/libraries/bootstrap/js/bootstrap-scrollspy.min.js

1!function(b){function a(f,e){var g=b.proxy(this.process,this),c=b(f).is("body")?b(window):b(f),d;this.options=b.extend({},b.fn.scrollspy.defaults,e);this.$scrollElement=c.on("scroll.scroll-spy.data-api",g);this.selector=(this.options.target||((d=b(f).attr("href"))&&d.replace(/.*(?=#[^\s]+$)/,""))||"")+" .nav li > a";this.$body=b("body");this.refresh();this.process()}a.prototype={constructor:a,refresh:function(){var c=this,d;this.offsets=b([]);this.targets=b([]);d=this.$body.find(this.selector).map(function(){var f=b(this),e=f.data("target")||f.attr("href"),g=/^#\w/.test(e)&&b(e);return(g&&g.length&&[[g.position().top,e]])||null}).sort(function(f,e){return f[0]-e[0]}).each(function(){c.offsets.push(this[0]);c.targets.push(this[1])})},process:function(){var h=this.$scrollElement.scrollTop()+this.options.offset,e=this.$scrollElement[0].scrollHeight||this.$body[0].scrollHeight,g=e-this.$scrollElement.height(),f=this.offsets,c=this.targets,j=this.activeTarget,d;if(h>=g){return j!=(d=c.last()[0])&&this.activate(d)}for(d=f.length;d--;){j!=c[d]&&h>=f[d]&&(!f[d+1]||h<=f[d+1])&&this.activate(c[d])}},activate:function(e){var d,c;this.activeTarget=e;b(this.selector).parent(".active").removeClass("active");c=this.selector+'[data-target="'+e+'"],'+this.selector+'[href="'+e+'"]';d=b(c).parent("li").addClass("active");if(d.parent(".dropdown-menu").length){d=d.closest("li.dropdown").addClass("active")}d.trigger("activate")}};b.fn.scrollspy=function(c){return this.each(function(){var f=b(this),e=f.data("scrollspy"),d=typeof c=="object"&&c;if(!e){f.data("scrollspy",(e=new a(this,d)))}if(typeof c=="string"){e[c]()}})};b.fn.scrollspy.Constructor=a;b.fn.scrollspy.defaults={offset:10};b(window).on("load",function(){b('[data-spy="scroll"]').each(function(){var c=b(this);c.scrollspy(c.data())})})}(window.jQuery);