1 /* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
2 * (C)opyright MMVI-MMVII Sander van Dijk <a dot h dot vandijk at gmail dot com>
3 * See LICENSE file for license details.
13 #include <sys/select.h>
15 #include <X11/Xutil.h>
16 #include <X11/keysym.h>
18 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
20 typedef struct Item Item;
22 Item *next; /* traverses all items */
23 Item *left, *right; /* traverses items matching current search pattern */
29 static char text[4096];
30 static char *prompt = NULL;
34 static unsigned int cmdw = 0;
35 static unsigned int promptw = 0;
36 static unsigned int numlockmask = 0;
37 static Bool running = True;
38 static Item *allitems = NULL; /* first of all items */
39 static Item *item = NULL; /* first of pattern matching items */
40 static Item *sel = NULL;
41 static Item *next = NULL;
42 static Item *prev = NULL;
43 static Item *curr = NULL;
48 textnw(const char *text, unsigned int len) {
52 XmbTextExtents(dc.font.set, text, len, NULL, &r);
55 return XTextWidth(dc.font.xfont, text, len);
59 textw(const char *text) {
60 return textnw(text, strlen(text)) + dc.font.height;
69 w = promptw + cmdw + 2 * SPACE;
70 for(next = curr; next; next=next->right) {
71 tw = textw(next->text);
78 w = promptw + cmdw + 2 * SPACE;
79 for(prev = curr; prev && prev->left; prev=prev->left) {
80 tw = textw(prev->left->text);
90 drawtext(const char *text, unsigned long col[ColLast]) {
93 unsigned int len, olen;
95 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
97 XSetForeground(dpy, dc.gc, col[ColBG]);
98 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
102 olen = len = strlen(text);
103 if(len >= sizeof buf)
104 len = sizeof buf - 1;
105 memcpy(buf, text, len);
107 h = dc.font.ascent + dc.font.descent;
108 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
110 /* shorten text if necessary */
111 while(len && (w = textnw(buf, len)) > dc.w - h)
122 return; /* too long */
123 gcv.foreground = col[ColFG];
125 XChangeGC(dpy, dc.gc, GCForeground, &gcv);
126 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc,
130 gcv.font = dc.font.xfont->fid;
131 XChangeGC(dpy, dc.gc, GCForeground | GCFont, &gcv);
132 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
144 drawtext(NULL, dc.norm);
148 drawtext(prompt, dc.sel);
155 drawtext(text[0] ? text : NULL, dc.norm);
159 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
161 /* determine maximum items */
162 for(i = curr; i != next; i=i->right) {
163 dc.w = textw(i->text);
166 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
171 drawtext(next ? ">" : NULL, dc.norm);
173 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
178 getcolor(const char *colstr) {
179 Colormap cmap = DefaultColormap(dpy, screen);
182 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
183 eprint("error, cannot allocate color '%s'\n", colstr);
188 setfont(const char *fontstr) {
189 char *def, **missing;
194 XFreeFontSet(dpy, dc.font.set);
195 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
197 XFreeStringList(missing);
199 XFontSetExtents *font_extents;
200 XFontStruct **xfonts;
202 dc.font.ascent = dc.font.descent = 0;
203 font_extents = XExtentsOfFontSet(dc.font.set);
204 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
205 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
206 if(dc.font.ascent < (*xfonts)->ascent)
207 dc.font.ascent = (*xfonts)->ascent;
208 if(dc.font.descent < (*xfonts)->descent)
209 dc.font.descent = (*xfonts)->descent;
215 XFreeFont(dpy, dc.font.xfont);
216 dc.font.xfont = NULL;
217 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)))
218 eprint("error, cannot load font: '%s'\n", fontstr);
219 dc.font.ascent = dc.font.xfont->ascent;
220 dc.font.descent = dc.font.xfont->descent;
222 dc.font.height = dc.font.ascent + dc.font.descent;
226 match(char *pattern) {
232 plen = strlen(pattern);
235 for(i = allitems; i; i=i->next)
236 if(!plen || !strncmp(pattern, i->text, plen)) {
246 for(i = allitems; i; i=i->next)
247 if(plen && strncmp(pattern, i->text, plen)
248 && strstr(i->text, pattern)) {
258 curr = prev = next = sel = item;
263 kpress(XKeyEvent * e) {
265 int i, num, prev_nitem;
271 num = XLookupString(e, buf, sizeof buf, &ksym, 0);
272 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
273 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
274 || IsPrivateKeypadKey(ksym))
276 /* first check if a control mask is omitted */
277 if(e->state & ControlMask) {
279 default: /* ignore other control sequences */
306 while(i >= 0 && text[i] == ' ')
308 while(i >= 0 && text[i] != ' ')
316 if(CLEANMASK(e->state) & Mod1Mask) {
341 if(num && !iscntrl((int) buf[0])) {
344 strncat(text, buf, sizeof text);
346 strncpy(text, buf, sizeof text);
356 } while(i && nitem && prev_nitem == nitem);
367 while(sel && sel->right)
381 if(!(sel && sel->left))
384 if(sel->right == curr) {
402 if((e->state & ShiftMask) && text)
403 fprintf(stdout, "%s", text);
405 fprintf(stdout, "%s", sel->text);
407 fprintf(stdout, "%s", text);
412 if(!(sel && sel->right))
423 strncpy(text, sel->text, sizeof text);
432 static char *maxname = NULL;
434 unsigned int len = 0, max = 0;
438 while(fgets(buf, sizeof buf, stdin)) {
440 if (buf[len - 1] == '\n')
447 new = emalloc(sizeof(Item));
448 new->next = new->left = new->right = NULL;
467 main(int argc, char *argv[]) {
471 char *normbg = NORMBGCOLOR;
472 char *normfg = NORMFGCOLOR;
473 char *selbg = SELBGCOLOR;
474 char *selfg = SELFGCOLOR;
477 struct timeval timeout;
480 XModifierKeymap *modmap;
481 XSetWindowAttributes wa;
485 /* command line args */
486 for(i = 1; i < argc; i++)
487 if(!strncmp(argv[i], "-b", 3)) {
490 else if(!strncmp(argv[i], "-fn", 4)) {
491 if(++i < argc) font = argv[i];
493 else if(!strncmp(argv[i], "-nb", 4)) {
494 if(++i < argc) normbg = argv[i];
496 else if(!strncmp(argv[i], "-nf", 4)) {
497 if(++i < argc) normfg = argv[i];
499 else if(!strncmp(argv[i], "-p", 3)) {
500 if(++i < argc) prompt = argv[i];
502 else if(!strncmp(argv[i], "-sb", 4)) {
503 if(++i < argc) selbg = argv[i];
505 else if(!strncmp(argv[i], "-sf", 4)) {
506 if(++i < argc) selfg = argv[i];
508 else if(!strncmp(argv[i], "-t", 3)) {
509 if(++i < argc) timeout.tv_sec = atoi(argv[i]);
511 else if(!strncmp(argv[i], "-v", 3)) {
512 fputs("dmenu-"VERSION", (C)opyright MMVI-MMVII Anselm R. Garbe\n", stdout);
516 eprint("usage: dmenu [-b] [-fn <font>] [-nb <color>] [-nf <color>] [-p <prompt>]\n"
517 " [-sb <color>] [-sf <color>] [-t <seconds>] [-v]\n", stdout);
518 setlocale(LC_CTYPE, "");
519 dpy = XOpenDisplay(0);
521 eprint("dmenu: cannot open display\n");
522 screen = DefaultScreen(dpy);
523 root = RootWindow(dpy, screen);
525 /* Note, the select() construction allows to grab all keypresses as
526 * early as possible, to not loose them. But if there is no standard
527 * input supplied, we will make sure to exit after MAX_WAIT_STDIN
528 * seconds. This is convenience behavior for rapid typers.
530 while(XGrabKeyboard(dpy, root, True, GrabModeAsync,
531 GrabModeAsync, CurrentTime) != GrabSuccess)
534 FD_SET(STDIN_FILENO, &rd);
535 if(select(ConnectionNumber(dpy) + 1, &rd, NULL, NULL, &timeout) < 1)
536 goto UninitializedEnd;
537 maxname = readstdin();
538 /* init modifier map */
539 modmap = XGetModifierMapping(dpy);
540 for (i = 0; i < 8; i++) {
541 for (j = 0; j < modmap->max_keypermod; j++) {
542 if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
543 numlockmask = (1 << i);
546 XFreeModifiermap(modmap);
548 dc.norm[ColBG] = getcolor(normbg);
549 dc.norm[ColFG] = getcolor(normfg);
550 dc.sel[ColBG] = getcolor(selbg);
551 dc.sel[ColFG] = getcolor(selfg);
554 wa.override_redirect = 1;
555 wa.background_pixmap = ParentRelative;
556 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
557 mw = DisplayWidth(dpy, screen);
558 mh = dc.font.height + 2;
559 win = XCreateWindow(dpy, root, 0,
560 bottom ? DisplayHeight(dpy, screen) - mh : 0, mw, mh, 0,
561 DefaultDepth(dpy, screen), CopyFromParent,
562 DefaultVisual(dpy, screen),
563 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
565 dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
566 dc.gc = XCreateGC(dpy, root, 0, 0);
567 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
569 cmdw = textw(maxname);
573 promptw = textw(prompt);
578 XMapRaised(dpy, win);
582 /* main event loop */
583 while(running && !XNextEvent(dpy, &ev))
585 default: /* ignore all crap */
591 if(ev.xexpose.count == 0)
598 itm = allitems->next;
599 free(allitems->text);
604 XFreeFontSet(dpy, dc.font.set);
606 XFreeFont(dpy, dc.font.xfont);
607 XFreePixmap(dpy, dc.drawable);
609 XDestroyWindow(dpy, win);
611 XUngrabKeyboard(dpy, CurrentTime);