1 files changed, 14 insertions, 0 deletions

diff --git a/scene/gui/line_edit.h b/scene/gui/line_edit.h
index 661f9b60b..bece29a37 100644
--- a/scene/gui/line_edit.h
+++ b/scene/gui/line_edit.h
@@ -56,6 +56,7 @@ public:
 		MENU_CLEAR,
 		MENU_SELECT_ALL,
 		MENU_UNDO,
+		MENU_REDO,
 		MENU_MAX
 
 	};
@@ -92,10 +93,22 @@ private:
 		bool drag_attempt;
 	} selection;
 
+	struct TextOperation {
+		int cursor_pos;
+		String text;
+	};
+	List<TextOperation> undo_stack;
+	List<TextOperation>::Element *undo_stack_pos;
+
+	void _clear_undo_stack();
+	void _clear_redo();
+	void _create_undo_state();
+
 	Timer *caret_blink_timer;
 
 	static void _ime_text_callback(void *p_self, String p_text, Point2 p_selection);
 	void _text_changed();
+	void _emit_text_change();
 	bool expand_to_text_length;
 
 	bool caret_blink_enabled;
@@ -166,6 +179,7 @@ public:
 	void cut_text();
 	void paste_text();
 	void undo();
+	void redo();
 
 	void set_editable(bool p_editable);
 	bool is_editable() const;