code: function() {
          var me = this,
              inputEl = me.inputEl;
              
          me.callParent();
          if (inputEl) {
              inputEl.dom.disabled = true;
              if (me.hasActiveError()) {
                  // clear invalid state since the field is now disabled
                  me.clearInvalid();
                  me.needsValidateOnEnable = true;
              }
          }
      }
docs: private