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.
12 #include <X11/Xutil.h>
13 #include <X11/keysym.h>
15 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
17 typedef struct Item Item;
19 Item *next; /* traverses all items */
20 Item *left, *right; /* traverses items matching current search pattern */
26 static char text[4096];
27 static char *prompt = NULL;
31 static unsigned int cmdw = 0;
32 static unsigned int promptw = 0;
33 static unsigned int numlockmask = 0;
34 static Bool running = True;
35 static Item *allitems = NULL; /* first of all items */
36 static Item *item = NULL; /* first of pattern matching items */
37 static Item *sel = NULL;
38 static Item *next = NULL;
39 static Item *prev = NULL;
40 static Item *curr = NULL;
50 w = promptw + cmdw + 2 * SPACE;
51 for(next = curr; next; next=next->right) {
52 tw = textw(next->text);
59 w = promptw + cmdw + 2 * SPACE;
60 for(prev = curr; prev && prev->left; prev=prev->left) {
61 tw = textw(prev->left->text);
78 drawtext(NULL, dc.norm);
82 drawtext(prompt, dc.sel);
89 drawtext(text[0] ? text : NULL, dc.norm);
93 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
95 /* determine maximum items */
96 for(i = curr; i != next; i=i->right) {
97 dc.w = textw(i->text);
100 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
105 drawtext(next ? ">" : NULL, dc.norm);
107 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
113 while(XGrabKeyboard(dpy, win, True, GrabModeAsync,
114 GrabModeAsync, CurrentTime) != GrabSuccess)
119 initcolor(const char *colstr) {
120 Colormap cmap = DefaultColormap(dpy, screen);
123 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
124 eprint("error, cannot allocate color '%s'\n", colstr);
129 initfont(const char *fontstr) {
130 char *def, **missing;
135 XFreeFontSet(dpy, dc.font.set);
136 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
138 XFreeStringList(missing);
140 XFontSetExtents *font_extents;
141 XFontStruct **xfonts;
143 dc.font.ascent = dc.font.descent = 0;
144 font_extents = XExtentsOfFontSet(dc.font.set);
145 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
146 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
147 if(dc.font.ascent < (*xfonts)->ascent)
148 dc.font.ascent = (*xfonts)->ascent;
149 if(dc.font.descent < (*xfonts)->descent)
150 dc.font.descent = (*xfonts)->descent;
156 XFreeFont(dpy, dc.font.xfont);
157 dc.font.xfont = NULL;
158 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)))
159 eprint("error, cannot load font: '%s'\n", fontstr);
160 dc.font.ascent = dc.font.xfont->ascent;
161 dc.font.descent = dc.font.xfont->descent;
163 dc.font.height = dc.font.ascent + dc.font.descent;
167 match(char *pattern) {
173 plen = strlen(pattern);
176 for(i = allitems; i; i=i->next)
177 if(!plen || !strncmp(pattern, i->text, plen)) {
187 for(i = allitems; i; i=i->next)
188 if(plen && strncmp(pattern, i->text, plen)
189 && strstr(i->text, pattern)) {
199 curr = prev = next = sel = item;
204 kpress(XKeyEvent * e) {
212 num = XLookupString(e, buf, sizeof buf, &ksym, 0);
213 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
214 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
215 || IsPrivateKeypadKey(ksym))
217 /* first check if a control mask is omitted */
218 if(e->state & ControlMask) {
220 default: /* ignore other control sequences */
247 while(i >= 0 && text[i] == ' ')
249 while(i >= 0 && text[i] != ' ')
257 if(CLEANMASK(e->state) & Mod1Mask) {
282 if(num && !iscntrl((int) buf[0])) {
285 strncat(text, buf, sizeof text);
287 strncpy(text, buf, sizeof text);
304 while(sel && sel->right)
318 if(!(sel && sel->left))
321 if(sel->right == curr) {
339 if((e->state & ShiftMask) && text)
340 fprintf(stdout, "%s", text);
342 fprintf(stdout, "%s", sel->text);
344 fprintf(stdout, "%s", text);
349 if(!(sel && sel->right))
360 strncpy(text, sel->text, sizeof text);
369 static char *maxname = NULL;
371 unsigned int len = 0, max = 0;
375 while(fgets(buf, sizeof buf, stdin)) {
377 if (buf[len - 1] == '\n')
384 new = emalloc(sizeof(Item));
385 new->next = new->left = new->right = NULL;
399 eprint("usage: dmenu [-b] [-fn <font>] [-nb <color>] [-nf <color>]\n"
400 " [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
410 main(int argc, char *argv[]) {
414 char *normbg = NORMBGCOLOR;
415 char *normfg = NORMFGCOLOR;
416 char *selbg = SELBGCOLOR;
417 char *selfg = SELFGCOLOR;
421 XModifierKeymap *modmap;
422 XSetWindowAttributes wa;
424 /* command line args */
425 for(i = 1; i < argc; i++)
426 if(!strncmp(argv[i], "-b", 3)) {
429 else if(!strncmp(argv[i], "-fn", 4)) {
430 if(++i < argc) font = argv[i];
432 else if(!strncmp(argv[i], "-nb", 4)) {
433 if(++i < argc) normbg = argv[i];
435 else if(!strncmp(argv[i], "-nf", 4)) {
436 if(++i < argc) normfg = argv[i];
438 else if(!strncmp(argv[i], "-p", 3)) {
439 if(++i < argc) prompt = argv[i];
441 else if(!strncmp(argv[i], "-sb", 4)) {
442 if(++i < argc) selbg = argv[i];
444 else if(!strncmp(argv[i], "-sf", 4)) {
445 if(++i < argc) selfg = argv[i];
447 else if(!strncmp(argv[i], "-v", 3))
448 eprint("dmenu-"VERSION", (C)opyright MMVI-MMVII Anselm R. Garbe\n");
451 setlocale(LC_CTYPE, "");
452 dpy = XOpenDisplay(0);
454 eprint("dmenu: cannot open display\n");
455 screen = DefaultScreen(dpy);
456 root = RootWindow(dpy, screen);
458 dc.norm[ColBG] = initcolor(normbg);
459 dc.norm[ColFG] = initcolor(normfg);
460 dc.sel[ColBG] = initcolor(selbg);
461 dc.sel[ColFG] = initcolor(selfg);
464 wa.override_redirect = 1;
465 wa.background_pixmap = ParentRelative;
466 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
467 mw = DisplayWidth(dpy, screen);
468 mh = dc.font.height + 2;
469 win = XCreateWindow(dpy, root, 0,
470 bottom ? DisplayHeight(dpy, screen) - mh : 0, mw, mh, 0,
471 DefaultDepth(dpy, screen), CopyFromParent,
472 DefaultVisual(dpy, screen),
473 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
475 dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
476 dc.gc = XCreateGC(dpy, root, 0, 0);
477 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
479 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
481 XMapRaised(dpy, win);
482 if(isatty(STDIN_FILENO)) {
483 maxname = readstdin();
486 else { /* prevent keypress loss */
488 maxname = readstdin();
490 /* init modifier map */
491 modmap = XGetModifierMapping(dpy);
492 for(i = 0; i < 8; i++)
493 for(j = 0; j < modmap->max_keypermod; j++) {
494 if(modmap->modifiermap[i * modmap->max_keypermod + j]
495 == XKeysymToKeycode(dpy, XK_Num_Lock))
496 numlockmask = (1 << i);
498 XFreeModifiermap(modmap);
500 cmdw = textw(maxname);
504 promptw = textw(prompt);
511 /* main event loop */
512 while(running && !XNextEvent(dpy, &ev))
514 default: /* ignore all crap */
520 if(ev.xexpose.count == 0)
527 itm = allitems->next;
528 free(allitems->text);
533 XFreeFontSet(dpy, dc.font.set);
535 XFreeFont(dpy, dc.font.xfont);
536 XFreePixmap(dpy, dc.drawable);
538 XDestroyWindow(dpy, win);
539 XUngrabKeyboard(dpy, CurrentTime);