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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 && tns.cnt > 0 && 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 < tns.end) {
372 snprintf(lt, llen, "Loading... %0*d", fw, tns.loadnext);
373 ow_info = false;
374 } else {
375 ow_info = true;
376 }
377 n = snprintf(rt, rlen, "%s%0*d/%d", mark, fw, fileidx + 1, filecnt);
378 } else {
379 n = snprintf(rt, rlen, "%s", mark);
380 if (img.ss.on)
381 n += snprintf(rt + n, rlen - n, "%ds | ", img.ss.delay);
382 if (img.gamma != 0)
383 n += snprintf(rt + n, rlen - n, "G%+d | ", img.gamma);
384 n += snprintf(rt + n, rlen - n, "%3d%% | ", (int) (img.zoom * 100.0));
385 if (img.multi.cnt > 0) {
386 for (fn = 0, i = img.multi.cnt; i > 0; fn++, i /= 10);
387 n += snprintf(rt + n, rlen - n, "%0*d/%d | ",
388 fn, img.multi.sel + 1, img.multi.cnt);
389 }
390 n += snprintf(rt + n, rlen - n, "%0*d/%d", fw, fileidx + 1, filecnt);
391 ow_info = info.cmd == NULL;
392 }
393 if (ow_info) {
394 fn = strlen(files[fileidx].name);
395 if (fn < llen &&
396 win_textwidth(files[fileidx].name, fn, true) +
397 win_textwidth(rt, n, true) < win.w)
398 {
399 strncpy(lt, files[fileidx].name, llen);
400 } else {
401 strncpy(lt, files[fileidx].base, llen);
402 }
403 }
404}
405
406void redraw(void)
407{
408 int t;
409
410 if (mode == MODE_IMAGE) {
411 img_render(&img);
412 if (img.ss.on) {
413 t = img.ss.delay * 1000;
414 if (img.multi.cnt > 0 && img.multi.animate)
415 t = MAX(t, img.multi.length);
416 set_timeout(slideshow, t, false);
417 }
418 } else {
419 tns_render(&tns);
420 }
421 update_info();
422 win_draw(&win);
423 reset_timeout(redraw);
424 reset_cursor();
425}
426
427void reset_cursor(void)
428{
429 int i;
430 cursor_t cursor = CURSOR_NONE;
431
432 if (mode == MODE_IMAGE) {
433 for (i = 0; i < ARRLEN(timeouts); i++) {
434 if (timeouts[i].handler == reset_cursor) {
435 if (timeouts[i].active)
436 cursor = CURSOR_ARROW;
437 break;
438 }
439 }
440 } else {
441 if (tns.loadnext < tns.end)
442 cursor = CURSOR_WATCH;
443 else
444 cursor = CURSOR_ARROW;
445 }
446 win_set_cursor(&win, cursor);
447}
448
449void animate(void)
450{
451 if (img_frame_animate(&img)) {
452 redraw();
453 set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
454 }
455}
456
457void slideshow(void)
458{
459 load_image(fileidx + 1 < filecnt ? fileidx + 1 : 0);
460 redraw();
461}
462
463void clear_resize(void)
464{
465 resized = false;
466}
467
468void run_key_handler(const char *key, unsigned int mask)
469{
470 pid_t pid;
471 int i, j, retval, status;
472 int fcnt = mode == MODE_THUMB && markcnt > 0 ? markcnt : 1;
473 bool changed = false;
474 char **args, kstr[32], oldbar[sizeof(win.bar.l)];
475 struct stat *oldst, newst;
476 struct { int fn; struct stat st; } *finfo;
477
478 if (keyhandler.cmd == NULL) {
479 if (!keyhandler.warned) {
480 warn("key handler not installed");
481 keyhandler.warned = true;
482 }
483 return;
484 }
485 if (key == NULL)
486 return;
487
488 finfo = s_malloc(fcnt * sizeof(*finfo));
489 args = s_malloc((fcnt + 3) * sizeof(*args));
490 args[0] = keyhandler.cmd;
491 args[1] = kstr;
492 args[fcnt+2] = NULL;
493 if (mode == MODE_IMAGE || markcnt == 0) {
494 finfo[0].fn = fileidx;
495 stat(files[fileidx].path, &finfo[0].st);
496 args[2] = (char*) files[fileidx].path;
497 } else for (i = j = 0; i < filecnt; i++) {
498 if (files[i].marked) {
499 finfo[j].fn = i;
500 stat(files[i].path, &finfo[j++].st);
501 args[j+1] = (char*) files[i].path;
502 }
503 }
504 snprintf(kstr, sizeof(kstr), "%s%s%s%s",
505 mask & ControlMask ? "C-" : "",
506 mask & Mod1Mask ? "M-" : "",
507 mask & ShiftMask ? "S-" : "", key);
508
509 memcpy(oldbar, win.bar.l, sizeof(win.bar.l));
510 strncpy(win.bar.l, "Running key handler...", sizeof(win.bar.l));
511 win_draw(&win);
512 win_set_cursor(&win, CURSOR_WATCH);
513
514 if ((pid = fork()) == 0) {
515 execv(keyhandler.cmd, args);
516 warn("could not exec key handler");
517 exit(EXIT_FAILURE);
518 } else if (pid < 0) {
519 warn("could not fork key handler");
520 goto end;
521 }
522 waitpid(pid, &status, 0);
523 retval = WEXITSTATUS(status);
524 if (WIFEXITED(status) == 0 || retval != 0)
525 warn("key handler exited with non-zero return value: %d", retval);
526
527 for (i = 0; i < fcnt; i++) {
528 oldst = &finfo[i].st;
529 if (stat(files[finfo[i].fn].path, &newst) != 0 ||
530 memcmp(&oldst->st_mtime, &newst.st_mtime, sizeof(newst.st_mtime)) != 0)
531 {
532 if (tns.thumbs != NULL) {
533 tns_unload(&tns, finfo[i].fn);
534 tns.loadnext = MIN(tns.loadnext, finfo[i].fn);
535 }
536 changed = true;
537 }
538 }
539end:
540 if (mode == MODE_IMAGE) {
541 if (changed) {
542 img_close(&img, true);
543 load_image(fileidx);
544 } else if (info.cmd != NULL) {
545 memcpy(win.bar.l, oldbar, sizeof(win.bar.l));
546 }
547 }
548 reset_cursor();
549 redraw();
550 free(finfo);
551 free(args);
552}
553
554#define MODMASK(mask) ((mask) & (ShiftMask|ControlMask|Mod1Mask))
555
556void on_keypress(XKeyEvent *kev)
557{
558 int i;
559 unsigned int sh;
560 KeySym ksym, shksym;
561 char key;
562 bool dirty = false;
563
564 if (kev == NULL)
565 return;
566
567 if (kev->state & ShiftMask) {
568 kev->state &= ~ShiftMask;
569 XLookupString(kev, &key, 1, &shksym, NULL);
570 kev->state |= ShiftMask;
571 }
572 XLookupString(kev, &key, 1, &ksym, NULL);
573 sh = (kev->state & ShiftMask) && ksym != shksym ? ShiftMask : 0;
574
575 if (IsModifierKey(ksym))
576 return;
577 if (ksym == XK_Escape && MODMASK(kev->state) == 0) {
578 extprefix = False;
579 } else if (extprefix) {
580 run_key_handler(XKeysymToString(ksym), kev->state & ~sh);
581 extprefix = False;
582 } else if (key >= '0' && key <= '9') {
583 /* number prefix for commands */
584 prefix = prefix * 10 + (int) (key - '0');
585 return;
586 } else for (i = 0; i < ARRLEN(keys); i++) {
587 if (keys[i].ksym == ksym &&
588 MODMASK(keys[i].mask | sh) == MODMASK(kev->state) &&
589 keys[i].cmd >= 0 && keys[i].cmd < CMD_COUNT &&
590 (cmds[keys[i].cmd].mode < 0 || cmds[keys[i].cmd].mode == mode))
591 {
592 if (cmds[keys[i].cmd].func(keys[i].arg))
593 dirty = true;
594 }
595 }
596 if (dirty)
597 redraw();
598 prefix = 0;
599}
600
601void on_buttonpress(XButtonEvent *bev)
602{
603 int i, sel;
604 bool dirty = false;
605 static Time firstclick;
606
607 if (bev == NULL)
608 return;
609
610 if (mode == MODE_IMAGE) {
611 win_set_cursor(&win, CURSOR_ARROW);
612 set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
613
614 for (i = 0; i < ARRLEN(buttons); i++) {
615 if (buttons[i].button == bev->button &&
616 MODMASK(buttons[i].mask) == MODMASK(bev->state) &&
617 buttons[i].cmd >= 0 && buttons[i].cmd < CMD_COUNT &&
618 (cmds[buttons[i].cmd].mode < 0 || cmds[buttons[i].cmd].mode == mode))
619 {
620 if (cmds[buttons[i].cmd].func(buttons[i].arg))
621 dirty = true;
622 }
623 }
624 if (dirty)
625 redraw();
626 } else {
627 /* thumbnail mode (hard-coded) */
628 switch (bev->button) {
629 case Button1:
630 if ((sel = tns_translate(&tns, bev->x, bev->y)) >= 0) {
631 if (sel != fileidx) {
632 tns_highlight(&tns, fileidx, false);
633 tns_highlight(&tns, sel, true);
634 fileidx = sel;
635 firstclick = bev->time;
636 redraw();
637 } else if (bev->time - firstclick <= TO_DOUBLE_CLICK) {
638 mode = MODE_IMAGE;
639 set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
640 load_image(fileidx);
641 redraw();
642 } else {
643 firstclick = bev->time;
644 }
645 }
646 break;
647 case Button3:
648 if ((sel = tns_translate(&tns, bev->x, bev->y)) >= 0) {
649 files[sel].marked = !files[sel].marked;
650 markcnt += files[sel].marked ? 1 : -1;
651 tns_mark(&tns, sel, files[sel].marked);
652 redraw();
653 }
654 break;
655 case Button4:
656 case Button5:
657 if (tns_scroll(&tns, bev->button == Button4 ? DIR_UP : DIR_DOWN,
658 (bev->state & ControlMask) != 0))
659 redraw();
660 break;
661 }
662 }
663 prefix = 0;
664}
665
666void run(void)
667{
668 int xfd;
669 fd_set fds;
670 struct timeval timeout;
671 bool discard, to_set;
672 XEvent ev, nextev;
673
674 set_timeout(redraw, 25, false);
675
676 while (true) {
677 while (mode == MODE_THUMB && tns.loadnext < tns.end &&
678 XPending(win.env.dpy) == 0)
679 {
680 /* load thumbnails */
681 set_timeout(redraw, TO_REDRAW_THUMBS, false);
682 if (!tns_load(&tns, tns.loadnext, false)) {
683 remove_file(tns.loadnext, false);
684 tns.dirty = true;
685 }
686 while (tns.loadnext < tns.end && tns.thumbs[tns.loadnext].im != NULL)
687 tns.loadnext++;
688 if (tns.loadnext >= tns.end)
689 redraw();
690 else
691 check_timeouts(NULL);
692 }
693
694 while (XPending(win.env.dpy) == 0
695 && ((to_set = check_timeouts(&timeout)) || info.fd != -1))
696 {
697 /* check for timeouts & input */
698 xfd = ConnectionNumber(win.env.dpy);
699 FD_ZERO(&fds);
700 FD_SET(xfd, &fds);
701 if (info.fd != -1) {
702 FD_SET(info.fd, &fds);
703 xfd = MAX(xfd, info.fd);
704 }
705 select(xfd + 1, &fds, 0, 0, to_set ? &timeout : NULL);
706 if (info.fd != -1 && FD_ISSET(info.fd, &fds))
707 read_info();
708 }
709
710 do {
711 XNextEvent(win.env.dpy, &ev);
712 discard = false;
713 if (XEventsQueued(win.env.dpy, QueuedAlready) > 0) {
714 XPeekEvent(win.env.dpy, &nextev);
715 switch (ev.type) {
716 case ConfigureNotify:
717 discard = ev.type == nextev.type;
718 break;
719 case KeyPress:
720 discard = (nextev.type == KeyPress || nextev.type == KeyRelease)
721 && ev.xkey.keycode == nextev.xkey.keycode;
722 break;
723 }
724 }
725 } while (discard);
726
727 switch (ev.type) {
728 /* handle events */
729 case ButtonPress:
730 on_buttonpress(&ev.xbutton);
731 break;
732 case ClientMessage:
733 if ((Atom) ev.xclient.data.l[0] == atoms[ATOM_WM_DELETE_WINDOW])
734 return;
735 break;
736 case ConfigureNotify:
737 if (win_configure(&win, &ev.xconfigure)) {
738 if (mode == MODE_IMAGE) {
739 img.dirty = true;
740 img.checkpan = true;
741 } else {
742 tns.dirty = true;
743 }
744 if (!resized || win.fullscreen) {
745 redraw();
746 set_timeout(clear_resize, TO_REDRAW_RESIZE, false);
747 resized = true;
748 } else {
749 set_timeout(redraw, TO_REDRAW_RESIZE, false);
750 }
751 }
752 break;
753 case KeyPress:
754 on_keypress(&ev.xkey);
755 break;
756 case MotionNotify:
757 if (mode == MODE_IMAGE) {
758 win_set_cursor(&win, CURSOR_ARROW);
759 set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
760 }
761 break;
762 }
763 }
764}
765
766int fncmp(const void *a, const void *b)
767{
768 return strcoll(((fileinfo_t*) a)->name, ((fileinfo_t*) b)->name);
769}
770
771int main(int argc, char **argv)
772{
773 int i, start;
774 size_t n;
775 ssize_t len;
776 char *filename;
777 const char *homedir, *dsuffix = "";
778 struct stat fstats;
779 r_dir_t dir;
780
781 parse_options(argc, argv);
782
783 if (options->clean_cache) {
784 tns_init(&tns, NULL, 0, NULL, NULL);
785 tns_clean_cache(&tns);
786 exit(EXIT_SUCCESS);
787 }
788
789 if (options->filecnt == 0 && !options->from_stdin) {
790 print_usage();
791 exit(EXIT_FAILURE);
792 }
793
794 if (options->recursive || options->from_stdin)
795 filecnt = FILENAME_CNT;
796 else
797 filecnt = options->filecnt;
798
799 files = (fileinfo_t*) s_malloc(filecnt * sizeof(fileinfo_t));
800 fileidx = 0;
801
802 if (options->from_stdin) {
803 filename = NULL;
804 while ((len = get_line(&filename, &n, stdin)) > 0) {
805 if (filename[len-1] == '\n')
806 filename[len-1] = '\0';
807 check_add_file(filename);
808 }
809 free(filename);
810 }
811
812 for (i = 0; i < options->filecnt; i++) {
813 filename = options->filenames[i];
814
815 if (stat(filename, &fstats) < 0) {
816 warn("could not stat file: %s", filename);
817 continue;
818 }
819 if (!S_ISDIR(fstats.st_mode)) {
820 check_add_file(filename);
821 } else {
822 if (!options->recursive) {
823 warn("ignoring directory: %s", filename);
824 continue;
825 }
826 if (r_opendir(&dir, filename) < 0) {
827 warn("could not open directory: %s", filename);
828 continue;
829 }
830 start = fileidx;
831 while ((filename = r_readdir(&dir)) != NULL) {
832 check_add_file(filename);
833 free((void*) filename);
834 }
835 r_closedir(&dir);
836 if (fileidx - start > 1)
837 qsort(files + start, fileidx - start, sizeof(fileinfo_t), fncmp);
838 }
839 }
840
841 if (fileidx == 0) {
842 fprintf(stderr, "sxiv: no valid image file given, aborting\n");
843 exit(EXIT_FAILURE);
844 }
845
846 filecnt = fileidx;
847 fileidx = options->startnum < filecnt ? options->startnum : 0;
848
849 win_init(&win);
850 img_init(&img, &win);
851
852 if ((homedir = getenv("XDG_CONFIG_HOME")) == NULL || homedir[0] == '\0') {
853 homedir = getenv("HOME");
854 dsuffix = "/.config";
855 }
856 if (homedir != NULL) {
857 char **cmd[] = { &info.cmd, &keyhandler.cmd };
858 const char *name[] = { "image-info", "key-handler" };
859
860 for (i = 0; i < ARRLEN(cmd); i++) {
861 len = strlen(homedir) + strlen(dsuffix) + strlen(name[i]) + 12;
862 *cmd[i] = (char*) s_malloc(len);
863 snprintf(*cmd[i], len, "%s%s/sxiv/exec/%s", homedir, dsuffix, name[i]);
864 if (access(*cmd[i], X_OK) != 0) {
865 free(*cmd[i]);
866 *cmd[i] = NULL;
867 }
868 }
869 } else {
870 warn("could not locate exec directory");
871 }
872 info.fd = -1;
873
874 if (options->thumb_mode) {
875 mode = MODE_THUMB;
876 tns_init(&tns, files, filecnt, &fileidx, &win);
877 while (!tns_load(&tns, 0, false))
878 remove_file(0, false);
879 } else {
880 mode = MODE_IMAGE;
881 tns.thumbs = NULL;
882 load_image(fileidx);
883 }
884
885 win_open(&win);
886 win_set_cursor(&win, CURSOR_WATCH);
887
888 run();
889 cleanup();
890
891 return 0;
892}