Merge pull request #4444 from pv/jitsi-popout-immediate-join

Ensure active Jitsi conference is closed on widget pop-out

src/WidgetMessaging.js

@@ -96,6 +96,17 @@ export default class WidgetMessaging {
         });
     }
 
+    /**
+     * Tells the widget that it should terminate now.
+     * @returns {Promise<*>} Resolves when widget has acknowledged the message.
+     */
+    terminate() {
+        return this.messageToWidget({
+            api: OUTBOUND_API_NAME,
+            action: KnownWidgetActions.Terminate,
+        });
+    }
+
     /**
      * Request a screenshot from a widget
      * @return {Promise} To be resolved with screenshot data when it has been generated