Add close target to slideover with animations

Author: excid3

CHANGELOG.md

@@ -3,6 +3,7 @@
 # 4.0.1
 
 * Tabs index now selects panels and no longer requires tabs
+* Add closeTarget to Slideover
 
 # 4.0.0
 

src/slideover.js

@@ -2,10 +2,11 @@ import Dropdown from './dropdown.js'
 import { toggleWithState } from './transition'
 
 export default class extends Dropdown {
-  static targets = ['menu', 'overlay']
+  static targets = ['menu', 'overlay', 'close']
 
   openValueChanged() {
     toggleWithState(this.overlayTarget, this.openValue)
     toggleWithState(this.menuTarget, this.openValue)
+    if (this.hasCloseTarget) toggleWithState(this.closeTarget, this.openValue)
   }
 }