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))
24 enum { ColFG, ColBG, ColLast };
29 unsigned long norm[ColLast];
30 unsigned long sel[ColLast];
40 } DC; /* draw context */
42 typedef struct Item Item;
45 Item *next; /* traverses all items */
46 Item *left, *right; /* traverses items matching current search pattern */
49 /* forward declarations */
50 static void appenditem(Item *i, Item **list, Item **last);
51 static void calcoffsetsh(void);
52 static void calcoffsetsv(void);
53 static char *cistrstr(const char *s, const char *sub);
54 static void cleanup(void);
55 static void drawmenuh(void);
56 static void drawmenuv(void);
57 static void drawtext(const char *text, unsigned long col[ColLast]);
58 static void eprint(const char *errstr, ...);
59 static unsigned long getcolor(const char *colstr);
60 static Bool grabkeyboard(void);
61 static void initfont(const char *fontstr);
62 static void kpress(XKeyEvent * e);
63 static void match(char *pattern);
64 static void readstdin(void);
65 static void run(void);
66 static void setup(Bool topbar);
67 static int textnw(const char *text, unsigned int len);
68 static int textw(const char *text);
73 static char *maxname = NULL;
74 static char *prompt = NULL;
75 static char text[4096];
77 static int promptw = 0;
79 static int cursor = 0;
81 static unsigned int mw, mh;
82 static unsigned int numlockmask = 0;
83 static Bool running = True;
86 static Item *allitems = NULL; /* first of all items */
87 static Item *item = NULL; /* first of pattern matching items */
88 static Item *sel = NULL;
89 static Item *next = NULL;
90 static Item *prev = NULL;
91 static Item *curr = NULL;
92 static Window root, win;
93 static int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
94 static char *(*fstrstr)(const char *, const char *) = strstr;
95 static Bool vlist = False;
96 static unsigned int lines = 5;
97 static void (*calcoffsets)(void) = calcoffsetsh;
98 static void (*drawmenu)(void) = drawmenuh;
101 appenditem(Item *i, Item **list, Item **last) {
118 w = promptw + cmdw + 2 * spaceitem;
119 for(next = curr; next; next=next->right) {
120 tw = textw(next->text);
127 w = promptw + cmdw + 2 * spaceitem;
128 for(prev = curr; prev && prev->left; prev=prev->left) {
129 tw = textw(prev->left->text);
140 static unsigned int w;
144 w = (dc.font.height + 2) * (lines + 1);
145 for(next = curr; next; next=next->right) {
146 w -= dc.font.height + 2;
150 w = (dc.font.height + 2) * (lines + 1);
151 for(prev = curr; prev && prev->left; prev=prev->left) {
152 w -= dc.font.height + 2;
159 cistrstr(const char *s, const char *sub) {
165 if((c = *sub++) != 0) {
170 if((csub = *s++) == 0)
173 while(tolower(csub) != c);
175 while(strncasecmp(s, sub, len) != 0);
186 itm = allitems->next;
187 free(allitems->text);
192 XFreeFontSet(dpy, dc.font.set);
194 XFreeFont(dpy, dc.font.xfont);
195 XFreePixmap(dpy, dc.drawable);
197 XDestroyWindow(dpy, win);
198 XUngrabKeyboard(dpy, CurrentTime);
203 XRectangle r = { dc.x, dc.y + 2, 1, dc.h - 4 };
205 r.x += textnw(text, cursor) + dc.font.height / 2;
207 XSetForeground(dpy, dc.gc, dc.norm[ColFG]);
208 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
219 drawtext(NULL, dc.norm);
223 drawtext(prompt, dc.sel);
230 drawtext(text[0] ? text : NULL, dc.norm);
235 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
237 /* determine maximum items */
238 for(i = curr; i != next; i=i->right) {
239 dc.w = textw(i->text);
242 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
245 dc.x = mw - spaceitem;
247 drawtext(next ? ">" : NULL, dc.norm);
249 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
261 drawtext(NULL, dc.norm);
265 drawtext(prompt, dc.sel);
270 drawtext(text[0] ? text : NULL, dc.norm);
274 dc.y += dc.font.height + 2;
275 /* determine maximum items */
276 for(i = curr; i != next; i=i->right) {
277 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
278 dc.y += dc.font.height + 2;
280 drawtext(NULL, dc.norm);
282 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
287 drawtext(const char *text, unsigned long col[ColLast]) {
289 int i, x, y, h, len, olen;
290 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
292 XSetForeground(dpy, dc.gc, col[ColBG]);
293 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
298 y = dc.y + ((h+2) / 2) - (h / 2) + dc.font.ascent;
300 /* shorten text if necessary */
301 for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
304 memcpy(buf, text, len);
306 for(i = len; i && i > len - 3; buf[--i] = '.');
307 XSetForeground(dpy, dc.gc, col[ColFG]);
309 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
311 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
315 eprint(const char *errstr, ...) {
318 va_start(ap, errstr);
319 vfprintf(stderr, errstr, ap);
325 getcolor(const char *colstr) {
326 Colormap cmap = DefaultColormap(dpy, screen);
329 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
330 eprint("error, cannot allocate color '%s'\n", colstr);
338 for(len = 1000; len; len--) {
339 if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
348 initfont(const char *fontstr) {
349 char *def, **missing;
352 if(!fontstr || fontstr[0] == '\0')
353 eprint("error, cannot load font: '%s'\n", fontstr);
355 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
357 XFreeStringList(missing);
359 XFontSetExtents *font_extents;
360 XFontStruct **xfonts;
362 dc.font.ascent = dc.font.descent = 0;
363 font_extents = XExtentsOfFontSet(dc.font.set);
364 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
365 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
366 if(dc.font.ascent < (*xfonts)->ascent)
367 dc.font.ascent = (*xfonts)->ascent;
368 if(dc.font.descent < (*xfonts)->descent)
369 dc.font.descent = (*xfonts)->descent;
374 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
375 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
376 eprint("error, cannot load font: '%s'\n", fontstr);
377 dc.font.ascent = dc.font.xfont->ascent;
378 dc.font.descent = dc.font.xfont->descent;
380 dc.font.height = dc.font.ascent + dc.font.descent;
384 kpress(XKeyEvent * e) {
392 num = XLookupString(e, buf, sizeof buf, &ksym, NULL);
393 if(IsKeypadKey(ksym)) {
394 if(ksym == XK_KP_Enter)
396 else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
397 ksym = (ksym - XK_KP_0) + XK_0;
399 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
400 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
401 || IsPrivateKeypadKey(ksym))
403 /* first check if a control mask is omitted */
404 if(e->state & ControlMask) {
406 default: /* ignore other control sequences */
433 while(i >= 0 && text[i] == ' ')
435 while(i >= 0 && text[i] != ' ')
443 if(CLEANMASK(e->state) & Mod1Mask) {
468 if(!(fp = (FILE*)popen("sselp", "r")))
469 eprint("dmenu: Could not popen sselp\n");
470 c = fgets(text + len, sizeof(text) - len, fp);
476 if(len && text[len-1] == '\n')
485 if(num && !iscntrl((int) buf[0])) {
487 memmove(text + cursor + num, text + cursor, sizeof text - cursor);
488 strncpy(text + cursor, buf, sizeof text - cursor);
495 memmove(text + cursor + -1, text + cursor, sizeof text - cursor);
507 while(sel && sel->right)
522 if(sel && sel->left){
524 if(sel->right == curr) {
547 if((e->state & ShiftMask) && *text)
548 fprintf(stdout, "%s", text);
550 fprintf(stdout, "%s", sel->text);
552 fprintf(stdout, "%s", text);
560 else if(sel && sel->right) {
573 strncpy(text, sel->text, sizeof text);
574 cursor = strlen(text);
579 cursor = MIN(cursor, len);
580 cursor = MAX(cursor, 0);
585 match(char *pattern) {
587 Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
591 plen = strlen(pattern);
592 item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
593 for(i = allitems; i; i = i->next)
594 if(!fstrncmp(pattern, i->text, plen + 1))
595 appenditem(i, &lexact, &exactend);
596 else if(!fstrncmp(pattern, i->text, plen))
597 appenditem(i, &lprefix, &prefixend);
598 else if(fstrstr(i->text, pattern))
599 appenditem(i, &lsubstr, &substrend);
606 itemend->right = lprefix;
607 lprefix->left = itemend;
615 itemend->right = lsubstr;
616 lsubstr->left = itemend;
621 curr = prev = next = sel = item;
628 unsigned int len = 0, max = 0;
632 while(fgets(buf, sizeof buf, stdin)) {
634 if (buf[len - 1] == '\n')
636 if(!(p = strdup(buf)))
637 eprint("fatal: could not strdup() %u bytes\n", strlen(buf));
642 if(!(new = (Item *)malloc(sizeof(Item))))
643 eprint("fatal: could not malloc() %u bytes\n", sizeof(Item));
644 new->next = new->left = new->right = NULL;
658 /* main event loop */
659 while(running && !XNextEvent(dpy, &ev))
661 default: /* ignore all crap */
667 if(ev.xexpose.count == 0)
678 XineramaScreenInfo *info = NULL;
680 XModifierKeymap *modmap;
681 XSetWindowAttributes wa;
683 /* init modifier map */
684 modmap = XGetModifierMapping(dpy);
685 for(i = 0; i < 8; i++)
686 for(j = 0; j < modmap->max_keypermod; j++) {
687 if(modmap->modifiermap[i * modmap->max_keypermod + j]
688 == XKeysymToKeycode(dpy, XK_Num_Lock))
689 numlockmask = (1 << i);
691 XFreeModifiermap(modmap);
694 dc.norm[ColBG] = getcolor(normbgcolor);
695 dc.norm[ColFG] = getcolor(normfgcolor);
696 dc.sel[ColBG] = getcolor(selbgcolor);
697 dc.sel[ColFG] = getcolor(selfgcolor);
701 wa.override_redirect = True;
702 wa.background_pixmap = ParentRelative;
703 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
705 /* menu window geometry */
706 mh = dc.font.height + 2;
707 mh = vlist ? mh * (lines+1) : mh;
709 if(XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
715 if(XQueryPointer(dpy, root, &dummy, &dummy, &x, &y, &di, &di, &dui))
716 for(i = 0; i < n; i++)
717 if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
721 y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
729 y = topbar ? 0 : DisplayHeight(dpy, screen) - mh;
730 mw = DisplayWidth(dpy, screen);
733 win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
734 DefaultDepth(dpy, screen), CopyFromParent,
735 DefaultVisual(dpy, screen),
736 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
739 dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
740 dc.gc = XCreateGC(dpy, root, 0, NULL);
741 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
743 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
745 cmdw = textw(maxname);
749 promptw = textw(prompt);
754 XMapRaised(dpy, win);
758 textnw(const char *text, unsigned int len) {
762 XmbTextExtents(dc.font.set, text, len, NULL, &r);
765 return XTextWidth(dc.font.xfont, text, len);
769 textw(const char *text) {
770 return textnw(text, strlen(text)) + dc.font.height;
774 main(int argc, char *argv[]) {
778 /* command line args */
779 for(i = 1; i < argc; i++)
780 if(!strcmp(argv[i], "-i")) {
781 fstrncmp = strncasecmp;
784 else if(!strcmp(argv[i], "-b"))
786 else if(!strcmp(argv[i], "-l")) {
788 calcoffsets = calcoffsetsv;
789 drawmenu = drawmenuv;
790 if(++i < argc) lines += atoi(argv[i]);
792 else if(!strcmp(argv[i], "-fn")) {
793 if(++i < argc) font = argv[i];
795 else if(!strcmp(argv[i], "-nb")) {
796 if(++i < argc) normbgcolor = argv[i];
798 else if(!strcmp(argv[i], "-nf")) {
799 if(++i < argc) normfgcolor = argv[i];
801 else if(!strcmp(argv[i], "-p")) {
802 if(++i < argc) prompt = argv[i];
804 else if(!strcmp(argv[i], "-sb")) {
805 if(++i < argc) selbgcolor = argv[i];
807 else if(!strcmp(argv[i], "-sf")) {
808 if(++i < argc) selfgcolor = argv[i];
810 else if(!strcmp(argv[i], "-v"))
811 eprint("dmenu-"VERSION", © 2006-2009 dmenu engineers, see LICENSE for details\n");
813 eprint("usage: dmenu [-i] [-b] [-l <lines>] [-fn <font>] [-nb <color>] [-nf <color>]\n"
814 " [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
815 if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
816 fprintf(stderr, "warning: no locale support\n");
817 if(!(dpy = XOpenDisplay(NULL)))
818 eprint("dmenu: cannot open display\n");
819 screen = DefaultScreen(dpy);
820 root = RootWindow(dpy, screen);
822 if(isatty(STDIN_FILENO)) {
824 running = grabkeyboard();
826 else { /* prevent keypress loss */
827 running = grabkeyboard();