docs: function () {
              var param = {
                  width : 0,
                  activeIconIndex : 0
              }, oSelf = this;
              ariaUtilsArray.forEach(this._iconsLeft, function (value) {
                  oSelf._computeIconSize(value, param);
              });
              ariaUtilsArray.forEach(this._iconsRight, function (value) {
                  oSelf._computeIconSize(value, param);
              });
              this._iconsWidth = param.width;
          }