dmenu.c

   1 /* See LICENSE file for copyright and license details. */
   2 #include <ctype.h>
   3 #include <locale.h>
   4 #include <stdbool.h>
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <string.h>
   8 #include <strings.h>
   9 #include <time.h>
  10 #include <X11/Xlib.h>
  11 #include <X11/Xatom.h>
  12 #include <X11/Xutil.h>
  13 #ifdef XINERAMA
  14 #include <X11/extensions/Xinerama.h>
  15 #endif
  16 #include <X11/Xft/Xft.h>
  17
  18 #include "drw.h"
  19 #include "util.h"
  20
  21 /* macros */
  22 #define INTERSECT(x,y,w,h,r)  (MAX(0, MIN((x)+(w),(r).x_org+(r).width)  - MAX((x),(r).x_org)) \
  23                              * MAX(0, MIN((y)+(h),(r).y_org+(r).height) - MAX((y),(r).y_org)))
  24 #define LENGTH(X)             (sizeof X / sizeof X[0])
  25 #define TEXTNW(X,N)           (drw_font_getexts_width(drw->fonts[0], (X), (N)))
  26 #define TEXTW(X)              (drw_text(drw, 0, 0, 0, 0, (X), 0) + drw->fonts[0]->h)
  27
  28 /* enums */
  29 enum { SchemeNorm, SchemeSel, SchemeOut, SchemeLast }; /* color schemes */
  30
  31 typedef struct Item Item;
  32 struct Item {
  33         char *text;
  34         Item *left, *right;
  35         bool out;
  36 };
  37
  38 static void appenditem(Item *, Item **, Item **);
  39 static void calcoffsets(void);
  40 static char *cistrstr(const char *, const char *);
  41 static void cleanup(void);
  42 static void drawmenu(void);
  43 static void grabkeyboard(void);
  44 static void insert(const char *, ssize_t);
  45 static void keypress(XKeyEvent *);
  46 static void match(void);
  47 static size_t nextrune(int);
  48 static void paste(void);
  49 static void readstdin(void);
  50 static void run(void);
  51 static void setup(void);
  52 static void usage(void);
  53
  54 static char text[BUFSIZ] = "";
  55 static int bh, mw, mh;
  56 static int sw, sh; /* X display screen geometry width, height */
  57 static int inputw, promptw;
  58 static size_t cursor;
  59 static Item *items = NULL;
  60 static Item *matches, *matchend;
  61 static Item *prev, *curr, *next, *sel;
  62 static int mon = -1, screen;
  63
  64 static Atom clip, utf8;
  65 static Display *dpy;
  66 static Window root, win;
  67 static XIC xic;
  68
  69 static ClrScheme scheme[SchemeLast];
  70 static Drw *drw;
  71
  72 #include "config.h"
  73
  74 static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
  75 static char *(*fstrstr)(const char *, const char *) = strstr;
  76
  77 static void
  78 appenditem(Item *item, Item **list, Item **last)
  79 {
  80         if (*last)
  81                 (*last)->right = item;
  82         else
  83                 *list = item;
  84
  85         item->left = *last;
  86         item->right = NULL;
  87         *last = item;
  88 }
  89
  90 static void
  91 calcoffsets(void)
  92 {
  93         int i, n;
  94
  95         if (lines > 0)
  96                 n = lines * bh;
  97         else
  98                 n = mw - (promptw + inputw + TEXTW("<") + TEXTW(">"));
  99         /* calculate which items will begin the next page and previous page */
 100         for (i = 0, next = curr; next; next = next->right)
 101                 if ((i += (lines > 0) ? bh : MIN(TEXTW(next->text), n)) > n)
 102                         break;
 103         for (i = 0, prev = curr; prev && prev->left; prev = prev->left)
 104                 if ((i += (lines > 0) ? bh : MIN(TEXTW(prev->left->text), n)) > n)
 105                         break;
 106 }
 107
 108 static void
 109 cleanup(void)
 110 {
 111         XUngrabKey(dpy, AnyKey, AnyModifier, root);
 112         drw_clr_free(scheme[SchemeNorm].bg);
 113         drw_clr_free(scheme[SchemeNorm].fg);
 114         drw_clr_free(scheme[SchemeSel].fg);
 115         drw_clr_free(scheme[SchemeSel].bg);
 116         drw_clr_free(scheme[SchemeOut].fg);
 117         drw_clr_free(scheme[SchemeOut].bg);
 118         drw_free(drw);
 119         XSync(dpy, False);
 120         XCloseDisplay(dpy);
 121 }
 122
 123 static char *
 124 cistrstr(const char *s, const char *sub)
 125 {
 126         size_t len;
 127
 128         for (len = strlen(sub); *s; s++)
 129                 if (!strncasecmp(s, sub, len))
 130                         return (char *)s;
 131         return NULL;
 132 }
 133
 134 static void
 135 drawmenu(void)
 136 {
 137         int curpos;
 138         Item *item;
 139         int x = 0, y = 0, h = bh, w;
 140
 141         drw_setscheme(drw, &scheme[SchemeNorm]);
 142         drw_rect(drw, 0, 0, mw, mh, 1, 1, 1);
 143
 144         if (prompt && *prompt) {
 145                 drw_setscheme(drw, &scheme[SchemeSel]);
 146                 drw_text(drw, x, 0, promptw, bh, prompt, 0);
 147                 x += promptw;
 148         }
 149         /* draw input field */
 150         w = (lines > 0 || !matches) ? mw - x : inputw;
 151         drw_setscheme(drw, &scheme[SchemeNorm]);
 152         drw_text(drw, x, 0, w, bh, text, 0);
 153
 154         if ((curpos = TEXTNW(text, cursor) + bh / 2 - 2) < w) {
 155                 drw_setscheme(drw, &scheme[SchemeNorm]);
 156                 drw_rect(drw, x + curpos + 2, 2, 1, bh - 4, 1, 1, 0);
 157         }
 158
 159         if (lines > 0) {
 160                 /* draw vertical list */
 161                 w = mw - x;
 162                 for (item = curr; item != next; item = item->right) {
 163                         y += h;
 164                         if (item == sel)
 165                                 drw_setscheme(drw, &scheme[SchemeSel]);
 166                         else if (item->out)
 167                                 drw_setscheme(drw, &scheme[SchemeOut]);
 168                         else
 169                                 drw_setscheme(drw, &scheme[SchemeNorm]);
 170
 171                         drw_text(drw, x, y, w, bh, item->text, 0);
 172                 }
 173         } else if (matches) {
 174                 /* draw horizontal list */
 175                 x += inputw;
 176                 w = TEXTW("<");
 177                 if (curr->left) {
 178                         drw_setscheme(drw, &scheme[SchemeNorm]);
 179                         drw_text(drw, x, 0, w, bh, "<", 0);
 180                 }
 181                 for (item = curr; item != next; item = item->right) {
 182                         x += w;
 183                         w = MIN(TEXTW(item->text), mw - x - TEXTW(">"));
 184
 185                         if (item == sel)
 186                                 drw_setscheme(drw, &scheme[SchemeSel]);
 187                         else if (item->out)
 188                                 drw_setscheme(drw, &scheme[SchemeOut]);
 189                         else
 190                                 drw_setscheme(drw, &scheme[SchemeNorm]);
 191                         drw_text(drw, x, 0, w, bh, item->text, 0);
 192                 }
 193                 w = TEXTW(">");
 194                 x = mw - w;
 195                 if (next) {
 196                         drw_setscheme(drw, &scheme[SchemeNorm]);
 197                         drw_text(drw, x, 0, w, bh, ">", 0);
 198                 }
 199         }
 200         drw_map(drw, win, 0, 0, mw, mh);
 201 }
 202
 203 static void
 204 grabkeyboard(void)
 205 {
 206         struct timespec ts = { .tv_sec = 1, .tv_nsec = 0  };
 207         int i;
 208
 209         /* try to grab keyboard, we may have to wait for another process to ungrab */
 210         for (i = 0; i < 1000; i++) {
 211                 if (XGrabKeyboard(dpy, DefaultRootWindow(dpy), True,
 212                                  GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess)
 213                         return;
 214                 nanosleep(&ts, NULL);
 215         }
 216         die("cannot grab keyboard\n");
 217 }
 218
 219 static void
 220 insert(const char *str, ssize_t n)
 221 {
 222         if (strlen(text) + n > sizeof text - 1)
 223                 return;
 224         /* move existing text out of the way, insert new text, and update cursor */
 225         memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0));
 226         if (n > 0)
 227                 memcpy(&text[cursor], str, n);
 228         cursor += n;
 229         match();
 230 }
 231
 232 static void
 233 keypress(XKeyEvent *ev)
 234 {
 235         char buf[32];
 236         int len;
 237         KeySym ksym = NoSymbol;
 238         Status status;
 239
 240         len = XmbLookupString(xic, ev, buf, sizeof buf, &ksym, &status);
 241         if (status == XBufferOverflow)
 242                 return;
 243         if (ev->state & ControlMask)
 244                 switch(ksym) {
 245                 case XK_a: ksym = XK_Home;      break;
 246                 case XK_b: ksym = XK_Left;      break;
 247                 case XK_c: ksym = XK_Escape;    break;
 248                 case XK_d: ksym = XK_Delete;    break;
 249                 case XK_e: ksym = XK_End;       break;
 250                 case XK_f: ksym = XK_Right;     break;
 251                 case XK_g: ksym = XK_Escape;    break;
 252                 case XK_h: ksym = XK_BackSpace; break;
 253                 case XK_i: ksym = XK_Tab;       break;
 254                 case XK_j: /* fallthrough */
 255                 case XK_J: /* fallthrough */
 256                 case XK_m: /* fallthrough */
 257                 case XK_M: ksym = XK_Return; ev->state &= ~ControlMask; break;
 258                 case XK_n: ksym = XK_Down;      break;
 259                 case XK_p: ksym = XK_Up;        break;
 260
 261                 case XK_k: /* delete right */
 262                         text[cursor] = '\0';
 263                         match();
 264                         break;
 265                 case XK_u: /* delete left */
 266                         insert(NULL, 0 - cursor);
 267                         break;
 268                 case XK_w: /* delete word */
 269                         while (cursor > 0 && text[nextrune(-1)] == ' ')
 270                                 insert(NULL, nextrune(-1) - cursor);
 271                         while (cursor > 0 && text[nextrune(-1)] != ' ')
 272                                 insert(NULL, nextrune(-1) - cursor);
 273                         break;
 274                 case XK_y: /* paste selection */
 275                         XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY,
 276                                           utf8, utf8, win, CurrentTime);
 277                         return;
 278                 case XK_Return:
 279                 case XK_KP_Enter:
 280                         break;
 281                 case XK_bracketleft:
 282                         cleanup();
 283                         exit(1);
 284                 default:
 285                         return;
 286                 }
 287         else if (ev->state & Mod1Mask)
 288                 switch(ksym) {
 289                 case XK_g: ksym = XK_Home;  break;
 290                 case XK_G: ksym = XK_End;   break;
 291                 case XK_h: ksym = XK_Up;    break;
 292                 case XK_j: ksym = XK_Next;  break;
 293                 case XK_k: ksym = XK_Prior; break;
 294                 case XK_l: ksym = XK_Down;  break;
 295                 default:
 296                         return;
 297                 }
 298         switch(ksym) {
 299         default:
 300                 if (!iscntrl(*buf))
 301                         insert(buf, len);
 302                 break;
 303         case XK_Delete:
 304                 if (text[cursor] == '\0')
 305                         return;
 306                 cursor = nextrune(+1);
 307                 /* fallthrough */
 308         case XK_BackSpace:
 309                 if (cursor == 0)
 310                         return;
 311                 insert(NULL, nextrune(-1) - cursor);
 312                 break;
 313         case XK_End:
 314                 if (text[cursor] != '\0') {
 315                         cursor = strlen(text);
 316                         break;
 317                 }
 318                 if (next) {
 319                         /* jump to end of list and position items in reverse */
 320                         curr = matchend;
 321                         calcoffsets();
 322                         curr = prev;
 323                         calcoffsets();
 324                         while (next && (curr = curr->right))
 325                                 calcoffsets();
 326                 }
 327                 sel = matchend;
 328                 break;
 329         case XK_Escape:
 330                 cleanup();
 331                 exit(1);
 332         case XK_Home:
 333                 if (sel == matches) {
 334                         cursor = 0;
 335                         break;
 336                 }
 337                 sel = curr = matches;
 338                 calcoffsets();
 339                 break;
 340         case XK_Left:
 341                 if (cursor > 0 && (!sel || !sel->left || lines > 0)) {
 342                         cursor = nextrune(-1);
 343                         break;
 344                 }
 345                 if (lines > 0)
 346                         return;
 347                 /* fallthrough */
 348         case XK_Up:
 349                 if (sel && sel->left && (sel = sel->left)->right == curr) {
 350                         curr = prev;
 351                         calcoffsets();
 352                 }
 353                 break;
 354         case XK_Next:
 355                 if (!next)
 356                         return;
 357                 sel = curr = next;
 358                 calcoffsets();
 359                 break;
 360         case XK_Prior:
 361                 if (!prev)
 362                         return;
 363                 sel = curr = prev;
 364                 calcoffsets();
 365                 break;
 366         case XK_Return:
 367         case XK_KP_Enter:
 368                 puts((sel && !(ev->state & ShiftMask)) ? sel->text : text);
 369                 if (!(ev->state & ControlMask)) {
 370                         cleanup();
 371                         exit(0);
 372                 }
 373                 if (sel)
 374                         sel->out = true;
 375                 break;
 376         case XK_Right:
 377                 if (text[cursor] != '\0') {
 378                         cursor = nextrune(+1);
 379                         break;
 380                 }
 381                 if (lines > 0)
 382                         return;
 383                 /* fallthrough */
 384         case XK_Down:
 385                 if (sel && sel->right && (sel = sel->right) == next) {
 386                         curr = next;
 387                         calcoffsets();
 388                 }
 389                 break;
 390         case XK_Tab:
 391                 if (!sel)
 392                         return;
 393                 strncpy(text, sel->text, sizeof text - 1);
 394                 text[sizeof text - 1] = '\0';
 395                 cursor = strlen(text);
 396                 match();
 397                 break;
 398         }
 399         drawmenu();
 400 }
 401
 402 static void
 403 match(void)
 404 {
 405         static char **tokv = NULL;
 406         static int tokn = 0;
 407
 408         char buf[sizeof text], *s;
 409         int i, tokc = 0;
 410         size_t len;
 411         Item *item, *lprefix, *lsubstr, *prefixend, *substrend;
 412
 413         strcpy(buf, text);
 414         /* separate input text into tokens to be matched individually */
 415         for (s = strtok(buf, " "); s; tokv[tokc - 1] = s, s = strtok(NULL, " "))
 416                 if (++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
 417                         die("cannot realloc %u bytes\n", tokn * sizeof *tokv);
 418         len = tokc ? strlen(tokv[0]) : 0;
 419
 420         matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
 421         for (item = items; item && item->text; item++) {
 422                 for (i = 0; i < tokc; i++)
 423                         if (!fstrstr(item->text, tokv[i]))
 424                                 break;
 425                 if (i != tokc) /* not all tokens match */
 426                         continue;
 427                 /* exact matches go first, then prefixes, then substrings */
 428                 if (!tokc || !fstrncmp(tokv[0], item->text, len + 1))
 429                         appenditem(item, &matches, &matchend);
 430                 else if (!fstrncmp(tokv[0], item->text, len))
 431                         appenditem(item, &lprefix, &prefixend);
 432                 else
 433                         appenditem(item, &lsubstr, &substrend);
 434         }
 435         if (lprefix) {
 436                 if (matches) {
 437                         matchend->right = lprefix;
 438                         lprefix->left = matchend;
 439                 } else
 440                         matches = lprefix;
 441                 matchend = prefixend;
 442         }
 443         if (lsubstr) {
 444                 if (matches) {
 445                         matchend->right = lsubstr;
 446                         lsubstr->left = matchend;
 447                 } else
 448                         matches = lsubstr;
 449                 matchend = substrend;
 450         }
 451         curr = sel = matches;
 452         calcoffsets();
 453 }
 454
 455 static size_t
 456 nextrune(int inc)
 457 {
 458         ssize_t n;
 459
 460         /* return location of next utf8 rune in the given direction (+1 or -1) */
 461         for (n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc)
 462                 ;
 463         return n;
 464 }
 465
 466 static void
 467 paste(void)
 468 {
 469         char *p, *q;
 470         int di;
 471         unsigned long dl;
 472         Atom da;
 473
 474         /* we have been given the current selection, now insert it into input */
 475         XGetWindowProperty(dpy, win, utf8, 0, (sizeof text / 4) + 1, False,
 476                            utf8, &da, &di, &dl, &dl, (unsigned char **)&p);
 477         insert(p, (q = strchr(p, '\n')) ? q - p : (ssize_t)strlen(p));
 478         XFree(p);
 479         drawmenu();
 480 }
 481
 482 static void
 483 readstdin(void)
 484 {
 485         char buf[sizeof text], *p, *maxstr = NULL;
 486         size_t i, max = 0, size = 0;
 487
 488         /* read each line from stdin and add it to the item list */
 489         for (i = 0; fgets(buf, sizeof buf, stdin); i++) {
 490                 if (i + 1 >= size / sizeof *items)
 491                         if (!(items = realloc(items, (size += BUFSIZ))))
 492                                 die("cannot realloc %u bytes:", size);
 493                 if ((p = strchr(buf, '\n')))
 494                         *p = '\0';
 495                 if (!(items[i].text = strdup(buf)))
 496                         die("cannot strdup %u bytes:", strlen(buf) + 1);
 497                 items[i].out = false;
 498                 if (strlen(items[i].text) > max)
 499                         max = strlen(maxstr = items[i].text);
 500         }
 501         if (items)
 502                 items[i].text = NULL;
 503         inputw = maxstr ? TEXTW(maxstr) : 0;
 504         lines = MIN(lines, i);
 505 }
 506
 507 static void
 508 run(void)
 509 {
 510         XEvent ev;
 511
 512         while (!XNextEvent(dpy, &ev)) {
 513                 if (XFilterEvent(&ev, win))
 514                         continue;
 515                 switch(ev.type) {
 516                 case Expose:
 517                         if (ev.xexpose.count == 0)
 518                                 drw_map(drw, win, 0, 0, mw, mh);
 519                         break;
 520                 case KeyPress:
 521                         keypress(&ev.xkey);
 522                         break;
 523                 case SelectionNotify:
 524                         if (ev.xselection.property == utf8)
 525                                 paste();
 526                         break;
 527                 case VisibilityNotify:
 528                         if (ev.xvisibility.state != VisibilityUnobscured)
 529                                 XRaiseWindow(dpy, win);
 530                         break;
 531                 }
 532         }
 533 }
 534
 535 static void
 536 setup(void)
 537 {
 538         int x, y;
 539         XSetWindowAttributes swa;
 540         XIM xim;
 541 #ifdef XINERAMA
 542         XineramaScreenInfo *info;
 543         Window w, pw, dw, *dws;
 544         XWindowAttributes wa;
 545         int a, j, di, n, i = 0, area = 0;
 546         unsigned int du;
 547 #endif
 548
 549         /* init appearance */
 550         scheme[SchemeNorm].bg = drw_clr_create(drw, normbgcolor);
 551         scheme[SchemeNorm].fg = drw_clr_create(drw, normfgcolor);
 552         scheme[SchemeSel].bg = drw_clr_create(drw, selbgcolor);
 553         scheme[SchemeSel].fg = drw_clr_create(drw, selfgcolor);
 554         scheme[SchemeOut].bg = drw_clr_create(drw, outbgcolor);
 555         scheme[SchemeOut].fg = drw_clr_create(drw, outfgcolor);
 556
 557         clip = XInternAtom(dpy, "CLIPBOARD",   False);
 558         utf8 = XInternAtom(dpy, "UTF8_STRING", False);
 559
 560         /* calculate menu geometry */
 561         bh = drw->fonts[0]->h + 2;
 562         lines = MAX(lines, 0);
 563         mh = (lines + 1) * bh;
 564 #ifdef XINERAMA
 565         if ((info = XineramaQueryScreens(dpy, &n))) {
 566                 XGetInputFocus(dpy, &w, &di);
 567                 if (mon != -1 && mon < n)
 568                         i = mon;
 569                 if (!i && w != root && w != PointerRoot && w != None) {
 570                         /* find top-level window containing current input focus */
 571                         do {
 572                                 if (XQueryTree(dpy, (pw = w), &dw, &w, &dws, &du) && dws)
 573                                         XFree(dws);
 574                         } while (w != root && w != pw);
 575                         /* find xinerama screen with which the window intersects most */
 576                         if (XGetWindowAttributes(dpy, pw, &wa))
 577                                 for (j = 0; j < n; j++)
 578                                         if ((a = INTERSECT(wa.x, wa.y, wa.width, wa.height, info[j])) > area) {
 579                                                 area = a;
 580                                                 i = j;
 581                                         }
 582                 }
 583                 /* no focused window is on screen, so use pointer location instead */
 584                 if (mon == -1 && !area && XQueryPointer(dpy, root, &dw, &dw, &x, &y, &di, &di, &du))
 585                         for (i = 0; i < n; i++)
 586                                 if (INTERSECT(x, y, 1, 1, info[i]))
 587                                         break;
 588
 589                 x = info[i].x_org;
 590                 y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
 591                 mw = info[i].width;
 592                 XFree(info);
 593         } else
 594 #endif
 595         {
 596                 x = 0;
 597                 y = topbar ? 0 : sh - mh;
 598                 mw = sw;
 599         }
 600         promptw = (prompt && *prompt) ? TEXTW(prompt) : 0;
 601         inputw = MIN(inputw, mw/3);
 602         match();
 603
 604         /* create menu window */
 605         swa.override_redirect = True;
 606         swa.background_pixel = scheme[SchemeNorm].bg->pix;
 607         swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
 608         win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
 609                             DefaultDepth(dpy, screen), CopyFromParent,
 610                             DefaultVisual(dpy, screen),
 611                             CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
 612
 613         /* open input methods */
 614         xim = XOpenIM(dpy, NULL, NULL, NULL);
 615         xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
 616                         XNClientWindow, win, XNFocusWindow, win, NULL);
 617
 618         XMapRaised(dpy, win);
 619         drw_resize(drw, mw, mh);
 620         drawmenu();
 621 }
 622
 623 static void
 624 usage(void)
 625 {
 626         fputs("usage: dmenu [-b] [-f] [-i] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
 627               "             [-nb color] [-nf color] [-sb color] [-sf color] [-v]\n", stderr);
 628         exit(1);
 629 }
 630
 631 int
 632 main(int argc, char *argv[])
 633 {
 634         bool fast = false;
 635         int i;
 636
 637         for (i = 1; i < argc; i++)
 638                 /* these options take no arguments */
 639                 if (!strcmp(argv[i], "-v")) {      /* prints version information */
 640                         puts("dmenu-"VERSION);
 641                         exit(0);
 642                 } else if (!strcmp(argv[i], "-b"))   /* appears at the bottom of the screen */
 643                         topbar = false;
 644                 else if (!strcmp(argv[i], "-f"))   /* grabs keyboard before reading stdin */
 645                         fast = true;
 646                 else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
 647                         fstrncmp = strncasecmp;
 648                         fstrstr = cistrstr;
 649                 } else if (i + 1 == argc)
 650                         usage();
 651                 /* these options take one argument */
 652                 else if (!strcmp(argv[i], "-l"))   /* number of lines in vertical list */
 653                         lines = atoi(argv[++i]);
 654                 else if (!strcmp(argv[i], "-m"))
 655                         mon = atoi(argv[++i]);
 656                 else if (!strcmp(argv[i], "-p"))   /* adds prompt to left of input field */
 657                         prompt = argv[++i];
 658                 else if (!strcmp(argv[i], "-fn"))  /* font or font set */
 659                         fonts[0] = argv[++i];
 660                 else if (!strcmp(argv[i], "-nb"))  /* normal background color */
 661                         normbgcolor = argv[++i];
 662                 else if (!strcmp(argv[i], "-nf"))  /* normal foreground color */
 663                         normfgcolor = argv[++i];
 664                 else if (!strcmp(argv[i], "-sb"))  /* selected background color */
 665                         selbgcolor = argv[++i];
 666                 else if (!strcmp(argv[i], "-sf"))  /* selected foreground color */
 667                         selfgcolor = argv[++i];
 668                 else
 669                         usage();
 670
 671         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
 672                 fputs("warning: no locale support\n", stderr);
 673         if (!(dpy = XOpenDisplay(NULL)))
 674                 die("cannot open display\n");
 675         screen = DefaultScreen(dpy);
 676         root = RootWindow(dpy, screen);
 677         sw = DisplayWidth(dpy, screen);
 678         sh = DisplayHeight(dpy, screen);
 679         drw = drw_create(dpy, screen, root, sw, sh);
 680         drw_load_fonts(drw, fonts, LENGTH(fonts));
 681         if (!drw->fontcount)
 682                 die("no fonts could be loaded.\n");
 683         drw_setscheme(drw, &scheme[SchemeNorm]);
 684
 685         if (fast) {
 686                 grabkeyboard();
 687                 readstdin();
 688         } else {
 689                 readstdin();
 690                 grabkeyboard();
 691         }
 692         setup();
 693         run();
 694
 695         return 1; /* unreachable */
 696 }