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/*! UIkit 2.21.0 | http://www.getuikit.com | (c) 2014 YOOtheme | MIT License */
(function(UI) {
"use strict";
UI.component('smoothScroll', {
boot: function() {
// init code
UI.$html.on("click.smooth-scroll.uikit", "[data-uk-smooth-scroll]", function(e) {
var ele = UI.$(this);
if (!ele.data("smoothScroll")) {
var obj = UI.smoothScroll(ele, UI.Utils.options(ele.attr("data-uk-smooth-scroll")));
ele.trigger("click");
}
return false;
});
},
init: function() {
var $this = this;
this.on("click", function(e) {
e.preventDefault();
scrollToElement(UI.$(this.hash).length ? UI.$(this.hash) : UI.$("body"), $this.options);
});
}
});
function scrollToElement(ele, options) {
options = UI.$.extend({
duration: 1000,
transition: 'easeOutExpo',
offset: 0,
complete: function(){}
}, options);
// get / set parameters
var target = ele.offset().top - options.offset,
docheight = UI.$doc.height(),
winheight = window.innerHeight;
if ((target + winheight) > docheight) {
target = docheight - winheight;
}
// animate to target, fire callback when done
UI.$("html,body").stop().animate({scrollTop: target}, options.duration, options.transition).promise().done(options.complete);
}
UI.Utils.scrollToElement = scrollToElement;
if (!UI.$.easing.easeOutExpo) {
UI.$.easing.easeOutExpo = function(x, t, b, c, d) { return (t == d) ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b; };
}
})(UIkit);
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