+/* this be mostly ripped from fvwm */
+static ObClient *focus_find_directional(ObClient *c, ObDirection dir,
+ gboolean dock_windows)
+{
+ gint my_cx, my_cy, his_cx, his_cy;
+ gint offset = 0;
+ gint distance = 0;
+ gint score, best_score;
+ ObClient *best_client, *cur;
+ GList *it;
+
+ if(!client_list)
+ return NULL;
+
+ /* first, find the centre coords of the currently focused window */
+ my_cx = c->frame->area.x + c->frame->area.width / 2;
+ my_cy = c->frame->area.y + c->frame->area.height / 2;
+
+ best_score = -1;
+ best_client = NULL;
+
+ for(it = g_list_first(client_list); it; it = g_list_next(it)) {
+ cur = it->data;
+
+ /* the currently selected window isn't interesting */
+ if(cur == c)
+ continue;
+ if (!dock_windows && !client_normal(cur))
+ continue;
+ if (dock_windows && cur->type != OB_CLIENT_TYPE_DOCK)
+ continue;
+ /* using c->desktop instead of screen_desktop doesn't work if the
+ * current window was omnipresent, hope this doesn't have any other
+ * side effects */
+ if(screen_desktop != cur->desktop && cur->desktop != DESKTOP_ALL)
+ continue;
+ if(cur->iconic)
+ continue;
+ if(!(client_focus_target(cur) == cur &&
+ client_can_focus(cur)))
+ continue;
+
+ /* find the centre coords of this window, from the
+ * currently focused window's point of view */
+ his_cx = (cur->frame->area.x - my_cx)
+ + cur->frame->area.width / 2;
+ his_cy = (cur->frame->area.y - my_cy)
+ + cur->frame->area.height / 2;
+
+ if(dir == OB_DIRECTION_NORTHEAST || dir == OB_DIRECTION_SOUTHEAST ||
+ dir == OB_DIRECTION_SOUTHWEST || dir == OB_DIRECTION_NORTHWEST) {
+ gint tx;
+ /* Rotate the diagonals 45 degrees counterclockwise.
+ * To do this, multiply the matrix /+h +h\ with the
+ * vector (x y). \-h +h/
+ * h = sqrt(0.5). We can set h := 1 since absolute
+ * distance doesn't matter here. */
+ tx = his_cx + his_cy;
+ his_cy = -his_cx + his_cy;
+ his_cx = tx;
+ }
+
+ switch(dir) {
+ case OB_DIRECTION_NORTH:
+ case OB_DIRECTION_SOUTH:
+ case OB_DIRECTION_NORTHEAST:
+ case OB_DIRECTION_SOUTHWEST:
+ offset = (his_cx < 0) ? -his_cx : his_cx;
+ distance = ((dir == OB_DIRECTION_NORTH ||
+ dir == OB_DIRECTION_NORTHEAST) ?
+ -his_cy : his_cy);
+ break;
+ case OB_DIRECTION_EAST:
+ case OB_DIRECTION_WEST:
+ case OB_DIRECTION_SOUTHEAST:
+ case OB_DIRECTION_NORTHWEST:
+ offset = (his_cy < 0) ? -his_cy : his_cy;
+ distance = ((dir == OB_DIRECTION_WEST ||
+ dir == OB_DIRECTION_NORTHWEST) ?
+ -his_cx : his_cx);
+ break;
+ }
+
+ /* the target must be in the requested direction */
+ if(distance <= 0)
+ continue;
+
+ /* Calculate score for this window. The smaller the better. */
+ score = distance + offset;
+
+ /* windows more than 45 degrees off the direction are
+ * heavily penalized and will only be chosen if nothing
+ * else within a million pixels */
+ if(offset > distance)
+ score += 1000000;
+
+ if(best_score == -1 || score < best_score)
+ best_client = cur,
+ best_score = score;
+ }
+
+ return best_client;
+}
+
+void focus_directional_cycle(ObDirection dir, gboolean dock_windows,
+ gboolean interactive,