X-Git-Url: https://git.xinqibao.xyz/dmenu.git/blobdiff_plain/fe94aeb4686b62dd5c3505ebca4a1e1661740e53..3b590beda2fb23400f74394badd7a5231d4d7920:/main.c

diff --git a/main.c b/main.c
index 561f88f..5a9b3b9 100644
--- a/main.c
+++ b/main.c
@@ -11,6 +11,8 @@
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
+#include <sys/select.h>
+#include <sys/time.h>
 #include <X11/cursorfont.h>
 #include <X11/Xutil.h>
 #include <X11/keysym.h>
@@ -29,7 +31,7 @@ static int mx, my, mw, mh;
 static int ret = 0;
 static int nitem = 0;
 static unsigned int cmdw = 0;
-static Bool done = False;
+static Bool running = True;
 static Item *allitems = NULL;	/* first of all items */
 static Item *item = NULL;	/* first of pattern matching items */
 static Item *sel = NULL;
@@ -40,8 +42,7 @@ static Window root;
 static Window win;
 
 static void
-calcoffsets()
-{
+calcoffsets(void) {
 	unsigned int tw, w;
 
 	if(!curr)
@@ -69,25 +70,24 @@ calcoffsets()
 }
 
 static void
-drawmenu()
-{
+drawmenu(void) {
 	Item *i;
 
 	dc.x = 0;
 	dc.y = 0;
 	dc.w = mw;
 	dc.h = mh;
-	drawtext(NULL, False, False);
+	drawtext(NULL, dc.norm);
 
 	/* print command */
 	if(cmdw && item)
 		dc.w = cmdw;
-	drawtext(text[0] ? text : NULL, False, False);
+	drawtext(text[0] ? text : NULL, dc.norm);
 	dc.x += cmdw;
 
 	if(curr) {
 		dc.w = SPACE;
-		drawtext((curr && curr->left) ? "<" : NULL, False, False);
+		drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
 		dc.x += dc.w;
 
 		/* determine maximum items */
@@ -95,21 +95,20 @@ drawmenu()
 			dc.w = textw(i->text);
 			if(dc.w > mw / 3)
 				dc.w = mw / 3;
-			drawtext(i->text, sel == i, sel == i);
+			drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
 			dc.x += dc.w;
 		}
 
 		dc.x = mw - SPACE;
 		dc.w = SPACE;
-		drawtext(next ? ">" : NULL, False, False);
+		drawtext(next ? ">" : NULL, dc.norm);
 	}
 	XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
 	XFlush(dpy);
 }
 
 static void
-match(char *pattern)
-{
+match(char *pattern) {
 	unsigned int plen;
 	Item *i, *j;
 
@@ -149,8 +148,7 @@ match(char *pattern)
 }
 
 static void
-kpress(XKeyEvent * e)
-{
+kpress(XKeyEvent * e) {
 	char buf[32];
 	int num, prev_nitem;
 	unsigned int i, len;
@@ -172,18 +170,16 @@ kpress(XKeyEvent * e)
 			return;
 			break;
 		case XK_h:
+		case XK_H:
 			ksym = XK_BackSpace;
 			break;
-		case XK_U:
 		case XK_u:
+		case XK_U:
 			text[0] = 0;
 			match(text);
 			drawmenu();
 			return;
 			break;
-		case XK_bracketleft:
-			ksym = XK_Escape;
-			break;
 		}
 	}
 	switch(ksym) {
@@ -212,20 +208,18 @@ kpress(XKeyEvent * e)
 		}
 		break;
 	case XK_Return:
-		if(e->state & ShiftMask) {
-			if(text)
-				fprintf(stdout, "%s", text);
-		}
+		if((e->state & ShiftMask) && text)
+			fprintf(stdout, "%s", text);
 		else if(sel)
 			fprintf(stdout, "%s", sel->text);
 		else if(text)
 			fprintf(stdout, "%s", text);
 		fflush(stdout);
-		done = True;
+		running = False;
 		break;
 	case XK_Escape:
 		ret = 1;
-		done = True;
+		running = False;
 		break;
 	case XK_BackSpace:
 		if((i = len)) {
@@ -251,8 +245,7 @@ kpress(XKeyEvent * e)
 }
 
 static char *
-readstdin()
-{
+readstdin(void) {
 	static char *maxname = NULL;
 	char *p, buf[1024];
 	unsigned int len = 0, max = 0;
@@ -289,18 +282,42 @@ Display *dpy;
 DC dc = {0};
 
 int
-main(int argc, char *argv[])
-{
+main(int argc, char *argv[]) {
+	char *font = FONT;
 	char *maxname;
+	char *normbg = NORMBGCOLOR;
+	char *normfg = NORMFGCOLOR;
+	char *selbg = SELBGCOLOR;
+	char *selfg = SELFGCOLOR;
+	fd_set rd;
+	int i;
+	struct timeval timeout;
+	Item *itm;
 	XEvent ev;
 	XSetWindowAttributes wa;
 
-	if(argc == 2 && !strncmp("-v", argv[1], 3)) {
-		fputs("dmenu-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
-		exit(EXIT_SUCCESS);
-	}
-	else if(argc != 1)
-		eprint("usage: dmenu [-v]\n");
+	timeout.tv_usec = 0;
+	timeout.tv_sec = 3;
+	/* command line args */
+	for(i = 1; i < argc; i++)
+		if(!strncmp(argv[i], "-font", 6))
+			font = argv[++i];
+		else if(!strncmp(argv[i], "-normbg", 8))
+			normbg = argv[++i];
+		else if(!strncmp(argv[i], "-normfg", 8))
+			normfg = argv[++i];
+		else if(!strncmp(argv[i], "-selbg", 7))
+			selbg = argv[++i];
+		else if(!strncmp(argv[i], "-selfg", 7))
+			selfg = argv[++i];
+		else if(!strncmp(argv[i], "-t", 3))
+			timeout.tv_sec = atoi(argv[++i]);
+		else if(!strncmp(argv[i], "-v", 3)) {
+			fputs("dmenu-"VERSION", (C)opyright MMVI Anselm R. Garbe\n", stdout);
+			exit(EXIT_SUCCESS);
+		}
+		else
+			eprint("usage: dmenu [-font <name>] [-{norm,sel}{bg,fg} <color>] [-t <seconds>] [-v]\n", stdout);
 
 	dpy = XOpenDisplay(0);
 	if(!dpy)
@@ -308,18 +325,27 @@ main(int argc, char *argv[])
 	screen = DefaultScreen(dpy);
 	root = RootWindow(dpy, screen);
 
-	maxname = readstdin();
-
-	/* grab as early as possible, but after reading all items!!! */
+	/* Note, the select() construction allows to grab all keypresses as
+	 * early as possible, to not loose them. But if there is no standard
+	 * input supplied, we will make sure to exit after MAX_WAIT_STDIN
+	 * seconds. This is convenience behavior for rapid typers.
+	 */ 
 	while(XGrabKeyboard(dpy, root, True, GrabModeAsync,
 			 GrabModeAsync, CurrentTime) != GrabSuccess)
 		usleep(1000);
 
+	FD_ZERO(&rd);
+	FD_SET(STDIN_FILENO, &rd);
+	if(select(ConnectionNumber(dpy) + 1, &rd, NULL, NULL, &timeout) < 1)
+		goto UninitializedEnd;
+	maxname = readstdin();
+
 	/* style */
-	dc.bg = getcolor(BGCOLOR);
-	dc.fg = getcolor(FGCOLOR);
-	dc.border = getcolor(BORDERCOLOR);
-	setfont(FONT);
+	dc.norm[ColBG] = getcolor(normbg, NORMBGCOLOR);
+	dc.norm[ColFG] = getcolor(normfg, NORMFGCOLOR);
+	dc.sel[ColBG] = getcolor(selbg, SELBGCOLOR);
+	dc.sel[ColFG] = getcolor(selfg, SELFGCOLOR);
+	setfont(font);
 
 	wa.override_redirect = 1;
 	wa.background_pixmap = ParentRelative;
@@ -327,7 +353,7 @@ main(int argc, char *argv[])
 
 	mx = my = 0;
 	mw = DisplayWidth(dpy, screen);
-	mh = dc.font.height + 4;
+	mh = dc.font.height + 2;
 
 	win = XCreateWindow(dpy, root, mx, my, mw, mh, 0,
 			DefaultDepth(dpy, screen), CopyFromParent,
@@ -338,6 +364,7 @@ main(int argc, char *argv[])
 	/* pixmap */
 	dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
 	dc.gc = XCreateGC(dpy, root, 0, 0);
+	XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
 
 	if(maxname)
 		cmdw = textw(maxname);
@@ -351,8 +378,10 @@ main(int argc, char *argv[])
 	XSync(dpy, False);
 
 	/* main event loop */
-	while(!done && !XNextEvent(dpy, &ev)) {
+	while(running && !XNextEvent(dpy, &ev)) {
 		switch (ev.type) {
+		default:	/* ignore all crap */
+			break;
 		case KeyPress:
 			kpress(&ev.xkey);
 			break;
@@ -360,15 +389,24 @@ main(int argc, char *argv[])
 			if(ev.xexpose.count == 0)
 				drawmenu();
 			break;
-		default:
-			break;
 		}
 	}
 
-	XUngrabKeyboard(dpy, CurrentTime);
+	while(allitems) {
+		itm = allitems->next;
+		free(allitems->text);
+		free(allitems);
+		allitems = itm;
+	}
+	if(dc.font.set)
+		XFreeFontSet(dpy, dc.font.set);
+	else
+		XFreeFont(dpy, dc.font.xfont);
 	XFreePixmap(dpy, dc.drawable);
 	XFreeGC(dpy, dc.gc);
 	XDestroyWindow(dpy, win);
+UninitializedEnd:
+	XUngrabKeyboard(dpy, CurrentTime);
 	XCloseDisplay(dpy);
 
 	return ret;