introduce efl_ui_focus_manager_window_root

Which is a interface that indicates that this is the root of all focus
managers.

src/Makefile_Elementary.am

@@ -101,6 +101,7 @@ elm_public_eolian_files = \
 	lib/elementary/efl_selection.eo \
 	lib/elementary/efl_ui_dnd.eo \
 	lib/elementary/efl_ui_dnd_container.eo \
+	lib/elementary/efl_ui_focus_manager_window_root.eo \
 	$(NULL)
 
 # More public files -- FIXME

src/lib/elementary/Elementary.h

@@ -155,6 +155,7 @@ typedef Eo Efl_Ui_Focus_Manager;
 
 # include <efl_ui_focus_object.eo.h>
 # include <efl_ui_focus_manager.eo.h>
+# include <efl_ui_focus_manager_window_root.eo.h>
 # include <efl_ui_focus_manager_calc.eo.h>
 # include <efl_ui_focus_manager_sub.eo.h>
 # include <efl_ui_focus_manager_root_focus.eo.h>

src/lib/elementary/efl_ui_focus_manager.c

@@ -6,3 +6,4 @@
 #include "elm_priv.h"
 
 #include "efl_ui_focus_manager.eo.c"
+#include "efl_ui_focus_manager_window_root.eo.c"

src/lib/elementary/efl_ui_focus_manager_calc.c

@@ -86,22 +86,24 @@ static void dirty_add(Eo *obj, Efl_Ui_Focus_Manager_Calc_Data *pd, Node *dirty);
 static void
 _manager_in_chain_set(Eo *obj, Efl_Ui_Focus_Manager_Calc_Data *pd)
 {
-   Eo *manager;
+   Eo *manager, *root;
 
-   EINA_SAFETY_ON_NULL_RETURN(pd->root);
+   root = efl_ui_focus_manager_root_get(obj);
+   manager = efl_ui_focus_object_focus_manager_get(pd->root->focusable);
 
-   if (!efl_isa(pd->root->focusable, EFL_UI_WIN_CLASS))
-     EINA_SAFETY_ON_NULL_RETURN(efl_ui_focus_object_focus_manager_get(pd->root->focusable));
+   EINA_SAFETY_ON_NULL_RETURN(root);
+
+   if (!efl_isa(root, EFL_UI_FOCUS_MANAGER_WINDOW_ROOT_INTERFACE))
+     EINA_SAFETY_ON_NULL_RETURN(manager);
 
    //so we dont run infinitly this does not fix it, but at least we only have a error
-   EINA_SAFETY_ON_TRUE_RETURN(efl_ui_focus_object_focus_manager_get(pd->root->focusable) == obj);
+   EINA_SAFETY_ON_TRUE_RETURN(manager == obj);
 
-   manager = efl_ui_focus_object_focus_manager_get(pd->root->focusable);
    if (manager)
-     efl_ui_focus_manager_focus_set(manager, pd->root->focusable);
+     efl_ui_focus_manager_focus_set(manager, root);
    else
       DBG("No focus manager for focusable %s@%p",
-          efl_class_name_get(pd->root->focusable), pd->root->focusable);
+          efl_class_name_get(pd->root->focusable), root);
 }
 
 static Efl_Ui_Focus_Direction

src/lib/elementary/efl_ui_focus_manager_window_root.eo

@@ -0,0 +1,7 @@
+interface Efl.Ui.Focus.Manager.Window_Root {
+  [[ A interface to indicate the end of a focus chain.
+
+     Focusmanagers are ensuring that if they give focus to something, that they are registered in the upper focus manager.
+     The most upper focus manager does not need to do that, and can implement this interface to indicate that.
+  ]]
+}

src/lib/elementary/efl_ui_win.eo

@@ -158,7 +158,7 @@ class Efl.Ui.Win (Efl.Ui.Widget, Efl.Canvas, Efl.Canvas.Pointer, Efl.Access.Wind
                   Efl.Access.Component, Efl.Access.Widget.Action,
                   Efl.Content, Efl.Input.State, Efl.Input.Interface, Efl.Screen,
                   Efl.Gfx.Size.Hint, Efl.Text, Efl.Config.Global, Efl.Part,
-                  Efl.Ui.Focus.Manager )
+                  Efl.Ui.Focus.Manager, Efl.Ui.Focus.Manager.Window_Root)
 {
    [[Efl UI window class]]
    legacy_prefix: elm_win;