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nsxivmain.c

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1/* Copyright 2011-2013 Bert Muennich
2 *
3 * This file is part of sxiv.
4 *
5 * sxiv is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published
7 * by the Free Software Foundation; either version 2 of the License,
8 * or (at your option) any later version.
9 *
10 * sxiv is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with sxiv. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19#define _POSIX_C_SOURCE 200112L
20#define _MAPPINGS_CONFIG
21
22#include <stdlib.h>
23#include <stdio.h>
24#include <string.h>
25#include <fcntl.h>
26#include <unistd.h>
27#include <errno.h>
28#include <signal.h>
29#include <sys/select.h>
30#include <sys/stat.h>
31#include <sys/time.h>
32#include <sys/wait.h>
33#include <X11/keysym.h>
34#include <X11/XF86keysym.h>
35
36#include "types.h"
37#include "commands.h"
38#include "image.h"
39#include "options.h"
40#include "thumbs.h"
41#include "util.h"
42#include "window.h"
43#include "config.h"
44
45enum {
46 FILENAME_CNT = 1024,
47 TITLE_LEN = 256
48};
49
50typedef struct {
51 const char *name;
52 char *cmd;
53} exec_t;
54
55typedef struct {
56 struct timeval when;
57 bool active;
58 timeout_f handler;
59} timeout_t;
60
61/* timeout handler functions: */
62void redraw(void);
63void reset_cursor(void);
64void animate(void);
65void slideshow(void);
66void clear_resize(void);
67
68appmode_t mode;
69img_t img;
70tns_t tns;
71win_t win;
72
73fileinfo_t *files;
74int filecnt, fileidx;
75int alternate;
76int markcnt;
77
78int prefix;
79bool extprefix;
80
81bool resized = false;
82
83struct {
84 char *cmd;
85 int fd;
86 unsigned int i, lastsep;
87 bool open;
88} info;
89
90struct {
91 char *cmd;
92 bool warned;
93} keyhandler;
94
95timeout_t timeouts[] = {
96 { { 0, 0 }, false, redraw },
97 { { 0, 0 }, false, reset_cursor },
98 { { 0, 0 }, false, animate },
99 { { 0, 0 }, false, slideshow },
100 { { 0, 0 }, false, clear_resize },
101};
102
103void cleanup(void)
104{
105 static bool in = false;
106
107 if (!in) {
108 in = true;
109 img_close(&img, false);
110 tns_free(&tns);
111 win_close(&win);
112 }
113}
114
115void check_add_file(char *filename)
116{
117 const char *bn;
118
119 if (filename == NULL || *filename == '\0')
120 return;
121
122 if (access(filename, R_OK) < 0) {
123 warn("could not open file: %s", filename);
124 return;
125 }
126
127 if (fileidx == filecnt) {
128 filecnt *= 2;
129 files = (fileinfo_t*) s_realloc(files, filecnt * sizeof(fileinfo_t));
130 }
131
132#if defined _BSD_SOURCE || defined _XOPEN_SOURCE && \
133 ((_XOPEN_SOURCE - 0) >= 500 || defined _XOPEN_SOURCE_EXTENDED)
134
135 if ((files[fileidx].path = realpath(filename, NULL)) == NULL) {
136 warn("could not get real path of file: %s\n", filename);
137 return;
138 }
139#else
140 if (*filename != '/') {
141 if ((files[fileidx].path = absolute_path(filename)) == NULL) {
142 warn("could not get absolute path of file: %s\n", filename);
143 return;
144 }
145 } else {
146 files[fileidx].path = NULL;
147 }
148#endif
149
150 files[fileidx].loaded = false;
151 files[fileidx].name = s_strdup(filename);
152 if (files[fileidx].path == NULL)
153 files[fileidx].path = files[fileidx].name;
154 if ((bn = strrchr(files[fileidx].name , '/')) != NULL && bn[1] != '\0')
155 files[fileidx].base = ++bn;
156 else
157 files[fileidx].base = files[fileidx].name;
158 fileidx++;
159}
160
161void remove_file(int n, bool manual)
162{
163 if (n < 0 || n >= filecnt)
164 return;
165
166 if (filecnt == 1) {
167 if (!manual)
168 fprintf(stderr, "sxiv: no more files to display, aborting\n");
169 cleanup();
170 exit(manual ? EXIT_SUCCESS : EXIT_FAILURE);
171 }
172 if (files[n].marked)
173 markcnt--;
174
175 if (files[n].path != files[n].name)
176 free((void*) files[n].path);
177 free((void*) files[n].name);
178
179 if (n + 1 < filecnt)
180 memmove(files + n, files + n + 1, (filecnt - n - 1) * sizeof(fileinfo_t));
181 if (n + 1 < tns.cnt) {
182 memmove(tns.thumbs + n, tns.thumbs + n + 1, (tns.cnt - n - 1) *
183 sizeof(thumb_t));
184 memset(tns.thumbs + tns.cnt - 1, 0, sizeof(thumb_t));
185 }
186
187 filecnt--;
188 if (n < tns.cnt)
189 tns.cnt--;
190 if (mode == MODE_THUMB && fileidx >= tns.cnt)
191 fileidx = tns.cnt - 1;
192 if (n < alternate)
193 alternate--;
194}
195
196void set_timeout(timeout_f handler, int time, bool overwrite)
197{
198 int i;
199
200 for (i = 0; i < ARRLEN(timeouts); i++) {
201 if (timeouts[i].handler == handler) {
202 if (!timeouts[i].active || overwrite) {
203 gettimeofday(&timeouts[i].when, 0);
204 TV_ADD_MSEC(&timeouts[i].when, time);
205 timeouts[i].active = true;
206 }
207 return;
208 }
209 }
210}
211
212void reset_timeout(timeout_f handler)
213{
214 int i;
215
216 for (i = 0; i < ARRLEN(timeouts); i++) {
217 if (timeouts[i].handler == handler) {
218 timeouts[i].active = false;
219 return;
220 }
221 }
222}
223
224bool check_timeouts(struct timeval *t)
225{
226 int i = 0, tdiff, tmin = -1;
227 struct timeval now;
228
229 while (i < ARRLEN(timeouts)) {
230 if (timeouts[i].active) {
231 gettimeofday(&now, 0);
232 tdiff = TV_DIFF(&timeouts[i].when, &now);
233 if (tdiff <= 0) {
234 timeouts[i].active = false;
235 if (timeouts[i].handler != NULL)
236 timeouts[i].handler();
237 i = tmin = -1;
238 } else if (tmin < 0 || tdiff < tmin) {
239 tmin = tdiff;
240 }
241 }
242 i++;
243 }
244 if (tmin > 0 && t != NULL)
245 TV_SET_MSEC(t, tmin);
246 return tmin > 0;
247}
248
249void open_info(void)
250{
251 static pid_t pid;
252 int pfd[2];
253
254 if (info.cmd == NULL || info.open || win.bar.h == 0)
255 return;
256 if (info.fd != -1) {
257 close(info.fd);
258 kill(pid, SIGTERM);
259 info.fd = -1;
260 }
261 win.bar.l[0] = '\0';
262
263 if (pipe(pfd) < 0)
264 return;
265 pid = fork();
266 if (pid > 0) {
267 close(pfd[1]);
268 fcntl(pfd[0], F_SETFL, O_NONBLOCK);
269 info.fd = pfd[0];
270 info.i = info.lastsep = 0;
271 info.open = true;
272 } else if (pid == 0) {
273 close(pfd[0]);
274 dup2(pfd[1], 1);
275 execl(info.cmd, info.cmd, files[fileidx].name, NULL);
276 warn("could not exec: %s", info.cmd);
277 exit(EXIT_FAILURE);
278 }
279}
280
281void read_info(void)
282{
283 ssize_t i, n;
284 char buf[BAR_L_LEN];
285
286 while (true) {
287 n = read(info.fd, buf, sizeof(buf));
288 if (n < 0 && errno == EAGAIN)
289 return;
290 else if (n == 0)
291 goto end;
292 for (i = 0; i < n; i++) {
293 if (buf[i] == '\n') {
294 if (info.lastsep == 0) {
295 win.bar.l[info.i++] = ' ';
296 info.lastsep = 1;
297 }
298 } else {
299 win.bar.l[info.i++] = buf[i];
300 info.lastsep = 0;
301 }
302 if (info.i + 1 == sizeof(win.bar.l))
303 goto end;
304 }
305 }
306end:
307 info.i -= info.lastsep;
308 win.bar.l[info.i] = '\0';
309 win_draw(&win);
310 close(info.fd);
311 info.fd = -1;
312 while (waitpid(-1, NULL, WNOHANG) > 0);
313}
314
315void load_image(int new)
316{
317 static int current;
318
319 if (new < 0 || new >= filecnt)
320 return;
321
322 win_set_cursor(&win, CURSOR_WATCH);
323 reset_timeout(slideshow);
324
325 if (new != current)
326 alternate = current;
327
328 img_close(&img, false);
329 while (!img_load(&img, &files[new])) {
330 remove_file(new, false);
331 if (new >= filecnt)
332 new = filecnt - 1;
333 else if (new > 0 && new < fileidx)
334 new--;
335 }
336 files[new].loaded = true;
337 fileidx = current = new;
338
339 info.open = false;
340 open_info();
341
342 if (img.multi.cnt > 0 && img.multi.animate)
343 set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
344 else
345 reset_timeout(animate);
346}
347
348void update_info(void)
349{
350 unsigned int i, fn, fw, n;
351 unsigned int llen = sizeof(win.bar.l), rlen = sizeof(win.bar.r);
352 char *lt = win.bar.l, *rt = win.bar.r, title[TITLE_LEN];
353 const char * mark;
354 bool ow_info;
355
356 for (fw = 0, i = filecnt; i > 0; fw++, i /= 10);
357
358 /* update window title */
359 if (mode == MODE_THUMB) {
360 win_set_title(&win, "sxiv");
361 } else {
362 snprintf(title, sizeof(title), "sxiv - %s", files[fileidx].name);
363 win_set_title(&win, title);
364 }
365
366 /* update bar contents */
367 if (win.bar.h == 0)
368 return;
369 mark = files[fileidx].marked ? "+ " : "";
370 if (mode == MODE_THUMB) {
371 if (tns.loadnext >= filecnt) {
372 n = snprintf(rt, rlen, "%s%0*d/%d", mark, fw, fileidx + 1, filecnt);
373 ow_info = true;
374 } else {
375 snprintf(lt, llen, "Loading... %0*d/%d", fw, tns.loadnext, filecnt);
376 rt[0] = '\0';
377 ow_info = false;
378 }
379 } else {
380 n = snprintf(rt, rlen, "%s", mark);
381 if (img.ss.on)
382 n += snprintf(rt + n, rlen - n, "%ds | ", img.ss.delay);
383 if (img.gamma != 0)
384 n += snprintf(rt + n, rlen - n, "G%+d | ", img.gamma);
385 n += snprintf(rt + n, rlen - n, "%3d%% | ", (int) (img.zoom * 100.0));
386 if (img.multi.cnt > 0) {
387 for (fn = 0, i = img.multi.cnt; i > 0; fn++, i /= 10);
388 n += snprintf(rt + n, rlen - n, "%0*d/%d | ",
389 fn, img.multi.sel + 1, img.multi.cnt);
390 }
391 n += snprintf(rt + n, rlen - n, "%0*d/%d", fw, fileidx + 1, filecnt);
392 ow_info = info.cmd == NULL;
393 }
394 if (ow_info) {
395 fn = strlen(files[fileidx].name);
396 if (fn < llen &&
397 win_textwidth(files[fileidx].name, fn, true) +
398 win_textwidth(rt, n, true) < win.w)
399 {
400 strncpy(lt, files[fileidx].name, llen);
401 } else {
402 strncpy(lt, files[fileidx].base, llen);
403 }
404 }
405}
406
407void redraw(void)
408{
409 int t;
410
411 if (mode == MODE_IMAGE) {
412 img_render(&img);
413 if (img.ss.on) {
414 t = img.ss.delay * 1000;
415 if (img.multi.cnt > 0 && img.multi.animate)
416 t = MAX(t, img.multi.length);
417 set_timeout(slideshow, t, false);
418 }
419 } else {
420 tns_render(&tns);
421 }
422 update_info();
423 win_draw(&win);
424 reset_timeout(redraw);
425 reset_cursor();
426}
427
428void reset_cursor(void)
429{
430 int i;
431 cursor_t cursor = CURSOR_NONE;
432
433 if (mode == MODE_IMAGE) {
434 for (i = 0; i < ARRLEN(timeouts); i++) {
435 if (timeouts[i].handler == reset_cursor) {
436 if (timeouts[i].active)
437 cursor = CURSOR_ARROW;
438 break;
439 }
440 }
441 } else {
442 if (tns.loadnext < filecnt)
443 cursor = CURSOR_WATCH;
444 else
445 cursor = CURSOR_ARROW;
446 }
447 win_set_cursor(&win, cursor);
448}
449
450void animate(void)
451{
452 if (img_frame_animate(&img)) {
453 redraw();
454 set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
455 }
456}
457
458void slideshow(void)
459{
460 load_image(fileidx + 1 < filecnt ? fileidx + 1 : 0);
461 redraw();
462}
463
464void clear_resize(void)
465{
466 resized = false;
467}
468
469void run_key_handler(const char *key, unsigned int mask)
470{
471 pid_t pid;
472 int i, j, retval, status;
473 int fcnt = mode == MODE_THUMB && markcnt > 0 ? markcnt : 1;
474 bool changed = false;
475 char **args, kstr[32], oldbar[sizeof(win.bar.l)];
476 struct stat *oldst, newst;
477 struct { int fn; struct stat st; } *finfo;
478
479 if (keyhandler.cmd == NULL) {
480 if (!keyhandler.warned) {
481 warn("key handler not installed");
482 keyhandler.warned = true;
483 }
484 return;
485 }
486 if (key == NULL)
487 return;
488
489 finfo = s_malloc(fcnt * sizeof(*finfo));
490 args = s_malloc((fcnt + 3) * sizeof(*args));
491 args[0] = keyhandler.cmd;
492 args[1] = kstr;
493 args[fcnt+2] = NULL;
494 if (mode == MODE_IMAGE || markcnt == 0) {
495 finfo[0].fn = fileidx;
496 stat(files[fileidx].path, &finfo[0].st);
497 args[2] = (char*) files[fileidx].path;
498 } else for (i = j = 0; i < filecnt; i++) {
499 if (files[i].marked) {
500 finfo[j].fn = i;
501 stat(files[i].path, &finfo[j++].st);
502 args[j+1] = (char*) files[i].path;
503 }
504 }
505 snprintf(kstr, sizeof(kstr), "%s%s%s%s",
506 mask & ControlMask ? "C-" : "",
507 mask & Mod1Mask ? "M-" : "",
508 mask & ShiftMask ? "S-" : "", key);
509
510 memcpy(oldbar, win.bar.l, sizeof(win.bar.l));
511 strncpy(win.bar.l, "Running key handler...", sizeof(win.bar.l));
512 win_draw(&win);
513 win_set_cursor(&win, CURSOR_WATCH);
514
515 if ((pid = fork()) == 0) {
516 execv(keyhandler.cmd, args);
517 warn("could not exec key handler");
518 exit(EXIT_FAILURE);
519 } else if (pid < 0) {
520 warn("could not fork key handler");
521 goto end;
522 }
523 waitpid(pid, &status, 0);
524 retval = WEXITSTATUS(status);
525 if (WIFEXITED(status) == 0 || retval != 0)
526 warn("key handler exited with non-zero return value: %d", retval);
527
528 for (i = 0; i < fcnt; i++) {
529 oldst = &finfo[i].st;
530 if (stat(files[finfo[i].fn].path, &newst) != 0 ||
531 memcmp(&oldst->st_mtime, &newst.st_mtime, sizeof(newst.st_mtime)) != 0)
532 {
533 if (tns.thumbs != NULL) {
534 tns.thumbs[finfo[i].fn].loaded = false;
535 tns.loadnext = MIN(tns.loadnext, finfo[i].fn);
536 }
537 changed = true;
538 }
539 }
540end:
541 if (mode == MODE_IMAGE) {
542 if (changed) {
543 img_close(&img, true);
544 load_image(fileidx);
545 } else if (info.cmd != NULL) {
546 memcpy(win.bar.l, oldbar, sizeof(win.bar.l));
547 }
548 }
549 reset_cursor();
550 redraw();
551 free(finfo);
552 free(args);
553}
554
555#define MODMASK(mask) ((mask) & (ShiftMask|ControlMask|Mod1Mask))
556
557void on_keypress(XKeyEvent *kev)
558{
559 int i;
560 unsigned int sh;
561 KeySym ksym, shksym;
562 char key;
563 bool dirty = false;
564
565 if (kev == NULL)
566 return;
567
568 if (kev->state & ShiftMask) {
569 kev->state &= ~ShiftMask;
570 XLookupString(kev, &key, 1, &shksym, NULL);
571 kev->state |= ShiftMask;
572 }
573 XLookupString(kev, &key, 1, &ksym, NULL);
574 sh = (kev->state & ShiftMask) && ksym != shksym ? ShiftMask : 0;
575
576 if (IsModifierKey(ksym))
577 return;
578 if (ksym == XK_Escape && MODMASK(kev->state) == 0) {
579 extprefix = False;
580 } else if (extprefix) {
581 run_key_handler(XKeysymToString(ksym), kev->state & ~sh);
582 extprefix = False;
583 } else if (key >= '0' && key <= '9') {
584 /* number prefix for commands */
585 prefix = prefix * 10 + (int) (key - '0');
586 return;
587 } else for (i = 0; i < ARRLEN(keys); i++) {
588 if (keys[i].ksym == ksym &&
589 MODMASK(keys[i].mask | sh) == MODMASK(kev->state) &&
590 keys[i].cmd >= 0 && keys[i].cmd < CMD_COUNT &&
591 (cmds[keys[i].cmd].mode < 0 || cmds[keys[i].cmd].mode == mode))
592 {
593 if (cmds[keys[i].cmd].func(keys[i].arg))
594 dirty = true;
595 }
596 }
597 if (dirty)
598 redraw();
599 prefix = 0;
600}
601
602void on_buttonpress(XButtonEvent *bev)
603{
604 int i, sel;
605 bool dirty = false;
606 static Time firstclick;
607
608 if (bev == NULL)
609 return;
610
611 if (mode == MODE_IMAGE) {
612 win_set_cursor(&win, CURSOR_ARROW);
613 set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
614
615 for (i = 0; i < ARRLEN(buttons); i++) {
616 if (buttons[i].button == bev->button &&
617 MODMASK(buttons[i].mask) == MODMASK(bev->state) &&
618 buttons[i].cmd >= 0 && buttons[i].cmd < CMD_COUNT &&
619 (cmds[buttons[i].cmd].mode < 0 || cmds[buttons[i].cmd].mode == mode))
620 {
621 if (cmds[buttons[i].cmd].func(buttons[i].arg))
622 dirty = true;
623 }
624 }
625 if (dirty)
626 redraw();
627 } else {
628 /* thumbnail mode (hard-coded) */
629 switch (bev->button) {
630 case Button1:
631 if ((sel = tns_translate(&tns, bev->x, bev->y)) >= 0) {
632 if (sel != fileidx) {
633 tns_highlight(&tns, fileidx, false);
634 tns_highlight(&tns, sel, true);
635 fileidx = sel;
636 firstclick = bev->time;
637 redraw();
638 } else if (bev->time - firstclick <= TO_DOUBLE_CLICK) {
639 mode = MODE_IMAGE;
640 set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
641 load_image(fileidx);
642 redraw();
643 } else {
644 firstclick = bev->time;
645 }
646 }
647 break;
648 case Button3:
649 if ((sel = tns_translate(&tns, bev->x, bev->y)) >= 0) {
650 files[sel].marked = !files[sel].marked;
651 markcnt += files[sel].marked ? 1 : -1;
652 tns_mark(&tns, sel, files[sel].marked);
653 redraw();
654 }
655 break;
656 case Button4:
657 case Button5:
658 if (tns_scroll(&tns, bev->button == Button4 ? DIR_UP : DIR_DOWN,
659 (bev->state & ControlMask) != 0))
660 redraw();
661 break;
662 }
663 }
664 prefix = 0;
665}
666
667void run(void)
668{
669 int xfd;
670 fd_set fds;
671 struct timeval timeout;
672 bool discard, reload, to_set;
673 XEvent ev, nextev;
674
675 set_timeout(redraw, 25, false);
676
677 while (true) {
678 while (mode == MODE_THUMB && tns.loadnext < filecnt &&
679 XPending(win.env.dpy) == 0)
680 {
681 /* load thumbnails */
682 reload = tns.loadnext != tns.cnt;
683 set_timeout(redraw, TO_REDRAW_THUMBS, false);
684 if (tns_load(&tns, tns.loadnext, reload)) {
685 if (!reload)
686 tns.cnt++;
687 } else {
688 remove_file(tns.loadnext, false);
689 if (reload)
690 tns.dirty = true;
691 }
692 while (tns.loadnext < filecnt && tns.thumbs[tns.loadnext].loaded)
693 tns.loadnext++;
694 if (tns.loadnext >= filecnt)
695 redraw();
696 else
697 check_timeouts(NULL);
698 }
699
700 while (XPending(win.env.dpy) == 0
701 && ((to_set = check_timeouts(&timeout)) || info.fd != -1))
702 {
703 /* check for timeouts & input */
704 xfd = ConnectionNumber(win.env.dpy);
705 FD_ZERO(&fds);
706 FD_SET(xfd, &fds);
707 if (info.fd != -1) {
708 FD_SET(info.fd, &fds);
709 xfd = MAX(xfd, info.fd);
710 }
711 select(xfd + 1, &fds, 0, 0, to_set ? &timeout : NULL);
712 if (info.fd != -1 && FD_ISSET(info.fd, &fds))
713 read_info();
714 }
715
716 do {
717 XNextEvent(win.env.dpy, &ev);
718 discard = false;
719 if (XEventsQueued(win.env.dpy, QueuedAlready) > 0) {
720 XPeekEvent(win.env.dpy, &nextev);
721 switch (ev.type) {
722 case ConfigureNotify:
723 discard = ev.type == nextev.type;
724 break;
725 case KeyPress:
726 discard = (nextev.type == KeyPress || nextev.type == KeyRelease)
727 && ev.xkey.keycode == nextev.xkey.keycode;
728 break;
729 }
730 }
731 } while (discard);
732
733 switch (ev.type) {
734 /* handle events */
735 case ButtonPress:
736 on_buttonpress(&ev.xbutton);
737 break;
738 case ClientMessage:
739 if ((Atom) ev.xclient.data.l[0] == atoms[ATOM_WM_DELETE_WINDOW])
740 return;
741 break;
742 case ConfigureNotify:
743 if (win_configure(&win, &ev.xconfigure)) {
744 if (mode == MODE_IMAGE) {
745 img.dirty = true;
746 img.checkpan = true;
747 } else {
748 tns.dirty = true;
749 }
750 if (!resized || win.fullscreen) {
751 redraw();
752 set_timeout(clear_resize, TO_REDRAW_RESIZE, false);
753 resized = true;
754 } else {
755 set_timeout(redraw, TO_REDRAW_RESIZE, false);
756 }
757 }
758 break;
759 case KeyPress:
760 on_keypress(&ev.xkey);
761 break;
762 case MotionNotify:
763 if (mode == MODE_IMAGE) {
764 win_set_cursor(&win, CURSOR_ARROW);
765 set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
766 }
767 break;
768 }
769 }
770}
771
772int fncmp(const void *a, const void *b)
773{
774 return strcoll(((fileinfo_t*) a)->name, ((fileinfo_t*) b)->name);
775}
776
777int main(int argc, char **argv)
778{
779 int i, start;
780 size_t n;
781 ssize_t len;
782 char *filename;
783 const char *homedir, *dsuffix = "";
784 struct stat fstats;
785 r_dir_t dir;
786
787 parse_options(argc, argv);
788
789 if (options->clean_cache) {
790 tns_init(&tns, NULL, 0, NULL, NULL);
791 tns_clean_cache(&tns);
792 exit(EXIT_SUCCESS);
793 }
794
795 if (options->filecnt == 0 && !options->from_stdin) {
796 print_usage();
797 exit(EXIT_FAILURE);
798 }
799
800 if (options->recursive || options->from_stdin)
801 filecnt = FILENAME_CNT;
802 else
803 filecnt = options->filecnt;
804
805 files = (fileinfo_t*) s_malloc(filecnt * sizeof(fileinfo_t));
806 fileidx = 0;
807
808 if (options->from_stdin) {
809 filename = NULL;
810 while ((len = get_line(&filename, &n, stdin)) > 0) {
811 if (filename[len-1] == '\n')
812 filename[len-1] = '\0';
813 check_add_file(filename);
814 }
815 free(filename);
816 }
817
818 for (i = 0; i < options->filecnt; i++) {
819 filename = options->filenames[i];
820
821 if (stat(filename, &fstats) < 0) {
822 warn("could not stat file: %s", filename);
823 continue;
824 }
825 if (!S_ISDIR(fstats.st_mode)) {
826 check_add_file(filename);
827 } else {
828 if (!options->recursive) {
829 warn("ignoring directory: %s", filename);
830 continue;
831 }
832 if (r_opendir(&dir, filename) < 0) {
833 warn("could not open directory: %s", filename);
834 continue;
835 }
836 start = fileidx;
837 while ((filename = r_readdir(&dir)) != NULL) {
838 check_add_file(filename);
839 free((void*) filename);
840 }
841 r_closedir(&dir);
842 if (fileidx - start > 1)
843 qsort(files + start, fileidx - start, sizeof(fileinfo_t), fncmp);
844 }
845 }
846
847 if (fileidx == 0) {
848 fprintf(stderr, "sxiv: no valid image file given, aborting\n");
849 exit(EXIT_FAILURE);
850 }
851
852 filecnt = fileidx;
853 fileidx = options->startnum < filecnt ? options->startnum : 0;
854
855 win_init(&win);
856 img_init(&img, &win);
857
858 if ((homedir = getenv("XDG_CONFIG_HOME")) == NULL || homedir[0] == '\0') {
859 homedir = getenv("HOME");
860 dsuffix = "/.config";
861 }
862 if (homedir != NULL) {
863 char **cmd[] = { &info.cmd, &keyhandler.cmd };
864 const char *name[] = { "image-info", "key-handler" };
865
866 for (i = 0; i < ARRLEN(cmd); i++) {
867 len = strlen(homedir) + strlen(dsuffix) + strlen(name[i]) + 12;
868 *cmd[i] = (char*) s_malloc(len);
869 snprintf(*cmd[i], len, "%s%s/sxiv/exec/%s", homedir, dsuffix, name[i]);
870 if (access(*cmd[i], X_OK) != 0) {
871 free(*cmd[i]);
872 *cmd[i] = NULL;
873 }
874 }
875 } else {
876 warn("could not locate exec directory");
877 }
878 info.fd = -1;
879
880 if (options->thumb_mode) {
881 mode = MODE_THUMB;
882 tns_init(&tns, files, filecnt, &fileidx, &win);
883 while (!tns_load(&tns, 0, false))
884 remove_file(0, false);
885 tns.cnt = 1;
886 } else {
887 mode = MODE_IMAGE;
888 tns.thumbs = NULL;
889 load_image(fileidx);
890 }
891
892 win_open(&win);
893 win_set_cursor(&win, CURSOR_WATCH);
894
895 run();
896 cleanup();
897
898 return 0;
899}