X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;ds=sidebyside;f=dwm.c;h=ba24d9a6b78ec79a58fa66d460b630bfc8cfd050;hb=258c3380305683de8031871cf95c1cc04ed7ad9e;hp=10416f8dadb6dc0ceb2030a66517bed7a66e9183;hpb=840f937a9876091aef227316b7eb2db0f9e5255e;p=dwm.git

diff --git a/dwm.c b/dwm.c
index 10416f8..ba24d9a 100644
--- a/dwm.c
+++ b/dwm.c
@@ -751,25 +751,27 @@ grabbuttons(Client *c, Bool focused) {
 void
 grabkeys(void) {
 	unsigned int i, j;
-	unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
-	KeyCode code;
 	XModifierKeymap *modmap;
 
-	/* init modifier map */
+	/* update modifier map */
 	modmap = XGetModifierMapping(dpy);
 	for(i = 0; i < 8; i++)
-		for(j = 0; j < modmap->max_keypermod; j++) {
+		for(j = 0; j < modmap->max_keypermod; j++)
 			if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
 				numlockmask = (1 << i);
-		}
 	XFreeModifiermap(modmap);
 
-	XUngrabKey(dpy, AnyKey, AnyModifier, root);
-	for(i = 0; i < LENGTH(keys); i++) {
-		code = XKeysymToKeycode(dpy, keys[i].keysym);
-		for(j = 0; j < LENGTH(modifiers); j++)
-			XGrabKey(dpy, code, keys[i].mod | modifiers[j], root, True,
-			         GrabModeAsync, GrabModeAsync);
+	{ /* grab keys */
+		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
+		KeyCode code;
+
+		XUngrabKey(dpy, AnyKey, AnyModifier, root);
+		for(i = 0; i < LENGTH(keys); i++) {
+			code = XKeysymToKeycode(dpy, keys[i].keysym);
+			for(j = 0; j < LENGTH(modifiers); j++)
+				XGrabKey(dpy, code, keys[i].mod | modifiers[j], root, True,
+					 GrabModeAsync, GrabModeAsync);
+		}
 	}
 }
 
@@ -779,8 +781,6 @@ initfont(const char *fontstr) {
 	int i, n;
 
 	missing = NULL;
-	if(dc.font.set)
-		XFreeFontSet(dpy, dc.font.set);
 	dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
 	if(missing) {
 		while(n--)
@@ -1373,8 +1373,6 @@ setup(void) {
 	XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
 	XSelectInput(dpy, root, wa.event_mask);
 
-
-	/* grab keys */
 	grabkeys();
 }
 
@@ -1469,8 +1467,12 @@ togglefloating(const Arg *arg) {
 
 void
 toggletag(const Arg *arg) {
-	unsigned int mask = sel->tags ^ (arg->ui & TAGMASK);
+	unsigned int mask;
 
+	if (!sel)
+		return;
+	
+	mask = sel->tags ^ (arg->ui & TAGMASK);
 	if(sel && mask) {
 		sel->tags = mask;
 		arrange();