From ec068c67c694c773b8bfce70a31585eecab7f310 Mon Sep 17 00:00:00 2001
From: Ignacio Rodríguez <ignaciorodriguez@sugarlabs.org>
Date: Sun, 12 May 2013 23:39:03 +0000
Subject: Navegación en el TreeView con las teclas.

---
diff --git a/ListView.py b/ListView.py
index 6600e88..42661e1 100644
--- a/ListView.py
+++ b/ListView.py
@@ -22,6 +22,7 @@ class ListView(Gtk.TreeView):
 
         self.connect("row-expanded", self.__expandir)
         self.connect("row-collapsed", self.__colapsar)
+        self.connect("key-press-event", self.__tecla_presionada)
 
         self.show_all()
 
@@ -104,6 +105,29 @@ class ListView(Gtk.TreeView):
         self.modelo.append(iter, ["Vacio",
                                 "Directorio"])
 
+
+    def __tecla_presionada(self, widget, event):
+        tecla = event.keyval
+
+        model, iter = self.get_selection().get_selected()
+
+        if iter is None: return
+
+        path = self.get_model().get_path(iter)
+
+        if tecla == 65361:
+            if self.row_expanded(path):
+                self.collapse_row(path)
+                
+        elif tecla == 65363:
+            if not self.row_expanded(path):
+                self.expand_to_path(path)
+                
+        else:
+            pass
+        
+        return False
+
 if __name__ == "__main__":
     Scroll = Gtk.ScrolledWindow()
     Scroll.add_with_viewport(ListView())
--
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