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local/src/dmenu/dmenu.c
1 /* See LICENSE file for copyright and license details. */
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20
21
22 /* macros */
23
24 * MAX(0, MIN((y)+(h),(r).y_org+(r).height) - MAX((y),(r).y_org)))
25
26
27
28 /* enums */
29 enum { SchemeNorm, SchemeSel, SchemeOut, SchemeLast }; /* color schemes */
30
31 struct item {
32 char *text;
33 struct item *left, *right;
34 int out;
35 };
36
37
38
39
40 static char numbers[NUMBERSBUFSIZE] = "";
41 static void recalculatenumbers();
42
43
44 static void buttonpress(XEvent *e);
45
46
47 static char text[BUFSIZ] = "";
48 static char *embed;
49 static int bh, mw, mh;
50 static int inputw = 0, promptw;
51 static int lrpad; /* sum of left and right padding */
52 static size_t cursor;
53 static struct item *items = NULL;
54 static struct item *matches, *matchend;
55 static struct item *prev, *curr, *next, *sel;
56 static int mon = -1, screen;
57
58 static Atom clip, utf8;
59 static Display *dpy;
60 static Window root, parentwin, win;
61 static XIC xic;
62
63 static Drw *drw;
64 static Clr *scheme[SchemeLast];
65
66
67
68 static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
69 static char *(*fstrstr)(const char *, const char *) = strstr;
70
71 static void
72 appenditem(struct item *item, struct item **list, struct item **last)
73 {
74 if (*last)
75 (*last)->right = item;
76 else
77 *list = item;
78
79 item->left = *last;
80 item->right = NULL;
81 *last = item;
82 }
83
84 static void
85 calcoffsets(void)
86 {
87 int i, n;
88
89 if (lines > 0)
90 n = lines * bh;
91 else
92 n = mw - (promptw + inputw + TEXTW("<") + TEXTW(">"));
93 /* calculate which items will begin the next page and previous page */
94 for (i = 0, next = curr; next; next = next->right)
95 if ((i += (lines > 0) ? bh : MIN(TEXTW(next->text), n)) > n)
96 break;
97 for (i = 0, prev = curr; prev && prev->left; prev = prev->left)
98 if ((i += (lines > 0) ? bh : MIN(TEXTW(prev->left->text), n)) > n)
99 break;
100 }
101
102 static void
103 cleanup(void)
104 {
105 size_t i;
106
107 XUngrabKey(dpy, AnyKey, AnyModifier, root);
108 for (i = 0; i < SchemeLast; i++)
109 free(scheme[i]);
110 drw_free(drw);
111 XSync(dpy, False);
112 XCloseDisplay(dpy);
113 }
114
115 static char *
116 cistrstr(const char *s, const char *sub)
117 {
118 size_t len;
119
120 for (len = strlen(sub); *s; s++)
121 if (!strncasecmp(s, sub, len))
122 return (char *)s;
123 return NULL;
124 }
125
126 static int
127 drawitem(struct item *item, int x, int y, int w)
128 {
129 if (item == sel)
130 drw_setscheme(drw, scheme[SchemeSel]);
131 else if (item->out)
132 drw_setscheme(drw, scheme[SchemeOut]);
133 else
134 drw_setscheme(drw, scheme[SchemeNorm]);
135
136 return drw_text(drw, x, y, w, bh, lrpad / 2, item->text, 0);
137 }
138
139 static void
140 drawmenu(void)
141 {
142 unsigned int curpos;
143 struct item *item;
144 int x = 0, y = 0, w;
145
146 drw_setscheme(drw, scheme[SchemeNorm]);
147 drw_rect(drw, 0, 0, mw, mh, 1, 1);
148
149 if (prompt && *prompt) {
150 drw_setscheme(drw, scheme[SchemeSel]);
151 x = drw_text(drw, x, 0, promptw, bh, lrpad / 2, prompt, 0);
152 }
153 /* draw input field */
154 w = (lines > 0 || !matches) ? mw - x : inputw;
155 drw_setscheme(drw, scheme[SchemeNorm]);
156 drw_text(drw, x, 0, w, bh, lrpad / 2, text, 0);
157
158 curpos = TEXTW(text) - TEXTW(&text[cursor]);
159 if ((curpos += lrpad / 2 - 1) < w) {
160 drw_setscheme(drw, scheme[SchemeNorm]);
161 drw_rect(drw, x + curpos, 2, 2, bh - 4, 1, 0);
162 }
163
164
165 recalculatenumbers();
166
167 if (lines > 0) {
168 /* draw vertical list */
169 for (item = curr; item != next; item = item->right)
170 drawitem(item, x, y += bh, mw - x);
171 } else if (matches) {
172 /* draw horizontal list */
173 x += inputw;
174 w = TEXTW("<");
175 if (curr->left) {
176 drw_setscheme(drw, scheme[SchemeNorm]);
177 drw_text(drw, x, 0, w, bh, lrpad / 2, "<", 0);
178 }
179 x += w;
180 for (item = curr; item != next; item = item->right)
181
182 x = drawitem(item, x, 0, MIN(TEXTW(item->text), mw - x - TEXTW(">") - TEXTW(numbers)));
183
184 x = drawitem(item, x, 0, MIN(TEXTW(item->text), mw - x - TEXTW(">")));
185
186 if (next) {
187 w = TEXTW(">");
188 drw_setscheme(drw, scheme[SchemeNorm]);
189
190 drw_text(drw, mw - w - TEXTW(numbers), 0, w, bh, lrpad / 2, ">", 0);
191
192 drw_text(drw, mw - w, 0, w, bh, lrpad / 2, ">", 0);
193
194 }
195 }
196
197 drw_setscheme(drw, scheme[SchemeNorm]);
198 drw_text(drw, mw - TEXTW(numbers), 0, TEXTW(numbers), bh, lrpad / 2, numbers, 0);
199
200 drw_map(drw, win, 0, 0, mw, mh);
201 }
202
203 static void
204 grabfocus(void)
205 {
206 struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 };
207 Window focuswin;
208 int i, revertwin;
209
210 for (i = 0; i < 100; ++i) {
211 XGetInputFocus(dpy, &focuswin, &revertwin);
212 if (focuswin == win)
213 return;
214 XSetInputFocus(dpy, win, RevertToParent, CurrentTime);
215 nanosleep(&ts, NULL);
216 }
217 die("cannot grab focus");
218 }
219
220 static void
221 grabkeyboard(void)
222 {
223 struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 };
224 int i;
225
226 if (embed)
227 return;
228 /* try to grab keyboard, we may have to wait for another process to ungrab */
229 for (i = 0; i < 1000; i++) {
230 if (XGrabKeyboard(dpy, DefaultRootWindow(dpy), True, GrabModeAsync,
231 GrabModeAsync, CurrentTime) == GrabSuccess)
232 return;
233 nanosleep(&ts, NULL);
234 }
235 die("cannot grab keyboard");
236 }
237
238 static void
239 match(void)
240 {
241 static char **tokv = NULL;
242 static int tokn = 0;
243
244 char buf[sizeof text], *s;
245 int i, tokc = 0;
246 size_t len, textsize;
247 struct item *item, *lprefix, *lsubstr, *prefixend, *substrend;
248
249 strcpy(buf, text);
250 /* separate input text into tokens to be matched individually */
251 for (s = strtok(buf, " "); s; tokv[tokc - 1] = s, s = strtok(NULL, " "))
252 if (++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
253 die("cannot realloc %u bytes:", tokn * sizeof *tokv);
254 len = tokc ? strlen(tokv[0]) : 0;
255
256 matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
257 textsize = strlen(text) + 1;
258 for (item = items; item && item->text; item++) {
259 for (i = 0; i < tokc; i++)
260 if (!fstrstr(item->text, tokv[i]))
261 break;
262 if (i != tokc) /* not all tokens match */
263 continue;
264 /* exact matches go first, then prefixes, then substrings */
265 if (!tokc || !fstrncmp(text, item->text, textsize))
266 appenditem(item, &matches, &matchend);
267 else if (!fstrncmp(tokv[0], item->text, len))
268 appenditem(item, &lprefix, &prefixend);
269 else
270 appenditem(item, &lsubstr, &substrend);
271 }
272 if (lprefix) {
273 if (matches) {
274 matchend->right = lprefix;
275 lprefix->left = matchend;
276 } else
277 matches = lprefix;
278 matchend = prefixend;
279 }
280 if (lsubstr) {
281 if (matches) {
282 matchend->right = lsubstr;
283 lsubstr->left = matchend;
284 } else
285 matches = lsubstr;
286 matchend = substrend;
287 }
288 curr = sel = matches;
289 calcoffsets();
290 }
291
292 static void
293 insert(const char *str, ssize_t n)
294 {
295 if (strlen(text) + n > sizeof text - 1)
296 return;
297 /* move existing text out of the way, insert new text, and update cursor */
298 memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0));
299 if (n > 0)
300 memcpy(&text[cursor], str, n);
301 cursor += n;
302 match();
303 }
304
305 static size_t
306 nextrune(int inc)
307 {
308 ssize_t n;
309
310 /* return location of next utf8 rune in the given direction (+1 or -1) */
311 for (n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc)
312 ;
313 return n;
314 }
315
316 static void
317 movewordedge(int dir)
318 {
319 if (dir < 0) { /* move cursor to the start of the word*/
320 while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)]))
321 cursor = nextrune(-1);
322 while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)]))
323 cursor = nextrune(-1);
324 } else { /* move cursor to the end of the word */
325 while (text[cursor] && strchr(worddelimiters, text[cursor]))
326 cursor = nextrune(+1);
327 while (text[cursor] && !strchr(worddelimiters, text[cursor]))
328 cursor = nextrune(+1);
329 }
330 }
331
332 static void
333 keypress(XKeyEvent *ev)
334 {
335 char buf[32];
336 int len;
337 KeySym ksym;
338 Status status;
339
340 len = XmbLookupString(xic, ev, buf, sizeof buf, &ksym, &status);
341 switch (status) {
342 default: /* XLookupNone, XBufferOverflow */
343 return;
344 case XLookupChars:
345 goto insert;
346 case XLookupKeySym:
347 case XLookupBoth:
348 break;
349 }
350
351 if (ev->state & ControlMask) {
352 switch(ksym) {
353 case XK_a: ksym = XK_Home; break;
354 case XK_b: ksym = XK_Left; break;
355 case XK_c: ksym = XK_Escape; break;
356 case XK_d: ksym = XK_Delete; break;
357 case XK_e: ksym = XK_End; break;
358 case XK_f: ksym = XK_Right; break;
359 case XK_g: ksym = XK_Escape; break;
360 case XK_h: ksym = XK_BackSpace; break;
361 case XK_i: ksym = XK_Tab; break;
362 case XK_j: /* fallthrough */
363 case XK_J: /* fallthrough */
364 case XK_m: /* fallthrough */
365 case XK_M: ksym = XK_Return; ev->state &= ~ControlMask; break;
366 case XK_n: ksym = XK_Down; break;
367 case XK_p: ksym = XK_Up; break;
368
369 case XK_k: /* delete right */
370 text[cursor] = '\0';
371 match();
372 break;
373 case XK_u: /* delete left */
374 insert(NULL, 0 - cursor);
375 break;
376 case XK_w: /* delete word */
377 while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)]))
378 insert(NULL, nextrune(-1) - cursor);
379 while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)]))
380 insert(NULL, nextrune(-1) - cursor);
381 break;
382 case XK_y: /* paste selection */
383 case XK_Y:
384 XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY,
385 utf8, utf8, win, CurrentTime);
386 return;
387 case XK_Left:
388 movewordedge(-1);
389 goto draw;
390 case XK_Right:
391 movewordedge(+1);
392 goto draw;
393 case XK_Return:
394 case XK_KP_Enter:
395 break;
396 case XK_bracketleft:
397 cleanup();
398 exit(1);
399 default:
400 return;
401 }
402 } else if (ev->state & Mod1Mask) {
403 switch(ksym) {
404 case XK_b:
405 movewordedge(-1);
406 goto draw;
407 case XK_f:
408 movewordedge(+1);
409 goto draw;
410 case XK_g: ksym = XK_Home; break;
411 case XK_G: ksym = XK_End; break;
412 case XK_h: ksym = XK_Up; break;
413 case XK_j: ksym = XK_Next; break;
414 case XK_k: ksym = XK_Prior; break;
415 case XK_l: ksym = XK_Down; break;
416 default:
417 return;
418 }
419 }
420
421 switch(ksym) {
422 default:
423 insert:
424 if (!iscntrl(*buf))
425 insert(buf, len);
426 break;
427 case XK_Delete:
428 if (text[cursor] == '\0')
429 return;
430 cursor = nextrune(+1);
431 /* fallthrough */
432 case XK_BackSpace:
433 if (cursor == 0)
434 return;
435 insert(NULL, nextrune(-1) - cursor);
436 break;
437 case XK_End:
438 if (text[cursor] != '\0') {
439 cursor = strlen(text);
440 break;
441 }
442 if (next) {
443 /* jump to end of list and position items in reverse */
444 curr = matchend;
445 calcoffsets();
446 curr = prev;
447 calcoffsets();
448 while (next && (curr = curr->right))
449 calcoffsets();
450 }
451 sel = matchend;
452 break;
453 case XK_Escape:
454 cleanup();
455 exit(1);
456 case XK_Home:
457 if (sel == matches) {
458 cursor = 0;
459 break;
460 }
461 sel = curr = matches;
462 calcoffsets();
463 break;
464 case XK_Left:
465 if (cursor > 0 && (!sel || !sel->left || lines > 0)) {
466 cursor = nextrune(-1);
467 break;
468 }
469 if (lines > 0)
470 return;
471 /* fallthrough */
472 case XK_Up:
473 if (sel && sel->left && (sel = sel->left)->right == curr) {
474 curr = prev;
475 calcoffsets();
476 }
477 break;
478 case XK_Next:
479 if (!next)
480 return;
481 sel = curr = next;
482 calcoffsets();
483 break;
484 case XK_Prior:
485 if (!prev)
486 return;
487 sel = curr = prev;
488 calcoffsets();
489 break;
490 case XK_Return:
491 case XK_KP_Enter:
492 puts((sel && !(ev->state & ShiftMask)) ? sel->text : text);
493 if (!(ev->state & ControlMask)) {
494 cleanup();
495 exit(0);
496 }
497 if (sel)
498 sel->out = 1;
499 break;
500 case XK_Right:
501 if (text[cursor] != '\0') {
502 cursor = nextrune(+1);
503 break;
504 }
505 if (lines > 0)
506 return;
507 /* fallthrough */
508 case XK_Down:
509 if (sel && sel->right && (sel = sel->right) == next) {
510 curr = next;
511 calcoffsets();
512 }
513 break;
514 case XK_Tab:
515 if (!sel)
516 return;
517 strncpy(text, sel->text, sizeof text - 1);
518 text[sizeof text - 1] = '\0';
519 cursor = strlen(text);
520 match();
521 break;
522 }
523
524 draw:
525 drawmenu();
526 }
527
528 static void
529 paste(void)
530 {
531 char *p, *q;
532 int di;
533 unsigned long dl;
534 Atom da;
535
536 /* we have been given the current selection, now insert it into input */
537 if (XGetWindowProperty(dpy, win, utf8, 0, (sizeof text / 4) + 1, False,
538 utf8, &da, &di, &dl, &dl, (unsigned char **)&p)
539 == Success && p) {
540 insert(p, (q = strchr(p, '\n')) ? q - p : (ssize_t)strlen(p));
541 XFree(p);
542 }
543 drawmenu();
544 }
545
546 static void
547 readstdin(void)
548 {
549 char buf[sizeof text], *p;
550 size_t i, imax = 0, size = 0;
551 unsigned int tmpmax = 0;
552
553 /* read each line from stdin and add it to the item list */
554 for (i = 0; fgets(buf, sizeof buf, stdin); i++) {
555 if (i + 1 >= size / sizeof *items)
556 if (!(items = realloc(items, (size += BUFSIZ))))
557 die("cannot realloc %u bytes:", size);
558 if ((p = strchr(buf, '\n')))
559 *p = '\0';
560 if (!(items[i].text = strdup(buf)))
561 die("cannot strdup %u bytes:", strlen(buf) + 1);
562 items[i].out = 0;
563 drw_font_getexts(drw->fonts, buf, strlen(buf), &tmpmax, NULL);
564 if (tmpmax > inputw) {
565 inputw = tmpmax;
566 imax = i;
567 }
568 }
569 if (items)
570 items[i].text = NULL;
571 inputw = items ? TEXTW(items[imax].text) : 0;
572 lines = MIN(lines, i);
573 }
574
575 static void
576 run(void)
577 {
578 XEvent ev;
579
580 while (!XNextEvent(dpy, &ev)) {
581 if (XFilterEvent(&ev, win))
582 continue;
583 switch(ev.type) {
584 case DestroyNotify:
585 if (ev.xdestroywindow.window != win)
586 break;
587 cleanup();
588 exit(1);
589
590 case ButtonPress:
591 buttonpress(&ev);
592 break;
593
594 case Expose:
595 if (ev.xexpose.count == 0)
596 drw_map(drw, win, 0, 0, mw, mh);
597 break;
598 case FocusIn:
599 /* regrab focus from parent window */
600 if (ev.xfocus.window != win)
601 grabfocus();
602 break;
603 case KeyPress:
604 keypress(&ev.xkey);
605 break;
606 case SelectionNotify:
607 if (ev.xselection.property == utf8)
608 paste();
609 break;
610 case VisibilityNotify:
611 if (ev.xvisibility.state != VisibilityUnobscured)
612 XRaiseWindow(dpy, win);
613 break;
614 }
615 }
616 }
617
618 static void
619 setup(void)
620 {
621 int x, y, i, j;
622 unsigned int du;
623 XSetWindowAttributes swa;
624 XIM xim;
625 Window w, dw, *dws;
626 XWindowAttributes wa;
627 XClassHint ch = {"dmenu", "dmenu"};
628
629 XineramaScreenInfo *info;
630 Window pw;
631 int a, di, n, area = 0;
632
633 /* init appearance */
634 for (j = 0; j < SchemeLast; j++)
635 scheme[j] = drw_scm_create(drw, colors[j], 2);
636
637 clip = XInternAtom(dpy, "CLIPBOARD", False);
638 utf8 = XInternAtom(dpy, "UTF8_STRING", False);
639
640 /* calculate menu geometry */
641
642 bh = BARHEIGHT;
643
644 bh = drw->fonts->h + 2;
645
646 lines = MAX(lines, 0);
647 mh = (lines + 1) * bh;
648
649 i = 0;
650 if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) {
651 XGetInputFocus(dpy, &w, &di);
652 if (mon >= 0 && mon < n)
653 i = mon;
654 else if (w != root && w != PointerRoot && w != None) {
655 /* find top-level window containing current input focus */
656 do {
657 if (XQueryTree(dpy, (pw = w), &dw, &w, &dws, &du) && dws)
658 XFree(dws);
659 } while (w != root && w != pw);
660 /* find xinerama screen with which the window intersects most */
661 if (XGetWindowAttributes(dpy, pw, &wa))
662 for (j = 0; j < n; j++)
663 if ((a = INTERSECT(wa.x, wa.y, wa.width, wa.height, info[j])) > area) {
664 area = a;
665 i = j;
666 }
667 }
668 /* no focused window is on screen, so use pointer location instead */
669 if (mon < 0 && !area && XQueryPointer(dpy, root, &dw, &dw, &x, &y, &di, &di, &du))
670 for (i = 0; i < n; i++)
671 if (INTERSECT(x, y, 1, 1, info[i]))
672 break;
673
674 x = info[i].x_org;
675 y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
676 mw = info[i].width;
677 XFree(info);
678 } else
679
680 {
681 if (!XGetWindowAttributes(dpy, parentwin, &wa))
682 die("could not get embedding window attributes: 0x%lx",
683 parentwin);
684 x = 0;
685 y = topbar ? 0 : wa.height - mh;
686 mw = wa.width;
687 }
688 promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
689 inputw = MIN(inputw, mw/3);
690 match();
691
692 /* create menu window */
693 swa.override_redirect = True;
694 swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
695 swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
696
697 swa.event_mask |= ButtonPressMask;
698
699 win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0,
700 CopyFromParent, CopyFromParent, CopyFromParent,
701 CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
702 XSetClassHint(dpy, win, &ch);
703
704
705 /* input methods */
706 if ((xim = XOpenIM(dpy, NULL, NULL, NULL)) == NULL)
707 die("XOpenIM failed: could not open input device");
708
709 xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
710 XNClientWindow, win, XNFocusWindow, win, NULL);
711
712 XMapRaised(dpy, win);
713 if (embed) {
714 XSelectInput(dpy, parentwin, FocusChangeMask | SubstructureNotifyMask);
715 if (XQueryTree(dpy, parentwin, &dw, &w, &dws, &du) && dws) {
716 for (i = 0; i < du && dws[i] != win; ++i)
717 XSelectInput(dpy, dws[i], FocusChangeMask);
718 XFree(dws);
719 }
720 grabfocus();
721 }
722 drw_resize(drw, mw, mh);
723 drawmenu();
724 }
725
726 static void
727 usage(void)
728 {
729 fputs("usage: dmenu [-bfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
730 " [-nb color] [-nf color] [-sb color] [-sf color] [-w windowid]\n", stderr);
731 exit(1);
732 }
733
734 int
735 main(int argc, char *argv[])
736 {
737 XWindowAttributes wa;
738 int i, fast = 0;
739
740 for (i = 1; i < argc; i++)
741 /* these options take no arguments */
742 if (!strcmp(argv[i], "-v")) { /* prints version information */
743 puts("dmenu-"VERSION);
744 exit(0);
745 } else if (!strcmp(argv[i], "-b")) /* appears at the bottom of the screen */
746 topbar = 0;
747 else if (!strcmp(argv[i], "-f")) /* grabs keyboard before reading stdin */
748 fast = 1;
749 else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
750 fstrncmp = strncasecmp;
751 fstrstr = cistrstr;
752 } else if (i + 1 == argc)
753 usage();
754 /* these options take one argument */
755 else if (!strcmp(argv[i], "-l")) /* number of lines in vertical list */
756 lines = atoi(argv[++i]);
757 else if (!strcmp(argv[i], "-m"))
758 mon = atoi(argv[++i]);
759 else if (!strcmp(argv[i], "-p")) /* adds prompt to left of input field */
760 prompt = argv[++i];
761 else if (!strcmp(argv[i], "-fn")) /* font or font set */
762 fonts[0] = argv[++i];
763 else if (!strcmp(argv[i], "-nb")) /* normal background color */
764 colors[SchemeNorm][ColBg] = argv[++i];
765 else if (!strcmp(argv[i], "-nf")) /* normal foreground color */
766 colors[SchemeNorm][ColFg] = argv[++i];
767 else if (!strcmp(argv[i], "-sb")) /* selected background color */
768 colors[SchemeSel][ColBg] = argv[++i];
769 else if (!strcmp(argv[i], "-sf")) /* selected foreground color */
770 colors[SchemeSel][ColFg] = argv[++i];
771 else if (!strcmp(argv[i], "-w")) /* embedding window id */
772 embed = argv[++i];
773 else
774 usage();
775
776 if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
777 fputs("warning: no locale support\n", stderr);
778 if (!(dpy = XOpenDisplay(NULL)))
779 die("cannot open display");
780 screen = DefaultScreen(dpy);
781 root = RootWindow(dpy, screen);
782 if (!embed || !(parentwin = strtol(embed, NULL, 0)))
783 parentwin = root;
784 if (!XGetWindowAttributes(dpy, parentwin, &wa))
785 die("could not get embedding window attributes: 0x%lx",
786 parentwin);
787 drw = drw_create(dpy, screen, root, wa.width, wa.height);
788 if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
789 die("no fonts could be loaded.");
790 lrpad = drw->fonts->h;
791
792
793 if (pledge("stdio rpath", NULL) == -1)
794 die("pledge");
795
796
797 if (fast && !isatty(0)) {
798 grabkeyboard();
799 readstdin();
800 } else {
801 readstdin();
802 grabkeyboard();
803 }
804 setup();
805 run();
806
807 return 1; /* unreachable */
808 }
809
810
811 static void
812 recalculatenumbers()
813 {
814 unsigned int numer = 0, denom = 0;
815 struct item *item;
816 if (matchend) {
817 numer++;
818 for (item = matchend; item && item->left; item = item->left)
819 numer++;
820 }
821 for (item = items; item && item->text; item++)
822 denom++;
823 snprintf(numbers, NUMBERSBUFSIZE, "%d/%d", numer, denom);
824 }
825
826
827 static void
828 buttonpress(XEvent *e)
829 {
830 struct item *item;
831 XButtonPressedEvent *ev = &e->xbutton;
832 int x = 0, y = 0, h = bh, w;
833 static int xx = 0, yy = 0;
834
835 if (ev->window != win)
836 return;
837
838 if (prompt && *prompt)
839 x += promptw;
840
841 /* input field */
842 w = (lines > 0 || !matches) ? mw - x : inputw;
843
844 /* middle-mouse click: paste selection */
845 if (ev->button == Button2) {
846 XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY, utf8, utf8, win, CurrentTime);
847 drawmenu();
848 return;
849 }
850 /* scroll up */
851 if (ev->button == Button4) {
852 if (sel && sel->left && (sel = sel->left)->right == curr) curr = prev;
853 calcoffsets();
854 drawmenu();
855 return;
856 }
857 /* scroll down */
858 if (ev->button == Button5) {
859 if (sel && sel->right && (sel = sel->right) == next) curr = next;
860 calcoffsets();
861 drawmenu();
862 return;
863 }
864 if (lines > 0) {
865 /* vertical list: left-click on item */
866 w = mw - x;
867 for (item = curr; item != next; item = item->right) {
868 y += h;
869 if (ev->y >= y && ev->y <= (y + h)) {
870 if (ev->button == Button1) {
871 if (ev->x == xx && ev->y == yy) {
872 puts(item->text);
873 exit(0);
874 }
875 xx = ev->x;
876 yy = ev->y;
877 sel = item;
878 drawmenu();
879 }
880 if (ev->button == Button3) {
881 item->out = 1;
882 drawmenu();
883 puts(item->text);
884 }
885 return;
886 }
887 }
888 } else if (matches) {
889 /* horizontal list: left-click on item */
890 for (item = curr; item != next; item = item->right) {
891 x += w;
892 w = MIN(TEXTW(item->text), mw - x - TEXTW(">"));
893 if (ev->x >= x && ev->x <= x + w) {
894 if (ev->button == Button1) {
895 if (ev->x == xx && ev->y == yy) {
896 puts(item->text);
897 exit(0);
898 }
899 xx = ev->x;
900 yy = ev->y;
901 sel = item;
902 drawmenu();
903 }
904 if (ev->button == Button3) {
905 item->out = 1;
906 drawmenu();
907 puts(item->text);
908 }
909 return;
910 }
911 }
912 }
913 }
914
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