jquery.scrollintoview.min.js

/*
 * jQuery scrollintoview() plugin and :scrollable selector filter
 *
 * Version 1.8 (14 Jul 2011)
 * Requires jQuery 1.4 or newer
 *
 * Copyright (c) 2011 Robert Koritnik
 * Licensed under the terms of the MIT license
 * http://www.opensource.org/licenses/mit-license.php
 */
(function(f){var c={vertical:{x:false,y:true},horizontal:{x:true,y:false},both:{x:true,y:true},x:{x:true,y:false},y:{x:false,y:true}};var b={duration:"fast",direction:"both"};var e=/^(?:html)$/i;var g=function(k,j){j=j||(document.defaultView&&document.defaultView.getComputedStyle?document.defaultView.getComputedStyle(k,null):k.currentStyle);var i=document.defaultView&&document.defaultView.getComputedStyle?true:false;var h={top:(parseFloat(i?j.borderTopWidth:f.css(k,"borderTopWidth"))||0),left:(parseFloat(i?j.borderLeftWidth:f.css(k,"borderLeftWidth"))||0),bottom:(parseFloat(i?j.borderBottomWidth:f.css(k,"borderBottomWidth"))||0),right:(parseFloat(i?j.borderRightWidth:f.css(k,"borderRightWidth"))||0)};return{top:h.top,left:h.left,bottom:h.bottom,right:h.right,vertical:h.top+h.bottom,horizontal:h.left+h.right}};var d=function(h){var j=f(window);var i=e.test(h[0].nodeName);return{border:i?{top:0,left:0,bottom:0,right:0}:g(h[0]),scroll:{top:(i?j:h).scrollTop(),left:(i?j:h).scrollLeft()},scrollbar:{right:i?0:h.innerWidth()-h[0].clientWidth,bottom:i?0:h.innerHeight()-h[0].clientHeight},rect:(function(){var k=h[0].getBoundingClientRect();return{top:i?0:k.top,left:i?0:k.left,bottom:i?h[0].clientHeight:k.bottom,right:i?h[0].clientWidth:k.right}})()}};f.fn.extend({scrollintoview:function(j){j=f.extend({},b,j);j.direction=c[typeof(j.direction)==="string"&&j.direction.toLowerCase()]||c.both;var n="";if(j.direction.x===true){n="horizontal"}if(j.direction.y===true){n=n?"both":"vertical"}var l=this.eq(0);var i=l.closest(":scrollable("+n+")");if(i.length>0){i=i.eq(0);var m={e:d(l),s:d(i)};var h={top:m.e.rect.top-(m.s.rect.top+m.s.border.top),bottom:m.s.rect.bottom-m.s.border.bottom-m.s.scrollbar.bottom-m.e.rect.bottom,left:m.e.rect.left-(m.s.rect.left+m.s.border.left),right:m.s.rect.right-m.s.border.right-m.s.scrollbar.right-m.e.rect.right};var k={};if(j.direction.y===true){if(h.top<0){k.scrollTop=m.s.scroll.top+h.top}else{if(h.top>0&&h.bottom<0){k.scrollTop=m.s.scroll.top+Math.min(h.top,-h.bottom)}}}if(j.direction.x===true){if(h.left<0){k.scrollLeft=m.s.scroll.left+h.left}else{if(h.left>0&&h.right<0){k.scrollLeft=m.s.scroll.left+Math.min(h.left,-h.right)}}}if(!f.isEmptyObject(k)){if(e.test(i[0].nodeName)){i=f("html,body")}i.animate(k,j.duration).eq(0).queue(function(o){f.isFunction(j.complete)&&j.complete.call(i[0]);o()})}else{f.isFunction(j.complete)&&j.complete.call(i[0])}}return this}});var a={auto:true,scroll:true,visible:false,hidden:false};f.extend(f.expr[":"],{scrollable:function(k,i,n,h){var m=c[typeof(n[3])==="string"&&n[3].toLowerCase()]||c.both;var l=(document.defaultView&&document.defaultView.getComputedStyle?document.defaultView.getComputedStyle(k,null):k.currentStyle);var o={x:a[l.overflowX.toLowerCase()]||false,y:a[l.overflowY.toLowerCase()]||false,isRoot:e.test(k.nodeName)};if(!o.x&&!o.y&&!o.isRoot){return false}var j={height:{scroll:k.scrollHeight,client:k.clientHeight},width:{scroll:k.scrollWidth,client:k.clientWidth},scrollableX:function(){return(o.x||o.isRoot)&&this.width.scroll>this.width.client},scrollableY:function(){return(o.y||o.isRoot)&&this.height.scroll>this.height.client}};return m.y&&j.scrollableY()||m.x&&j.scrollableX()}})})(jQuery);