dmenu.c (22818B)
1 /* See LICENSE file for copyright and license details. */ 2 #include <ctype.h> 3 #include <locale.h> 4 #include <math.h> 5 #include <stdio.h> 6 #include <stdlib.h> 7 #include <string.h> 8 #include <strings.h> 9 #include <time.h> 10 #include <unistd.h> 11 12 #include <X11/Xlib.h> 13 #include <X11/Xatom.h> 14 #include <X11/Xutil.h> 15 #ifdef XINERAMA 16 #include <X11/extensions/Xinerama.h> 17 #endif 18 #include <X11/Xft/Xft.h> 19 20 #include "drw.h" 21 #include "util.h" 22 23 /* macros */ 24 #define INTERSECT(x,y,w,h,r) (MAX(0, MIN((x)+(w),(r).x_org+(r).width) - MAX((x),(r).x_org)) \ 25 * MAX(0, MIN((y)+(h),(r).y_org+(r).height) - MAX((y),(r).y_org))) 26 #define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad) 27 28 /* enums */ 29 enum { SchemeNorm, SchemeSel, SchemeOut, SchemeLast }; /* color schemes */ 30 31 struct item { 32 char *text; 33 unsigned int width; 34 struct item *left, *right; 35 int out; 36 double distance; 37 }; 38 39 static char text[BUFSIZ] = ""; 40 static char *embed; 41 static int bh, mw, mh; 42 static int inputw = 0, promptw; 43 static int lrpad; /* sum of left and right padding */ 44 static size_t cursor; 45 static struct item *items = NULL; 46 static struct item *matches, *matchend; 47 static struct item *prev, *curr, *next, *sel; 48 static int mon = -1, screen; 49 50 static Atom clip, utf8; 51 static Display *dpy; 52 static Window root, parentwin, win; 53 static XIC xic; 54 55 static Drw *drw; 56 static Clr *scheme[SchemeLast]; 57 58 #include "config.h" 59 60 static int (*fstrncmp)(const char *, const char *, size_t) = strncmp; 61 static char *(*fstrstr)(const char *, const char *) = strstr; 62 63 static unsigned int 64 textw_clamp(const char *str, unsigned int n) 65 { 66 unsigned int w = drw_fontset_getwidth_clamp(drw, str, n) + lrpad; 67 return MIN(w, n); 68 } 69 70 static void 71 appenditem(struct item *item, struct item **list, struct item **last) 72 { 73 if (*last) 74 (*last)->right = item; 75 else 76 *list = item; 77 78 item->left = *last; 79 item->right = NULL; 80 *last = item; 81 } 82 83 static void 84 calcoffsets(void) 85 { 86 int i, n; 87 88 if (lines > 0) 89 n = lines * bh; 90 else 91 n = mw - (promptw + inputw + TEXTW("<") + TEXTW(">")); 92 /* calculate which items will begin the next page and previous page */ 93 for (i = 0, next = curr; next; next = next->right) 94 if ((i += (lines > 0) ? bh : textw_clamp(next->text, n)) > n) 95 break; 96 for (i = 0, prev = curr; prev && prev->left; prev = prev->left) 97 if ((i += (lines > 0) ? bh : textw_clamp(prev->left->text, n)) > n) 98 break; 99 } 100 101 static int 102 max_textw(void) 103 { 104 int len = 0; 105 for (struct item *item = items; item && item->text; item++) 106 len = MAX(item->width, len); 107 return len; 108 } 109 110 static void 111 cleanup(void) 112 { 113 size_t i; 114 115 XUngrabKeyboard(dpy, CurrentTime); 116 for (i = 0; i < SchemeLast; i++) 117 drw_scm_free(drw, scheme[i], 2); 118 for (i = 0; items && items[i].text; ++i) 119 free(items[i].text); 120 free(items); 121 drw_free(drw); 122 XSync(dpy, False); 123 XCloseDisplay(dpy); 124 } 125 126 static char * 127 cistrstr(const char *h, const char *n) 128 { 129 size_t i; 130 131 if (!n[0]) 132 return (char *)h; 133 134 for (; *h; ++h) { 135 for (i = 0; n[i] && tolower((unsigned char)n[i]) == 136 tolower((unsigned char)h[i]); ++i) 137 ; 138 if (n[i] == '\0') 139 return (char *)h; 140 } 141 return NULL; 142 } 143 144 static int 145 drawitem(struct item *item, int x, int y, int w) 146 { 147 if (item == sel) 148 drw_setscheme(drw, scheme[SchemeSel]); 149 else if (item->out) 150 drw_setscheme(drw, scheme[SchemeOut]); 151 else 152 drw_setscheme(drw, scheme[SchemeNorm]); 153 154 return drw_text(drw, x, y, w, bh, lrpad / 2, item->text, 0); 155 } 156 157 static void 158 drawmenu(void) 159 { 160 unsigned int curpos; 161 struct item *item; 162 int x = 0, y = 0, w; 163 164 drw_setscheme(drw, scheme[SchemeNorm]); 165 drw_rect(drw, 0, 0, mw, mh, 1, 1); 166 167 if (prompt && *prompt) { 168 drw_setscheme(drw, scheme[SchemeSel]); 169 x = drw_text(drw, x, 0, promptw, bh, lrpad / 2, prompt, 0); 170 } 171 /* draw input field */ 172 w = (lines > 0 || !matches) ? mw - x : inputw; 173 drw_setscheme(drw, scheme[SchemeNorm]); 174 drw_text(drw, x, 0, w, bh, lrpad / 2, text, 0); 175 176 curpos = TEXTW(text) - TEXTW(&text[cursor]); 177 if ((curpos += lrpad / 2 - 1) < w) { 178 drw_setscheme(drw, scheme[SchemeNorm]); 179 drw_rect(drw, x + curpos, 2, 2, bh - 4, 1, 0); 180 } 181 182 if (lines > 0) { 183 /* draw vertical list */ 184 for (item = curr; item != next; item = item->right) 185 drawitem(item, x, y += bh, mw - x); 186 } else if (matches) { 187 /* draw horizontal list */ 188 x += inputw; 189 w = TEXTW("<"); 190 if (curr->left) { 191 drw_setscheme(drw, scheme[SchemeNorm]); 192 drw_text(drw, x, 0, w, bh, lrpad / 2, "<", 0); 193 } 194 x += w; 195 for (item = curr; item != next; item = item->right) 196 x = drawitem(item, x, 0, textw_clamp(item->text, mw - x - TEXTW(">"))); 197 if (next) { 198 w = TEXTW(">"); 199 drw_setscheme(drw, scheme[SchemeNorm]); 200 drw_text(drw, mw - w, 0, w, bh, lrpad / 2, ">", 0); 201 } 202 } 203 drw_map(drw, win, 0, 0, mw, mh); 204 } 205 206 static void 207 grabfocus(void) 208 { 209 struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 }; 210 Window focuswin; 211 int i, revertwin; 212 213 for (i = 0; i < 100; ++i) { 214 XGetInputFocus(dpy, &focuswin, &revertwin); 215 if (focuswin == win) 216 return; 217 XSetInputFocus(dpy, win, RevertToParent, CurrentTime); 218 nanosleep(&ts, NULL); 219 } 220 die("cannot grab focus"); 221 } 222 223 static void 224 grabkeyboard(void) 225 { 226 struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 }; 227 int i; 228 229 if (embed) 230 return; 231 /* try to grab keyboard, we may have to wait for another process to ungrab */ 232 for (i = 0; i < 1000; i++) { 233 if (XGrabKeyboard(dpy, DefaultRootWindow(dpy), True, GrabModeAsync, 234 GrabModeAsync, CurrentTime) == GrabSuccess) 235 return; 236 nanosleep(&ts, NULL); 237 } 238 die("cannot grab keyboard"); 239 } 240 241 int 242 compare_distance(const void *a, const void *b) 243 { 244 struct item *da = *(struct item **) a; 245 struct item *db = *(struct item **) b; 246 247 if (!db) 248 return 1; 249 if (!da) 250 return -1; 251 252 return da->distance == db->distance ? 0 : da->distance < db->distance ? -1 : 1; 253 } 254 255 void 256 fuzzymatch(void) 257 { 258 /* bang - we have so much memory */ 259 struct item *it; 260 struct item **fuzzymatches = NULL; 261 char c; 262 int number_of_matches = 0, i, pidx, sidx, eidx; 263 int text_len = strlen(text), itext_len; 264 265 matches = matchend = NULL; 266 267 /* walk through all items */ 268 for (it = items; it && it->text; ++it) { 269 if (text_len) { 270 itext_len = strlen(it->text); 271 pidx = 0; /* pointer */ 272 sidx = eidx = -1; /* start of match, end of match */ 273 /* walk through item text */ 274 for (i = 0; i < itext_len && (c = it->text[i]); ++i) { 275 /* fuzzy match pattern */ 276 if (!fstrncmp(&text[pidx], &c, 1)) { 277 if(sidx == -1) 278 sidx = i; 279 ++pidx; 280 if (pidx == text_len) { 281 eidx = i; 282 break; 283 } 284 } 285 } 286 /* build list of matches */ 287 if (eidx != -1) { 288 /* compute distance */ 289 /* add penalty if match starts late (log(sidx+2)) 290 * add penalty for long a match without many matching characters */ 291 it->distance = log(sidx + 2) + (double)(eidx - sidx - text_len); 292 /* fprintf(stderr, "distance %s %f\n", it->text, it->distance); */ 293 appenditem(it, &matches, &matchend); 294 ++number_of_matches; 295 } 296 } else { 297 appenditem(it, &matches, &matchend); 298 } 299 } 300 301 if (number_of_matches) { 302 /* initialize array with matches */ 303 if (!(fuzzymatches = realloc(fuzzymatches, 304 number_of_matches * sizeof(struct item *)))) 305 die("cannot realloc %u bytes:", number_of_matches * sizeof(struct item *)); 306 for (i = 0, it = matches; it && i < number_of_matches; ++i, it = it->right) 307 fuzzymatches[i] = it; 308 /* sort matches according to distance */ 309 qsort(fuzzymatches, number_of_matches, sizeof(struct item*), compare_distance); 310 /* rebuild list of matches */ 311 matches = matchend = NULL; 312 for (i = 0, it = fuzzymatches[i]; i < number_of_matches && it && 313 it->text; ++i, it = fuzzymatches[i]) 314 appenditem(it, &matches, &matchend); 315 free(fuzzymatches); 316 } 317 curr = sel = matches; 318 calcoffsets(); 319 } 320 321 static void 322 match(void) 323 { 324 if (fuzzy) { 325 fuzzymatch(); 326 return; 327 } 328 static char **tokv = NULL; 329 static int tokn = 0; 330 331 char buf[sizeof text], *s; 332 int i, tokc = 0; 333 size_t len, textsize; 334 struct item *item, *lprefix, *lsubstr, *prefixend, *substrend; 335 336 strcpy(buf, text); 337 /* separate input text into tokens to be matched individually */ 338 for (s = strtok(buf, " "); s; tokv[tokc - 1] = s, s = strtok(NULL, " ")) 339 if (++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv))) 340 die("cannot realloc %zu bytes:", tokn * sizeof *tokv); 341 len = tokc ? strlen(tokv[0]) : 0; 342 343 matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL; 344 textsize = strlen(text) + 1; 345 for (item = items; item && item->text; item++) { 346 for (i = 0; i < tokc; i++) 347 if (!fstrstr(item->text, tokv[i])) 348 break; 349 if (i != tokc) /* not all tokens match */ 350 continue; 351 /* exact matches go first, then prefixes, then substrings */ 352 if (!tokc || !fstrncmp(text, item->text, textsize)) 353 appenditem(item, &matches, &matchend); 354 else if (!fstrncmp(tokv[0], item->text, len)) 355 appenditem(item, &lprefix, &prefixend); 356 else 357 appenditem(item, &lsubstr, &substrend); 358 } 359 if (lprefix) { 360 if (matches) { 361 matchend->right = lprefix; 362 lprefix->left = matchend; 363 } else 364 matches = lprefix; 365 matchend = prefixend; 366 } 367 if (lsubstr) { 368 if (matches) { 369 matchend->right = lsubstr; 370 lsubstr->left = matchend; 371 } else 372 matches = lsubstr; 373 matchend = substrend; 374 } 375 curr = sel = matches; 376 calcoffsets(); 377 } 378 379 static void 380 insert(const char *str, ssize_t n) 381 { 382 if (strlen(text) + n > sizeof text - 1) 383 return; 384 /* move existing text out of the way, insert new text, and update cursor */ 385 memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0)); 386 if (n > 0) 387 memcpy(&text[cursor], str, n); 388 cursor += n; 389 match(); 390 } 391 392 static size_t 393 nextrune(int inc) 394 { 395 ssize_t n; 396 397 /* return location of next utf8 rune in the given direction (+1 or -1) */ 398 for (n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc) 399 ; 400 return n; 401 } 402 403 static void 404 movewordedge(int dir) 405 { 406 if (dir < 0) { /* move cursor to the start of the word*/ 407 while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)])) 408 cursor = nextrune(-1); 409 while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)])) 410 cursor = nextrune(-1); 411 } else { /* move cursor to the end of the word */ 412 while (text[cursor] && strchr(worddelimiters, text[cursor])) 413 cursor = nextrune(+1); 414 while (text[cursor] && !strchr(worddelimiters, text[cursor])) 415 cursor = nextrune(+1); 416 } 417 } 418 419 static void 420 keypress(XKeyEvent *ev) 421 { 422 char buf[64]; 423 int len; 424 KeySym ksym = NoSymbol; 425 Status status; 426 427 len = XmbLookupString(xic, ev, buf, sizeof buf, &ksym, &status); 428 switch (status) { 429 default: /* XLookupNone, XBufferOverflow */ 430 return; 431 case XLookupChars: /* composed string from input method */ 432 goto insert; 433 case XLookupKeySym: 434 case XLookupBoth: /* a KeySym and a string are returned: use keysym */ 435 break; 436 } 437 438 if (ev->state & ControlMask) { 439 switch(ksym) { 440 case XK_a: ksym = XK_Home; break; 441 case XK_b: ksym = XK_Left; break; 442 case XK_c: ksym = XK_Escape; break; 443 case XK_d: ksym = XK_Delete; break; 444 case XK_e: ksym = XK_End; break; 445 case XK_f: ksym = XK_Right; break; 446 case XK_g: ksym = XK_Escape; break; 447 case XK_h: ksym = XK_BackSpace; break; 448 case XK_i: ksym = XK_Tab; break; 449 case XK_j: /* fallthrough */ 450 case XK_J: /* fallthrough */ 451 case XK_m: /* fallthrough */ 452 case XK_M: ksym = XK_Return; ev->state &= ~ControlMask; break; 453 case XK_n: ksym = XK_Down; break; 454 case XK_p: ksym = XK_Up; break; 455 456 case XK_k: /* delete right */ 457 text[cursor] = '\0'; 458 match(); 459 break; 460 case XK_u: /* delete left */ 461 insert(NULL, 0 - cursor); 462 break; 463 case XK_w: /* delete word */ 464 while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)])) 465 insert(NULL, nextrune(-1) - cursor); 466 while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)])) 467 insert(NULL, nextrune(-1) - cursor); 468 break; 469 case XK_y: /* paste selection */ 470 case XK_Y: 471 XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY, 472 utf8, utf8, win, CurrentTime); 473 return; 474 case XK_Left: 475 case XK_KP_Left: 476 movewordedge(-1); 477 goto draw; 478 case XK_Right: 479 case XK_KP_Right: 480 movewordedge(+1); 481 goto draw; 482 case XK_Return: 483 case XK_KP_Enter: 484 break; 485 case XK_bracketleft: 486 cleanup(); 487 exit(1); 488 default: 489 return; 490 } 491 } else if (ev->state & Mod1Mask) { 492 switch(ksym) { 493 case XK_b: 494 movewordedge(-1); 495 goto draw; 496 case XK_f: 497 movewordedge(+1); 498 goto draw; 499 case XK_g: ksym = XK_Home; break; 500 case XK_G: ksym = XK_End; break; 501 case XK_h: ksym = XK_Up; break; 502 case XK_j: ksym = XK_Next; break; 503 case XK_k: ksym = XK_Prior; break; 504 case XK_l: ksym = XK_Down; break; 505 default: 506 return; 507 } 508 } 509 510 switch(ksym) { 511 default: 512 insert: 513 if (!iscntrl((unsigned char)*buf)) 514 insert(buf, len); 515 break; 516 case XK_Delete: 517 case XK_KP_Delete: 518 if (text[cursor] == '\0') 519 return; 520 cursor = nextrune(+1); 521 /* fallthrough */ 522 case XK_BackSpace: 523 if (cursor == 0) 524 return; 525 insert(NULL, nextrune(-1) - cursor); 526 break; 527 case XK_End: 528 case XK_KP_End: 529 if (text[cursor] != '\0') { 530 cursor = strlen(text); 531 break; 532 } 533 if (next) { 534 /* jump to end of list and position items in reverse */ 535 curr = matchend; 536 calcoffsets(); 537 curr = prev; 538 calcoffsets(); 539 while (next && (curr = curr->right)) 540 calcoffsets(); 541 } 542 sel = matchend; 543 break; 544 case XK_Escape: 545 cleanup(); 546 exit(1); 547 case XK_Home: 548 case XK_KP_Home: 549 if (sel == matches) { 550 cursor = 0; 551 break; 552 } 553 sel = curr = matches; 554 calcoffsets(); 555 break; 556 case XK_Left: 557 case XK_KP_Left: 558 if (cursor > 0 && (!sel || !sel->left || lines > 0)) { 559 cursor = nextrune(-1); 560 break; 561 } 562 if (lines > 0) 563 return; 564 /* fallthrough */ 565 case XK_Up: 566 case XK_KP_Up: 567 if (sel && sel->left && (sel = sel->left)->right == curr) { 568 curr = prev; 569 calcoffsets(); 570 } 571 break; 572 case XK_Next: 573 case XK_KP_Next: 574 if (!next) 575 return; 576 sel = curr = next; 577 calcoffsets(); 578 break; 579 case XK_Prior: 580 case XK_KP_Prior: 581 if (!prev) 582 return; 583 sel = curr = prev; 584 calcoffsets(); 585 break; 586 case XK_Return: 587 case XK_KP_Enter: 588 puts((sel && !(ev->state & ShiftMask)) ? sel->text : text); 589 if (!(ev->state & ControlMask)) { 590 cleanup(); 591 exit(0); 592 } 593 if (sel) 594 sel->out = 1; 595 break; 596 case XK_Right: 597 case XK_KP_Right: 598 if (text[cursor] != '\0') { 599 cursor = nextrune(+1); 600 break; 601 } 602 if (lines > 0) 603 return; 604 /* fallthrough */ 605 case XK_Down: 606 case XK_KP_Down: 607 if (sel && sel->right && (sel = sel->right) == next) { 608 curr = next; 609 calcoffsets(); 610 } 611 break; 612 case XK_Tab: 613 if (!sel) 614 return; 615 cursor = strnlen(sel->text, sizeof text - 1); 616 memcpy(text, sel->text, cursor); 617 text[cursor] = '\0'; 618 match(); 619 break; 620 } 621 622 draw: 623 drawmenu(); 624 } 625 626 static void 627 paste(void) 628 { 629 char *p, *q; 630 int di; 631 unsigned long dl; 632 Atom da; 633 634 /* we have been given the current selection, now insert it into input */ 635 if (XGetWindowProperty(dpy, win, utf8, 0, (sizeof text / 4) + 1, False, 636 utf8, &da, &di, &dl, &dl, (unsigned char **)&p) 637 == Success && p) { 638 insert(p, (q = strchr(p, '\n')) ? q - p : (ssize_t)strlen(p)); 639 XFree(p); 640 } 641 drawmenu(); 642 } 643 644 static void 645 readstdin(void) 646 { 647 char *line = NULL; 648 size_t i, itemsiz = 0, linesiz = 0; 649 ssize_t len; 650 651 /* read each line from stdin and add it to the item list */ 652 for (i = 0; (len = getline(&line, &linesiz, stdin)) != -1; i++) { 653 if (i + 1 >= itemsiz) { 654 itemsiz += 256; 655 if (!(items = realloc(items, itemsiz * sizeof(*items)))) 656 die("cannot realloc %zu bytes:", itemsiz * sizeof(*items)); 657 } 658 if (line[len - 1] == '\n') 659 line[len - 1] = '\0'; 660 if (!(items[i].text = strdup(line))) 661 die("strdup:"); 662 items[i].width = TEXTW(line); 663 664 items[i].out = 0; 665 } 666 free(line); 667 if (items) 668 items[i].text = NULL; 669 lines = MIN(lines, i); 670 } 671 672 static void 673 run(void) 674 { 675 XEvent ev; 676 677 while (!XNextEvent(dpy, &ev)) { 678 if (XFilterEvent(&ev, win)) 679 continue; 680 switch(ev.type) { 681 case DestroyNotify: 682 if (ev.xdestroywindow.window != win) 683 break; 684 cleanup(); 685 exit(1); 686 case Expose: 687 if (ev.xexpose.count == 0) 688 drw_map(drw, win, 0, 0, mw, mh); 689 break; 690 case FocusIn: 691 /* regrab focus from parent window */ 692 if (ev.xfocus.window != win) 693 grabfocus(); 694 break; 695 case KeyPress: 696 keypress(&ev.xkey); 697 break; 698 case SelectionNotify: 699 if (ev.xselection.property == utf8) 700 paste(); 701 break; 702 case VisibilityNotify: 703 if (ev.xvisibility.state != VisibilityUnobscured) 704 XRaiseWindow(dpy, win); 705 break; 706 } 707 } 708 } 709 710 static void 711 setup(void) 712 { 713 int x, y, i, j; 714 unsigned int du; 715 XSetWindowAttributes swa; 716 XIM xim; 717 Window w, dw, *dws; 718 XWindowAttributes wa; 719 XClassHint ch = {"dmenu", "dmenu"}; 720 #ifdef XINERAMA 721 XineramaScreenInfo *info; 722 Window pw; 723 int a, di, n, area = 0; 724 #endif 725 /* init appearance */ 726 for (j = 0; j < SchemeLast; j++) 727 scheme[j] = drw_scm_create(drw, colors[j], 2); 728 729 clip = XInternAtom(dpy, "CLIPBOARD", False); 730 utf8 = XInternAtom(dpy, "UTF8_STRING", False); 731 732 /* calculate menu geometry */ 733 bh = drw->fonts->h + 2; 734 lines = MAX(lines, 0); 735 mh = (lines + 1) * bh; 736 promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0; 737 #ifdef XINERAMA 738 i = 0; 739 if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) { 740 XGetInputFocus(dpy, &w, &di); 741 if (mon >= 0 && mon < n) 742 i = mon; 743 else if (w != root && w != PointerRoot && w != None) { 744 /* find top-level window containing current input focus */ 745 do { 746 if (XQueryTree(dpy, (pw = w), &dw, &w, &dws, &du) && dws) 747 XFree(dws); 748 } while (w != root && w != pw); 749 /* find xinerama screen with which the window intersects most */ 750 if (XGetWindowAttributes(dpy, pw, &wa)) 751 for (j = 0; j < n; j++) 752 if ((a = INTERSECT(wa.x, wa.y, wa.width, wa.height, info[j])) > area) { 753 area = a; 754 i = j; 755 } 756 } 757 /* no focused window is on screen, so use pointer location instead */ 758 if (mon < 0 && !area && XQueryPointer(dpy, root, &dw, &dw, &x, &y, &di, &di, &du)) 759 for (i = 0; i < n; i++) 760 if (INTERSECT(x, y, 1, 1, info[i]) != 0) 761 break; 762 763 if (centered) { 764 mw = MIN(MAX(max_textw() + promptw, min_width), info[i].width); 765 x = info[i].x_org + ((info[i].width - mw) / 2); 766 y = info[i].y_org + ((info[i].height - mh) / menu_height_ratio); 767 } else { 768 x = info[i].x_org; 769 y = info[i].y_org + (topbar ? 0 : info[i].height - mh); 770 mw = info[i].width; 771 } 772 773 XFree(info); 774 } else 775 #endif 776 { 777 if (!XGetWindowAttributes(dpy, parentwin, &wa)) 778 die("could not get embedding window attributes: 0x%lx", 779 parentwin); 780 781 if (centered) { 782 mw = MIN(MAX(max_textw() + promptw, min_width), wa.width); 783 x = (wa.width - mw) / 2; 784 y = (wa.height - mh) / 2; 785 } else { 786 x = 0; 787 y = topbar ? 0 : wa.height - mh; 788 mw = wa.width; 789 } 790 } 791 promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0; 792 inputw = mw / 3; /* input width: ~33% of monitor width */ 793 match(); 794 795 /* create menu window */ 796 swa.override_redirect = True; 797 swa.background_pixel = scheme[SchemeNorm][ColBg].pixel; 798 swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask; 799 win = XCreateWindow(dpy, root, x, y, mw, mh, border_width, 800 CopyFromParent, CopyFromParent, CopyFromParent, 801 CWOverrideRedirect | CWBackPixel | CWEventMask, &swa); 802 if (border_width) 803 XSetWindowBorder(dpy, win, scheme[SchemeSel][ColBg].pixel); 804 XSetClassHint(dpy, win, &ch); 805 806 /* input methods */ 807 if ((xim = XOpenIM(dpy, NULL, NULL, NULL)) == NULL) 808 die("XOpenIM failed: could not open input device"); 809 810 xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing, 811 XNClientWindow, win, XNFocusWindow, win, NULL); 812 813 XMapRaised(dpy, win); 814 if (embed) { 815 XReparentWindow(dpy, win, parentwin, x, y); 816 XSelectInput(dpy, parentwin, FocusChangeMask | SubstructureNotifyMask); 817 if (XQueryTree(dpy, parentwin, &dw, &w, &dws, &du) && dws) { 818 for (i = 0; i < du && dws[i] != win; ++i) 819 XSelectInput(dpy, dws[i], FocusChangeMask); 820 XFree(dws); 821 } 822 grabfocus(); 823 } 824 drw_resize(drw, mw, mh); 825 drawmenu(); 826 } 827 828 static void 829 usage(void) 830 { 831 die("usage: dmenu [-bFfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n" 832 " [-nb color] [-nf color] [-sb color] [-sf color] [-w windowid]"); 833 } 834 835 int 836 main(int argc, char *argv[]) 837 { 838 XWindowAttributes wa; 839 int i, fast = 0; 840 841 for (i = 1; i < argc; i++) 842 /* these options take no arguments */ 843 if (!strcmp(argv[i], "-v")) { /* prints version information */ 844 puts("dmenu-"VERSION); 845 exit(0); 846 } else if (!strcmp(argv[i], "-b")) /* appears at the bottom of the screen */ 847 topbar = 0; 848 else if (!strcmp(argv[i], "-F")) /* disables fuzzy matching */ 849 fuzzy = 0; 850 else if (!strcmp(argv[i], "-f")) /* grabs keyboard before reading stdin */ 851 fast = 1; 852 else if (!strcmp(argv[i], "-c")) /* centers dmenu on screen */ 853 centered = 1; 854 else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */ 855 fstrncmp = strncasecmp; 856 fstrstr = cistrstr; 857 } else if (i + 1 == argc) 858 usage(); 859 /* these options take one argument */ 860 else if (!strcmp(argv[i], "-l")) /* number of lines in vertical list */ 861 lines = atoi(argv[++i]); 862 else if (!strcmp(argv[i], "-m")) 863 mon = atoi(argv[++i]); 864 else if (!strcmp(argv[i], "-p")) /* adds prompt to left of input field */ 865 prompt = argv[++i]; 866 else if (!strcmp(argv[i], "-fn")) /* font or font set */ 867 fonts[0] = argv[++i]; 868 else if (!strcmp(argv[i], "-nb")) /* normal background color */ 869 colors[SchemeNorm][ColBg] = argv[++i]; 870 else if (!strcmp(argv[i], "-nf")) /* normal foreground color */ 871 colors[SchemeNorm][ColFg] = argv[++i]; 872 else if (!strcmp(argv[i], "-sb")) /* selected background color */ 873 colors[SchemeSel][ColBg] = argv[++i]; 874 else if (!strcmp(argv[i], "-sf")) /* selected foreground color */ 875 colors[SchemeSel][ColFg] = argv[++i]; 876 else if (!strcmp(argv[i], "-w")) /* embedding window id */ 877 embed = argv[++i]; 878 else if (!strcmp(argv[i], "-bw")) 879 border_width = atoi(argv[++i]); /* border width */ 880 else 881 usage(); 882 883 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale()) 884 fputs("warning: no locale support\n", stderr); 885 if (!(dpy = XOpenDisplay(NULL))) 886 die("cannot open display"); 887 screen = DefaultScreen(dpy); 888 root = RootWindow(dpy, screen); 889 if (!embed || !(parentwin = strtol(embed, NULL, 0))) 890 parentwin = root; 891 if (!XGetWindowAttributes(dpy, parentwin, &wa)) 892 die("could not get embedding window attributes: 0x%lx", 893 parentwin); 894 drw = drw_create(dpy, screen, root, wa.width, wa.height); 895 if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) 896 die("no fonts could be loaded."); 897 lrpad = drw->fonts->h; 898 899 #ifdef __OpenBSD__ 900 if (pledge("stdio rpath", NULL) == -1) 901 die("pledge"); 902 #endif 903 904 if (fast && !isatty(0)) { 905 grabkeyboard(); 906 readstdin(); 907 } else { 908 readstdin(); 909 grabkeyboard(); 910 } 911 setup(); 912 run(); 913 914 return 1; /* unreachable */ 915 }