Clean up some compile warnings and errors
[geeqie.git] / src / main.c
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 <gdk/gdkkeysyms.h> /* for keyboard values */
23
24 #include <signal.h>
25 #include <sys/mman.h>
26
27 #include <math.h>
28 #ifdef G_OS_UNIX
29 #include <pwd.h>
30 #endif
31 #include <locale.h>
32
33 #include "main.h"
34
35 #include "cache.h"
36 #include "collect.h"
37 #include "collect-io.h"
38 #include "filedata.h"
39 #include "filefilter.h"
40 #include "history_list.h"
41 #include "image-overlay.h"
42 #include "layout.h"
43 #include "layout_image.h"
44 #include "layout_util.h"
45 #include "misc.h"
46 #include "options.h"
47 #include "rcfile.h"
48 #include "remote.h"
49 #include "secure_save.h"
50 #include "similar.h"
51 #include "ui_fileops.h"
52 #include "ui_utildlg.h"
53 #include "cache_maint.h"
54 #include "thumb.h"
55 #include "metadata.h"
56 #include "editors.h"
57 #include "exif.h"
58 #include "histogram.h"
59 #include "pixbuf_util.h"
60 #include "glua.h"
61
62 #ifdef HAVE_CLUTTER
63 #include <clutter-gtk/clutter-gtk.h>
64 #endif
65
66 #ifdef HAVE_GTHREAD
67 /** @FIXME see below */
68 #include <X11/Xlib.h>
69 #endif
70
71 /**
72  * @page diagrams Diagrams
73  * @section options_overview Options Overview
74  * 
75  * #_ConfOptions  #_LayoutOptions
76  * 
77  * @startuml
78  * 
79  * object options.h
80  * object typedefs.h
81  * 
82  * options.h : ConfOptions
83  * options.h : \n
84  * options.h : Options applicable to **all** Layout Windows
85  * options.h : These are in the <global> section of geeqierc.xml
86  * options.h : Available to all modules via the global variable **options**
87  * typedefs.h : LayoutOptions
88  * typedefs.h : \n
89  * typedefs.h : Options applicable to **each** Layout Window
90  * typedefs.h : These are in the <layout> section of geeqierc.xml
91  * typedefs.h : There is one <layout> section for each Layout Window displayed
92  * typedefs.h : Available via **<layout_window>->options**
93  * 
94  * @enduml
95  */
96
97 /**
98  * @page diagrams Diagrams
99  * @section options_diagrams_main Options - New Window From Main
100  * #main  
101  * #init_options  
102  * #layout_new_from_default  
103  * #load_config_from_file  
104  * #load_options  
105  * #setup_default_options
106  * 
107  * @startuml
108  * group main.c
109  * start
110  * group options.c
111  * : **init_options()**
112  * 
113  * Set **options** = ConfOptions from hard-coded init values;
114  * end group
115  * 
116  * group options.c
117  * : **setup_default_options()**
118  * 
119  * set hard-coded ConfOptions:
120  * 
121  * bookmarks:
122  * * dot dir
123  * * Home
124  * * Desktop
125  * * Collections
126  * safe delete path
127  * OSD template string
128  * sidecar extensions
129  * shell path and options
130  * marks tooltips
131  * help search engine;
132  * end group
133  * 
134  * if (first entry
135  * or
136  * --new-instance) then (yes)
137  * group options.c
138  * : **load_options()**
139  * ;
140  * 
141  * split
142  * : GQ_SYSTEM_WIDE_DIR
143  * /geeqierc.xml;
144  * split again
145  * : XDG_CONFIG_HOME
146  * /geeqierc.xml;
147  * split again
148  * : HOME
149  * /.geeqie/geeqierc.xml;
150  * end split
151  * 
152  * group rcfile.c
153  * : **load_config_from_file()**
154  * 
155  * set  **options** from file
156  * and all <layout window>->options  in file;
157  * end group
158  * 
159  * end group
160  * 
161  * if (broken config. file
162  * or no config file
163  * or no layout section loaded
164  * (i.e. session not saved)) then (yes)
165  * group layout.c
166  * : **layout_new_from_default()**;
167  * if (default.xml exists) then (yes)
168  * : Load user-saved
169  *  layout_window default options
170  *  from default.xml file;
171  * else (no)
172  * : Load hard-coded
173  *  layout_window default options;
174  * endif
175  * end group
176  * endif
177  * 
178  * else (no)
179  * : Send --new-window request to remote
180  *  No return to this point
181  *  This instance terminates;
182  * stop
183  * endif
184  * 
185  * : Enter gtk main loop;
186  * 
187  * end group
188  * @enduml
189  */
190
191 /**
192  * @page diagrams Diagrams
193  * @section options_diagrams_remote Options - New Window From Remote
194  * #layout_new_from_default  
195  * @startuml
196  * 
197  * group remote.c
198  * start
199  * group layout.c
200  * : **layout_new_from_default()**;
201  * if (default.xml exists) then (yes)
202  * : Load user-saved
203  *  layout_window default options
204  *  from default.xml file;
205  * else (no)
206  * : Load hard-coded
207  *  layout_window default options;
208  * endif
209  * end group
210  * : set path from PWD;
211  * @enduml
212  */
213
214 /**
215  * @page diagrams Diagrams
216  * @section options_diagrams_menu Options - New Window From Menu
217  * #layout_menu_new_window_cb  
218  * #layout_menu_window_from_current_cb  
219  * #layout_new_from_default  
220  * @startuml
221  * 
222  * group layout_util.c
223  * start
224  * 
225  * split
226  * : default;
227  * group layout.c
228  * : **layout_new_from_default()**;
229  * if (default.xml exists) then (yes)
230  * : Load user-saved
231  *  layout_window default options
232  *  from default.xml file;
233  * else (no)
234  * : Load hard-coded
235  *  layout_window default options;
236  * endif
237  * end group
238  * 
239  * split again
240  * : from current
241  * 
242  * **layout_menu_window_from_current_cb()**
243  * copy layout_window options
244  * from current window;
245  * 
246  * split again
247  * : named
248  * 
249  * **layout_menu_new_window_cb()**
250  * load layout_window options
251  * from saved xml file list;
252  * end split
253  * 
254  * end group
255  * @enduml
256  */
257   /**
258   * @file
259   * @ref options_overview Options Overview
260   */
261
262
263 gboolean thumb_format_changed = FALSE;
264 static RemoteConnection *remote_connection = NULL;
265
266 gchar *gq_prefix;
267 gchar *gq_localedir;
268 gchar *gq_helpdir;
269 gchar *gq_htmldir;
270 gchar *gq_app_dir;
271 gchar *gq_bin_dir;
272 gchar *desktop_file_template;
273
274 /*
275  *-----------------------------------------------------------------------------
276  * keyboard functions
277  *-----------------------------------------------------------------------------
278  */
279
280 void keyboard_scroll_calc(gint *x, gint *y, GdkEventKey *event)
281 {
282         static gint delta = 0;
283         static guint32 time_old = 0;
284         static guint keyval_old = 0;
285
286         if (event->state & GDK_CONTROL_MASK)
287                 {
288                 if (*x < 0) *x = G_MININT / 2;
289                 if (*x > 0) *x = G_MAXINT / 2;
290                 if (*y < 0) *y = G_MININT / 2;
291                 if (*y > 0) *y = G_MAXINT / 2;
292
293                 return;
294                 }
295
296         if (options->progressive_key_scrolling)
297                 {
298                 guint32 time_diff;
299
300                 time_diff = event->time - time_old;
301
302                 /* key pressed within 125ms ? (1/8 second) */
303                 if (time_diff > 125 || event->keyval != keyval_old) delta = 0;
304
305                 time_old = event->time;
306                 keyval_old = event->keyval;
307
308                 delta += 2;
309                 }
310         else
311                 {
312                 delta = 8;
313                 }
314
315         *x = *x * delta * options->keyboard_scroll_step;
316         *y = *y * delta * options->keyboard_scroll_step;
317 }
318
319
320
321 /*
322  *-----------------------------------------------------------------------------
323  * command line parser (private) hehe, who needs popt anyway?
324  *-----------------------------------------------------------------------------
325  */
326
327 static void parse_command_line_add_file(const gchar *file_path, gchar **path, gchar **file,
328                                         GList **list, GList **collection_list)
329 {
330         gchar *path_parsed;
331
332         path_parsed = g_strdup(file_path);
333         parse_out_relatives(path_parsed);
334
335         if (file_extension_match(path_parsed, GQ_COLLECTION_EXT))
336                 {
337                 *collection_list = g_list_append(*collection_list, path_parsed);
338                 }
339         else
340                 {
341                 if (!*path) *path = remove_level_from_path(path_parsed);
342                 if (!*file) *file = g_strdup(path_parsed);
343                 *list = g_list_prepend(*list, path_parsed);
344                 }
345 }
346
347 static void parse_command_line_add_dir(const gchar *dir, gchar **path, gchar **file,
348                                        GList **list)
349 {
350 #if 0
351         /* This is broken because file filter is not initialized yet.
352         */
353         GList *files;
354         gchar *path_parsed;
355         FileData *dir_fd;
356
357         path_parsed = g_strdup(dir);
358         parse_out_relatives(path_parsed);
359         dir_fd = file_data_new_dir(path_parsed);
360
361
362         if (filelist_read(dir_fd, &files, NULL))
363                 {
364                 GList *work;
365
366                 files = filelist_filter(files, FALSE);
367                 files = filelist_sort_path(files);
368
369                 work = files;
370                 while (work)
371                         {
372                         FileData *fd = work->data;
373                         if (!*path) *path = remove_level_from_path(fd->path);
374                         if (!*file) *file = g_strdup(fd->path);
375                         *list = g_list_prepend(*list, fd);
376
377                         work = work->next;
378                         }
379
380                 g_list_free(files);
381                 }
382
383         g_free(path_parsed);
384         file_data_unref(dir_fd);
385 #else
386         DEBUG_1("multiple directories specified, ignoring: %s", dir);
387 #endif
388 }
389
390 static void parse_command_line_process_dir(const gchar *dir, gchar **path, gchar **file,
391                                            GList **list, gchar **first_dir)
392 {
393
394         if (!*list && !*first_dir)
395                 {
396                 *first_dir = g_strdup(dir);
397                 }
398         else
399                 {
400                 if (*first_dir)
401                         {
402                         parse_command_line_add_dir(*first_dir, path, file, list);
403                         g_free(*first_dir);
404                         *first_dir = NULL;
405                         }
406                 parse_command_line_add_dir(dir, path, file, list);
407                 }
408 }
409
410 static void parse_command_line_process_file(const gchar *file_path, gchar **path, gchar **file,
411                                             GList **list, GList **collection_list, gchar **first_dir)
412 {
413
414         if (*first_dir)
415                 {
416                 parse_command_line_add_dir(*first_dir, path, file, list);
417                 g_free(*first_dir);
418                 *first_dir = NULL;
419                 }
420         parse_command_line_add_file(file_path, path, file, list, collection_list);
421 }
422
423 static void parse_command_line(gint argc, gchar *argv[])
424 {
425         GList *list = NULL;
426         GList *remote_list = NULL;
427         GList *remote_errors = NULL;
428         gboolean remote_do = FALSE;
429         gchar *first_dir = NULL;
430         gchar *app_lock;
431         gchar *pwd;
432         gchar *current_dir;
433         gchar *geometry = NULL;
434         GtkWidget *dialog_warning;
435         GString *command_line_errors = g_string_new(NULL);
436
437         command_line = g_new0(CommandLine, 1);
438
439         command_line->argc = argc;
440         command_line->argv = argv;
441         command_line->regexp = NULL;
442
443         if (argc > 1)
444                 {
445                 gint i;
446                 gchar *base_dir = get_current_dir();
447                 i = 1;
448                 while (i < argc)
449                         {
450                         gchar *cmd_line = path_to_utf8(argv[i]);
451                         gchar *cmd_all = g_build_filename(base_dir, cmd_line, NULL);
452
453                         if (cmd_line[0] == G_DIR_SEPARATOR && isdir(cmd_line))
454                                 {
455                                 parse_command_line_process_dir(cmd_line, &command_line->path, &command_line->file, &list, &first_dir);
456                                 }
457                         else if (isdir(cmd_all))
458                                 {
459                                 parse_command_line_process_dir(cmd_all, &command_line->path, &command_line->file, &list, &first_dir);
460                                 }
461                         else if (cmd_line[0] == G_DIR_SEPARATOR && isfile(cmd_line))
462                                 {
463                                 parse_command_line_process_file(cmd_line, &command_line->path, &command_line->file,
464                                                                 &list, &command_line->collection_list, &first_dir);
465                                 }
466                         else if (isfile(cmd_all))
467                                 {
468                                 parse_command_line_process_file(cmd_all, &command_line->path, &command_line->file,
469                                                                 &list, &command_line->collection_list, &first_dir);
470                                 }
471                         else if (download_web_file(cmd_line, FALSE, NULL))
472                                 {
473                                 }
474                         else if (is_collection(cmd_line))
475                                 {
476                                 gchar *path = NULL;
477
478                                 path = collection_path(cmd_line);
479                                 parse_command_line_process_file(path, &command_line->path, &command_line->file,
480                                                                 &list, &command_line->collection_list, &first_dir);
481                                 g_free(path);
482                                 }
483                         else if (strncmp(cmd_line, "--debug", 7) == 0 && (cmd_line[7] == '\0' || cmd_line[7] == '='))
484                                 {
485                                 /* do nothing but do not produce warnings */
486                                 }
487                         else if (strncmp(cmd_line, "--disable-clutter", 17) == 0 && (cmd_line[17] == '\0'))
488                                 {
489                                 /* do nothing but do not produce warnings */
490                                 }
491                         else if (strcmp(cmd_line, "+t") == 0 ||
492                                  strcmp(cmd_line, "--with-tools") == 0)
493                                 {
494                                 command_line->tools_show = TRUE;
495
496                                 remote_list = g_list_append(remote_list, "+t");
497                                 }
498                         else if (strcmp(cmd_line, "-t") == 0 ||
499                                  strcmp(cmd_line, "--without-tools") == 0)
500                                 {
501                                 command_line->tools_hide = TRUE;
502
503                                 remote_list = g_list_append(remote_list, "-t");
504                                 }
505                         else if (strcmp(cmd_line, "-f") == 0 ||
506                                  strcmp(cmd_line, "--fullscreen") == 0)
507                                 {
508                                 command_line->startup_full_screen = TRUE;
509                                 }
510                         else if (strcmp(cmd_line, "-s") == 0 ||
511                                  strcmp(cmd_line, "--slideshow") == 0)
512                                 {
513                                 command_line->startup_in_slideshow = TRUE;
514                                 }
515                         else if (strcmp(cmd_line, "-l") == 0 ||
516                                  strcmp(cmd_line, "--list") == 0)
517                                 {
518                                 command_line->startup_command_line_collection = TRUE;
519                                 }
520                         else if (strncmp(cmd_line, "--geometry=", 11) == 0)
521                                 {
522                                 if (!command_line->geometry) command_line->geometry = g_strdup(cmd_line + 11);
523                                 }
524                         else if (strcmp(cmd_line, "-r") == 0 ||
525                                  strcmp(cmd_line, "--remote") == 0)
526                                 {
527                                 if (!remote_do)
528                                         {
529                                         remote_do = TRUE;
530                                         remote_list = remote_build_list(remote_list, argc - i, &argv[i], &remote_errors);
531                                         }
532                                 }
533                         else if ((strcmp(cmd_line, "+w") == 0) ||
534                                                 strcmp(cmd_line, "--show-log-window") == 0)
535                                 {
536                                 command_line->log_window_show = TRUE;
537                                 }
538                         else if (strncmp(cmd_line, "-o:", 3) == 0)
539                                 {
540                                 command_line->log_file = g_strdup(cmd_line + 3);
541                                 }
542                         else if (strncmp(cmd_line, "--log-file:", 11) == 0)
543                                 {
544                                 command_line->log_file = g_strdup(cmd_line + 11);
545                                 }
546                         else if (strncmp(cmd_line, "-g:", 3) == 0)
547                                 {
548                                 set_regexp(g_strdup(cmd_line+3));
549                                 }
550                         else if (strncmp(cmd_line, "-grep:", 6) == 0)
551                                 {
552                                 set_regexp(g_strdup(cmd_line+3));
553                                 }
554                         else if (strncmp(cmd_line, "-n", 2) == 0)
555                                 {
556                                 command_line->new_instance = TRUE;
557                                 }
558                         else if (strncmp(cmd_line, "--new-instance", 14) == 0)
559                                 {
560                                 command_line->new_instance = TRUE;
561                                 }
562                         else if (strcmp(cmd_line, "-rh") == 0 ||
563                                  strcmp(cmd_line, "--remote-help") == 0)
564                                 {
565                                 remote_help();
566                                 exit(0);
567                                 }
568                         else if (strcmp(cmd_line, "--blank") == 0)
569                                 {
570                                 command_line->startup_blank = TRUE;
571                                 }
572                         else if (strcmp(cmd_line, "-v") == 0 ||
573                                  strcmp(cmd_line, "--version") == 0)
574                                 {
575                                 printf_term(FALSE, "%s %s GTK%d\n", GQ_APPNAME, VERSION, gtk_major_version);
576                                 exit(0);
577                                 }
578                         else if (strcmp(cmd_line, "--alternate") == 0)
579                                 {
580                                 /* enable faster experimental algorithm */
581                                 log_printf("Alternate similarity algorithm enabled\n");
582                                 image_sim_alternate_set(TRUE);
583                                 }
584                         else if (strcmp(cmd_line, "-h") == 0 ||
585                                  strcmp(cmd_line, "--help") == 0)
586                                 {
587                                 printf_term(FALSE, "%s %s\n", GQ_APPNAME, VERSION);
588                                 printf_term(FALSE, _("Usage: %s [options] [path]\n\n"), GQ_APPNAME_LC);
589                                 print_term(FALSE, _("valid options are:\n"));
590                                 print_term(FALSE, _("  +t, --with-tools                 force show of tools\n"));
591                                 print_term(FALSE, _("  -t, --without-tools              force hide of tools\n"));
592                                 print_term(FALSE, _("  -f, --fullscreen                 start in full screen mode\n"));
593                                 print_term(FALSE, _("  -s, --slideshow                  start in slideshow mode\n"));
594                                 print_term(FALSE, _("  -l, --list [files] [collections] open collection window for command line\n"));
595                                 print_term(FALSE, _("      --blank                      start with blank file list\n"));
596                                 print_term(FALSE, _("      --geometry=XxY+XOFF+YOFF     set main window location\n"));
597                                 print_term(FALSE, _("  -n, --new-instance               open a new instance of Geeqie\n"));
598                                 print_term(FALSE, _("  -r, --remote                     send following commands to open window\n"));
599                                 print_term(FALSE, _("  -rh,--remote-help                print remote command list\n"));
600 #ifdef DEBUG
601                                 print_term(FALSE, _("      --debug[=level]              turn on debug output\n"));
602                                 print_term(FALSE, _("  -g:<regexp>, --grep:<regexp>     filter debug output\n"));
603 #endif
604                                 print_term(FALSE, _("  +w, --show-log-window            show log window\n"));
605                                 print_term(FALSE, _("  -o:<file>, --log-file:<file>     save log data to file\n"));
606                                 print_term(FALSE, _("  -v, --version                    print version info\n"));
607                                 print_term(FALSE, _("  -h, --help                       show this message\n"));
608                                 print_term(FALSE, _("      --disable-clutter            disable use of Clutter library (i.e. GPU accel.)\n\n"));
609
610 #if 0
611                                 /* these options are not officially supported!
612                                  * only for testing new features, no need to translate them */
613                                 print_term(FALSE, "  --alternate                use alternate similarity algorithm\n");
614 #endif
615
616
617                                 exit(0);
618                                 }
619                         else if (!remote_do)
620                                 {
621                                 command_line_errors = g_string_append(command_line_errors, cmd_line);
622                                 command_line_errors = g_string_append(command_line_errors, "\n");
623                                 }
624
625                         g_free(cmd_all);
626                         g_free(cmd_line);
627                         i++;
628                         }
629
630                 if (command_line_errors->len > 0)
631                         {
632                         dialog_warning = gtk_message_dialog_new(NULL, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", "Invalid parameter(s):");
633                         gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog_warning), "%s", command_line_errors->str);
634                         gtk_window_set_title(GTK_WINDOW(dialog_warning), GQ_APPNAME);
635                         gtk_window_set_keep_above(GTK_WINDOW(dialog_warning), TRUE);
636                         gtk_dialog_run(GTK_DIALOG(dialog_warning));
637                         gtk_widget_destroy(dialog_warning);
638                         g_string_free(command_line_errors, TRUE);
639
640                         exit(EXIT_FAILURE);
641                         }
642
643                 g_free(base_dir);
644                 parse_out_relatives(command_line->path);
645                 parse_out_relatives(command_line->file);
646                 }
647
648         list = g_list_reverse(list);
649
650         if (!command_line->path && first_dir)
651                 {
652                 command_line->path = first_dir;
653                 first_dir = NULL;
654
655                 parse_out_relatives(command_line->path);
656                 }
657         g_free(first_dir);
658
659         if (!command_line->new_instance)
660                 {
661                 /* If Geeqie is already running, prevent a second instance
662                  * from being started. Open a new window instead.
663                  */
664                 app_lock = g_build_filename(get_rc_dir(), ".command", NULL);
665                 if (remote_server_exists(app_lock) && !remote_do)
666                         {
667                         remote_do = TRUE;
668                         if (command_line->geometry)
669                                 {
670                                 geometry = g_strdup_printf("--geometry=%s", command_line->geometry);
671                                 remote_list = g_list_prepend(remote_list, geometry);
672                                 }
673                         remote_list = g_list_prepend(remote_list, "--new-window");
674                         }
675                 g_free(app_lock);
676                 }
677
678         if (remote_do)
679                 {
680                 if (remote_errors)
681                         {
682                         GList *work = remote_errors;
683
684                         while (work)
685                                 {
686                                 gchar *opt = work->data;
687
688                                 command_line_errors = g_string_append(command_line_errors, opt);
689                                 command_line_errors = g_string_append(command_line_errors, "\n");
690                                 work = work->next;
691                                 }
692
693                         dialog_warning = gtk_message_dialog_new(NULL, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", "Invalid parameter(s):");
694                         gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog_warning), "%s", command_line_errors->str);
695                         gtk_window_set_title(GTK_WINDOW(dialog_warning), GQ_APPNAME);
696                         gtk_window_set_keep_above(GTK_WINDOW(dialog_warning), TRUE);
697                         gtk_dialog_run(GTK_DIALOG(dialog_warning));
698                         gtk_widget_destroy(dialog_warning);
699                         g_string_free(command_line_errors, TRUE);
700
701                         exit(EXIT_FAILURE);
702                         }
703
704                 /* prepend the current dir the remote command was made from,
705                  * for use by any remote command that needs it
706                  */
707                 current_dir = g_get_current_dir();
708                 pwd = g_strconcat("--PWD:", current_dir, NULL);
709                 remote_list = g_list_prepend(remote_list, pwd);
710
711                 remote_control(argv[0], remote_list, command_line->path, list, command_line->collection_list);
712                 /* There is no return to this point
713                  */
714                 g_free(pwd);
715                 g_free(current_dir);
716                 }
717         g_free(geometry);
718         g_list_free(remote_list);
719
720         if (list && list->next)
721                 {
722                 command_line->cmd_list = list;
723                 }
724         else
725                 {
726                 string_list_free(list);
727                 command_line->cmd_list = NULL;
728                 }
729
730         if (command_line->startup_blank)
731                 {
732                 g_free(command_line->path);
733                 command_line->path = NULL;
734                 g_free(command_line->file);
735                 command_line->file = NULL;
736                 filelist_free(command_line->cmd_list);
737                 command_line->cmd_list = NULL;
738                 string_list_free(command_line->collection_list);
739                 command_line->collection_list = NULL;
740                 }
741 }
742
743 static void parse_command_line_for_debug_option(gint argc, gchar *argv[])
744 {
745 #ifdef DEBUG
746         const gchar *debug_option = "--debug";
747         gint len = strlen(debug_option);
748
749         if (argc > 1)
750                 {
751                 gint i;
752
753                 for (i = 1; i < argc; i++)
754                         {
755                         const gchar *cmd_line = argv[i];
756                         if (strncmp(cmd_line, debug_option, len) == 0)
757                                 {
758                                 gint cmd_line_len = strlen(cmd_line);
759
760                                 /* we now increment the debug state for verbosity */
761                                 if (cmd_line_len == len)
762                                         debug_level_add(1);
763                                 else if (cmd_line[len] == '=' && g_ascii_isdigit(cmd_line[len+1]))
764                                         {
765                                         gint n = atoi(cmd_line + len + 1);
766                                         if (n < 0) n = 1;
767                                         debug_level_add(n);
768                                         }
769                                 }
770                         }
771                 }
772
773         DEBUG_1("debugging output enabled (level %d)", get_debug_level());
774 #endif
775 }
776
777 #ifdef HAVE_CLUTTER
778 static gboolean parse_command_line_for_clutter_option(gint argc, gchar *argv[])
779 {
780         const gchar *clutter_option = "--disable-clutter";
781         gint len = strlen(clutter_option);
782         gboolean ret = FALSE;
783
784         if (argc > 1)
785                 {
786                 gint i;
787
788                 for (i = 1; i < argc; i++)
789                         {
790                         const gchar *cmd_line = argv[i];
791                         if (strncmp(cmd_line, clutter_option, len) == 0)
792                                 {
793                                 ret = TRUE;
794                                 }
795                         }
796                 }
797
798         return ret;
799 }
800 #endif
801
802 /*
803  *-----------------------------------------------------------------------------
804  * startup, init, and exit
805  *-----------------------------------------------------------------------------
806  */
807
808 #define RC_HISTORY_NAME "history"
809 #define RC_MARKS_NAME "marks"
810
811 static void setup_env_path(void)
812 {
813         const gchar *old_path = g_getenv("PATH");
814         gchar *path = g_strconcat(gq_bin_dir, ":", old_path, NULL);
815         g_setenv("PATH", path, TRUE);
816         g_free(path);
817 }
818
819 static void keys_load(void)
820 {
821         gchar *path;
822
823         path = g_build_filename(get_rc_dir(), RC_HISTORY_NAME, NULL);
824         history_list_load(path);
825         g_free(path);
826 }
827
828 static void keys_save(void)
829 {
830         gchar *path;
831
832         path = g_build_filename(get_rc_dir(), RC_HISTORY_NAME, NULL);
833         history_list_save(path);
834         g_free(path);
835 }
836
837 static void marks_load(void)
838 {
839         gchar *path;
840
841         path = g_build_filename(get_rc_dir(), RC_MARKS_NAME, NULL);
842         marks_list_load(path);
843         g_free(path);
844 }
845
846 static void marks_save(gboolean save)
847 {
848         gchar *path;
849
850         path = g_build_filename(get_rc_dir(), RC_MARKS_NAME, NULL);
851         marks_list_save(path, save);
852         g_free(path);
853 }
854
855 static void mkdir_if_not_exists(const gchar *path)
856 {
857         if (isdir(path)) return;
858
859         log_printf(_("Creating %s dir:%s\n"), GQ_APPNAME, path);
860
861         if (!recursive_mkdir_if_not_exists(path, 0755))
862                 {
863                 log_printf(_("Could not create dir:%s\n"), path);
864                 }
865 }
866
867
868 /* We add to duplicate and modify  gtk_accel_map_print() and gtk_accel_map_save()
869  * to improve the reliability in special cases (especially when disk is full)
870  * These functions are now using secure saving stuff.
871  */
872 static void gq_accel_map_print(
873                     gpointer    data,
874                     const gchar *accel_path,
875                     guint       accel_key,
876                     GdkModifierType accel_mods,
877                     gboolean    changed)
878 {
879         GString *gstring = g_string_new(changed ? NULL : "; ");
880         SecureSaveInfo *ssi = data;
881         gchar *tmp, *name;
882
883         g_string_append(gstring, "(gtk_accel_path \"");
884
885         tmp = g_strescape(accel_path, NULL);
886         g_string_append(gstring, tmp);
887         g_free(tmp);
888
889         g_string_append(gstring, "\" \"");
890
891         name = gtk_accelerator_name(accel_key, accel_mods);
892         tmp = g_strescape(name, NULL);
893         g_free(name);
894         g_string_append(gstring, tmp);
895         g_free(tmp);
896
897         g_string_append(gstring, "\")\n");
898
899         secure_fwrite(gstring->str, sizeof(*gstring->str), gstring->len, ssi);
900
901         g_string_free(gstring, TRUE);
902 }
903
904 static gboolean gq_accel_map_save(const gchar *path)
905 {
906         gchar *pathl;
907         SecureSaveInfo *ssi;
908         GString *gstring;
909
910         pathl = path_from_utf8(path);
911         ssi = secure_open(pathl);
912         g_free(pathl);
913         if (!ssi)
914                 {
915                 log_printf(_("error saving file: %s\n"), path);
916                 return FALSE;
917                 }
918
919         gstring = g_string_new("; ");
920         if (g_get_prgname())
921                 g_string_append(gstring, g_get_prgname());
922         g_string_append(gstring, " GtkAccelMap rc-file         -*- scheme -*-\n");
923         g_string_append(gstring, "; this file is an automated accelerator map dump\n");
924         g_string_append(gstring, ";\n");
925
926         secure_fwrite(gstring->str, sizeof(*gstring->str), gstring->len, ssi);
927
928         g_string_free(gstring, TRUE);
929
930         gtk_accel_map_foreach((gpointer) ssi, gq_accel_map_print);
931
932         if (secure_close(ssi))
933                 {
934                 log_printf(_("error saving file: %s\nerror: %s\n"), path,
935                            secsave_strerror(secsave_errno));
936                 return FALSE;
937                 }
938
939         return TRUE;
940 }
941
942 static gchar *accep_map_filename(void)
943 {
944         return g_build_filename(get_rc_dir(), "accels", NULL);
945 }
946
947 static void accel_map_save(void)
948 {
949         gchar *path;
950
951         path = accep_map_filename();
952         gq_accel_map_save(path);
953         g_free(path);
954 }
955
956 static void accel_map_load(void)
957 {
958         gchar *path;
959         gchar *pathl;
960
961         path = accep_map_filename();
962         pathl = path_from_utf8(path);
963         gtk_accel_map_load(pathl);
964         g_free(pathl);
965         g_free(path);
966 }
967
968 static void gtkrc_load(void)
969 {
970         gchar *path;
971         gchar *pathl;
972
973         /* If a gtkrc file exists in the rc directory, add it to the
974          * list of files to be parsed at the end of gtk_init() */
975         path = g_build_filename(get_rc_dir(), "gtkrc", NULL);
976         pathl = path_from_utf8(path);
977         if (access(pathl, R_OK) == 0)
978                 gtk_rc_add_default_file(pathl);
979         g_free(pathl);
980         g_free(path);
981 }
982
983 static void exit_program_final(void)
984 {
985         LayoutWindow *lw = NULL;
986         GList *list;
987         LayoutWindow *tmp_lw;
988
989          /* make sure that external editors are loaded, we would save incomplete configuration otherwise */
990         layout_editors_reload_finish();
991
992         remote_close(remote_connection);
993
994         collect_manager_flush();
995
996         /* Save the named windows */
997         if (layout_window_list && layout_window_list->next)
998                 {
999                 list = layout_window_list;
1000                 while (list)
1001                         {
1002                         tmp_lw = list->data;
1003                         if (!g_str_has_prefix(tmp_lw->options.id, "lw"))
1004                                 {
1005                                 save_layout(list->data);
1006                                 }
1007                         list = list->next;
1008                         }
1009                 }
1010
1011         save_options(options);
1012         keys_save();
1013         accel_map_save();
1014
1015         if (layout_valid(&lw))
1016                 {
1017                 layout_free(lw);
1018                 }
1019
1020         secure_close(command_line->ssi);
1021
1022         gtk_main_quit();
1023 }
1024
1025 static GenericDialog *exit_dialog = NULL;
1026
1027 static void exit_confirm_cancel_cb(GenericDialog *gd, gpointer data)
1028 {
1029         exit_dialog = NULL;
1030         generic_dialog_close(gd);
1031 }
1032
1033 static void exit_confirm_exit_cb(GenericDialog *gd, gpointer data)
1034 {
1035         exit_dialog = NULL;
1036         generic_dialog_close(gd);
1037         exit_program_final();
1038 }
1039
1040 static gint exit_confirm_dlg(void)
1041 {
1042         GtkWidget *parent;
1043         LayoutWindow *lw;
1044         gchar *msg;
1045
1046         if (exit_dialog)
1047                 {
1048                 gtk_window_present(GTK_WINDOW(exit_dialog->dialog));
1049                 return TRUE;
1050                 }
1051
1052         if (!collection_window_modified_exists()) return FALSE;
1053
1054         parent = NULL;
1055         lw = NULL;
1056         if (layout_valid(&lw))
1057                 {
1058                 parent = lw->window;
1059                 }
1060
1061         msg = g_strdup_printf("%s - %s", GQ_APPNAME, _("exit"));
1062         exit_dialog = generic_dialog_new(msg,
1063                                 "exit", parent, FALSE,
1064                                 exit_confirm_cancel_cb, NULL);
1065         g_free(msg);
1066         msg = g_strdup_printf(_("Quit %s"), GQ_APPNAME);
1067         generic_dialog_add_message(exit_dialog, GTK_STOCK_DIALOG_QUESTION,
1068                                    msg, _("Collections have been modified. Quit anyway?"), TRUE);
1069         g_free(msg);
1070         generic_dialog_add_button(exit_dialog, GTK_STOCK_QUIT, NULL, exit_confirm_exit_cb, TRUE);
1071
1072         gtk_widget_show(exit_dialog->dialog);
1073
1074         return TRUE;
1075 }
1076
1077 static void exit_program_write_metadata_cb(gint success, const gchar *dest_path, gpointer data)
1078 {
1079         if (success) exit_program();
1080 }
1081
1082 void exit_program(void)
1083 {
1084         layout_image_full_screen_stop(NULL);
1085
1086         if (metadata_write_queue_confirm(FALSE, exit_program_write_metadata_cb, NULL)) return;
1087
1088         options->marks_save ? marks_save(TRUE) : marks_save(FALSE);
1089
1090         if (exit_confirm_dlg()) return;
1091
1092         exit_program_final();
1093 }
1094
1095 /* This code is supposed to handle situation when a file mmaped by image_loader
1096  * or by exif loader is truncated by some other process.
1097  * This is probably not completely correct according to posix, because
1098  * mmap is not in the list of calls that can be used safely in signal handler,
1099  * but anyway, the handler is called in situation when the application would
1100  * crash otherwise.
1101  * Ideas for improvement are welcome ;)
1102  */
1103 /** @FIXME this probably needs some better ifdefs. Please report any compilation problems */
1104
1105 #if defined(SIGBUS) && defined(SA_SIGINFO)
1106 static void sigbus_handler_cb(int signum, siginfo_t *info, void *context)
1107 {
1108         unsigned long pagesize = sysconf(_SC_PAGE_SIZE);
1109         DEBUG_1("SIGBUS %p", info->si_addr);
1110         mmap((void *)(((unsigned long)info->si_addr / pagesize) * pagesize), pagesize, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
1111 }
1112 #endif
1113
1114 static void setup_sigbus_handler(void)
1115 {
1116 #if defined(SIGBUS) && defined(SA_SIGINFO)
1117         struct sigaction sigbus_action;
1118         sigfillset(&sigbus_action.sa_mask);
1119         sigbus_action.sa_sigaction = sigbus_handler_cb;
1120         sigbus_action.sa_flags = SA_SIGINFO;
1121
1122         sigaction(SIGBUS, &sigbus_action, NULL);
1123 #endif
1124 }
1125
1126 /**
1127  * @brief Set up the application paths
1128  * 
1129  * This function is required for use of AppImages. AppImages are
1130  * relocatable, and therefore cannot use fixed paths to various components.
1131  * These paths were originally #defines created during compilation.
1132  * They are now variables, all defined relative to one level above the
1133  * directory that the executable is run from.
1134  */
1135 static void create_application_paths()
1136 {
1137         gchar buf[1024];
1138         gchar *dirname;
1139         gchar *tmp;
1140
1141         memset(buf, 0, sizeof(buf));
1142         if (readlink("/proc/self/exe", buf, sizeof(buf) - 1) < 0)
1143                 {
1144                 /* There was an error. Perhaps the path does not exist
1145                  * or the buffer is not big enough. */
1146                 log_printf("Can't get path from /proc/self/exe");
1147                 exit(1);
1148                 }
1149
1150         dirname = g_path_get_dirname(buf); // default is /usr/bin/
1151         gq_prefix = g_path_get_dirname(dirname);
1152
1153         gq_localedir = g_build_filename(gq_prefix, "share", "locale", NULL);
1154         tmp = g_build_filename(gq_prefix, "share", "doc", NULL);
1155         gq_helpdir = g_strconcat(tmp, G_DIR_SEPARATOR_S, "geeqie-", VERSION, NULL);
1156         gq_htmldir = g_build_filename(gq_helpdir, "html", NULL);
1157         gq_app_dir = g_build_filename(gq_prefix, "share", "geeqie", NULL);
1158         gq_bin_dir = g_build_filename(gq_prefix, "lib", "geeqie", NULL);
1159         desktop_file_template = g_build_filename(gq_app_dir, "template.desktop", NULL);
1160
1161         g_free(tmp);
1162         g_free(dirname);
1163 }
1164
1165 gint main(gint argc, gchar *argv[])
1166 {
1167         CollectionData *first_collection = NULL;
1168         gchar *buf;
1169         CollectionData *cd = NULL;
1170         gboolean disable_clutter = FALSE;
1171         gboolean single_dir = TRUE;
1172         LayoutWindow *lw;
1173
1174 #ifdef HAVE_GTHREAD
1175 #if !GLIB_CHECK_VERSION(2,32,0)
1176         g_thread_init(NULL);
1177 #endif
1178         gdk_threads_init();
1179         gdk_threads_enter();
1180
1181 #endif
1182
1183         /* init execution time counter (debug only) */
1184         init_exec_time();
1185
1186         create_application_paths();
1187
1188         /* setup locale, i18n */
1189         setlocale(LC_ALL, "");
1190
1191 #ifdef ENABLE_NLS
1192         bindtextdomain(PACKAGE, gq_localedir);
1193         bind_textdomain_codeset(PACKAGE, "UTF-8");
1194         textdomain(PACKAGE);
1195 #endif
1196
1197         exif_init();
1198
1199 #ifdef HAVE_LUA
1200         lua_init();
1201 #endif
1202
1203         /* setup random seed for random slideshow */
1204         srand(time(NULL));
1205
1206         setup_sigbus_handler();
1207
1208         /* register global notify functions */
1209         file_data_register_notify_func(cache_notify_cb, NULL, NOTIFY_PRIORITY_HIGH);
1210         file_data_register_notify_func(thumb_notify_cb, NULL, NOTIFY_PRIORITY_HIGH);
1211         file_data_register_notify_func(histogram_notify_cb, NULL, NOTIFY_PRIORITY_HIGH);
1212         file_data_register_notify_func(collect_manager_notify_cb, NULL, NOTIFY_PRIORITY_LOW);
1213         file_data_register_notify_func(metadata_notify_cb, NULL, NOTIFY_PRIORITY_LOW);
1214
1215
1216         gtkrc_load();
1217
1218         parse_command_line_for_debug_option(argc, argv);
1219         DEBUG_1("%s main: gtk_init", get_exec_time());
1220 #ifdef HAVE_CLUTTER
1221         if (parse_command_line_for_clutter_option(argc, argv))
1222                 {
1223                 disable_clutter = TRUE;
1224                 gtk_init(&argc, &argv);
1225                 }
1226         else
1227                 {
1228                 if (gtk_clutter_init(&argc, &argv) != CLUTTER_INIT_SUCCESS)
1229                         {
1230                         log_printf("Can't initialize clutter-gtk.\nStart Geeqie with the option \"geeqie --disable-clutter\"");
1231                         runcmd("zenity --error --title=\"Geeqie\" --text \"Can't initialize clutter-gtk.\n\nStart Geeqie with the option:\n geeqie --disable-clutter\" --width=300");
1232                         exit(1);
1233                         }
1234                 }
1235 #else
1236         gtk_init(&argc, &argv);
1237 #endif
1238
1239         if (gtk_major_version < GTK_MAJOR_VERSION ||
1240             (gtk_major_version == GTK_MAJOR_VERSION && gtk_minor_version < GTK_MINOR_VERSION) )
1241                 {
1242                 log_printf("!!! This is a friendly warning.\n");
1243                 log_printf("!!! The version of GTK+ in use now is older than when %s was compiled.\n", GQ_APPNAME);
1244                 log_printf("!!!  compiled with GTK+-%d.%d\n", GTK_MAJOR_VERSION, GTK_MINOR_VERSION);
1245                 log_printf("!!!   running with GTK+-%d.%d\n", gtk_major_version, gtk_minor_version);
1246                 log_printf("!!! %s may quit unexpectedly with a relocation error.\n", GQ_APPNAME);
1247                 }
1248
1249         DEBUG_1("%s main: pixbuf_inline_register_stock_icons", get_exec_time());
1250         pixbuf_inline_register_stock_icons();
1251
1252         DEBUG_1("%s main: setting default options before commandline handling", get_exec_time());
1253         options = init_options(NULL);
1254         setup_default_options(options);
1255         if (disable_clutter)
1256                 {
1257                 options->disable_gpu = TRUE;
1258                 }
1259
1260         DEBUG_1("%s main: parse_command_line", get_exec_time());
1261         parse_command_line(argc, argv);
1262
1263         DEBUG_1("%s main: mkdir_if_not_exists", get_exec_time());
1264         /* these functions don't depend on config file */
1265         mkdir_if_not_exists(get_rc_dir());
1266         mkdir_if_not_exists(get_collections_dir());
1267         mkdir_if_not_exists(get_thumbnails_cache_dir());
1268         mkdir_if_not_exists(get_metadata_cache_dir());
1269         mkdir_if_not_exists(get_window_layouts_dir());
1270
1271         setup_env_path();
1272
1273         keys_load();
1274         accel_map_load();
1275
1276         /* restore session from the config file */
1277
1278
1279         DEBUG_1("%s main: load_options", get_exec_time());
1280         if (!load_options(options))
1281                 {
1282                 /* load_options calls these functions after it parses global options, we have to call it here if it fails */
1283                 filter_add_defaults();
1284                 filter_rebuild();
1285                 }
1286
1287 #ifdef HAVE_CLUTTER
1288 /** @FIXME For the background of this see:
1289  * https://github.com/BestImageViewer/geeqie/issues/397
1290  * The feature CLUTTER_FEATURE_SWAP_EVENTS indictates if the
1291  * system is liable to exhibit this problem.
1292  * The user is provided with an override in Preferences/Behavior
1293  */
1294         if (!options->override_disable_gpu && !options->disable_gpu)
1295                 {
1296                 DEBUG_1("CLUTTER_FEATURE_SWAP_EVENTS %d",clutter_feature_available(CLUTTER_FEATURE_SWAP_EVENTS));
1297                 if (clutter_feature_available(CLUTTER_FEATURE_SWAP_EVENTS) != 0)
1298                         {
1299                         options->disable_gpu = TRUE;
1300                         }
1301                 }
1302 #endif
1303
1304         /* handle missing config file and commandline additions*/
1305         if (!layout_window_list)
1306                 {
1307                 /* broken or no config file or no <layout> section */
1308                 layout_new_from_default();
1309                 }
1310
1311         layout_editors_reload_start();
1312
1313         /* If no --list option, open a separate collection window for each
1314          * .gqv file on the command line
1315          */
1316         if (command_line->collection_list && !command_line->startup_command_line_collection)
1317                 {
1318                 GList *work;
1319
1320                 work = command_line->collection_list;
1321                 while (work)
1322                         {
1323                         CollectWindow *cw;
1324                         const gchar *path;
1325
1326                         path = work->data;
1327                         work = work->next;
1328
1329                         cw = collection_window_new(path);
1330                         if (!first_collection && cw) first_collection = cw->cd;
1331                         }
1332                 }
1333
1334         if (command_line->log_file)
1335                 {
1336                 gchar *pathl;
1337                 gchar *path = g_strdup(command_line->log_file);
1338
1339                 pathl = path_from_utf8(path);
1340                 command_line->ssi = secure_open(pathl);
1341                 }
1342
1343         /* If there is a files list on the command line and no --list option,
1344          * check if they are all in the same folder
1345          */
1346         if (command_line->cmd_list && !(command_line->startup_command_line_collection))
1347                 {
1348                 GList *work;
1349                 gchar *path = NULL;
1350
1351                 work = command_line->cmd_list;
1352
1353                 while (work && single_dir)
1354                         {
1355                         gchar *dirname;
1356
1357                         dirname = g_path_get_dirname(work->data);
1358                         if (!path)
1359                                 {
1360                                 path = g_strdup(dirname);
1361                                 }
1362                         else
1363                                 {
1364                                 if (g_strcmp0(path, dirname) != 0)
1365                                         {
1366                                         single_dir = FALSE;
1367                                         }
1368                                 }
1369                         g_free(dirname);
1370                         work = work->next;
1371                         }
1372                 g_free(path);
1373                 }
1374
1375         /* Files from multiple folders, or --list option given
1376          * then open an unnamed collection and insert all files
1377          */
1378         if ((command_line->cmd_list && !single_dir) || (command_line->startup_command_line_collection && command_line->cmd_list))
1379                 {
1380                 GList *work;
1381                 CollectWindow *cw;
1382
1383                 cw = collection_window_new(NULL);
1384                 cd = cw->cd;
1385
1386                 collection_path_changed(cd);
1387
1388                 work = command_line->cmd_list;
1389                 while (work)
1390                         {
1391                         FileData *fd;
1392
1393                         fd = file_data_new_simple(work->data);
1394                         collection_add(cd, fd, FALSE);
1395                         file_data_unref(fd);
1396                         work = work->next;
1397                         }
1398
1399                 work = command_line->collection_list;
1400                 while (work)
1401                         {
1402                         collection_load(cd, (gchar *)work->data, COLLECTION_LOAD_APPEND);
1403                         work = work->next;
1404                         }
1405
1406                 if (cd->list) layout_image_set_collection(NULL, cd, cd->list->data);
1407
1408                 /* mem leak, we never unref this collection when !startup_command_line_collection
1409                  * (the image view of the main window does not hold a ref to the collection)
1410                  * this is sort of unavoidable, for if it did hold a ref, next/back
1411                  * may not work as expected when closing collection windows.
1412                  *
1413                  * collection_unref(cd);
1414                  */
1415
1416                 }
1417         else if (first_collection)
1418                 {
1419                 layout_image_set_collection(NULL, first_collection,
1420                                             collection_get_first(first_collection));
1421                 }
1422
1423         /* If the files on the command line are from one folder, select those files
1424          * unless it is a command line collection - then leave focus on collection window
1425          */
1426         lw = NULL;
1427         layout_valid(&lw);
1428
1429         if (single_dir && command_line->cmd_list && !command_line->startup_command_line_collection)
1430                 {
1431                 GList *work;
1432                 GList *selected;
1433                 FileData *fd;
1434
1435                 selected = NULL;
1436                 work = command_line->cmd_list;
1437                 while (work)
1438                         {
1439                         fd = file_data_new_simple((gchar *)work->data);
1440                         selected = g_list_append(selected, fd);
1441                         file_data_unref(fd);
1442                         work = work->next;
1443                         }
1444                 layout_select_list(lw, selected);
1445                 }
1446
1447         buf = g_build_filename(get_rc_dir(), ".command", NULL);
1448         remote_connection = remote_server_init(buf, cd);
1449         g_free(buf);
1450
1451         marks_load();
1452
1453         DEBUG_1("%s main: gtk_main", get_exec_time());
1454         gtk_main();
1455 #ifdef HAVE_GTHREAD
1456         gdk_threads_leave();
1457 #endif
1458         return 0;
1459 }
1460 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */