code: function setValue(s) {
              var txt = this.getValue();
              if (txt !== s){
                  if (this.position !== null) {
                      this.position.setOffset(0);
                  }
                  this.scrollManager.scrollTo(0, 0);
                  this.$super(s);
              }
              return this;
          }
docs: Set the text content of the text field component
  @param {String} s a text the text field component has to be filled
  @method setValue
  @chainable