGH);
1356         file_data_register_notify_func(histogram_notify_cb, nullptr, NOTIFY_PRIORITY_HIGH);
1357         file_data_register_notify_func(collect_manager_notify_cb, nullptr, NOTIFY_PRIORITY_LOW);
1358         file_data_register_notify_func(metadata_notify_cb, nullptr, NOTIFY_PRIORITY_LOW);
1359
1360
1361         gtkrc_load();
1362
1363         parse_command_line_for_debug_option(argc, argv);
1364         DEBUG_1("%s main: gtk_init", get_exec_time());
1365 #if HAVE_CLUTTER
1366         if (parse_command_line_for_clutter_option(argc, argv))
1367                 {
1368                 disable_clutter = TRUE;
1369                 gtk_init(&argc, &argv);
1370                 }
1371         else
1372                 {
1373                 if (gtk_clutter_init(&argc, &argv) != CLUTTER_INIT_SUCCESS)
1374                         {
1375                         log_printf("Can't initialize clutter-gtk.\nStart Geeqie with the option \"geeqie --disable-clutter\"");
1376                         runcmd("zenity --error --title=\"Geeqie\" --text \"Can't initialize clutter-gtk.\n\nStart Geeqie with the option:\n geeqie --disable-clutter\" --width=300");
1377                         exit(1);
1378                         }
1379                 }
1380 #else
1381         gtk_init(&argc, &argv);
1382 #endif
1383
1384         if (gtk_major_version < GTK_MAJOR_VERSION ||
1385             (gtk_major_version == GTK_MAJOR_VERSION && gtk_minor_version < GTK_MINOR_VERSION) )
1386                 {
1387                 log_printf("!!! This is a friendly warning.\n");
1388                 log_printf("!!! The version of GTK+ in use now is older than when %s was compiled.\n", GQ_APPNAME);
1389                 log_printf("!!!  compiled with GTK+-%d.%d\n", GTK_MAJOR_VERSION, GTK_MINOR_VERSION);
1390                 log_printf("!!!   running with GTK+-%d.%d\n", gtk_major_version, gtk_minor_version);
1391                 log_printf("!!! %s may quit unexpectedly with a relocation error.\n", GQ_APPNAME);
1392                 }
1393
1394         DEBUG_1("%s main: pixbuf_inline_register_stock_icons", get_exec_time());
1395         gtk_icon_theme_add_resource_path(gtk_icon_theme_get_default(), GQ_RESOURCE_PATH_ICONS);
1396         pixbuf_inline_register_stock_icons();
1397
1398         DEBUG_1("%s main: setting default options before commandline handling", get_exec_time());
1399         options = init_options(nullptr);
1400         setup_default_options(options);
1401         if (disable_clutter)
1402                 {
1403                 options->disable_gpu = TRUE;
1404                 }
1405
1406         /* Generate a unique identifier used by the open archive function */
1407         instance_identifier = g_strdup_printf("%x", g_random_int());
1408
1409         DEBUG_1("%s main: mkdir_if_not_exists", get_exec_time());
1410         /* these functions don't depend on config file */
1411         mkdir_if_not_exists(get_rc_dir());
1412         mkdir_if_not_exists(get_collections_dir());
1413         mkdir_if_not_exists(get_thumbnails_cache_dir());
1414         mkdir_if_not_exists(get_metadata_cache_dir());
1415         mkdir_if_not_exists(get_window_layouts_dir());
1416
1417         setup_env_path();
1418
1419         screen = gdk_screen_get_default();
1420         provider = gtk_css_provider_new();
1421         gtk_css_provider_load_from_resource(provider, GQ_RESOURCE_PATH_UI "/custom.css");
1422         gtk_style_context_add_provider_for_screen(screen, GTK_STYLE_PROVIDER(provider), GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
1423
1424         if (parse_command_line_for_cache_maintenance_option(argc, argv))
1425                 {
1426                 process_command_line_for_cache_maintenance_option(argc, argv);
1427                 }
1428         else
1429                 {
1430                 DEBUG_1("%s main: parse_command_line", get_exec_time());
1431                 parse_command_line(argc, argv);
1432
1433                 keys_load();
1434                 accel_map_load();
1435
1436                 /* restore session from the config file */
1437
1438
1439                 DEBUG_1("%s main: load_options", get_exec_time());
1440                 if (!load_options(options))
1441                         {
1442                         /* load_options calls these functions after it parses global options, we have to call it here if it fails */
1443                         filter_add_defaults();
1444                         filter_rebuild();
1445                         }
1446
1447         #if HAVE_CLUTTER
1448         /** @FIXME For the background of this see:
1449          * https://github.com/BestImageViewer/geeqie/issues/397
1450          * The feature CLUTTER_FEATURE_SWAP_EVENTS indictates if the
1451          * system is liable to exhibit this problem.
1452          * The user is provided with an override in Preferences/Behavior
1453          */
1454                 if (!options->override_disable_gpu && !options->disable_gpu)
1455                         {
1456                         DEBUG_1("CLUTTER_FEATURE_SWAP_EVENTS %d",clutter_feature_available(CLUTTER_FEATURE_SWAP_EVENTS));
1457                         if (clutter_feature_available(CLUTTER_FEATURE_SWAP_EVENTS) != 0)
1458                                 {
1459                                 options->disable_gpu = TRUE;
1460                                 }
1461                         }
1462         #endif
1463
1464                 /* handle missing config file and commandline additions*/
1465                 if (!layout_window_list)
1466                         {
1467                         /* broken or no config file or no <layout> section */
1468                         layout_new_from_default();
1469                         }
1470
1471                 layout_editors_reload_start();
1472
1473                 /* If no --list option, open a separate collection window for each
1474                  * .gqv file on the command line
1475                  */
1476                 if (command_line->collection_list && !command_line->startup_command_line_collection)
1477                         {
1478                         GList *work;
1479
1480                         work = command_line->collection_list;
1481                         while (work)
1482                                 {
1483                                 CollectWindow *cw;
1484                                 const gchar *path;
1485
1486                                 path = static_cast<const gchar *>(work->data);
1487                                 work = work->next;
1488
1489                                 cw = collection_window_new(path);
1490                                 if (!first_collection && cw) first_collection = cw->cd;
1491                                 }
1492                         }
1493
1494                 if (command_line->log_file)
1495                         {
1496                         gchar *pathl;
1497                         gchar *path = g_strdup(command_line->log_file);
1498
1499                         pathl = path_from_utf8(path);
1500                         command_line->ssi = secure_open(pathl);
1501                         }
1502
1503                 /* If there is a files list on the command line and no --list option,
1504                  * check if they are all in the same folder
1505                  */
1506                 if (command_line->cmd_list && !(command_line->startup_command_line_collection))
1507                         {
1508                         GList *work;
1509                         gchar *path = nullptr;
1510
1511                         work = command_line->cmd_list;
1512
1513                         while (work && single_dir)
1514                                 {
1515                                 gchar *dirname;
1516
1517                                 dirname = g_path_get_dirname(static_cast<const gchar *>(work->data));
1518                                 if (!path)
1519                                         {
1520                                         path = g_strdup(dirname);
1521                                         }
1522                                 else
1523                                         {
1524                                         if (g_strcmp0(path, dirname) != 0)
1525                                                 {
1526                                                 single_dir = FALSE;
1527                                                 }
1528                                         }
1529                                 g_free(dirname);
1530                                 work = work->next;
1531                                 }
1532                         g_free(path);
1533                         }
1534
1535                 /* Files from multiple folders, or --list option given
1536                  * then open an unnamed collection and insert all files
1537                  */
1538                 if ((command_line->cmd_list && !single_dir) || (command_line->startup_command_line_collection && command_line->cmd_list))
1539                         {
1540                         GList *work;
1541                         CollectWindow *cw;
1542
1543                         cw = collection_window_new(nullptr);
1544                         cd = cw->cd;
1545
1546                         collection_path_changed(cd);
1547
1548                         work = command_line->cmd_list;
1549                         while (work)
1550                                 {
1551                                 FileData *fd;
1552
1553                                 fd = file_data_new_simple(static_cast<const gchar *>(work->data));
1554                                 collection_add(cd, fd, FALSE);
1555                                 file_data_unref(fd);
1556                                 work = work->next;
1557                                 }
1558
1559                         work = command_line->collection_list;
1560                         while (work)
1561                                 {
1562                                 collection_load(cd, static_cast<gchar *>(work->data), COLLECTION_LOAD_APPEND);
1563                                 work = work->next;
1564                                 }
1565
1566                         if (cd->list) layout_image_set_collection(nullptr, cd, static_cast<CollectInfo *>(cd->list->data));
1567
1568                         /* mem leak, we never unref this collection when !startup_command_line_collection
1569                          * (the image view of the main window does not hold a ref to the collection)
1570                          * this is sort of unavoidable, for if it did hold a ref, next/back
1571                          * may not work as expected when closing collection windows.
1572                          *
1573                          * collection_unref(cd);
1574                          */
1575
1576                         }
1577                 else if (first_collection)
1578                         {
1579                         layout_image_set_collection(nullptr, first_collection,
1580                                                     collection_get_first(first_collection));
1581                         }
1582
1583                 /* If the files on the command line are from one folder, select those files
1584                  * unless it is a command line collection - then leave focus on collection window
1585                  */
1586                 lw = nullptr;
1587                 layout_valid(&lw);
1588
1589                 if (single_dir && command_line->cmd_list && !command_line->startup_command_line_collection)
1590                         {
1591                         GList *work;
1592                         GList *selected;
1593                         FileData *fd;
1594
1595                         selected = nullptr;
1596                         work = command_line->cmd_list;
1597                         while (work)
1598                                 {
1599                                 fd = file_data_new_simple(static_cast<gchar *>(work->data));
1600                                 selected = g_list_append(selected, fd);
1601                                 file_data_unref(fd);
1602                                 work = work->next;
1603                                 }
1604                         layout_select_list(lw, selected);
1605                         }
1606
1607                 buf = g_build_filename(get_rc_dir(), ".command", NULL);
1608                 remote_connection = remote_server_init(buf, cd);
1609                 g_free(buf);
1610
1611                 marks_load();
1612
1613                 default_settings = gtk_settings_get_default();
1614                 g_signal_connect(default_settings, "notify::gtk-theme-name", G_CALLBACK(theme_change_cb), NULL);
1615                 set_theme_bg_color();
1616                 }
1617
1618         /* Show a fade-out notification window if the server has a newer AppImage version */
1619         if (options->appimage_notifications)
1620                 {
1621                 if (g_getenv("APPDIR") && strstr(g_getenv("APPDIR"), "/tmp/.mount_Geeqie"))
1622                         {
1623                         appimage_notification();
1624                         }
1625                 else if (g_strstr_len(gq_executable_path, -1, "AppRun"))
1626                         {
1627                         /* Probably running an extracted AppImage */
1628                         appimage_notification();
1629                         }
1630                 }
1631
1632         DEBUG_1("%s main: gtk_main", get_exec_time());
1633         gtk_main();
1634
1635         gdk_threads_leave();
1636         return 0;
1637 }
1638 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */