From 83985d7856597962518bd1402f03e6e881c89b57 Mon Sep 17 00:00:00 2001
From: Matt Meisberger <mmeisberger@webcourseworks.com>
Date: Sun, 5 Aug 2012 15:06:04 -0500
Subject: [PATCH] MDL-34742 - adding ability to move blocks into empty column

---
 lib/blocklib.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/blocklib.php b/lib/blocklib.php
index 90d990cd708..0dad6f632cd 100644
--- a/lib/blocklib.php
+++ b/lib/blocklib.php
@@ -454,6 +454,12 @@ class block_manager {
         if (!$this->page->theme->enable_dock) {
             return false;
         }
+
+        // Do not dock the region when the user attemps to move a block.
+        if ($this->movingblock) {
+            return false;
+        }
+
         $this->check_is_loaded();
         $this->ensure_content_created($region, $output);
         foreach($this->visibleblockcontent[$region] as $instance) {