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8 lines
7.8 KiB
8 lines
7.8 KiB
7 years ago
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!function(){"use strict";/**
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* @preserve FastClick: polyfill to remove click delays on browsers with touch UIs.
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*
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* @codingstandard ftlabs-jsv2
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* @copyright The Financial Times Limited [All Rights Reserved]
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* @license MIT License (see LICENSE.txt)
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*/
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function a(b,d){function e(a,b){return function(){return a.apply(b,arguments)}}var f;if(d=d||{},this.trackingClick=!1,this.trackingClickStart=0,this.targetElement=null,this.touchStartX=0,this.touchStartY=0,this.lastTouchIdentifier=0,this.touchBoundary=d.touchBoundary||10,this.layer=b,this.tapDelay=d.tapDelay||200,this.tapTimeout=d.tapTimeout||700,!a.notNeeded(b)){for(var g=["onMouse","onClick","onTouchStart","onTouchMove","onTouchEnd","onTouchCancel"],h=this,i=0,j=g.length;j>i;i++)h[g[i]]=e(h[g[i]],h);c&&(b.addEventListener("mouseover",this.onMouse,!0),b.addEventListener("mousedown",this.onMouse,!0),b.addEventListener("mouseup",this.onMouse,!0)),b.addEventListener("click",this.onClick,!0),b.addEventListener("touchstart",this.onTouchStart,!1),b.addEventListener("touchmove",this.onTouchMove,!1),b.addEventListener("touchend",this.onTouchEnd,!1),b.addEventListener("touchcancel",this.onTouchCancel,!1),Event.prototype.stopImmediatePropagation||(b.removeEventListener=function(a,c,d){var e=Node.prototype.removeEventListener;"click"===a?e.call(b,a,c.hijacked||c,d):e.call(b,a,c,d)},b.addEventListener=function(a,c,d){var e=Node.prototype.addEventListener;"click"===a?e.call(b,a,c.hijacked||(c.hijacked=function(a){a.propagationStopped||c(a)}),d):e.call(b,a,c,d)}),"function"==typeof b.onclick&&(f=b.onclick,b.addEventListener("click",function(a){f(a)},!1),b.onclick=null)}}var b=navigator.userAgent.indexOf("Windows Phone")>=0,c=navigator.userAgent.indexOf("Android")>0&&!b,d=/iP(ad|hone|od)/.test(navigator.userAgent)&&!b,e=d&&/OS 4_\d(_\d)?/.test(navigator.userAgent),f=d&&/OS [6-7]_\d/.test(navigator.userAgent),g=navigator.userAgent.indexOf("BB10")>0;a.prototype.needsClick=function(a){switch(a.nodeName.toLowerCase()){case"button":case"select":case"textarea":if(a.disabled)return!0;break;case"input":if(d&&"file"===a.type||a.disabled)return!0;break;case"label":case"iframe":case"video":return!0}return/\bneedsclick\b/.test(a.className)},a.prototype.needsFocus=function(a){switch(a.nodeName.toLowerCase()){case"textarea":return!0;case"select":return!c;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)}},a.prototype.sendClick=function(a,b){var c,d;document.activeElement&&document.activeElement!==a&&document.activeElement.blur(),d=b.changedTouches[0],c=document.createEvent("MouseEvents"),c.initMouseEvent(this.determineEventType(a),!0,!0,window,1,d.screenX,d.screenY,d.clientX,d.clientY,!1,!1,!1,!1,0,null),c.forwardedTouchEvent=!0,a.dispatchEvent(c)},a.prototype.determineEventType=function(a){return c&&"select"===a.tagName.toLowerCase()?"mousedown":"click"},a.prototype.focus=function(a){var b;d&&a.setSelectionRange&&0!==a.type.indexOf("date")&&"time"!==a.type&&"month"!==a.type?(b=a.value.length,a.setSelectionRange(b,b)):a.focus()},a.prototype.updateScrollParent=function(a){var b,c;if(b=a.fastClickScrollParent,!b||!b.contains(a)){c=a;do{if(c.scrollHeight>c.offsetHeight){b=c,a.fastClickScrollParent=c;break}c=c.parentElement}while(c)}b&&(b.fastClickLastScrollTop=b.scrollTop)},a.prototype.getTargetElementFromEventTarget=function(a){return a.nodeType===Node.TEXT_NODE?a.parentNode:a},a.prototype.onTouchStart=function(a){var b,c,f;if(a.targetTouches.length>1)return!0;if(b=this.getTargetElementFromEventTarget(a.target),c=a.targetTouches[0],d){if(f=window.getSelection(),f.rangeCount&&!f.isCollapsed)return!0;if(!e){if(c.identifier&&c.identifier===this.lastTouchIdentifier)return a.preventDefault(),!1;this.lastTouchIdentifier=c.identifier,this.updateScrollParent(b)}}return this.trackingClick=!0,this.trackingClickStart=a.timeStamp,this.targetElement=b,this.touchStartX=c.pageX,this.touchStartY=c.pageY,a.timeStamp-this.lastClickTime<this.tapDelay&&a.preventDefault(),!0},a.prototype.touchHasMoved=function(a){var b=a.changedTouches[0],c=this.touchBoundary;return Math.abs(b.pageX-this.touchStartX)>c||Math.abs(b.pageY-this.touchStartY)>c?!0:!1},a.prototype.onTouchMove=function(a){return this.trackingClick?((this.targetElement!==
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