From 2596265b364cbac2635f7a457879ba94b95bb568 Mon Sep 17 00:00:00 2001
From: Ruslan Kabalin <r.kabalin@lancaster.ac.uk>
Date: Wed, 3 Oct 2012 13:42:10 +0100
Subject: [PATCH] MDL-35767 Fix missing target event group check
Prevent interfering between items from different groups (and no groups)
---
lib/yui/dragdrop/dragdrop.js | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/lib/yui/dragdrop/dragdrop.js b/lib/yui/dragdrop/dragdrop.js
index 20c3a818b4a..c46205b7c1b 100644
--- a/lib/yui/dragdrop/dragdrop.js
+++ b/lib/yui/dragdrop/dragdrop.js
@@ -167,6 +167,10 @@ YUI.add('moodle-core-dragdrop', function(Y) {
// this.lastdroptarget (ghost node we use for indicating where to drop)
e.drag = e.target;
e.drop = this.lastdroptarget;
+ // Check that drag object belongs to correct group
+ if (!this.in_group(e.drag)) {
+ return;
+ }
// Check that drop object belong to correct group
if (!e.drop || !e.drop.inGroup(this.groups)) {
return;