1#@!#!123s

��JFIF�� 1#@!#!123s
: / var / www / html / projects / cando / assets / js /
Filename : jquery.waypoints.js
back
/*!
Waypoints - 4.0.0
Copyright © 2011-2015 Caleb Troughton
Licensed under the MIT license.
https://github.com/imakewebthings/waypoints/blob/master/licenses.txt
*/(function(){'use strict'
var keyCounter=0
var allWaypoints={}
function Waypoint(options){if(!options){throw new Error('No options passed to Waypoint constructor')}
if(!options.element){throw new Error('No element option passed to Waypoint constructor')}
if(!options.handler){throw new Error('No handler option passed to Waypoint constructor')}
this.key='waypoint-'+keyCounter
this.options=Waypoint.Adapter.extend({},Waypoint.defaults,options)
this.element=this.options.element
this.adapter=new Waypoint.Adapter(this.element)
this.callback=options.handler
this.axis=this.options.horizontal?'horizontal':'vertical'
this.enabled=this.options.enabled
this.triggerPoint=null
this.group=Waypoint.Group.findOrCreate({name:this.options.group,axis:this.axis})
this.context=Waypoint.Context.findOrCreateByElement(this.options.context)
if(Waypoint.offsetAliases[this.options.offset]){this.options.offset=Waypoint.offsetAliases[this.options.offset]}
this.group.add(this)
this.context.add(this)
allWaypoints[this.key]=this
keyCounter+=1}
Waypoint.prototype.queueTrigger=function(direction){this.group.queueTrigger(this,direction)}
Waypoint.prototype.trigger=function(args){if(!this.enabled){return}
if(this.callback){this.callback.apply(this,args)}}
Waypoint.prototype.destroy=function(){this.context.remove(this)
this.group.remove(this)
delete allWaypoints[this.key]}
Waypoint.prototype.disable=function(){this.enabled=false
return this}
Waypoint.prototype.enable=function(){this.context.refresh()
this.enabled=true
return this}
Waypoint.prototype.next=function(){return this.group.next(this)}
Waypoint.prototype.previous=function(){return this.group.previous(this)}
Waypoint.invokeAll=function(method){var allWaypointsArray=[]
for(var waypointKey in allWaypoints){allWaypointsArray.push(allWaypoints[waypointKey])}
for(var i=0,end=allWaypointsArray.length;i<end;i++){allWaypointsArray[i][method]()}}
Waypoint.destroyAll=function(){Waypoint.invokeAll('destroy')}
Waypoint.disableAll=function(){Waypoint.invokeAll('disable')}
Waypoint.enableAll=function(){Waypoint.invokeAll('enable')}
Waypoint.refreshAll=function(){Waypoint.Context.refreshAll()}
Waypoint.viewportHeight=function(){return window.innerHeight||document.documentElement.clientHeight}
Waypoint.viewportWidth=function(){return document.documentElement.clientWidth}
Waypoint.adapters=[]
Waypoint.defaults={context:window,continuous:true,enabled:true,group:'default',horizontal:false,offset:0}
Waypoint.offsetAliases={'bottom-in-view':function(){return this.context.innerHeight()-this.adapter.outerHeight()},'right-in-view':function(){return this.context.innerWidth()-this.adapter.outerWidth()}}
window.Waypoint=Waypoint}());(function(){'use strict'
function requestAnimationFrameShim(callback){window.setTimeout(callback,1000/60)}
var keyCounter=0
var contexts={}
var Waypoint=window.Waypoint
var oldWindowLoad=window.onload
function Context(element){this.element=element
this.Adapter=Waypoint.Adapter
this.adapter=new this.Adapter(element)
this.key='waypoint-context-'+keyCounter
this.didScroll=false
this.didResize=false
this.oldScroll={x:this.adapter.scrollLeft(),y:this.adapter.scrollTop()}
this.waypoints={vertical:{},horizontal:{}}
element.waypointContextKey=this.key
contexts[element.waypointContextKey]=this
keyCounter+=1
this.createThrottledScrollHandler()
this.createThrottledResizeHandler()}
Context.prototype.add=function(waypoint){var axis=waypoint.options.horizontal?'horizontal':'vertical'
this.waypoints[axis][waypoint.key]=waypoint
this.refresh()}
Context.prototype.checkEmpty=function(){var horizontalEmpty=this.Adapter.isEmptyObject(this.waypoints.horizontal)
var verticalEmpty=this.Adapter.isEmptyObject(this.waypoints.vertical)
if(horizontalEmpty&&verticalEmpty){this.adapter.off('.waypoints')
delete contexts[this.key]}}
Context.prototype.createThrottledResizeHandler=function(){var self=this
function resizeHandler(){self.handleResize()
self.didResize=false}
this.adapter.on('resize.waypoints',function(){if(!self.didResize){self.didResize=true
Waypoint.requestAnimationFrame(resizeHandler)}})}
Context.prototype.createThrottledScrollHandler=function(){var self=this
function scrollHandler(){self.handleScroll()
self.didScroll=false}
this.adapter.on('scroll.waypoints',function(){if(!self.didScroll||Waypoint.isTouch){self.didScroll=true
Waypoint.requestAnimationFrame(scrollHandler)}})}
Context.prototype.handleResize=function(){Waypoint.Context.refreshAll()}
Context.prototype.handleScroll=function(){var triggeredGroups={}
var axes={horizontal:{newScroll:this.adapter.scrollLeft(),oldScroll:this.oldScroll.x,forward:'right',backward:'left'},vertical:{newScroll:this.adapter.scrollTop(),oldScroll:this.oldScroll.y,forward:'down',backward:'up'}}
for(var axisKey in axes){var axis=axes[axisKey]
var isForward=axis.newScroll>axis.oldScroll
var direction=isForward?axis.forward:axis.backward
for(var waypointKey in this.waypoints[axisKey]){var waypoint=this.waypoints[axisKey][waypointKey]
var wasBeforeTriggerPoint=axis.oldScroll<waypoint.triggerPoint
var nowAfterTriggerPoint=axis.newScroll>=waypoint.triggerPoint
var crossedForward=wasBeforeTriggerPoint&&nowAfterTriggerPoint
var crossedBackward=!wasBeforeTriggerPoint&&!nowAfterTriggerPoint
if(crossedForward||crossedBackward){waypoint.queueTrigger(direction)
triggeredGroups[waypoint.group.id]=waypoint.group}}}
for(var groupKey in triggeredGroups){triggeredGroups[groupKey].flushTriggers()}
this.oldScroll={x:axes.horizontal.newScroll,y:axes.vertical.newScroll}}
Context.prototype.innerHeight=function(){if(this.element==this.element.window){return Waypoint.viewportHeight()}
return this.adapter.innerHeight()}
Context.prototype.remove=function(waypoint){delete this.waypoints[waypoint.axis][waypoint.key]
this.checkEmpty()}
Context.prototype.innerWidth=function(){if(this.element==this.element.window){return Waypoint.viewportWidth()}
return this.adapter.innerWidth()}
Context.prototype.destroy=function(){var allWaypoints=[]
for(var axis in this.waypoints){for(var waypointKey in this.waypoints[axis]){allWaypoints.push(this.waypoints[axis][waypointKey])}}
for(var i=0,end=allWaypoints.length;i<end;i++){allWaypoints[i].destroy()}}
Context.prototype.refresh=function(){var isWindow=this.element==this.element.window
var contextOffset=isWindow?undefined:this.adapter.offset()
var triggeredGroups={}
var axes
this.handleScroll()
axes={horizontal:{contextOffset:isWindow?0:contextOffset.left,contextScroll:isWindow?0:this.oldScroll.x,contextDimension:this.innerWidth(),oldScroll:this.oldScroll.x,forward:'right',backward:'left',offsetProp:'left'},vertical:{contextOffset:isWindow?0:contextOffset.top,contextScroll:isWindow?0:this.oldScroll.y,contextDimension:this.innerHeight(),oldScroll:this.oldScroll.y,forward:'down',backward:'up',offsetProp:'top'}}
for(var axisKey in axes){var axis=axes[axisKey]
for(var waypointKey in this.waypoints[axisKey]){var waypoint=this.waypoints[axisKey][waypointKey]
var adjustment=waypoint.options.offset
var oldTriggerPoint=waypoint.triggerPoint
var elementOffset=0
var freshWaypoint=oldTriggerPoint==null
var contextModifier,wasBeforeScroll,nowAfterScroll
var triggeredBackward,triggeredForward
if(waypoint.element!==waypoint.element.window){elementOffset=waypoint.adapter.offset()[axis.offsetProp]}
if(typeof adjustment==='function'){adjustment=adjustment.apply(waypoint)}
else if(typeof adjustment==='string'){adjustment=parseFloat(adjustment)
if(waypoint.options.offset.indexOf('%')>-1){adjustment=Math.ceil(axis.contextDimension*adjustment/100)}}
contextModifier=axis.contextScroll-axis.contextOffset
waypoint.triggerPoint=elementOffset+contextModifier-adjustment
wasBeforeScroll=oldTriggerPoint<axis.oldScroll
nowAfterScroll=waypoint.triggerPoint>=axis.oldScroll
triggeredBackward=wasBeforeScroll&&nowAfterScroll
triggeredForward=!wasBeforeScroll&&!nowAfterScroll
if(!freshWaypoint&&triggeredBackward){waypoint.queueTrigger(axis.backward)
triggeredGroups[waypoint.group.id]=waypoint.group}
else if(!freshWaypoint&&triggeredForward){waypoint.queueTrigger(axis.forward)
triggeredGroups[waypoint.group.id]=waypoint.group}
else if(freshWaypoint&&axis.oldScroll>=waypoint.triggerPoint){waypoint.queueTrigger(axis.forward)
triggeredGroups[waypoint.group.id]=waypoint.group}}}
Waypoint.requestAnimationFrame(function(){for(var groupKey in triggeredGroups){triggeredGroups[groupKey].flushTriggers()}})
return this}
Context.findOrCreateByElement=function(element){return Context.findByElement(element)||new Context(element)}
Context.refreshAll=function(){for(var contextId in contexts){contexts[contextId].refresh()}}
Context.findByElement=function(element){return contexts[element.waypointContextKey]}
window.onload=function(){if(oldWindowLoad){oldWindowLoad()}
Context.refreshAll()}
Waypoint.requestAnimationFrame=function(callback){var requestFn=window.requestAnimationFrame||window.mozRequestAnimationFrame||window.webkitRequestAnimationFrame||requestAnimationFrameShim
requestFn.call(window,callback)}
Waypoint.Context=Context}());(function(){'use strict'
function byTriggerPoint(a,b){return a.triggerPoint-b.triggerPoint}
function byReverseTriggerPoint(a,b){return b.triggerPoint-a.triggerPoint}
var groups={vertical:{},horizontal:{}}
var Waypoint=window.Waypoint
function Group(options){this.name=options.name
this.axis=options.axis
this.id=this.name+'-'+this.axis
this.waypoints=[]
this.clearTriggerQueues()
groups[this.axis][this.name]=this}
Group.prototype.add=function(waypoint){this.waypoints.push(waypoint)}
Group.prototype.clearTriggerQueues=function(){this.triggerQueues={up:[],down:[],left:[],right:[]}}
Group.prototype.flushTriggers=function(){for(var direction in this.triggerQueues){var waypoints=this.triggerQueues[direction]
var reverse=direction==='up'||direction==='left'
waypoints.sort(reverse?byReverseTriggerPoint:byTriggerPoint)
for(var i=0,end=waypoints.length;i<end;i+=1){var waypoint=waypoints[i]
if(waypoint.options.continuous||i===waypoints.length-1){waypoint.trigger([direction])}}}
this.clearTriggerQueues()}
Group.prototype.next=function(waypoint){this.waypoints.sort(byTriggerPoint)
var index=Waypoint.Adapter.inArray(waypoint,this.waypoints)
var isLast=index===this.waypoints.length-1
return isLast?null:this.waypoints[index+1]}
Group.prototype.previous=function(waypoint){this.waypoints.sort(byTriggerPoint)
var index=Waypoint.Adapter.inArray(waypoint,this.waypoints)
return index?this.waypoints[index-1]:null}
Group.prototype.queueTrigger=function(waypoint,direction){this.triggerQueues[direction].push(waypoint)}
Group.prototype.remove=function(waypoint){var index=Waypoint.Adapter.inArray(waypoint,this.waypoints)
if(index>-1){this.waypoints.splice(index,1)}}
Group.prototype.first=function(){return this.waypoints[0]}
Group.prototype.last=function(){return this.waypoints[this.waypoints.length-1]}
Group.findOrCreate=function(options){return groups[options.axis][options.name]||new Group(options)}
Waypoint.Group=Group}());(function(){'use strict'
var $=window.jQuery
var Waypoint=window.Waypoint
function JQueryAdapter(element){this.$element=$(element)}
$.each(['innerHeight','innerWidth','off','offset','on','outerHeight','outerWidth','scrollLeft','scrollTop'],function(i,method){JQueryAdapter.prototype[method]=function(){var args=Array.prototype.slice.call(arguments)
return this.$element[method].apply(this.$element,args)}})
$.each(['extend','inArray','isEmptyObject'],function(i,method){JQueryAdapter[method]=$[method]})
Waypoint.adapters.push({name:'jquery',Adapter:JQueryAdapter})
Waypoint.Adapter=JQueryAdapter}());(function(){'use strict'
var Waypoint=window.Waypoint
function createExtension(framework){return function(){var waypoints=[]
var overrides=arguments[0]
if(framework.isFunction(arguments[0])){overrides=framework.extend({},arguments[1])
overrides.handler=arguments[0]}
this.each(function(){var options=framework.extend({},overrides,{element:this})
if(typeof options.context==='string'){options.context=framework(this).closest(options.context)[0]}
waypoints.push(new Waypoint(options))})
return waypoints}}
if(window.jQuery){window.jQuery.fn.waypoint=createExtension(window.jQuery)}
if(window.Zepto){window.Zepto.fn.waypoint=createExtension(window.Zepto)}}());