Add simple heuristic to max_stack focus to deal with new event reality.

This mostly uses the same logic as a normal stack but it detects if the
previous window got unmapped and goes back to the parent.  The rest is
the same code as stacked focusing.

diff --git a/scrotwm.c b/scrotwm.c
index 07a4417..0137fe7 100644 (file)
--- a/scrotwm.c
+++ b/scrotwm.c
@@ -1678,13 +1678,12 @@ focus_prev(struct ws_win *win)
        }
 
        /* if in max_stack try harder */
-       /* XXX needs more love */
        if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
-               if (cur_focus != ws->focus_prev)
-                       winfocus = ws->focus_prev;
-               else if (cur_focus != ws->focus)
-                       winfocus = ws->focus;
-               goto done;
+               /* window got unmapped go to parent which is now cur_focus */
+               if (ws->focus_prev == win)
+                       winfocus = cur_focus;
+               if (winfocus)
+                       goto focusanyway;
        }
 
        if (cur_focus == win)
@@ -1696,6 +1695,7 @@ focus_prev(struct ws_win *win)
 done:
        if (winfocus == winlostfocus || winfocus == NULL)
                return;
+focusanyway:
        focus_magic(winfocus, SWM_F_GENERIC);
 }