1 /* See LICENSE file for copyright and license details. */
10 #include <X11/Xutil.h>
12 #include <X11/extensions/Xinerama.h>
16 #define INTERSECT(x,y,w,h,r) (MAX(0, MIN((x)+(w),(r).x_org+(r).width) - MAX((x),(r).x_org)) \
17 * MAX(0, MIN((y)+(h),(r).y_org+(r).height) - MAX((y),(r).y_org)))
18 #define MIN(a,b) ((a) < (b) ? (a) : (b))
19 #define MAX(a,b) ((a) > (b) ? (a) : (b))
21 typedef struct Item Item;
27 static void appenditem(Item *item, Item **list, Item **last);
28 static void calcoffsets(void);
29 static char *cistrstr(const char *s, const char *sub);
30 static void drawmenu(void);
31 static void grabkeyboard(void);
32 static void insert(const char *str, ssize_t n);
33 static void keypress(XKeyEvent *ev);
34 static void match(void);
35 static size_t nextrune(int inc);
36 static void paste(void);
37 static void readstdin(void);
38 static void run(void);
39 static void setup(void);
40 static void usage(void);
42 static char text[BUFSIZ] = "";
43 static int bh, mw, mh;
44 static int inputw, promptw;
45 static size_t cursor = 0;
46 static const char *font = NULL;
47 static const char *prompt = NULL;
48 static const char *normbgcolor = "#222222";
49 static const char *normfgcolor = "#bbbbbb";
50 static const char *selbgcolor = "#005577";
51 static const char *selfgcolor = "#eeeeee";
52 static unsigned int lines = 0;
53 static unsigned long normcol[ColLast];
54 static unsigned long selcol[ColLast];
55 static Atom clip, utf8;
56 static Bool topbar = True;
58 static Item *items = NULL;
59 static Item *matches, *matchend;
60 static Item *prev, *curr, *next, *sel;
64 static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
65 static char *(*fstrstr)(const char *, const char *) = strstr;
68 main(int argc, char *argv[]) {
72 for(i = 1; i < argc; i++)
73 /* these options take no arguments */
74 if(!strcmp(argv[i], "-v")) { /* prints version information */
75 puts("dmenu-"VERSION", © 2006-2012 dmenu engineers, see LICENSE for details");
78 else if(!strcmp(argv[i], "-b")) /* appears at the bottom of the screen */
80 else if(!strcmp(argv[i], "-f")) /* grabs keyboard before reading stdin */
82 else if(!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
83 fstrncmp = strncasecmp;
88 /* these options take one argument */
89 else if(!strcmp(argv[i], "-l")) /* number of lines in vertical list */
90 lines = atoi(argv[++i]);
91 else if(!strcmp(argv[i], "-p")) /* adds prompt to left of input field */
93 else if(!strcmp(argv[i], "-fn")) /* font or font set */
95 else if(!strcmp(argv[i], "-nb")) /* normal background color */
96 normbgcolor = argv[++i];
97 else if(!strcmp(argv[i], "-nf")) /* normal foreground color */
98 normfgcolor = argv[++i];
99 else if(!strcmp(argv[i], "-sb")) /* selected background color */
100 selbgcolor = argv[++i];
101 else if(!strcmp(argv[i], "-sf")) /* selected foreground color */
102 selfgcolor = argv[++i];
120 return 1; /* unreachable */
124 appenditem(Item *item, Item **list, Item **last) {
126 (*last)->right = item;
142 n = mw - (promptw + inputw + textw(dc, "<") + textw(dc, ">"));
143 /* calculate which items will begin the next page and previous page */
144 for(i = 0, next = curr; next; next = next->right)
145 if((i += (lines > 0) ? bh : MIN(textw(dc, next->text), n)) > n)
147 for(i = 0, prev = curr; prev && prev->left; prev = prev->left)
148 if((i += (lines > 0) ? bh : MIN(textw(dc, prev->left->text), n)) > n)
153 cistrstr(const char *s, const char *sub) {
156 for(len = strlen(sub); *s; s++)
157 if(!strncasecmp(s, sub, len))
170 drawrect(dc, 0, 0, mw, mh, True, BG(dc, normcol));
174 drawtext(dc, prompt, selcol);
177 /* draw input field */
178 dc->w = (lines > 0 || !matches) ? mw - dc->x : inputw;
179 drawtext(dc, text, normcol);
180 if((curpos = textnw(dc, text, cursor) + dc->h/2 - 2) < dc->w)
181 drawrect(dc, curpos, 2, 1, dc->h - 4, True, FG(dc, normcol));
184 /* draw vertical list */
186 for(item = curr; item != next; item = item->right) {
188 drawtext(dc, item->text, (item == sel) ? selcol : normcol);
192 /* draw horizontal list */
194 dc->w = textw(dc, "<");
196 drawtext(dc, "<", normcol);
197 for(item = curr; item != next; item = item->right) {
199 dc->w = MIN(textw(dc, item->text), mw - dc->x - textw(dc, ">"));
200 drawtext(dc, item->text, (item == sel) ? selcol : normcol);
202 dc->w = textw(dc, ">");
205 drawtext(dc, ">", normcol);
207 mapdc(dc, win, mw, mh);
214 /* try to grab keyboard, we may have to wait for another process to ungrab */
215 for(i = 0; i < 1000; i++) {
216 if(XGrabKeyboard(dc->dpy, DefaultRootWindow(dc->dpy), True,
217 GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess)
221 eprintf("cannot grab keyboard\n");
225 insert(const char *str, ssize_t n) {
226 if(strlen(text) + n > sizeof text - 1)
228 /* move existing text out of the way, insert new text, and update cursor */
229 memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0));
231 memcpy(&text[cursor], str, n);
237 keypress(XKeyEvent *ev) {
240 KeySym ksym = NoSymbol;
243 len = XmbLookupString(xic, ev, buf, sizeof buf, &ksym, &status);
244 if(status == XBufferOverflow)
246 if(ev->state & ControlMask)
248 case XK_a: ksym = XK_Home; break;
249 case XK_b: ksym = XK_Left; break;
250 case XK_c: ksym = XK_Escape; break;
251 case XK_d: ksym = XK_Delete; break;
252 case XK_e: ksym = XK_End; break;
253 case XK_f: ksym = XK_Right; break;
254 case XK_h: ksym = XK_BackSpace; break;
255 case XK_i: ksym = XK_Tab; break;
256 case XK_j: ksym = XK_Return; break;
257 case XK_m: ksym = XK_Return; break;
258 case XK_n: ksym = XK_Down; break;
259 case XK_p: ksym = XK_Up; break;
261 case XK_k: /* delete right */
265 case XK_u: /* delete left */
266 insert(NULL, 0 - cursor);
268 case XK_w: /* delete word */
269 while(cursor > 0 && text[nextrune(-1)] == ' ')
270 insert(NULL, nextrune(-1) - cursor);
271 while(cursor > 0 && text[nextrune(-1)] != ' ')
272 insert(NULL, nextrune(-1) - cursor);
274 case XK_y: /* paste selection */
275 XConvertSelection(dc->dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY,
276 utf8, utf8, win, CurrentTime);
281 else if(ev->state & Mod1Mask)
283 case XK_g: ksym = XK_Home; break;
284 case XK_G: ksym = XK_End; break;
285 case XK_h: ksym = XK_Up; break;
286 case XK_j: ksym = XK_Next; break;
287 case XK_k: ksym = XK_Prior; break;
288 case XK_l: ksym = XK_Down; break;
298 if(text[cursor] == '\0')
300 cursor = nextrune(+1);
305 insert(NULL, nextrune(-1) - cursor);
308 if(text[cursor] != '\0') {
309 cursor = strlen(text);
313 /* jump to end of list and position items in reverse */
318 while(next && (curr = curr->right))
330 sel = curr = matches;
334 if(cursor > 0 && (!sel || !sel->left || lines > 0)) {
335 cursor = nextrune(-1);
342 if(sel && sel->left && (sel = sel->left)->right == curr) {
361 puts((sel && !(ev->state & ShiftMask)) ? sel->text : text);
364 if(text[cursor] != '\0') {
365 cursor = nextrune(+1);
372 if(sel && sel->right && (sel = sel->right) == next) {
380 strncpy(text, sel->text, sizeof text);
381 cursor = strlen(text);
390 static char **tokv = NULL;
393 char buf[sizeof text], *s;
396 Item *item, *lprefix, *lsubstr, *prefixend, *substrend;
399 /* separate input text into tokens to be matched individually */
400 for(s = strtok(buf, " "); s; tokv[tokc-1] = s, s = strtok(NULL, " "))
401 if(++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
402 eprintf("cannot realloc %u bytes\n", tokn * sizeof *tokv);
403 len = tokc ? strlen(tokv[0]) : 0;
405 matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
406 for(item = items; item && item->text; item++) {
407 for(i = 0; i < tokc; i++)
408 if(!fstrstr(item->text, tokv[i]))
410 if(i != tokc) /* not all tokens match */
412 /* exact matches go first, then prefixes, then substrings */
413 if(!tokc || !fstrncmp(tokv[0], item->text, len+1))
414 appenditem(item, &matches, &matchend);
415 else if(!fstrncmp(tokv[0], item->text, len))
416 appenditem(item, &lprefix, &prefixend);
418 appenditem(item, &lsubstr, &substrend);
422 matchend->right = lprefix;
423 lprefix->left = matchend;
427 matchend = prefixend;
431 matchend->right = lsubstr;
432 lsubstr->left = matchend;
436 matchend = substrend;
438 curr = sel = matches;
446 /* return location of next utf8 rune in the given direction (+1 or -1) */
447 for(n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc);
458 /* we have been given the current selection, now insert it into input */
459 XGetWindowProperty(dc->dpy, win, utf8, 0, (sizeof text / 4) + 1, False,
460 utf8, &da, &di, &dl, &dl, (unsigned char **)&p);
461 insert(p, (q = strchr(p, '\n')) ? q-p : (ssize_t)strlen(p));
468 char buf[sizeof text], *p, *maxstr = NULL;
469 size_t i, max = 0, size = 0;
471 /* read each line from stdin and add it to the item list */
472 for(i = 0; fgets(buf, sizeof buf, stdin); i++) {
473 if(i+1 >= size / sizeof *items)
474 if(!(items = realloc(items, (size += BUFSIZ))))
475 eprintf("cannot realloc %u bytes:", size);
476 if((p = strchr(buf, '\n')))
478 if(!(items[i].text = strdup(buf)))
479 eprintf("cannot strdup %u bytes:", strlen(buf)+1);
480 if(strlen(items[i].text) > max)
481 max = strlen(maxstr = items[i].text);
484 items[i].text = NULL;
485 inputw = maxstr ? textw(dc, maxstr) : 0;
486 lines = MIN(lines, i);
493 while(!XNextEvent(dc->dpy, &ev)) {
494 if(XFilterEvent(&ev, win))
498 if(ev.xexpose.count == 0)
499 mapdc(dc, win, mw, mh);
504 case SelectionNotify:
505 if(ev.xselection.property == utf8)
508 case VisibilityNotify:
509 if(ev.xvisibility.state != VisibilityUnobscured)
510 XRaiseWindow(dc->dpy, win);
518 int x, y, screen = DefaultScreen(dc->dpy);
519 Window root = RootWindow(dc->dpy, screen);
520 XSetWindowAttributes swa;
524 XineramaScreenInfo *info;
527 normcol[ColBG] = getcolor(dc, normbgcolor);
528 normcol[ColFG] = getcolor(dc, normfgcolor);
529 selcol[ColBG] = getcolor(dc, selbgcolor);
530 selcol[ColFG] = getcolor(dc, selfgcolor);
532 clip = XInternAtom(dc->dpy, "CLIPBOARD", False);
533 utf8 = XInternAtom(dc->dpy, "UTF8_STRING", False);
535 /* calculate menu geometry */
536 bh = dc->font.height + 2;
537 lines = MAX(lines, 0);
538 mh = (lines + 1) * bh;
540 if((info = XineramaQueryScreens(dc->dpy, &n))) {
541 int a, j, di, i = 0, area = 0;
543 Window w, pw, dw, *dws;
544 XWindowAttributes wa;
546 XGetInputFocus(dc->dpy, &w, &di);
547 if(w != root && w != PointerRoot && w != None) {
548 /* find top-level window containing current input focus */
550 if(XQueryTree(dc->dpy, (pw = w), &dw, &w, &dws, &du) && dws)
552 } while(w != root && w != pw);
553 /* find xinerama screen with which the window intersects most */
554 if(XGetWindowAttributes(dc->dpy, pw, &wa))
555 for(j = 0; j < n; j++)
556 if((a = INTERSECT(wa.x, wa.y, wa.width, wa.height, info[j])) > area) {
561 /* no focused window is on screen, so use pointer location instead */
562 if(!area && XQueryPointer(dc->dpy, root, &dw, &dw, &x, &y, &di, &di, &du))
563 for(i = 0; i < n; i++)
564 if(INTERSECT(x, y, 1, 1, info[i]))
568 y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
576 y = topbar ? 0 : DisplayHeight(dc->dpy, screen) - mh;
577 mw = DisplayWidth(dc->dpy, screen);
579 promptw = prompt ? textw(dc, prompt) : 0;
580 inputw = MIN(inputw, mw/3);
583 /* create menu window */
584 swa.override_redirect = True;
585 swa.background_pixel = normcol[ColBG];
586 swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
587 win = XCreateWindow(dc->dpy, root, x, y, mw, mh, 0,
588 DefaultDepth(dc->dpy, screen), CopyFromParent,
589 DefaultVisual(dc->dpy, screen),
590 CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
592 /* open input methods */
593 xim = XOpenIM(dc->dpy, NULL, NULL, NULL);
594 xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
595 XNClientWindow, win, XNFocusWindow, win, NULL);
597 XMapRaised(dc->dpy, win);
598 resizedc(dc, mw, mh);
604 fputs("usage: dmenu [-b] [-f] [-i] [-l lines] [-p prompt] [-fn font]\n"
605 " [-nb color] [-nf color] [-sb color] [-sf color] [-v]\n", stderr);