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[dmenu.git] / dmenu.c
1 /* See LICENSE file for copyright and license details. */
2 #include <ctype.h>
3 #include <locale.h>
4 #include <stdarg.h>
5 #include <stdio.h>
6 #include <stdlib.h>
7 #include <string.h>
8 #include <strings.h>
9 #include <unistd.h>
10 #include <X11/keysym.h>
11 #include <X11/Xlib.h>
12 #include <X11/Xutil.h>
13 #ifdef XINERAMA
14 #include <X11/extensions/Xinerama.h>
15 #endif
16
17 /* macros */
18 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
19 #define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
20 #define MIN(a, b) ((a) < (b) ? (a) : (b))
21 #define MAX(a, b) ((a) > (b) ? (a) : (b))
22
23 /* enums */
24 enum { ColFG, ColBG, ColLast };
25
26 /* typedefs */
27 typedef struct {
28 int x, y, w, h;
29 unsigned long norm[ColLast];
30 unsigned long sel[ColLast];
31 Drawable drawable;
32 GC gc;
33 struct {
34 XFontStruct *xfont;
35 XFontSet set;
36 int ascent;
37 int descent;
38 int height;
39 } font;
40 } DC; /* draw context */
41
42 typedef struct Item Item;
43 struct Item {
44 char *text;
45 Item *next; /* traverses all items */
46 Item *left, *right; /* traverses items matching current search pattern */
47 };
48
49 /* forward declarations */
50 static void appenditem(Item *i, Item **list, Item **last);
51 static void calcoffsetsh(void);
52 static void calcoffsetsv(void);
53 static char *cistrstr(const char *s, const char *sub);
54 static void cleanup(void);
55 static void drawcursor(void);
56 static void drawmenu(void);
57 static void drawmenuh(void);
58 static void drawmenuv(void);
59 static void drawtext(const char *text, unsigned long col[ColLast]);
60 static void eprint(const char *errstr, ...);
61 static unsigned long getcolor(const char *colstr);
62 static Bool grabkeyboard(void);
63 static void initfont(const char *fontstr);
64 static void kpress(XKeyEvent * e);
65 static void match(char *pattern);
66 static void readstdin(void);
67 static void run(void);
68 static void setup(Bool topbar);
69 static int textnw(const char *text, unsigned int len);
70 static int textw(const char *text);
71
72 #include "config.h"
73
74 /* variables */
75 static char *maxname = NULL;
76 static char *prompt = NULL;
77 static char text[4096];
78 static int cmdw = 0;
79 static int promptw = 0;
80 static int ret = 0;
81 static int cursor = 0;
82 static int screen;
83 static unsigned int mw, mh;
84 static unsigned int numlockmask = 0;
85 static Bool running = True;
86 static Display *dpy;
87 static DC dc;
88 static Item *allitems = NULL; /* first of all items */
89 static Item *item = NULL; /* first of pattern matching items */
90 static Item *sel = NULL;
91 static Item *next = NULL;
92 static Item *prev = NULL;
93 static Item *curr = NULL;
94 static Window parent, win;
95 static int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
96 static char *(*fstrstr)(const char *, const char *) = strstr;
97 static unsigned int lines = 0;
98 static void (*calcoffsets)(void) = calcoffsetsh;
99
100 void
101 appenditem(Item *i, Item **list, Item **last) {
102 if(!(*last))
103 *list = i;
104 else
105 (*last)->right = i;
106 i->left = *last;
107 i->right = NULL;
108 *last = i;
109 }
110
111 void
112 calcoffsetsh(void) {
113 int tw;
114 unsigned int w;
115
116 if(!curr)
117 return;
118 w = promptw + cmdw + 2 * spaceitem;
119 for(next = curr; next; next=next->right) {
120 tw = MIN(textw(next->text), mw / 3);
121 w += tw;
122 if(w > mw)
123 break;
124 }
125 w = promptw + cmdw + 2 * spaceitem;
126 for(prev = curr; prev && prev->left; prev=prev->left) {
127 tw = MIN(textw(prev->left->text), mw / 3);
128 w += tw;
129 if(w > mw)
130 break;
131 }
132 }
133
134 void
135 calcoffsetsv(void) {
136 static unsigned int h;
137
138 if(!curr)
139 return;
140 h = (dc.font.height + 2) * (lines + 1);
141 for(next = curr; next; next=next->right) {
142 h -= dc.font.height + 2;
143 if(h <= 0)
144 break;
145 }
146 h = (dc.font.height + 2) * (lines + 1);
147 for(prev = curr; prev && prev->left; prev=prev->left) {
148 h -= dc.font.height + 2;
149 if(h <= 0)
150 break;
151 }
152 }
153
154 char *
155 cistrstr(const char *s, const char *sub) {
156 int c, csub;
157 unsigned int len;
158
159 if(!sub)
160 return (char *)s;
161 if((c = *sub++) != '\0') {
162 c = tolower(c);
163 len = strlen(sub);
164 do {
165 do {
166 if((csub = *s++) == '\0')
167 return NULL;
168 }
169 while(tolower(csub) != c);
170 }
171 while(strncasecmp(s, sub, len) != 0);
172 s--;
173 }
174 return (char *)s;
175 }
176
177 void
178 cleanup(void) {
179 Item *itm;
180
181 while(allitems) {
182 itm = allitems->next;
183 free(allitems->text);
184 free(allitems);
185 allitems = itm;
186 }
187 if(dc.font.set)
188 XFreeFontSet(dpy, dc.font.set);
189 else
190 XFreeFont(dpy, dc.font.xfont);
191 XFreePixmap(dpy, dc.drawable);
192 XFreeGC(dpy, dc.gc);
193 XDestroyWindow(dpy, win);
194 XUngrabKeyboard(dpy, CurrentTime);
195 }
196
197 void
198 drawcursor(void) {
199 XRectangle r = { dc.x, dc.y + 2, 1, dc.font.height - 2 };
200
201 r.x += textnw(text, cursor) + dc.font.height / 2;
202
203 XSetForeground(dpy, dc.gc, dc.norm[ColFG]);
204 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
205 }
206
207 void
208 drawmenu(void) {
209 dc.x = 0;
210 dc.y = 0;
211 dc.w = mw;
212 dc.h = mh;
213 drawtext(NULL, dc.norm);
214 /* print prompt? */
215 if(prompt) {
216 dc.w = promptw;
217 drawtext(prompt, dc.sel);
218 dc.x += dc.w;
219 }
220 dc.w = mw - dc.x;
221 /* print command */
222 if(cmdw && item && lines == 0)
223 dc.w = cmdw;
224 drawtext(text[0] ? text : NULL, dc.norm);
225 drawcursor();
226 if(curr) {
227 if(lines > 0)
228 drawmenuv();
229 else
230 drawmenuh();
231 }
232 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
233 XFlush(dpy);
234 }
235
236 void
237 drawmenuh(void) {
238 Item *i;
239
240 dc.x += cmdw;
241 dc.w = spaceitem;
242 drawtext(curr->left ? "<" : NULL, dc.norm);
243 dc.x += dc.w;
244 for(i = curr; i != next; i=i->right) {
245 dc.w = MIN(textw(i->text), mw / 3);
246 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
247 dc.x += dc.w;
248 }
249 dc.w = spaceitem;
250 dc.x = mw - dc.w;
251 drawtext(next ? ">" : NULL, dc.norm);
252 }
253
254 void
255 drawmenuv(void) {
256 Item *i;
257
258 dc.x = 0;
259 dc.w = mw;
260 dc.y += dc.font.height + 2;
261 for(i = curr; i != next; i=i->right) {
262 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
263 dc.y += dc.font.height + 2;
264 }
265 drawtext(NULL, dc.norm);
266 }
267
268 void
269 drawtext(const char *text, unsigned long col[ColLast]) {
270 char buf[256];
271 int i, x, y, h, len, olen;
272 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
273
274 XSetForeground(dpy, dc.gc, col[ColBG]);
275 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
276 if(!text)
277 return;
278 olen = strlen(text);
279 h = dc.font.height;
280 y = dc.y + ((h+2) / 2) - (h / 2) + dc.font.ascent;
281 x = dc.x + (h / 2);
282 /* shorten text if necessary */
283 for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
284 if(!len)
285 return;
286 memcpy(buf, text, len);
287 if(len < olen)
288 for(i = len; i && i > len - 3; buf[--i] = '.');
289 XSetForeground(dpy, dc.gc, col[ColFG]);
290 if(dc.font.set)
291 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
292 else
293 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
294 }
295
296 void
297 eprint(const char *errstr, ...) {
298 va_list ap;
299
300 va_start(ap, errstr);
301 vfprintf(stderr, errstr, ap);
302 va_end(ap);
303 exit(EXIT_FAILURE);
304 }
305
306 unsigned long
307 getcolor(const char *colstr) {
308 Colormap cmap = DefaultColormap(dpy, screen);
309 XColor color;
310
311 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
312 eprint("error, cannot allocate color '%s'\n", colstr);
313 return color.pixel;
314 }
315
316 Bool
317 grabkeyboard(void) {
318 unsigned int len;
319
320 for(len = 1000; len; len--) {
321 if(XGrabKeyboard(dpy, parent, True, GrabModeAsync, GrabModeAsync, CurrentTime)
322 == GrabSuccess)
323 break;
324 usleep(1000);
325 }
326 return len > 0;
327 }
328
329 void
330 initfont(const char *fontstr) {
331 char *def, **missing;
332 int i, n;
333
334 if(!fontstr || fontstr[0] == '\0')
335 eprint("error, cannot load font: '%s'\n", fontstr);
336 missing = NULL;
337 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
338 if(missing)
339 XFreeStringList(missing);
340 if(dc.font.set) {
341 XFontStruct **xfonts;
342 char **font_names;
343 dc.font.ascent = dc.font.descent = 0;
344 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
345 for(i = 0; i < n; i++) {
346 dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
347 dc.font.descent = MAX(dc.font.descent, (*xfonts)->descent);
348 xfonts++;
349 }
350 }
351 else {
352 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
353 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
354 eprint("error, cannot load font: '%s'\n", fontstr);
355 dc.font.ascent = dc.font.xfont->ascent;
356 dc.font.descent = dc.font.xfont->descent;
357 }
358 dc.font.height = dc.font.ascent + dc.font.descent;
359 }
360
361 void
362 kpress(XKeyEvent * e) {
363 char buf[sizeof text];
364 int i, num;
365 unsigned int len;
366 KeySym ksym;
367
368 len = strlen(text);
369 buf[0] = '\0';
370 num = XLookupString(e, buf, sizeof buf, &ksym, NULL);
371 if(IsKeypadKey(ksym)) {
372 if(ksym == XK_KP_Enter)
373 ksym = XK_Return;
374 else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
375 ksym = (ksym - XK_KP_0) + XK_0;
376 }
377 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
378 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
379 || IsPrivateKeypadKey(ksym))
380 return;
381 /* first check if a control mask is omitted */
382 if(e->state & ControlMask) {
383 switch (ksym) {
384 default: /* ignore other control sequences */
385 return;
386 case XK_a:
387 case XK_A:
388 ksym = XK_Home;
389 break;
390 case XK_c:
391 case XK_C:
392 ksym = XK_Escape;
393 break;
394 case XK_e:
395 case XK_E:
396 ksym = XK_End;
397 break;
398 case XK_h:
399 case XK_H:
400 ksym = XK_BackSpace;
401 break;
402 case XK_i:
403 case XK_I:
404 ksym = XK_Tab;
405 break;
406 case XK_j:
407 case XK_J:
408 ksym = XK_Return;
409 break;
410 case XK_u:
411 case XK_U:
412 memmove(text, text + cursor, sizeof text - cursor + 1);
413 cursor = 0;
414 match(text);
415 break;
416 case XK_w:
417 case XK_W:
418 if(cursor > 0) {
419 i = cursor;
420 while(i-- > 0 && text[i] == ' ');
421 while(i-- > 0 && text[i] != ' ');
422 memmove(text + i + 1, text + cursor, sizeof text - cursor + 1);
423 cursor = i + 1;
424 match(text);
425 }
426 break;
427 }
428 }
429 if(CLEANMASK(e->state) & Mod1Mask) {
430 switch(ksym) {
431 default: return;
432 case XK_h:
433 ksym = XK_Left;
434 break;
435 case XK_l:
436 ksym = XK_Right;
437 break;
438 case XK_j:
439 ksym = XK_Next;
440 break;
441 case XK_k:
442 ksym = XK_Prior;
443 break;
444 case XK_g:
445 ksym = XK_Home;
446 break;
447 case XK_G:
448 ksym = XK_End;
449 break;
450 case XK_p:
451 {
452 FILE *fp;
453 char *s;
454 if(!(fp = (FILE*)popen("sselp", "r")))
455 eprint("dmenu: Could not popen sselp\n");
456 s = fgets(buf, sizeof buf, fp);
457 pclose(fp);
458 if(s == NULL)
459 return;
460 }
461 num = strlen(buf);
462 if(num && buf[num-1] == '\n')
463 buf[--num] = '\0';
464 break;
465 }
466 }
467 switch(ksym) {
468 default:
469 num = MIN(num, sizeof text - cursor);
470 if(num && !iscntrl((int) buf[0])) {
471 memmove(text + cursor + num, text + cursor, sizeof text - cursor - num);
472 memcpy(text + cursor, buf, num);
473 cursor+=num;
474 match(text);
475 }
476 break;
477 case XK_BackSpace:
478 if(cursor > 0) {
479 memmove(text + cursor - 1, text + cursor, sizeof text - cursor + 1);
480 cursor--;
481 match(text);
482 }
483 break;
484 case XK_Delete:
485 memmove(text + cursor, text + cursor + 1, sizeof text - cursor);
486 match(text);
487 break;
488 case XK_End:
489 if(cursor < len) {
490 cursor = len;
491 break;
492 }
493 while(next) {
494 sel = curr = next;
495 calcoffsets();
496 }
497 while(sel && sel->right)
498 sel = sel->right;
499 break;
500 case XK_Escape:
501 ret = 1;
502 running = False;
503 break;
504 case XK_Home:
505 if(sel == item) {
506 cursor = 0;
507 break;
508 }
509 sel = curr = item;
510 calcoffsets();
511 break;
512 case XK_Left:
513 case XK_Up:
514 if(sel && sel->left){
515 sel=sel->left;
516 if(sel->right == curr) {
517 curr = prev;
518 calcoffsets();
519 }
520 }
521 else if(cursor > 0)
522 cursor--;
523 else
524 return;
525 break;
526 case XK_Next:
527 if(!next)
528 return;
529 sel = curr = next;
530 calcoffsets();
531 break;
532 case XK_Prior:
533 if(!prev)
534 return;
535 sel = curr = prev;
536 calcoffsets();
537 break;
538 case XK_Return:
539 if((e->state & ShiftMask) || !sel)
540 fprintf(stdout, "%s", text);
541 else
542 fprintf(stdout, "%s", sel->text);
543 fflush(stdout);
544 running = False;
545 break;
546 case XK_Right:
547 case XK_Down:
548 if(cursor < len)
549 cursor++;
550 else if(sel && sel->right) {
551 sel=sel->right;
552 if(sel == next) {
553 curr = next;
554 calcoffsets();
555 }
556 }
557 else
558 return;
559 break;
560 case XK_Tab:
561 if(!sel)
562 return;
563 strncpy(text, sel->text, sizeof text);
564 cursor = strlen(text);
565 match(text);
566 break;
567 }
568 drawmenu();
569 }
570
571 void
572 match(char *pattern) {
573 unsigned int plen;
574 Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
575
576 if(!pattern)
577 return;
578 plen = strlen(pattern);
579 item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
580 for(i = allitems; i; i = i->next)
581 if(!fstrncmp(pattern, i->text, plen + 1))
582 appenditem(i, &lexact, &exactend);
583 else if(!fstrncmp(pattern, i->text, plen))
584 appenditem(i, &lprefix, &prefixend);
585 else if(fstrstr(i->text, pattern))
586 appenditem(i, &lsubstr, &substrend);
587 if(lexact) {
588 item = lexact;
589 itemend = exactend;
590 }
591 if(lprefix) {
592 if(itemend) {
593 itemend->right = lprefix;
594 lprefix->left = itemend;
595 }
596 else
597 item = lprefix;
598 itemend = prefixend;
599 }
600 if(lsubstr) {
601 if(itemend) {
602 itemend->right = lsubstr;
603 lsubstr->left = itemend;
604 }
605 else
606 item = lsubstr;
607 }
608 curr = prev = next = sel = item;
609 calcoffsets();
610 }
611
612 void
613 readstdin(void) {
614 char *p, buf[sizeof text];
615 unsigned int len = 0, max = 0;
616 Item *i, *new;
617
618 i = NULL;
619 while(fgets(buf, sizeof buf, stdin)) {
620 len = strlen(buf);
621 if(buf[len-1] == '\n')
622 buf[--len] = '\0';
623 if(!(p = strdup(buf)))
624 eprint("fatal: could not strdup() %u bytes\n", len);
625 if(max < len || !maxname) {
626 maxname = p;
627 max = len;
628 }
629 if(!(new = (Item *)malloc(sizeof(Item))))
630 eprint("fatal: could not malloc() %u bytes\n", sizeof(Item));
631 new->next = new->left = new->right = NULL;
632 new->text = p;
633 if(!i)
634 allitems = new;
635 else
636 i->next = new;
637 i = new;
638 }
639 }
640
641 void
642 run(void) {
643 XEvent ev;
644
645 /* main event loop */
646 while(running && !XNextEvent(dpy, &ev))
647 switch (ev.type) {
648 default: /* ignore all crap */
649 break;
650 case KeyPress:
651 kpress(&ev.xkey);
652 break;
653 case Expose:
654 if(ev.xexpose.count == 0)
655 drawmenu();
656 break;
657 case VisibilityNotify:
658 if (ev.xvisibility.state != VisibilityUnobscured)
659 XRaiseWindow(dpy, win);
660 break;
661 }
662 }
663
664 void
665 setup(Bool topbar) {
666 int i, j, x, y;
667 #if XINERAMA
668 int n;
669 XineramaScreenInfo *info = NULL;
670 #endif
671 XModifierKeymap *modmap;
672 XSetWindowAttributes wa;
673 XWindowAttributes pwa;
674
675 /* init modifier map */
676 modmap = XGetModifierMapping(dpy);
677 for(i = 0; i < 8; i++)
678 for(j = 0; j < modmap->max_keypermod; j++) {
679 if(modmap->modifiermap[i * modmap->max_keypermod + j]
680 == XKeysymToKeycode(dpy, XK_Num_Lock))
681 numlockmask = (1 << i);
682 }
683 XFreeModifiermap(modmap);
684
685 /* style */
686 dc.norm[ColBG] = getcolor(normbgcolor);
687 dc.norm[ColFG] = getcolor(normfgcolor);
688 dc.sel[ColBG] = getcolor(selbgcolor);
689 dc.sel[ColFG] = getcolor(selfgcolor);
690 initfont(font);
691
692 /* menu window */
693 wa.override_redirect = True;
694 wa.background_pixmap = ParentRelative;
695 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask | VisibilityChangeMask;
696
697 /* menu window geometry */
698 mh = (dc.font.height + 2) * (lines + 1);
699 #if XINERAMA
700 if(parent == RootWindow(dpy, screen) && XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
701 i = 0;
702 if(n > 1) {
703 int di;
704 unsigned int dui;
705 Window dummy;
706 if(XQueryPointer(dpy, parent, &dummy, &dummy, &x, &y, &di, &di, &dui))
707 for(i = 0; i < n; i++)
708 if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
709 break;
710 }
711 x = info[i].x_org;
712 y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
713 mw = info[i].width;
714 XFree(info);
715 }
716 else
717 #endif
718 {
719 XGetWindowAttributes(dpy, parent, &pwa);
720 x = 0;
721 y = topbar ? 0 : pwa.height - mh;
722 mw = pwa.width;
723 }
724
725 win = XCreateWindow(dpy, parent, x, y, mw, mh, 0,
726 DefaultDepth(dpy, screen), CopyFromParent,
727 DefaultVisual(dpy, screen),
728 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
729
730 /* pixmap */
731 dc.drawable = XCreatePixmap(dpy, parent, mw, mh, DefaultDepth(dpy, screen));
732 dc.gc = XCreateGC(dpy, parent, 0, NULL);
733 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
734 if(!dc.font.set)
735 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
736 if(maxname)
737 cmdw = MIN(textw(maxname), mw / 3);
738 if(prompt)
739 promptw = MIN(textw(prompt), mw / 5);
740 text[0] = '\0';
741 match(text);
742 XMapRaised(dpy, win);
743 }
744
745 int
746 textnw(const char *text, unsigned int len) {
747 XRectangle r;
748
749 if(dc.font.set) {
750 XmbTextExtents(dc.font.set, text, len, NULL, &r);
751 return r.width;
752 }
753 return XTextWidth(dc.font.xfont, text, len);
754 }
755
756 int
757 textw(const char *text) {
758 return textnw(text, strlen(text)) + dc.font.height;
759 }
760
761 int
762 main(int argc, char *argv[]) {
763 unsigned int i;
764 Bool topbar = True;
765
766 /* command line args */
767 for(i = 1; i < argc; i++)
768 if(!strcmp(argv[i], "-i")) {
769 fstrncmp = strncasecmp;
770 fstrstr = cistrstr;
771 }
772 else if(!strcmp(argv[i], "-b"))
773 topbar = False;
774 else if(!strcmp(argv[i], "-e")) {
775 if(++i < argc) parent = atoi(argv[i]);
776 }
777 else if(!strcmp(argv[i], "-l")) {
778 calcoffsets = calcoffsetsv;
779 if(++i < argc) lines = atoi(argv[i]);
780 }
781 else if(!strcmp(argv[i], "-fn")) {
782 if(++i < argc) font = argv[i];
783 }
784 else if(!strcmp(argv[i], "-nb")) {
785 if(++i < argc) normbgcolor = argv[i];
786 }
787 else if(!strcmp(argv[i], "-nf")) {
788 if(++i < argc) normfgcolor = argv[i];
789 }
790 else if(!strcmp(argv[i], "-p")) {
791 if(++i < argc) prompt = argv[i];
792 }
793 else if(!strcmp(argv[i], "-sb")) {
794 if(++i < argc) selbgcolor = argv[i];
795 }
796 else if(!strcmp(argv[i], "-sf")) {
797 if(++i < argc) selfgcolor = argv[i];
798 }
799 else if(!strcmp(argv[i], "-v"))
800 eprint("dmenu-"VERSION", © 2006-2010 dmenu engineers, see LICENSE for details\n");
801 else
802 eprint("usage: dmenu [-i] [-b] [-e <xid>] [-l <lines>] [-fn <font>] [-nb <color>]\n"
803 " [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
804 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
805 fprintf(stderr, "warning: no locale support\n");
806 if(!(dpy = XOpenDisplay(NULL)))
807 eprint("dmenu: cannot open display\n");
808 screen = DefaultScreen(dpy);
809 if(!parent)
810 parent = RootWindow(dpy, screen);
811
812 readstdin();
813 running = grabkeyboard();
814
815 setup(topbar);
816 drawmenu();
817 XSync(dpy, False);
818 run();
819 cleanup();
820 XCloseDisplay(dpy);
821 return ret;
822 }