tocca.min.js

!function(doc,win){if("function"!=typeof doc.createEvent)return!1;var pointerId,currX,currY,cachedX,cachedY,timestamp,target,dblTapTimer,longtapTimer,pointerEvent=function(type){var lo=type.toLowerCase(),ms="MS"+type;return navigator.msPointerEnabled?ms:!!window.PointerEvent&&lo},touchEvent=function(name){return"on"+name in window&&name},defaults={useJquery:!win.IGNORE_JQUERY&&"undefined"!=typeof jQuery,swipeThreshold:win.SWIPE_THRESHOLD||100,tapThreshold:win.TAP_THRESHOLD||150,dbltapThreshold:win.DBL_TAP_THRESHOLD||200,longtapThreshold:win.LONG_TAP_THRESHOLD||1e3,tapPrecision:win.TAP_PRECISION/2||30,justTouchEvents:win.JUST_ON_TOUCH_DEVICES},wasTouch=!1,touchevents={touchstart:touchEvent("touchstart")||pointerEvent("PointerDown"),touchend:touchEvent("touchend")||pointerEvent("PointerUp"),touchmove:touchEvent("touchmove")||pointerEvent("PointerMove")},isTheSameFingerId=function(e){return!e.pointerId||void 0===pointerId||e.pointerId===pointerId},setListener=function(elm,events,callback){for(var eventsArray=events.split(" "),i=eventsArray.length;i--;)elm.addEventListener(eventsArray[i],callback,!1)},getPointerEvent=function(event){return event.targetTouches?event.targetTouches[0]:event},getTimestamp=function(){return(new Date).getTime()},sendEvent=function(elm,eventName,originalEvent,data){var customEvent=doc.createEvent("Event");if(customEvent.originalEvent=originalEvent,data=data||{},data.x=currX,data.y=currY,data.distance=data.distance,defaults.useJquery&&(customEvent=jQuery.Event(eventName,{originalEvent:originalEvent}),jQuery(elm).trigger(customEvent,data)),customEvent.initEvent){for(var key in data)customEvent[key]=data[key];customEvent.initEvent(eventName,!0,!0),elm.dispatchEvent(customEvent)}for(;elm;)elm["on"+eventName]&&elm["on"+eventName](customEvent),elm=elm.parentNode},onTouchStart=function(e){if(isTheSameFingerId(e)&&(pointerId=e.pointerId,"mousedown"!==e.type&&(wasTouch=!0),"mousedown"!==e.type||!wasTouch)){var pointer=getPointerEvent(e);cachedX=currX=pointer.pageX,cachedY=currY=pointer.pageY,longtapTimer=setTimeout(function(){sendEvent(e.target,"longtap",e),target=e.target},defaults.longtapThreshold),timestamp=getTimestamp(),tapNum++}},onTouchEnd=function(e){if(isTheSameFingerId(e)){if(pointerId=void 0,"mouseup"===e.type&&wasTouch)return void(wasTouch=!1);var eventsArr=[],now=getTimestamp(),deltaY=cachedY-currY,deltaX=cachedX-currX;if(clearTimeout(dblTapTimer),clearTimeout(longtapTimer),deltaX<=-defaults.swipeThreshold&&eventsArr.push("swiperight"),deltaX>=defaults.swipeThreshold&&eventsArr.push("swipeleft"),deltaY<=-defaults.swipeThreshold&&eventsArr.push("swipedown"),deltaY>=defaults.swipeThreshold&&eventsArr.push("swipeup"),eventsArr.length){for(var i=0;i<eventsArr.length;i++){var eventName=eventsArr[i];sendEvent(e.target,eventName,e,{distance:{x:Math.abs(deltaX),y:Math.abs(deltaY)}})}tapNum=0}else cachedX>=currX-defaults.tapPrecision&&cachedX<=currX+defaults.tapPrecision&&cachedY>=currY-defaults.tapPrecision&&cachedY<=currY+defaults.tapPrecision&&timestamp+defaults.tapThreshold-now>=0&&(sendEvent(e.target,tapNum>=2&&target===e.target?"dbltap":"tap",e),target=e.target),dblTapTimer=setTimeout(function(){tapNum=0},defaults.dbltapThreshold)}},onTouchMove=function(e){if(isTheSameFingerId(e)&&("mousemove"!==e.type||!wasTouch)){var pointer=getPointerEvent(e);currX=pointer.pageX,currY=pointer.pageY}},tapNum=0;setListener(doc,touchevents.touchstart+(defaults.justTouchEvents?"":" mousedown"),onTouchStart),setListener(doc,touchevents.touchend+(defaults.justTouchEvents?"":" mouseup"),onTouchEnd),setListener(doc,touchevents.touchmove+(defaults.justTouchEvents?"":" mousemove"),onTouchMove),win.tocca=function(options){for(var opt in options)defaults[opt]=options[opt];return defaults}}(document,window);