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refs/heads/trunk:/dmenu.c
 /* See LICENSE file for copyright and license details. */
 #include <ctype.h>
 #include <fcntl.h>
 #include <locale.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <strings.h>
 #include <time.h>
 #include <unistd.h>

 #include <sys/select.h>
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>
 #include <X11/Xutil.h>
 #ifdef XINERAMA
 #include <X11/extensions/Xinerama.h>
 #endif
 #include <X11/Xft/Xft.h>

 #include "drw.h"
 #include "util.h"

 /* macros */
 #define INTERSECT(x,y,w,h,r)  (MAX(0, MIN((x)+(w),(r).x_org+(r).width)  - MAX((x),(r).x_org)) \
                             && MAX(0, MIN((y)+(h),(r).y_org+(r).height) - MAX((y),(r).y_org)))
 #define LENGTH(X)             (sizeof X / sizeof X[0])
 #define TEXTW(X)              (drw_fontset_getwidth(drw, (X)) + lrpad)

 /* enums */
 enum { SchemeNorm, SchemeSel, SchemeOut, SchemeLast }; /* color schemes */

 struct item {
 	char *text;
 	struct item *left, *right;
 	struct item *next;
 	int out;
 };

 static char text[BUFSIZ] = "";
 static char *embed;
 static int bh, mw, mh;
 static int inputw = 0, promptw;
 static int lrpad; /* sum of left and right padding */
 static size_t cursor;
 static struct item *items = NULL;
 static struct item *matches, *matchend;
 static struct item *prev, *curr, *next, *sel;
 static int mon = -1, screen;

 static Atom clip, utf8;
 static Display *dpy;
 static Window root, parentwin, win;
 static XIC xic;

 static Drw *drw;
 static Clr *scheme[SchemeLast];

 #include "config.h"

 static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
 static char *(*fstrstr)(const char *, const char *) = strstr;

 static void
 appenditem(struct item *item, struct item **list, struct item **last)
 {
 	if (*last)
 		(*last)->right = item;
 	else
 		*list = item;

 	item->left = *last;
 	item->right = NULL;
 	*last = item;
 }

 static void
 calcoffsets(void)
 {
 	int i, n;

 	if (lines > 0)
 		n = lines * bh;
 	else
 		n = mw - (promptw + inputw + TEXTW("<") + TEXTW(">"));
 	/* calculate which items will begin the next page and previous page */
 	for (i = 0, next = curr; next; next = next->right)
 		if ((i += (lines > 0) ? bh : MIN(TEXTW(next->text), n)) > n)
 			break;
 	for (i = 0, prev = curr; prev && prev->left; prev = prev->left)
 		if ((i += (lines > 0) ? bh : MIN(TEXTW(prev->left->text), n)) > n)
 			break;
 }

 static void
 cleanup(void)
 {
 	size_t i;

 	XUngrabKey(dpy, AnyKey, AnyModifier, root);
 	for (i = 0; i < SchemeLast; i++)
 		free(scheme[i]);
 	drw_free(drw);
 	XSync(dpy, False);
 	XCloseDisplay(dpy);
 }

 static char *
 cistrstr(const char *s, const char *sub)
 {
 	size_t len;

 	for (len = strlen(sub); *s; s++)
 		if (!strncasecmp(s, sub, len))
 			return (char *)s;
 	return NULL;
 }

 static int
 drawitem(struct item *item, int x, int y, int w)
 {
 	if (item == sel)
 		drw_setscheme(drw, scheme[SchemeSel]);
 	else if (item->out)
 		drw_setscheme(drw, scheme[SchemeOut]);
 	else
 		drw_setscheme(drw, scheme[SchemeNorm]);

 	return drw_text(drw, x, y, w, bh, lrpad / 2, item->text, 0);
 }

 static void
 drawmenu(void)
 {
 	unsigned int curpos;
 	struct item *item;
 	int x = 0, y = 0, w;

 	drw_setscheme(drw, scheme[SchemeNorm]);
 	drw_rect(drw, 0, 0, mw, mh, 1, 1);

 	if (prompt && *prompt) {
 		drw_setscheme(drw, scheme[SchemeSel]);
 		x = drw_text(drw, x, 0, promptw, bh, lrpad / 2, prompt, 0);
 	}
 	/* draw input field */
 	w = (lines > 0 || !matches) ? mw - x : inputw;
 	drw_setscheme(drw, scheme[SchemeNorm]);
 	drw_text(drw, x, 0, w, bh, lrpad / 2, text, 0);

 	curpos = TEXTW(text) - TEXTW(&text[cursor]);
 	if ((curpos += lrpad / 2 - 1) < w) {
 		drw_setscheme(drw, scheme[SchemeNorm]);
 		drw_rect(drw, x + curpos, 2, 2, bh - 4, 1, 0);
 	}

 	if (lines > 0) {
 		/* draw vertical list */
 		for (item = curr; item != next; item = item->right)
 			drawitem(item, x, y += bh, mw - x);
 	} else if (matches) {
 		/* draw horizontal list */
 		x += inputw;
 		w = TEXTW("<");
 		if (curr->left) {
 			drw_setscheme(drw, scheme[SchemeNorm]);
 			drw_text(drw, x, 0, w, bh, lrpad / 2, "<", 0);
 		}
 		x += w;
 		for (item = curr; item != next; item = item->right)
 			x = drawitem(item, x, 0, MIN(TEXTW(item->text), mw - x - TEXTW(">")));
 		if (next) {
 			w = TEXTW(">");
 			drw_setscheme(drw, scheme[SchemeNorm]);
 			drw_text(drw, mw - w, 0, w, bh, lrpad / 2, ">", 0);
 		}
 	}
 	drw_map(drw, win, 0, 0, mw, mh);
 	XFlush(dpy);
 }

 static void
 grabfocus(void)
 {
 	struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000  };
 	Window focuswin;
 	int i, revertwin;

 	for (i = 0; i < 100; ++i) {
 		XGetInputFocus(dpy, &focuswin, &revertwin);
 		if (focuswin == win)
 			return;
 		XSetInputFocus(dpy, win, RevertToParent, CurrentTime);
 		nanosleep(&ts, NULL);
 	}
 	die("cannot grab focus");
 }

 static void
 grabkeyboard(void)
 {
 	struct timespec ts = { .tv_sec = 0, .tv_nsec = 1000000  };
 	int i;

 	if (embed)
 		return;
 	/* try to grab keyboard, we may have to wait for another process to ungrab */
 	for (i = 0; i < 1000; i++) {
 		if (XGrabKeyboard(dpy, DefaultRootWindow(dpy), True, GrabModeAsync,
 		                  GrabModeAsync, CurrentTime) == GrabSuccess)
 			return;
 		nanosleep(&ts, NULL);
 	}
 	die("cannot grab keyboard");
 }

 static void
 match(void)
 {
 	static char **tokv = NULL;
 	static int tokn = 0;

 	char buf[sizeof text], *s;
 	int i, tokc = 0;
 	size_t len, textsize;
 	struct item *item, *lprefix, *lsubstr, *prefixend, *substrend;
 	int preserve = 0;

 	strcpy(buf, text);
 	/* separate input text into tokens to be matched individually */
 	for (s = strtok(buf, " "); s; tokv[tokc - 1] = s, s = strtok(NULL, " "))
 		if (++tokc > tokn && !(tokv = realloc(tokv, ++tokn * sizeof *tokv)))
 			die("cannot realloc %u bytes:", tokn * sizeof *tokv);
 	len = tokc ? strlen(tokv[0]) : 0;

 	matches = lprefix = lsubstr = matchend = prefixend = substrend = NULL;
 	textsize = strlen(text) + 1;
 	for (item = items; item; item = item->next) {
 		for (i = 0; i < tokc; i++)
 			if (!fstrstr(item->text, tokv[i]))
 				break;
 		if (i != tokc) /* not all tokens match */
 			continue;
 		/* exact matches go first, then prefixes, then substrings */
 		if (!tokc || !fstrncmp(text, item->text, textsize)) {
 			appenditem(item, &matches, &matchend);
 			if (sel == item) preserve = 1;
 		} else if (!fstrncmp(tokv[0], item->text, len)) {
 			appenditem(item, &lprefix, &prefixend);
 			if (sel == item) preserve = 1;
 		} else {
 			appenditem(item, &lsubstr, &substrend);
 			if (sel == item) preserve = 1;
 		}
 	}
 	if (lprefix) {
 		if (matches) {
 			matchend->right = lprefix;
 			lprefix->left = matchend;
 		} else
 			matches = lprefix;
 		matchend = prefixend;
 	}
 	if (lsubstr) {
 		if (matches) {
 			matchend->right = lsubstr;
 			lsubstr->left = matchend;
 		} else
 			matches = lsubstr;
 		matchend = substrend;
 	}
 	if (!preserve)
 		curr = sel = matches;

 	calcoffsets();
 }

 static void
 insert(const char *str, ssize_t n)
 {
 	if (strlen(text) + n > sizeof text - 1)
 		return;
 	/* move existing text out of the way, insert new text, and update cursor */
 	memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0));
 	if (n > 0)
 		memcpy(&text[cursor], str, n);
 	cursor += n;
 	match();
 }

 static size_t
 nextrune(int inc)
 {
 	ssize_t n;

 	/* return location of next utf8 rune in the given direction (+1 or -1) */
 	for (n = cursor + inc; n + inc >= 0 && (text[n] & 0xc0) == 0x80; n += inc)
 		;
 	return n;
 }

 static void
 movewordedge(int dir)
 {
 	if (dir < 0) { /* move cursor to the start of the word*/
 		while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)]))
 			cursor = nextrune(-1);
 		while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)]))
 			cursor = nextrune(-1);
 	} else { /* move cursor to the end of the word */
 		while (text[cursor] && strchr(worddelimiters, text[cursor]))
 			cursor = nextrune(+1);
 		while (text[cursor] && !strchr(worddelimiters, text[cursor]))
 			cursor = nextrune(+1);
 	}
 }

 static void setup(void);

 static void
 buttonpress(XButtonEvent *ev) {
 	switch(ev->button) {
 		case 1:
 			puts((sel && !(ev->state & ShiftMask)) ? sel->text : text);
 			if(!(ev->state & ControlMask)) {
 				cleanup();
 				exit(0);
 			}
 			if(sel)
 				sel->out = 1;
 			break;
 		case 3:
 		case 2:
 			cleanup();
 			exit(1);
 			break;
 		case 4:
 			//scroll up
 			if (sel && sel->left && (sel = sel->left)->right == curr) {
 				curr = prev;
 				calcoffsets();
 			}
 			break;
 		case 5:
 			//scroll down
 			if (sel && sel->right && (sel = sel->right) == next) {
 				curr = next;
 				calcoffsets();
 			}
 			break;
 		default:
 			break;
 	}
 	drawmenu();
 }

 static void
 keypress(XKeyEvent *ev)
 {
 	char buf[32];
 	int len;
 	KeySym ksym;
 	Status status;
 	//if( ! ev ) {
 	//	printf("shit fuck\n");
 	//	exit(1);
 	//}
 	//if( ! xic) {//why does this not work?
 	//	printf("shit fuck 2\n");
 	//	exit(1);
 	//}
 	// this is the ONLY place that xic is used.
 	// setting xic is the only use of xim
 	len = XmbLookupString(xic, ev, buf, sizeof buf, &ksym, &status);
 	switch (status) {
 	default: /* XLookupNone, XBufferOverflow */
 		return;
 	case XLookupChars:
 		goto insert;
 	case XLookupKeySym:
 	case XLookupBoth:
 		break;
 	}

 	if (ev->state & ControlMask) {
 		switch(ksym) {
 		case XK_a: ksym = XK_Home;      break;
 		case XK_b: ksym = XK_Left;      break;
 		case XK_c: ksym = XK_Escape;    break;
 		case XK_d: ksym = XK_Delete;    break;
 		case XK_e: ksym = XK_End;       break;
 		case XK_f: ksym = XK_Right;     break;
 		case XK_g: ksym = XK_Escape;    break;
 		case XK_h: ksym = XK_BackSpace; break;
 		case XK_i: ksym = XK_Tab;       break;
 		case XK_j: /* fallthrough */
 		case XK_J: /* fallthrough */
 		case XK_m: /* fallthrough */
 		case XK_M: ksym = XK_Return; ev->state &= ~ControlMask; break;
 		case XK_n: ksym = XK_Down;      break;
 		case XK_p: ksym = XK_Up;        break;

 		case XK_k: /* delete right */
 			text[cursor] = '\0';
 			match();
 			break;
 		case XK_u: /* delete left */
 			insert(NULL, 0 - cursor);
 			break;
 		case XK_w: /* delete word */
 			while (cursor > 0 && strchr(worddelimiters, text[nextrune(-1)]))
 				insert(NULL, nextrune(-1) - cursor);
 			while (cursor > 0 && !strchr(worddelimiters, text[nextrune(-1)]))
 				insert(NULL, nextrune(-1) - cursor);
 			break;
 		case XK_y: /* paste selection */
 		case XK_Y:
 			XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY,
 			                  utf8, utf8, win, CurrentTime);
 			return;
 		case XK_Left:
 			movewordedge(-1);
 			goto draw;
 		case XK_Right:
 			movewordedge(+1);
 			goto draw;
 		case XK_Return:
 		case XK_KP_Enter:
 			break;
 		case XK_bracketleft:
 			cleanup();
 			exit(1);
 		default:
 			return;
 		}
 	} else if (ev->state & Mod1Mask) {
 		switch(ksym) {
 		case XK_b:
 			movewordedge(-1);
 			goto draw;
 		case XK_f:
 			movewordedge(+1);
 			goto draw;
 		case XK_g: ksym = XK_Home;  break;
 		case XK_G: ksym = XK_End;   break;
 		case XK_h: ksym = XK_Up;    break;
 		case XK_j: ksym = XK_Next;  break;
 		case XK_k: ksym = XK_Prior; break;
 		case XK_l: ksym = XK_Down;  break;
 		default:
 			return;
 		}
 	}

 	switch(ksym) {
 	default:
 insert:
 		if (!iscntrl(*buf))
 			insert(buf, len);
 		break;
 	case XK_Delete:
 		if (text[cursor] == '\0')
 			return;
 		cursor = nextrune(+1);
 		/* fallthrough */
 	case XK_BackSpace:
 		if (cursor == 0)
 			return;
 		insert(NULL, nextrune(-1) - cursor);
 		break;
 	case XK_Escape:
 		cleanup();
 		exit(1);
 	case XK_Left:
 		if (cursor > 0 && (!sel || !sel->left || lines > 0)) {
 			cursor = nextrune(-1);
 			break;
 		}
 		if (lines > 0)
 			return;
 		/* fallthrough */
 	case XK_Up:
 		if (sel && sel->left && (sel = sel->left)->right == curr) {
 			curr = prev;
 			calcoffsets();
 		}
 		break;
 	case XK_Next:
 		if (!next)
 			while(sel->right) sel=sel->right;
 		else
 			sel = curr = next;
 		calcoffsets();
 		break;
 	case XK_End:
 		if (text[cursor] != '\0') {
 			cursor = strlen(text);
 			break;
 		}
 		if (next) {
 			/* jump to end of list and position items in reverse */
 			curr = matchend;
 			calcoffsets();
 			curr = prev;
 			calcoffsets();
 			while (next && (curr = curr->right))
 				calcoffsets();
 		}
 		sel = curr = matchend;
 		break;
 	case XK_Prior:
 		if (prev) {
 			sel = curr = prev;
 			calcoffsets();
 			break;
 		}
 		sel = curr = matches;
 		calcoffsets();
 		break;
 	case XK_Home:
 		if (sel == matches) {
 			cursor = 0;
 			break;
 		}
 		sel = curr = matches;
 		calcoffsets();
 		break;

 	case XK_Return:
 	case XK_KP_Enter:
 		puts((sel && !(ev->state & ShiftMask)) ? sel->text : text);
 		if (!(ev->state & ControlMask)) {
 			cleanup();
 			exit(0);
 		}
 		if (sel)
 			sel->out = 1;
 		break;
 	case XK_Right:
 		if (text[cursor] != '\0') {
 			cursor = nextrune(+1);
 			break;
 		}
 		if (lines > 0)
 			return;
 		/* fallthrough */
 	case XK_Down:
 		if (sel && sel->right && (sel = sel->right) == next) {
 			curr = next;
 			calcoffsets();
 		}
 		break;
 	case XK_Tab:
 		if (!sel)
 			return;
 		strncpy(text, sel->text, sizeof text - 1);
 		text[sizeof text - 1] = '\0';
 		cursor = strlen(text);
 		match();
 		break;
 	}

 draw:
 	drawmenu();
 }

 static void
 paste(void)
 {
 	char *p, *q;
 	int di;
 	unsigned long dl;
 	Atom da;

 	/* we have been given the current selection, now insert it into input */
 	if (XGetWindowProperty(dpy, win, utf8, 0, (sizeof text / 4) + 1, False,
 	                   utf8, &da, &di, &dl, &dl, (unsigned char **)&p)
 	    == Success && p) {
 		insert(p, (q = strchr(p, '\n')) ? q - p : (ssize_t)strlen(p));
 		XFree(p);
 	}
 	drawmenu();
 }

 static void
 readevent(void)
 {
 	XEvent ev;

 	while (XPending(dpy) && !XNextEvent(dpy, &ev)) {
 		if (XFilterEvent(&ev, None))
 			continue;
 		switch(ev.type) {
 		case Expose:
 			if (ev.xexpose.count == 0)
 				drw_map(drw, win, 0, 0, mw, mh);
 			break;
 		case FocusIn:
 			/* regrab focus from parent window */
 			if (ev.xfocus.window != win)
 				grabfocus();
 			break;
 		case KeyPress:
 			keypress(&ev.xkey);
 			break;
 		case ButtonPress:
 			buttonpress(&ev.xbutton);
 			break;
 		case SelectionNotify:
 			if (ev.xselection.property == utf8)
 				paste();
 			break;
 		case VisibilityNotify:
 			if (ev.xvisibility.state != VisibilityUnobscured)
 				XRaiseWindow(dpy, win);
 			break;
 		}
 	}
 }

 static int
 readstdin(void)
 {
 	static size_t max = 0;
 	static struct item **end = &items;

 	char buf[sizeof text], *p, *maxstr;
 	struct item *item;

 	/* read each line from stdin and add it to the item list */
 	if (fgets(buf, sizeof buf, stdin)) {
 		if (!(item = malloc(sizeof *item)))
 			die("cannot malloc %u bytes:", sizeof *item);
 		if ((p = strchr(buf, '\n')))
 			*p = '\0';
 		if (!(item->text = strdup(buf)))
 			die("cannot strdup %u bytes:", strlen(buf)+1);
 		if (strlen(item->text) > max) {
 			max = strlen(maxstr = item->text);
 			inputw = maxstr ? TEXTW(maxstr) : 0;
 		}
 		*end = item;
 		end = &item->next;
 		item->next = NULL;
 		item->out = 0;
 		return 1;
 	} else {//don't bother with these unless we're at EOF. events will cause them to trigger too
 		match();
 		drawmenu();
 		return 0;
 	}
 }

 static void update_prompt(char *orig_prompt,int lines_read,int done_reading) {
 	static int spin=0;
 	//char spinner[]="/-\\|!";
 	//wchar_t spinner[]=L"⠏⠛⠹⢸⣰⣤⣆⡇-"; //each of these is actually three bytes.
 	wchar_t spinner[]=L"⠏⠀⠋⠁⠉⠉⠈⠙⠀⠹⠀⢸⠀⣰⢀⣠⣀⣀⣄⡀⣆⠀⡇⠀/\\";
 	if(done_reading) {
 		spin=24;
 	} else {
 		spin+=2;
 		spin%=24;
 	}
 	//snprintf(prompt,1024,"%s %c %d",orig_prompt,spinner[spin],lines_read);
 	snprintf(prompt,1024,"%s %lc %d",orig_prompt,spinner[spin],lines_read);
 	snprintf(prompt,1024,"%s %lc%lc %d",orig_prompt,spinner[spin],spinner[spin+1],lines_read);
 	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
 }

 static void
 run(void)
 {
 	fd_set fds;
 	int flags, xfd = XConnectionNumber(dpy);

 	if ((flags = fcntl(0, F_GETFL)) == -1)
 		die("cannot get stdin control flags:");
 	if (fcntl(0, F_SETFL, flags | O_NONBLOCK) == -1)
 		die("cannot set stdin control flags:");
 	char *orig_prompt=NULL;
 	time_t old_time=0,curr_time;
 	int lines_read=0;
 	int done_reading=0;
 	struct timeval timeout;
 	if(prompt) {
 		orig_prompt = prompt;
 		prompt = malloc(1024);//I dunno
 		strcpy(prompt,orig_prompt);
 	} else {
 		prompt = malloc(1024);
 		strcpy(prompt,"");
 	}
 	for (;;) {
 		FD_ZERO(&fds);
 		FD_SET(xfd, &fds);
 		if(!done_reading) {
 			FD_SET(0, &fds);
 		}
 		timeout.tv_sec=0;
 		timeout.tv_usec=100000;
 		if (select(xfd + 1, &fds, NULL, NULL, &timeout) == -1)
 			die("cannot multiplex input:");
 		if (FD_ISSET(xfd, &fds)) {
 			readevent();
 		}
 		if (FD_ISSET(0, &fds)) {
 			if(!readstdin()) {
 				done_reading=1;
 			}
 			lines_read++;
 			curr_time=time(NULL);
 			if(curr_time == old_time) {//we want to force-redraw at least once per second I guess.
 				continue;//if this isn't here, all the match() and drawmenu() will bog down dmenu
 			}
 			old_time = curr_time;
 		}
 		//doing these things after each of the stdin lines read is SLOW as FUCK.
 		update_prompt(orig_prompt?orig_prompt:"",lines_read,done_reading);
 		match();
 		drawmenu();
 		//usleep(10000);
 	}
 }

 static void
 setup(void)
 {
 	int x, y, i, j;
 	unsigned int du;
 	XSetWindowAttributes swa;
 	XIM xim;
 	Window w, dw, *dws;
 	XWindowAttributes wa;
 	XClassHint ch = {"dmenu", "dmenu"};
 #ifdef XINERAMA
 	XineramaScreenInfo *info;
 	Window pw;
 	int a, di, n, area = 0;
 #endif
 	/* init appearance */
 	for (j = 0; j < SchemeLast; j++)
 		scheme[j] = drw_scm_create(drw, colors[j], 2);

 	clip = XInternAtom(dpy, "CLIPBOARD",   False);
 	utf8 = XInternAtom(dpy, "UTF8_STRING", False);

 	/* calculate menu geometry */
 	bh = drw->fonts->h + 2;
 	lines = MAX(lines, 0);
 	mh = (lines + 1) * bh;
 #ifdef XINERAMA
 	i = 0;
 	if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) {
 		XGetInputFocus(dpy, &w, &di);
 		if (mon >= 0 && mon < n)
 			i = mon;
 		else if (w != root && w != PointerRoot && w != None) {
 			/* find top-level window containing current input focus */
 			do {
 				if (XQueryTree(dpy, (pw = w), &dw, &w, &dws, &du) && dws)
 					XFree(dws);
 			} while (w != root && w != pw);
 			/* find xinerama screen with which the window intersects most */
 			if (XGetWindowAttributes(dpy, pw, &wa))
 				for (j = 0; j < n; j++)
 					if ((a = INTERSECT(wa.x, wa.y, wa.width, wa.height, info[j])) > area) {
 						area = a;
 						i = j;
 					}
 		}
 		/* no focused window is on screen, so use pointer location instead */
 		if (mon < 0 && !area && XQueryPointer(dpy, root, &dw, &dw, &x, &y, &di, &di, &du))
 			for (i = 0; i < n; i++)
 				if (INTERSECT(x, y, 1, 1, info[i]))
 					break;

 		x = info[i].x_org;
 		y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
 		mw = info[i].width;
 		XFree(info);
 	} else
 #endif
 	{
 		if (!XGetWindowAttributes(dpy, parentwin, &wa))
 			die("could not get embedding window attributes: 0x%lx",
 			    parentwin);
 		x = 0;
 		y = topbar ? 0 : wa.height - mh;
 		mw = wa.width;
 	}
 	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
 	inputw = MIN(inputw, mw/3);
 	match();

 	/* create menu window */
 	swa.override_redirect = True;
 	swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
 	swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask | ButtonPressMask | ButtonReleaseMask;;
 	win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0,
 	                    CopyFromParent, CopyFromParent, CopyFromParent,
 	                    CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
 	XSetClassHint(dpy, win, &ch);

 	/* open input methods */
 	xim = XOpenIM(dpy, NULL, NULL, NULL);
 	if(xim == NULL)
 		die("XOpenIM failed: could not open input device");
 	xic = XCreateIC(xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
 	                XNClientWindow, win, XNFocusWindow, win, NULL);

 	XMapRaised(dpy, win);
 	XSetInputFocus(dpy, win, RevertToParent, CurrentTime);
 	if (embed) {
 		XSelectInput(dpy, parentwin, FocusChangeMask);
 		if (XQueryTree(dpy, parentwin, &dw, &w, &dws, &du) && dws) {
 			for (i = 0; i < du && dws[i] != win; ++i)
 				XSelectInput(dpy, dws[i], FocusChangeMask);
 			XFree(dws);
 		}
 		grabfocus();
 	}
 	drw_resize(drw, mw, mh);
 	drawmenu();
 }

 static void
 usage(void)
 {
 	fputs("usage: dmenu [-biv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
 	      "             [-nb color] [-nf color] [-sb color] [-sf color] [-w windowid]\n", stderr);
 	exit(1);
 }

 int
 main(int argc, char *argv[])
 {
 	XWindowAttributes wa;
 	int i;

 	for (i = 1; i < argc; i++)
 		/* these options take no arguments */
 		if (!strcmp(argv[i], "-v")) {      /* prints version information */
 			puts("dmenu-"VERSION);
 			exit(0);
 		} else if (!strcmp(argv[i], "-b")) /* appears at the bottom of the screen */
 			topbar = 0;
 		else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
 			fstrncmp = strncasecmp;
 			fstrstr = cistrstr;
 		} else if (i + 1 == argc)
 			usage();
 		/* these options take one argument */
 		else if (!strcmp(argv[i], "-l"))   /* number of lines in vertical list */
 			lines = atoi(argv[++i]);
 		else if (!strcmp(argv[i], "-m"))
 			mon = atoi(argv[++i]);
 		else if (!strcmp(argv[i], "-p"))   /* adds prompt to left of input field */
 			prompt = argv[++i];
 		else if (!strcmp(argv[i], "-fn"))  /* font or font set */
 			fonts[0] = argv[++i];
 		else if (!strcmp(argv[i], "-nb"))  /* normal background color */
 			colors[SchemeNorm][ColBg] = argv[++i];
 		else if (!strcmp(argv[i], "-nf"))  /* normal foreground color */
 			colors[SchemeNorm][ColFg] = argv[++i];
 		else if (!strcmp(argv[i], "-sb"))  /* selected background color */
 			colors[SchemeSel][ColBg] = argv[++i];
 		else if (!strcmp(argv[i], "-sf"))  /* selected foreground color */
 			colors[SchemeSel][ColFg] = argv[++i];
 		else if (!strcmp(argv[i], "-w"))   /* embedding window id */
 			embed = argv[++i];
 		else
 			usage();

 	if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
 		fputs("warning: no locale support\n", stderr);
 	if (!XSetLocaleModifiers(""))
 		fputs("warning: no locale modifiers support\n", stderr);
 	if (!(dpy = XOpenDisplay(NULL)))
 		die("cannot open display");
 	screen = DefaultScreen(dpy);
 	root = RootWindow(dpy, screen);
 	if (!embed || !(parentwin = strtol(embed, NULL, 0)))
 		parentwin = root;
 	if (!XGetWindowAttributes(dpy, parentwin, &wa))
 		die("could not get embedding window attributes: 0x%lx",
 		    parentwin);
 	drw = drw_create(dpy, screen, root, wa.width, wa.height);
 	if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
 		die("no fonts could be loaded.");
 	lrpad = drw->fonts->h;

 #ifdef __OpenBSD__
 	if (pledge("stdio rpath", NULL) == -1)
 		die("pledge");
 #endif

 	setup();
 	grabkeyboard();
 	run();

 	return 1; /* unreachable */
 }

-- Response ended

-- Page fetched on Sun Jun 2 16:45:45 2024