X-Git-Url: https://git.danieliu.xyz/?p=dmenu.git;a=blobdiff_plain;f=dmenu.c;h=9a965e1c872a840dfcc13c5e9a4022fcfd950ed7;hp=96b2581428c43d3f6e23ee1a60ffd70b1337fbc5;hb=HEAD;hpb=4057beab68317ecedb85492afceac7b57991ea7c

diff --git a/dmenu.c b/dmenu.c
index 96b2581..9a965e1 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -40,6 +40,7 @@ static char *embed;
 static int bh, mw, mh;
 static int inputw = 0, promptw;
 static int lrpad; /* sum of left and right padding */
+static int reject_no_match = 0;
 static size_t cursor;
 static struct item *items = NULL;
 static struct item *matches, *matchend;
@@ -94,6 +95,15 @@ calcoffsets(void)
 			break;
 }
 
+static int
+max_textw(void)
+{
+	int len = 0;
+	for (struct item *item = items; item && item->text; item++)
+		len = MAX(TEXTW(item->text), len);
+	return len;
+}
+
 static void
 cleanup(void)
 {
@@ -274,12 +284,26 @@ insert(const char *str, ssize_t n)
 {
 	if (strlen(text) + n > sizeof text - 1)
 		return;
+
+	static char last[BUFSIZ] = "";
+	if(reject_no_match) {
+		/* store last text value in case we need to revert it */
+		memcpy(last, text, BUFSIZ);
+	}
+
 	/* 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();
+
+	if(!matches && reject_no_match) {
+		/* revert to last text value if theres no match */
+		memcpy(text, last, BUFSIZ);
+		cursor -= n;
+		match();
+	}
 }
 
 static size_t
@@ -621,6 +645,7 @@ setup(void)
 	bh = drw->fonts->h + 2;
 	lines = MAX(lines, 0);
 	mh = (lines + 1) * bh;
+	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
 #ifdef XINERAMA
 	i = 0;
 	if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) {
@@ -647,9 +672,16 @@ setup(void)
 				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;
+		if (centered) {
+			mw = MIN(MAX(max_textw() + promptw, min_width), info[i].width);
+			x = info[i].x_org + ((info[i].width  - mw) / 2);
+			y = info[i].y_org + ((info[i].height - mh) / 2);
+		} else {
+			x = info[i].x_org;
+			y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
+			mw = info[i].width;
+		}
+
 		XFree(info);
 	} else
 #endif
@@ -657,11 +689,17 @@ setup(void)
 		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;
+
+		if (centered) {
+			mw = MIN(MAX(max_textw() + promptw, min_width), wa.width);
+			x = (wa.width  - mw) / 2;
+			y = (wa.height - mh) / 2;
+		} else {
+			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();
 
@@ -669,9 +707,10 @@ setup(void)
 	swa.override_redirect = True;
 	swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
 	swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
-	win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0,
+	win = XCreateWindow(dpy, parentwin, x, y, mw, mh, border_width,
 	                    CopyFromParent, CopyFromParent, CopyFromParent,
 	                    CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
++	XSetWindowBorder(dpy, win, scheme[SchemeSel][ColBg].pixel);
 	XSetClassHint(dpy, win, &ch);
 
 
@@ -699,7 +738,7 @@ setup(void)
 static void
 usage(void)
 {
-	fputs("usage: dmenu [-bfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
+	fputs("usage: dmenu [-bfirv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
 	      "             [-nb color] [-nf color] [-sb color] [-sf color] [-w windowid]\n", stderr);
 	exit(1);
 }
@@ -754,10 +793,14 @@ main(int argc, char *argv[])
 			topbar = 0;
 		else if (!strcmp(argv[i], "-f"))   /* grabs keyboard before reading stdin */
 			fast = 1;
+		else if (!strcmp(argv[i], "-c"))   /* centers dmenu on screen */
+			centered = 1;
 		else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
 			fstrncmp = strncasecmp;
 			fstrstr = cistrstr;
-		} else if (i + 1 == argc)
+		} else if (!strcmp(argv[i], "-r")) /* reject input which results in no match */
+			reject_no_match = 1;
+		else if (i + 1 == argc)
 			usage();
 		/* these options take one argument */
 		else if (!strcmp(argv[i], "-l"))   /* number of lines in vertical list */