Merge pull request #1657 from Georgiy-Tugai/fix-flickering-shortened

[i3/i3] / include / tree.h

diff --git a/include/tree.h b/include/tree.h
index b9159e3b5b134851ae759ebb0935aadcdcd47230..af3309e9092295c4aec4d55d59308970c98d8e07 100644 (file)
--- a/include/tree.h
+++ b/include/tree.h
@@ -2,13 +2,12 @@
  * vim:ts=4:sw=4:expandtab
  *
  * i3 - an improved dynamic tiling window manager
- * © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
+ * © 2009 Michael Stapelberg and contributors (see also: LICENSE)
  *
  * tree.c: Everything that primarily modifies the layout tree data structure.
  *
  */
-#ifndef _TREE_H
-#define _TREE_H
+#pragma once
 
 extern Con *croot;
 /* TODO: i am not sure yet how much access to the focused container should
@@ -39,16 +38,16 @@ Con *tree_open_con(Con *con, i3Window *window);
 void tree_split(Con *con, orientation_t orientation);
 
 /**
- * Moves focus one level up.
+ * Moves focus one level up. Returns true if focus changed.
  *
  */
-void level_up(void);
+bool level_up(void);
 
 /**
- * Moves focus one level down.
+ * Moves focus one level down. Returns true if focus changed.
  *
  */
-void level_down(void);
+bool level_down(void);
 
 /**
  * Renders the tree, that is rendering all outputs using render_con() and
@@ -105,5 +104,3 @@ bool tree_restore(const char *path, xcb_get_geometry_reply_t *geometry);
  *
  */
 void tree_flatten(Con *child);
-
-#endif