/*
 fastclick: polyfill to remove click delays on browsers with touch uis.
 @codingstandard ftlabs-jsv2
 @copyright the financial times limited [all rights reserved]
 @license mit license (see license.txt)
*/
(function(){function c(a,b){function d(a,b){return function(){return a.apply(b,arguments)}}var f;b=b||{};this.trackingclick=!1;this.trackingclickstart=0;this.targetelement=null;this.lasttouchidentifier=this.touchstarty=this.touchstartx=0;this.touchboundary=b.touchboundary||10;this.layer=a;this.tapdelay=b.tapdelay||200;this.taptimeout=b.taptimeout||700;if(!c.notneeded(a)){b="onmouse onclick ontouchstart ontouchmove ontouchend ontouchcancel".split(" ");for(var e=0,h=b.length;e<h;e++)this[b[e]]=d(this[b[e]],
this);g&&(a.addeventlistener("mouseover",this.onmouse,!0),a.addeventlistener("mousedown",this.onmouse,!0),a.addeventlistener("mouseup",this.onmouse,!0));a.addeventlistener("click",this.onclick,!0);a.addeventlistener("touchstart",this.ontouchstart,!1);a.addeventlistener("touchmove",this.ontouchmove,!1);a.addeventlistener("touchend",this.ontouchend,!1);a.addeventlistener("touchcancel",this.ontouchcancel,!1);event.prototype.stopimmediatepropagation||(a.removeeventlistener=function(b,d,c){var f=node.prototype.removeeventlistener;
"click"===b?f.call(a,b,d.hijacked||d,c):f.call(a,b,d,c)},a.addeventlistener=function(b,d,c){var f=node.prototype.addeventlistener;"click"===b?f.call(a,b,d.hijacked||(d.hijacked=function(a){a.propagationstopped||d(a)}),c):f.call(a,b,d,c)});"function"===typeof a.onclick&&(f=a.onclick,a.addeventlistener("click",function(a){f(a)},!1),a.onclick=null)}}var h=0<=navigator.useragent.indexof("windows phone"),g=0<navigator.useragent.indexof("android")&&!h,e=/ip(ad|hone|od)/.test(navigator.useragent)&&!h,k=
e&&/os 4_\d(_\d)?/.test(navigator.useragent),l=e&&/os [6-7]_\d/.test(navigator.useragent),m=0<navigator.useragent.indexof("bb10");c.prototype.needsclick=function(a){switch(a.nodename.tolowercase()){case "button":case "select":case "textarea":if(a.disabled)return!0;break;case "input":if(e&&"file"===a.type||a.disabled)return!0;break;case "label":case "iframe":case "video":return!0}return/\bneedsclick\b/.test(a.classname)};c.prototype.needsfocus=function(a){switch(a.nodename.tolowercase()){case "textarea":return!0;
case "select":return!g;case "input":switch(a.type){case "button":case "checkbox":case "file":case "image":case "radio":case "submit":return!1}return!a.disabled&&!a.readonly;default:return/\bneedsfocus\b/.test(a.classname)}};c.prototype.sendclick=function(a,b){var d;document.activeelement&&document.activeelement!==a&&document.activeelement.blur();d=b.changedtouches[0];b=document.createevent("mouseevents");b.initmouseevent(this.determineeventtype(a),!0,!0,window,1,d.screenx,d.screeny,d.clientx,d.clienty,
!1,!1,!1,!1,0,null);b.forwardedtouchevent=!0;a.dispatchevent(b)};c.prototype.determineeventtype=function(a){return g&&"select"===a.tagname.tolowercase()?"mousedown":"click"};c.prototype.focus=function(a){var b;e&&a.setselectionrange&&0!==a.type.indexof("date")&&"time"!==a.type&&"month"!==a.type?(b=a.value.length,a.setselectionrange(b,b)):a.focus()};c.prototype.updatescrollparent=function(a){var b,d;b=a.fastclickscrollparent;if(!b||!b.contains(a)){d=a;do{if(d.scrollheight>d.offsetheight){b=d;a.fastclickscrollparent=
d;break}d=d.parentelement}while(d)}b&&(b.fastclicklastscrolltop=b.scrolltop)};c.prototype.gettargetelementfromeventtarget=function(a){return a.nodetype===node.text_node?a.parentnode:a};c.prototype.ontouchstart=function(a){var b,d,c;if(1<a.targettouches.length)return!0;b=this.gettargetelementfromeventtarget(a.target);d=a.targettouches[0];if(e){c=window.getselection();if(c.rangecount&&!c.iscollapsed)return!0;if(!k){if(d.identifier&&d.identifier===this.lasttouchidentifier)return a.preventdefault(),!1;
this.lasttouchidentifier=d.identifier;this.updatescrollparent(b)}}this.trackingclick=!0;this.trackingclickstart=a.timestamp;this.targetelement=b;this.touchstartx=d.pagex;this.touchstarty=d.pagey;a.timestamp-this.lastclicktime<this.tapdelay&&a.preventdefault();return!0};c.prototype.touchhasmoved=function(a){a=a.changedtouches[0];var b=this.touchboundary;return math.abs(a.pagex-this.touchstartx)>b||math.abs(a.pagey-this.touchstarty)>b?!0:!1};c.prototype.ontouchmove=function(a){if(!this.trackingclick)return!0;
if(this.targetelement!==this.gettargetelementfromeventtarget(a.target)||this.touchhasmoved(a))this.trackingclick=!1,this.targetelement=null;return!0};c.prototype.findcontrol=function(a){return void 0!==a.control?a.control:a.htmlfor?document.getelementbyid(a.htmlfor):a.queryselector("button, input:not([type=hidden]), keygen, meter, output, progress, select, textarea")};c.prototype.ontouchend=function(a){var b,d,c=this.targetelement;if(!this.trackingclick)return!0;if(a.timestamp-this.lastclicktime<
this.tapdelay)return this.cancelnextclick=!0;if(a.timestamp-this.trackingclickstart>this.taptimeout)return!0;this.cancelnextclick=!1;this.lastclicktime=a.timestamp;b=this.trackingclickstart;this.trackingclick=!1;this.trackingclickstart=0;l&&(d=a.changedtouches[0],c=document.elementfrompoint(d.pagex-window.pagexoffset,d.pagey-window.pageyoffset)||c,c.fastclickscrollparent=this.targetelement.fastclickscrollparent);d=c.tagname.tolowercase();if("label"===d){if(b=this.findcontrol(c)){this.focus(c);if(g)return!1;
c=b}}else if(this.needsfocus(c)){if(100<a.timestamp-b||e&&window.top!==window&&"input"===d)return this.targetelement=null,!1;this.focus(c);this.sendclick(c,a);e&&"select"===d||(this.targetelement=null,a.preventdefault());return!1}if(e&&!k&&(b=c.fastclickscrollparent)&&b.fastclicklastscrolltop!==b.scrolltop)return!0;this.needsclick(c)||(a.preventdefault(),this.sendclick(c,a));return!1};c.prototype.ontouchcancel=function(){this.trackingclick=!1;this.targetelement=null};c.prototype.onmouse=function(a){return this.targetelement&&
!a.forwardedtouchevent&&a.cancelable?!this.needsclick(this.targetelement)||this.cancelnextclick?(a.stopimmediatepropagation?a.stopimmediatepropagation():a.propagationstopped=!0,a.stoppropagation(),a.preventdefault(),!1):!0:!0};c.prototype.onclick=function(a){if(this.trackingclick)return this.targetelement=null,this.trackingclick=!1,!0;if("submit"===a.target.type&&0===a.detail)return!0;a=this.onmouse(a);a||(this.targetelement=null);return a};c.prototype.destroy=function(){var a=this.layer;g&&(a.removeeventlistener("mouseover",
this.onmouse,!0),a.removeeventlistener("mousedown",this.onmouse,!0),a.removeeventlistener("mouseup",this.onmouse,!0));a.removeeventlistener("click",this.onclick,!0);a.removeeventlistener("touchstart",this.ontouchstart,!1);a.removeeventlistener("touchmove",this.ontouchmove,!1);a.removeeventlistener("touchend",this.ontouchend,!1);a.removeeventlistener("touchcancel",this.ontouchcancel,!1)};c.notneeded=function(a){var b,c;if("undefined"===typeof window.ontouchstart)return!0;if(c=+(/chrome\/([0-9]+)/.exec(navigator.useragent)||
[,0])[1])if(g){if((b=document.queryselector("meta[name=viewport]"))&&(-1!==b.content.indexof("user-scalable=no")||31<c&&document.documentelement.scrollwidth<=window.outerwidth))return!0}else return!0;return m&&(b=navigator.useragent.match(/version\/([0-9]*)\.([0-9]*)/),10<=b[1]&&3<=b[2]&&(b=document.queryselector("meta[name=viewport]"))&&(-1!==b.content.indexof("user-scalable=no")||document.documentelement.scrollwidth<=window.outerwidth))||"none"===a.style.mstouchaction||"manipulation"===a.style.touchaction||
27<=+(/firefox\/([0-9]+)/.exec(navigator.useragent)||[,0])[1]&&(b=document.queryselector("meta[name=viewport]"))&&(-1!==b.content.indexof("user-scalable=no")||document.documentelement.scrollwidth<=window.outerwidth)?!0:"none"===a.style.touchaction||"manipulation"===a.style.touchaction?!0:!1};c.attach=function(a,b){return new c(a,b)};"function"===typeof define&&"object"===typeof define.amd&&define.amd?define(function(){return c}):"undefined"!==typeof module&&module.exports?(module.exports=c.attach,
module.exports.fastclick=c):window.fastclick=c})();(function(){$(function(){fastclick.attach(document.body)})})();