code: public boolean isEditingDisabled() {
  
          return (m_data == null)
              || CmsStringUtil.isNotEmptyOrWhitespaceOnly(m_data.getNoEditReason())
              || (m_lockStatus == LockStatus.failed);
      }
docs: Checks if the page editing features should be disabled.<p>
  
  @return true if the page editing features should be disabled