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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#include "sxiv.h"
20#define _MAPPINGS_CONFIG
21#include "config.h"
22
23#include <stdlib.h>
24#include <string.h>
25#include <fcntl.h>
26#include <unistd.h>
27#include <errno.h>
28#include <locale.h>
29#include <signal.h>
30#include <sys/select.h>
31#include <sys/stat.h>
32#include <sys/wait.h>
33#include <time.h>
34#include <X11/keysym.h>
35#include <X11/XF86keysym.h>
36
37typedef struct {
38 struct timeval when;
39 bool active;
40 timeout_f handler;
41} timeout_t;
42
43/* timeout handler functions: */
44void redraw(void);
45void reset_cursor(void);
46void animate(void);
47void slideshow(void);
48void clear_resize(void);
49
50appmode_t mode;
51arl_t arl;
52img_t img;
53tns_t tns;
54win_t win;
55
56fileinfo_t *files;
57int filecnt, fileidx;
58int alternate;
59int markcnt;
60
61int prefix;
62bool extprefix;
63
64bool resized = false;
65
66typedef struct {
67 int err;
68 char *cmd;
69} extcmd_t;
70
71struct {
72 extcmd_t f;
73 int fd;
74 unsigned int i, lastsep;
75 bool open;
76} info;
77
78struct {
79 extcmd_t f;
80 bool warned;
81} keyhandler;
82
83timeout_t timeouts[] = {
84 { { 0, 0 }, false, redraw },
85 { { 0, 0 }, false, reset_cursor },
86 { { 0, 0 }, false, animate },
87 { { 0, 0 }, false, slideshow },
88 { { 0, 0 }, false, clear_resize },
89};
90
91cursor_t imgcursor[3] = {
92 CURSOR_ARROW, CURSOR_ARROW, CURSOR_ARROW
93};
94
95void cleanup(void)
96{
97 img_close(&img, false);
98 arl_cleanup(&arl);
99 tns_free(&tns);
100 win_close(&win);
101}
102
103void check_add_file(char *filename, bool given)
104{
105 char *path;
106
107 if (*filename == '\0')
108 return;
109
110 if (access(filename, R_OK) < 0 ||
111 (path = realpath(filename, NULL)) == NULL)
112 {
113 if (given)
114 error(0, errno, "%s", filename);
115 return;
116 }
117
118 if (fileidx == filecnt) {
119 filecnt *= 2;
120 files = erealloc(files, filecnt * sizeof(*files));
121 memset(&files[filecnt/2], 0, filecnt/2 * sizeof(*files));
122 }
123
124 files[fileidx].name = estrdup(filename);
125 files[fileidx].path = path;
126 if (given)
127 files[fileidx].flags |= FF_WARN;
128 fileidx++;
129}
130
131void remove_file(int n, bool manual)
132{
133 if (n < 0 || n >= filecnt)
134 return;
135
136 if (filecnt == 1) {
137 if (!manual)
138 fprintf(stderr, "sxiv: no more files to display, aborting\n");
139 exit(manual ? EXIT_SUCCESS : EXIT_FAILURE);
140 }
141 if (files[n].flags & FF_MARK)
142 markcnt--;
143
144 if (files[n].path != files[n].name)
145 free((void*) files[n].path);
146 free((void*) files[n].name);
147
148 if (n + 1 < filecnt) {
149 if (tns.thumbs != NULL) {
150 memmove(tns.thumbs + n, tns.thumbs + n + 1, (filecnt - n - 1) *
151 sizeof(*tns.thumbs));
152 memset(tns.thumbs + filecnt - 1, 0, sizeof(*tns.thumbs));
153 }
154 memmove(files + n, files + n + 1, (filecnt - n - 1) * sizeof(*files));
155 }
156 filecnt--;
157 if (n < fileidx)
158 fileidx--;
159 if (n < alternate)
160 alternate--;
161}
162
163void set_timeout(timeout_f handler, int time, bool overwrite)
164{
165 int i;
166
167 for (i = 0; i < ARRLEN(timeouts); i++) {
168 if (timeouts[i].handler == handler) {
169 if (!timeouts[i].active || overwrite) {
170 gettimeofday(&timeouts[i].when, 0);
171 TV_ADD_MSEC(&timeouts[i].when, time);
172 timeouts[i].active = true;
173 }
174 return;
175 }
176 }
177}
178
179void reset_timeout(timeout_f handler)
180{
181 int i;
182
183 for (i = 0; i < ARRLEN(timeouts); i++) {
184 if (timeouts[i].handler == handler) {
185 timeouts[i].active = false;
186 return;
187 }
188 }
189}
190
191bool check_timeouts(struct timeval *t)
192{
193 int i = 0, tdiff, tmin = -1;
194 struct timeval now;
195
196 while (i < ARRLEN(timeouts)) {
197 if (timeouts[i].active) {
198 gettimeofday(&now, 0);
199 tdiff = TV_DIFF(&timeouts[i].when, &now);
200 if (tdiff <= 0) {
201 timeouts[i].active = false;
202 if (timeouts[i].handler != NULL)
203 timeouts[i].handler();
204 i = tmin = -1;
205 } else if (tmin < 0 || tdiff < tmin) {
206 tmin = tdiff;
207 }
208 }
209 i++;
210 }
211 if (tmin > 0 && t != NULL)
212 TV_SET_MSEC(t, tmin);
213 return tmin > 0;
214}
215
216void open_info(void)
217{
218 static pid_t pid;
219 int pfd[2];
220 char w[12], h[12];
221
222 if (info.f.err != 0 || info.open || win.bar.h == 0)
223 return;
224 if (info.fd != -1) {
225 close(info.fd);
226 kill(pid, SIGTERM);
227 info.fd = -1;
228 }
229 win.bar.l.buf[0] = '\0';
230
231 if (pipe(pfd) < 0)
232 return;
233 if ((pid = fork()) == 0) {
234 close(pfd[0]);
235 dup2(pfd[1], 1);
236 snprintf(w, sizeof(w), "%d", img.w);
237 snprintf(h, sizeof(h), "%d", img.h);
238 execl(info.f.cmd, info.f.cmd, files[fileidx].name, w, h, NULL);
239 error(EXIT_FAILURE, errno, "exec: %s", info.f.cmd);
240 }
241 close(pfd[1]);
242 if (pid < 0) {
243 close(pfd[0]);
244 } else {
245 fcntl(pfd[0], F_SETFL, O_NONBLOCK);
246 info.fd = pfd[0];
247 info.i = info.lastsep = 0;
248 info.open = true;
249 }
250}
251
252void read_info(void)
253{
254 ssize_t i, n;
255 char buf[BAR_L_LEN];
256
257 while (true) {
258 n = read(info.fd, buf, sizeof(buf));
259 if (n < 0 && errno == EAGAIN)
260 return;
261 else if (n == 0)
262 goto end;
263 for (i = 0; i < n; i++) {
264 if (buf[i] == '\n') {
265 if (info.lastsep == 0) {
266 win.bar.l.buf[info.i++] = ' ';
267 info.lastsep = 1;
268 }
269 } else {
270 win.bar.l.buf[info.i++] = buf[i];
271 info.lastsep = 0;
272 }
273 if (info.i + 1 == win.bar.l.size)
274 goto end;
275 }
276 }
277end:
278 info.i -= info.lastsep;
279 win.bar.l.buf[info.i] = '\0';
280 win_draw(&win);
281 close(info.fd);
282 info.fd = -1;
283 while (waitpid(-1, NULL, WNOHANG) > 0);
284}
285
286void load_image(int new)
287{
288 bool prev = new < fileidx;
289 static int current;
290
291 if (new < 0 || new >= filecnt)
292 return;
293
294 if (win.xwin != None)
295 win_set_cursor(&win, CURSOR_WATCH);
296 reset_timeout(slideshow);
297
298 if (new != current)
299 alternate = current;
300
301 img_close(&img, false);
302 while (!img_load(&img, &files[new])) {
303 remove_file(new, false);
304 if (new >= filecnt)
305 new = filecnt - 1;
306 else if (new > 0 && prev)
307 new--;
308 }
309 files[new].flags &= ~FF_WARN;
310 fileidx = current = new;
311
312 info.open = false;
313 open_info();
314 arl_setup(&arl, files[fileidx].path);
315
316 if (img.multi.cnt > 0 && img.multi.animate)
317 set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
318 else
319 reset_timeout(animate);
320}
321
322void bar_put(win_bar_t *bar, const char *fmt, ...)
323{
324 size_t len = bar->size - (bar->p - bar->buf), n;
325 va_list ap;
326
327 va_start(ap, fmt);
328 n = vsnprintf(bar->p, len, fmt, ap);
329 bar->p += MIN(len, n);
330 va_end(ap);
331}
332
333void update_info(void)
334{
335 unsigned int i, fn, fw;
336 char title[256];
337 const char * mark;
338 win_bar_t *l = &win.bar.l, *r = &win.bar.r;
339
340 /* update window title */
341 if (mode == MODE_THUMB) {
342 win_set_title(&win, "sxiv");
343 } else {
344 snprintf(title, sizeof(title), "sxiv - %s", files[fileidx].name);
345 win_set_title(&win, title);
346 }
347
348 /* update bar contents */
349 if (win.bar.h == 0)
350 return;
351 for (fw = 0, i = filecnt; i > 0; fw++, i /= 10);
352 mark = files[fileidx].flags & FF_MARK ? "* " : "";
353 l->p = l->buf;
354 r->p = r->buf;
355 if (mode == MODE_THUMB) {
356 if (tns.loadnext < tns.end)
357 bar_put(l, "Loading... %0*d", fw, tns.loadnext + 1);
358 else if (tns.initnext < filecnt)
359 bar_put(l, "Caching... %0*d", fw, tns.initnext + 1);
360 else
361 strncpy(l->buf, files[fileidx].name, l->size);
362 bar_put(r, "%s%0*d/%d", mark, fw, fileidx + 1, filecnt);
363 } else {
364 bar_put(r, "%s", mark);
365 if (img.ss.on) {
366 if (img.ss.delay % 10 != 0)
367 bar_put(r, "%2.1fs | ", (float)img.ss.delay / 10);
368 else
369 bar_put(r, "%ds | ", img.ss.delay / 10);
370 }
371 if (img.gamma != 0)
372 bar_put(r, "G%+d | ", img.gamma);
373 bar_put(r, "%3d%% | ", (int) (img.zoom * 100.0));
374 if (img.multi.cnt > 0) {
375 for (fn = 0, i = img.multi.cnt; i > 0; fn++, i /= 10);
376 bar_put(r, "%0*d/%d | ", fn, img.multi.sel + 1, img.multi.cnt);
377 }
378 bar_put(r, "%0*d/%d", fw, fileidx + 1, filecnt);
379 if (info.f.err)
380 strncpy(l->buf, files[fileidx].name, l->size);
381 }
382}
383
384int ptr_third_x(void)
385{
386 int x, y;
387
388 win_cursor_pos(&win, &x, &y);
389 return MAX(0, MIN(2, (x / (win.w * 0.33))));
390}
391
392void redraw(void)
393{
394 int t;
395
396 if (mode == MODE_IMAGE) {
397 img_render(&img);
398 if (img.ss.on) {
399 t = img.ss.delay * 100;
400 if (img.multi.cnt > 0 && img.multi.animate)
401 t = MAX(t, img.multi.length);
402 set_timeout(slideshow, t, false);
403 }
404 } else {
405 tns_render(&tns);
406 }
407 update_info();
408 win_draw(&win);
409 reset_timeout(redraw);
410 reset_cursor();
411}
412
413void reset_cursor(void)
414{
415 int c, i;
416 cursor_t cursor = CURSOR_NONE;
417
418 if (mode == MODE_IMAGE) {
419 for (i = 0; i < ARRLEN(timeouts); i++) {
420 if (timeouts[i].handler == reset_cursor) {
421 if (timeouts[i].active) {
422 c = ptr_third_x();
423 c = MAX(fileidx > 0 ? 0 : 1, c);
424 c = MIN(fileidx + 1 < filecnt ? 2 : 1, c);
425 cursor = imgcursor[c];
426 }
427 break;
428 }
429 }
430 } else {
431 if (tns.loadnext < tns.end || tns.initnext < filecnt)
432 cursor = CURSOR_WATCH;
433 else
434 cursor = CURSOR_ARROW;
435 }
436 win_set_cursor(&win, cursor);
437}
438
439void animate(void)
440{
441 if (img_frame_animate(&img)) {
442 redraw();
443 set_timeout(animate, img.multi.frames[img.multi.sel].delay, true);
444 }
445}
446
447void slideshow(void)
448{
449 load_image(fileidx + 1 < filecnt ? fileidx + 1 : 0);
450 redraw();
451}
452
453void clear_resize(void)
454{
455 resized = false;
456}
457
458Bool is_input_ev(Display *dpy, XEvent *ev, XPointer arg)
459{
460 return ev->type == ButtonPress || ev->type == KeyPress;
461}
462
463void run_key_handler(const char *key, unsigned int mask)
464{
465 pid_t pid;
466 FILE *pfs;
467 bool marked = mode == MODE_THUMB && markcnt > 0;
468 bool changed = false;
469 int f, i, pfd[2], status;
470 int fcnt = marked ? markcnt : 1;
471 char kstr[32];
472 struct stat *oldst, st;
473 XEvent dump;
474
475 if (keyhandler.f.err != 0) {
476 if (!keyhandler.warned) {
477 error(0, keyhandler.f.err, "%s", keyhandler.f.cmd);
478 keyhandler.warned = true;
479 }
480 return;
481 }
482 if (key == NULL)
483 return;
484
485 if (pipe(pfd) < 0) {
486 error(0, errno, "pipe");
487 return;
488 }
489 if ((pfs = fdopen(pfd[1], "w")) == NULL) {
490 error(0, errno, "open pipe");
491 close(pfd[0]), close(pfd[1]);
492 return;
493 }
494 oldst = emalloc(fcnt * sizeof(*oldst));
495
496 strncpy(win.bar.l.buf, "Running key handler...", win.bar.l.size);
497 win_draw(&win);
498 win_set_cursor(&win, CURSOR_WATCH);
499
500 snprintf(kstr, sizeof(kstr), "%s%s%s%s",
501 mask & ControlMask ? "C-" : "",
502 mask & Mod1Mask ? "M-" : "",
503 mask & ShiftMask ? "S-" : "", key);
504
505 if ((pid = fork()) == 0) {
506 close(pfd[1]);
507 dup2(pfd[0], 0);
508 execl(keyhandler.f.cmd, keyhandler.f.cmd, kstr, NULL);
509 error(EXIT_FAILURE, errno, "exec: %s", keyhandler.f.cmd);
510 }
511 close(pfd[0]);
512 if (pid < 0) {
513 error(0, errno, "fork");
514 fclose(pfs);
515 goto end;
516 }
517
518 for (f = i = 0; f < fcnt; i++) {
519 if ((marked && (files[i].flags & FF_MARK)) || (!marked && i == fileidx)) {
520 stat(files[i].path, &oldst[f]);
521 fprintf(pfs, "%s\n", files[i].name);
522 f++;
523 }
524 }
525 fclose(pfs);
526 waitpid(pid, &status, 0);
527 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
528 error(0, 0, "%s: Exited abnormally", keyhandler.f.cmd);
529
530 for (f = i = 0; f < fcnt; i++) {
531 if ((marked && (files[i].flags & FF_MARK)) || (!marked && i == fileidx)) {
532 if (stat(files[i].path, &st) != 0 ||
533 memcmp(&oldst[f].st_mtime, &st.st_mtime, sizeof(st.st_mtime)) != 0)
534 {
535 if (tns.thumbs != NULL) {
536 tns_unload(&tns, i);
537 tns.loadnext = MIN(tns.loadnext, i);
538 }
539 changed = true;
540 }
541 f++;
542 }
543 }
544 /* drop user input events that occurred while running the key handler */
545 while (XCheckIfEvent(win.env.dpy, &dump, is_input_ev, NULL));
546
547end:
548 if (mode == MODE_IMAGE) {
549 if (changed) {
550 img_close(&img, true);
551 load_image(fileidx);
552 } else if (info.f.err == 0) {
553 info.open = false;
554 open_info();
555 }
556 }
557 free(oldst);
558 reset_cursor();
559 redraw();
560}
561
562#define MODMASK(mask) ((mask) & (ShiftMask|ControlMask|Mod1Mask))
563
564void on_keypress(XKeyEvent *kev)
565{
566 int i;
567 unsigned int sh;
568 KeySym ksym, shksym;
569 char key;
570 bool dirty = false;
571
572 if (kev->state & ShiftMask) {
573 kev->state &= ~ShiftMask;
574 XLookupString(kev, &key, 1, &shksym, NULL);
575 kev->state |= ShiftMask;
576 }
577 XLookupString(kev, &key, 1, &ksym, NULL);
578 sh = (kev->state & ShiftMask) && ksym != shksym ? ShiftMask : 0;
579
580 if (IsModifierKey(ksym))
581 return;
582 if (ksym == XK_Escape && MODMASK(kev->state) == 0) {
583 extprefix = False;
584 } else if (extprefix) {
585 run_key_handler(XKeysymToString(ksym), kev->state & ~sh);
586 extprefix = False;
587 } else if (key >= '0' && key <= '9') {
588 /* number prefix for commands */
589 prefix = prefix * 10 + (int) (key - '0');
590 return;
591 } else for (i = 0; i < ARRLEN(keys); i++) {
592 if (keys[i].ksym == ksym &&
593 MODMASK(keys[i].mask | sh) == MODMASK(kev->state) &&
594 keys[i].cmd >= 0 && keys[i].cmd < CMD_COUNT &&
595 (cmds[keys[i].cmd].mode < 0 || cmds[keys[i].cmd].mode == mode))
596 {
597 if (cmds[keys[i].cmd].func(keys[i].arg))
598 dirty = true;
599 }
600 }
601 if (dirty)
602 redraw();
603 prefix = 0;
604}
605
606void on_buttonpress(XButtonEvent *bev)
607{
608 int i, sel;
609 bool dirty = false;
610 static Time firstclick;
611
612 if (mode == MODE_IMAGE) {
613 set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
614 reset_cursor();
615
616 for (i = 0; i < ARRLEN(buttons); i++) {
617 if (buttons[i].button == bev->button &&
618 MODMASK(buttons[i].mask) == MODMASK(bev->state) &&
619 buttons[i].cmd >= 0 && buttons[i].cmd < CMD_COUNT &&
620 (cmds[buttons[i].cmd].mode < 0 || cmds[buttons[i].cmd].mode == mode))
621 {
622 if (cmds[buttons[i].cmd].func(buttons[i].arg))
623 dirty = true;
624 }
625 }
626 if (dirty)
627 redraw();
628 } else {
629 /* thumbnail mode (hard-coded) */
630 switch (bev->button) {
631 case Button1:
632 if ((sel = tns_translate(&tns, bev->x, bev->y)) >= 0) {
633 if (sel != fileidx) {
634 tns_highlight(&tns, fileidx, false);
635 tns_highlight(&tns, sel, true);
636 fileidx = sel;
637 firstclick = bev->time;
638 redraw();
639 } else if (bev->time - firstclick <= TO_DOUBLE_CLICK) {
640 mode = MODE_IMAGE;
641 set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
642 load_image(fileidx);
643 redraw();
644 } else {
645 firstclick = bev->time;
646 }
647 }
648 break;
649 case Button3:
650 if ((sel = tns_translate(&tns, bev->x, bev->y)) >= 0) {
651 files[sel].flags ^= FF_MARK;
652 markcnt += files[sel].flags & FF_MARK ? 1 : -1;
653 tns_mark(&tns, sel, !!(files[sel].flags & FF_MARK));
654 redraw();
655 }
656 break;
657 case Button4:
658 case Button5:
659 if (tns_scroll(&tns, bev->button == Button4 ? DIR_UP : DIR_DOWN,
660 (bev->state & ControlMask) != 0))
661 redraw();
662 break;
663 }
664 }
665 prefix = 0;
666}
667
668const struct timespec ten_ms = {0, 10000000};
669
670void run(void)
671{
672 int xfd;
673 fd_set fds;
674 struct timeval timeout;
675 bool discard, init_thumb, load_thumb, to_set;
676 XEvent ev, nextev;
677
678 while (true) {
679 to_set = check_timeouts(&timeout);
680 init_thumb = mode == MODE_THUMB && tns.initnext < filecnt;
681 load_thumb = mode == MODE_THUMB && tns.loadnext < tns.end;
682
683 if ((init_thumb || load_thumb || to_set || info.fd != -1 ||
684 arl.fd != -1) && XPending(win.env.dpy) == 0)
685 {
686 if (load_thumb) {
687 set_timeout(redraw, TO_REDRAW_THUMBS, false);
688 if (!tns_load(&tns, tns.loadnext, false, false)) {
689 remove_file(tns.loadnext, false);
690 tns.dirty = true;
691 }
692 if (tns.loadnext >= tns.end)
693 redraw();
694 } else if (init_thumb) {
695 set_timeout(redraw, TO_REDRAW_THUMBS, false);
696 if (!tns_load(&tns, tns.initnext, false, true))
697 remove_file(tns.initnext, false);
698 } else {
699 xfd = ConnectionNumber(win.env.dpy);
700 FD_ZERO(&fds);
701 FD_SET(xfd, &fds);
702 if (info.fd != -1) {
703 FD_SET(info.fd, &fds);
704 xfd = MAX(xfd, info.fd);
705 }
706 if (arl.fd != -1) {
707 FD_SET(arl.fd, &fds);
708 xfd = MAX(xfd, arl.fd);
709 }
710 select(xfd + 1, &fds, 0, 0, to_set ? &timeout : NULL);
711 if (info.fd != -1 && FD_ISSET(info.fd, &fds))
712 read_info();
713 if (arl.fd != -1 && FD_ISSET(arl.fd, &fds)) {
714 if (arl_handle(&arl)) {
715 /* when too fast, imlib2 can't load the image */
716 nanosleep(&ten_ms, NULL);
717 load_image(fileidx);
718 redraw();
719 }
720 }
721 }
722 continue;
723 }
724
725 do {
726 XNextEvent(win.env.dpy, &ev);
727 discard = false;
728 if (XEventsQueued(win.env.dpy, QueuedAlready) > 0) {
729 XPeekEvent(win.env.dpy, &nextev);
730 switch (ev.type) {
731 case ConfigureNotify:
732 case MotionNotify:
733 discard = ev.type == nextev.type;
734 break;
735 case KeyPress:
736 discard = (nextev.type == KeyPress || nextev.type == KeyRelease)
737 && ev.xkey.keycode == nextev.xkey.keycode;
738 break;
739 }
740 }
741 } while (discard);
742
743 switch (ev.type) {
744 /* handle events */
745 case ButtonPress:
746 on_buttonpress(&ev.xbutton);
747 break;
748 case ClientMessage:
749 if ((Atom) ev.xclient.data.l[0] == atoms[ATOM_WM_DELETE_WINDOW])
750 cmds[g_quit].func(0);
751 break;
752 case ConfigureNotify:
753 if (win_configure(&win, &ev.xconfigure)) {
754 if (mode == MODE_IMAGE) {
755 img.dirty = true;
756 img.checkpan = true;
757 } else {
758 tns.dirty = true;
759 }
760 if (!resized || win.fullscreen) {
761 redraw();
762 set_timeout(clear_resize, TO_REDRAW_RESIZE, false);
763 resized = true;
764 } else {
765 set_timeout(redraw, TO_REDRAW_RESIZE, false);
766 }
767 }
768 break;
769 case KeyPress:
770 on_keypress(&ev.xkey);
771 break;
772 case MotionNotify:
773 if (mode == MODE_IMAGE) {
774 set_timeout(reset_cursor, TO_CURSOR_HIDE, true);
775 reset_cursor();
776 }
777 break;
778 }
779 }
780}
781
782int fncmp(const void *a, const void *b)
783{
784 return strcoll(((fileinfo_t*) a)->name, ((fileinfo_t*) b)->name);
785}
786
787int main(int argc, char **argv)
788{
789 int i, start;
790 size_t n;
791 ssize_t len;
792 char *filename;
793 const char *homedir, *dsuffix = "";
794 struct stat fstats;
795 r_dir_t dir;
796
797 signal(SIGPIPE, SIG_IGN);
798
799 setlocale(LC_COLLATE, "");
800
801 parse_options(argc, argv);
802
803 if (options->clean_cache) {
804 tns_init(&tns, NULL, NULL, NULL, NULL);
805 tns_clean_cache(&tns);
806 exit(EXIT_SUCCESS);
807 }
808
809 if (options->filecnt == 0 && !options->from_stdin) {
810 print_usage();
811 exit(EXIT_FAILURE);
812 }
813
814 if (options->recursive || options->from_stdin)
815 filecnt = 1024;
816 else
817 filecnt = options->filecnt;
818
819 files = emalloc(filecnt * sizeof(*files));
820 memset(files, 0, filecnt * sizeof(*files));
821 fileidx = 0;
822
823 if (options->from_stdin) {
824 n = 0;
825 filename = NULL;
826 while ((len = getline(&filename, &n, stdin)) > 0) {
827 if (filename[len-1] == '\n')
828 filename[len-1] = '\0';
829 check_add_file(filename, true);
830 }
831 free(filename);
832 }
833
834 for (i = 0; i < options->filecnt; i++) {
835 filename = options->filenames[i];
836
837 if (stat(filename, &fstats) < 0) {
838 error(0, errno, "%s", filename);
839 continue;
840 }
841 if (!S_ISDIR(fstats.st_mode)) {
842 check_add_file(filename, true);
843 } else {
844 if (r_opendir(&dir, filename, options->recursive) < 0) {
845 error(0, errno, "%s", filename);
846 continue;
847 }
848 start = fileidx;
849 while ((filename = r_readdir(&dir)) != NULL) {
850 check_add_file(filename, false);
851 free((void*) filename);
852 }
853 r_closedir(&dir);
854 if (fileidx - start > 1)
855 qsort(files + start, fileidx - start, sizeof(fileinfo_t), fncmp);
856 }
857 }
858
859 if (fileidx == 0)
860 error(EXIT_FAILURE, 0, "No valid image file given, aborting");
861
862 filecnt = fileidx;
863 fileidx = options->startnum < filecnt ? options->startnum : 0;
864
865 for (i = 0; i < ARRLEN(buttons); i++) {
866 if (buttons[i].cmd == i_cursor_navigate) {
867 imgcursor[0] = CURSOR_LEFT;
868 imgcursor[2] = CURSOR_RIGHT;
869 break;
870 }
871 }
872
873 win_init(&win);
874 img_init(&img, &win);
875 arl_init(&arl);
876
877 if ((homedir = getenv("XDG_CONFIG_HOME")) == NULL || homedir[0] == '\0') {
878 homedir = getenv("HOME");
879 dsuffix = "/.config";
880 }
881 if (homedir != NULL) {
882 extcmd_t *cmd[] = { &info.f, &keyhandler.f };
883 const char *name[] = { "image-info", "key-handler" };
884
885 for (i = 0; i < ARRLEN(cmd); i++) {
886 n = strlen(homedir) + strlen(dsuffix) + strlen(name[i]) + 12;
887 cmd[i]->cmd = (char*) emalloc(n);
888 snprintf(cmd[i]->cmd, n, "%s%s/sxiv/exec/%s", homedir, dsuffix, name[i]);
889 if (access(cmd[i]->cmd, X_OK) != 0)
890 cmd[i]->err = errno;
891 }
892 } else {
893 error(0, 0, "Exec directory not found");
894 }
895 info.fd = -1;
896
897 if (options->thumb_mode) {
898 mode = MODE_THUMB;
899 tns_init(&tns, files, &filecnt, &fileidx, &win);
900 while (!tns_load(&tns, fileidx, false, false))
901 remove_file(fileidx, false);
902 } else {
903 mode = MODE_IMAGE;
904 tns.thumbs = NULL;
905 load_image(fileidx);
906 }
907 win_open(&win);
908 win_set_cursor(&win, CURSOR_WATCH);
909
910 atexit(cleanup);
911
912 set_timeout(redraw, 25, false);
913
914 run();
915
916 return 0;
917}