1 /* See LICENSE file for copyright and license details. */
10 #include <X11/keysym.h>
12 #include <X11/Xutil.h>
14 #include <X11/extensions/Xinerama.h>
18 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
19 #define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
20 #define MIN(a, b) ((a) < (b) ? (a) : (b))
21 #define MAX(a, b) ((a) > (b) ? (a) : (b))
22 #define IS_UTF8_1ST_CHAR(c) ((((c) & 0xc0) == 0xc0) || !((c) & 0x80))
24 typedef struct Item Item;
27 Item *next; /* traverses all items */
28 Item *left, *right; /* traverses items matching current search pattern */
31 /* forward declarations */
32 static void appenditem(Item *i, Item **list, Item **last);
33 static void calcoffsetsh(void);
34 static void calcoffsetsv(void);
35 static char *cistrstr(const char *s, const char *sub);
36 static void cleanup(void);
37 static void drawmenu(void);
38 static void drawmenuh(void);
39 static void drawmenuv(void);
40 static void eprint(const char *errstr, ...);
41 static Bool grabkeyboard(void);
42 static void kpress(XKeyEvent * e);
43 static void match(char *pattern);
44 static void readstdin(void);
45 static void run(void);
46 static void setup(Bool topbar);
51 static char *maxname = NULL;
52 static char *prompt = NULL;
53 static char text[4096];
55 static int promptw = 0;
58 static unsigned int mw, mh;
59 static unsigned int numlockmask = 0;
60 static Bool running = True;
62 static Item *allitems = NULL; /* first of all items */
63 static Item *item = NULL; /* first of pattern matching items */
64 static Item *sel = NULL;
65 static Item *next = NULL;
66 static Item *prev = NULL;
67 static Item *curr = NULL;
68 static Window parent, win;
69 static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
70 static char *(*fstrstr)(const char *, const char *) = strstr;
71 static unsigned int lines = 0;
72 static void (*calcoffsets)(void) = calcoffsetsh;
77 appenditem(Item *i, Item **list, Item **last) {
93 w = promptw + cmdw + 2 * spaceitem;
94 for(next = curr; next && w < mw; next=next->right)
95 w += MIN(textw(next->text), mw / 3);
96 w = promptw + cmdw + 2 * spaceitem;
97 for(prev = curr; prev && prev->left && w < mw; prev=prev->left)
98 w += MIN(textw(prev->left->text), mw / 3);
107 h = (dc.font.height + 2) * lines;
108 for(next = curr; next && h > 0; next = next->right)
109 h -= dc.font.height + 2;
110 h = (dc.font.height + 2) * lines;
111 for(prev = curr; prev && prev->left && h > 0; prev = prev->left)
112 h -= dc.font.height + 2;
116 cistrstr(const char *s, const char *sub) {
122 if((c = tolower(*sub++)) != '\0') {
126 if((csub = *s++) == '\0')
129 while(tolower(csub) != c);
131 while(strncasecmp(s, sub, len) != 0);
140 XDestroyWindow(dpy, win);
141 XUngrabKeyboard(dpy, CurrentTime);
150 drawtext(NULL, dc.norm);
154 drawtext(prompt, dc.sel);
159 if(cmdw && item && lines == 0)
161 drawtext(*text ? text : NULL, dc.norm);
168 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
178 drawtext(curr->left ? "<" : NULL, dc.norm);
180 for(i = curr; i != next; i=i->right) {
181 dc.w = MIN(textw(i->text), mw / 3);
182 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
187 drawtext(next ? ">" : NULL, dc.norm);
195 dc.h = dc.font.height + 2;
197 for(i = curr; i != next; i=i->right) {
198 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
202 drawtext(NULL, dc.norm);
206 eprint(const char *errstr, ...) {
209 va_start(ap, errstr);
210 vfprintf(stderr, errstr, ap);
219 for(len = 1000; len; len--) {
220 if(XGrabKeyboard(dpy, parent, True, GrabModeAsync, GrabModeAsync, CurrentTime)
229 kpress(XKeyEvent * e) {
230 char buf[sizeof text];
236 num = XLookupString(e, buf, sizeof buf, &ksym, NULL);
237 if(ksym == XK_KP_Enter)
239 else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
240 ksym = (ksym - XK_KP_0) + XK_0;
241 else if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
242 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
243 || IsPrivateKeypadKey(ksym))
245 /* first check if a control mask is omitted */
246 if(e->state & ControlMask) {
247 switch(tolower(ksym)) {
288 while(i-- > 0 && text[i] == ' ');
289 while(i-- > 0 && text[i] != ' ');
294 execlp("dinput", "dinput", text, NULL); /* todo: argv */
295 eprint("dmenu: cannot exec dinput:");
301 num = MIN(num, sizeof text);
302 if(num && !iscntrl((int) buf[0])) {
303 memcpy(text + len, buf, num + 1);
311 for(i = 1; len - i > 0 && !IS_UTF8_1ST_CHAR(text[len - i]); i++);
321 while(sel && sel->right)
334 if(!sel || !sel->left)
337 if(sel->right == curr) {
355 if((e->state & ShiftMask) || !sel)
356 fprintf(stdout, "%s", text);
358 fprintf(stdout, "%s", sel->text);
364 if(!sel || !sel->right)
375 strncpy(text, sel->text, sizeof text);
383 match(char *pattern) {
385 Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
389 plen = strlen(pattern);
390 item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
391 for(i = allitems; i; i = i->next)
392 if(!fstrncmp(pattern, i->text, plen + 1))
393 appenditem(i, &lexact, &exactend);
394 else if(!fstrncmp(pattern, i->text, plen))
395 appenditem(i, &lprefix, &prefixend);
396 else if(fstrstr(i->text, pattern))
397 appenditem(i, &lsubstr, &substrend);
404 itemend->right = lprefix;
405 lprefix->left = itemend;
413 itemend->right = lsubstr;
414 lsubstr->left = itemend;
419 curr = prev = next = sel = item;
425 char *p, buf[sizeof text];
426 unsigned int len = 0, max = 0;
430 while(fgets(buf, sizeof buf, stdin)) {
432 if(buf[len-1] == '\n')
434 if(!(p = strdup(buf)))
435 eprint("dmenu: cannot strdup %u bytes\n", len);
436 if((max = MAX(max, len)) == len)
438 if(!(new = malloc(sizeof *new)))
439 eprint("dmenu: cannot malloc %u bytes\n", sizeof *new);
440 new->next = new->left = new->right = NULL;
454 /* main event loop */
455 while(running && !XNextEvent(dpy, &ev))
461 if(ev.xexpose.count == 0)
464 case VisibilityNotify:
465 if (ev.xvisibility.state != VisibilityUnobscured)
466 XRaiseWindow(dpy, win);
476 XineramaScreenInfo *info = NULL;
478 XModifierKeymap *modmap;
479 XSetWindowAttributes wa;
480 XWindowAttributes pwa;
482 /* init modifier map */
483 modmap = XGetModifierMapping(dpy);
484 for(i = 0; i < 8; i++)
485 for(j = 0; j < modmap->max_keypermod; j++) {
486 if(modmap->modifiermap[i * modmap->max_keypermod + j]
487 == XKeysymToKeycode(dpy, XK_Num_Lock))
488 numlockmask = (1 << i);
490 XFreeModifiermap(modmap);
493 dc.norm[ColBG] = getcolor(normbgcolor);
494 dc.norm[ColFG] = getcolor(normfgcolor);
495 dc.sel[ColBG] = getcolor(selbgcolor);
496 dc.sel[ColFG] = getcolor(selfgcolor);
500 wa.override_redirect = True;
501 wa.background_pixmap = ParentRelative;
502 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask | VisibilityChangeMask;
504 /* menu window geometry */
505 mh = (dc.font.height + 2) * (lines + 1);
507 if(parent == RootWindow(dpy, screen) && XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
513 if(XQueryPointer(dpy, parent, &dummy, &dummy, &x, &y, &di, &di, &dui))
514 for(i = 0; i < n; i++)
515 if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
519 y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
526 XGetWindowAttributes(dpy, parent, &pwa);
528 y = topbar ? 0 : pwa.height - mh;
532 win = XCreateWindow(dpy, parent, x, y, mw, mh, 0,
533 DefaultDepth(dpy, screen), CopyFromParent,
534 DefaultVisual(dpy, screen),
535 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
540 cmdw = MIN(textw(maxname), mw / 3);
542 promptw = MIN(textw(prompt), mw / 5);
545 XMapRaised(dpy, win);
549 main(int argc, char *argv[]) {
553 /* command line args */
554 for(i = 1; i < argc; i++)
555 if(!strcmp(argv[i], "-i")) {
556 fstrncmp = strncasecmp;
559 else if(!strcmp(argv[i], "-b"))
561 else if(!strcmp(argv[i], "-e")) {
562 if(++i < argc) parent = atoi(argv[i]);
564 else if(!strcmp(argv[i], "-l")) {
565 if(++i < argc) lines = atoi(argv[i]);
567 calcoffsets = calcoffsetsv;
569 else if(!strcmp(argv[i], "-fn")) {
570 if(++i < argc) font = argv[i];
572 else if(!strcmp(argv[i], "-nb")) {
573 if(++i < argc) normbgcolor = argv[i];
575 else if(!strcmp(argv[i], "-nf")) {
576 if(++i < argc) normfgcolor = argv[i];
578 else if(!strcmp(argv[i], "-p")) {
579 if(++i < argc) prompt = argv[i];
581 else if(!strcmp(argv[i], "-sb")) {
582 if(++i < argc) selbgcolor = argv[i];
584 else if(!strcmp(argv[i], "-sf")) {
585 if(++i < argc) selfgcolor = argv[i];
587 else if(!strcmp(argv[i], "-v"))
588 eprint("dmenu-"VERSION", © 2006-2010 dmenu engineers, see LICENSE for details\n");
590 eprint("usage: dmenu [-i] [-b] [-e <xid>] [-l <lines>] [-fn <font>] [-nb <color>]\n"
591 " [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
592 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
593 fprintf(stderr, "dmenu: warning: no locale support\n");
594 if(!(dpy = XOpenDisplay(NULL)))
595 eprint("dmenu: cannot open display\n");
596 screen = DefaultScreen(dpy);
598 parent = RootWindow(dpy, screen);
601 running = grabkeyboard();