lca2020-pay-it-forward/js/reveal.min.js

/*!
 * reveal.js 2.1 r34
 * http://lab.hakim.se/reveal-js
 * MIT licensed
 * 
 * Copyright (C) 2011-2012 Hakim El Hattab, http://hakim.se
 */
var Reveal=(function(){var l=".reveal .slides>section",b=".reveal .slides>section.present>section",R={controls:true,progress:true,history:false,keyboard:true,overview:true,loop:false,autoSlide:0,mouseWheel:true,rollingLinks:true,theme:null,transition:"default",dependencies:[]},Y=R.autoSlide,m=0,e=0,y,G,aj=[],f={},T="WebkitPerspective" in document.body.style||"MozPerspective" in document.body.style||"msPerspective" in document.body.style||"OPerspective" in document.body.style||"perspective" in document.body.style,n="WebkitTransform" in document.body.style||"MozTransform" in document.body.style||"msTransform" in document.body.style||"OTransform" in document.body.style||"transform" in document.body.style,z=0,k=0,D=0,ac={startX:0,startY:0,startSpan:0,startCount:0,handled:false,threshold:80};
function i(ak){if((!n&&!T)){document.body.setAttribute("class","no-transforms");return;}t(R,ak);d();V();}function P(){f.theme=document.querySelector("#theme");
f.wrapper=document.querySelector(".reveal");if(!f.wrapper.querySelector(".progress")&&R.progress){var an=document.createElement("div");an.classList.add("progress");
an.innerHTML="<span></span>";f.wrapper.appendChild(an);}if(!f.wrapper.querySelector(".controls")&&R.controls){var am=document.createElement("aside");am.classList.add("controls");
am.innerHTML='<a class="left" href="#">&#x25C4;</a><a class="right" href="#">&#x25BA;</a><a class="up" href="#">&#x25B2;</a><a class="down" href="#">&#x25BC;</a>';
f.wrapper.appendChild(am);}if(!f.wrapper.querySelector(".state-background")){var al=document.createElement("div");al.classList.add("state-background");
f.wrapper.appendChild(al);}if(!f.wrapper.querySelector(".pause-overlay")){var ak=document.createElement("div");ak.classList.add("pause-overlay");f.wrapper.appendChild(ak);
}f.progress=document.querySelector(".reveal .progress");f.progressbar=document.querySelector(".reveal .progress span");if(R.controls){f.controls=document.querySelector(".reveal .controls");
f.controlsLeft=document.querySelector(".reveal .controls .left");f.controlsRight=document.querySelector(".reveal .controls .right");f.controlsUp=document.querySelector(".reveal .controls .up");
f.controlsDown=document.querySelector(".reveal .controls .down");}}function d(){if(navigator.userAgent.match(/(iphone|ipod|android)/i)){document.documentElement.style.overflow="scroll";
document.body.style.height="120%";window.addEventListener("load",ad,false);window.addEventListener("orientationchange",ad,false);}}function V(){var al=[],ap=[];
for(var am=0,ak=R.dependencies.length;am<ak;am++){var an=R.dependencies[am];if(!an.condition||an.condition()){if(an.async){ap.push(an.src);}else{al.push(an.src);
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document.addEventListener("touchmove",af,false);document.addEventListener("touchend",W,false);window.addEventListener("hashchange",w,false);if(R.keyboard){document.addEventListener("keydown",ah,false);
}if(R.controls&&f.controls){f.controlsLeft.addEventListener("click",q(B),false);f.controlsRight.addEventListener("click",q(j),false);f.controlsUp.addEventListener("click",q(u),false);
f.controlsDown.addEventListener("click",q(F),false);}}function U(){document.removeEventListener("keydown",ah,false);document.removeEventListener("touchstart",A,false);
document.removeEventListener("touchmove",af,false);document.removeEventListener("touchend",W,false);window.removeEventListener("hashchange",w,false);if(R.controls&&f.controls){f.controlsLeft.removeEventListener("click",q(B),false);
f.controlsRight.removeEventListener("click",q(j),false);f.controlsUp.removeEventListener("click",q(u),false);f.controlsDown.removeEventListener("click",q(F),false);
}}function t(al,ak){for(var am in ak){al[am]=ak[am];}}function S(am,ak){var an=am.x-ak.x,al=am.y-ak.y;return Math.sqrt(an*an+al*al);}function q(ak){return function(al){al.preventDefault();
ak.call();};}function ad(){setTimeout(function(){window.scrollTo(0,1);},0);}function r(al,ak){var am=document.createEvent("HTMLEvents",1,2);am.initEvent(al,true,true);
t(am,ak);f.wrapper.dispatchEvent(am);}function N(){if(T&&!("msPerspective" in document.body.style)){var al=document.querySelectorAll(".reveal .slides section a:not(.image)");
for(var am=0,ak=al.length;am<ak;am++){var an=al[am];if(an.textContent&&!an.querySelector("img")&&(!an.className||!an.classList.contains(an,"roll"))){an.classList.add("roll");
an.innerHTML='<span data-title="'+an.text+'">'+an.innerHTML+"</span>";}}}}function I(){if(R.overview){f.wrapper.classList.add("overview");var ak=document.querySelectorAll(l);
for(var ap=0,an=ak.length;ap<an;ap++){var am=ak[ap],au="translateZ(-2500px) translate("+((ap-m)*105)+"%, 0%)";am.setAttribute("data-index-h",ap);am.style.display="block";
am.style.WebkitTransform=au;am.style.MozTransform=au;am.style.msTransform=au;am.style.OTransform=au;am.style.transform=au;if(!am.classList.contains("stack")){am.addEventListener("click",C,true);
}var at=am.querySelectorAll("section");for(var ao=0,al=at.length;ao<al;ao++){var ar=at[ao],aq="translate(0%, "+((ao-(ap===m?e:0))*105)+"%)";ar.setAttribute("data-index-h",ap);
ar.setAttribute("data-index-v",ao);ar.style.display="block";ar.style.WebkitTransform=aq;ar.style.MozTransform=aq;ar.style.msTransform=aq;ar.style.OTransform=aq;
ar.style.transform=aq;ar.addEventListener("click",C,true);}}}}function ae(){if(R.overview){f.wrapper.classList.remove("overview");var an=Array.prototype.slice.call(document.querySelectorAll(".reveal .slides section"));
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}function ab(){var ak=document.body;var al=ak.requestFullScreen||ak.webkitRequestFullScreen||ak.mozRequestFullScreen||ak.msRequestFullScreen;if(al){al.apply(ak);
}}function c(){f.wrapper.classList.add("paused");}function p(){f.wrapper.classList.remove("paused");}function aa(){if(ag()){p();}else{c();}}function ag(){return f.wrapper.classList.contains("paused");
}function a(aq,av){y=G;var an=aj.concat();aj.length=0;var au=m,al=e;m=ai(l,aq===undefined?m:aq);e=ai(b,av===undefined?e:av);stateLoop:for(var ao=0,ar=aj.length;
ao<ar;ao++){for(var am=0;am<an.length;am++){if(an[am]===aj[ao]){an.splice(am,1);continue stateLoop;}}document.documentElement.classList.add(aj[ao]);r(aj[ao]);
}while(an.length){document.documentElement.classList.remove(an.pop());}if(R.progress&&f.progress){f.progressbar.style.width=(m/(document.querySelectorAll(l).length-1))*window.innerWidth+"px";
}if(L()){I();}s();clearTimeout(D);D=setTimeout(h,1500);var ak=document.querySelectorAll(l);var at=ak[m],ap=at.querySelectorAll("section");G=ap[e]||at;if(m!==au||e!==al){r("slidechanged",{indexh:m,indexv:e,previousSlide:y,currentSlide:G});
}else{y=null;}if(y){y.classList.remove("present");}}function ai(an,at){var al=Array.prototype.slice.call(document.querySelectorAll(an)),ar=al.length;if(ar){if(R.loop){at%=ar;
if(at<0){at=ar+at;}}at=Math.max(Math.min(at,ar-1),0);for(var ap=0;ap<ar;ap++){var aq=al[ap];if(L()===false){var ak=Math.abs((at-ap)%(ar-3))||0;aq.style.display=ak>3?"none":"block";
}al[ap].classList.remove("past");al[ap].classList.remove("present");al[ap].classList.remove("future");if(ap<at){al[ap].classList.add("past");}else{if(ap>at){al[ap].classList.add("future");
}}if(aq.querySelector("section")){al[ap].classList.add("stack");}}al[at].classList.add("present");var am=al[at].getAttribute("data-state");if(am){aj=aj.concat(am.split(" "));
}var ao=al[at].getAttribute("data-autoslide");if(ao){Y=parseInt(ao);}else{Y=R.autoSlide;}}else{at=0;}return at;}function s(){if(R.controls&&f.controls){var ak=g();
[f.controlsLeft,f.controlsRight,f.controlsUp,f.controlsDown].forEach(function(al){al.classList.remove("enabled");});if(ak.left){f.controlsLeft.classList.add("enabled");
}if(ak.right){f.controlsRight.classList.add("enabled");}if(ak.up){f.controlsUp.classList.add("enabled");}if(ak.down){f.controlsDown.classList.add("enabled");
}}}function g(){var ak=document.querySelectorAll(l),al=document.querySelectorAll(b);return{left:m>0,right:m<ak.length-1,up:e>0,down:e<al.length-1};}function J(){var ap=window.location.hash;
var ao=ap.slice(2).split("/"),al=ap.replace(/#|\//gi,"");if(isNaN(parseInt(ao[0],10))&&al.length){var am=document.querySelector("#"+al);if(am){var aq=Reveal.getIndices(am);
a(aq.h,aq.v);}else{a(m,e);}}else{var an=parseInt(ao[0],10)||0,ak=parseInt(ao[1],10)||0;a(an,ak);}}function h(){if(R.history){var ak="/";if(m>0||e>0){ak+=m;
}if(e>0){ak+="/"+e;}window.location.hash=ak;}}function M(ak){var ao=m,am=e;if(ak){var ap=!!ak.parentNode.nodeName.match(/section/gi);var an=ap?ak.parentNode:ak;
var al=Array.prototype.slice.call(document.querySelectorAll(l));ao=Math.max(al.indexOf(an),0);if(ap){am=Math.max(Array.prototype.slice.call(ak.parentNode.children).indexOf(ak),0);
}}return{h:ao,v:am};}function v(){if(document.querySelector(b+".present")){var al=document.querySelectorAll(b+".present .fragment:not(.visible)");if(al.length){al[0].classList.add("visible");
r("fragmentshown",{fragment:al[0]});return true;}}else{var ak=document.querySelectorAll(l+".present .fragment:not(.visible)");if(ak.length){ak[0].classList.add("visible");
r("fragmentshown",{fragment:ak[0]});return true;}}return false;}function Q(){if(document.querySelector(b+".present")){var al=document.querySelectorAll(b+".present .fragment.visible");
if(al.length){al[al.length-1].classList.remove("visible");r("fragmenthidden",{fragment:al[al.length-1]});return true;}}else{var ak=document.querySelectorAll(l+".present .fragment.visible");
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if(ak){e=(ak.querySelectorAll("section").length+1)||0;m--;a();}}}}function x(){if(v()===false){g().down?F():j();}O();}function ah(al){if(document.querySelector(":focus")!==null||al.shiftKey||al.altKey||al.ctrlKey||al.metaKey){return;
}var ak=true;switch(al.keyCode){case 80:case 33:Z();break;case 78:case 34:x();break;case 72:case 37:B();break;case 76:case 39:j();break;case 75:case 38:u();
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if(Math.abs(ac.startSpan-ao)>ac.threshold){ac.handled=true;if(ao<ac.startSpan){I();}else{ae();}}ap.preventDefault();}else{if(ap.touches.length===1&&ac.startCount!==2){var al=an-ac.startX,ak=am-ac.startY;
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ae();m=this.getAttribute("data-index-h");e=this.getAttribute("data-index-v");a();}}return{initialize:i,slide:a,left:B,right:j,up:u,down:F,prev:Z,next:x,navigateTo:a,navigateLeft:B,navigateRight:j,navigateUp:u,navigateDown:F,navigatePrev:Z,navigateNext:x,toggleOverview:X,addEventListeners:E,removeEventListeners:U,getIndices:M,getPreviousSlide:function(){return y;
},getCurrentSlide:function(){return G;},getQueryHash:function(){var ak={};location.search.replace(/[A-Z0-9]+?=(\w*)/gi,function(al){ak[al.split("=").shift()]=al.split("=").pop();
});return ak;},addEventListener:function(al,am,ak){if("addEventListener" in window){(f.wrapper||document.querySelector(".reveal")).addEventListener(al,am,ak);
}},removeEventListener:function(al,am,ak){if("addEventListener" in window){(f.wrapper||document.querySelector(".reveal")).removeEventListener(al,am,ak);
}}};})();