From 38a18b7aa0bc4adc9e368e32e62892e4031dc1ba Mon Sep 17 00:00:00 2001
From: Joffrey JAFFEUX <j.jaffeux@gmail.com>
Date: Wed, 13 Nov 2019 09:28:43 +0100
Subject: [PATCH] DEV: call destroy() on widget when glue is cleaned up (#8338)

---
 app/assets/javascripts/discourse/widgets/glue.js.es6 | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/app/assets/javascripts/discourse/widgets/glue.js.es6 b/app/assets/javascripts/discourse/widgets/glue.js.es6
index 93c5b35ec40..7d8a2a45614 100644
--- a/app/assets/javascripts/discourse/widgets/glue.js.es6
+++ b/app/assets/javascripts/discourse/widgets/glue.js.es6
@@ -54,6 +54,18 @@ export default class WidgetGlue {
   }
 
   cleanUp() {
+    const widgets = [];
+    const findWidgets = widget => {
+      widget.vnode.children.forEach(child => {
+        if (child.constructor.name === "CustomWidget") {
+          widgets.push(child);
+          findWidgets(child, widgets);
+        }
+      });
+    };
+    findWidgets(this._tree, widgets);
+    widgets.reverse().forEach(widget => widget.destroy());
+
     cancel(this._timeout);
   }
 }