会员中心上传头像时的，上传图片并剪切

(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}}