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 <stdlib.h>
   6 #include <stdio.h>
   7 #include <string.h>
   8 #include <unistd.h>
   9 #include <X11/Xlib.h>
  10 #include <X11/Xutil.h>
  11 #include <X11/keysym.h>
  12 #ifdef XINERAMA
  13 #include <X11/extensions/Xinerama.h>
  14 #endif
  15
  16 /* macros */
  17 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
  18
  19 /* enums */
  20 enum { ColFG, ColBG, ColLast };
  21
  22 /* typedefs */
  23 typedef struct {
  24         int x, y, w, h;
  25         unsigned long norm[ColLast];
  26         unsigned long sel[ColLast];
  27         Drawable drawable;
  28         GC gc;
  29         struct {
  30                 XFontStruct *xfont;
  31                 XFontSet set;
  32                 int ascent;
  33                 int descent;
  34                 int height;
  35         } font;
  36 } DC; /* draw context */
  37
  38 typedef struct Item Item;
  39 struct Item {
  40         char *text;
  41         Item *next;             /* traverses all items */
  42         Item *left, *right;     /* traverses items matching current search pattern */
  43 };
  44
  45 /* forward declarations */
  46 void appenditem(Item *i, Item **list, Item **last);
  47 void calcoffsets(void);
  48 char *cistrstr(const char *s, const char *sub);
  49 void cleanup(void);
  50 void drawmenu(void);
  51 void drawtext(const char *text, unsigned long col[ColLast]);
  52 void *emalloc(unsigned int size);
  53 void eprint(const char *errstr, ...);
  54 char *estrdup(const char *str);
  55 unsigned long getcolor(const char *colstr);
  56 Bool grabkeyboard(void);
  57 void initfont(const char *fontstr);
  58 void kpress(XKeyEvent * e);
  59 void match(char *pattern);
  60 void readstdin(void);
  61 void run(void);
  62 void setup(Bool topbar);
  63 unsigned int textnw(const char *text, unsigned int len);
  64 unsigned int textw(const char *text);
  65
  66 #include "config.h"
  67
  68 /* variables */
  69 char *font = FONT;
  70 char *maxname = NULL;
  71 char *normbg = NORMBGCOLOR;
  72 char *normfg = NORMFGCOLOR;
  73 char *prompt = NULL;
  74 char *selbg = SELBGCOLOR;
  75 char *selfg = SELFGCOLOR;
  76 char text[4096];
  77 int screen;
  78 int ret = 0;
  79 unsigned int cmdw = 0;
  80 unsigned int mw, mh;
  81 unsigned int promptw = 0;
  82 unsigned int numlockmask = 0;
  83 Bool running = True;
  84 Display *dpy;
  85 DC dc = {0};
  86 Item *allitems = NULL;  /* first of all items */
  87 Item *item = NULL;      /* first of pattern matching items */
  88 Item *sel = NULL;
  89 Item *next = NULL;
  90 Item *prev = NULL;
  91 Item *curr = NULL;
  92 Window root, win;
  93 int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
  94 char *(*fstrstr)(const char *, const char *) = strstr;
  95
  96 void
  97 appenditem(Item *i, Item **list, Item **last) {
  98         if(!(*last))
  99                 *list = i;
 100         else
 101                 (*last)->right = i;
 102         i->left = *last;
 103         i->right = NULL;
 104         *last = i;
 105 }
 106
 107 void
 108 calcoffsets(void) {
 109         unsigned int tw, w;
 110
 111         if(!curr)
 112                 return;
 113         w = promptw + cmdw + 2 * SPACE;
 114         for(next = curr; next; next=next->right) {
 115                 tw = textw(next->text);
 116                 if(tw > mw / 3)
 117                         tw = mw / 3;
 118                 w += tw;
 119                 if(w > mw)
 120                         break;
 121         }
 122         w = promptw + cmdw + 2 * SPACE;
 123         for(prev = curr; prev && prev->left; prev=prev->left) {
 124                 tw = textw(prev->left->text);
 125                 if(tw > mw / 3)
 126                         tw = mw / 3;
 127                 w += tw;
 128                 if(w > mw)
 129                         break;
 130         }
 131 }
 132
 133 char *
 134 cistrstr(const char *s, const char *sub) {
 135         int c, csub;
 136         unsigned int len;
 137
 138         if(!sub)
 139                 return (char *)s;
 140         if((c = *sub++) != 0) {
 141                 c = tolower(c);
 142                 len = strlen(sub);
 143                 do {
 144                         do {
 145                                 if((csub = *s++) == 0)
 146                                         return (NULL);
 147                         }
 148                         while(tolower(csub) != c);
 149                 }
 150                 while(strncasecmp(s, sub, len) != 0);
 151                 s--;
 152         }
 153         return (char *)s;
 154 }
 155
 156 void
 157 cleanup(void) {
 158         Item *itm;
 159
 160         while(allitems) {
 161                 itm = allitems->next;
 162                 free(allitems->text);
 163                 free(allitems);
 164                 allitems = itm;
 165         }
 166         if(dc.font.set)
 167                 XFreeFontSet(dpy, dc.font.set);
 168         else
 169                 XFreeFont(dpy, dc.font.xfont);
 170         XFreePixmap(dpy, dc.drawable);
 171         XFreeGC(dpy, dc.gc);
 172         XDestroyWindow(dpy, win);
 173         XUngrabKeyboard(dpy, CurrentTime);
 174 }
 175
 176 void
 177 drawmenu(void) {
 178         Item *i;
 179
 180         dc.x = 0;
 181         dc.y = 0;
 182         dc.w = mw;
 183         dc.h = mh;
 184         drawtext(NULL, dc.norm);
 185         /* print prompt? */
 186         if(promptw) {
 187                 dc.w = promptw;
 188                 drawtext(prompt, dc.sel);
 189         }
 190         dc.x += promptw;
 191         dc.w = mw - promptw;
 192         /* print command */
 193         if(cmdw && item)
 194                 dc.w = cmdw;
 195         drawtext(text[0] ? text : NULL, dc.norm);
 196         dc.x += cmdw;
 197         if(curr) {
 198                 dc.w = SPACE;
 199                 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
 200                 dc.x += dc.w;
 201                 /* determine maximum items */
 202                 for(i = curr; i != next; i=i->right) {
 203                         dc.w = textw(i->text);
 204                         if(dc.w > mw / 3)
 205                                 dc.w = mw / 3;
 206                         drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
 207                         dc.x += dc.w;
 208                 }
 209                 dc.x = mw - SPACE;
 210                 dc.w = SPACE;
 211                 drawtext(next ? ">" : NULL, dc.norm);
 212         }
 213         XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
 214         XFlush(dpy);
 215 }
 216
 217 void
 218 drawtext(const char *text, unsigned long col[ColLast]) {
 219         int x, y, w, h;
 220         static char buf[256];
 221         unsigned int len, olen;
 222         XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 223
 224         XSetForeground(dpy, dc.gc, col[ColBG]);
 225         XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 226         if(!text)
 227                 return;
 228         w = 0;
 229         olen = len = strlen(text);
 230         if(len >= sizeof buf)
 231                 len = sizeof buf - 1;
 232         memcpy(buf, text, len);
 233         buf[len] = 0;
 234         h = dc.font.ascent + dc.font.descent;
 235         y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
 236         x = dc.x + (h / 2);
 237         /* shorten text if necessary */
 238         while(len && (w = textnw(buf, len)) > dc.w - h)
 239                 buf[--len] = 0;
 240         if(len < olen) {
 241                 if(len > 1)
 242                         buf[len - 1] = '.';
 243                 if(len > 2)
 244                         buf[len - 2] = '.';
 245                 if(len > 3)
 246                         buf[len - 3] = '.';
 247         }
 248         if(w > dc.w)
 249                 return; /* too long */
 250         XSetForeground(dpy, dc.gc, col[ColFG]);
 251         if(dc.font.set)
 252                 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
 253         else
 254                 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 255 }
 256
 257 void *
 258 emalloc(unsigned int size) {
 259         void *res = malloc(size);
 260
 261         if(!res)
 262                 eprint("fatal: could not malloc() %u bytes\n", size);
 263         return res;
 264 }
 265
 266 void
 267 eprint(const char *errstr, ...) {
 268         va_list ap;
 269
 270         va_start(ap, errstr);
 271         vfprintf(stderr, errstr, ap);
 272         va_end(ap);
 273         exit(EXIT_FAILURE);
 274 }
 275
 276 char *
 277 estrdup(const char *str) {
 278         void *res = strdup(str);
 279
 280         if(!res)
 281                 eprint("fatal: could not malloc() %u bytes\n", strlen(str));
 282         return res;
 283 }
 284
 285 unsigned long
 286 getcolor(const char *colstr) {
 287         Colormap cmap = DefaultColormap(dpy, screen);
 288         XColor color;
 289
 290         if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
 291                 eprint("error, cannot allocate color '%s'\n", colstr);
 292         return color.pixel;
 293 }
 294
 295 Bool
 296 grabkeyboard(void) {
 297         unsigned int len;
 298
 299         for(len = 1000; len; len--) {
 300                 if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
 301                 == GrabSuccess)
 302                         break;
 303                 usleep(1000);
 304         }
 305         return len > 0;
 306 }
 307
 308 void
 309 initfont(const char *fontstr) {
 310         char *def, **missing;
 311         int i, n;
 312
 313         if(!fontstr || fontstr[0] == '\0')
 314                 eprint("error, cannot load font: '%s'\n", fontstr);
 315         missing = NULL;
 316         if(dc.font.set)
 317                 XFreeFontSet(dpy, dc.font.set);
 318         dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
 319         if(missing)
 320                 XFreeStringList(missing);
 321         if(dc.font.set) {
 322                 XFontSetExtents *font_extents;
 323                 XFontStruct **xfonts;
 324                 char **font_names;
 325                 dc.font.ascent = dc.font.descent = 0;
 326                 font_extents = XExtentsOfFontSet(dc.font.set);
 327                 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
 328                 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
 329                         if(dc.font.ascent < (*xfonts)->ascent)
 330                                 dc.font.ascent = (*xfonts)->ascent;
 331                         if(dc.font.descent < (*xfonts)->descent)
 332                                 dc.font.descent = (*xfonts)->descent;
 333                         xfonts++;
 334                 }
 335         }
 336         else {
 337                 if(dc.font.xfont)
 338                         XFreeFont(dpy, dc.font.xfont);
 339                 dc.font.xfont = NULL;
 340                 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
 341                 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
 342                         eprint("error, cannot load font: '%s'\n", fontstr);
 343                 dc.font.ascent = dc.font.xfont->ascent;
 344                 dc.font.descent = dc.font.xfont->descent;
 345         }
 346         dc.font.height = dc.font.ascent + dc.font.descent;
 347 }
 348
 349 void
 350 kpress(XKeyEvent * e) {
 351         char buf[32];
 352         int i, num;
 353         unsigned int len;
 354         KeySym ksym;
 355
 356         len = strlen(text);
 357         buf[0] = 0;
 358         num = XLookupString(e, buf, sizeof buf, &ksym, 0);
 359         if(IsKeypadKey(ksym))
 360                 if(ksym == XK_KP_Enter)
 361                         ksym = XK_Return;
 362                 else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
 363                         ksym = (ksym - XK_KP_0) + XK_0;
 364         if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
 365         || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
 366         || IsPrivateKeypadKey(ksym))
 367                 return;
 368         /* first check if a control mask is omitted */
 369         if(e->state & ControlMask) {
 370                 switch (ksym) {
 371                 default:        /* ignore other control sequences */
 372                         return;
 373                 case XK_bracketleft:
 374                         ksym = XK_Escape;
 375                         break;
 376                 case XK_h:
 377                 case XK_H:
 378                         ksym = XK_BackSpace;
 379                         break;
 380                 case XK_i:
 381                 case XK_I:
 382                         ksym = XK_Tab;
 383                         break;
 384                 case XK_j:
 385                 case XK_J:
 386                         ksym = XK_Return;
 387                         break;
 388                 case XK_u:
 389                 case XK_U:
 390                         text[0] = 0;
 391                         match(text);
 392                         drawmenu();
 393                         return;
 394                 case XK_w:
 395                 case XK_W:
 396                         if(len) {
 397                                 i = len - 1;
 398                                 while(i >= 0 && text[i] == ' ')
 399                                         text[i--] = 0;
 400                                 while(i >= 0 && text[i] != ' ')
 401                                         text[i--] = 0;
 402                                 match(text);
 403                                 drawmenu();
 404                         }
 405                         return;
 406                 }
 407         }
 408         if(CLEANMASK(e->state) & Mod1Mask) {
 409                 switch(ksym) {
 410                 default: return;
 411                 case XK_h:
 412                         ksym = XK_Left;
 413                         break;
 414                 case XK_l:
 415                         ksym = XK_Right;
 416                         break;
 417                 case XK_j:
 418                         ksym = XK_Next;
 419                         break;
 420                 case XK_k:
 421                         ksym = XK_Prior;
 422                         break;
 423                 case XK_g:
 424                         ksym = XK_Home;
 425                         break;
 426                 case XK_G:
 427                         ksym = XK_End;
 428                         break;
 429                 }
 430         }
 431         switch(ksym) {
 432         default:
 433                 if(num && !iscntrl((int) buf[0])) {
 434                         buf[num] = 0;
 435                         if(len > 0)
 436                                 strncat(text, buf, sizeof text);
 437                         else
 438                                 strncpy(text, buf, sizeof text);
 439                         match(text);
 440                 }
 441                 break;
 442         case XK_BackSpace:
 443                 if(len) {
 444                         text[--len] = 0;
 445                         match(text);
 446                 }
 447                 break;
 448         case XK_End:
 449                 if(!item)
 450                         return;
 451                 while(next) {
 452                         sel = curr = next;
 453                         calcoffsets();
 454                 }
 455                 while(sel && sel->right)
 456                         sel = sel->right;
 457                 break;
 458         case XK_Escape:
 459                 ret = 1;
 460                 running = False;
 461                 break;
 462         case XK_Home:
 463                 if(!item)
 464                         return;
 465                 sel = curr = item;
 466                 calcoffsets();
 467                 break;
 468         case XK_Left:
 469                 if(!(sel && sel->left))
 470                         return;
 471                 sel=sel->left;
 472                 if(sel->right == curr) {
 473                         curr = prev;
 474                         calcoffsets();
 475                 }
 476                 break;
 477         case XK_Next:
 478                 if(!next)
 479                         return;
 480                 sel = curr = next;
 481                 calcoffsets();
 482                 break;
 483         case XK_Prior:
 484                 if(!prev)
 485                         return;
 486                 sel = curr = prev;
 487                 calcoffsets();
 488                 break;
 489         case XK_Return:
 490                 if((e->state & ShiftMask) && text)
 491                         fprintf(stdout, "%s", text);
 492                 else if(sel)
 493                         fprintf(stdout, "%s", sel->text);
 494                 else if(text)
 495                         fprintf(stdout, "%s", text);
 496                 fflush(stdout);
 497                 running = False;
 498                 break;
 499         case XK_Right:
 500                 if(!(sel && sel->right))
 501                         return;
 502                 sel=sel->right;
 503                 if(sel == next) {
 504                         curr = next;
 505                         calcoffsets();
 506                 }
 507                 break;
 508         case XK_Tab:
 509                 if(!sel)
 510                         return;
 511                 strncpy(text, sel->text, sizeof text);
 512                 match(text);
 513                 break;
 514         }
 515         drawmenu();
 516 }
 517
 518 void
 519 match(char *pattern) {
 520         unsigned int plen;
 521         Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
 522
 523         if(!pattern)
 524                 return;
 525         plen = strlen(pattern);
 526         item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
 527         for(i = allitems; i; i = i->next)
 528                 if(!fstrncmp(pattern, i->text, plen + 1))
 529                         appenditem(i, &lexact, &exactend);
 530                 else if(!fstrncmp(pattern, i->text, plen))
 531                         appenditem(i, &lprefix, &prefixend);
 532                 else if(fstrstr(i->text, pattern))
 533                         appenditem(i, &lsubstr, &substrend);
 534         if(lexact) {
 535                 item = lexact;
 536                 itemend = exactend;
 537         }
 538         if(lprefix) {
 539                 if(itemend) {
 540                         itemend->right = lprefix;
 541                         lprefix->left = itemend;
 542                 }
 543                 else
 544                         item = lprefix;
 545                 itemend = prefixend;
 546         }
 547         if(lsubstr) {
 548                 if(itemend) {
 549                         itemend->right = lsubstr;
 550                         lsubstr->left = itemend;
 551                 }
 552                 else
 553                         item = lsubstr;
 554         }
 555         curr = prev = next = sel = item;
 556         calcoffsets();
 557 }
 558
 559 void
 560 readstdin(void) {
 561         char *p, buf[1024];
 562         unsigned int len = 0, max = 0;
 563         Item *i, *new;
 564
 565         i = 0;
 566         while(fgets(buf, sizeof buf, stdin)) {
 567                 len = strlen(buf);
 568                 if (buf[len - 1] == '\n')
 569                         buf[len - 1] = 0;
 570                 p = estrdup(buf);
 571                 if(max < len) {
 572                         maxname = p;
 573                         max = len;
 574                 }
 575                 new = emalloc(sizeof(Item));
 576                 new->next = new->left = new->right = NULL;
 577                 new->text = p;
 578                 if(!i)
 579                         allitems = new;
 580                 else
 581                         i->next = new;
 582                 i = new;
 583         }
 584 }
 585
 586 void
 587 run(void) {
 588         XEvent ev;
 589
 590         /* main event loop */
 591         while(running && !XNextEvent(dpy, &ev))
 592                 switch (ev.type) {
 593                 default:        /* ignore all crap */
 594                         break;
 595                 case KeyPress:
 596                         kpress(&ev.xkey);
 597                         break;
 598                 case Expose:
 599                         if(ev.xexpose.count == 0)
 600                                 drawmenu();
 601                         break;
 602                 }
 603 }
 604
 605 void
 606 setup(Bool topbar) {
 607         int i, j, x, y;
 608         XModifierKeymap *modmap;
 609         XSetWindowAttributes wa;
 610 #if XINERAMA
 611         XineramaScreenInfo *info = NULL;
 612 #endif
 613
 614         /* init modifier map */
 615         modmap = XGetModifierMapping(dpy);
 616         for(i = 0; i < 8; i++)
 617                 for(j = 0; j < modmap->max_keypermod; j++) {
 618                         if(modmap->modifiermap[i * modmap->max_keypermod + j]
 619                         == XKeysymToKeycode(dpy, XK_Num_Lock))
 620                                 numlockmask = (1 << i);
 621                 }
 622         XFreeModifiermap(modmap);
 623
 624         /* style */
 625         dc.norm[ColBG] = getcolor(normbg);
 626         dc.norm[ColFG] = getcolor(normfg);
 627         dc.sel[ColBG] = getcolor(selbg);
 628         dc.sel[ColFG] = getcolor(selfg);
 629         initfont(font);
 630
 631         /* menu window */
 632         wa.override_redirect = 1;
 633         wa.background_pixmap = ParentRelative;
 634         wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
 635
 636         /* menu window geometry */
 637         mh = dc.font.height + 2;
 638 #if XINERAMA
 639         if(XineramaIsActive(dpy)) {
 640                 info = XineramaQueryScreens(dpy, &i);
 641                 x = info[0].x_org;
 642                 y = topbar ? info[0].y_org : info[0].y_org + info[0].height - mh;
 643                 mw = info[0].width;
 644                 XFree(info);
 645         }
 646         else
 647 #endif
 648         {
 649                 x = 0;
 650                 y = topbar ? 0 : DisplayHeight(dpy, screen) - mh;
 651                 mw = DisplayWidth(dpy, screen);
 652         }
 653
 654         win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
 655                         DefaultDepth(dpy, screen), CopyFromParent,
 656                         DefaultVisual(dpy, screen),
 657                         CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
 658
 659         /* pixmap */
 660         dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
 661         dc.gc = XCreateGC(dpy, root, 0, 0);
 662         XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
 663         if(!dc.font.set)
 664                 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
 665         if(maxname)
 666                 cmdw = textw(maxname);
 667         if(cmdw > mw / 3)
 668                 cmdw = mw / 3;
 669         if(prompt)
 670                 promptw = textw(prompt);
 671         if(promptw > mw / 5)
 672                 promptw = mw / 5;
 673         text[0] = 0;
 674         match(text);
 675         XMapRaised(dpy, win);
 676 }
 677
 678 unsigned int
 679 textnw(const char *text, unsigned int len) {
 680         XRectangle r;
 681
 682         if(dc.font.set) {
 683                 XmbTextExtents(dc.font.set, text, len, NULL, &r);
 684                 return r.width;
 685         }
 686         return XTextWidth(dc.font.xfont, text, len);
 687 }
 688
 689 unsigned int
 690 textw(const char *text) {
 691         return textnw(text, strlen(text)) + dc.font.height;
 692 }
 693
 694 int
 695 main(int argc, char *argv[]) {
 696         unsigned int i;
 697         Bool topbar = True;
 698
 699         /* command line args */
 700         for(i = 1; i < argc; i++)
 701                 if(!strcmp(argv[i], "-i")) {
 702                         fstrncmp = strncasecmp;
 703                         fstrstr = cistrstr;
 704                 }
 705                 else if(!strcmp(argv[i], "-b"))
 706                         topbar = False;
 707                 else if(!strcmp(argv[i], "-fn")) {
 708                         if(++i < argc) font = argv[i];
 709                 }
 710                 else if(!strcmp(argv[i], "-nb")) {
 711                         if(++i < argc) normbg = argv[i];
 712                 }
 713                 else if(!strcmp(argv[i], "-nf")) {
 714                         if(++i < argc) normfg = argv[i];
 715                 }
 716                 else if(!strcmp(argv[i], "-p")) {
 717                         if(++i < argc) prompt = argv[i];
 718                 }
 719                 else if(!strcmp(argv[i], "-sb")) {
 720                         if(++i < argc) selbg = argv[i];
 721                 }
 722                 else if(!strcmp(argv[i], "-sf")) {
 723                         if(++i < argc) selfg = argv[i];
 724                 }
 725                 else if(!strcmp(argv[i], "-v"))
 726                         eprint("dmenu-"VERSION", © 2006-2008 dmenu engineers, see LICENSE for details\n");
 727                 else
 728                         eprint("usage: dmenu [-i] [-b] [-fn <font>] [-nb <color>] [-nf <color>]\n"
 729                                "             [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
 730         setlocale(LC_CTYPE, "");
 731         if(!(dpy = XOpenDisplay(0)))
 732                 eprint("dmenu: cannot open display\n");
 733         screen = DefaultScreen(dpy);
 734         root = RootWindow(dpy, screen);
 735
 736         if(isatty(STDIN_FILENO)) {
 737                 readstdin();
 738                 running = grabkeyboard();
 739         }
 740         else { /* prevent keypress loss */
 741                 running = grabkeyboard();
 742                 readstdin();
 743         }
 744
 745         setup(topbar);
 746         drawmenu();
 747         XSync(dpy, False);
 748         run();
 749         cleanup();
 750         XCloseDisplay(dpy);
 751         return ret;
 752 }