code: public List<CmsDialogElement> computeElements() {
  
          if (m_elementList == null) {
              m_elementList = computeElements(getCms(), getParamTempfile(), getElementLocale());
          }
          return m_elementList;
      }
docs: Creates a list of possible elements of a template from the template property "template-elements".<p>
  
  @return the list of elements in a String array with element name, nice name (if present) and mandatory flag