*/},{key:"_calc",value:function _calc(e,t){e&&this._setSizes();if(!this.canStick){this.isStuck&&this._removeSticky(true);return false}t||(t=window.pageYOffset);t>=this.topPoint?t<=this.bottomPoint?this.isStuck||this._setSticky():this.isStuck&&this._removeSticky(false):this.isStuck&&this._removeSticky(true)}},{key:"_setSticky",value:function _setSticky(){var e=this,t=this.options.stickTo,i="top"===t?"marginTop":"marginBottom",n="top"===t?"bottom":"top",s={};s[i]="".concat(this.options[i],"em");s[t]=0;s[n]="auto";this.isStuck=true;this.$element.removeClass("is-anchored is-at-".concat(n)).addClass("is-stuck is-at-".concat(t)).css(s).trigger("sticky.zf.stuckto:".concat(t));this.$element.on("transitionend webkitTransitionEnd oTransitionEnd otransitionend MSTransitionEnd",(function(){e._setSizes()}))}