diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/DialogAware.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/DialogAware.java
new file mode 100644
index 000000000..5dbcdc79c
--- /dev/null
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/construct/DialogAware.java
@@ -0,0 +1,31 @@
+/*
+ * Hello Minecraft! Launcher.
+ * Copyright (C) 2017  huangyuhui <huanghongxun2008@126.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see {http://www.gnu.org/licenses/}.
+ */
+package org.jackhuang.hmcl.ui.construct;
+
+import org.jackhuang.hmcl.ui.Controllers;
+
+/**
+ * @author yushijinhun
+ * @see Controllers#dialog(javafx.scene.layout.Region)
+ */
+public interface DialogAware {
+
+    default void onDialogShown() {
+    }
+
+}