NN2019090901/public/static/weixin/lib/photoClip/hammer.js

/*! Hammer.JS - v2.0.4 - 2014-09-28
* http://hammerjs.github.io/
*
* Copyright (c) 2014 Jorik Tangelder;
* Licensed under the MIT license */(function(window,document,exportName,undefined){'use strict';var VENDOR_PREFIXES=['','webkit','moz','MS','ms','o'];var TEST_ELEMENT=document.createElement('div');var TYPE_FUNCTION='function';var round=Math.round;var abs=Math.abs;var now=Date.now;function setTimeoutContext(fn,timeout,context){return setTimeout(bindFn(fn,context),timeout);}
    function invokeArrayArg(arg,fn,context){if(Array.isArray(arg)){each(arg,context[fn],context);return true;}
        return false;}
    function each(obj,iterator,context){var i;if(!obj){return;}
        if(obj.forEach){obj.forEach(iterator,context);}else if(obj.length!==undefined){i=0;while(i<obj.length){iterator.call(context,obj[i],i,obj);i++;}}else{for(i in obj){obj.hasOwnProperty(i)&&iterator.call(context,obj[i],i,obj);}}}
    function extend(dest,src,merge){var keys=Object.keys(src);var i=0;while(i<keys.length){if(!merge||(merge&&dest[keys[i]]===undefined)){dest[keys[i]]=src[keys[i]];}
        i++;}
        return dest;}
    function merge(dest,src){return extend(dest,src,true);}
    function inherit(child,base,properties){var baseP=base.prototype,childP;childP=child.prototype=Object.create(baseP);childP.constructor=child;childP._super=baseP;if(properties){extend(childP,properties);}}
    function bindFn(fn,context){return function boundFn(){return fn.apply(context,arguments);};}
    function boolOrFn(val,args){if(typeof val==TYPE_FUNCTION){return val.apply(args?args[0]||undefined:undefined,args);}
        return val;}
    function ifUndefined(val1,val2){return(val1===undefined)?val2:val1;}
    function addEventListeners(target,types,handler){each(splitStr(types),function(type){target.addEventListener(type,handler,false);});}
    function removeEventListeners(target,types,handler){each(splitStr(types),function(type){target.removeEventListener(type,handler,false);});}
    function hasParent(node,parent){while(node){if(node==parent){return true;}
        node=node.parentNode;}
        return false;}
    function inStr(str,find){return str.indexOf(find)>-1;}
    function splitStr(str){return str.trim().split(/\s+/g);}
    function inArray(src,find,findByKey){if(src.indexOf&&!findByKey){return src.indexOf(find);}else{var i=0;while(i<src.length){if((findByKey&&src[i][findByKey]==find)||(!findByKey&&src[i]===find)){return i;}
        i++;}
        return-1;}}
    function toArray(obj){return Array.prototype.slice.call(obj,0);}
    function uniqueArray(src,key,sort){var results=[];var values=[];var i=0;while(i<src.length){var val=key?src[i][key]:src[i];if(inArray(values,val)<0){results.push(src[i]);}
        values[i]=val;i++;}
        if(sort){if(!key){results=results.sort();}else{results=results.sort(function sortUniqueArray(a,b){return a[key]>b[key];});}}
        return results;}
    function prefixed(obj,property){var prefix,prop;var camelProp=property[0].toUpperCase()+property.slice(1);var i=0;while(i<VENDOR_PREFIXES.length){prefix=VENDOR_PREFIXES[i];prop=(prefix)?prefix+camelProp:property;if(prop in obj){return prop;}
        i++;}
        return undefined;}
    var _uniqueId=1;function uniqueId(){return _uniqueId++;}
    function getWindowForElement(element){var doc=element.ownerDocument;return(doc.defaultView||doc.parentWindow);}
    var MOBILE_REGEX=/mobile|tablet|ip(ad|hone|od)|android/i;var SUPPORT_TOUCH=('ontouchstart'in window);var SUPPORT_POINTER_EVENTS=prefixed(window,'PointerEvent')!==undefined;var SUPPORT_ONLY_TOUCH=SUPPORT_TOUCH&&MOBILE_REGEX.test(navigator.userAgent);var INPUT_TYPE_TOUCH='touch';var INPUT_TYPE_PEN='pen';var INPUT_TYPE_MOUSE='mouse';var INPUT_TYPE_KINECT='kinect';var COMPUTE_INTERVAL=25;var INPUT_START=1;var INPUT_MOVE=2;var INPUT_END=4;var INPUT_CANCEL=8;var DIRECTION_NONE=1;var DIRECTION_LEFT=2;var DIRECTION_RIGHT=4;var DIRECTION_UP=8;var DIRECTION_DOWN=16;var DIRECTION_HORIZONTAL=DIRECTION_LEFT|DIRECTION_RIGHT;var DIRECTION_VERTICAL=DIRECTION_UP|DIRECTION_DOWN;var DIRECTION_ALL=DIRECTION_HORIZONTAL|DIRECTION_VERTICAL;var PROPS_XY=['x','y'];var PROPS_CLIENT_XY=['clientX','clientY'];function Input(manager,callback){var self=this;this.manager=manager;this.callback=callback;this.element=manager.element;this.target=manager.options.inputTarget;this.domHandler=function(ev){if(boolOrFn(manager.options.enable,[manager])){self.handler(ev);}};this.init();}
    Input.prototype={handler:function(){},init:function(){this.evEl&&addEventListeners(this.element,this.evEl,this.domHandler);this.evTarget&&addEventListeners(this.target,this.evTarget,this.domHandler);this.evWin&&addEventListeners(getWindowForElement(this.element),this.evWin,this.domHandler);},destroy:function(){this.evEl&&removeEventListeners(this.element,this.evEl,this.domHandler);this.evTarget&&removeEventListeners(this.target,this.evTarget,this.domHandler);this.evWin&&removeEventListeners(getWindowForElement(this.element),this.evWin,this.domHandler);}};function createInputInstance(manager){var Type;var inputClass=manager.options.inputClass;if(inputClass){Type=inputClass;}else if(SUPPORT_POINTER_EVENTS){Type=PointerEventInput;}else if(SUPPORT_ONLY_TOUCH){Type=TouchInput;}else if(!SUPPORT_TOUCH){Type=MouseInput;}else{Type=TouchMouseInput;}
        return new(Type)(manager,inputHandler);}
    function inputHandler(manager,eventType,input){var pointersLen=input.pointers.length;var changedPointersLen=input.changedPointers.length;var isFirst=(eventType&INPUT_START&&(pointersLen-changedPointersLen===0));var isFinal=(eventType&(INPUT_END|INPUT_CANCEL)&&(pointersLen-changedPointersLen===0));input.isFirst=!!isFirst;input.isFinal=!!isFinal;if(isFirst){manager.session={};}
        input.eventType=eventType;computeInputData(manager,input);manager.emit('hammer.input',input);manager.recognize(input);manager.session.prevInput=input;}
    function computeInputData(manager,input){var session=manager.session;var pointers=input.pointers;var pointersLength=pointers.length;if(!session.firstInput){session.firstInput=simpleCloneInputData(input);}
        if(pointersLength>1&&!session.firstMultiple){session.firstMultiple=simpleCloneInputData(input);}else if(pointersLength===1){session.firstMultiple=false;}
        var firstInput=session.firstInput;var firstMultiple=session.firstMultiple;var offsetCenter=firstMultiple?firstMultiple.center:firstInput.center;var center=input.center=getCenter(pointers);input.timeStamp=now();input.deltaTime=input.timeStamp-firstInput.timeStamp;input.angle=getAngle(offsetCenter,center);input.distance=getDistance(offsetCenter,center);computeDeltaXY(session,input);input.offsetDirection=getDirection(input.deltaX,input.deltaY);input.scale=firstMultiple?getScale(firstMultiple.pointers,pointers):1;input.rotation=firstMultiple?getRotation(firstMultiple.pointers,pointers):0;computeIntervalInputData(session,input);var target=manager.element;if(hasParent(input.srcEvent.target,target)){target=input.srcEvent.target;}
        input.target=target;}
    function computeDeltaXY(session,input){var center=input.center;var offset=session.offsetDelta||{};var prevDelta=session.prevDelta||{};var prevInput=session.prevInput||{};if(input.eventType===INPUT_START||prevInput.eventType===INPUT_END){prevDelta=session.prevDelta={x:prevInput.deltaX||0,y:prevInput.deltaY||0};offset=session.offsetDelta={x:center.x,y:center.y};}
        input.deltaX=prevDelta.x+(center.x-offset.x);input.deltaY=prevDelta.y+(center.y-offset.y);}
    function computeIntervalInputData(session,input){var last=session.lastInterval||input,deltaTime=input.timeStamp-last.timeStamp,velocity,velocityX,velocityY,direction;if(input.eventType!=INPUT_CANCEL&&(deltaTime>COMPUTE_INTERVAL||last.velocity===undefined)){var deltaX=last.deltaX-input.deltaX;var deltaY=last.deltaY-input.deltaY;var v=getVelocity(deltaTime,deltaX,deltaY);velocityX=v.x;velocityY=v.y;velocity=(abs(v.x)>abs(v.y))?v.x:v.y;direction=getDirection(deltaX,deltaY);session.lastInterval=input;}else{velocity=last.velocity;velocityX=last.velocityX;velocityY=last.velocityY;direction=last.direction;}
        input.velocity=velocity;input.velocityX=velocityX;input.velocityY=velocityY;input.direction=direction;}
    function simpleCloneInputData(input){var pointers=[];var i=0;while(i<input.pointers.length){pointers[i]={clientX:round(input.pointers[i].clientX),clientY:round(input.pointers[i].clientY)};i++;}
        return{timeStamp:now(),pointers:pointers,center:getCenter(pointers),deltaX:input.deltaX,deltaY:input.deltaY};}
    function getCenter(pointers){var pointersLength=pointers.length;if(pointersLength===1){return{x:round(pointers[0].clientX),y:round(pointers[0].clientY)};}
        var x=0,y=0,i=0;while(i<pointersLength){x+=pointers[i].clientX;y+=pointers[i].clientY;i++;}
        return{x:round(x/pointersLength),y:round(y/pointersLength)};}
    function getVelocity(deltaTime,x,y){return{x:x/deltaTime||0,y:y/deltaTime||0};}
    function getDirection(x,y){if(x===y){return DIRECTION_NONE;}
        if(abs(x)>=abs(y)){return x>0?DIRECTION_LEFT:DIRECTION_RIGHT;}
        return y>0?DIRECTION_UP:DIRECTION_DOWN;}
    function getDistance(p1,p2,props){if(!props){props=PROPS_XY;}
        var x=p2[props[0]]-p1[props[0]],y=p2[props[1]]-p1[props[1]];return Math.sqrt((x*x)+(y*y));}
    function getAngle(p1,p2,props){if(!props){props=PROPS_XY;}
        var x=p2[props[0]]-p1[props[0]],y=p2[props[1]]-p1[props[1]];return Math.atan2(y,x)*180/Math.PI;}
    function getRotation(start,end){return getAngle(end[1],end[0],PROPS_CLIENT_XY)-getAngle(start[1],start[0],PROPS_CLIENT_XY);}
    function getScale(start,end){return getDistance(end[0],end[1],PROPS_CLIENT_XY)/getDistance(start[0],start[1],PROPS_CLIENT_XY);}
    var MOUSE_INPUT_MAP={mousedown:INPUT_START,mousemove:INPUT_MOVE,mouseup:INPUT_END};var MOUSE_ELEMENT_EVENTS='mousedown';var MOUSE_WINDOW_EVENTS='mousemove mouseup';function MouseInput(){this.evEl=MOUSE_ELEMENT_EVENTS;this.evWin=MOUSE_WINDOW_EVENTS;this.allow=true;this.pressed=false;Input.apply(this,arguments);}
    inherit(MouseInput,Input,{handler:function MEhandler(ev){var eventType=MOUSE_INPUT_MAP[ev.type];if(eventType&INPUT_START&&ev.button===0){this.pressed=true;}
            if(eventType&INPUT_MOVE&&ev.which!==1){eventType=INPUT_END;}
            if(!this.pressed||!this.allow){return;}
            if(eventType&INPUT_END){this.pressed=false;}
            this.callback(this.manager,eventType,{pointers:[ev],changedPointers:[ev],pointerType:INPUT_TYPE_MOUSE,srcEvent:ev});}});var POINTER_INPUT_MAP={pointerdown:INPUT_START,pointermove:INPUT_MOVE,pointerup:INPUT_END,pointercancel:INPUT_CANCEL,pointerout:INPUT_CANCEL};var IE10_POINTER_TYPE_ENUM={2:INPUT_TYPE_TOUCH,3:INPUT_TYPE_PEN,4:INPUT_TYPE_MOUSE,5:INPUT_TYPE_KINECT};var POINTER_ELEMENT_EVENTS='pointerdown';var POINTER_WINDOW_EVENTS='pointermove pointerup pointercancel';if(window.MSPointerEvent){POINTER_ELEMENT_EVENTS='MSPointerDown';POINTER_WINDOW_EVENTS='MSPointerMove MSPointerUp MSPointerCancel';}
    function PointerEventInput(){this.evEl=POINTER_ELEMENT_EVENTS;this.evWin=POINTER_WINDOW_EVENTS;Input.apply(this,arguments);this.store=(this.manager.session.pointerEvents=[]);}
    inherit(PointerEventInput,Input,{handler:function PEhandler(ev){var store=this.store;var removePointer=false;var eventTypeNormalized=ev.type.toLowerCase().replace('ms','');var eventType=POINTER_INPUT_MAP[eventTypeNormalized];var pointerType=IE10_POINTER_TYPE_ENUM[ev.pointerType]||ev.pointerType;var isTouch=(pointerType==INPUT_TYPE_TOUCH);var storeIndex=inArray(store,ev.pointerId,'pointerId');if(eventType&INPUT_START&&(ev.button===0||isTouch)){if(storeIndex<0){store.push(ev);storeIndex=store.length-1;}}else if(eventType&(INPUT_END|INPUT_CANCEL)){removePointer=true;}
            if(storeIndex<0){return;}
            store[storeIndex]=ev;this.callback(this.manager,eventType,{pointers:store,changedPointers:[ev],pointerType:pointerType,srcEvent:ev});if(removePointer){store.splice(storeIndex,1);}}});var SINGLE_TOUCH_INPUT_MAP={touchstart:INPUT_START,touchmove:INPUT_MOVE,touchend:INPUT_END,touchcancel:INPUT_CANCEL};var SINGLE_TOUCH_TARGET_EVENTS='touchstart';var SINGLE_TOUCH_WINDOW_EVENTS='touchstart touchmove touchend touchcancel';function SingleTouchInput(){this.evTarget=SINGLE_TOUCH_TARGET_EVENTS;this.evWin=SINGLE_TOUCH_WINDOW_EVENTS;this.started=false;Input.apply(this,arguments);}
    inherit(SingleTouchInput,Input,{handler:function TEhandler(ev){var type=SINGLE_TOUCH_INPUT_MAP[ev.type];if(type===INPUT_START){this.started=true;}
            if(!this.started){return;}
            var touches=normalizeSingleTouches.call(this,ev,type);if(type&(INPUT_END|INPUT_CANCEL)&&touches[0].length-touches[1].length===0){this.started=false;}
            this.callback(this.manager,type,{pointers:touches[0],changedPointers:touches[1],pointerType:INPUT_TYPE_TOUCH,srcEvent:ev});}});function normalizeSingleTouches(ev,type){var all=toArray(ev.touches);var changed=toArray(ev.changedTouches);if(type&(INPUT_END|INPUT_CANCEL)){all=uniqueArray(all.concat(changed),'identifier',true);}
        return[all,changed];}
    var TOUCH_INPUT_MAP={touchstart:INPUT_START,touchmove:INPUT_MOVE,touchend:INPUT_END,touchcancel:INPUT_CANCEL};var TOUCH_TARGET_EVENTS='touchstart touchmove touchend touchcancel';function TouchInput(){this.evTarget=TOUCH_TARGET_EVENTS;this.targetIds={};Input.apply(this,arguments);}
    inherit(TouchInput,Input,{handler:function MTEhandler(ev){var type=TOUCH_INPUT_MAP[ev.type];var touches=getTouches.call(this,ev,type);if(!touches){return;}
            this.callback(this.manager,type,{pointers:touches[0],changedPointers:touches[1],pointerType:INPUT_TYPE_TOUCH,srcEvent:ev});}});function getTouches(ev,type){var allTouches=toArray(ev.touches);var targetIds=this.targetIds;if(type&(INPUT_START|INPUT_MOVE)&&allTouches.length===1){targetIds[allTouches[0].identifier]=true;return[allTouches,allTouches];}
        var i,targetTouches,changedTouches=toArray(ev.changedTouches),changedTargetTouches=[],target=this.target;targetTouches=allTouches.filter(function(touch){return hasParent(touch.target,target);});if(type===INPUT_START){i=0;while(i<targetTouches.length){targetIds[targetTouches[i].identifier]=true;i++;}}
        i=0;while(i<changedTouches.length){if(targetIds[changedTouches[i].identifier]){changedTargetTouches.push(changedTouches[i]);}
            if(type&(INPUT_END|INPUT_CANCEL)){delete targetIds[changedTouches[i].identifier];}
            i++;}
        if(!changedTargetTouches.length){return;}
        return[uniqueArray(targetTouches.concat(changedTargetTouches),'identifier',true),changedTargetTouches];}
    function TouchMouseInput(){Input.apply(this,arguments);var handler=bindFn(this.handler,this);this.touch=new TouchInput(this.manager,handler);this.mouse=new MouseInput(this.manager,handler);}
    inherit(TouchMouseInput,Input,{handler:function TMEhandler(manager,inputEvent,inputData){var isTouch=(inputData.pointerType==INPUT_TYPE_TOUCH),isMouse=(inputData.pointerType==INPUT_TYPE_MOUSE);if(isTouch){this.mouse.allow=false;}else if(isMouse&&!this.mouse.allow){return;}
            if(inputEvent&(INPUT_END|INPUT_CANCEL)){this.mouse.allow=true;}
            this.callback(manager,inputEvent,inputData);},destroy:function destroy(){this.touch.destroy();this.mouse.destroy();}});var PREFIXED_TOUCH_ACTION=prefixed(TEST_ELEMENT.style,'touchAction');var NATIVE_TOUCH_ACTION=PREFIXED_TOUCH_ACTION!==undefined;var TOUCH_ACTION_COMPUTE='compute';var TOUCH_ACTION_AUTO='auto';var TOUCH_ACTION_MANIPULATION='manipulation';var TOUCH_ACTION_NONE='none';var TOUCH_ACTION_PAN_X='pan-x';var TOUCH_ACTION_PAN_Y='pan-y';function TouchAction(manager,value){this.manager=manager;this.set(value);}
    TouchAction.prototype={set:function(value){if(value==TOUCH_ACTION_COMPUTE){value=this.compute();}
            if(NATIVE_TOUCH_ACTION){this.manager.element.style[PREFIXED_TOUCH_ACTION]=value;}
            this.actions=value.toLowerCase().trim();},update:function(){this.set(this.manager.options.touchAction);},compute:function(){var actions=[];each(this.manager.recognizers,function(recognizer){if(boolOrFn(recognizer.options.enable,[recognizer])){actions=actions.concat(recognizer.getTouchAction());}});return cleanTouchActions(actions.join(' '));},preventDefaults:function(input){if(NATIVE_TOUCH_ACTION){return;}
            var srcEvent=input.srcEvent;var direction=input.offsetDirection;if(this.manager.session.prevented){srcEvent.preventDefault();return;}
            var actions=this.actions;var hasNone=inStr(actions,TOUCH_ACTION_NONE);var hasPanY=inStr(actions,TOUCH_ACTION_PAN_Y);var hasPanX=inStr(actions,TOUCH_ACTION_PAN_X);if(hasNone||(hasPanY&&direction&DIRECTION_HORIZONTAL)||(hasPanX&&direction&DIRECTION_VERTICAL)){return this.preventSrc(srcEvent);}},preventSrc:function(srcEvent){this.manager.session.prevented=true;srcEvent.preventDefault();}};function cleanTouchActions(actions){if(inStr(actions,TOUCH_ACTION_NONE)){return TOUCH_ACTION_NONE;}
        var hasPanX=inStr(actions,TOUCH_ACTION_PAN_X);var hasPanY=inStr(actions,TOUCH_ACTION_PAN_Y);if(hasPanX&&hasPanY){return TOUCH_ACTION_PAN_X+' '+TOUCH_ACTION_PAN_Y;}
        if(hasPanX||hasPanY){return hasPanX?TOUCH_ACTION_PAN_X:TOUCH_ACTION_PAN_Y;}
        if(inStr(actions,TOUCH_ACTION_MANIPULATION)){return TOUCH_ACTION_MANIPULATION;}
        return TOUCH_ACTION_AUTO;}
    var STATE_POSSIBLE=1;var STATE_BEGAN=2;var STATE_CHANGED=4;var STATE_ENDED=8;var STATE_RECOGNIZED=STATE_ENDED;var STATE_CANCELLED=16;var STATE_FAILED=32;function Recognizer(options){this.id=uniqueId();this.manager=null;this.options=merge(options||{},this.defaults);this.options.enable=ifUndefined(this.options.enable,true);this.state=STATE_POSSIBLE;this.simultaneous={};this.requireFail=[];}
    Recognizer.prototype={defaults:{},set:function(options){extend(this.options,options);this.manager&&this.manager.touchAction.update();return this;},recognizeWith:function(otherRecognizer){if(invokeArrayArg(otherRecognizer,'recognizeWith',this)){return this;}
            var simultaneous=this.simultaneous;otherRecognizer=getRecognizerByNameIfManager(otherRecognizer,this);if(!simultaneous[otherRecognizer.id]){simultaneous[otherRecognizer.id]=otherRecognizer;otherRecognizer.recognizeWith(this);}
            return this;},dropRecognizeWith:function(otherRecognizer){if(invokeArrayArg(otherRecognizer,'dropRecognizeWith',this)){return this;}
            otherRecognizer=getRecognizerByNameIfManager(otherRecognizer,this);delete this.simultaneous[otherRecognizer.id];return this;},requireFailure:function(otherRecognizer){if(invokeArrayArg(otherRecognizer,'requireFailure',this)){return this;}
            var requireFail=this.requireFail;otherRecognizer=getRecognizerByNameIfManager(otherRecognizer,this);if(inArray(requireFail,otherRecognizer)===-1){requireFail.push(otherRecognizer);otherRecognizer.requireFailure(this);}
            return this;},dropRequireFailure:function(otherRecognizer){if(invokeArrayArg(otherRecognizer,'dropRequireFailure',this)){return this;}
            otherRecognizer=getRecognizerByNameIfManager(otherRecognizer,this);var index=inArray(this.requireFail,otherRecognizer);if(index>-1){this.requireFail.splice(index,1);}
            return this;},hasRequireFailures:function(){return this.requireFail.length>0;},canRecognizeWith:function(otherRecognizer){return!!this.simultaneous[otherRecognizer.id];},emit:function(input){var self=this;var state=this.state;function emit(withState){self.manager.emit(self.options.event+(withState?stateStr(state):''),input);}
            if(state<STATE_ENDED){emit(true);}
            emit();if(state>=STATE_ENDED){emit(true);}},tryEmit:function(input){if(this.canEmit()){return this.emit(input);}
            this.state=STATE_FAILED;},canEmit:function(){var i=0;while(i<this.requireFail.length){if(!(this.requireFail[i].state&(STATE_FAILED|STATE_POSSIBLE))){return false;}
            i++;}
            return true;},recognize:function(inputData){var inputDataClone=extend({},inputData);if(!boolOrFn(this.options.enable,[this,inputDataClone])){this.reset();this.state=STATE_FAILED;return;}
            if(this.state&(STATE_RECOGNIZED|STATE_CANCELLED|STATE_FAILED)){this.state=STATE_POSSIBLE;}
            this.state=this.process(inputDataClone);if(this.state&(STATE_BEGAN|STATE_CHANGED|STATE_ENDED|STATE_CANCELLED)){this.tryEmit(inputDataClone);}},process:function(inputData){},getTouchAction:function(){},reset:function(){}};function stateStr(state){if(state&STATE_CANCELLED){return 'cancel';}else if(state&STATE_ENDED){return 'end';}else if(state&STATE_CHANGED){return 'move';}else if(state&STATE_BEGAN){return 'start';}
        return '';}
    function directionStr(direction){if(direction==DIRECTION_DOWN){return 'down';}else if(direction==DIRECTION_UP){return 'up';}else if(direction==DIRECTION_LEFT){return 'left';}else if(direction==DIRECTION_RIGHT){return 'right';}
        return '';}
    function getRecognizerByNameIfManager(otherRecognizer,recognizer){var manager=recognizer.manager;if(manager){return manager.get(otherRecognizer);}
        return otherRecognizer;}
    function AttrRecognizer(){Recognizer.apply(this,arguments);}
    inherit(AttrRecognizer,Recognizer,{defaults:{pointers:1},attrTest:function(input){var optionPointers=this.options.pointers;return optionPointers===0||input.pointers.length===optionPointers;},process:function(input){var state=this.state;var eventType=input.eventType;var isRecognized=state&(STATE_BEGAN|STATE_CHANGED);var isValid=this.attrTest(input);if(isRecognized&&(eventType&INPUT_CANCEL||!isValid)){return state|STATE_CANCELLED;}else if(isRecognized||isValid){if(eventType&INPUT_END){return state|STATE_ENDED;}else if(!(state&STATE_BEGAN)){return STATE_BEGAN;}
            return state|STATE_CHANGED;}
            return STATE_FAILED;}});function PanRecognizer(){AttrRecognizer.apply(this,arguments);this.pX=null;this.pY=null;}
    inherit(PanRecognizer,AttrRecognizer,{defaults:{event:'pan',threshold:10,pointers:1,direction:DIRECTION_ALL},getTouchAction:function(){var direction=this.options.direction;var actions=[];if(direction&DIRECTION_HORIZONTAL){actions.push(TOUCH_ACTION_PAN_Y);}
            if(direction&DIRECTION_VERTICAL){actions.push(TOUCH_ACTION_PAN_X);}
            return actions;},directionTest:function(input){var options=this.options;var hasMoved=true;var distance=input.distance;var direction=input.direction;var x=input.deltaX;var y=input.deltaY;if(!(direction&options.direction)){if(options.direction&DIRECTION_HORIZONTAL){direction=(x===0)?DIRECTION_NONE:(x<0)?DIRECTION_LEFT:DIRECTION_RIGHT;hasMoved=x!=this.pX;distance=Math.abs(input.deltaX);}else{direction=(y===0)?DIRECTION_NONE:(y<0)?DIRECTION_UP:DIRECTION_DOWN;hasMoved=y!=this.pY;distance=Math.abs(input.deltaY);}}
            input.direction=direction;return hasMoved&&distance>options.threshold&&direction&options.direction;},attrTest:function(input){return AttrRecognizer.prototype.attrTest.call(this,input)&&(this.state&STATE_BEGAN||(!(this.state&STATE_BEGAN)&&this.directionTest(input)));},emit:function(input){this.pX=input.deltaX;this.pY=input.deltaY;var direction=directionStr(input.direction);if(direction){this.manager.emit(this.options.event+direction,input);}
            this._super.emit.call(this,input);}});function PinchRecognizer(){AttrRecognizer.apply(this,arguments);}
    inherit(PinchRecognizer,AttrRecognizer,{defaults:{event:'pinch',threshold:0,pointers:2},getTouchAction:function(){return[TOUCH_ACTION_NONE];},attrTest:function(input){return this._super.attrTest.call(this,input)&&(Math.abs(input.scale-1)>this.options.threshold||this.state&STATE_BEGAN);},emit:function(input){this._super.emit.call(this,input);if(input.scale!==1){var inOut=input.scale<1?'in':'out';this.manager.emit(this.options.event+inOut,input);}}});function PressRecognizer(){Recognizer.apply(this,arguments);this._timer=null;this._input=null;}
    inherit(PressRecognizer,Recognizer,{defaults:{event:'press',pointers:1,time:500,threshold:5},getTouchAction:function(){return[TOUCH_ACTION_AUTO];},process:function(input){var options=this.options;var validPointers=input.pointers.length===options.pointers;var validMovement=input.distance<options.threshold;var validTime=input.deltaTime>options.time;this._input=input;if(!validMovement||!validPointers||(input.eventType&(INPUT_END|INPUT_CANCEL)&&!validTime)){this.reset();}else if(input.eventType&INPUT_START){this.reset();this._timer=setTimeoutContext(function(){this.state=STATE_RECOGNIZED;this.tryEmit();},options.time,this);}else if(input.eventType&INPUT_END){return STATE_RECOGNIZED;}
            return STATE_FAILED;},reset:function(){clearTimeout(this._timer);},emit:function(input){if(this.state!==STATE_RECOGNIZED){return;}
            if(input&&(input.eventType&INPUT_END)){this.manager.emit(this.options.event+'up',input);}else{this._input.timeStamp=now();this.manager.emit(this.options.event,this._input);}}});function RotateRecognizer(){AttrRecognizer.apply(this,arguments);}
    inherit(RotateRecognizer,AttrRecognizer,{defaults:{event:'rotate',threshold:0,pointers:2},getTouchAction:function(){return[TOUCH_ACTION_NONE];},attrTest:function(input){return this._super.attrTest.call(this,input)&&(Math.abs(input.rotation)>this.options.threshold||this.state&STATE_BEGAN);}});function SwipeRecognizer(){AttrRecognizer.apply(this,arguments);}
    inherit(SwipeRecognizer,AttrRecognizer,{defaults:{event:'swipe',threshold:10,velocity:0.65,direction:DIRECTION_HORIZONTAL|DIRECTION_VERTICAL,pointers:1},getTouchAction:function(){return PanRecognizer.prototype.getTouchAction.call(this);},attrTest:function(input){var direction=this.options.direction;var velocity;if(direction&(DIRECTION_HORIZONTAL|DIRECTION_VERTICAL)){velocity=input.velocity;}else if(direction&DIRECTION_HORIZONTAL){velocity=input.velocityX;}else if(direction&DIRECTION_VERTICAL){velocity=input.velocityY;}
            return this._super.attrTest.call(this,input)&&direction&input.direction&&input.distance>this.options.threshold&&abs(velocity)>this.options.velocity&&input.eventType&INPUT_END;},emit:function(input){var direction=directionStr(input.direction);if(direction){this.manager.emit(this.options.event+direction,input);}
            this.manager.emit(this.options.event,input);}});function TapRecognizer(){Recognizer.apply(this,arguments);this.pTime=false;this.pCenter=false;this._timer=null;this._input=null;this.count=0;}
    inherit(TapRecognizer,Recognizer,{defaults:{event:'tap',pointers:1,taps:1,interval:300,time:250,threshold:2,posThreshold:10},getTouchAction:function(){return[TOUCH_ACTION_MANIPULATION];},process:function(input){var options=this.options;var validPointers=input.pointers.length===options.pointers;var validMovement=input.distance<options.threshold;var validTouchTime=input.deltaTime<options.time;this.reset();if((input.eventType&INPUT_START)&&(this.count===0)){return this.failTimeout();}
            if(validMovement&&validTouchTime&&validPointers){if(input.eventType!=INPUT_END){return this.failTimeout();}
                var validInterval=this.pTime?(input.timeStamp-this.pTime<options.interval):true;var validMultiTap=!this.pCenter||getDistance(this.pCenter,input.center)<options.posThreshold;this.pTime=input.timeStamp;this.pCenter=input.center;if(!validMultiTap||!validInterval){this.count=1;}else{this.count+=1;}
                this._input=input;var tapCount=this.count%options.taps;if(tapCount===0){if(!this.hasRequireFailures()){return STATE_RECOGNIZED;}else{this._timer=setTimeoutContext(function(){this.state=STATE_RECOGNIZED;this.tryEmit();},options.interval,this);return STATE_BEGAN;}}}
            return STATE_FAILED;},failTimeout:function(){this._timer=setTimeoutContext(function(){this.state=STATE_FAILED;},this.options.interval,this);return STATE_FAILED;},reset:function(){clearTimeout(this._timer);},emit:function(){if(this.state==STATE_RECOGNIZED){this._input.tapCount=this.count;this.manager.emit(this.options.event,this._input);}}});function Hammer(element,options){options=options||{};options.recognizers=ifUndefined(options.recognizers,Hammer.defaults.preset);return new Manager(element,options);}
    Hammer.VERSION='2.0.4';Hammer.defaults={domEvents:false,touchAction:TOUCH_ACTION_COMPUTE,enable:true,inputTarget:null,inputClass:null,preset:[[RotateRecognizer,{enable:false}],[PinchRecognizer,{enable:false},['rotate']],[SwipeRecognizer,{direction:DIRECTION_HORIZONTAL}],[PanRecognizer,{direction:DIRECTION_HORIZONTAL},['swipe']],[TapRecognizer],[TapRecognizer,{event:'doubletap',taps:2},['tap']],[PressRecognizer]],cssProps:{userSelect:'none',touchSelect:'none',touchCallout:'none',contentZooming:'none',userDrag:'none',tapHighlightColor:'rgba(0,0,0,0)'}};var STOP=1;var FORCED_STOP=2;function Manager(element,options){options=options||{};this.options=merge(options,Hammer.defaults);this.options.inputTarget=this.options.inputTarget||element;this.handlers={};this.session={};this.recognizers=[];this.element=element;this.input=createInputInstance(this);this.touchAction=new TouchAction(this,this.options.touchAction);toggleCssProps(this,true);each(options.recognizers,function(item){var recognizer=this.add(new(item[0])(item[1]));item[2]&&recognizer.recognizeWith(item[2]);item[3]&&recognizer.requireFailure(item[3]);},this);}
    Manager.prototype={set:function(options){extend(this.options,options);if(options.touchAction){this.touchAction.update();}
            if(options.inputTarget){this.input.destroy();this.input.target=options.inputTarget;this.input.init();}
            return this;},stop:function(force){this.session.stopped=force?FORCED_STOP:STOP;},recognize:function(inputData){var session=this.session;if(session.stopped){return;}
            this.touchAction.preventDefaults(inputData);var recognizer;var recognizers=this.recognizers;var curRecognizer=session.curRecognizer;if(!curRecognizer||(curRecognizer&&curRecognizer.state&STATE_RECOGNIZED)){curRecognizer=session.curRecognizer=null;}
            var i=0;while(i<recognizers.length){recognizer=recognizers[i];if(session.stopped!==FORCED_STOP&&(!curRecognizer||recognizer==curRecognizer||recognizer.canRecognizeWith(curRecognizer))){recognizer.recognize(inputData);}else{recognizer.reset();}
                if(!curRecognizer&&recognizer.state&(STATE_BEGAN|STATE_CHANGED|STATE_ENDED)){curRecognizer=session.curRecognizer=recognizer;}
                i++;}},get:function(recognizer){if(recognizer instanceof Recognizer){return recognizer;}
            var recognizers=this.recognizers;for(var i=0;i<recognizers.length;i++){if(recognizers[i].options.event==recognizer){return recognizers[i];}}
            return null;},add:function(recognizer){if(invokeArrayArg(recognizer,'add',this)){return this;}
            var existing=this.get(recognizer.options.event);if(existing){this.remove(existing);}
            this.recognizers.push(recognizer);recognizer.manager=this;this.touchAction.update();return recognizer;},remove:function(recognizer){if(invokeArrayArg(recognizer,'remove',this)){return this;}
            var recognizers=this.recognizers;recognizer=this.get(recognizer);recognizers.splice(inArray(recognizers,recognizer),1);this.touchAction.update();return this;},on:function(events,handler){var handlers=this.handlers;each(splitStr(events),function(event){handlers[event]=handlers[event]||[];handlers[event].push(handler);});return this;},off:function(events,handler){var handlers=this.handlers;each(splitStr(events),function(event){if(!handler){delete handlers[event];}else{handlers[event].splice(inArray(handlers[event],handler),1);}});return this;},emit:function(event,data){if(this.options.domEvents){triggerDomEvent(event,data);}
            var handlers=this.handlers[event]&&this.handlers[event].slice();if(!handlers||!handlers.length){return;}
            data.type=event;data.preventDefault=function(){data.srcEvent.preventDefault();};var i=0;while(i<handlers.length){handlers[i](data);i++;}},destroy:function(){this.element&&toggleCssProps(this,false);this.handlers={};this.session={};this.input.destroy();this.element=null;}};function toggleCssProps(manager,add){var element=manager.element;each(manager.options.cssProps,function(value,name){element.style[prefixed(element.style,name)]=add?value:'';});}
    function triggerDomEvent(event,data){var gestureEvent=document.createEvent('Event');gestureEvent.initEvent(event,true,true);gestureEvent.gesture=data;data.target.dispatchEvent(gestureEvent);}
    extend(Hammer,{INPUT_START:INPUT_START,INPUT_MOVE:INPUT_MOVE,INPUT_END:INPUT_END,INPUT_CANCEL:INPUT_CANCEL,STATE_POSSIBLE:STATE_POSSIBLE,STATE_BEGAN:STATE_BEGAN,STATE_CHANGED:STATE_CHANGED,STATE_ENDED:STATE_ENDED,STATE_RECOGNIZED:STATE_RECOGNIZED,STATE_CANCELLED:STATE_CANCELLED,STATE_FAILED:STATE_FAILED,DIRECTION_NONE:DIRECTION_NONE,DIRECTION_LEFT:DIRECTION_LEFT,DIRECTION_RIGHT:DIRECTION_RIGHT,DIRECTION_UP:DIRECTION_UP,DIRECTION_DOWN:DIRECTION_DOWN,DIRECTION_HORIZONTAL:DIRECTION_HORIZONTAL,DIRECTION_VERTICAL:DIRECTION_VERTICAL,DIRECTION_ALL:DIRECTION_ALL,Manager:Manager,Input:Input,TouchAction:TouchAction,TouchInput:TouchInput,MouseInput:MouseInput,PointerEventInput:PointerEventInput,TouchMouseInput:TouchMouseInput,SingleTouchInput:SingleTouchInput,Recognizer:Recognizer,AttrRecognizer:AttrRecognizer,Tap:TapRecognizer,Pan:PanRecognizer,Swipe:SwipeRecognizer,Pinch:PinchRecognizer,Rotate:RotateRecognizer,Press:PressRecognizer,on:addEventListeners,off:removeEventListeners,each:each,merge:merge,extend:extend,inherit:inherit,bindFn:bindFn,prefixed:prefixed});if(typeof define==TYPE_FUNCTION&&define.amd){define(function(){return Hammer;});}else if(typeof module!='undefined'&&module.exports){module.exports=Hammer;}else{window[exportName]=Hammer;}})(window,document,'Hammer');