/*
 * RhetButler presentation Javascript (version 0.5
 * Build date: 12-05-2013
 *
 * Copyright 2013 Judson Lester (@judsonlester)
 *
 * Inspired by impress.js by
 *   Bartek Szopka (@bartaz)
 *
 * Released under the MIT and GPL Licenses.
 */
var rhetButler={};
(function(){var b=rhetButler;b.arrayify=function(a){return[].slice.call(a)};b.$$=function(a,b){b=b||document;return this.arrayify(b.querySelectorAll(a))};b.byId=function(a){return document.getElementById(a)};b.triggerEvent=function(a,b,d){var e=document.createEvent("CustomEvent");e.initCustomEvent(b,!0,!0,d);a.dispatchEvent(e)};var a="Webkit webkit moz Moz o O ms khtml Khtml".split(" ");b.pfx=function(){var c=window.getComputedStyle(document.createElement("dummy")),b={};return function(d){if("undefined"===typeof b[d]){var e,
f;e=d.replace(/-[a-z]/g,function(a){return a.slice(-1)[0].toUpperCase()});f=[d,e];e=e.replace(/^[a-z]/,function(a){return a.toUpperCase()});var h=a.forEach(function(a){f.push(a+d);f.push(a+e);f.push(a+"-"+d);f.push(a+"-"+e);f.push("-"+a+"-"+d);f.push("-"+a+"-"+e)});f=f.concat(h);b[d]=null;for(var k in f)if(h=c.getPropertyValue(f[k]),null!==h&&void 0!==h){b[d]=f[k];break}}return b[d]}}()})();rhetButler.Step=function(b){this.element=b;this.groups=[];this.steps=[]};
(function(){var b=rhetButler.Step.prototype;b.toString=function(){return"A Step "+this.element.id};b.setup=function(a,c){this.element=a;this.children=[];this.indexes={};this.childrenById={};for(field in c)this.indexes[field]=c[field];this.element.classList.add("future");this.nextItem=this.prevItem=this.lastItem=this.firstItem=this.nextSlide=this.prevSlide=this.lastSlide=this.firstSlide=null};b.treeFinished=function(){};b.addClass=function(a){this.element.classList.add(a)};b.removeClass=function(a){a instanceof
RegExp?Array.prototype.forEach.call(this.element.classList,function(c){a.test(c)&&this.element.classList.remove(c)},this):this.element.classList.remove(a)};b.hasClass=function(a){return this.element.classList.contains(a)};b.beginDeparture=function(){this.addClass("previous");this.removeClass("current");this.parent.beginDeparture()};b.completeDeparture=function(){this.removeClass("previous");this.removeClass("present");this.removeClass("future");this.removeClass("current");this.addClass("past");this.parent.completeDeparture()};
b.beginArrival=function(){this.addClass("next");this.parent.beginArrival()};b.completeArrival=function(){this.removeClass("next");this.addClass("current");this.removeClass("future");this.removeClass("past");this.addClass("present");this.parent.completeArrival()};b.cancelArrival=function(){this.removeClass("next")};b.eachStep=function(a){a(this);this.children.forEach(function(c){c.eachStep(a)})};b.relativeLevelPosition=function(a,c){if(!c)return["none","same",a];var b=c.indexes[a]-this.indexes[a];
return-1>b?["jump","backwards","by-"+a]:-1==b?["advance","backwards","by-"+a]:1==b?["advance","forwards","by-"+a]:1<b?["jump","forwards","by-"+a]:["none","same","by-"+a]};b.relativePosition=function(a){var c=this.relativeLevelPosition("slide",a);"none"==c[0]&&(c=this.relativeLevelPosition("item",a));return c};b.addChild=function(a){this.debugAssoc("Xanc",a);var c=this.children.slice(-1)[0];c&&(this.debugAssoc("Xalc",c),a.addPrevStep(c),c.addNextStep(a));this.children.push(a);this.addDescendant(a)};
b.addDescendant=function(a){this.childrenById[a.element.id]=a;a instanceof rhetButler.Steps.Slide&&(this.lastSlide=a,null==this.firstSlide&&(this.firstItem=this.firstSlide=a,null!=this.prevSlide&&(this.prevSlide.addNextSlide(a),a.addPrevSlide(this.prevSlide))));a instanceof rhetButler.Steps.Item&&(this.lastItem=a);this.propagateDescendant(a)};b.lastChild=function(){return 0<this.children.length?this.children.slice(-1)[0]:this};b.debugAssoc=function(a,c){};b.addNextRoot=function(a){this.debugAssoc("Xnr",
a)};b.addPrevRoot=function(a){this.debugAssoc("Xpr",a)};b.addNextGroup=function(a){this.debugAssoc("Xng",a)};b.addPrevGroup=function(a){this.debugAssoc("Xpg",a)};b.addNextSlide=function(a){this.debugAssoc("Xns",a)};b.addPrevSlide=function(a){this.debugAssoc("Xps",a)};b.addNextItem=function(a){this.debugAssoc("Xni",a)};b.addPrevItem=function(a){this.debugAssoc("Xpi",a)}})();rhetButler.ChildStep=function(){};rhetButler.ChildStep.prototype=new rhetButler.Step;
(function(){var b=rhetButler.ChildStep.prototype,a=rhetButler.Step.prototype;b.setup=function(c,b,d){this.parent=c;a.setup.call(this,b,d);this.parent.addChild(this)};b.propagateDescendant=function(a){this.parent.addDescendant(a)}})();rhetButler.Steps={};rhetButler.Steps.Group=function(b,a,c){this.setup(b,a,c)};rhetButler.Steps.Group.prototype=new rhetButler.ChildStep;
(function(){var b=rhetButler.Steps.Group.prototype;b.addNextStep=function(a){a.addPrevGroup(this)};b.addPrevStep=function(a){a.addNextGroup(this)};b.addNextSlide=function(a){this.debugAssoc("gns",a);this.nextSlide=a;this.lastSlide&&this.lastSlide.addNextSlide(a)};b.addPrevSlide=function(a){this.debugAssoc("gps",a);this.lastSlide||(this.lastSlide=a);this.lastItem||(this.lastItem=a.lastChild());this.prevSlide=a;this.prevItem=a.lastChild()};b.addNextGroup=function(a){this.debugAssoc("gng",a)};b.addPrevGroup=
function(a){this.debugAssoc("gpg",a);this.lastSlide=this.prevSlide=a.lastSlide;this.lastItem=a.lastItem}})();rhetButler.Steps.Item=function(b,a,c,g){this._cue=g;this.setup(b,a,c)};rhetButler.Steps.Item.prototype=new rhetButler.ChildStep;
(function(){var b=rhetButler.Steps.Item.prototype;b.cue=function(){return this._cue};b.addChild=function(a){this.parent.addChild(a)};b.addNextStep=function(a){a.addPrevItem(this)};b.addPrevStep=function(a){a.addNextItem(this)};b.addNextItem=function(a){this.debugAssoc("ini",a);this.nextItem=a};b.addPrevItem=function(a){this.debugAssoc("ipi",a);this.prevItem=a};b.beginDeparture=function(){this.parent.addClass("prev-"+this.cue());this.parent.removeClass(/^current-cue-.*/);this.parent.beginDeparture()};
b.completeDeparture=function(){this.parent.removeClass("prev-"+this.cue());this.parent.completeDeparture()};b.beginArrival=function(){this.parent.addClass("next-"+this.cue());this.parent.beginArrival()};b.completeArrival=function(){this.parent.removeClass("next-"+this.cue());this.parent.addClass("current-"+this.cue());this.parent.completeArrival()}})();rhetButler.Steps.Root=function(b,a){this.setup(b,a)};rhetButler.Steps.Root.prototype=new rhetButler.Step;
(function(){var b=rhetButler.Steps.Root.prototype;b.propagateDescendant=function(a){};b.addNextStep=function(a){a.addPrevRoot(this)};b.addPrevStep=function(a){a.addNextRoot(this)};b.beginTransition=function(a){this.addClass("moving");this.addClass(a.startElemId());this.addClass(a.endElemId());a.direction.forEach(function(a){this.addClass(a)},this)};b.completeTransition=function(a){this.removeClass("moving");this.removeClass(a.startElemId());this.removeClass(a.endElemId());a.direction.forEach(function(a){this.removeClass(a)},
this)};b.beginArrival=function(){};b.completeArrival=function(){};b.beginDeparture=function(){};b.completeDeparture=function(){}})();rhetButler.Steps.Slide=function(b,a,c){this.setup(b,a,c);this.items=[]};rhetButler.Steps.Slide.prototype=new rhetButler.ChildStep;
(function(){var b=rhetButler.Steps.Slide.prototype,a=rhetButler.Step.prototype;b.addChild=function(a){this.items.some(function(b){return a.cue()==b.cue()})||this.items.push(a)};b.treeFinished=function(){var c=/^cue-(\d+)/;if(0!=this.items.length){this.items=this.items.sort(function(a,b){var g=parseInt(c.exec(a.cue())[1],10),h=parseInt(c.exec(b.cue())[1],10);return g==h?a.cue()<b.cue()?-1:1:g<h?-1:1});this.items[0].prevItem=this;this.nextItem=this.items[0];var b=Math.max.apply(void 0,this.items.map(function(a){return a.indexes.item}));
this.items.forEach(function(a){a.indexes.item=b;b++});this.items.forEach(function(b){b.prevSlide=this.prevSlide;a.addChild.call(this,b)},this)}};b.addNextStep=function(a){a.addPrevSlide(this)};b.addPrevStep=function(a){a.addNextSlide(this)};b.addPrevGroup=function(a){this.debugAssoc("spg",a);a.lastSlide&&this.addPrevSlide(a.lastSlide)};b.addNextSlide=function(a){this.debugAssoc("sns",a);this.nextSlide=a;this.children.forEach(function(b){b.nextSlide=a});this.lastChild().nextItem=a};b.addPrevSlide=
function(a){this.debugAssoc("sps",a);this.prevSlide=a;this.children.forEach(function(b){b.prevSlide=a});this.prevItem=a.lastChild()}})();rhetButler.TransitionStation=function(b){this.step=b;this.checkIn=!1;this.eventListener=null};
(function(){var b=["transition-duration","animation-name","animation-iteration-count","animation-play-state"],a=[];(function(){var b=["TransitionEnd","AnimationEnd"];["webkit","o","MS",""].forEach(function(c){b.forEach(function(b){a.push(c+b);a.push(c+b.toLowerCase())})})})();var c=rhetButler.TransitionStation.prototype;c.visit=function(){var a,b;if(this.checkIn)return!0;a=this.getMotionStyles();this.step.addClass("am-at");this.step.removeClass("to-come");b=this.getMotionStyles();this.checkIn=!0;
for(name in b)a[name]!=b[name]&&(this.checkIn=!1);this.elementHasMotion()||this.visited();this.checkIn&&this.step.removeClass("am-at");return this.checkIn};c.setArriveHandler=function(a){this.removeListener();this.eventListener=a;this.attachListener()};c.visited=function(){this.step.removeClass("to-come");this.step.addClass("has-gone");this.checkIn=!0};c.prepare=function(){this.step.addClass("to-come");this.attachListener()};c.complete=function(){this.step.removeClass("to-come");this.step.removeClass("has-gone");
this.step.removeClass("am-at");this.removeListener()};c.getMotionStyles=function(){var a=window.getComputedStyle(document.getElementById(this.step.element.id)),c={};b.map(function(b){c[b]=a.getPropertyValue(rhetButler.pfx(b))});return c};c.elementHasMotion=function(){var a=this.getMotionStyles(),b=[],c;a["transition-duration"]&&(b=a["transition-duration"].split(/\s*,\s*/));if(!b.every(function(a){return"0s"==a}))return!0;if(null==a["animation-name"]||"none"==a["animation-name"])return!1;b=a["animation-play-state"].split(/\s*,\s*/);
c=a["animation-iteration-count"].split(/\s*,\s*/);b.length<c.length?b=b.concat(b):c=c.concat(c);return b.some(function(a,b){return"paused"!=a&&"infinite"!=c[b]})};c.attachListener=function(){this.eventListener&&a.forEach(function(a){this.step.element.addEventListener(a,this.eventListener,!0)},this)};c.removeListener=function(){this.eventListener&&a.forEach(function(a){this.step.element.removeEventListener(a,this.eventListener,!0)},this)}})();
rhetButler.TransitionStations=function(b,a,c,g){this.presenter=b;this.uphill=[];this.uphillIndex=0;this.downhill=[];this.downhillIndex=0;this.firstStep=a;this.currentStep=c;this.lastStep=g;this.buildList();this.currentState=null;this.changeState("preparing")};
(function(){var b=rhetButler.TransitionStations.prototype,a={preparing:{},uphill:{},downhill:{},cancelled:{},arrived:{}},c={enter:function(){},start:function(){},cancel:function(){this.changeState("cancelled")},forceFinish:function(){console.log("Force Finish")},finish:function(){},currentLeg:function(){return[]},enterState:function(){},resumeStep:function(){return this.firstStep},currentStation:function(){return null},advanceStation:function(){},nextStation:function(){this.currentStation().visit();
if(this.currentStation().checkIn)return this.advanceStation();var a=this,b=this.currentStation();this.currentStation().setArriveHandler(function(c){a.arriveListener(b,c)});return!1}};for(name in a)for(func in c)a[name][func]=c[func];a.preparing.enterState=function(){this.eachStation(function(a){a.prepare()})};a.preparing.start=function(){this.changeState("uphill");this.elementArrived(this.currentStep)};a.preparing.forceFinish=function(){this.eachStation(function(a){a.visited()});this.changeState("arrived")};
a.uphill.enterState=function(){this.currentStep=this.uphill[0].step;this.presenter.rootStep.beginTransition(this);this.firstStep.beginDeparture();this.lastStep.beginArrival()};a.uphill.finish=function(){this.changeState("downhill")};a.uphill.currentLeg=function(){return this.uphill};a.uphill.currentStation=function(){return this.uphill[this.uphillIndex]};a.uphill.advanceStation=function(){this.uphillIndex++;this.uphillIndex<this.uphill.length?this.currentStep=this.currentStation().step:this.changeState("downhill");
return!0};a.downhill.currentLeg=function(){return this.downhill};a.downhill.enterState=function(){this.currentStep=this.downhill[0].step};a.downhill.currentStation=function(){return this.downhill[this.downhillIndex]};a.downhill.advanceStation=function(){this.downhillIndex++;if(this.downhillIndex<this.downhill.length)return this.currentStep=this.currentStation().step,!0;this.changeState("arrived");return!1};a.downhill.finish=function(){this.changeState("arrived")};a.downhill.resumeStep=function(){return this.lastStep};
a.cancelled.enterState=function(){this.eachStation(function(a){a.step!=this.currentStep&&a.complete()},this);this.presenter.rootStep.completeTransition(this);this.firstStep.completeDeparture();this.lastStep.cancelArrival()};a.arrived.enterState=function(){this.eachStation(function(a){a.complete()});this.currentStep=this.lastStep;this.presenter.rootStep.completeTransition(this);this.firstStep.completeDeparture();this.lastStep.completeArrival();this.presenter.completeTransition()};a.arrived.resumeStep=
function(){return this.lastStep};a.arrived.nextStation=function(){return!1};a.arrived.cancel=function(){return!1};b.changeState=function(b){"undefined"==typeof quiet_console&&console.log("Changing state: "+b+" S/C/E: "+this.firstStep.toString()+" / "+this.currentStep.toString()+" / "+this.lastStep.toString());var c=a[b];for(func in c)this[func]=c[func];for(stateName in a)this.presenter.rootStep.removeClass(stateName);this.presenter.rootStep.addClass(b);this.currentState=b;this.enterState()};b.buildList=
function(){var a=this.firstStep,b=!0,c;for(this.direction=this.firstStep.relativePosition(this.lastStep);null!=a;)b=b&&a!=this.currentStep,c=new rhetButler.TransitionStation(a),this.uphill.push(c),b&&c.visited(),a=a.parent;for(a=this.lastStep;null!=a;)this.downhill.unshift(new rhetButler.TransitionStation(a)),a=a.parent};b.startElemId=function(){return"prev_"+this.firstStep.element.id};b.endElemId=function(){return"next_"+this.lastStep.element.id};b.eachStation=function(a){this.uphill.forEach(a,this);
this.downhill.forEach(a,this)};b.arriveListener=function(a,b){console.log("rhet-butler/transition-stations.js:256","event",b);b.stopPropagation();a.visited();this.elementArrived();return!0};b.elementArrived=function(a){for(;this.nextStation(););"undefined"==typeof quiet_console&&console.log("Waiting for event")}})();rhetButler.TreeBuilder=function(b,a){this.root=b;this.stepClass=a;this.rootStep=null;this.parentStack=[];this.indexes={step:0,group:0,slide:0,item:0}};
(function(){var b=rhetButler.TreeBuilder.prototype;b.getParent=function(a){for(var b,g,d;0<this.parentStack.length;){g=this.parentStack[0];d=g.element;for(b=a;b!=d&&b!=this.root;)b=b.parentElement;if(b==d)return g;this.parentStack.shift().treeFinished()}return null};b.assembleNextElement=function(a){var b,g=this.getParent(a);if(a.classList.contains("root"))0==a.id.length&&(a.id="rhet-root"),this.rootStep=b=new rhetButler.Steps.Root(a,this.indexes),this.indexes.step++,this.parentStack.unshift(b);else if(a.classList.contains("group"))this.indexes.group++,
0==a.id.length&&(a.id="group-"+this.indexes.group),b=new rhetButler.Steps.Group(g,a,this.indexes),this.indexes.step++,this.parentStack.unshift(b);else if(a.classList.contains("slide"))this.indexes.slide++,0==a.id.length&&(a.id="slide-"+this.indexes.slide),b=new rhetButler.Steps.Slide(g,a,this.indexes),this.indexes.step++,this.parentStack.unshift(b);else if(a.classList.contains("item"))for(var d=Array.prototype.filter.call(a.classList,function(a){return/^cue-.*/.test(a)}),e=d.length,f=0;f<e;f++)this.indexes.item++,
0==a.id.length&&(a.id="item-"+this.indexes.item),b=new rhetButler.Steps.Item(g,a,this.indexes,d[f]),b.parent.items.some(function(a){return a==b})?this.indexes.step++:this.indexes.item--};b.buildTree=function(){for(rhetButler.arrayify(this.root.getElementsByClassName(this.stepClass)).forEach(this.assembleNextElement,this);0<this.parentStack.length;)this.parentStack.shift().treeFinished();return this.rootStep}})();
rhetButler.Presenter=function(b,a){this.document=b;this.body=b.body;this.window=a;this.stepsById={};this.currentTransition=this.rootStep=null;this.nextStepIndex=this.previousStepIndex=this.nextStepIndex=this.previousSlideIndex=0};
(function(){var b=rhetButler.Presenter.prototype,a=rhetButler;b.setup=function(b){this.root=a.byId(b);this.body.classList.remove("rhet-disabled");this.body.classList.add("rhet-enabled");a.arrayify(this.root.getElementsByClassName("rhet-butler"));this.rootStep=(new rhetButler.TreeBuilder(this.root,"rhet-butler")).buildTree();this.rootStep.eachStep(function(a){a.addClass("future")});b=this.rootStep.firstItem;this.currentTransition=new rhetButler.TransitionStations(this,b,b,b);this.currentTransition.forceFinish();
this.bindHandlers();a.triggerEvent(this.root,"rhet:init",{api:this})};b.markRange=function(a,b,d){this.stepsList.slice(a,b).forEach(function(a){a=this.containingElements(a);a.steps.forEach(function(a){this.thisClassNotThose(a,d,"before","after","passing")},this);a.slides.forEach(function(a){this.thisClassNotThose(a,d,"before","after","passing")},this)},this)};b.bindHandlers=function(){var a=this;this.root.addEventListener("rhet:init",function(){var b="";a.root.addEventListener("rhet:stepenter",function(a){window.location.hash=
b="#/"+a.target.id},!1);window.addEventListener("hashchange",function(d){window.location.hash!==b&&a.moveTo(a.getElementFromHash())},!1);a.teleport(a.getElementFromHash()||a.rootStep.firstItem)},!1)};b.resolveStep=function(a,b){if(a instanceof rhetButler.Step)return a;switch(a){case "next":switch(b){case "slide":return this.currentTransition.lastStep.nextSlide;case "item":return this.currentTransition.lastStep.nextItem;default:throw"Bad step reference: '"+a+","+b+"'";}case "prev":case "previous":switch(b){case "slide":return this.currentTransition.lastStep.prevSlide;
case "item":return this.currentTransition.lastStep.prevItem;default:throw"Bad step reference: '"+a+","+b+"'";}default:if(a in this.rootStep.childrenById)return this.rootStep.childrenById[a];throw"Bad slide direction: '"+a+"'";}};b.currentStep=function(){return this.currentTransition.currentStep};b.buildTransition=function(a){var b=this.currentTransition.resumeStep(),d=this.currentTransition.currentStep;"undefined"==typeof quiet_console&&console.log("New transition list: S/C/E: "+b.toString()+" / "+
d.toString()+" / "+a.toString());this.currentTransition.cancel();this.currentTransition=new rhetButler.TransitionStations(this,b,d,a)};b.teleport=function(a,b){var d=this.resolveStep(a,b);d&&(this.buildTransition(d),this.currentTransition.forceFinish())};b.moveTo=function(a,b){var d=this.resolveStep(a,b);d&&(this.buildTransition(d),this.currentTransition.start())};b.completeTransition=function(){var b=document.getElementById(this.currentTransition.currentStep.element.id);a.triggerEvent(b,"rhet:stepenter",
{api:this})};b.checkSupport=function(){navigator.userAgent.toLowerCase();if(null!==pfx("perspective")&&body.classList&&body.dataset)return this.body.classList.remove("rhet-not-supported"),this.body.classList.add("rhet-supported"),!0;this.body.className+=" rhet-not-supported ";return!1};b.getElementFromHash=function(){return window.location.hash.replace(/^#\/?/,"")};b.getStep=function(b){"number"===typeof b?b=0>b?this.stepsList[stepsList.length+b]:this.stepsList[b]:"string"===typeof b&&(b=a.byId(b));
return b&&b.id&&this.stepsData[b.id]?b:null};b.prev=function(){var a=this.steps.indexOf(this.activeStep)-1,a=0<=a?this.steps[a]:this.getStep(-1);return this.moveTo(a)};b.next=function(){var a=steps.indexOf(activeStep)+1,a=a<steps.length?steps[a]:steps[0];return this.moveTo(a)};b.thisClassNotThose=function(a,b){var d;for(d=2;d<arguments.length;d++)a.classList.remove(arguments[d]);a.classList.add(b)};b.unmarkEndpoint=function(a,b){var d=this.containingElements(this.steps[a]),e=d.slides[0];d.all.forEach(function(a){a.classList.remove(b)});
this.root.classList.remove(b+"-"+e.id)};b.markTime=function(a,b){this.containingElements(this.steps[a]).all.forEach(function(a){this.thisClassNotThose(a,b,"past","present","future")},this)};b.markEndpoint=function(a,b){var d=this.containingElements(this.steps[a]),e=d.slides[0];d.all.forEach(function(a){this.thisClassNotThose(a,b,"before","after","passing")},this);this.root.classList.add(b+"-"+e.id);return d}})();