1 /* See LICENSE file for copyright and license details. */
11 #include <X11/extensions/Xinerama.h>
15 #define INRECT(x,y,rx,ry,rw,rh) ((x) >= (rx) && (x) < (rx)+(rw) && (y) >= (ry) && (y) < (ry)+(rh))
16 #define MIN(a,b) ((a) < (b) ? (a) : (b))
17 #define MAX(a,b) ((a) > (b) ? (a) : (b))
18 #define UTF8_CODEPOINT(c) (((c) & 0xc0) != 0x80)
20 typedef struct Item Item;
23 Item *next; /* traverses all items */
24 Item *left, *right; /* traverses matching items */
27 static void appenditem(Item *item, Item **list, Item **last);
28 static void calcoffsets(void);
29 static char *cistrstr(const char *s, const char *sub);
30 static void drawmenu(void);
31 static void grabkeyboard(void);
32 static void insert(const char *s, ssize_t n);
33 static void keypress(XKeyEvent *ev);
34 static void match(void);
35 static void paste(void);
36 static void readstdin(void);
37 static void run(void);
38 static void setup(void);
39 static void usage(void);
41 static char text[4096];
42 static size_t cursor = 0;
43 static const char *prompt = NULL;
44 static const char *normbgcolor = "#cccccc";
45 static const char *normfgcolor = "#000000";
46 static const char *selbgcolor = "#0066ff";
47 static const char *selfgcolor = "#ffffff";
48 static unsigned int inputw = 0;
49 static unsigned int lines = 0;
50 static unsigned int mw, mh;
51 static unsigned int promptw;
52 static unsigned long normcol[ColLast];
53 static unsigned long selcol[ColLast];
55 static Bool topbar = True;
57 static Item *allitems, *matches;
58 static Item *curr, *prev, *next, *sel;
59 static Window root, win;
61 static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
62 static char *(*fstrstr)(const char *, const char *) = strstr;
65 appenditem(Item *item, Item **list, Item **last) {
69 (*last)->right = item;
79 h = dc->font.height+2;
83 n = mw - (promptw + inputw + textw(dc, "<") + textw(dc, ">"));
86 for(i = 0; next; next = next->right)
87 if((i += (lines > 0) ? h : MIN(textw(dc, next->text), mw/3)) > n)
89 for(i = 0; prev && prev->left; prev = prev->left)
90 if((i += (lines > 0) ? h : MIN(textw(dc, prev->left->text), mw/3)) > n)
95 cistrstr(const char *s, const char *sub) {
98 for(len = strlen(sub); *s; s++)
99 if(!strncasecmp(s, sub, len))
111 drawrect(dc, 0, 0, mw, mh, BG(dc, normcol));
112 dc->h = dc->font.height + 2;
113 dc->y = topbar ? 0 : mh - dc->h;
117 drawtext(dc, prompt, selcol);
120 dc->w = (lines > 0 || !matches) ? mw - dc->x : inputw;
121 drawtext(dc, text, normcol);
122 if((curpos = textnw(dc, text, cursor) + dc->h/2 - 2) < dc->w)
123 drawrect(dc, curpos, 2, 1, dc->h - 4, FG(dc, normcol));
126 dc->y = topbar ? dc->h : 0;
128 for(item = curr; item != next; item = item->right) {
129 drawtext(dc, item->text, (item == sel) ? selcol : normcol);
135 dc->w = textw(dc, "<");
137 drawtext(dc, "<", normcol);
138 for(item = curr; item != next; item = item->right) {
140 dc->w = MIN(textw(dc, item->text), mw/3);
141 drawtext(dc, item->text, (item == sel) ? selcol : normcol);
143 dc->w = textw(dc, ">");
146 drawtext(dc, ">", normcol);
155 for(i = 0; i < 1000; i++) {
156 if(!XGrabKeyboard(dc->dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime))
160 eprintf("cannot grab keyboard\n");
164 insert(const char *s, ssize_t n) {
165 memmove(text + cursor + n, text + cursor, sizeof text - cursor - n);
167 memcpy(text + cursor, s, n);
173 keypress(XKeyEvent *ev) {
180 XLookupString(ev, buf, sizeof buf, &ksym, NULL);
181 if(ev->state & ControlMask) {
182 switch(tolower(ksym)) {
212 case XK_k: /* delete right */
222 case XK_u: /* delete left */
223 insert(NULL, -cursor);
225 case XK_w: /* delete word */
229 while(cursor - n++ > 0 && text[cursor - n] == ' ');
230 while(cursor - n++ > 0 && text[cursor - n] != ' ');
233 case XK_y: /* paste selection */
234 XConvertSelection(dc->dpy, XA_PRIMARY, utf8, None, win, CurrentTime);
240 if(!iscntrl((int)*buf))
241 insert(buf, MIN(strlen(buf), sizeof text - cursor));
246 for(n = 1; cursor - n > 0 && !UTF8_CODEPOINT(text[cursor - n]); n++);
252 for(n = 1; cursor + n < len && !UTF8_CODEPOINT(text[cursor + n]); n++);
265 while(sel && sel->right)
275 sel = curr = matches;
279 if(cursor > 0 && (!sel || !sel->left || lines > 0)) {
280 while(cursor-- > 0 && !UTF8_CODEPOINT(text[cursor]));
286 if(!sel || !sel->left)
288 if((sel = sel->left)->right == curr) {
307 fputs((sel && !(ev->state & ShiftMask)) ? sel->text : text, stdout);
312 while(cursor++ < len && !UTF8_CODEPOINT(text[cursor]));
318 if(!sel || !sel->right)
320 if((sel = sel->right) == next) {
328 strncpy(text, sel->text, sizeof text);
329 cursor = strlen(text);
339 Item *item, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
342 matches = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
343 for(item = allitems; item; item = item->next)
344 if(!fstrncmp(text, item->text, len + 1))
345 appenditem(item, &lexact, &exactend);
346 else if(!fstrncmp(text, item->text, len))
347 appenditem(item, &lprefix, &prefixend);
348 else if(fstrstr(item->text, text))
349 appenditem(item, &lsubstr, &substrend);
356 itemend->right = lprefix;
357 lprefix->left = itemend;
365 itemend->right = lsubstr;
366 lsubstr->left = itemend;
371 curr = prev = next = sel = matches;
382 XGetWindowProperty(dc->dpy, win, utf8, 0, sizeof text - cursor, True,
383 utf8, &da, &di, &dl, &dl, (unsigned char **)&p);
384 insert(p, (q = strchr(p, '\n')) ? q-p : strlen(p));
391 char buf[sizeof text], *p;
395 for(item = NULL; fgets(buf, sizeof buf, stdin); item = new) {
396 if((p = strchr(buf, '\n')))
398 if(!(new = malloc(sizeof *new)))
399 eprintf("cannot malloc %u bytes\n", sizeof *new);
400 if(!(new->text = strdup(buf)))
401 eprintf("cannot strdup %u bytes\n", strlen(buf)+1);
402 inputw = MAX(inputw, textw(dc, new->text));
403 new->next = new->left = new->right = NULL;
415 while(!XNextEvent(dc->dpy, &ev))
418 if(ev.xexpose.count == 0)
424 case SelectionNotify:
425 if(ev.xselection.property == utf8)
428 case VisibilityNotify:
429 if(ev.xvisibility.state != VisibilityUnobscured)
430 XRaiseWindow(dc->dpy, win);
438 XSetWindowAttributes wa;
441 XineramaScreenInfo *info;
444 screen = DefaultScreen(dc->dpy);
445 root = RootWindow(dc->dpy, screen);
446 utf8 = XInternAtom(dc->dpy, "UTF8_STRING", False);
448 normcol[ColBG] = getcolor(dc, normbgcolor);
449 normcol[ColFG] = getcolor(dc, normfgcolor);
450 selcol[ColBG] = getcolor(dc, selbgcolor);
451 selcol[ColFG] = getcolor(dc, selfgcolor);
454 mh = (dc->font.height + 2) * (lines + 1);
456 if((info = XineramaQueryScreens(dc->dpy, &n))) {
461 XQueryPointer(dc->dpy, root, &dw, &dw, &x, &y, &di, &di, &du);
462 for(i = 0; i < n; i++)
463 if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
466 y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
474 y = topbar ? 0 : DisplayHeight(dc->dpy, screen) - mh;
475 mw = DisplayWidth(dc->dpy, screen);
478 wa.override_redirect = True;
479 wa.background_pixmap = ParentRelative;
480 wa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
481 win = XCreateWindow(dc->dpy, root, x, y, mw, mh, 0,
482 DefaultDepth(dc->dpy, screen), CopyFromParent,
483 DefaultVisual(dc->dpy, screen),
484 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
487 setcanvas(dc, mw, mh);
488 inputw = MIN(inputw, mw/3);
489 promptw = prompt ? MIN(textw(dc, prompt), mw/5) : 0;
490 XMapRaised(dc->dpy, win);
497 fputs("usage: dmenu [-b] [-i] [-l lines] [-p prompt] [-fn font] [-nb color]\n"
498 " [-nf color] [-sb color] [-sf color] [-v]\n", stderr);
503 main(int argc, char *argv[]) {
509 for(i = 1; i < argc; i++)
511 if(!strcmp(argv[i], "-v")) {
512 fputs("dmenu-"VERSION", © 2006-2010 dmenu engineers, see LICENSE for details\n", stdout);
515 else if(!strcmp(argv[i], "-b"))
517 else if(!strcmp(argv[i], "-i")) {
518 fstrncmp = strncasecmp;
524 else if(!strcmp(argv[i], "-l"))
525 lines = atoi(argv[++i]);
526 else if(!strcmp(argv[i], "-p"))
528 else if(!strcmp(argv[i], "-fn"))
529 initfont(dc, argv[++i]);
530 else if(!strcmp(argv[i], "-nb"))
531 normbgcolor = argv[++i];
532 else if(!strcmp(argv[i], "-nf"))
533 normfgcolor = argv[++i];
534 else if(!strcmp(argv[i], "-sb"))
535 selbgcolor = argv[++i];
536 else if(!strcmp(argv[i], "-sf"))
537 selfgcolor = argv[++i];
545 return EXIT_FAILURE; /* should not reach */