Fixed a lot of focus code, including a segfault.

area.c

@@ -65,11 +65,11 @@ create_area(View *v, Area *pos, unsigned int w) {
 	a->next = *p;
 	*p = a;
 
+	if(!v->sel || (v->sel->floating && v->area->next == a && a->next == nil))
+		focus_area(a);
+
 	if(i)
 		write_event("CreateColumn %d\n", i);
-
-	focus_area(a);
-
 	return a;
 }
 
@@ -119,7 +119,7 @@ send_to_area(Area *to, Area *from, Frame *f) {
 
 void
 attach_to_area(Area *a, Frame *f, Bool send) {
-	unsigned int h, n_frame;
+	unsigned int w, h, n_frame;
 	Frame *ft;
 	Client *c;
 	View *v;
@@ -128,6 +128,15 @@ attach_to_area(Area *a, Frame *f, Bool send) {
 	c = f->client;
 	h = 0;
 
+	if(!a->floating && !send) {
+		w = newcolw_of_view(v);
+		if(w && v->area->next->frame) {
+			a = new_column(v, a, w);
+			arrange_view(v);
+		}
+	}
+	f->area = a;
+
 	n_frame = 1;
 	for(ft=a->frame; ft; ft=ft->anext)
 		n_frame++;
@@ -138,28 +147,22 @@ attach_to_area(Area *a, Frame *f, Bool send) {
 		if(a->frame)
 			scale_column(a, a->rect.height - h);
 	}
-	if(!send && !a->floating) { /* column */
-		unsigned int w = newcolw_of_view(v);
-		if(v->area->next->frame && w) {
-			a = new_column(v, a, w);
-			arrange_view(v);
-		}
-	}
-	f->area = a;
 	if(a->sel)
 		insert_frame(nil, f, False);
 	else
 		insert_frame(a->sel, f, False);
-	if(!c->floating) /* column */
+
+	if(!a->floating)
 		f->rect.height = h;
-	else /* floating */
+	else
 		place_client(a, c);
 
-	focus_client(f->client, False);
+	focus_frame(f, False);
 	if(!a->floating)
 		arrange_column(a, False);
 
 	update_client_grab(f->client);
+	assert(a->sel);
 }
 
 void
@@ -208,7 +211,8 @@ detach_from_area(Area *a, Frame *f) {
 		}
 		else if(v->area->next->frame)
 			focus_area(v->area->next);
-	}
+	}else
+		assert(a->sel);
 }
 
 static void
@@ -323,27 +327,27 @@ focus_area(Area *a) {
 		return;
 
 	v->sel = a;
-	if(v != screen->sel)
-		return;
 
 	if(f)
-		XSetInputFocus(blz.dpy, f->client->win, RevertToPointerRoot, CurrentTime);
-	else
-		XSetInputFocus(blz.dpy, blz.root, RevertToPointerRoot, CurrentTime);
-
-	if(f) {
 		update_frame_widget_colors(f);
-		draw_frame(f);
-	}
 	if(old_a) {
-		if(old_a->sel) {
+		if(old_a->sel)
 			update_frame_widget_colors(old_a->sel);
-			draw_frame(old_a->sel);
-		}
 		if(a->floating != old_a->floating)
 			v->revert = old_a;
 	}
 
+	if(v != screen->sel)
+		return;
+
+	if(f) {
+		draw_frame(f);
+		XSetInputFocus(blz.dpy, f->client->win, RevertToPointerRoot, CurrentTime);
+	}else
+		XSetInputFocus(blz.dpy, blz.root, RevertToPointerRoot, CurrentTime);
+
+	if(old_a && old_a->sel)
+		draw_frame(old_a->sel);
 
 	if(a != old_a) {
 		i = 0;
@@ -388,13 +392,13 @@ select_area(Area *a, char *arg) {
 			return Ebadvalue;
 		for(p=a->frame; p->anext; p=p->anext)
 			if(p->anext == f) break;
-		goto focus_client;
+		goto focus_frame;
 	}
 	else if(!strncmp(arg, "down", 5)) {
 		if(!f)
 			return Ebadvalue;
 		p = f->anext ? f->anext : a->frame;
-		goto focus_client;
+		goto focus_frame;
 	}
 	else {
 		if(sscanf(arg, "%d", &i) != 1)
@@ -405,9 +409,9 @@ select_area(Area *a, char *arg) {
 	focus_area(new);
 	return nil;
 
-focus_client:
+focus_frame:
 	frame_to_top(p);
-	focus_client(p->client, False);
+	focus_frame(p, False);
 	if(v == screen->sel)
 		restack_view(v);
 	flush_masked_events(EnterWindowMask);

client.c

@@ -80,7 +80,7 @@ manage_client(Client *c) {
 		update_views();
 	XSync(blz.dpy, False);
 	if(c->sel->area->view == screen->sel)
-		focus_client(c, False);
+		focus(c, True);
 	flush_masked_events(EnterWindowMask);
 }
 
@@ -161,51 +161,8 @@ focus(Client *c, Bool restack) {
 	if(!(f = c->sel)) return;
 	v = f->area->view;
 	arrange_column(f->area, False);
-	focus_client(c, restack);
 	focus_view(screen, v);
-}
-
-void
-focus_client(Client *c, Bool restack) {
-	Client *old;
-	Frame *f, *old_f;
-	View *v;
-	Area *a, *old_a;
-
-	f = c->sel;
-	a = f->area;
-	v = f->view;
-	old = sel_client();
-	old_a = nil;
-	if(old) {
-		old_f = old->sel;
-		old_a = old_f->area;
-	}
-
-	a->sel = f;
-	if(!a->floating && (a->mode == Colstack))
-		arrange_column(a, False);
-
-	if(v != screen->sel)
-		return;
-
-	if(f->area != old_a)
-		focus_area(f->area);
-	else {
-		XSetInputFocus(blz.dpy, f->client->win, RevertToPointerRoot, CurrentTime);
-		update_frame_widget_colors(f);
-		draw_frame(f);
-		if(old) {
-			update_frame_widget_colors(old_f);
-			draw_frame(old_f);
-		}
-	}
-
-	if(c != old)
-		write_event("ClientFocus 0x%x\n", c->win);
-
-	if(restack)
-		restack_view(v);
+	focus_frame(c->sel, restack);
 }
 
 void
@@ -654,7 +611,7 @@ send_client(Frame *f, char *arg) {
 	}else
 		return Ebadvalue;
 	flush_masked_events(EnterWindowMask);
-	focus_client(f->client, True);
+	focus_frame(f, True);
 	update_views();
 	return nil;
 }

frame.c

@@ -157,6 +157,53 @@ swap_frames(Frame *fa, Frame *fb) {
 	fb->rect = trect;
 }
 
+void
+focus_frame(Frame *f, Bool restack) {
+	Frame *old, *old_in_a;
+	View *v;
+	Area *a, *old_a;
+
+	a = f->area;
+	v = f->view;
+	old = v->sel->sel;
+	old_a = v->sel;
+	old_in_a = a->sel;
+
+	a->sel = f;
+	if(!a->floating && (a->mode == Colstack))
+		arrange_column(a, False);
+
+	if(a != old_a)
+		focus_area(f->area);
+	else {
+		update_frame_widget_colors(f);
+		if(old)
+			update_frame_widget_colors(old);
+	}
+
+	if(old_in_a)
+		update_frame_widget_colors(old_in_a);
+
+	if(v != screen->sel)
+		return;
+
+	if(a == old_a) {
+		XSetInputFocus(blz.dpy, f->client->win, RevertToPointerRoot, CurrentTime);
+		draw_frame(f);
+	}
+	else if(old_in_a)
+		draw_frame(old_in_a);
+
+	if(f != old) {
+		if(old)
+			draw_frame(old);
+		write_event("ClientFocus 0x%x\n", f->client->win);
+	}
+
+	if(restack)
+		restack_view(v);
+}
+
 void
 update_frame_widget_colors(Frame *f) {
 	if(f->area->sel == f) {

mouse.c

@@ -432,9 +432,10 @@ do_mouse_resize(Client *c, Bool grabbox, BlitzAlign align) {
 
 			match_sizehints(c, &frect, floating, grav);
 
-			if(grabbox)
+			if(grabbox) {
 				resize_client(c, &frect);
-			else {
+				XSync(blz.dpy, False);
+			} else {
 				draw_xor_border(&ofrect);
 				draw_xor_border(&frect);
 			}

view.c

@@ -125,10 +125,7 @@ focus_view(WMScreen *s, View *v) {
 				unmap_client(c, IconicState);
 			}
 		}
-	if((c = sel_client()))
-		focus_client(c, True);
-	else
-		XSetInputFocus(blz.dpy, blz.root, RevertToPointerRoot, CurrentTime);
+	focus_area(v->sel);
 	draw_frames();
 	XSync(blz.dpy, False);
 	XUngrabServer(blz.dpy);
@@ -412,7 +409,8 @@ newcolw_of_view(View *v) {
 			char *toks[16];
 			strncpy(buf, r->value, sizeof(buf));
 			n = ixp_tokenize(toks, 16, buf, '+');
-			for(a=v->area, i=0; a; a=a->next, i++);
+			for(a=v->area, i=0; a; a=a->next)
+				i++;
 			if(n && n >= i) {
 				if(sscanf(toks[i - 1], "%u", &n) == 1)
 					return (screen->rect.width * n) / 100;

wmii.h

@@ -277,7 +277,6 @@ extern void unmap_client(Client *c, int state);
 extern void map_client(Client *c);
 extern void reparent_client(Client *c, Window w, int x, int y);
 extern void manage_client(Client *c);
-extern void focus_client(Client *c, Bool restack);
 extern void focus(Client *c, Bool restack);
 extern void resize_client(Client *c, XRectangle *r);
 extern void match_sizehints(Client *c, XRectangle *r, Bool floating, BlitzAlign sticky);
@@ -327,6 +326,7 @@ extern void insert_frame(Frame *pos, Frame *f, Bool before);
 extern void resize_frame(Frame *f, XRectangle *r);
 extern Bool frame_to_top(Frame *f);
 extern void swap_frames(Frame *fa, Frame *fb);
+extern void focus_frame(Frame *f, Bool restack);
 extern void draw_frame(Frame *f);
 extern void draw_frames();
 extern void update_frame_widget_colors(Frame *f);