修改组件自定义容器

src/core/widget/Popup.js

@@ -46,13 +46,14 @@ class Popup extends Widget {
   }
 
   /**
-   * Setting custom wrapper
+   * Setting  wrapper
    * @param wrapper
-   * @returns {Popup}
+   * @returns {Widget}
    */
-  setCustomWrapper(wrapper) {
+  setWrapper(wrapper) {
     if (wrapper && wrapper instanceof Element) {
       this._wrapper = wrapper
+      DomUtil.addClass(this._wrapper, 'dc-popup')
     }
     return this
   }

src/core/widget/Widget.js

@@ -105,6 +105,15 @@ class Widget {
     this._installHook && this._installHook()
   }
 
+  /**
+   * Setting  wrapper
+   * @param wrapper
+   * @returns {Widget}
+   */
+  setWrapper(wrapper) {
+    return this
+  }
+
   /**
    * Setting widget content
    * @param content