handle close event in lua

modules/core_lib/util.lua

@@ -10,6 +10,14 @@ function fatal(msg)
   Logger.log(LogFatal, msg)
 end
 
+function setonclose(func)
+  g_app.onClose = func
+end
+
+function exit()
+  g_app.exit()
+end
+
 function connect(object, signalsAndSlots, pushFront)
   for signal,slot in pairs(signalsAndSlots) do
     if not object[signal] then

modules/game/game.lua

@@ -60,5 +60,15 @@ function Game.onDeath()
   print('dead')
 end
 
+local function onApplicationClose()
+  print('close app')
+  if Game.isOnline() then
+    Game.logout(false)
+  else
+    exit()
+  end
+end
+
+setonclose(onApplicationClose)
 connect(Game, { onLogin = Game.createInterface }, true)
 connect(Game, { onLogout = Game.destroyInterface })