1 /* © 2006-2007 Anselm R. Garbe <garbeam at gmail dot com>
2 * © 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
3 * See LICENSE file for license details. */
11 #include <X11/Xutil.h>
12 #include <X11/keysym.h>
14 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
16 typedef struct Item Item;
18 Item *next; /* traverses all items */
19 Item *left, *right; /* traverses items matching current search pattern */
25 static char text[4096];
26 static char *prompt = NULL;
30 static unsigned int cmdw = 0;
31 static unsigned int promptw = 0;
32 static unsigned int numlockmask = 0;
33 static Bool running = True;
34 static Item *allitems = NULL; /* first of all items */
35 static Item *item = NULL; /* first of pattern matching items */
36 static Item *sel = NULL;
37 static Item *next = NULL;
38 static Item *prev = NULL;
39 static Item *curr = NULL;
49 w = promptw + cmdw + 2 * SPACE;
50 for(next = curr; next; next=next->right) {
51 tw = textw(next->text);
58 w = promptw + cmdw + 2 * SPACE;
59 for(prev = curr; prev && prev->left; prev=prev->left) {
60 tw = textw(prev->left->text);
77 drawtext(NULL, dc.norm);
81 drawtext(prompt, dc.sel);
88 drawtext(text[0] ? text : NULL, dc.norm);
92 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
94 /* determine maximum items */
95 for(i = curr; i != next; i=i->right) {
96 dc.w = textw(i->text);
99 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
104 drawtext(next ? ">" : NULL, dc.norm);
106 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
114 for(len = 1000; len; len--) {
115 if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
124 initcolor(const char *colstr) {
125 Colormap cmap = DefaultColormap(dpy, screen);
128 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
129 eprint("error, cannot allocate color '%s'\n", colstr);
134 initfont(const char *fontstr) {
135 char *def, **missing;
138 if(!fontstr || fontstr[0] == '\0')
139 eprint("error, cannot load font: '%s'\n", fontstr);
142 XFreeFontSet(dpy, dc.font.set);
143 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
145 XFreeStringList(missing);
147 XFontSetExtents *font_extents;
148 XFontStruct **xfonts;
150 dc.font.ascent = dc.font.descent = 0;
151 font_extents = XExtentsOfFontSet(dc.font.set);
152 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
153 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
154 if(dc.font.ascent < (*xfonts)->ascent)
155 dc.font.ascent = (*xfonts)->ascent;
156 if(dc.font.descent < (*xfonts)->descent)
157 dc.font.descent = (*xfonts)->descent;
163 XFreeFont(dpy, dc.font.xfont);
164 dc.font.xfont = NULL;
165 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)))
166 eprint("error, cannot load font: '%s'\n", fontstr);
167 dc.font.ascent = dc.font.xfont->ascent;
168 dc.font.descent = dc.font.xfont->descent;
170 dc.font.height = dc.font.ascent + dc.font.descent;
174 match(char *pattern) {
180 plen = strlen(pattern);
183 for(i = allitems; i; i=i->next)
184 if(!plen || !strncmp(pattern, i->text, plen)) {
194 for(i = allitems; i; i=i->next)
195 if(plen && strncmp(pattern, i->text, plen)
196 && strstr(i->text, pattern)) {
206 curr = prev = next = sel = item;
211 kpress(XKeyEvent * e) {
219 num = XLookupString(e, buf, sizeof buf, &ksym, 0);
220 if(IsKeypadKey(ksym)) {
221 if(ksym == XK_KP_Enter) {
223 } else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) {
224 ksym = (ksym - XK_KP_0) + XK_0;
227 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
228 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
229 || IsPrivateKeypadKey(ksym))
231 /* first check if a control mask is omitted */
232 if(e->state & ControlMask) {
234 default: /* ignore other control sequences */
261 while(i >= 0 && text[i] == ' ')
263 while(i >= 0 && text[i] != ' ')
271 if(CLEANMASK(e->state) & Mod1Mask) {
296 if(num && !iscntrl((int) buf[0])) {
299 strncat(text, buf, sizeof text);
301 strncpy(text, buf, sizeof text);
318 while(sel && sel->right)
332 if(!(sel && sel->left))
335 if(sel->right == curr) {
353 if((e->state & ShiftMask) && text)
354 fprintf(stdout, "%s", text);
356 fprintf(stdout, "%s", sel->text);
358 fprintf(stdout, "%s", text);
363 if(!(sel && sel->right))
374 strncpy(text, sel->text, sizeof text);
383 static char *maxname = NULL;
385 unsigned int len = 0, max = 0;
389 while(fgets(buf, sizeof buf, stdin)) {
391 if (buf[len - 1] == '\n')
398 new = emalloc(sizeof(Item));
399 new->next = new->left = new->right = NULL;
413 eprint("usage: dmenu [-b] [-fn <font>] [-nb <color>] [-nf <color>]\n"
414 " [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
424 main(int argc, char *argv[]) {
428 char *normbg = NORMBGCOLOR;
429 char *normfg = NORMFGCOLOR;
430 char *selbg = SELBGCOLOR;
431 char *selfg = SELFGCOLOR;
435 XModifierKeymap *modmap;
436 XSetWindowAttributes wa;
438 /* command line args */
439 for(i = 1; i < argc; i++)
440 if(!strcmp(argv[i], "-b")) {
443 else if(!strcmp(argv[i], "-fn")) {
444 if(++i < argc) font = argv[i];
446 else if(!strcmp(argv[i], "-nb")) {
447 if(++i < argc) normbg = argv[i];
449 else if(!strcmp(argv[i], "-nf")) {
450 if(++i < argc) normfg = argv[i];
452 else if(!strcmp(argv[i], "-p")) {
453 if(++i < argc) prompt = argv[i];
455 else if(!strcmp(argv[i], "-sb")) {
456 if(++i < argc) selbg = argv[i];
458 else if(!strcmp(argv[i], "-sf")) {
459 if(++i < argc) selfg = argv[i];
461 else if(!strcmp(argv[i], "-v"))
462 eprint("dmenu-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk\n");
465 setlocale(LC_CTYPE, "");
466 dpy = XOpenDisplay(0);
468 eprint("dmenu: cannot open display\n");
469 screen = DefaultScreen(dpy);
470 root = RootWindow(dpy, screen);
471 if(isatty(STDIN_FILENO)) {
472 maxname = readstdin();
473 running = grabkeyboard();
475 else { /* prevent keypress loss */
476 running = grabkeyboard();
477 maxname = readstdin();
479 /* init modifier map */
480 modmap = XGetModifierMapping(dpy);
481 for (i = 0; i < 8; i++) {
482 for (j = 0; j < modmap->max_keypermod; j++) {
483 if(modmap->modifiermap[i * modmap->max_keypermod + j]
484 == XKeysymToKeycode(dpy, XK_Num_Lock))
485 numlockmask = (1 << i);
488 XFreeModifiermap(modmap);
490 dc.norm[ColBG] = initcolor(normbg);
491 dc.norm[ColFG] = initcolor(normfg);
492 dc.sel[ColBG] = initcolor(selbg);
493 dc.sel[ColFG] = initcolor(selfg);
496 wa.override_redirect = 1;
497 wa.background_pixmap = ParentRelative;
498 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
499 mw = DisplayWidth(dpy, screen);
500 mh = dc.font.height + 2;
501 win = XCreateWindow(dpy, root, 0,
502 bottom ? DisplayHeight(dpy, screen) - mh : 0, mw, mh, 0,
503 DefaultDepth(dpy, screen), CopyFromParent,
504 DefaultVisual(dpy, screen),
505 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
507 dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
508 dc.gc = XCreateGC(dpy, root, 0, 0);
509 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
511 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
513 cmdw = textw(maxname);
517 promptw = textw(prompt);
522 XMapRaised(dpy, win);
526 /* main event loop */
527 while(running && !XNextEvent(dpy, &ev))
529 default: /* ignore all crap */
535 if(ev.xexpose.count == 0)
542 itm = allitems->next;
543 free(allitems->text);
548 XFreeFontSet(dpy, dc.font.set);
550 XFreeFont(dpy, dc.font.xfont);
551 XFreePixmap(dpy, dc.drawable);
553 XDestroyWindow(dpy, win);
554 XUngrabKeyboard(dpy, CurrentTime);