From a569bb24b81429564b49428fea847e4aaa459a8e Mon Sep 17 00:00:00 2001
From: Dani Palou <dani@moodle.com>
Date: Wed, 17 Jul 2019 14:49:21 +0200
Subject: [PATCH] MOBILE-3096 qbehaviour: No behaviour buttons if prevent
 submit

---
 src/core/question/providers/helper.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/core/question/providers/helper.ts b/src/core/question/providers/helper.ts
index 01f85c86e..e564a97d8 100644
--- a/src/core/question/providers/helper.ts
+++ b/src/core/question/providers/helper.ts
@@ -67,6 +67,11 @@ export class CoreQuestionHelperProvider {
      * @param {string} [selector] Selector to search the buttons. By default, '.im-controls input[type="submit"]'.
      */
     extractQbehaviourButtons(question: any, selector?: string): void {
+        if (this.questionDelegate.getPreventSubmitMessage(question)) {
+            // The question is not fully supported, don't extract the buttons.
+            return;
+        }
+
         selector = selector || '.im-controls input[type="submit"]';
 
         const element = this.domUtils.convertToElement(question.html);
@@ -76,8 +81,6 @@ export class CoreQuestionHelperProvider {
         buttons.forEach((button) => {
             this.addBehaviourButton(question, button);
         });
-
-        question.html = element.innerHTML;
     }
 
     /**