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$(function(){

// Hide Quizzes and Polls

$(".quiz").hide();

$(".poll").hide();

// Bind checkbox/label click for slide toggle

$("#slide-only-toggle").change(function(){

$(".materials > *").not(".slide").toggleClass("hidden");

$(".lab").toggleClass("hidden");

});

// Parse username from querystring

var urlSearch = window.location.search,

teacherQuery = urlSearch.match(/teacher=[a-z,A-Z,0-9]*/),

username;

if(teacherQuery && teacherQuery.length == 1){

username = teacherQuery[0].substring(8, teacherQuery[0].length);

$.ajax(

{

url: "https://api.github.com/users/"+username,

success: function(data, textStatus, jqXHR){

$("#teachername").text(data.name);

$("<span/>",

{

text: data.login

}).appendTo("#teacherusername");

// Profile email

if(data.email){

$("<span/>",

{

text: data.email

}).appendTo("#teacheremail");

}

else{

$("#teacheremail").toggleClass("hidden");

}

// Profile company

if(data.company){

$("<span/>",

{

text: data.company

}).appendTo("#teacherorganization");

}

else{

$("#teacherorganization").toggleClass("hidden");

}

// Profile location

if(data.location){

$("<span/>",

{

text: data.location

}).appendTo("#teacherlocation");

}

else{

$("#teacherlocation").toggleClass("hidden");

}

$("<img/>",

{

src: data.avatar_url,

class: "img-circle img-thumbnail"

}).appendTo("#teacheravatar");

$("<span/>",

{

text: data.public_repos,

class: "badge"

}).appendTo("#teacherrepo");

$("<span/>",

{

text: data.followers,

class: "badge"

}).appendTo("#teacherfollowers");

$("<span/>",

{

text: data.following,

class: "badge"

}).appendTo("#teacherfollowing");

$("#teacher").toggleClass("hidden");

// Toggle material when self-taught

$("div.video").toggleClass("hidden");

updateSlideSize();

}

});

}

// Bind checkbox toggle for TOC

var shortcuts = {};

shortcuts.toggle = function(event){

console.log(event.keyCode);

// Help "?" toggle

if(event.shiftKey && event.keyCode === 191){

$('#help').modal('toggle');

}

// TOC "T" toggle

else if(event.shiftKey && event.keyCode === 84){

$(".col-content").toggleClass("shift-left");

$(".col-toc").toggleClass("shift-left");

}

}

document.addEventListener("keydown", shortcuts.toggle, false);

// Conditionally Render the TOC

// List of Legacy Classes

var legacyClasses = ["GitHub Foundations", "GitHub Intermediate", "GitHub Advanced"];

// Get the current class title

var classTitle = $("header.colorful > div.container > h2").html();

// If the current class is not in the list of legacy classes, hide the TOC

// Otherwise render it out.

if ($.inArray(classTitle, legacyClasses) == -1) {

$(".module-toc").hide();

}

else {

buildToc();

}

// Reframe slides on any window resize

$(window).resize(function () {

updateSlideSize();

});

// Ensure slide scale at start

updateSlideSize();

// Startup slide scrollsnap watching

$(document).scrollsnap({

snaps: '.slide',

proximity: 100

});

function updateSlideSize(){

var h = window.innerHeight,

even = $("hr:even");

even.each(function(index){

$(this).nextUntil("hr").wrapAll("<div class='slide'><div class='alignment'></div></div>");

});

$(".slide").css("height", h + "px");

}

//Time toggle keybinding

var Timer = (function() {

// this stores target time on window.countDownTo

function now() { return new Date().getTime() }

function bareCallback(aTimer) {

var delta = window.countDownTo.getTime() - now()

var timeLeft = delta > 0

var noTimeLeft = !(timeLeft)

if (noTimeLeft) {

aTimer.clearTimer()

return

}

var min_float = delta / 1000 / 60

var minutes = Math.floor(min_float)

var seconds = Math.floor((min_float - minutes) * 60)

if (minutes < 10) { minutes = "0" + minutes }

if (seconds < 10) { seconds = "0" + seconds}

aTimer.shouldDisplay(minutes + ":" + seconds)

}

var Timer = function(display) {

var aTimer = this

this.display = display

this.callback = function() { bareCallback(aTimer) }

}

Timer.prototype.blankSlate = function() {

this.clearTimer("")

}

Timer.prototype.clearTimer = function(textToShow) {

textToShow = typeof textToShow !== 'undefined' ? textToShow : "00:00"

this.shouldDisplay(textToShow)

window.countDownTo = 0

if (window.counter) { window.clearInterval(window.counter) }

}

Timer.prototype.shouldDisplay = function(text) {

this.display.text(text)

}

Timer.prototype.startCountdown = function(durationInMinutes) {

// timer so that every second, update displayed time

var countDownTo = new Date(now() + (1000 * 60 * durationInMinutes))

window.countDownTo = countDownTo

this.callback()

window.counter = setInterval(this.callback, 1000 * 1)

}

return Timer;

})()

//receive parameter for counttime

var timer = new Timer($("#time-left"));

$('.timer-label').click(function(e) {

e.preventDefault()

timer.blankSlate()

$("#start-stop").show();

$(".time-amount").show();

})

$('#timerForm').submit(function(e) {

e.preventDefault()

$(".time-amount").hide();

var duration = $('#minutes').val()

timer.startCountdown(duration)

})

// Table of Contents header parsing and builder

function buildToc(){

var headings = $(".deck h2"),

toc = $("#toc-list");

for(var h=0; h<headings.length; h++){

var item,

headingOrig;

headingOrig = headings[h].textContent.toLowerCase().replace(/&\s/, "").split(" ");

var headingSep = "";

for(var o=0;o<headingOrig.length;o++){

if(o > 0 && 0 < headingOrig.length){

headingSep += "-";

}

headingSep = headingSep + headingOrig[o]

}

item = $('<li><a href="#' + headingSep + '">' + headings[h].innerHTML + '</a></li>');

toc.append(item);

if(headings[h].parentElement.getAttribute("class").indexOf("alignment")>-1){

headings[h].parentElement.setAttribute("id", headingSep);

}

else{

headings[h].setAttribute("id", headingSep);

}

$('.deck').scrollspy({ target: '#toc' });

}

}

});