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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 root, win;
95 static int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
96 static char *(*fstrstr)(const char *, const char *) = strstr;
97 static Bool vlist = False;
98 static unsigned int lines = 5;
99 static void (*calcoffsets)(void) = calcoffsetsh;
100
101 void
102 appenditem(Item *i, Item **list, Item **last) {
103 if(!(*last))
104 *list = i;
105 else
106 (*last)->right = i;
107 i->left = *last;
108 i->right = NULL;
109 *last = i;
110 }
111
112 void
113 calcoffsetsh(void) {
114 int tw;
115 unsigned int w;
116
117 if(!curr)
118 return;
119 w = promptw + cmdw + 2 * spaceitem;
120 for(next = curr; next; next=next->right) {
121 tw = textw(next->text);
122 if(tw > mw / 3)
123 tw = mw / 3;
124 w += tw;
125 if(w > mw)
126 break;
127 }
128 w = promptw + cmdw + 2 * spaceitem;
129 for(prev = curr; prev && prev->left; prev=prev->left) {
130 tw = textw(prev->left->text);
131 if(tw > mw / 3)
132 tw = mw / 3;
133 w += tw;
134 if(w > mw)
135 break;
136 }
137 }
138
139 void
140 calcoffsetsv(void) {
141 static unsigned int w;
142
143 if(!curr)
144 return;
145 w = (dc.font.height + 2) * (lines + 1);
146 for(next = curr; next; next=next->right) {
147 w -= dc.font.height + 2;
148 if(w <= 0)
149 break;
150 }
151 w = (dc.font.height + 2) * (lines + 1);
152 for(prev = curr; prev && prev->left; prev=prev->left) {
153 w -= dc.font.height + 2;
154 if(w <= 0)
155 break;
156 }
157 }
158
159 char *
160 cistrstr(const char *s, const char *sub) {
161 int c, csub;
162 unsigned int len;
163
164 if(!sub)
165 return (char *)s;
166 if((c = *sub++) != 0) {
167 c = tolower(c);
168 len = strlen(sub);
169 do {
170 do {
171 if((csub = *s++) == 0)
172 return NULL;
173 }
174 while(tolower(csub) != c);
175 }
176 while(strncasecmp(s, sub, len) != 0);
177 s--;
178 }
179 return (char *)s;
180 }
181
182 void
183 cleanup(void) {
184 Item *itm;
185
186 while(allitems) {
187 itm = allitems->next;
188 free(allitems->text);
189 free(allitems);
190 allitems = itm;
191 }
192 if(dc.font.set)
193 XFreeFontSet(dpy, dc.font.set);
194 else
195 XFreeFont(dpy, dc.font.xfont);
196 XFreePixmap(dpy, dc.drawable);
197 XFreeGC(dpy, dc.gc);
198 XDestroyWindow(dpy, win);
199 XUngrabKeyboard(dpy, CurrentTime);
200 }
201
202 void
203 drawcursor(void) {
204 XRectangle r = { dc.x, dc.y + 2, 1, dc.font.height - 2 };
205
206 r.x += textnw(text, cursor) + dc.font.height / 2;
207
208 XSetForeground(dpy, dc.gc, dc.norm[ColFG]);
209 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
210 }
211
212 void
213 drawmenu(void) {
214 dc.x = 0;
215 dc.y = 0;
216 dc.w = mw;
217 dc.h = mh;
218 drawtext(NULL, dc.norm);
219 /* print prompt? */
220 if(promptw) {
221 dc.w = promptw;
222 drawtext(prompt, dc.sel);
223 }
224 dc.x += promptw;
225 dc.w = mw - promptw;
226 /* print command */
227 if(cmdw && item)
228 dc.w = cmdw;
229 drawtext(text[0] ? text : NULL, dc.norm);
230 drawcursor();
231 dc.x += cmdw;
232 if(curr) {
233 if(vlist)
234 drawmenuv();
235 else
236 drawmenuh();
237 }
238 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
239 XFlush(dpy);
240 }
241
242 void
243 drawmenuh(void) {
244 Item *i;
245
246 dc.w = spaceitem;
247 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
248 dc.x += dc.w;
249 /* determine maximum items */
250 for(i = curr; i != next; i=i->right) {
251 dc.w = MIN(textw(i->text), mw / 3);
252 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
253 dc.x += dc.w;
254 }
255 dc.x = mw - spaceitem;
256 dc.w = spaceitem;
257 drawtext(next ? ">" : NULL, dc.norm);
258 }
259
260 void
261 drawmenuv(void) {
262 Item *i;
263
264 dc.x = 0;
265 dc.w = mw;
266 dc.y += dc.font.height + 2;
267 /* determine maximum items */
268 for(i = curr; i != next; i=i->right) {
269 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
270 dc.y += dc.font.height + 2;
271 }
272 drawtext(NULL, dc.norm);
273 }
274
275 void
276 drawtext(const char *text, unsigned long col[ColLast]) {
277 char buf[256];
278 int i, x, y, h, len, olen;
279 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
280
281 XSetForeground(dpy, dc.gc, col[ColBG]);
282 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
283 if(!text)
284 return;
285 olen = strlen(text);
286 h = dc.font.height;
287 y = dc.y + ((h+2) / 2) - (h / 2) + dc.font.ascent;
288 x = dc.x + (h / 2);
289 /* shorten text if necessary */
290 for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
291 if(!len)
292 return;
293 memcpy(buf, text, len);
294 if(len < olen)
295 for(i = len; i && i > len - 3; buf[--i] = '.');
296 XSetForeground(dpy, dc.gc, col[ColFG]);
297 if(dc.font.set)
298 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
299 else
300 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
301 }
302
303 void
304 eprint(const char *errstr, ...) {
305 va_list ap;
306
307 va_start(ap, errstr);
308 vfprintf(stderr, errstr, ap);
309 va_end(ap);
310 exit(EXIT_FAILURE);
311 }
312
313 unsigned long
314 getcolor(const char *colstr) {
315 Colormap cmap = DefaultColormap(dpy, screen);
316 XColor color;
317
318 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
319 eprint("error, cannot allocate color '%s'\n", colstr);
320 return color.pixel;
321 }
322
323 Bool
324 grabkeyboard(void) {
325 unsigned int len;
326
327 for(len = 1000; len; len--) {
328 if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
329 == GrabSuccess)
330 break;
331 usleep(1000);
332 }
333 return len > 0;
334 }
335
336 void
337 initfont(const char *fontstr) {
338 char *def, **missing;
339 int i, n;
340
341 if(!fontstr || fontstr[0] == '\0')
342 eprint("error, cannot load font: '%s'\n", fontstr);
343 missing = NULL;
344 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
345 if(missing)
346 XFreeStringList(missing);
347 if(dc.font.set) {
348 XFontSetExtents *font_extents;
349 XFontStruct **xfonts;
350 char **font_names;
351 dc.font.ascent = dc.font.descent = 0;
352 font_extents = XExtentsOfFontSet(dc.font.set);
353 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
354 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
355 if(dc.font.ascent < (*xfonts)->ascent)
356 dc.font.ascent = (*xfonts)->ascent;
357 if(dc.font.descent < (*xfonts)->descent)
358 dc.font.descent = (*xfonts)->descent;
359 xfonts++;
360 }
361 }
362 else {
363 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
364 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
365 eprint("error, cannot load font: '%s'\n", fontstr);
366 dc.font.ascent = dc.font.xfont->ascent;
367 dc.font.descent = dc.font.xfont->descent;
368 }
369 dc.font.height = dc.font.ascent + dc.font.descent;
370 }
371
372 void
373 kpress(XKeyEvent * e) {
374 char buf[sizeof text];
375 int i, num;
376 unsigned int len;
377 KeySym ksym;
378
379 len = strlen(text);
380 buf[0] = 0;
381 num = XLookupString(e, buf, sizeof buf, &ksym, NULL);
382 if(IsKeypadKey(ksym)) {
383 if(ksym == XK_KP_Enter)
384 ksym = XK_Return;
385 else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
386 ksym = (ksym - XK_KP_0) + XK_0;
387 }
388 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
389 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
390 || IsPrivateKeypadKey(ksym))
391 return;
392 /* first check if a control mask is omitted */
393 if(e->state & ControlMask) {
394 switch (ksym) {
395 default: /* ignore other control sequences */
396 return;
397 case XK_a:
398 case XK_A:
399 cursor = 0;
400 break;
401 case XK_e:
402 case XK_E:
403 cursor = strlen(text);
404 break;
405 case XK_c:
406 case XK_C:
407 ksym = XK_Escape;
408 break;
409 case XK_h:
410 case XK_H:
411 ksym = XK_BackSpace;
412 break;
413 case XK_i:
414 case XK_I:
415 ksym = XK_Tab;
416 break;
417 case XK_j:
418 case XK_J:
419 ksym = XK_Return;
420 break;
421 case XK_u:
422 case XK_U:
423 text[0] = 0;
424 match(text);
425 break;
426 case XK_w:
427 case XK_W:
428 if(cursor > 0) {
429 i = cursor;
430 while(i-- > 0 && text[i] == ' ');
431 while(i-- > 0 && text[i] != ' ');
432 memmove(text + i + 1, text + cursor, sizeof text - cursor);
433 cursor = i + 1;
434 match(text);
435 }
436 break;
437 }
438 }
439 if(CLEANMASK(e->state) & Mod1Mask) {
440 switch(ksym) {
441 default: return;
442 case XK_h:
443 ksym = XK_Left;
444 break;
445 case XK_l:
446 ksym = XK_Right;
447 break;
448 case XK_j:
449 ksym = XK_Next;
450 break;
451 case XK_k:
452 ksym = XK_Prior;
453 break;
454 case XK_g:
455 ksym = XK_Home;
456 break;
457 case XK_G:
458 ksym = XK_End;
459 break;
460 case XK_p:
461 {
462 FILE *fp;
463 char *c;
464 if(!(fp = (FILE*)popen("sselp", "r")))
465 eprint("dmenu: Could not popen sselp\n");
466 c = fgets(buf, sizeof buf, fp);
467 pclose(fp);
468 if(c == NULL)
469 return;
470 }
471 num = strlen(buf);
472 if(num && buf[num-1] == '\n')
473 buf[--num] = '\0';
474 break;
475 }
476 }
477 switch(ksym) {
478 default:
479 num = MIN(num, sizeof text - cursor);
480 if(num && !iscntrl((int) buf[0])) {
481 memmove(text + cursor + num, text + cursor, sizeof text - cursor - num);
482 memcpy(text + cursor, buf, num);
483 cursor+=num;
484 match(text);
485 }
486 break;
487 case XK_BackSpace:
488 if(cursor > 0) {
489 memmove(text + cursor - 1, text + cursor, sizeof text - cursor + 1);
490 cursor--;
491 match(text);
492 }
493 break;
494 case XK_Delete:
495 memmove(text + cursor, text + cursor + 1, sizeof text - cursor);
496 match(text);
497 break;
498 case XK_End:
499 if(cursor < len) {
500 cursor = len;
501 break;
502 }
503 while(next) {
504 sel = curr = next;
505 calcoffsets();
506 }
507 while(sel && sel->right)
508 sel = sel->right;
509 break;
510 case XK_Escape:
511 ret = 1;
512 running = False;
513 break;
514 case XK_Home:
515 if(sel == item) {
516 cursor = 0;
517 break;
518 }
519 sel = curr = item;
520 calcoffsets();
521 break;
522 case XK_Left:
523 case XK_Up:
524 if(sel && sel->left){
525 sel=sel->left;
526 if(sel->right == curr) {
527 curr = prev;
528 calcoffsets();
529 }
530 }
531 else if(cursor > 0)
532 cursor--;
533 else
534 return;
535 break;
536 case XK_Next:
537 if(!next)
538 return;
539 sel = curr = next;
540 calcoffsets();
541 break;
542 case XK_Prior:
543 if(!prev)
544 return;
545 sel = curr = prev;
546 calcoffsets();
547 break;
548 case XK_Return:
549 if((e->state & ShiftMask) || !sel)
550 fprintf(stdout, "%s", text);
551 else
552 fprintf(stdout, "%s", sel->text);
553 fflush(stdout);
554 running = False;
555 break;
556 case XK_Right:
557 case XK_Down:
558 if(cursor < len)
559 cursor++;
560 else if(sel && sel->right) {
561 sel=sel->right;
562 if(sel == next) {
563 curr = next;
564 calcoffsets();
565 }
566 }
567 else
568 return;
569 break;
570 case XK_Tab:
571 if(!sel)
572 return;
573 strncpy(text, sel->text, sizeof text);
574 cursor = strlen(text);
575 match(text);
576 break;
577 }
578 drawmenu();
579 }
580
581 void
582 match(char *pattern) {
583 unsigned int plen;
584 Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
585
586 if(!pattern)
587 return;
588 plen = strlen(pattern);
589 item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
590 for(i = allitems; i; i = i->next)
591 if(!fstrncmp(pattern, i->text, plen + 1))
592 appenditem(i, &lexact, &exactend);
593 else if(!fstrncmp(pattern, i->text, plen))
594 appenditem(i, &lprefix, &prefixend);
595 else if(fstrstr(i->text, pattern))
596 appenditem(i, &lsubstr, &substrend);
597 if(lexact) {
598 item = lexact;
599 itemend = exactend;
600 }
601 if(lprefix) {
602 if(itemend) {
603 itemend->right = lprefix;
604 lprefix->left = itemend;
605 }
606 else
607 item = lprefix;
608 itemend = prefixend;
609 }
610 if(lsubstr) {
611 if(itemend) {
612 itemend->right = lsubstr;
613 lsubstr->left = itemend;
614 }
615 else
616 item = lsubstr;
617 }
618 curr = prev = next = sel = item;
619 calcoffsets();
620 }
621
622 void
623 readstdin(void) {
624 char *p, buf[1024];
625 unsigned int len = 0, blen = 0, max = 0;
626 Item *i, *new;
627
628 i = 0, p = NULL;
629 while(fgets(buf, sizeof buf, stdin)) {
630 len += (blen = strlen(buf));
631 if(!(p = realloc(p, len))) {
632 eprint("fatal: could not realloc() %u bytes\n", len);
633 return;
634 }
635 memcpy (p + len - blen, buf, blen);
636 if (p[len - 1] == '\n')
637 p[len - 1] = 0;
638 else if (!feof(stdin))
639 continue;
640 if(max < len) {
641 maxname = p;
642 max = len;
643 }
644 len = 0;
645 if(!(new = (Item *)malloc(sizeof(Item))))
646 eprint("fatal: could not malloc() %u bytes\n", sizeof(Item));
647 new->next = new->left = new->right = NULL;
648 new->text = p;
649 p = NULL;
650 if(!i)
651 allitems = new;
652 else
653 i->next = new;
654 i = new;
655 }
656 }
657
658 void
659 run(void) {
660 XEvent ev;
661
662 /* main event loop */
663 while(running && !XNextEvent(dpy, &ev))
664 switch (ev.type) {
665 default: /* ignore all crap */
666 break;
667 case KeyPress:
668 kpress(&ev.xkey);
669 break;
670 case Expose:
671 if(ev.xexpose.count == 0)
672 drawmenu();
673 break;
674 }
675 }
676
677 void
678 setup(Bool topbar) {
679 int i, j, x, y;
680 #if XINERAMA
681 int n;
682 XineramaScreenInfo *info = NULL;
683 #endif
684 XModifierKeymap *modmap;
685 XSetWindowAttributes wa;
686
687 /* init modifier map */
688 modmap = XGetModifierMapping(dpy);
689 for(i = 0; i < 8; i++)
690 for(j = 0; j < modmap->max_keypermod; j++) {
691 if(modmap->modifiermap[i * modmap->max_keypermod + j]
692 == XKeysymToKeycode(dpy, XK_Num_Lock))
693 numlockmask = (1 << i);
694 }
695 XFreeModifiermap(modmap);
696
697 /* style */
698 dc.norm[ColBG] = getcolor(normbgcolor);
699 dc.norm[ColFG] = getcolor(normfgcolor);
700 dc.sel[ColBG] = getcolor(selbgcolor);
701 dc.sel[ColFG] = getcolor(selfgcolor);
702 initfont(font);
703
704 /* menu window */
705 wa.override_redirect = True;
706 wa.background_pixmap = ParentRelative;
707 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
708
709 /* menu window geometry */
710 mh = dc.font.height + 2;
711 mh = vlist ? mh * (lines+1) : mh;
712 #if XINERAMA
713 if(XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
714 i = 0;
715 if(n > 1) {
716 int di;
717 unsigned int dui;
718 Window dummy;
719 if(XQueryPointer(dpy, root, &dummy, &dummy, &x, &y, &di, &di, &dui))
720 for(i = 0; i < n; i++)
721 if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
722 break;
723 }
724 x = info[i].x_org;
725 y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
726 mw = info[i].width;
727 XFree(info);
728 }
729 else
730 #endif
731 {
732 x = 0;
733 y = topbar ? 0 : DisplayHeight(dpy, screen) - mh;
734 mw = DisplayWidth(dpy, screen);
735 }
736
737 win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
738 DefaultDepth(dpy, screen), CopyFromParent,
739 DefaultVisual(dpy, screen),
740 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
741
742 /* pixmap */
743 dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
744 dc.gc = XCreateGC(dpy, root, 0, NULL);
745 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
746 if(!dc.font.set)
747 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
748 if(maxname)
749 cmdw = MIN(textw(maxname), mw / 3);
750 if(prompt)
751 promptw = MIN(textw(prompt), mw / 5);
752 text[0] = 0;
753 match(text);
754 XMapRaised(dpy, win);
755 }
756
757 int
758 textnw(const char *text, unsigned int len) {
759 XRectangle r;
760
761 if(dc.font.set) {
762 XmbTextExtents(dc.font.set, text, len, NULL, &r);
763 return r.width;
764 }
765 return XTextWidth(dc.font.xfont, text, len);
766 }
767
768 int
769 textw(const char *text) {
770 return textnw(text, strlen(text)) + dc.font.height;
771 }
772
773 int
774 main(int argc, char *argv[]) {
775 unsigned int i;
776 Bool topbar = True;
777
778 /* command line args */
779 for(i = 1; i < argc; i++)
780 if(!strcmp(argv[i], "-i")) {
781 fstrncmp = strncasecmp;
782 fstrstr = cistrstr;
783 }
784 else if(!strcmp(argv[i], "-b"))
785 topbar = False;
786 else if(!strcmp(argv[i], "-e")) {
787 if(++i < argc) root = atoi(argv[i]);
788 }
789 else if(!strcmp(argv[i], "-l")) {
790 vlist = True;
791 calcoffsets = calcoffsetsv;
792 if(++i < argc) lines = atoi(argv[i]);
793 }
794 else if(!strcmp(argv[i], "-fn")) {
795 if(++i < argc) font = argv[i];
796 }
797 else if(!strcmp(argv[i], "-nb")) {
798 if(++i < argc) normbgcolor = argv[i];
799 }
800 else if(!strcmp(argv[i], "-nf")) {
801 if(++i < argc) normfgcolor = argv[i];
802 }
803 else if(!strcmp(argv[i], "-p")) {
804 if(++i < argc) prompt = argv[i];
805 }
806 else if(!strcmp(argv[i], "-sb")) {
807 if(++i < argc) selbgcolor = argv[i];
808 }
809 else if(!strcmp(argv[i], "-sf")) {
810 if(++i < argc) selfgcolor = argv[i];
811 }
812 else if(!strcmp(argv[i], "-v"))
813 eprint("dmenu-"VERSION", © 2006-2010 dmenu engineers, see LICENSE for details\n");
814 else
815 eprint("usage: dmenu [-i] [-b] [-l <lines>] [-fn <font>] [-nb <color>] [-nf <color>]\n"
816 " [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
817 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
818 fprintf(stderr, "warning: no locale support\n");
819 if(!(dpy = XOpenDisplay(NULL)))
820 eprint("dmenu: cannot open display\n");
821 screen = DefaultScreen(dpy);
822 if(!root)
823 root = RootWindow(dpy, screen);
824
825 if(isatty(STDIN_FILENO)) {
826 readstdin();
827 running = grabkeyboard();
828 }
829 else { /* prevent keypress loss */
830 running = grabkeyboard();
831 readstdin();
832 }
833
834 setup(topbar);
835 drawmenu();
836 XSync(dpy, False);
837 run();
838 cleanup();
839 XCloseDisplay(dpy);
840 return ret;
841 }