/
jquery.smooth-scroll.min.js
7 lines (7 loc) · 2.59 KB
/
jquery.smooth-scroll.min.js
1
2
3
4
5
6
7
/*!
* Smooth Scroll - v1.4.10 - 2013-03-02
* https://github.com/kswedberg/jquery-smooth-scroll
* Copyright (c) 2013 Karl Swedberg
* Licensed MIT (https://github.com/kswedberg/jquery-smooth-scroll/blob/master/LICENSE-MIT)
*/
(function(l){function t(l){return l.replace(/(:|\.)/g,"\\$1")}var e="1.4.10",o={exclude:[],excludeWithin:[],offset:0,direction:"top",scrollElement:null,scrollTarget:null,beforeScroll:function(){},afterScroll:function(){},easing:"swing",speed:400,autoCoefficent:2},r=function(t){var e=[],o=!1,r=t.dir&&"left"==t.dir?"scrollLeft":"scrollTop";return this.each(function(){if(this!=document&&this!=window){var t=l(this);t[r]()>0?e.push(this):(t[r](1),o=t[r]()>0,o&&e.push(this),t[r](0))}}),e.length||this.each(function(){"BODY"===this.nodeName&&(e=[this])}),"first"===t.el&&e.length>1&&(e=[e[0]]),e};l.fn.extend({scrollable:function(l){var t=r.call(this,{dir:l});return this.pushStack(t)},firstScrollable:function(l){var t=r.call(this,{el:"first",dir:l});return this.pushStack(t)},smoothScroll:function(e){e=e||{};var o=l.extend({},l.fn.smoothScroll.defaults,e),r=l.smoothScroll.filterPath(location.pathname);return this.unbind("click.smoothscroll").bind("click.smoothscroll",function(e){var n=this,s=l(this),c=o.exclude,i=o.excludeWithin,a=0,f=0,h=!0,u={},d=location.hostname===n.hostname||!n.hostname,m=o.scrollTarget||(l.smoothScroll.filterPath(n.pathname)||r)===r,p=t(n.hash);if(o.scrollTarget||d&&m&&p){for(;h&&c.length>a;)s.is(t(c[a++]))&&(h=!1);for(;h&&i.length>f;)s.closest(i[f++]).length&&(h=!1)}else h=!1;h&&(e.preventDefault(),l.extend(u,o,{scrollTarget:o.scrollTarget||p,link:n}),l.smoothScroll(u))}),this}}),l.smoothScroll=function(t,e){var o,r,n,s,c=0,i="offset",a="scrollTop",f={},h={};"number"==typeof t?(o=l.fn.smoothScroll.defaults,n=t):(o=l.extend({},l.fn.smoothScroll.defaults,t||{}),o.scrollElement&&(i="position","static"==o.scrollElement.css("position")&&o.scrollElement.css("position","relative"))),o=l.extend({link:null},o),a="left"==o.direction?"scrollLeft":a,o.scrollElement?(r=o.scrollElement,c=r[a]()):r=l("html, body").firstScrollable(),o.beforeScroll.call(r,o),n="number"==typeof t?t:e||l(o.scrollTarget)[i]()&&l(o.scrollTarget)[i]()[o.direction]||0,f[a]=n+c+o.offset,s=o.speed,"auto"===s&&(s=f[a]||r.scrollTop(),s/=o.autoCoefficent),h={duration:s,easing:o.easing,complete:function(){o.afterScroll.call(o.link,o)}},o.step&&(h.step=o.step),r.length?r.stop().animate(f,h):o.afterScroll.call(o.link,o)},l.smoothScroll.version=e,l.smoothScroll.filterPath=function(l){return l.replace(/^\//,"").replace(/(index|default).[a-zA-Z]{3,4}$/,"").replace(/\/$/,"")},l.fn.smoothScroll.defaults=o})(jQuery);