Added core.set_active_view(); removed focusable boolean from View

data/plugins/treeview.lua

@@ -22,7 +22,6 @@ local TreeView = View:extend()
 function TreeView:new()
   TreeView.super.new(self)
   self.scrollable = true
-  self.focusable = false
   self.visible = true
   self.init_size = true
   self.cache = {}
@@ -112,6 +111,7 @@ end
 
 
 function TreeView:on_mouse_pressed(button, x, y)
+  core.set_active_view(core.last_active_view)
   if not self.hovered_item then
     return
   elseif self.hovered_item.type == "dir" then