diff --git a/src/ltui/boxdialog.lua b/src/ltui/boxdialog.lua
index 8b6c404..7ef8171 100644
--- a/src/ltui/boxdialog.lua
+++ b/src/ltui/boxdialog.lua
@@ -59,6 +59,11 @@ function boxdialog:init(name, bounds, title)
 
     -- select buttons by default
     self:panel():select(self:buttons())
+
+    -- on resize for panel
+    self:panel():action_add(action.ac_on_resized, function (v)
+        self:box():bounds_set(rect{0, 3, v:width(), v:height() - 1})
+    end)
 end
 
 -- get box
@@ -70,11 +75,5 @@ function boxdialog:box()
     return self._BOX
 end
 
--- on resize
-function boxdialog:on_resize()
-    self:box():bounds_set(rect{0, 3, self:panel():width(), self:panel():height() - 1})
-    textdialog.on_resize(self)
-end
-
 -- return module
 return boxdialog
diff --git a/src/ltui/dialog.lua b/src/ltui/dialog.lua
index 9104c00..5447fae 100644
--- a/src/ltui/dialog.lua
+++ b/src/ltui/dialog.lua
@@ -121,10 +121,5 @@ function dialog:on_event(e)
     return window.on_event(self, e)
 end
 
--- on resize
-function dialog:on_resize()
-    window.on_resize(self)
-end
-
 -- return module
 return dialog
diff --git a/src/ltui/inputdialog.lua b/src/ltui/inputdialog.lua
index 48cedac..d42a7ec 100644
--- a/src/ltui/inputdialog.lua
+++ b/src/ltui/inputdialog.lua
@@ -74,10 +74,5 @@ function inputdialog:textedit()
     return self._TEXTEDIT
 end
 
--- on resize
-function inputdialog:on_resize()
-    textdialog.on_resize(self)
-end
-
 -- return module
 return inputdialog
diff --git a/src/ltui/textdialog.lua b/src/ltui/textdialog.lua
index 3f31093..f4eabce 100644
--- a/src/ltui/textdialog.lua
+++ b/src/ltui/textdialog.lua
@@ -70,10 +70,5 @@ function textdialog:on_event(e)
     end
 end
 
--- on resize
-function textdialog:on_resize()
-    dialog.on_resize(self)
-end
-
 -- return module
 return textdialog