rhbz#1690645 null deref of pEntry when GetCurEntry return null

in GetFocusRect at SvTreeList::GetDepth

code in since....

commit 76c549eb
Author: Steve Yin <steve_y@apache.org>
Date:   Fri Nov 29 13:03:27 2013 +0000

    Integrate branch of IAccessible2

Change-Id: Ida6cb934c94037c861c7d5da005226f32599b5fc
Reviewed-on: https://gerrit.libreoffice.org/69460
Tested-by: Jenkins
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>

sw/source/uibase/utlui/content.cxx

@@ -2844,15 +2844,14 @@ void SwContentTree::KeyInput(const KeyEvent& rEvent)
     //and realize multi-selection .
     else if(aCode.GetCode() == KEY_SPACE && 0 == aCode.GetModifier())
     {
-
         SvTreeListEntry* pEntry = GetCurEntry();
-        if( GetChildCount( pEntry ) == 0 )
-            m_bIsKeySpace = true;
-        Point tempPoint = GetEntryPosition( pEntry );//Change from "GetEntryPos" to "GetEntryPosition" for acc migration
-        m_aOldRectangle = GetFocusRect( pEntry,tempPoint.Y() );
-
         if(pEntry)
         {
+            if( GetChildCount( pEntry ) == 0 )
+                m_bIsKeySpace = true;
+            Point tempPoint = GetEntryPosition( pEntry );//Change from "GetEntryPos" to "GetEntryPosition" for acc migration
+            m_aOldRectangle = GetFocusRect(pEntry, tempPoint.Y());
+
             if (State::HIDDEN != m_eState)
             {
                 if (State::CONSTANT == m_eState)