dmenu.c (22772B)
1 /* See LICENSE file for copyright and license details. */ 2 #include <ctype.h> 3 #include <locale.h> 4 #include <stdio.h> 5 #include <stdlib.h> 6 #include <string.h> 7 #include <strings.h> 8 #include <time.h> 9 #include <unistd.h> 10 11 #include <X11/Xlib.h> 12 #include <X11/Xatom.h> 13 #include <X11/Xproto.h> 14 #include <X11/Xutil.h> 15 #include <X11/Xresource.h> 16 #ifdef XINERAMA 17 #include <X11/extensions/Xinerama.h> 18 #endif 19 #include <X11/extensions/Xrender.h> 20 #include <X11/Xft/Xft.h> 21 22 #include "drw.h" 23 #include "util.h" 24 25 /* macros */ 26 #define INTERSECT(x,y,w,h,r) (MAX(0, MIN((x)+(w),(r).x_org+(r).width) - MAX((x),(r).x_org)) \ 27 * MAX(0, MIN((y)+(h),(r).y_org+(r).height) - MAX((y),(r).y_org))) 28 #define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad) 29 30 #define OPAQUE 0xffu 31 32 /* enums */ 33 enum { SchemeNorm, SchemeSel, SchemeOut, SchemeLast }; /* color schemes */ 34 35 struct item { 36 char *text; 37 struct item *left, *right; 38 int out; 39 }; 40 41 static char text[BUFSIZ] = ""; 42 static char *embed; 43 static int bh, mw, mh; 44 static int inputw = 0, promptw; 45 static int lrpad; /* sum of left and right padding */ 46 static size_t cursor; 47 static struct item *items = NULL; 48 static struct item *matches, *matchend; 49 static struct item *prev, *curr, *next, *sel; 50 static int mon = -1, screen; 51 52 static Atom clip, utf8; 53 static Display *dpy; 54 static Window root, parentwin, win; 55 static XIC xic; 56 57 static Drw *drw; 58 static Clr *scheme[SchemeLast]; 59 60 /* Xresources preferences */ 61 enum resource_type { 62 STRING = 0, 63 INTEGER = 1, 64 FLOAT = 2 65 }; 66 typedef struct { 67 char *name; 68 enum resource_type type; 69 void *dst; 70 } ResourcePref; 71 72 static void load_xresources(void); 73 static void resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst); 74 75 static int useargb = 0; 76 static Visual *visual; 77 static int depth; 78 static Colormap cmap; 79 80 #include "config.h" 81 82 static int (*fstrncmp)(const char *, const char *, size_t) = strncmp; 83 static char *(*fstrstr)(const char *, const char *) = strstr; 84 static void xinitvisual(); 85 86 static unsigned int 87 textw_clamp(const char *str, unsigned int n) 88 { 89 unsigned int w = drw_fontset_getwidth_clamp(drw, str, n) + lrpad; 90 return MIN(w, n); 91 } 92 93 static void 94 appenditem(struct item *item, struct item **list, struct item **last) 95 { 96 if (*last) 97 (*last)->right = item; 98 else 99 *list = item; 100 101 item->left = *last; 102 item->right = NULL; 103 *last = item; 104 } 105 106 static void 107 calcoffsets(void) 108 { 109 int i, n; 110 111 if (lines > 0) 112 n = lines * bh; 113 else 114 n = mw - (promptw + inputw + TEXTW("<") + TEXTW(">")); 115 /* calculate which items will begin the next page and previous page */ 116 for (i = 0, next = curr; next; next = next->right) 117 if ((i += (lines > 0) ? bh : textw_clamp(next->text, n)) > n) 118 break; 119 for (i = 0, prev = curr; prev && prev->left; prev = prev->left) 120 if ((i += (lines > 0) ? bh : textw_clamp(prev->left->text, n)) > n) 121 break; 122 } 123 124 static int 125 max_textw(void) 126 { 127 int len = 0; 128 for (struct item *item = items; item && item->text; item++) 129 len = MAX(TEXTW(item->text), len); 130 return len; 131 } 132 133 static void 134 cleanup(void) 135 { 136 size_t i; 137 138 XUngrabKey(dpy, AnyKey, AnyModifier, root); 139 for (i = 0; i < SchemeLast; i++) 140 free(scheme[i]); 141 for (i = 0; items && items[i].text; ++i) 142 free(items[i].text); 143 free(items); 144 drw_free(drw); 145 XSync(dpy, False); 146 XCloseDisplay(dpy); 147 } 148 149 static char * 150 cistrstr(const char *h, const char *n) 151 { 152 size_t i; 153 154 if (!n[0]) 155 return (char *)h; 156 157 for (; *h; ++h) { 158 for (i = 0; n[i] && tolower((unsigned char)n[i]) == 159 tolower((unsigned char)h[i]); ++i) 160 ; 161 if (n[i] == '\0') 162 return (char *)h; 163 } 164 return NULL; 165 } 166 167 static int 168 drawitem(struct item *item, int x, int y, int w) 169 { 170 if (item == sel) 171 drw_setscheme(drw, scheme[SchemeSel]); 172 else if (item->out) 173 drw_setscheme(drw, scheme[SchemeOut]); 174 else 175 drw_setscheme(drw, scheme[SchemeNorm]); 176 177 return drw_text(drw, x, y, w, bh, lrpad / 2, item->text, 0); 178 } 179 180 static void 181 drawmenu(void) 182 { 183 unsigned int curpos; 184 struct item *item; 185 int x = 0, y = 0, w; 186 187 drw_setscheme(drw, scheme[SchemeNorm]); 188 drw_rect(drw, 0, 0, mw, mh, 1, 1); 189 190 if (prompt && *prompt) { 191 drw_setscheme(drw, scheme[SchemeSel]); 192 x = drw_text(drw, x, 0, promptw, bh, lrpad / 2, prompt, 0); 193 } 194 /* draw input field */ 195 w = (lines > 0 || !matches) ? mw - x : inputw; 196 drw_setscheme(drw, scheme[SchemeNorm]); 197 drw_text(drw, x, 0, w, bh, lrpad / 2, text, 0); 198 199 curpos = TEXTW(text) - TEXTW(&text[cursor]); 200 if ((curpos += lrpad / 2 - 1) < w) { 201 drw_setscheme(drw, scheme[SchemeNorm]); 202 drw_rect(drw, x + curpos, 2, 2, bh - 4, 1, 0); 203 } 204 205 if (lines > 0) { 206 /* draw vertical list */ 207 for (item = curr; item != next; item = item->right) 208 drawitem(item, x, y += bh, mw - x); 209 } else if (matches) { 210 /* draw horizontal list */ 211 x += inputw; 212 w = TEXTW("<"); 213 if (curr->left) { 214 drw_setscheme(drw, scheme[SchemeNorm]); 215 drw_text(drw, x, 0, w, bh, lrpad / 2, "<", 0); 216 } 217 x += w; 218 for (item = curr; item != next; item = item->right) 219 x = drawitem(item, x, 0, textw_clamp(item->text, mw - x - TEXTW(">"))); 220 if (next) { 221 w = TEXTW(">"); 222 drw_setscheme(drw, scheme[SchemeNorm]); 223 drw_text(drw, mw - w, 0, w, bh, lrpad / 2, ">", 0); 224 } 225 } 226 drw_map(drw, win, 0, 0, mw, mh); 227 } 228 229 static void 230 grabfocus(void) 231 { 232 struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 }; 233 Window focuswin; 234 int i, revertwin; 235 236 for (i = 0; i < 100; ++i) { 237 XGetInputFocus(dpy, &focuswin, &revertwin); 238 if (focuswin == win) 239 return; 240 XSetInputFocus(dpy, win, RevertToParent, CurrentTime); 241 nanosleep(&ts, NULL); 242 } 243 die("cannot grab focus"); 244 } 245 246 static void 247 grabkeyboard(void) 248 { 249 struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 }; 250 int i; 251 252 if (embed) 253 return; 254 /* try to grab keyboard, we may have to wait for another process to ungrab */ 255 for (i = 0; i < 1000; i++) { 256 if (XGrabKeyboard(dpy, DefaultRootWindow(dpy), True, GrabModeAsync, 257 GrabModeAsync, CurrentTime) == GrabSuccess) 258 return; 259 nanosleep(&ts, NULL); 260 } 261 die("cannot grab keyboard"); 262 } 263 264 static void 265 match(void) 266 { 267 static char **tokv = NULL; 268 static int tokn = 0; 269 270 char buf[sizeof text], *s; 271 int i, tokc = 0; 272 size_t len, textsize; 273 struct item *item, *lprefix, *lsubstr, *prefixend, *substrend; 274 275 strcpy(buf, text); 276 /* separate input text into tokens to be matched individually */ 277 for (s = strtok(buf, " "); s; tokv[tokc - 1] = s, s = strtok(NULL, " ")) 278 if (++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv))) 279 die("cannot realloc %zu bytes:", tokn * sizeof *tokv); 280 len = tokc ? strlen(tokv[0]) : 0; 281 282 matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL; 283 textsize = strlen(text) + 1; 284 for (item = items; item && item->text; item++) { 285 for (i = 0; i < tokc; i++) 286 if (!fstrstr(item->text, tokv[i])) 287 break; 288 if (i != tokc) /* not all tokens match */ 289 continue; 290 /* exact matches go first, then prefixes, then substrings */ 291 if (!tokc || !fstrncmp(text, item->text, textsize)) 292 appenditem(item, &matches, &matchend); 293 else if (!fstrncmp(tokv[0], item->text, len)) 294 appenditem(item, &lprefix, &prefixend); 295 else 296 appenditem(item, &lsubstr, &substrend); 297 } 298 if (lprefix) { 299 if (matches) { 300 matchend->right = lprefix; 301 lprefix->left = matchend; 302 } else 303 matches = lprefix; 304 matchend = prefixend; 305 } 306 if (lsubstr) { 307 if (matches) { 308 matchend->right = lsubstr; 309 lsubstr->left = matchend; 310 } else 311 matches = lsubstr; 312 matchend = substrend; 313 } 314 curr = sel = matches; 315 calcoffsets(); 316 } 317 318 static void 319 insert(const char *str, ssize_t n) 320 { 321 if (strlen(text) + n > sizeof text - 1) 322 return; 323 /* move existing text out of the way, insert new text, and update cursor */ 324 memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0)); 325 if (n > 0) 326 memcpy(&text[cursor], str, n); 327 cursor += n; 328 match(); 329 } 330 331 static size_t 332 nextrune(int inc) 333 { 334 ssize_t n; 335 336 /* return location of next utf8 rune in the given direction (+1 or -1) */ 337 for (n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc) 338 ; 339 return n; 340 } 341 342 static void 343 movewordedge(int dir) 344 { 345 if (dir < 0) { /* move cursor to the start of the word*/ 346 while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)])) 347 cursor = nextrune(-1); 348 while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)])) 349 cursor = nextrune(-1); 350 } else { /* move cursor to the end of the word */ 351 while (text[cursor] && strchr(worddelimiters, text[cursor])) 352 cursor = nextrune(+1); 353 while (text[cursor] && !strchr(worddelimiters, text[cursor])) 354 cursor = nextrune(+1); 355 } 356 } 357 358 static void 359 keypress(XKeyEvent *ev) 360 { 361 char buf[64]; 362 int len; 363 KeySym ksym = NoSymbol; 364 Status status; 365 366 len = XmbLookupString(xic, ev, buf, sizeof buf, &ksym, &status); 367 switch (status) { 368 default: /* XLookupNone, XBufferOverflow */ 369 return; 370 case XLookupChars: /* composed string from input method */ 371 goto insert; 372 case XLookupKeySym: 373 case XLookupBoth: /* a KeySym and a string are returned: use keysym */ 374 break; 375 } 376 377 if (ev->state & ControlMask) { 378 switch(ksym) { 379 case XK_a: ksym = XK_Home; break; 380 case XK_b: ksym = XK_Left; break; 381 case XK_c: ksym = XK_Escape; break; 382 case XK_d: ksym = XK_Delete; break; 383 case XK_e: ksym = XK_End; break; 384 case XK_f: ksym = XK_Right; break; 385 case XK_g: ksym = XK_Escape; break; 386 case XK_h: ksym = XK_BackSpace; break; 387 case XK_i: ksym = XK_Tab; break; 388 case XK_j: /* fallthrough */ 389 case XK_J: /* fallthrough */ 390 case XK_m: /* fallthrough */ 391 case XK_M: ksym = XK_Return; ev->state &= ~ControlMask; break; 392 case XK_n: ksym = XK_Down; break; 393 case XK_p: ksym = XK_Up; break; 394 395 case XK_k: /* delete right */ 396 text[cursor] = '\0'; 397 match(); 398 break; 399 case XK_u: /* delete left */ 400 insert(NULL, 0 - cursor); 401 break; 402 case XK_w: /* delete word */ 403 while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)])) 404 insert(NULL, nextrune(-1) - cursor); 405 while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)])) 406 insert(NULL, nextrune(-1) - cursor); 407 break; 408 case XK_y: /* paste selection */ 409 case XK_Y: 410 XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY, 411 utf8, utf8, win, CurrentTime); 412 return; 413 case XK_Left: 414 case XK_KP_Left: 415 movewordedge(-1); 416 goto draw; 417 case XK_Right: 418 case XK_KP_Right: 419 movewordedge(+1); 420 goto draw; 421 case XK_Return: 422 case XK_KP_Enter: 423 break; 424 case XK_bracketleft: 425 cleanup(); 426 exit(1); 427 default: 428 return; 429 } 430 } else if (ev->state & Mod1Mask) { 431 switch(ksym) { 432 case XK_b: 433 movewordedge(-1); 434 goto draw; 435 case XK_f: 436 movewordedge(+1); 437 goto draw; 438 case XK_g: ksym = XK_Home; break; 439 case XK_G: ksym = XK_End; break; 440 case XK_h: ksym = XK_Up; break; 441 case XK_j: ksym = XK_Next; break; 442 case XK_k: ksym = XK_Prior; break; 443 case XK_l: ksym = XK_Down; break; 444 default: 445 return; 446 } 447 } 448 449 switch(ksym) { 450 default: 451 insert: 452 if (!iscntrl((unsigned char)*buf)) 453 insert(buf, len); 454 break; 455 case XK_Delete: 456 case XK_KP_Delete: 457 if (text[cursor] == '\0') 458 return; 459 cursor = nextrune(+1); 460 /* fallthrough */ 461 case XK_BackSpace: 462 if (cursor == 0) 463 return; 464 insert(NULL, nextrune(-1) - cursor); 465 break; 466 case XK_End: 467 case XK_KP_End: 468 if (text[cursor] != '\0') { 469 cursor = strlen(text); 470 break; 471 } 472 if (next) { 473 /* jump to end of list and position items in reverse */ 474 curr = matchend; 475 calcoffsets(); 476 curr = prev; 477 calcoffsets(); 478 while (next && (curr = curr->right)) 479 calcoffsets(); 480 } 481 sel = matchend; 482 break; 483 case XK_Escape: 484 cleanup(); 485 exit(1); 486 case XK_Home: 487 case XK_KP_Home: 488 if (sel == matches) { 489 cursor = 0; 490 break; 491 } 492 sel = curr = matches; 493 calcoffsets(); 494 break; 495 case XK_Left: 496 case XK_KP_Left: 497 if (cursor > 0 && (!sel || !sel->left || lines > 0)) { 498 cursor = nextrune(-1); 499 break; 500 } 501 if (lines > 0) 502 return; 503 /* fallthrough */ 504 case XK_Up: 505 case XK_KP_Up: 506 if (sel && sel->left && (sel = sel->left)->right == curr) { 507 curr = prev; 508 calcoffsets(); 509 } 510 break; 511 case XK_Next: 512 case XK_KP_Next: 513 if (!next) 514 return; 515 sel = curr = next; 516 calcoffsets(); 517 break; 518 case XK_Prior: 519 case XK_KP_Prior: 520 if (!prev) 521 return; 522 sel = curr = prev; 523 calcoffsets(); 524 break; 525 case XK_Return: 526 case XK_KP_Enter: 527 puts((sel && !(ev->state & ShiftMask)) ? sel->text : text); 528 if (!(ev->state & ControlMask)) { 529 cleanup(); 530 exit(0); 531 } 532 if (sel) 533 sel->out = 1; 534 break; 535 case XK_Right: 536 case XK_KP_Right: 537 if (text[cursor] != '\0') { 538 cursor = nextrune(+1); 539 break; 540 } 541 if (lines > 0) 542 return; 543 /* fallthrough */ 544 case XK_Down: 545 case XK_KP_Down: 546 if (sel && sel->right && (sel = sel->right) == next) { 547 curr = next; 548 calcoffsets(); 549 } 550 break; 551 case XK_Tab: 552 if (!sel) 553 return; 554 cursor = strnlen(sel->text, sizeof text - 1); 555 memcpy(text, sel->text, cursor); 556 text[cursor] = '\0'; 557 match(); 558 break; 559 } 560 561 draw: 562 drawmenu(); 563 } 564 565 static void 566 paste(void) 567 { 568 char *p, *q; 569 int di; 570 unsigned long dl; 571 Atom da; 572 573 /* we have been given the current selection, now insert it into input */ 574 if (XGetWindowProperty(dpy, win, utf8, 0, (sizeof text / 4) + 1, False, 575 utf8, &da, &di, &dl, &dl, (unsigned char **)&p) 576 == Success && p) { 577 insert(p, (q = strchr(p, '\n')) ? q - p : (ssize_t)strlen(p)); 578 XFree(p); 579 } 580 drawmenu(); 581 } 582 583 static void 584 readstdin(void) 585 { 586 char *line = NULL; 587 size_t i, itemsiz = 0, linesiz = 0; 588 ssize_t len; 589 590 /* read each line from stdin and add it to the item list */ 591 for (i = 0; (len = getline(&line, &linesiz, stdin)) != -1; i++) { 592 if (i + 1 >= itemsiz) { 593 itemsiz += 256; 594 if (!(items = realloc(items, itemsiz * sizeof(*items)))) 595 die("cannot realloc %zu bytes:", itemsiz * sizeof(*items)); 596 } 597 if (line[len - 1] == '\n') 598 line[len - 1] = '\0'; 599 if (!(items[i].text = strdup(line))) 600 die("strdup:"); 601 602 items[i].out = 0; 603 } 604 free(line); 605 if (items) 606 items[i].text = NULL; 607 lines = MIN(lines, i); 608 } 609 610 void 611 resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst) 612 { 613 char *sdst = NULL; 614 int *idst = NULL; 615 float *fdst = NULL; 616 sdst = dst; 617 idst = dst; 618 fdst = dst; 619 char fullname[256]; 620 char *type; 621 XrmValue ret; 622 snprintf(fullname, sizeof(fullname), "%s.%s", "dmenu", name); 623 fullname[sizeof(fullname) - 1] = '\0'; 624 XrmGetResource(db, fullname, "*", &type, &ret); 625 if (!(ret.addr == NULL || strncmp("String", type, 64))) 626 { 627 switch (rtype) { 628 case STRING: 629 strcpy(sdst, ret.addr); 630 break; 631 case INTEGER: 632 *idst = strtoul(ret.addr, NULL, 10); 633 break; 634 case FLOAT: 635 *fdst = strtof(ret.addr, NULL); 636 break; 637 } 638 } 639 } 640 641 void 642 load_xresources(void) 643 { 644 Display *display; 645 char *resm; 646 XrmDatabase db; 647 ResourcePref *p; 648 display = XOpenDisplay(NULL); 649 resm = XResourceManagerString(display); 650 if (!resm) 651 return; 652 db = XrmGetStringDatabase(resm); 653 for (p = resources; p < resources + LENGTH(resources); p++) 654 resource_load(db, p->name, p->type, p->dst); 655 XCloseDisplay(display); 656 } 657 658 static void 659 run(void) 660 { 661 XEvent ev; 662 663 while (!XNextEvent(dpy, &ev)) { 664 if (XFilterEvent(&ev, win)) 665 continue; 666 switch(ev.type) { 667 case DestroyNotify: 668 if (ev.xdestroywindow.window != win) 669 break; 670 cleanup(); 671 exit(1); 672 case Expose: 673 if (ev.xexpose.count == 0) 674 drw_map(drw, win, 0, 0, mw, mh); 675 break; 676 case FocusIn: 677 /* regrab focus from parent window */ 678 if (ev.xfocus.window != win) 679 grabfocus(); 680 break; 681 case KeyPress: 682 keypress(&ev.xkey); 683 break; 684 case SelectionNotify: 685 if (ev.xselection.property == utf8) 686 paste(); 687 break; 688 case VisibilityNotify: 689 if (ev.xvisibility.state != VisibilityUnobscured) 690 XRaiseWindow(dpy, win); 691 break; 692 } 693 } 694 } 695 696 static void 697 setup(void) 698 { 699 int x, y, i, j; 700 unsigned int du; 701 XSetWindowAttributes swa; 702 XIM xim; 703 Window w, dw, *dws; 704 XWindowAttributes wa; 705 XClassHint ch = {"dmenu", "dmenu"}; 706 #ifdef XINERAMA 707 XineramaScreenInfo *info; 708 Window pw; 709 int a, di, n, area = 0; 710 #endif 711 /* init appearance */ 712 for (j = 0; j < SchemeLast; j++) 713 scheme[j] = drw_scm_create(drw, colors[j], alphas[j], 2); 714 715 clip = XInternAtom(dpy, "CLIPBOARD", False); 716 utf8 = XInternAtom(dpy, "UTF8_STRING", False); 717 718 /* calculate menu geometry */ 719 bh = drw->fonts->h + 2; 720 lines = MAX(lines, 0); 721 mh = (lines + 1) * bh; 722 promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0; 723 #ifdef XINERAMA 724 i = 0; 725 if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) { 726 XGetInputFocus(dpy, &w, &di); 727 if (mon >= 0 && mon < n) 728 i = mon; 729 else if (w != root && w != PointerRoot && w != None) { 730 /* find top-level window containing current input focus */ 731 do { 732 if (XQueryTree(dpy, (pw = w), &dw, &w, &dws, &du) && dws) 733 XFree(dws); 734 } while (w != root && w != pw); 735 /* find xinerama screen with which the window intersects most */ 736 if (XGetWindowAttributes(dpy, pw, &wa)) 737 for (j = 0; j < n; j++) 738 if ((a = INTERSECT(wa.x, wa.y, wa.width, wa.height, info[j])) > area) { 739 area = a; 740 i = j; 741 } 742 } 743 /* no focused window is on screen, so use pointer location instead */ 744 if (mon < 0 && !area && XQueryPointer(dpy, root, &dw, &dw, &x, &y, &di, &di, &du)) 745 for (i = 0; i < n; i++) 746 if (INTERSECT(x, y, 1, 1, info[i]) != 0) 747 break; 748 749 if (centered) { 750 mw = MIN(MAX(max_textw() + promptw, min_width), info[i].width); 751 x = info[i].x_org + ((info[i].width - mw) / 2); 752 y = info[i].y_org + ((info[i].height - mh) / 2); 753 } else { 754 x = info[i].x_org; 755 y = info[i].y_org + (topbar ? 0 : info[i].height - mh); 756 mw = info[i].width; 757 } 758 759 XFree(info); 760 } else 761 #endif 762 { 763 if (!XGetWindowAttributes(dpy, parentwin, &wa)) 764 die("could not get embedding window attributes: 0x%lx", 765 parentwin); 766 767 if (centered) { 768 mw = MIN(MAX(max_textw() + promptw, min_width), wa.width); 769 x = (wa.width - mw) / 2; 770 y = (wa.height - mh) / 2; 771 } else { 772 x = 0; 773 y = topbar ? 0 : wa.height - mh; 774 mw = wa.width; 775 } 776 } 777 promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0; 778 inputw = mw / 3; /* input width: ~33% of monitor width */ 779 match(); 780 781 /* create menu window */ 782 swa.override_redirect = True; 783 swa.background_pixel = 0; 784 swa.border_pixel = 0; 785 swa.colormap = cmap; 786 swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask; 787 win = XCreateWindow(dpy, root, x, y/2, mw, mh, border_width, 788 depth, CopyFromParent, visual, 789 CWOverrideRedirect | CWBackPixel | CWBorderPixel | CWColormap | CWEventMask, &swa); 790 if (border_width) 791 XSetWindowBorder(dpy, win, scheme[SchemeOut][ColFg].pixel); 792 XSetClassHint(dpy, win, &ch); 793 794 795 /* input methods */ 796 if ((xim = XOpenIM(dpy, NULL, NULL, NULL)) == NULL) 797 die("XOpenIM failed: could not open input device"); 798 799 xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing, 800 XNClientWindow, win, XNFocusWindow, win, NULL); 801 802 XMapRaised(dpy, win); 803 if (embed) { 804 XReparentWindow(dpy, win, parentwin, x, y); 805 XSelectInput(dpy, parentwin, FocusChangeMask | SubstructureNotifyMask); 806 if (XQueryTree(dpy, parentwin, &dw, &w, &dws, &du) && dws) { 807 for (i = 0; i < du && dws[i] != win; ++i) 808 XSelectInput(dpy, dws[i], FocusChangeMask); 809 XFree(dws); 810 } 811 grabfocus(); 812 } 813 drw_resize(drw, mw, mh); 814 drawmenu(); 815 } 816 817 static void 818 usage(void) 819 { 820 die("usage: dmenu [-bfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n" 821 " [-nb color] [-nf color] [-sb color] [-sf color] [-w windowid]"); 822 } 823 824 int 825 main(int argc, char *argv[]) 826 { 827 XWindowAttributes wa; 828 int i, fast = 0; 829 830 XrmInitialize(); 831 load_xresources(); 832 833 for (i = 1; i < argc; i++) 834 /* these options take no arguments */ 835 if (!strcmp(argv[i], "-v")) { /* prints version information */ 836 puts("dmenu-"VERSION); 837 exit(0); 838 } else if (!strcmp(argv[i], "-b")) /* appears at the bottom of the screen */ 839 topbar = 0; 840 else if (!strcmp(argv[i], "-f")) /* grabs keyboard before reading stdin */ 841 fast = 1; 842 else if (!strcmp(argv[i], "-c")) /* centers dmenu on screen */ 843 centered = 1; 844 else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */ 845 fstrncmp = strncasecmp; 846 fstrstr = cistrstr; 847 } else if (i + 1 == argc) 848 usage(); 849 /* these options take one argument */ 850 else if (!strcmp(argv[i], "-l")) /* number of lines in vertical list */ 851 lines = atoi(argv[++i]); 852 else if (!strcmp(argv[i], "-m")) 853 mon = atoi(argv[++i]); 854 else if (!strcmp(argv[i], "-p")) /* adds prompt to left of input field */ 855 prompt = argv[++i]; 856 else if (!strcmp(argv[i], "-fn")) /* font or font set */ 857 fonts[0] = argv[++i]; 858 else if (!strcmp(argv[i], "-nb")) /* normal background color */ 859 colors[SchemeNorm][ColBg] = argv[++i]; 860 else if (!strcmp(argv[i], "-nf")) /* normal foreground color */ 861 colors[SchemeNorm][ColFg] = argv[++i]; 862 else if (!strcmp(argv[i], "-sb")) /* selected background color */ 863 colors[SchemeSel][ColBg] = argv[++i]; 864 else if (!strcmp(argv[i], "-sf")) /* selected foreground color */ 865 colors[SchemeSel][ColFg] = argv[++i]; 866 else if (!strcmp(argv[i], "-w")) /* embedding window id */ 867 embed = argv[++i]; 868 else if (!strcmp(argv[i], "-bw")) 869 border_width = atoi(argv[++i]); /* border width */ 870 else 871 usage(); 872 873 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale()) 874 fputs("warning: no locale support\n", stderr); 875 if (!(dpy = XOpenDisplay(NULL))) 876 die("cannot open display"); 877 screen = DefaultScreen(dpy); 878 root = RootWindow(dpy, screen); 879 if (!embed || !(parentwin = strtol(embed, NULL, 0))) 880 parentwin = root; 881 if (!XGetWindowAttributes(dpy, parentwin, &wa)) 882 die("could not get embedding window attributes: 0x%lx", 883 parentwin); 884 xinitvisual(); 885 drw = drw_create(dpy, screen, root, wa.width, wa.height, visual, depth, cmap); 886 if (!drw_fontset_create(drw, fonts, LENGTH(fonts))) 887 die("no fonts could be loaded."); 888 lrpad = drw->fonts->h; 889 890 #ifdef __OpenBSD__ 891 if (pledge("stdio rpath", NULL) == -1) 892 die("pledge"); 893 #endif 894 895 if (fast && !isatty(0)) { 896 grabkeyboard(); 897 readstdin(); 898 } else { 899 readstdin(); 900 grabkeyboard(); 901 } 902 setup(); 903 run(); 904 905 return 1; /* unreachable */ 906 } 907 908 void 909 xinitvisual() 910 { 911 XVisualInfo *infos; 912 XRenderPictFormat *fmt; 913 int nitems; 914 int i; 915 916 XVisualInfo tpl = { 917 .screen = screen, 918 .depth = 32, 919 .class = TrueColor 920 }; 921 long masks = VisualScreenMask | VisualDepthMask | VisualClassMask; 922 923 infos = XGetVisualInfo(dpy, masks, &tpl, &nitems); 924 visual = NULL; 925 for(i = 0; i < nitems; i ++) { 926 fmt = XRenderFindVisualFormat(dpy, infos[i].visual); 927 if (fmt->type == PictTypeDirect && fmt->direct.alphaMask) { 928 visual = infos[i].visual; 929 depth = infos[i].depth; 930 cmap = XCreateColormap(dpy, root, visual, AllocNone); 931 useargb = 1; 932 break; 933 } 934 } 935 936 XFree(infos); 937 938 if (! visual) { 939 visual = DefaultVisual(dpy, screen); 940 depth = DefaultDepth(dpy, screen); 941 cmap = DefaultColormap(dpy, screen); 942 } 943 }