dmenu.c

   1 /* See LICENSE file for copyright and license details. */
   2 #include <ctype.h>
   3 #include <limits.h>
   4 #include <locale.h>
   5 #include <stdarg.h>
   6 #include <stdlib.h>
   7 #include <stdio.h>
   8 #include <string.h>
   9 #include <unistd.h>
  10 #include <X11/Xlib.h>
  11 #include <X11/Xutil.h>
  12 #include <X11/keysym.h>
  13
  14 /* macros */
  15 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
  16
  17 /* enums */
  18 enum { ColFG, ColBG, ColLast };
  19
  20 /* typedefs */
  21 typedef struct {
  22         int x, y, w, h;
  23         unsigned long norm[ColLast];
  24         unsigned long sel[ColLast];
  25         Drawable drawable;
  26         GC gc;
  27         struct {
  28                 XFontStruct *xfont;
  29                 XFontSet set;
  30                 int ascent;
  31                 int descent;
  32                 int height;
  33         } font;
  34 } DC; /* draw context */
  35
  36 typedef struct Item Item;
  37 struct Item {
  38         char *text;
  39         Item *next;             /* traverses all items */
  40         Item *left, *right;     /* traverses items matching current search pattern */
  41 };
  42
  43 /* forward declarations */
  44 void appenditem(Item *i, Item **list, Item **last);
  45 void calcoffsets(void);
  46 char *cistrstr(const char *s, const char *sub);
  47 void cleanup(void);
  48 void drawmenu(void);
  49 void drawtext(const char *text, unsigned long col[ColLast]);
  50 void *emalloc(unsigned int size);
  51 void eprint(const char *errstr, ...);
  52 char *estrdup(const char *str);
  53 unsigned long getcolor(const char *colstr);
  54 Bool grabkeyboard(void);
  55 void initfont(const char *fontstr);
  56 void kpress(XKeyEvent * e);
  57 void match(char *pattern);
  58 void readstdin(void);
  59 void run(void);
  60 void setup(int x, int y, int w);
  61 unsigned int textnw(const char *text, unsigned int len);
  62 unsigned int textw(const char *text);
  63
  64 #include "config.h"
  65
  66 /* variables */
  67 char *font = FONT;
  68 char *maxname = NULL;
  69 char *normbg = NORMBGCOLOR;
  70 char *normfg = NORMFGCOLOR;
  71 char *prompt = NULL;
  72 char *selbg = SELBGCOLOR;
  73 char *selfg = SELFGCOLOR;
  74 char text[4096];
  75 int screen;
  76 int ret = 0;
  77 unsigned int cmdw = 0;
  78 unsigned int mw, mh;
  79 unsigned int promptw = 0;
  80 unsigned int numlockmask = 0;
  81 Bool running = True;
  82 Display *dpy;
  83 DC dc = {0};
  84 Item *allitems = NULL;  /* first of all items */
  85 Item *item = NULL;      /* first of pattern matching items */
  86 Item *sel = NULL;
  87 Item *next = NULL;
  88 Item *prev = NULL;
  89 Item *curr = NULL;
  90 Window root, win;
  91 int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
  92 char *(*fstrstr)(const char *, const char *) = strstr;
  93
  94 void
  95 appenditem(Item *i, Item **list, Item **last) {
  96         if(!(*last))
  97                 *list = i;
  98         else
  99                 (*last)->right = i;
 100         i->left = *last;
 101         i->right = NULL;
 102         *last = i;
 103 }
 104
 105 void
 106 calcoffsets(void) {
 107         unsigned int tw, w;
 108
 109         if(!curr)
 110                 return;
 111         w = promptw + cmdw + 2 * SPACE;
 112         for(next = curr; next; next=next->right) {
 113                 tw = textw(next->text);
 114                 if(tw > mw / 3)
 115                         tw = mw / 3;
 116                 w += tw;
 117                 if(w > mw)
 118                         break;
 119         }
 120         w = promptw + cmdw + 2 * SPACE;
 121         for(prev = curr; prev && prev->left; prev=prev->left) {
 122                 tw = textw(prev->left->text);
 123                 if(tw > mw / 3)
 124                         tw = mw / 3;
 125                 w += tw;
 126                 if(w > mw)
 127                         break;
 128         }
 129 }
 130
 131 char *
 132 cistrstr(const char *s, const char *sub) {
 133         int c, csub;
 134         unsigned int len;
 135
 136         if(!sub)
 137                 return (char *)s;
 138         if((c = *sub++) != 0) {
 139                 c = tolower(c);
 140                 len = strlen(sub);
 141                 do {
 142                         do {
 143                                 if((csub = *s++) == 0)
 144                                         return (NULL);
 145                         }
 146                         while(tolower(csub) != c);
 147                 }
 148                 while(strncasecmp(s, sub, len) != 0);
 149                 s--;
 150         }
 151         return (char *)s;
 152 }
 153
 154 void
 155 cleanup(void) {
 156         Item *itm;
 157
 158         while(allitems) {
 159                 itm = allitems->next;
 160                 free(allitems->text);
 161                 free(allitems);
 162                 allitems = itm;
 163         }
 164         if(dc.font.set)
 165                 XFreeFontSet(dpy, dc.font.set);
 166         else
 167                 XFreeFont(dpy, dc.font.xfont);
 168         XFreePixmap(dpy, dc.drawable);
 169         XFreeGC(dpy, dc.gc);
 170         XDestroyWindow(dpy, win);
 171         XUngrabKeyboard(dpy, CurrentTime);
 172 }
 173
 174 void
 175 drawmenu(void) {
 176         Item *i;
 177
 178         dc.x = 0;
 179         dc.y = 0;
 180         dc.w = mw;
 181         dc.h = mh;
 182         drawtext(NULL, dc.norm);
 183         /* print prompt? */
 184         if(promptw) {
 185                 dc.w = promptw;
 186                 drawtext(prompt, dc.sel);
 187         }
 188         dc.x += promptw;
 189         dc.w = mw - promptw;
 190         /* print command */
 191         if(cmdw && item)
 192                 dc.w = cmdw;
 193         drawtext(text[0] ? text : NULL, dc.norm);
 194         dc.x += cmdw;
 195         if(curr) {
 196                 dc.w = SPACE;
 197                 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
 198                 dc.x += dc.w;
 199                 /* determine maximum items */
 200                 for(i = curr; i != next; i=i->right) {
 201                         dc.w = textw(i->text);
 202                         if(dc.w > mw / 3)
 203                                 dc.w = mw / 3;
 204                         drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
 205                         dc.x += dc.w;
 206                 }
 207                 dc.x = mw - SPACE;
 208                 dc.w = SPACE;
 209                 drawtext(next ? ">" : NULL, dc.norm);
 210         }
 211         XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
 212         XFlush(dpy);
 213 }
 214
 215 void
 216 drawtext(const char *text, unsigned long col[ColLast]) {
 217         int x, y, w, h;
 218         static char buf[256];
 219         unsigned int len, olen;
 220         XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 221
 222         XSetForeground(dpy, dc.gc, col[ColBG]);
 223         XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 224         if(!text)
 225                 return;
 226         w = 0;
 227         olen = len = strlen(text);
 228         if(len >= sizeof buf)
 229                 len = sizeof buf - 1;
 230         memcpy(buf, text, len);
 231         buf[len] = 0;
 232         h = dc.font.ascent + dc.font.descent;
 233         y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 234         x = dc.x + (h / 2);
 235         /* shorten text if necessary */
 236         while(len && (w = textnw(buf, len)) > dc.w - h)
 237                 buf[--len] = 0;
 238         if(len < olen) {
 239                 if(len > 1)
 240                         buf[len - 1] = '.';
 241                 if(len > 2)
 242                         buf[len - 2] = '.';
 243                 if(len > 3)
 244                         buf[len - 3] = '.';
 245         }
 246         if(w > dc.w)
 247                 return; /* too long */
 248         XSetForeground(dpy, dc.gc, col[ColFG]);
 249         if(dc.font.set)
 250                 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
 251         else
 252                 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 253 }
 254
 255 void *
 256 emalloc(unsigned int size) {
 257         void *res = malloc(size);
 258
 259         if(!res)
 260                 eprint("fatal: could not malloc() %u bytes\n", size);
 261         return res;
 262 }
 263
 264 void
 265 eprint(const char *errstr, ...) {
 266         va_list ap;
 267
 268         va_start(ap, errstr);
 269         vfprintf(stderr, errstr, ap);
 270         va_end(ap);
 271         exit(EXIT_FAILURE);
 272 }
 273
 274 char *
 275 estrdup(const char *str) {
 276         void *res = strdup(str);
 277
 278         if(!res)
 279                 eprint("fatal: could not malloc() %u bytes\n", strlen(str));
 280         return res;
 281 }
 282
 283 unsigned long
 284 getcolor(const char *colstr) {
 285         Colormap cmap = DefaultColormap(dpy, screen);
 286         XColor color;
 287
 288         if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
 289                 eprint("error, cannot allocate color '%s'\n", colstr);
 290         return color.pixel;
 291 }
 292
 293 Bool
 294 grabkeyboard(void) {
 295         unsigned int len;
 296
 297         for(len = 1000; len; len--) {
 298                 if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
 299                 == GrabSuccess)
 300                         break;
 301                 usleep(1000);
 302         }
 303         return len > 0;
 304 }
 305
 306 void
 307 initfont(const char *fontstr) {
 308         char *def, **missing;
 309         int i, n;
 310
 311         if(!fontstr || fontstr[0] == '\0')
 312                 eprint("error, cannot load font: '%s'\n", fontstr);
 313         missing = NULL;
 314         if(dc.font.set)
 315                 XFreeFontSet(dpy, dc.font.set);
 316         dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
 317         if(missing)
 318                 XFreeStringList(missing);
 319         if(dc.font.set) {
 320                 XFontSetExtents *font_extents;
 321                 XFontStruct **xfonts;
 322                 char **font_names;
 323                 dc.font.ascent = dc.font.descent = 0;
 324                 font_extents = XExtentsOfFontSet(dc.font.set);
 325                 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
 326                 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
 327                         if(dc.font.ascent < (*xfonts)->ascent)
 328                                 dc.font.ascent = (*xfonts)->ascent;
 329                         if(dc.font.descent < (*xfonts)->descent)
 330                                 dc.font.descent = (*xfonts)->descent;
 331                         xfonts++;
 332                 }
 333         }
 334         else {
 335                 if(dc.font.xfont)
 336                         XFreeFont(dpy, dc.font.xfont);
 337                 dc.font.xfont = NULL;
 338                 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
 339                 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
 340                         eprint("error, cannot load font: '%s'\n", fontstr);
 341                 dc.font.ascent = dc.font.xfont->ascent;
 342                 dc.font.descent = dc.font.xfont->descent;
 343         }
 344         dc.font.height = dc.font.ascent + dc.font.descent;
 345 }
 346
 347 void
 348 kpress(XKeyEvent * e) {
 349         char buf[32];
 350         int i, num;
 351         unsigned int len;
 352         KeySym ksym;
 353
 354         len = strlen(text);
 355         buf[0] = 0;
 356         num = XLookupString(e, buf, sizeof buf, &ksym, 0);
 357         if(IsKeypadKey(ksym))
 358                 if(ksym == XK_KP_Enter)
 359                         ksym = XK_Return;
 360                 else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
 361                         ksym = (ksym - XK_KP_0) + XK_0;
 362         if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
 363         || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
 364         || IsPrivateKeypadKey(ksym))
 365                 return;
 366         /* first check if a control mask is omitted */
 367         if(e->state & ControlMask) {
 368                 switch (ksym) {
 369                 default:        /* ignore other control sequences */
 370                         return;
 371                 case XK_bracketleft:
 372                         ksym = XK_Escape;
 373                         break;
 374                 case XK_h:
 375                 case XK_H:
 376                         ksym = XK_BackSpace;
 377                         break;
 378                 case XK_i:
 379                 case XK_I:
 380                         ksym = XK_Tab;
 381                         break;
 382                 case XK_j:
 383                 case XK_J:
 384                         ksym = XK_Return;
 385                         break;
 386                 case XK_u:
 387                 case XK_U:
 388                         text[0] = 0;
 389                         match(text);
 390                         drawmenu();
 391                         return;
 392                 case XK_w:
 393                 case XK_W:
 394                         if(len) {
 395                                 i = len - 1;
 396                                 while(i >= 0 && text[i] == ' ')
 397                                         text[i--] = 0;
 398                                 while(i >= 0 && text[i] != ' ')
 399                                         text[i--] = 0;
 400                                 match(text);
 401                                 drawmenu();
 402                         }
 403                         return;
 404                 }
 405         }
 406         if(CLEANMASK(e->state) & Mod1Mask) {
 407                 switch(ksym) {
 408                 default: return;
 409                 case XK_h:
 410                         ksym = XK_Left;
 411                         break;
 412                 case XK_l:
 413                         ksym = XK_Right;
 414                         break;
 415                 case XK_j:
 416                         ksym = XK_Next;
 417                         break;
 418                 case XK_k:
 419                         ksym = XK_Prior;
 420                         break;
 421                 case XK_g:
 422                         ksym = XK_Home;
 423                         break;
 424                 case XK_G:
 425                         ksym = XK_End;
 426                         break;
 427                 }
 428         }
 429         switch(ksym) {
 430         default:
 431                 if(num && !iscntrl((int) buf[0])) {
 432                         buf[num] = 0;
 433                         if(len > 0)
 434                                 strncat(text, buf, sizeof text);
 435                         else
 436                                 strncpy(text, buf, sizeof text);
 437                         match(text);
 438                 }
 439                 break;
 440         case XK_BackSpace:
 441                 if(len) {
 442                         text[--len] = 0;
 443                         match(text);
 444                 }
 445                 break;
 446         case XK_End:
 447                 if(!item)
 448                         return;
 449                 while(next) {
 450                         sel = curr = next;
 451                         calcoffsets();
 452                 }
 453                 while(sel && sel->right)
 454                         sel = sel->right;
 455                 break;
 456         case XK_Escape:
 457                 ret = 1;
 458                 running = False;
 459                 break;
 460         case XK_Home:
 461                 if(!item)
 462                         return;
 463                 sel = curr = item;
 464                 calcoffsets();
 465                 break;
 466         case XK_Left:
 467                 if(!(sel && sel->left))
 468                         return;
 469                 sel=sel->left;
 470                 if(sel->right == curr) {
 471                         curr = prev;
 472                         calcoffsets();
 473                 }
 474                 break;
 475         case XK_Next:
 476                 if(!next)
 477                         return;
 478                 sel = curr = next;
 479                 calcoffsets();
 480                 break;
 481         case XK_Prior:
 482                 if(!prev)
 483                         return;
 484                 sel = curr = prev;
 485                 calcoffsets();
 486                 break;
 487         case XK_Return:
 488                 if((e->state & ShiftMask) && text)
 489                         fprintf(stdout, "%s", text);
 490                 else if(sel)
 491                         fprintf(stdout, "%s", sel->text);
 492                 else if(text)
 493                         fprintf(stdout, "%s", text);
 494                 fflush(stdout);
 495                 running = False;
 496                 break;
 497         case XK_Right:
 498                 if(!(sel && sel->right))
 499                         return;
 500                 sel=sel->right;
 501                 if(sel == next) {
 502                         curr = next;
 503                         calcoffsets();
 504                 }
 505                 break;
 506         case XK_Tab:
 507                 if(!sel)
 508                         return;
 509                 strncpy(text, sel->text, sizeof text);
 510                 match(text);
 511                 break;
 512         }
 513         drawmenu();
 514 }
 515
 516 void
 517 match(char *pattern) {
 518         unsigned int plen;
 519         Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
 520
 521         if(!pattern)
 522                 return;
 523         plen = strlen(pattern);
 524         item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
 525         for(i = allitems; i; i = i->next)
 526                 if(!fstrncmp(pattern, i->text, plen + 1))
 527                         appenditem(i, &lexact, &exactend);
 528                 else if(!fstrncmp(pattern, i->text, plen))
 529                         appenditem(i, &lprefix, &prefixend);
 530                 else if(fstrstr(i->text, pattern))
 531                         appenditem(i, &lsubstr, &substrend);
 532         if(lexact) {
 533                 item = lexact;
 534                 itemend = exactend;
 535         }
 536         if(lprefix) {
 537                 if(itemend) {
 538                         itemend->right = lprefix;
 539                         lprefix->left = itemend;
 540                 }
 541                 else
 542                         item = lprefix;
 543                 itemend = prefixend;
 544         }
 545         if(lsubstr) {
 546                 if(itemend) {
 547                         itemend->right = lsubstr;
 548                         lsubstr->left = itemend;
 549                 }
 550                 else
 551                         item = lsubstr;
 552         }
 553         curr = prev = next = sel = item;
 554         calcoffsets();
 555 }
 556
 557 void
 558 readstdin(void) {
 559         char *p, buf[1024];
 560         unsigned int len = 0, max = 0;
 561         Item *i, *new;
 562
 563         i = 0;
 564         while(fgets(buf, sizeof buf, stdin)) {
 565                 len = strlen(buf);
 566                 if (buf[len - 1] == '\n')
 567                         buf[len - 1] = 0;
 568                 p = estrdup(buf);
 569                 if(max < len) {
 570                         maxname = p;
 571                         max = len;
 572                 }
 573                 new = emalloc(sizeof(Item));
 574                 new->next = new->left = new->right = NULL;
 575                 new->text = p;
 576                 if(!i)
 577                         allitems = new;
 578                 else
 579                         i->next = new;
 580                 i = new;
 581         }
 582 }
 583
 584 void
 585 run(void) {
 586         XEvent ev;
 587
 588         /* main event loop */
 589         while(running && !XNextEvent(dpy, &ev))
 590                 switch (ev.type) {
 591                 default:        /* ignore all crap */
 592                         break;
 593                 case KeyPress:
 594                         kpress(&ev.xkey);
 595                         break;
 596                 case Expose:
 597                         if(ev.xexpose.count == 0)
 598                                 drawmenu();
 599                         break;
 600                 }
 601 }
 602
 603 void
 604 setup(int x, int y, int w) {
 605         unsigned int i, j;
 606         XModifierKeymap *modmap;
 607         XSetWindowAttributes wa;
 608
 609         /* init modifier map */
 610         modmap = XGetModifierMapping(dpy);
 611         for(i = 0; i < 8; i++)
 612                 for(j = 0; j < modmap->max_keypermod; j++) {
 613                         if(modmap->modifiermap[i * modmap->max_keypermod + j]
 614                         == XKeysymToKeycode(dpy, XK_Num_Lock))
 615                                 numlockmask = (1 << i);
 616                 }
 617         XFreeModifiermap(modmap);
 618
 619         /* style */
 620         dc.norm[ColBG] = getcolor(normbg);
 621         dc.norm[ColFG] = getcolor(normfg);
 622         dc.sel[ColBG] = getcolor(selbg);
 623         dc.sel[ColFG] = getcolor(selfg);
 624         initfont(font);
 625
 626         /* menu window */
 627         wa.override_redirect = 1;
 628         wa.background_pixmap = ParentRelative;
 629         wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
 630         mw = w ? w : DisplayWidth(dpy, screen);
 631         mh = dc.font.height + 2;
 632         if(y < 0) {
 633                 if(y == INT_MIN)
 634                         y = DisplayHeight(dpy, screen) - mh;
 635                 else
 636                         y = (-1 * y) - mh;
 637         }
 638         win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
 639                         DefaultDepth(dpy, screen), CopyFromParent,
 640                         DefaultVisual(dpy, screen),
 641                         CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
 642
 643         /* pixmap */
 644         dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
 645         dc.gc = XCreateGC(dpy, root, 0, 0);
 646         XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
 647         if(!dc.font.set)
 648                 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
 649         if(maxname)
 650                 cmdw = textw(maxname);
 651         if(cmdw > mw / 3)
 652                 cmdw = mw / 3;
 653         if(prompt)
 654                 promptw = textw(prompt);
 655         if(promptw > mw / 5)
 656                 promptw = mw / 5;
 657         text[0] = 0;
 658         match(text);
 659         XMapRaised(dpy, win);
 660 }
 661
 662 unsigned int
 663 textnw(const char *text, unsigned int len) {
 664         XRectangle r;
 665
 666         if(dc.font.set) {
 667                 XmbTextExtents(dc.font.set, text, len, NULL, &r);
 668                 return r.width;
 669         }
 670         return XTextWidth(dc.font.xfont, text, len);
 671 }
 672
 673 unsigned int
 674 textw(const char *text) {
 675         return textnw(text, strlen(text)) + dc.font.height;
 676 }
 677
 678 int
 679 main(int argc, char *argv[]) {
 680         int x = 0, y = 0, w = 0;
 681         unsigned int i;
 682
 683         /* command line args */
 684         for(i = 1; i < argc; i++)
 685                 if(!strcmp(argv[i], "-i")) {
 686                         fstrncmp = strncasecmp;
 687                         fstrstr = cistrstr;
 688                 }
 689                 else if(!strcmp(argv[i], "-fn")) {
 690                         if(++i < argc) font = argv[i];
 691                 }
 692                 else if(!strcmp(argv[i], "-nb")) {
 693                         if(++i < argc) normbg = argv[i];
 694                 }
 695                 else if(!strcmp(argv[i], "-nf")) {
 696                         if(++i < argc) normfg = argv[i];
 697                 }
 698                 else if(!strcmp(argv[i], "-p")) {
 699                         if(++i < argc) prompt = argv[i];
 700                 }
 701                 else if(!strcmp(argv[i], "-sb")) {
 702                         if(++i < argc) selbg = argv[i];
 703                 }
 704                 else if(!strcmp(argv[i], "-sf")) {
 705                         if(++i < argc) selfg = argv[i];
 706                 }
 707                 else if(!strcmp(argv[i], "-x")) {
 708                         if(++i < argc) x = atoi(argv[i]);
 709                 }
 710                 else if(!strcmp(argv[i], "-y")) {
 711                         if(++i < argc)
 712                                 if(!strcmp(argv[i], "-0"))
 713                                         y = INT_MIN;
 714                                 else
 715                                         y = atoi(argv[i]);
 716                 }
 717                 else if(!strcmp(argv[i], "-w")) {
 718                         if(++i < argc) w = atoi(argv[i]);
 719                 }
 720                 else if(!strcmp(argv[i], "-v"))
 721                         eprint("dmenu-"VERSION", © 2006-2008 dmenu engineers, see LICENSE for details\n");
 722                 else
 723                         eprint("usage: dmenu [-i] [-fn <font>] [-nb <color>] [-nf <color>]\n"
 724                                "             [-p <prompt>] [-sb <color>] [-sf <color>]\n"
 725                                "             [-x <x>] [-y <y>] [-w <w>] [-v]\n");
 726         setlocale(LC_CTYPE, "");
 727         dpy = XOpenDisplay(0);
 728         if(!dpy)
 729                 eprint("dmenu: cannot open display\n");
 730         screen = DefaultScreen(dpy);
 731         root = RootWindow(dpy, screen);
 732
 733         if(isatty(STDIN_FILENO)) {
 734                 readstdin();
 735                 running = grabkeyboard();
 736         }
 737         else { /* prevent keypress loss */
 738                 running = grabkeyboard();
 739                 readstdin();
 740         }
 741
 742         setup(x, y, w);
 743         drawmenu();
 744         XSync(dpy, False);
 745         run();
 746         cleanup();
 747         XCloseDisplay(dpy);
 748         return ret;
 749 }