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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
45 static void buttonpress(XEvent *e);
46
47
48 static char text[BUFSIZ] = "";
49 static char *embed;
50 static int bh, mw, mh;
51 static int inputw = 0, promptw;
52 static int lrpad; /* sum of left and right padding */
53 static size_t cursor;
54 static struct item *items = NULL;
55 static struct item *matches, *matchend;
56 static struct item *prev, *curr, *next, *sel;
57 static int mon = -1, screen;
58
59 static Atom clip, utf8;
60 static Display *dpy;
61 static Window root, parentwin, win;
62 static XIC xic;
63
64 static Drw *drw;
65 static Clr *scheme[SchemeLast];
66
67
68
69 static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
70 static char *(*fstrstr)(const char *, const char *) = strstr;
71
72 static void
73 appenditem(struct item *item, struct item **list, struct item **last)
74 {
75 if (*last)
76 (*last)->right = item;
77 else
78 *list = item;
79
80 item->left = *last;
81 item->right = NULL;
82 *last = item;
83 }
84
85 static void
86 calcoffsets(void)
87 {
88 int i, n;
89
90 if (lines > 0)
91 n = lines * bh;
92 else
93 n = mw - (promptw + inputw + TEXTW("<") + TEXTW(">"));
94 /* calculate which items will begin the next page and previous page */
95 for (i = 0, next = curr; next; next = next->right)
96 if ((i += (lines > 0) ? bh : MIN(TEXTW(next->text), n)) > n)
97 break;
98 for (i = 0, prev = curr; prev && prev->left; prev = prev->left)
99 if ((i += (lines > 0) ? bh : MIN(TEXTW(prev->left->text), n)) > n)
100 break;
101 }
102
103 static void
104 cleanup(void)
105 {
106 size_t i;
107
108 XUngrabKey(dpy, AnyKey, AnyModifier, root);
109 for (i = 0; i < SchemeLast; i++)
110 free(scheme[i]);
111 drw_free(drw);
112 XSync(dpy, False);
113 XCloseDisplay(dpy);
114 }
115
116 static char *
117 cistrstr(const char *s, const char *sub)
118 {
119 size_t len;
120
121 for (len = strlen(sub); *s; s++)
122 if (!strncasecmp(s, sub, len))
123 return (char *)s;
124 return NULL;
125 }
126
127 static int
128 drawitem(struct item *item, int x, int y, int w)
129 {
130 if (item == sel)
131 drw_setscheme(drw, scheme[SchemeSel]);
132 else if (item->out)
133 drw_setscheme(drw, scheme[SchemeOut]);
134 else
135 drw_setscheme(drw, scheme[SchemeNorm]);
136
137 return drw_text(drw, x, y, w, bh, lrpad / 2, item->text, 0);
138 }
139
140 static void
141 drawmenu(void)
142 {
143 unsigned int curpos;
144 struct item *item;
145 int x = 0, y = 0, w;
146
147 drw_setscheme(drw, scheme[SchemeNorm]);
148 drw_rect(drw, 0, 0, mw, mh, 1, 1);
149
150 if (prompt && *prompt) {
151 drw_setscheme(drw, scheme[SchemeSel]);
152 x = drw_text(drw, x, 0, promptw, bh, lrpad / 2, prompt, 0);
153 }
154 /* draw input field */
155 w = (lines > 0 || !matches) ? mw - x : inputw;
156 drw_setscheme(drw, scheme[SchemeNorm]);
157 drw_text(drw, x, 0, w, bh, lrpad / 2, text, 0);
158
159 curpos = TEXTW(text) - TEXTW(&text[cursor]);
160 if ((curpos += lrpad / 2 - 1) < w) {
161 drw_setscheme(drw, scheme[SchemeNorm]);
162 drw_rect(drw, x + curpos, 2, 2, bh - 4, 1, 0);
163 }
164
165
166 recalculatenumbers();
167
168 if (lines > 0) {
169 /* draw vertical list */
170 for (item = curr; item != next; item = item->right)
171 drawitem(item, x, y += bh, mw - x);
172 } else if (matches) {
173 /* draw horizontal list */
174 x += inputw;
175 w = TEXTW("<");
176 if (curr->left) {
177 drw_setscheme(drw, scheme[SchemeNorm]);
178 drw_text(drw, x, 0, w, bh, lrpad / 2, "<", 0);
179 }
180 x += w;
181 for (item = curr; item != next; item = item->right)
182
183 x = drawitem(item, x, 0, MIN(TEXTW(item->text), mw - x - TEXTW(">") - TEXTW(numbers)));
184
185 x = drawitem(item, x, 0, MIN(TEXTW(item->text), mw - x - TEXTW(">")));
186
187 if (next) {
188 w = TEXTW(">");
189 drw_setscheme(drw, scheme[SchemeNorm]);
190
191 drw_text(drw, mw - w - TEXTW(numbers), 0, w, bh, lrpad / 2, ">", 0);
192
193 drw_text(drw, mw - w, 0, w, bh, lrpad / 2, ">", 0);
194
195 }
196 }
197
198 drw_setscheme(drw, scheme[SchemeNorm]);
199 drw_text(drw, mw - TEXTW(numbers), 0, TEXTW(numbers), bh, lrpad / 2, numbers, 0);
200
201 drw_map(drw, win, 0, 0, mw, mh);
202 }
203
204 static void
205 grabfocus(void)
206 {
207 struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 };
208 Window focuswin;
209 int i, revertwin;
210
211 for (i = 0; i < 100; ++i) {
212 XGetInputFocus(dpy, &focuswin, &revertwin);
213 if (focuswin == win)
214 return;
215 XSetInputFocus(dpy, win, RevertToParent, CurrentTime);
216 nanosleep(&ts, NULL);
217 }
218 die("cannot grab focus");
219 }
220
221 static void
222 grabkeyboard(void)
223 {
224 struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000 };
225 int i;
226
227 if (embed)
228 return;
229 /* try to grab keyboard, we may have to wait for another process to ungrab */
230 for (i = 0; i < 1000; i++) {
231 if (XGrabKeyboard(dpy, DefaultRootWindow(dpy), True, GrabModeAsync,
232 GrabModeAsync, CurrentTime) == GrabSuccess)
233 return;
234 nanosleep(&ts, NULL);
235 }
236 die("cannot grab keyboard");
237 }
238
239 static void
240 match(void)
241 {
242 static char **tokv = NULL;
243 static int tokn = 0;
244
245 char buf[sizeof text], *s;
246 int i, tokc = 0;
247 size_t len, textsize;
248 struct item *item, *lprefix, *lsubstr, *prefixend, *substrend;
249
250 strcpy(buf, text);
251 /* separate input text into tokens to be matched individually */
252 for (s = strtok(buf, " "); s; tokv[tokc - 1] = s, s = strtok(NULL, " "))
253 if (++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
254 die("cannot realloc %u bytes:", tokn * sizeof *tokv);
255 len = tokc ? strlen(tokv[0]) : 0;
256
257 matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
258 textsize = strlen(text) + 1;
259 for (item = items; item && item->text; item++) {
260 for (i = 0; i < tokc; i++)
261 if (!fstrstr(item->text, tokv[i]))
262 break;
263 if (i != tokc) /* not all tokens match */
264 continue;
265 /* exact matches go first, then prefixes, then substrings */
266 if (!tokc || !fstrncmp(text, item->text, textsize))
267 appenditem(item, &matches, &matchend);
268 else if (!fstrncmp(tokv[0], item->text, len))
269 appenditem(item, &lprefix, &prefixend);
270 else
271 appenditem(item, &lsubstr, &substrend);
272 }
273 if (lprefix) {
274 if (matches) {
275 matchend->right = lprefix;
276 lprefix->left = matchend;
277 } else
278 matches = lprefix;
279 matchend = prefixend;
280 }
281 if (lsubstr) {
282 if (matches) {
283 matchend->right = lsubstr;
284 lsubstr->left = matchend;
285 } else
286 matches = lsubstr;
287 matchend = substrend;
288 }
289 curr = sel = matches;
290 calcoffsets();
291 }
292
293 static void
294 insert(const char *str, ssize_t n)
295 {
296 if (strlen(text) + n > sizeof text - 1)
297 return;
298 /* move existing text out of the way, insert new text, and update cursor */
299 memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0));
300 if (n > 0)
301 memcpy(&text[cursor], str, n);
302 cursor += n;
303 match();
304 }
305
306 static size_t
307 nextrune(int inc)
308 {
309 ssize_t n;
310
311 /* return location of next utf8 rune in the given direction (+1 or -1) */
312 for (n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc)
313 ;
314 return n;
315 }
316
317 static void
318 movewordedge(int dir)
319 {
320 if (dir < 0) { /* move cursor to the start of the word*/
321 while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)]))
322 cursor = nextrune(-1);
323 while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)]))
324 cursor = nextrune(-1);
325 } else { /* move cursor to the end of the word */
326 while (text[cursor] && strchr(worddelimiters, text[cursor]))
327 cursor = nextrune(+1);
328 while (text[cursor] && !strchr(worddelimiters, text[cursor]))
329 cursor = nextrune(+1);
330 }
331 }
332
333 static void
334 keypress(XKeyEvent *ev)
335 {
336 char buf[32];
337 int len;
338 KeySym ksym;
339 Status status;
340
341 len = XmbLookupString(xic, ev, buf, sizeof buf, &ksym, &status);
342 switch (status) {
343 default: /* XLookupNone, XBufferOverflow */
344 return;
345 case XLookupChars:
346 goto insert;
347 case XLookupKeySym:
348 case XLookupBoth:
349 break;
350 }
351
352 if (ev->state & ControlMask) {
353 switch(ksym) {
354 case XK_a: ksym = XK_Home; break;
355 case XK_b: ksym = XK_Left; break;
356 case XK_c: ksym = XK_Escape; break;
357 case XK_d: ksym = XK_Delete; break;
358 case XK_e: ksym = XK_End; break;
359 case XK_f: ksym = XK_Right; break;
360 case XK_g: ksym = XK_Escape; break;
361 case XK_h: ksym = XK_BackSpace; break;
362 case XK_i: ksym = XK_Tab; break;
363 case XK_j: /* fallthrough */
364 case XK_J: /* fallthrough */
365 case XK_m: /* fallthrough */
366 case XK_M: ksym = XK_Return; ev->state &= ~ControlMask; break;
367 case XK_n: ksym = XK_Down; break;
368 case XK_p: ksym = XK_Up; break;
369
370 case XK_k: /* delete right */
371 text[cursor] = '\0';
372 match();
373 break;
374 case XK_u: /* delete left */
375 insert(NULL, 0 - cursor);
376 break;
377 case XK_w: /* delete word */
378 while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)]))
379 insert(NULL, nextrune(-1) - cursor);
380 while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)]))
381 insert(NULL, nextrune(-1) - cursor);
382 break;
383 case XK_y: /* paste selection */
384 case XK_Y:
385 XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY,
386 utf8, utf8, win, CurrentTime);
387 return;
388 case XK_Left:
389 movewordedge(-1);
390 goto draw;
391 case XK_Right:
392 movewordedge(+1);
393 goto draw;
394 case XK_Return:
395 case XK_KP_Enter:
396 break;
397 case XK_bracketleft:
398 cleanup();
399 exit(1);
400 default:
401 return;
402 }
403 } else if (ev->state & Mod1Mask) {
404 switch(ksym) {
405 case XK_b:
406 movewordedge(-1);
407 goto draw;
408 case XK_f:
409 movewordedge(+1);
410 goto draw;
411 case XK_g: ksym = XK_Home; break;
412 case XK_G: ksym = XK_End; break;
413 case XK_h: ksym = XK_Up; break;
414 case XK_j: ksym = XK_Next; break;
415 case XK_k: ksym = XK_Prior; break;
416 case XK_l: ksym = XK_Down; break;
417 default:
418 return;
419 }
420 }
421
422 switch(ksym) {
423 default:
424 insert:
425 if (!iscntrl(*buf))
426 insert(buf, len);
427 break;
428 case XK_Delete:
429 if (text[cursor] == '\0')
430 return;
431 cursor = nextrune(+1);
432 /* fallthrough */
433 case XK_BackSpace:
434 if (cursor == 0)
435 return;
436 insert(NULL, nextrune(-1) - cursor);
437 break;
438 case XK_End:
439 if (text[cursor] != '\0') {
440 cursor = strlen(text);
441 break;
442 }
443 if (next) {
444 /* jump to end of list and position items in reverse */
445 curr = matchend;
446 calcoffsets();
447 curr = prev;
448 calcoffsets();
449 while (next && (curr = curr->right))
450 calcoffsets();
451 }
452 sel = matchend;
453 break;
454 case XK_Escape:
455 cleanup();
456 exit(1);
457 case XK_Home:
458 if (sel == matches) {
459 cursor = 0;
460 break;
461 }
462 sel = curr = matches;
463 calcoffsets();
464 break;
465 case XK_Left:
466 if (cursor > 0 && (!sel || !sel->left || lines > 0)) {
467 cursor = nextrune(-1);
468 break;
469 }
470 if (lines > 0)
471 return;
472 /* fallthrough */
473 case XK_Up:
474 if (sel && sel->left && (sel = sel->left)->right == curr) {
475 curr = prev;
476 calcoffsets();
477 }
478 break;
479 case XK_Next:
480 if (!next)
481 return;
482 sel = curr = next;
483 calcoffsets();
484 break;
485 case XK_Prior:
486 if (!prev)
487 return;
488 sel = curr = prev;
489 calcoffsets();
490 break;
491 case XK_Return:
492 case XK_KP_Enter:
493 puts((sel && !(ev->state & ShiftMask)) ? sel->text : text);
494 if (!(ev->state & ControlMask)) {
495 cleanup();
496 exit(0);
497 }
498 if (sel)
499 sel->out = 1;
500 break;
501 case XK_Right:
502 if (text[cursor] != '\0') {
503 cursor = nextrune(+1);
504 break;
505 }
506 if (lines > 0)
507 return;
508 /* fallthrough */
509 case XK_Down:
510 if (sel && sel->right && (sel = sel->right) == next) {
511 curr = next;
512 calcoffsets();
513 }
514 break;
515 case XK_Tab:
516 if (!sel)
517 return;
518 strncpy(text, sel->text, sizeof text - 1);
519 text[sizeof text - 1] = '\0';
520 cursor = strlen(text);
521 match();
522 break;
523 }
524
525 draw:
526 drawmenu();
527 }
528
529 static void
530 paste(void)
531 {
532 char *p, *q;
533 int di;
534 unsigned long dl;
535 Atom da;
536
537 /* we have been given the current selection, now insert it into input */
538 if (XGetWindowProperty(dpy, win, utf8, 0, (sizeof text / 4) + 1, False,
539 utf8, &da, &di, &dl, &dl, (unsigned char **)&p)
540 == Success && p) {
541 insert(p, (q = strchr(p, '\n')) ? q - p : (ssize_t)strlen(p));
542 XFree(p);
543 }
544 drawmenu();
545 }
546
547 static void
548 readstdin(void)
549 {
550 char buf[sizeof text], *p;
551 size_t i, imax = 0, size = 0;
552 unsigned int tmpmax = 0;
553
554 /* read each line from stdin and add it to the item list */
555 for (i = 0; fgets(buf, sizeof buf, stdin); i++) {
556 if (i + 1 >= size / sizeof *items)
557 if (!(items = realloc(items, (size += BUFSIZ))))
558 die("cannot realloc %u bytes:", size);
559 if ((p = strchr(buf, '\n')))
560 *p = '\0';
561 if (!(items[i].text = strdup(buf)))
562 die("cannot strdup %u bytes:", strlen(buf) + 1);
563 items[i].out = 0;
564 drw_font_getexts(drw->fonts, buf, strlen(buf), &tmpmax, NULL);
565 if (tmpmax > inputw) {
566 inputw = tmpmax;
567 imax = i;
568 }
569 }
570 if (items)
571 items[i].text = NULL;
572 inputw = items ? TEXTW(items[imax].text) : 0;
573 lines = MIN(lines, i);
574 }
575
576 static void
577 run(void)
578 {
579 XEvent ev;
580
581 while (!XNextEvent(dpy, &ev)) {
582 if (XFilterEvent(&ev, win))
583 continue;
584 switch(ev.type) {
585 case DestroyNotify:
586 if (ev.xdestroywindow.window != win)
587 break;
588 cleanup();
589 exit(1);
590
591 case ButtonPress:
592 buttonpress(&ev);
593 break;
594
595 case Expose:
596 if (ev.xexpose.count == 0)
597 drw_map(drw, win, 0, 0, mw, mh);
598 break;
599 case FocusIn:
600 /* regrab focus from parent window */
601 if (ev.xfocus.window != win)
602 grabfocus();
603 break;
604 case KeyPress:
605 keypress(&ev.xkey);
606 break;
607 case SelectionNotify:
608 if (ev.xselection.property == utf8)
609 paste();
610 break;
611 case VisibilityNotify:
612 if (ev.xvisibility.state != VisibilityUnobscured)
613 XRaiseWindow(dpy, win);
614 break;
615 }
616 }
617 }
618
619 static void
620 setup(void)
621 {
622 int x, y, i, j;
623 unsigned int du;
624 XSetWindowAttributes swa;
625 XIM xim;
626 Window w, dw, *dws;
627 XWindowAttributes wa;
628 XClassHint ch = {"dmenu", "dmenu"};
629
630 XineramaScreenInfo *info;
631 Window pw;
632 int a, di, n, area = 0;
633
634 /* init appearance */
635 for (j = 0; j < SchemeLast; j++)
636 scheme[j] = drw_scm_create(drw, colors[j], 2);
637
638 clip = XInternAtom(dpy, "CLIPBOARD", False);
639 utf8 = XInternAtom(dpy, "UTF8_STRING", False);
640
641 /* calculate menu geometry */
642 bh = drw->fonts->h + 2;
643
644 bh = MAX(height, bh);
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
828
829 if (ev->button == Button1) { \
830 if (ev->x == xx && ev->y == yy) { \
831 puts(item->text); \
832 exit(0); \
833 } \
834 xx = ev->x; \
835 yy = ev->y; \
836 sel = item; \
837 drawmenu(); \
838 } \
839 if (ev->button == Button3) { \
840 item->out = 1; \
841 drawmenu(); \
842 puts(item->text); \
843 }
844
845 static void
846 buttonpress(XEvent *e)
847 {
848 struct item *item;
849 XButtonPressedEvent *ev = &e->xbutton;
850 int x = 0, y = 0, h = bh, w;
851 static int xx = 0, yy = 0;
852
853 if (ev->window != win)
854 return;
855
856 if (prompt && *prompt)
857 x += promptw;
858
859 /* middle-mouse click: paste selection */
860 if (ev->button == Button2) {
861 XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY, utf8, utf8, win, CurrentTime);
862 drawmenu();
863 return;
864 }
865 /* scroll up */
866 if (ev->button == Button4) {
867 if (sel && sel->left && (sel = sel->left)->right == curr) curr = prev;
868 calcoffsets();
869 drawmenu();
870 return;
871 }
872 /* scroll down */
873 if (ev->button == Button5) {
874 if (sel && sel->right && (sel = sel->right) == next) curr = next;
875 calcoffsets();
876 drawmenu();
877 return;
878 }
879 if (lines > 0) {
880 /* vertical list: left-click on item */
881 w = mw - x;
882 for (item = curr; item != next; item = item->right) {
883 y += h;
884 if (ev->y >= y && ev->y <= y + h) {
885 MOUSE_SELECT
886 return;
887 }
888 }
889 } else if (matches) {
890 x += inputw;
891 w = TEXTW("<");
892 /* horizontal list: left-click on item */
893 for (item = curr; item != next; item = item->right) {
894 x += w;
895 w = MIN(TEXTW(item->text), mw - x - TEXTW(">"));
896 if (ev->x >= x && ev->x <= x + w) {
897 MOUSE_SELECT
898 return;
899 }
900 }
901 }
902 }
903
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