var oldTether = window.Tether;
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destructure non-iterable instance")}}(),P=C.Utils,r=P.getBounds,f=P.extend,c=P.updateClasses,T=P.defer,U=["left","top","right","bottom"];C.modules.push({position:function(t){var e=this,o=t.top,i=t.left,n=t.targetAttachment;if(!this.options.constraints)return!0;var s=this.cache("element-bounds",function(){return r(e.element)}),a=s.height,h=s.width;if(0===h&&0===a&&"undefined"!=typeof this.lastSize){var l=this.lastSize;h=l.width,a=l.height}var d=this.cache("target-bounds",function(){return e.getTargetBounds()}),u=d.height,p=d.width,g=[this.getClass("pinned"),this.getClass("out-of-bounds")];this.options.constraints.forEach(function(t){var e=t.outOfBoundsClass,o=t.pinnedClass;e&&g.push(e),o&&g.push(o)}),g.forEach(function(t){["left","top","right","bottom"].forEach(function(e){g.push(t+"-"+e)})});var m=[],v=f({},n),y=f({},this.attachment);return this.options.constraints.forEach(function(t){var r=t.to,s=t.attachment,f=t.pin;"undefined"==typeof s&&(s="");var l=void 0,d=void 0;if(s.indexOf(" ")>=0){var c=s.split(" "),g=M(c,2);d=g[0],l=g[1]}else l=d=s;var w=b(e,r);("target"===d||"both"===d)&&(o<w[1]&&"top"===v.top&&(o+=u,v.top="bottom"),o+a>w[3]&&"bottom"===v.top&&(o-=u,v.top="top")),"together"===d&&(o<w[1]&&"top"===v.top&&("bottom"===y.top?(o+=u,v.top="bottom",o+=a,y.top="top"):"top"===y.top&&(o+=u,v.top="bottom",o-=a,y.top="bottom")),o+a>w[3]&&"bottom"===v.top&&("top"===y.top?(o-=u,v.top="top",o-=a,y.top="bottom"):"bottom"===y.top&&(o-=u,v.top="top",o+=a,y.top="top")),"middle"===v.top&&(o+a>w[3]&&"top"===y.top?(o-=a,y.top="bottom"):o<w[1]&&"bottom"===y.top&&(o+=a,y.top="top"))),("target"===l||"both"===l)&&(i<w[0]&&"left"===v.left&&(i+=p,v.left="right"),i+h>w[2]&&"right"===v.left&&(i-=p,v.left="left")),"together"===l&&(i<w[0]&&"left"===v.left?"right"===y.left?(i+=p,v.left="right",i+=h,y.left="left"):"left"===y.left&&(i+=p,v.left="right",i-=h,y.left="right"):i+h>w[2]&&"right"===v.left?"left"===y.left?(i-=p,v.left="left",i-=h,y.left="right"):"right"===y.left&&(i-=p,v.left="left",i+=h,y.left="left"):"center"===v.left&&(i+h>w[2]&&"left"===y.left?(i-=h,y.left="right"):i<w[0]&&"right"===y.left&&(i+=h,y.left="left"))),("element"===d||"both"===d)&&(o<w[1]&&"bottom"===y.top&&(o+=a,y.top="top"),o+a>w[3]&&"top"===y.top&&(o-=a,y.top="bottom")),("element"===l||"both"===l)&&(i<w[0]&&"right"===y.left&&(i+=h,y.left="left"),i+h>w[2]&&"left"===y.left&&(i-=h,y.left="right")),"string"==typeof f?f=f.split(",").map(function(t){return t.trim()}):f===!0&&(f=["top","left","right","bottom"]),f=f||[];var C=[],O=[];o<w[1]&&(f.indexOf("top")>=0?(o=w[1],C.push("top")):O.push("top")),o+a>w[3]&&(f.indexOf("bottom")>=0?(o=w[3]-a,C.push("bottom")):O.push("bottom")),i<w[0]&&(f.indexOf("left")>=0?(i=w[0],C.push("left")):O.push("left")),i+h>w[2]&&(f.indexOf("right")>=0?(i=w[2]-h,C.push("right")):O.push("right")),C.length&&!function(){var t=void 0;t="undefined"!=typeof e.options.pinnedClass?e.options.pinnedClass:e.getClass("pinned"),m.push(t),C.forEach(function(e){m.push(t+"-"+e)})}(),O.length&&!function(){var t=void 0;t="undefined"!=typeof e.options.outOfBoundsClass?e.options.outOfBoundsClass:e.getClass("out-of-bounds"),m.push(t),O.forEach(function(e){m.push(t+"-"+e)})}(),(C.indexOf("left")>=0||C.indexOf("right")>=0)&&(y.left=v.left=!1),(C.indexOf("top")>=0||C.indexOf("bottom")>=0)&&(y.top=v.top=!1),(v.top!==n.top||v.left!==n.left||y.top!==e.attachment.top||y.left!==e.attachment.left)&&e.updateAttachClasses(y,v)}),T(function(){e.options.addTargetClasses!==!1&&c(e.target,m,g),c(e.element,m,g)}),{top:o,left:i}}});var P=C.Utils,r=P.getBounds,c=P.updateClasses,T=P.defer;C.modules.push({position:function(t){var e=this,o=t.top,i=t.left,n=this.cache("element-bounds",function(){return r(e.element)}),s=n.height,a=n.width,f=this.getTargetBounds(),h=o+s,l=i+a,d=[];o<=f.bottom&&h>=f.top&&["left","right"].forEach(function(t){var e=f[t];(e===i||e===l)&&d.push(t)}),i<=f.right&&l>=f.left&&["top","bottom"].forEach(function(t){var e=f[t];(e===o||e===h)&&d.push(t)});var u=[],p=[],g=["left","top","right","bottom"];return u.push(this.getClass("abutted")),g.forEach(function(t){u.push(e.getClass("abutted")+"-"+t)}),d.length&&p.push(this.getClass("abutted")),d.forEach(function(t){p.push(e.getClass("abutted")+"-"+t)}),T(function(){e.options.addTargetClasses!==!1&&c(e.target,p,u),c(e.element,p,u)}),!0}});var M=function(){function t(t,e){var o=[],i=!0,n=!1,r=void 0;try{for(var s,a=t[Symbol.iterator]();!(i=(s=a.next()).done)&&(o.push(s.value),!e||o.length!==e);i=!0);}catch(f){n=!0,r=f}finally{try{!i&&a["return"]&&a["return"]()}finally{if(n)throw r}}return o}return function(e,o){if(Array.isArray(e))return e;if(Symbol.iterator in Object(e))return t(e,o);throw new TypeError("Invalid attempt to destructure non-iterable instance")}}();return C.modules.push({position:function(t){var e=t.top,o=t.left;if(this.options.shift){var i=this.options.shift;"function"==typeof this.options.shift&&(i=this.options.shift.call(this,{top:e,left:o}));var n=void 0,r=void 0;if("string"==typeof i){i=i.split(" "),i[1]=i[1]||i[0];var s=M(i,2);n=s[0],r=s[1],n=parseFloat(n,10),r=parseFloat(r,10)}else n=i.top,r=i.left;return e+=n,o+=r,{top:e,left:o}}}}),R});
H5P.Tether = Tether;
window.Tether = oldTether;
;
var oldDrop = window.Drop;
var oldTether = window.Tether;
Tether = H5P.Tether;
!function(t,e){"function"==typeof define&&define.amd?define(["tether"],e):"object"==typeof exports?module.exports=e(require("tether")):t.Drop=e(t.Tether)}(this,function(t){"use strict";function e(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function n(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}function o(t){var e=t.split(" "),n=a(e,2),o=n[0],i=n[1];if(["left","right"].indexOf(o)>=0){var s=[i,o];o=s[0],i=s[1]}return[o,i].join(" ")}function i(t,e){for(var n=void 0,o=[];-1!==(n=t.indexOf(e));)o.push(t.splice(n,1));return o}function s(){var a=arguments.length<=0||void 0===arguments[0]?{}:arguments[0],u=function(){for(var t=arguments.length,e=Array(t),n=0;t>n;n++)e[n]=arguments[n];return new(r.apply(b,[null].concat(e)))};p(u,{createContext:s,drops:[],defaults:{}});var g={classPrefix:"drop",defaults:{position:"bottom left",openOn:"click",beforeClose:null,constrainToScrollParent:!0,constrainToWindow:!0,classes:"",remove:!1,tetherOptions:{}}};p(u,g,a),p(u.defaults,g.defaults,a.defaults),"undefined"==typeof x[u.classPrefix]&&(x[u.classPrefix]=[]),u.updateBodyClasses=function(){for(var t=!1,e=x[u.classPrefix],n=e.length,o=0;n>o;++o)if(e[o].isOpened()){t=!0;break}t?d(document.body,u.classPrefix+"-open"):c(document.body,u.classPrefix+"-open")};var b=function(s){function r(t){if(e(this,r),l(Object.getPrototypeOf(r.prototype),"constructor",this).call(this),this.options=p({},u.defaults,t),this.target=this.options.target,"undefined"==typeof this.target)throw new Error("Drop Error: You must provide a target.");var n="data-"+u.classPrefix,o=this.target.getAttribute(n);o&&(this.options.content=o);for(var i=["position","openOn"],s=0;s<i.length;++s){var a=this.target.getAttribute(n+"-"+i[s]);a&&(this.options[i[s]]=a)}this.options.classes&&this.options.addTargetClasses!==!1&&d(this.target,this.options.classes),u.drops.push(this),x[u.classPrefix].push(this),this._boundEvents=[],this.bindMethods(),this.setupElements(),this.setupEvents(),this.setupTether()}return n(r,s),h(r,[{key:"_on",value:function(t,e,n){this._boundEvents.push({element:t,event:e,handler:n}),t.addEventListener(e,n)}},{key:"bindMethods",value:function(){this.transitionEndHandler=this._transitionEndHandler.bind(this)}},{key:"setupElements",value:function(){var t=this;if(this.drop=document.createElement("div"),d(this.drop,u.classPrefix),this.options.classes&&d(this.drop,this.options.classes),this.content=document.createElement("div"),d(this.content,u.classPrefix+"-content"),"function"==typeof this.options.content){var e=function(){var e=t.options.content.call(t,t);if("string"==typeof e)t.content.innerHTML=e;else{if("object"!=typeof e)throw new Error("Drop Error: Content function should return a string or HTMLElement.");t.content.innerHTML="",t.content.appendChild(e)}};e(),this.on("open",e.bind(this))}else"object"==typeof this.options.content?this.content.appendChild(this.options.content):this.content.innerHTML=this.options.content;this.drop.appendChild(this.content)}},{key:"setupTether",value:function(){var e=this.options.position.split(" ");e[0]=E[e[0]],e=e.join(" ");var n=[];this.options.constrainToScrollParent?n.push({to:"scrollParent",pin:"top, bottom",attachment:"together none"}):n.push({to:"scrollParent"}),this.options.constrainToWindow!==!1?n.push({to:"window",attachment:"together"}):n.push({to:"window"});var i={element:this.drop,target:this.target,attachment:o(e),targetAttachment:o(this.options.position),classPrefix:u.classPrefix,offset:"0 0",targetOffset:"0 0",enabled:!1,constraints:n,addTargetClasses:this.options.addTargetClasses};this.options.tetherOptions!==!1&&(this.tether=new t(p({},i,this.options.tetherOptions)))}},{key:"setupEvents",value:function(){var t=this;if(this.options.openOn){if("always"===this.options.openOn)return void setTimeout(this.open.bind(this));var e=this.options.openOn.split(" ");if(e.indexOf("click")>=0)for(var n=function(e){t.toggle(e),e.preventDefault()},o=function(e){t.isOpened()&&(e.target===t.drop||t.drop.contains(e.target)||e.target===t.target||t.target.contains(e.target)||t.close(e))},i=0;i<y.length;++i){var s=y[i];this._on(this.target,s,n),this._on(document,s,o)}var r=!1,a=null,h=function(e){r=!0,t.open(e)},l=function(e){r=!1,"undefined"!=typeof a&&clearTimeout(a),a=setTimeout(function(){r||t.close(e),a=null},50)};e.indexOf("hover")>=0&&(this._on(this.target,"mouseover",h),this._on(this.drop,"mouseover",h),this._on(this.target,"mouseout",l),this._on(this.drop,"mouseout",l)),e.indexOf("focus")>=0&&(this._on(this.target,"focus",h),this._on(this.drop,"focus",h),this._on(this.target,"blur",l),this._on(this.drop,"blur",l))}}},{key:"isOpened",value:function(){return this.drop?f(this.drop,u.classPrefix+"-open"):void 0}},{key:"toggle",value:function(t){this.isOpened()?this.close(t):this.open(t)}},{key:"open",value:function(t){var e=this;this.isOpened()||(this.drop.parentNode||document.body.appendChild(this.drop),"undefined"!=typeof this.tether&&this.tether.enable(),d(this.drop,u.classPrefix+"-open"),d(this.drop,u.classPrefix+"-open-transitionend"),setTimeout(function(){e.drop&&d(e.drop,u.classPrefix+"-after-open")}),"undefined"!=typeof this.tether&&this.tether.position(),this.trigger("open"),u.updateBodyClasses())}},{key:"_transitionEndHandler",value:function(t){t.target===t.currentTarget&&(f(this.drop,u.classPrefix+"-open")||c(this.drop,u.classPrefix+"-open-transitionend"),this.drop.removeEventListener(m,this.transitionEndHandler))}},{key:"beforeCloseHandler",value:function(t){var e=!0;return this.isClosing||"function"!=typeof this.options.beforeClose||(this.isClosing=!0,e=this.options.beforeClose(t,this)!==!1),this.isClosing=!1,e}},{key:"close",value:function(t){this.isOpened()&&this.beforeCloseHandler(t)&&(c(this.drop,u.classPrefix+"-open"),c(this.drop,u.classPrefix+"-after-open"),this.drop.addEventListener(m,this.transitionEndHandler),this.trigger("close"),"undefined"!=typeof this.tether&&this.tether.disable(),u.updateBodyClasses(),this.options.remove&&this.remove(t))}},{key:"remove",value:function(t){this.close(t),this.drop.parentNode&&this.drop.parentNode.removeChild(this.drop)}},{key:"position",value:function(){this.isOpened()&&"undefined"!=typeof this.tether&&this.tether.position()}},{key:"destroy",value:function(){this.remove(),"undefined"!=typeof this.tether&&this.tether.destroy();for(var t=0;t<this._boundEvents.length;++t){var e=this._boundEvents[t],n=e.element,o=e.event,s=e.handler;n.removeEventListener(o,s)}this._boundEvents=[],this.tether=null,this.drop=null,this.content=null,this.target=null,i(x[u.classPrefix],this),i(u.drops,this)}}]),r}(v);return u}var r=Function.prototype.bind,a=function(){function t(t,e){var n=[],o=!0,i=!1,s=void 0;try{for(var r,a=t[Symbol.iterator]();!(o=(r=a.next()).done)&&(n.push(r.value),!e||n.length!==e);o=!0);}catch(h){i=!0,s=h}finally{try{!o&&a["return"]&&a["return"]()}finally{if(i)throw s}}return n}return function(e,n){if(Array.isArray(e))return e;if(Symbol.iterator in Object(e))return t(e,n);throw new TypeError("Invalid attempt to destructure non-iterable instance")}}(),h=function(){function t(t,e){for(var n=0;n<e.length;n++){var o=e[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,n,o){return n&&t(e.prototype,n),o&&t(e,o),e}}(),l=function(t,e,n){for(var o=!0;o;){var i=t,s=e,r=n;a=l=h=void 0,o=!1,null===i&&(i=Function.prototype);var a=Object.getOwnPropertyDescriptor(i,s);if(void 0!==a){if("value"in a)return a.value;var h=a.get;return void 0===h?void 0:h.call(r)}var l=Object.getPrototypeOf(i);if(null===l)return void 0;t=l,e=s,n=r,o=!0}},u=t.Utils,p=u.extend,d=u.addClass,c=u.removeClass,f=u.hasClass,v=u.Evented,y=["click"];"ontouchstart"in document.documentElement&&y.push("touchstart");var g={WebkitTransition:"webkitTransitionEnd",MozTransition:"transitionend",OTransition:"otransitionend",transition:"transitionend"},m="";for(var b in g)if({}.hasOwnProperty.call(g,b)){var O=document.createElement("p");"undefined"!=typeof O.style[b]&&(m=g[b])}var E={left:"right",right:"left",top:"bottom",bottom:"top",middle:"middle",center:"center"},x={},P=s();return document.addEventListener("DOMContentLoaded",function(){P.updateBodyClasses()}),P});
H5P.Drop = Drop;
window.Drop = oldDrop;
window.Tether = oldTether;
;
var H5P = H5P || {};
/**
 * Transition contains helper function relevant for transitioning
 */
H5P.Transition = (function ($) {

  /**
   * @class
   * @namespace H5P
   */
  Transition = {};

  /**
   * @private
   */
  Transition.transitionEndEventNames = {
    'WebkitTransition': 'webkitTransitionEnd',
    'transition':       'transitionend',
    'MozTransition':    'transitionend',
    'OTransition':      'oTransitionEnd',
    'msTransition':     'MSTransitionEnd'
  };

  /**
   * @private
   */
  Transition.cache = [];

  /**
   * Get the vendor property name for an event
   *
   * @function H5P.Transition.getVendorPropertyName
   * @static
   * @private
   * @param  {string} prop Generic property name
   * @return {string}      Vendor specific property name
   */
  Transition.getVendorPropertyName = function (prop) {

    if (Transition.cache[prop] !== undefined) {
      return Transition.cache[prop];
    }

    var div = document.createElement('div');

    // Handle unprefixed versions (FF16+, for example)
    if (prop in div.style) {
      Transition.cache[prop] = prop;
    }
    else {
      var prefixes = ['Moz', 'Webkit', 'O', 'ms'];
      var prop_ = prop.charAt(0).toUpperCase() + prop.substr(1);

      if (prop in div.style) {
        Transition.cache[prop] = prop;
      }
      else {
        for (var i = 0; i < prefixes.length; ++i) {
          var vendorProp = prefixes[i] + prop_;
          if (vendorProp in div.style) {
            Transition.cache[prop] = vendorProp;
            break;
          }
        }
      }
    }

    return Transition.cache[prop];
  };

  /**
   * Get the name of the transition end event
   *
   * @static
   * @private
   * @return {string}  description
   */
  Transition.getTransitionEndEventName = function () {
    return Transition.transitionEndEventNames[Transition.getVendorPropertyName('transition')] || undefined;
  };

  /**
   * Helper function for listening on transition end events
   *
   * @function H5P.Transition.onTransitionEnd
   * @static
   * @param  {domElement} $element The element which is transitioned
   * @param  {function} callback The callback to be invoked when transition is finished
   * @param  {number} timeout  Timeout in milliseconds. Fallback if transition event is never fired
   */
  Transition.onTransitionEnd = function ($element, callback, timeout) {
    // Fallback on 1 second if transition event is not supported/triggered
    timeout = timeout || 1000;
    Transition.transitionEndEventName = Transition.transitionEndEventName || Transition.getTransitionEndEventName();
    var callbackCalled = false;

    var doCallback = function () {
      if (callbackCalled) {
        return;
      }
      $element.off(Transition.transitionEndEventName, callback);
      callbackCalled = true;
      clearTimeout(timer);
      callback();
    };

    var timer = setTimeout(function () {
      doCallback();
    }, timeout);

    $element.on(Transition.transitionEndEventName, function () {
      doCallback();
    });
  };

  /**
   * Wait for a transition - when finished, invokes next in line
   *
   * @private
   *
   * @param {Object[]}    transitions             Array of transitions
   * @param {H5P.jQuery}  transitions[].$element  Dom element transition is performed on
   * @param {number=}     transitions[].timeout   Timeout fallback if transition end never is triggered
   * @param {bool=}       transitions[].break     If true, sequence breaks after this transition
   * @param {number}      index                   The index for current transition
   */
  var runSequence = function (transitions, index) {
    if (index >= transitions.length) {
      return;
    }

    var transition = transitions[index];
    H5P.Transition.onTransitionEnd(transition.$element, function () {
      if (transition.end) {
        transition.end();
      }
      if (transition.break !== true) {
        runSequence(transitions, index+1);
      }
    }, transition.timeout || undefined);
  };

  /**
   * Run a sequence of transitions
   *
   * @function H5P.Transition.sequence
   * @static
   * @param {Object[]}    transitions             Array of transitions
   * @param {H5P.jQuery}  transitions[].$element  Dom element transition is performed on
   * @param {number=}     transitions[].timeout   Timeout fallback if transition end never is triggered
   * @param {bool=}       transitions[].break     If true, sequence breaks after this transition
   */
  Transition.sequence = function (transitions) {
    runSequence(transitions, 0);
  };

  return Transition;
})(H5P.jQuery);
;
var H5P = H5P || {};

/**
 * Class responsible for creating a help text dialog
 */
H5P.JoubelHelpTextDialog = (function ($) {

  /**
   * Display a pop-up containing a message.
   *
   * @param {H5P.jQuery}  $container  The container which message dialog will be appended to
   * @param {string}      message     The message
   * @return {H5P.jQuery}
   */
  function JoubelHelpTextDialog(header, message) {
    var $helpTextDialogBox = $('<div>', {
      'class': 'joubel-help-text-dialog-box'
    });

    var $helpTextDialogBackground = $('<div>', {
      'class': 'joubel-help-text-dialog-background'
    }).appendTo($helpTextDialogBox);

    var $helpTextDialogContainer = $('<div>', {
      'class': 'joubel-help-text-dialog-container'
    }).appendTo($helpTextDialogBox);

    $('<div>', {
      'class': 'joubel-help-text-header',
      'html': header
    }).appendTo($helpTextDialogContainer);

    $('<div>', {
      'class': 'joubel-help-text-body',
      'html': message
    }).appendTo($helpTextDialogContainer);

    $('<div>', {
      'class': 'joubel-help-text-remove',
      'tabindex': 0
    }).click(function () {
      $helpTextDialogBox.remove();
    }).keydown(function (e) {
      var keyPressed = e.which;
      // 32 - space
      if (keyPressed === 32) {
        $(this).click();
        e.preventDefault();
      }
    }).appendTo($helpTextDialogContainer);

    return $helpTextDialogBox;
  }

  return JoubelHelpTextDialog;
}(H5P.jQuery));
;
var H5P = H5P || {};

/**
 * Class responsible for creating auto-disappearing dialogs
 */
H5P.JoubelMessageDialog = (function ($) {

  /**
   * Display a pop-up containing a message.
   *
   * @param {H5P.jQuery} $container The container which message dialog will be appended to
   * @param {string} message The message
   * @return {H5P.jQuery}
   */
  function JoubelMessageDialog ($container, message) {
    var timeout;

    var removeDialog = function () {
      $warning.remove();
      clearTimeout(timeout);
      $container.off('click.messageDialog');
    };

    // Create warning popup:
    var $warning = $('<div/>', {
      'class': 'joubel-message-dialog',
      text: message
    }).appendTo($container);

    // Remove after 3 seconds or if user clicks anywhere in $container:
    timeout = setTimeout(removeDialog, 3000);
    $container.on('click.messageDialog', removeDialog);

    return $warning;
  }

  return JoubelMessageDialog;
})(H5P.jQuery);
;
var H5P = H5P || {};

/**
 * Class responsible for creating a circular progress bar
 */

H5P.JoubelProgressCircle = (function ($) {

  /**
   * Constructor for the Progress Circle
   *
   * @param {Number} number The amount of progress to display
   * @param {string} progressColor Color for the progress meter
   * @param {string} backgroundColor Color behind the progress meter
   */
  function ProgressCircle(number, progressColor, fillColor, backgroundColor) {
    progressColor = progressColor || '#096bcb';
    fillColor = fillColor || '#f0f0f0';
    backgroundColor = backgroundColor || '#ffffff';
    var progressColorRGB = this.hexToRgb(progressColor);

    //Verify number
    try {
      number = Number(number);
      if (number === '') {
        throw 'is empty';
      }
      if (isNaN(number)) {
        throw 'is not a number';
      }
    } catch (e) {
      console.log('Progress circle input' + e);
      number = 'err';
    }

    //Draw circle
    if (number > 100) {
      number = 100;
    }

    var decimalNumber = number / 100;

    // We can not use rgba, since they will stack on top of each other.
    // Instead we create the equivalent of the rgba color
    // and applies this to the activeborder and background color.
    var progressColorString = 'rgb(' + parseInt(this.rgbFromAlpha(progressColorRGB.r, decimalNumber), 10) +
      ',' + parseInt(this.rgbFromAlpha(progressColorRGB.g, decimalNumber), 10) +
      ',' + parseInt(this.rgbFromAlpha(progressColorRGB.b, decimalNumber), 10) + ')';

    // Circle wrapper
    var $wrapper = $('<div/>', {
      'class': "joubel-progress-circle-wrapper"
    });

    //Active border indicates progress
    var $activeBorder = $('<div/>', {
      'class': "joubel-progress-circle-active-border"
    }).appendTo($wrapper);

    //Background circle
    var $backgroundCircle = $('<div/>', {
      'class': "joubel-progress-circle-circle"
    }).appendTo($activeBorder);

    //Progress text/number
    $('<span/>', {
      'text': number,
      'class': "joubel-progress-circle-percentage"
    }).appendTo($backgroundCircle);

    var deg = number * 3.6;
    if (deg <= 180) {
      $activeBorder.css('background-image',
        'linear-gradient(' + (90 + deg) + 'deg, transparent 50%, ' + fillColor + ' 50%),' +
        'linear-gradient(90deg, ' + fillColor + ' 50%, transparent 50%)')
        .css('border', '2px solid' + backgroundColor)
        .css('background-color', progressColorString);
    } else {
      $activeBorder.css('background-image',
        'linear-gradient(' + (deg - 90) + 'deg, transparent 50%, ' + progressColorString + ' 50%),' +
        'linear-gradient(90deg, ' + fillColor + ' 50%, transparent 50%)')
        .css('border', '2px solid' + backgroundColor)
        .css('background-color', progressColorString);
    }

    this.$activeBorder = $activeBorder;
    this.$backgroundCircle = $backgroundCircle;
    this.$wrapper = $wrapper;

    this.initResizeFunctionality();

    return $wrapper;
  }

  /**
   * Initializes resize functionality for the progress circle
   */
  ProgressCircle.prototype.initResizeFunctionality = function () {
    var self = this;

    $(window).resize(function () {
      // Queue resize
      setTimeout(function () {
        self.resize();
      });
    });

    // First resize
    setTimeout(function () {
      self.resize();
    }, 0);
  };

  /**
   * Resize function makes progress circle grow or shrink relative to parent container
   */
  ProgressCircle.prototype.resize = function () {
    var $parent = this.$wrapper.parent();

    if ($parent !== undefined && $parent) {

      // Measurements
      var fontSize = parseInt($parent.css('font-size'), 10);

      // Static sizes
      var fontSizeMultiplum = 3.75;
      var progressCircleWidthPx = parseInt((fontSize / 4.5), 10) % 2 === 0 ? parseInt((fontSize / 4.5), 10) : parseInt((fontSize / 4.5), 10) + 1;
      var progressCircleOffset = progressCircleWidthPx / 2;

      var width = fontSize * fontSizeMultiplum;
      var height = fontSize * fontSizeMultiplum;
      this.$activeBorder.css({
        'width': width,
        'height': height
      });

      this.$backgroundCircle.css({
        'width': width - progressCircleWidthPx,
        'height': height - progressCircleWidthPx,
        'top': progressCircleOffset,
        'left': progressCircleOffset
      });
    }
  };

  /**
   * Hex to RGB conversion
   * @param hex
   * @returns {{r: Number, g: Number, b: Number}}
   */
  ProgressCircle.prototype.hexToRgb = function (hex) {
    var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
    return result ? {
      r: parseInt(result[1], 16),
      g: parseInt(result[2], 16),
      b: parseInt(result[3], 16)
    } : null;
  };

  /**
   * Convert rgb and opacity to new rgb
   * @param {number} colorValue
   * @param {float} opacity
   * @returns {number} blended colorValue
   */
  ProgressCircle.prototype.rgbFromAlpha = function (colorValue, opacity) {
    return (opacity * colorValue) + (1 - opacity) * 255;
  };

  return ProgressCircle;

}(H5P.jQuery));
;
var H5P = H5P || {};

H5P.SimpleRoundedButton = (function ($) {

  /**
   * Creates a new tip
   */
  function SimpleRoundedButton(text) {

    var $simpleRoundedButton = $('<div>', {
      'class': 'joubel-simple-rounded-button',
      'title': text,
      'role': 'button',
      'tabindex': '0'
    }).keydown(function (e) {
      var keyPressed = e.which;
      // 32 - space
      if (keyPressed === 32) {
        $(this).click();
        e.preventDefault();
      }
      $(this).focus();
    });

    $('<span>', {
      'class': 'joubel-simple-rounded-button-text',
      'html': text
    }).appendTo($simpleRoundedButton);

    return $simpleRoundedButton;
  }

  return SimpleRoundedButton;
}(H5P.jQuery));
;
var H5P = H5P || {};

/**
 * Class responsible for creating speech bubbles
 */
H5P.JoubelSpeechBubble = (function ($) {

  var $currentSpeechBubble;
  var $currentContainer;
  var removeSpeechBubbleTimeout;

  var DEFAULT_MAX_WIDTH = 400;

  var iDevice = navigator.userAgent.match(/iPod|iPhone|iPad/g) ? true : false;

  /**
   * Creates a new speech bubble
   *
   * @param {H5P.jQuery} $container The speaking object
   * @param {string} text The text to display
   * @param {number} maxWidth The maximum width of the bubble
   * @return {H5P.JoubelSpeechBubble}
   */
  function JoubelSpeechBubble($container, text, maxWidth) {
    maxWidth = maxWidth || DEFAULT_MAX_WIDTH;
    $currentContainer = $container;

    this.isCurrent = function ($tip) {
      return $tip === $currentContainer;
    };

    this.remove = function () {
      remove();
    };

    var fadeOutSpeechBubble = function ($speechBubble) {
      if (!$speechBubble) {
        return;
      }

      // Stop removing bubble
      clearTimeout(removeSpeechBubbleTimeout);

      $speechBubble.removeClass('show');
      setTimeout(function () {
        if ($speechBubble) {
          $speechBubble.remove();
          $speechBubble = undefined;
        }
      }, 500);
    };

    if ($currentSpeechBubble !== undefined) {
      remove();
    }

    var $h5pContainer = $container.closest('.h5p-frame');

    // Check closest h5p frame first, then check for container in case there is no frame.
    if (!$h5pContainer.length) {
      $h5pContainer = $container.closest('.h5p-container');
    }

    // Make sure we fade out old speech bubble
    fadeOutSpeechBubble($currentSpeechBubble);

    // Create bubble
    var $tail = $('<div class="joubel-speech-bubble-tail"></div>');
    var $innerTail = $('<div class="joubel-speech-bubble-inner-tail"></div>');
    var $innerBubble = $(
      '<div class="joubel-speech-bubble-inner">' +
        '<div class="joubel-speech-bubble-text">' + text + '</div>' +
      '</div>'
    ).prepend($innerTail);

    $currentSpeechBubble = $(
      '<div class="joubel-speech-bubble" aria-live="assertive">'
    ).append([$tail, $innerBubble])
      .appendTo($h5pContainer);

    // Show speech bubble with transition
    setTimeout(function () {
      $currentSpeechBubble.addClass('show');
    }, 0);

    // Calculate offset between the button and the h5p frame
    var offset = getOffsetBetween($h5pContainer, $container);

    var direction = (offset.bottom > offset.top ? 'bottom' : 'top');
    var tipWidth = offset.outerWidth * 0.9; // Var needs to be renamed to make sense
    var bubbleWidth = tipWidth > maxWidth ? maxWidth : tipWidth;

    var bubblePosition = getBubblePosition(bubbleWidth, offset);
    var tailPosition = getTailPosition(bubbleWidth, bubblePosition, offset, $container.width());
    // Need to set font-size, since element is appended to body.
    // Using same font-size as parent. In that way it will grow accordingly
    // when resizing
    var fontSize = 16;//parseFloat($parent.css('font-size'));

    // Set width and position of speech bubble
    $currentSpeechBubble.css(bubbleCSS(
      direction,
      bubbleWidth,
      bubblePosition,
      fontSize
    ));

    var preparedTailCSS = tailCSS(direction, tailPosition);
    $tail.css(preparedTailCSS);
    $innerTail.css(preparedTailCSS);

    // Handle click to close
    H5P.$body.on('mousedown.speechBubble', handleOutsideClick);

    // Handle clicks when inside IV which blocks bubbling.
    $container.parents('.h5p-dialog')
      .on('mousedown.speechBubble', handleOutsideClick);

    if (iDevice) {
      H5P.$body.css('cursor', 'pointer');
    }

    return this;
  }

  // Remove speechbubble if it belongs to a dom element that is about to be hidden
  H5P.externalDispatcher.on('domHidden', function (event) {
    if ($currentSpeechBubble !== undefined && event.data.$dom.find($currentContainer).length !== 0) {
      remove();
    }
  });

  /**
   * Static function for removing the speechbubble
   */
  var remove = function() {
    H5P.$body.off('mousedown.speechBubble');
    $currentContainer.parents('.h5p-dialog').off('mousedown.speechBubble');
    if (iDevice) {
      H5P.$body.css('cursor', '');
    }
    if ($currentSpeechBubble !== undefined) {
      // Apply transition, then remove speech bubble
      $currentSpeechBubble.removeClass('show');

      // Make sure we remove any old timeout before reassignment
      clearTimeout(removeSpeechBubbleTimeout);
      removeSpeechBubbleTimeout = setTimeout(function () {
        $currentSpeechBubble.remove();
        $currentSpeechBubble = undefined;
      }, 500);
    }
    // Don't return false here. If the user e.g. clicks a button when the bubble is visible,
    // we want the bubble to disapear AND the button to receive the event
  };

  /**
   * Remove the speech bubble with a fade
   *
   * @param {jQuery} $speechBubble Speech bubble element
   */
  function fadeOutSpeechBubble($speechBubble) {
    if (!$speechBubble) {return;}

    // Stop removing bubble
    clearTimeout(removeSpeechBubbleTimeout);

    $speechBubble.removeClass('show');
    setTimeout(function () {
      if ($speechBubble) {
        $speechBubble.remove();
        $speechBubble = undefined;
      }
    }, 500);
  }

  /**
   * Remove the speech bubble and container reference
   */
  function handleOutsideClick (event) {
    if (event.target === $currentContainer[0]) {
      return; // Button clicks are not outside clicks
    }

    remove();
    // There is no current container when a container isn't clicked
    $currentContainer = undefined;
  }

  /**
   * Calculate position for speech bubble
   *
   * @param {number} bubbleWidth The width of the speech bubble
   * @param {object} offset
   * @return {object} Return position for the speech bubble
   */
  function getBubblePosition(bubbleWidth, offset) {
    var bubblePosition = {};

    var tailOffset = 9;
    var widthOffset = bubbleWidth / 2;

    // Calculate top position
    bubblePosition.top = offset.top + offset.innerHeight;

    // Calculate bottom position
    bubblePosition.bottom = offset.bottom + offset.innerHeight + tailOffset;

    // Calculate left position
    if (offset.left < widthOffset) {
      bubblePosition.left = 3;
    }
    else if ((offset.left + widthOffset) > offset.outerWidth) {
      bubblePosition.left = offset.outerWidth - bubbleWidth - 3;
    }
    else {
      bubblePosition.left = offset.left - widthOffset + (offset.innerWidth / 2);
    }

    return bubblePosition;
  }

  /**
   * Calculate position for speech bubble tail
   *
   * @param {number} bubbleWidth The width of the speech bubble
   * @param {object} bubblePosition Speech bubble position
   * @param {object} offset
   * @param {number} iconWidth The width of the tip icon
   * @return {object} Return position for the tail
   */
  function getTailPosition(bubbleWidth, bubblePosition, offset, iconWidth) {
    var tailPosition = {};
    // Magic numbers. Tuned by hand so that the tail fits visually within
    // the bounds of the speech bubble.
    var leftBoundary = 9;
    var rightBoundary = bubbleWidth - 20;

    tailPosition.left = offset.left - bubblePosition.left + (iconWidth / 2) - 6;
    if (tailPosition.left < leftBoundary) {
      tailPosition.left = leftBoundary;
    }
    if (tailPosition.left > rightBoundary) {
      tailPosition.left = rightBoundary;
    }

    tailPosition.top = -6;
    tailPosition.bottom = -6;

    return tailPosition;
  }

  /**
   * Return bubble CSS for the desired growth direction
   *
   * @param {string} direction The direction the speech bubble will grow
   * @param {number} width The width of the speech bubble
   * @param {object} position Speech bubble position
   * @param {number} fontSize The size of the bubbles font
   * @return {object} Return CSS
   */
  function bubbleCSS(direction, width, position, fontSize) {
    if (direction === 'top') {
      return {
        width: width + 'px',
        bottom: position.bottom + 'px',
        left: position.left + 'px',
        fontSize: fontSize + 'px'
      };
    }
    else {
      return {
        width: width + 'px',
        top: position.top + 'px',
        left: position.left + 'px',
        fontSize: fontSize + 'px'
      };
    }
  }

  /**
   * Return tail CSS for the desired growth direction
   *
   * @param {string} direction The direction the speech bubble will grow
   * @param {object} position Tail position
   * @return {object} Return CSS
   */
  function tailCSS(direction, position) {
    if (direction === 'top') {
      return {
        bottom: position.bottom + 'px',
        left: position.left + 'px'
      };
    }
    else {
      return {
        top: position.top + 'px',
        left: position.left + 'px'
      };
    }
  }

  /**
   * Calculates the offset between an element inside a container and the
   * container. Only works if all the edges of the inner element is inside the
   * outer element.
   * Width/height of the elements is included as a convenience.
   *
   * @param {H5P.jQuery} $outer
   * @param {H5P.jQuery} $inner
   * @return {object} Position offset
   */
  function getOffsetBetween($outer, $inner) {
    var outer = $outer[0].getBoundingClientRect();
    var inner = $inner[0].getBoundingClientRect();

    return {
      top: inner.top - outer.top,
      right: outer.right - inner.right,
      bottom: outer.bottom - inner.bottom,
      left: inner.left - outer.left,
      innerWidth: inner.width,
      innerHeight: inner.height,
      outerWidth: outer.width,
      outerHeight: outer.height
    };
  }

  return JoubelSpeechBubble;
})(H5P.jQuery);
;
var H5P = H5P || {};

H5P.JoubelThrobber = (function ($) {

  /**
   * Creates a new tip
   */
  function JoubelThrobber() {

    // h5p-throbber css is described in core
    var $throbber = $('<div/>', {
      'class': 'h5p-throbber'
    });

    return $throbber;
  }

  return JoubelThrobber;
}(H5P.jQuery));
;
var H5P = H5P || {};

H5P.JoubelTip = (function ($) {

  /**
   * Creates a new tip
   *
   * @param {string} text The text to display in the popup
   * @param {object} params Additional parameters
   * @param {string} [params.tipLabel] Tip label
   */
  function JoubelTip(text, params) {
    var speechBubble;

    params = $.extend({
      showSpeechBubble: true,
      helpIcon: false
    }, params);

    var parsedTitle = text;
    if ($.parseHTML($.trim(text)).length) {
      parsedTitle = $.parseHTML($.trim(text))[0].textContent;
    }

    var $tip = $('<div/>', {
      class: 'joubel-tip-container' + (params.showSpeechBubble ? '' : ' be-quiet'),
      title: parsedTitle,
      role: 'button',
      tabindex: 0,
      click: function () {
        toggleSpeechBubble();

        return false;
      },
      keydown: function (e) {
        // Space
        if (e.which === 32) {
          toggleSpeechBubble();
          e.preventDefault();
        }
        else {
          toggleSpeechBubble(true);
        }
      }
    }).append($('<div/>', {
      'class': 'joubel-tip-icon' + (params.helpIcon ? ' help-icon': '')
    }));

    /**
     * Add or remove a speech bubble
     * @private
     * @param {boolean} [close] Forces tip close
     * @return {boolean}
     */
    function toggleSpeechBubble(close) {
      if (speechBubble !== undefined && speechBubble.isCurrent($tip)) {
        speechBubble.remove();
        speechBubble = undefined;
      }
      else if (!close && params.showSpeechBubble) {
        speechBubble = H5P.JoubelSpeechBubble($tip, text);
      }
    }

    return $tip;
  }

  return JoubelTip;
})(H5P.jQuery);
;
var H5P = H5P || {};

H5P.JoubelSlider = (function ($) {

  /**
   * Creates a new Slider
   *
   * @param {object} [params] Additional parameters
   */
  function JoubelSlider(params) {
    H5P.EventDispatcher.call(this);
    var self = this;

    this.$slider = $('<div>', $.extend({
      'class': 'h5p-joubel-ui-slider'
    }, params));

    this.$slides = [];
    this.currentIndex = 0;
    this.numSlides = 0;
  }
  JoubelSlider.prototype = Object.create(H5P.EventDispatcher.prototype);
  JoubelSlider.prototype.constructor = JoubelSlider;

  JoubelSlider.prototype.addSlide = function ($content) {
    $content.addClass('h5p-joubel-ui-slide').css({
      'left': (this.numSlides*100) + '%'
    });
    this.$slider.append($content);
    this.$slides.push($content);

    this.numSlides++;

    if(this.numSlides === 1) {
      $content.addClass('current');
    }
  };

  JoubelSlider.prototype.attach = function ($container) {
    $container.append(this.$slider);
  };

  JoubelSlider.prototype.move = function (index) {
    var self = this;

    if(index === 0) {
      self.trigger('first-slide');
    }
    if(index+1 === self.numSlides) {
      self.trigger('last-slide');
    }
    self.trigger('move');

    var $previousSlide = self.$slides[this.currentIndex];
    H5P.Transition.onTransitionEnd(this.$slider, function () {
      $previousSlide.removeClass('current');
      self.trigger('moved');
    });
    this.$slides[index].addClass('current');

    var translateX = 'translateX(' + (-index*100) + '%)';
    this.$slider.css({
      '-webkit-transform': translateX,
      '-moz-transform': translateX,
      '-ms-transform': translateX,
      'transform': translateX
    });

    this.currentIndex = index;
  };

  JoubelSlider.prototype.remove = function () {
    this.$slider.remove();
  };

  JoubelSlider.prototype.next = function () {
    if(this.currentIndex+1 >= this.numSlides) {
      return;
    }

    this.move(this.currentIndex+1);
  };

  JoubelSlider.prototype.previous = function () {
    this.move(this.currentIndex-1);
  };

  JoubelSlider.prototype.first = function () {
    this.move(0);
  };

  JoubelSlider.prototype.last = function () {
    this.move(this.numSlides-1);
  };

  return JoubelSlider;
})(H5P.jQuery);
;
var H5P = H5P || {};

/**
 * @module
 */
H5P.JoubelScoreBar = (function ($) {

  /**
   * Creates a score bar
   * @class H5P.JoubelScoreBar
   * @param {number=} maxScore  Maximum score
   * @param {string} [label] Makes it easier for readspeakers to identify the scorebar
   */
  function JoubelScoreBar(maxScore, label) {
    var self = this;

    self.maxScore = maxScore;
    self.score = 0;

    /**
     * @method hasFullScore
     * @private
     * @return {Boolean} true if full score, else false
     */
    var hasFullScore = function () {
      return self.score === self.maxScore;
    };

    /**
     * @function appendTo
     * @memberOf H5P.JoubelScoreBar#
     * @param {H5P.jQuery}  $wrapper  Dom container
     */
    self.appendTo = function ($wrapper) {
      self.$scoreBar.appendTo($wrapper);
    };

    /**
     * Creates the html for this widget
     *
     * @method createHtml
     * @private
     */
    var createHtml = function () {
      // Container div
      self.$scoreBar = $('<div>', {
        'class': 'h5p-joubelui-score-bar',
        'role': 'progressbar',
        'aria-valuenow': 0,
        'aria-valuemin': 0,
        'aria-valuemax': self.maxScore
      });
      if (label) {
        self.$scoreBar.attr('aria-label', label + '.');
      }

      // The progress bar wrapper
      self.$progressWrapper = $('<div>', {
        'class': 'h5p-joubelui-score-bar-progress-wrapper'
      }).appendTo(self.$scoreBar);

      self.$progress = $('<div>', {
        'class': 'h5p-joubelui-score-bar-progress'
      }).appendTo(self.$progressWrapper);

      // The star
      self.$endWrapper = $('<div>', {
        'class': 'h5p-joubelui-score-bar-end'
      }).appendTo(self.$scoreBar);

      // The default star
      self.$defaultStar = $('<span>', {
        'class': 'h5p-joubelui-score-bar-default-star'
      }).appendTo(self.$endWrapper);

      // The full score star
      self.$fullScoreStar = $('<span>', {
        'class': 'h5p-joubelui-score-bar-full-score-star'
      }).appendTo(self.$endWrapper);
    };

    /**
     * Set the current score
     * @method setScore
     * @memberOf H5P.JoubelScoreBar#
     * @param  {number} score
     */
    self.setScore = function (score) {
      // Do nothing if score hasn't changed
      if (score === self.score) {
        return;
      }
      self.score = score > self.maxScore ? self.maxScore : score;
      self.updateVisuals();
    };

    /**
     * Increment score
     * @method incrementScore
     * @memberOf H5P.JoubelScoreBar#
     * @param  {number=}        incrementBy Optional parameter, defaults to 1
     */
    self.incrementScore = function (incrementBy) {
      self.setScore(self.score + (incrementBy || 1));
    };

    /**
     * Set the max score
     * @method setMaxScore
     * @memberOf H5P.JoubelScoreBar#
     * @param  {number}    maxScore The max score
     */
    self.setMaxScore = function (maxScore) {
      self.maxScore = maxScore;
    };

    /**
     * Updates the progressbar visuals
     * @memberOf H5P.JoubelScoreBar#
     * @method updateVisuals
     */
    self.updateVisuals = function () {
      var fullscore = hasFullScore();
      self.$scoreBar.attr('aria-valuenow', self.score);

      setTimeout(function () {
        self.$progress.addClass('animate');
        self.$progress.css({
          width: (fullscore ? '102' : (self.maxScore - 1 !== 0 ? (self.score * 100 / (self.maxScore - 1)) : 0)) + '%'
        });
        H5P.Transition.sequence([
          {
            $element: self.$progress,
            timeout: 600,
            end: function () {
              self.$progress.removeClass('animate');
              self.$scoreBar.toggleClass('full-score', fullscore);
              if (fullscore) {
                self.$fullScoreStar.addClass('animate-background');
              }
            },
            break: !fullscore
          },
          {
            $element: self.$fullScoreStar,
            timeout: 400,
            end: function () {
              self.$fullScoreStar.addClass('animate-star show-star');
            }
          },
          {
            $element: self.$fullScoreStar,
            end: function () {
              self.$fullScoreStar.removeClass('animate-star');
              self.$fullScoreStar.addClass('animate-star-blink');
            }
          }
        ]);
      }, 300);
    };

    /**
     * Removes all classes
     * @method reset
     */
    self.reset = function () {
      self.$fullScoreStar.removeClass('animate-star animate-star-blink show-star animate-background');
      self.$scoreBar.removeClass('full-score');
    };

    createHtml();
  }

  return JoubelScoreBar;
})(H5P.jQuery);
;
var H5P = H5P || {};

H5P.JoubelProgressbar = (function ($) {

  /**
   * Joubel progressbar class
   * @method JoubelProgressbar
   * @constructor
   * @param  {number}          steps Number of steps
   * @param {Object} [options] Additional options
   * @param {boolean} [options.disableAria] Disable readspeaker assistance
   * @param {string} [options.progressText] A progress text for describing
   *  current progress out of total progress for readspeakers.
   *  e.g. "Slide :num of :total"
   */
  function JoubelProgressbar(steps, options) {
    H5P.EventDispatcher.call(this);
    var self = this;
    this.options = $.extend({
      progressText: 'Slide :num of :total'
    }, options);
    this.currentStep = 0;
    this.steps = steps;

    this.$progressbar = $('<div>', {
      'class': 'h5p-joubelui-progressbar',
      on: {
        click: function () {
          self.toggleTooltip();
          return false;
        },
        mouseenter: function () {
          self.showTooltip();
        },
        mouseleave: function () {
          setTimeout(function () {
            self.hideTooltip();
          }, 1500)
        }
      }
    });
    this.$background = $('<div>', {
      'class': 'h5p-joubelui-progressbar-background'
    }).appendTo(this.$progressbar);

    $('body').click(function () {
      self.toggleTooltip(true);
    });
  }

  JoubelProgressbar.prototype = Object.create(H5P.EventDispatcher.prototype);
  JoubelProgressbar.prototype.constructor = JoubelProgressbar;

  /**
   * Display tooltip
   * @method showTooltip
   */
  JoubelProgressbar.prototype.showTooltip = function () {
    var self = this;

    if (this.currentStep === 0 || this.tooltip !== undefined) {
      return;
    }

    var parentWidth = self.$progressbar.offset().left + self.$progressbar.width();

    this.tooltip = new H5P.Drop({
      target: this.$background.get(0),
      content: this.currentStep + '/' + this.steps,
      classes: 'drop-theme-arrows-bounce h5p-joubelui-drop',
      position: 'top right',
      openOn: 'always',
      tetherOptions: {
        attachment: 'bottom center',
        targetAttachment: 'top right'
      }
    });
    this.tooltip.on('open', function () {
      var $drop = $(self.tooltip.drop);
      var left = $drop.position().left;
      var dropWidth = $drop.width();

      // Need to handle drops getting outside of the progressbar:
      if (left < 0) {
        $drop.css({marginLeft: (-left) + 'px'});
      }
      else if (left + dropWidth > parentWidth) {
        $drop.css({marginLeft: (parentWidth - (left + dropWidth)) + 'px'});
      }
    });
  };

  JoubelProgressbar.prototype.updateAria = function () {
    var self = this;
    if (this.options.disableAria) {
      return;
    }

    if (!this.$currentStatus) {
      this.$currentStatus = $('<div>', {
        'class': 'h5p-joubelui-progressbar-slide-status-text',
        'aria-live': 'assertive'
      }).appendTo(this.$progressbar);
    }
    var interpolatedProgressText = self.options.progressText
      .replace(':num', self.currentStep)
      .replace(':total', self.steps);
    this.$currentStatus.html(interpolatedProgressText);
  };

  /**
   * Hides tooltip
   * @method hideTooltip
   */
  JoubelProgressbar.prototype.hideTooltip = function () {
    if (this.tooltip !== undefined) {
      this.tooltip.remove();
      this.tooltip.destroy();
      this.tooltip = undefined;
    }
  };

  /**
   * Toggles tooltip-visibility
   * @method toggleTooltip
   * @param  {boolean} [closeOnly] Don't show, only close if open
   */
  JoubelProgressbar.prototype.toggleTooltip = function (closeOnly) {
    if (this.tooltip === undefined && !closeOnly) {
      this.showTooltip();
    }
    else if (this.tooltip !== undefined) {
      this.hideTooltip();
    }
  };

  /**
   * Appends to a container
   * @method appendTo
   * @param  {H5P.jquery} $container
   */
  JoubelProgressbar.prototype.appendTo = function ($container) {
    this.$progressbar.appendTo($container);
  };

  /**
   * Update progress
   * @method setProgress
   * @param  {number}    step
   */
  JoubelProgressbar.prototype.setProgress = function (step) {
    // Check for valid value:
    if (step > this.steps || step < 0) {
      return;
    }
    this.currentStep = step;
    this.$background.css({
      width: ((this.currentStep/this.steps)*100) + '%'
    });

    this.updateAria();
  };

  /**
   * Increment progress with 1
   * @method next
   */
  JoubelProgressbar.prototype.next = function () {
    this.setProgress(this.currentStep+1);
  };

  /**
   * Reset progressbar
   * @method reset
   */
  JoubelProgressbar.prototype.reset = function () {
    this.setProgress(0);
  };

  /**
   * Check if last step is reached
   * @method isLastStep
   * @return {Boolean}
   */
  JoubelProgressbar.prototype.isLastStep = function () {
    return this.steps === this.currentStep;
  };

  return JoubelProgressbar;
})(H5P.jQuery);
;
var H5P = H5P || {};

/**
 * H5P Joubel UI library.
 *
 * This is a utility library, which does not implement attach. I.e, it has to bee actively used by
 * other libraries
 * @module
 */
H5P.JoubelUI = (function ($) {

  /**
   * The internal object to return
   * @class H5P.JoubelUI
   * @static
   */
  function JoubelUI() {}

  /* Public static functions */

  /**
   * Create a tip icon
   * @method H5P.JoubelUI.createTip
   * @param  {string}  text   The textual tip
   * @param  {Object}  params Parameters
   * @return {H5P.JoubelTip}
   */
  JoubelUI.createTip = function (text, params) {
    return new H5P.JoubelTip(text, params);
  };

  /**
   * Create message dialog
   * @method H5P.JoubelUI.createMessageDialog
   * @param  {H5P.jQuery}               $container The dom container
   * @param  {string}                   message    The message
   * @return {H5P.JoubelMessageDialog}
   */
  JoubelUI.createMessageDialog = function ($container, message) {
    return new H5P.JoubelMessageDialog($container, message);
  };

  /**
   * Create help text dialog
   * @method H5P.JoubelUI.createHelpTextDialog
   * @param  {string}             header  The textual header
   * @param  {string}             message The textual message
   * @return {H5P.JoubelHelpTextDialog}
   */
  JoubelUI.createHelpTextDialog = function (header, message) {
    return new H5P.JoubelHelpTextDialog(header, message);
  };

  /**
   * Create progress circle
   * @method H5P.JoubelUI.createProgressCircle
   * @param  {number}             number          The progress (0 to 100)
   * @param  {string}             progressColor   The progress color in hex value
   * @param  {string}             fillColor       The fill color in hex value
   * @param  {string}             backgroundColor The background color in hex value
   * @return {H5P.JoubelProgressCircle}
   */
  JoubelUI.createProgressCircle = function (number, progressColor, fillColor, backgroundColor) {
    return new H5P.JoubelProgressCircle(number, progressColor, fillColor, backgroundColor);
  };

  /**
   * Create throbber for loading
   * @method H5P.JoubelUI.createThrobber
   * @return {H5P.JoubelThrobber}
   */
  JoubelUI.createThrobber = function () {
    return new H5P.JoubelThrobber();
  };

  /**
   * Create simple rounded button
   * @method H5P.JoubelUI.createSimpleRoundedButton
   * @param  {string}                  text The button label
   * @return {H5P.SimpleRoundedButton}
   */
  JoubelUI.createSimpleRoundedButton = function (text) {
    return new H5P.SimpleRoundedButton(text);
  };

  /**
   * Create Slider
   * @method H5P.JoubelUI.createSlider
   * @param  {Object} [params] Parameters
   * @return {H5P.JoubelSlider}
   */
  JoubelUI.createSlider = function (params) {
    return new H5P.JoubelSlider(params);
  };

  /**
   * Create Score Bar
   * @method H5P.JoubelUI.createScoreBar
   * @param  {number=}       maxScore The maximum score
   * @param {string} [label] Makes it easier for readspeakers to identify the scorebar
   * @return {H5P.JoubelScoreBar}
   */
  JoubelUI.createScoreBar = function (maxScore, label) {
    return new H5P.JoubelScoreBar(maxScore, label);
  };

  /**
   * Create Progressbar
   * @method H5P.JoubelUI.createProgressbar
   * @param  {number=}       numSteps The total numer of steps
   * @param {Object} [options] Additional options
   * @param {boolean} [options.disableAria] Disable readspeaker assistance
   * @param {string} [options.progressText] A progress text for describing
   *  current progress out of total progress for readspeakers.
   *  e.g. "Slide :num of :total"
   * @return {H5P.JoubelProgressbar}
   */
  JoubelUI.createProgressbar = function (numSteps, options) {
    return new H5P.JoubelProgressbar(numSteps, options);
  };

  /**
   * Create standard Joubel button
   *
   * @method H5P.JoubelUI.createButton
   * @param {object} params
   *  May hold any properties allowed by jQuery. If href is set, an A tag
   *  is used, if not a button tag is used.
   * @return {H5P.jQuery} The jquery element created
   */
  JoubelUI.createButton = function(params) {
    var type = 'button';
    if (params.href) {
      type = 'a';
    }
    else {
      params.type = 'button';
    }
    if (params.class) {
      params.class += ' h5p-joubelui-button';
    }
    else {
      params.class = 'h5p-joubelui-button';
    }
    return $('<' + type + '/>', params);
  };

  return JoubelUI;
})(H5P.jQuery);
;
H5P.Question = (function ($, EventDispatcher, JoubelUI) {

  /**
   * Extending this class make it alot easier to create tasks for other
   * content types.
   *
   * @class H5P.Question
   * @extends H5P.EventDispatcher
   * @param {string} type
   */
  function Question(type) {
    var self = this;

    // Inheritance
    EventDispatcher.call(self);

    // Register default section order
    self.order = ['video', 'image', 'introduction', 'content', 'feedback', 'buttons', 'read'];

    // Keep track of registered sections
    var sections = {};

    // Buttons
    var buttons = {};
    var buttonOrder = [];

    // Wrapper when attached
    var $wrapper;

    // ScoreBar
    var scoreBar;

    // Keep track of the feedback's visual status.
    var showFeedback;

    // Keep track of which buttons are scheduled for hiding.
    var buttonsToHide = [];

    // Keep track of which buttons are scheduled for showing.
    var buttonsToShow = [];

    // Keep track of the hiding and showing of buttons.
    var toggleButtonsTimer;
    var toggleButtonsTransitionTimer;
    var buttonTruncationTimer;

    // Keeps track of initialization of question
    var initialized = false;

    /**
     * @type {Object} behaviour Behaviour of Question
     * @property {Boolean} behaviour.disableFeedback Set to true to disable feedback section
     */
    var behaviour = {
      disableFeedback: false,
      disableReadSpeaker: false
    };

    // Keeps track of thumb state
    var imageThumb = true;

    // Keeps track of image transitions
    var imageTransitionTimer;

    // Keep track of whether sections is transitioning.
    var sectionsIsTransitioning = false;

    // Keep track of auto play state
    var disableAutoPlay = false;

    // Feedback transition timer
    var feedbackTransitionTimer;

    // Used when reading messages to the user
    var $read, readText;

    /**
     * Register section with given content.
     *
     * @private
     * @param {string} section ID of the section
     * @param {(string|H5P.jQuery)} [content]
     */
    var register = function (section, content) {
      sections[section] = {};
      var $e = sections[section].$element = $('<div/>', {
        'class': 'h5p-question-' + section,
      });
      if (content) {
        $e[content instanceof $ ? 'append' : 'html'](content);
      }
    };

    /**
     * Update registered section with content.
     *
     * @private
     * @param {string} section ID of the section
     * @param {(string|H5P.jQuery)} content
     */
    var update = function (section, content) {
      if (content instanceof $) {
        sections[section].$element.html('').append(content);
      }
      else {
        sections[section].$element.html(content);
      }
    };

    /**
     * Insert element with given ID into the DOM.
     *
     * @private
     * @param {array|Array|string[]} order
     * List with ordered element IDs
     * @param {string} id
     * ID of the element to be inserted
     * @param {Object} elements
     * Maps ID to the elements
     * @param {H5P.jQuery} $container
     * Parent container of the elements
     */
    var insert = function (order, id, elements, $container) {
      // Try to find an element id should be after
      for (var i = 0; i < order.length; i++) {
        if (order[i] === id) {
          // Found our pos
          while (i > 0 &&
          (elements[order[i - 1]] === undefined ||
          !elements[order[i - 1]].isVisible)) {
            i--;
          }
          if (i === 0) {
            // We are on top.
            elements[id].$element.prependTo($container);
          }
          else {
            // Add after element
            elements[id].$element.insertAfter(elements[order[i - 1]].$element);
          }
          elements[id].isVisible = true;
          break;
        }
      }
    };

    /**
     * Set element max height, used for animations.
     *
     * @param {H5P.jQuery} $element
     */
    var setElementHeight = function ($element) {
      if (!$element.is(':visible')) {
        // No animation
        $element.css('max-height', 'none');
        return;
      }

      // Get natural element height
      var $tmp = $element.clone()
        .css({
          'position': 'absolute',
          'max-height': 'none'
        }).appendTo($element.parent());

      // Apply height to element
      var h = Math.round($tmp.get(0).getBoundingClientRect().height);
      var fontSize = parseFloat($element.css('fontSize'));
      var relativeH = h / fontSize;
      $element.css('max-height', relativeH + 'em');
      $tmp.remove();

      if (h > 0 && sections.buttons && sections.buttons.$element === $element) {

        // Make sure buttons section is visible
        sections.buttons.$element.addClass('h5p-question-visible');

        // Resize buttons after resizing button section
        setTimeout(function () {
          resizeButtons();
        }, 150);
      }
      return h;
    };

    /**
     * Does the actual job of hiding the buttons scheduled for hiding.
     *
     * @private
     * @param {boolean} [relocateFocus] Find a new button to focus
     */
    var hideButtons = function (relocateFocus) {
      for (var i = 0; i < buttonsToHide.length; i++) {
        hideButton(buttonsToHide[i].id);
      }
      buttonsToHide = [];

      if (relocateFocus) {
        self.focusButton();
      }
    };

    /**
     * Does the actual hiding.
     * @private
     * @param {string} buttonId
     */
    var hideButton = function (buttonId) {
      // Using detach() vs hide() makes it harder to cheat.
      buttons[buttonId].$element.detach();
      buttons[buttonId].isVisible = false;
    };

    /**
     * Shows the buttons on the next tick. This is to avoid buttons flickering
     * If they're both added and removed on the same tick.
     *
     * @private
     */
    var toggleButtons = function () {

      // Clear transition timer, reevaluate if buttons will be detached
      clearTimeout(toggleButtonsTransitionTimer);

      // Show buttons
      for (var i = 0; i < buttonsToShow.length; i++) {
        insert(buttonOrder, buttonsToShow[i].id, buttons, sections.buttons.$element);
        buttons[buttonsToShow[i].id].isVisible = true;
      }
      buttonsToShow = [];

      // Hide buttons
      var numToHide = 0;
      var relocateFocus = false;
      for (var j = 0; j < buttonsToHide.length; j++) {
        var button = buttons[buttonsToHide[j].id];
        if (button.isVisible) {
          numToHide += 1;
        }
        if (button.$element.is(':focus')) {
          // Move focus to the first visible button.
          relocateFocus = true;
        }
      }

      if (sections.buttons && numToHide === sections.buttons.$element.children().length) {
        // All buttons are going to be hidden. Hide container using transition.
        sections.buttons.$element.removeClass('h5p-question-visible');
        sections.buttons.$element.css('max-height', '');
        sectionsIsTransitioning = true;

        // Wait for animations before detaching buttons
        toggleButtonsTransitionTimer = setTimeout(function () {
          hideButtons(relocateFocus);
          sectionsIsTransitioning = false;
        }, 150);
      }
      else {
        hideButtons(relocateFocus);

        // Show button section
        if (!sections.buttons.$element.is(':empty')) {
          sections.buttons.$element.addClass('h5p-question-visible');
          setElementHeight(sections.buttons.$element);

          // Trigger resize after animation
          toggleButtonsTransitionTimer = setTimeout(function () {
            self.trigger('resize');
          }, 150);
        }
      }

      // Resize buttons to fit container
      resizeButtons();

      toggleButtonsTimer = undefined;
    };

    /**
     * Allows for scaling of the question image.
     */
    var scaleImage = function () {
      var $imgSection = sections.image.$element;
      clearTimeout(imageTransitionTimer);

      // Add this here to avoid initial transition of the image making
      // content overflow. Alternatively we need to trigger a resize.
      $imgSection.addClass('animatable');

      if (imageThumb) {

        // Expand image
        $(this).attr('aria-expanded', true);
        $imgSection.addClass('h5p-question-image-fill-width');
        imageThumb = false;

        imageTransitionTimer = setTimeout(function () {
          self.trigger('resize');
        }, 600);
      }
      else {

        // Scale down image
        $(this).attr('aria-expanded', false);
        $imgSection.removeClass('h5p-question-image-fill-width');
        imageThumb = true;

        imageTransitionTimer = setTimeout(function () {
          self.trigger('resize');
        }, 600);
      }
    };

    /**
     * Get scrollable ancestor of element
     *
     * @private
     * @param {H5P.jQuery} $element
     * @param {Number} [currDepth=0] Current recursive calls to ancestor, stop at maxDepth
     * @param {Number} [maxDepth=5] Maximum depth for finding ancestor.
     * @returns {H5P.jQuery} Parent element that is scrollable
     */
    var findScrollableAncestor = function ($element, currDepth, maxDepth) {
      if (!currDepth) {
        currDepth = 0;
      }
      if (!maxDepth) {
        maxDepth = 5;
      }
      // Check validation of element or if we have reached document root
      if (!$element || !($element instanceof $) || document === $element.get(0) || currDepth >= maxDepth) {
        return;
      }

      if ($element.css('overflow-y') === 'auto') {
        return $element;
      }
      else {
        return findScrollableAncestor($element.parent(), currDepth + 1, maxDepth);
      }
    };

    /**
     * Scroll to bottom of Question.
     *
     * @private
     */
    var scrollToBottom = function () {
      if (!$wrapper || ($wrapper.hasClass('h5p-standalone') && !H5P.isFullscreen)) {
        return; // No scroll
      }

      var scrollableAncestor = findScrollableAncestor($wrapper);

      // Scroll to bottom of scrollable ancestor
      if (scrollableAncestor) {
        scrollableAncestor.animate({
          scrollTop: $wrapper.css('height')
        }, "slow");
      }
    };

    /**
     * Resize buttons to fit container width
     *
     * @private
     */
    var resizeButtons = function () {
      if (!buttons || !sections.buttons) {
        return;
      }

      // Clear button truncation timer if within a button truncation function
      if (buttonTruncationTimer) {
        clearTimeout(buttonTruncationTimer);
      }

      // Allow button section to attach before getting width
      buttonTruncationTimer = setTimeout(function () {

        // A static margin is added as buffer for smoother transitions
        var buttonsWidth = 0;
        for (var i in buttons) {
          var $element = buttons[i].$element;
          if (buttons[i].isVisible) {

            //Calculate exact button width
            var buttonInstanceWidth = $element.get(0).offsetWidth +
              parseFloat($element.css('margin-left')) +
              parseFloat($element.css('margin-right'));
            buttonsWidth += Math.ceil(buttonInstanceWidth) + 1;
          }
        }


        // Button section reduced by 1 pixel for cross-broswer consistency.
        var buttonSectionWidth = Math.floor(sections.buttons.$element.get(0).offsetWidth) - 1;

        // Remove button labels if width of buttons are too wide
        if (buttonsWidth >= buttonSectionWidth) {
          removeButtonLabels(buttonsWidth, buttonSectionWidth);
        }
        else {
          restoreButtonLabels(buttonsWidth, buttonSectionWidth);
        }
        buttonTruncationTimer = undefined;
      }, 0);
    };

    /**
     * Remove button labels until they use less than max width.
     *
     * @private
     * @param {Number} buttonsWidth Total width of all buttons
     * @param {Number} maxButtonsWidth Max width allowed for buttons
     */
    var removeButtonLabels = function (buttonsWidth, maxButtonsWidth) {
      // Reverse traversal
      for (var i = buttonOrder.length - 1; i >= 0; i--) {
        var buttonId = buttonOrder[i];
        if (!buttons[buttonId].isTruncated && buttons[buttonId].isVisible) {
          var $button = buttons[buttonId].$element;
          var $tmp = $button.clone()
            .css({
              'position': 'absolute',
              'white-space': 'nowrap',
              'max-width': 'none'
            })
            .addClass('truncated')
            .html('')
            .appendTo($button.parent());

          // Calculate new total width of buttons
          buttonsWidth = buttonsWidth - $button.outerWidth(true) + $tmp.outerWidth(true);

          // Remove label
          $button.html('');
          $button.addClass('truncated');
          buttons[buttonId].isTruncated = true;
          $tmp.remove();
          if (buttonsWidth < maxButtonsWidth) {
            // Buttons are small enough.
            return;
          }
        }
      }
    };

    /**
     * Restore button labels until it fills maximum possible width without exceeding the max width.
     *
     * @private
     * @param {Number} buttonsWidth Total width of all buttons
     * @param {Number} maxButtonsWidth Max width allowed for buttons
     */
    var restoreButtonLabels = function (buttonsWidth, maxButtonsWidth) {
      for (var i = 0; i < buttonOrder.length; i++) {
        var buttonId = buttonOrder[i];
        if (buttons[buttonId].isTruncated && buttons[buttonId].isVisible) {

          // Check if adding label exceeds allowed width
          var $button = buttons[buttonId].$element;
          var $tmp = $button.clone()
            .css({
              'position': 'absolute',
              'white-space': 'nowrap',
              'max-width': 'none'
            }).removeClass('truncated')
            .html(buttons[buttonId].text)
            .appendTo($button.parent());

          // Make sure clone was successfull
          if(!$button.length || !$tmp.length) {
            return;
          }

          var oldButtonSize = Math.floor($button.get(0).offsetWidth) - 1;
          var newButtonSize = Math.ceil($tmp.get(0).offsetWidth) + 1;

          // Calculate new total width of buttons with a static pixel for consistency cross-browser
          buttonsWidth = buttonsWidth - Math.floor(oldButtonSize) + Math.ceil(newButtonSize) + 1;

          $tmp.remove();
          if (buttonsWidth >= maxButtonsWidth) {
            return;
          }
          // Restore label
          $button.html(buttons[buttonId].text);
          $button.removeClass('truncated');
          buttons[buttonId].isTruncated = false;
        }
      }
    };

    /**
     * Helper function for finding index of keyValue in array
     *
     * @param {String} keyValue Value to be found
     * @param {String} key In key
     * @param {Array} array In array
     * @returns {number}
     */
    var existsInArray = function (keyValue, key, array) {
      var i;
      for (i = 0; i < array.length; i++) {
        if (array[i][key] === keyValue) {
          return i;
        }
      }
      return -1;
    };

    /**
     * Set behaviour for question.
     *
     * @param {Object} options An object containing behaviour that will be extended by Question
     */
    self.setBehaviour = function (options) {
      $.extend(behaviour, options);
    };

    /**
     * A video to display above the task.
     *
     * @param {object} params
     */
    self.setVideo = function (params) {
      sections.video = {
        $element: $('<div/>', {
          'class': 'h5p-question-video'
        })
      };

      if (disableAutoPlay) {
        params.params.autoplay = false;
      }

      // Never fit to wrapper
      params.params.fit = false;
      sections.video.instance = H5P.newRunnable(params, self.contentId, sections.video.$element, true);
      var fromVideo = false; // Hack to avoid never ending loop
      sections.video.instance.on('resize', function () {
        fromVideo = true;
        self.trigger('resize');
        fromVideo = false;
      });
      self.on('resize', function () {
        if (!fromVideo) {
          sections.video.instance.trigger('resize');
        }
      });

      return self;
    };

    /**
     * Will stop any playback going on in the task.
     */
    self.pause = function () {
      if (sections.video && sections.video.isVisible) {
        sections.video.instance.pause();
      }
    };

    /**
     * Start playback of video
     */
    self.play = function () {
      if (sections.video && sections.video.isVisible) {
        sections.video.instance.play();
      }
    };

    /**
     * Disable auto play, useful in editors.
     */
    self.disableAutoPlay = function () {
      disableAutoPlay = true;
    };

    /**
     * Add task image.
     *
     * @param {string} path Relative
     * @param {Object} [options] Options object
     * @param {string} [options.alt] Text representation
     * @param {Boolean} [options.disableImageZooming] Set as true to disable image zooming
     */
    self.setImage = function (path, options) {
      options = options ? options : {};
      sections.image = {};
      // Image container
      sections.image.$element = $('<div/>', {
        'class': 'h5p-question-image h5p-question-image-fill-width'
      });

      // Inner wrap
      var $imgWrap = $('<div/>', {
        'class': 'h5p-question-image-wrap',
        appendTo: sections.image.$element
      });

      // Image element
      var $img = $('<img/>', {
        src: H5P.getPath(path, self.contentId),
        alt: (options.alt === undefined ? '' : options.alt),
        on: {
          load: function () {
            self.trigger('imageLoaded', this);
            self.trigger('resize');
          }
        },
        appendTo: $imgWrap
      });

      // Disable image zooming
      if (options.disableImageZooming) {
        $img.css('maxHeight', 'none');

        // Make sure we are using the correct amount of width at all times
        var determineImgWidth = function () {

          // Remove margins if natural image width is bigger than section width
          var imageSectionWidth = sections.image.$element.get(0).getBoundingClientRect().width;

          // Do not transition, for instant measurements
          $imgWrap.css({
            '-webkit-transition': 'none',
            'transition': 'none'
          });

          // Margin as translateX on both sides of image.
          var diffX = 2 * ($imgWrap.get(0).getBoundingClientRect().left -
            sections.image.$element.get(0).getBoundingClientRect().left);

          if ($img.get(0).naturalWidth >= imageSectionWidth - diffX) {
            sections.image.$element.addClass('h5p-question-image-fill-width');
          }
          else { // Use margin for small res images
            sections.image.$element.removeClass('h5p-question-image-fill-width');
          }

          // Reset transition rules
          $imgWrap.css({
            '-webkit-transition': '',
            'transition': ''
          });
        };

        // Determine image width
        if ($img.is(':visible')) {
          determineImgWidth();
        }
        else {
          $img.load(function () {
            determineImgWidth();
          });
        }

        // Skip adding zoom functionality
        return;
      }

      var sizeDetermined = false;
      var determineSize = function () {

        if (sizeDetermined || !$img.is(':visible')) {
          return; // Try again next time.
        }

        $imgWrap.addClass('h5p-question-image-scalable')
          .attr('aria-expanded', false)
          .attr('role', 'button')
          .attr('tabIndex', '0')
          .on('click', function (event) {
            if (event.which === 1) {
              scaleImage.apply(this); // Left mouse button click
            }
          }).on('keypress', function (event) {
          if (event.which === 32) {
            scaleImage.apply(this); // Space bar pressed
          }
        });
        sections.image.$element.removeClass('h5p-question-image-fill-width');

        sizeDetermined  = true; // Prevent any futher events
      };

      self.on('resize', determineSize);

      return self;
    };

    /**
     * Add the introduction section.
     *
     * @param {(string|H5P.jQuery)} content
     */
    self.setIntroduction = function (content) {
      register('introduction', content);

      return self;
    };

    /**
     * Add the content section.
     *
     * @param {(string|H5P.jQuery)} content
     * @param {Object} [options]
     * @param {string} [options.class]
     */
    self.setContent = function (content, options) {
      register('content', content);

      if (options && options.class) {
        sections.content.$element.addClass(options.class);
      }

      return self;
    };

    /**
     * Force readspeaker to read text. Useful when you have to use
     * setTimeout for animations.
     */
    self.read = function (content) {
      if (!$read) {
        return; // Not ready yet
      }

      if (readText) {
        // Combine texts if called multiple times
        readText += (readText.substr(-1, 1) === '.' ? ' ' : '. ') + content
      }
      else {
        readText = content;
      }

      // Set text
      $read.html(readText);

      setTimeout(function () {
        // Stop combining when done reading
        readText = null;
        $read.html('');
      }, 100);
    };

    /**
     * Read feedback
     */
    self.readFeedback = function () {
      var invalidFeedback =
        behaviour.disableReadSpeaker ||
        !showFeedback ||
        !sections.feedback ||
        !sections.feedback.$element;

      if (invalidFeedback) {
        return;
      }

      var $feedbackText = $('.h5p-question-feedback-content-text', sections.feedback.$element);
      if ($feedbackText && $feedbackText.html() && $feedbackText.html().length) {
        self.read($feedbackText.html());
      }
    };

    /**
     * Set feedback message.
     * Setting the message to blank or undefined will hide it again.
     *
     * @param {string} content
     * @param {number} score The score
     * @param {number} maxScore The maximum score for this question
     * @param {string} [scoreBarLabel] Makes it easier for readspeakers to identify the scorebar
     * @param {string} [helpText] Help text that describes the score inside a tip icon
     */
    self.setFeedback = function (content, score, maxScore, scoreBarLabel, helpText) {

      // Feedback is disabled
      if (behaviour.disableFeedback) {
        return self;
      }
      clearTimeout(feedbackTransitionTimer);

      if (content) {
        var $feedback = $('<div>', {
          'class': 'h5p-question-feedback-container'
        });

        if (scoreBar === undefined) {
          scoreBar = JoubelUI.createScoreBar(maxScore, scoreBarLabel);
        }
        scoreBar.appendTo($feedback);
        scoreBar.setScore(score);
        var $feedbackContent = $('<div>', {
          'class': 'h5p-question-feedback-content'
        }).appendTo($feedback);

        // Feedback text
        $('<div>', {
          'class': 'h5p-question-feedback-content-text',
          'html': content
        }).appendTo($feedbackContent);

        if (helpText) {
          JoubelUI.createTip(helpText, {helpIcon: true})
            .appendTo($feedbackContent);
        }

        // Feedback for readspeakers
        if (!behaviour.disableReadSpeaker) {
          self.read(content);
        }

        showFeedback = true;
        if (sections.feedback) {
          // Update section
          update('feedback', $feedback);
        }
        else {
          // Create section
          register('feedback', $feedback);
          if (initialized && $wrapper) {
            insert(self.order, 'feedback', sections, $wrapper);
          }
        }

        // Show feedback section
        feedbackTransitionTimer = setTimeout(function () {
          sections.feedback.$element.addClass('h5p-question-visible');
          setElementHeight(sections.feedback.$element);
          sectionsIsTransitioning = true;

          // Scroll to bottom after showing feedback
          scrollToBottom();

          // Trigger resize after animation
          feedbackTransitionTimer = setTimeout(function () {
            sectionsIsTransitioning = false;
            self.trigger('resize');
          }, 150);
        }, 0);

      }
      else if (sections.feedback && showFeedback) {
        showFeedback = false;

        // Hide feedback section
        sections.feedback.$element.removeClass('h5p-question-visible');
        sections.feedback.$element.css('max-height', '');
        sectionsIsTransitioning = true;

        // Detach after transition
        feedbackTransitionTimer = setTimeout(function () {
          // Avoiding Transition.onTransitionEnd since it will register multiple events, and there's no way to cancel it if the transition changes back to "show" while the animation is happening.
          if (!showFeedback) {
            sections.feedback.$element.children().detach();

            // Trigger resize after animation
            self.trigger('resize');
          }
          sectionsIsTransitioning = false;
          scoreBar.setScore(0);
        }, 150);
      }

      return self;
    };

    /**
     * Set feedback content (no animation).
     *
     * @param {string} content
     * @param {boolean} [extendContent] True will extend content, instead of replacing it
     */
    self.updateFeedbackContent = function (content, extendContent) {
      if (sections.feedback && sections.feedback.$element) {

        if (extendContent) {
          content = $('.h5p-question-feedback-content', sections.feedback.$element).html() + ' ' + content;
        }

        // Update feedback content html
        $('.h5p-question-feedback-content', sections.feedback.$element).html(content);
      }

      return self;
    };

    /**
     * Checks to see if button is registered.
     *
     * @param {string} id
     * @returns {boolean}
     */
    self.hasButton = function (id) {
      return (buttons[id] !== undefined);
    };

    /**
     * @typedef {Object} ConfirmationDialog
     * @property {boolean} [enable] Must be true to show confirmation dialog
     * @property {Object} [instance] Instance that uses confirmation dialog
     * @property {jQuery} [$parentElement] Append to this element.
     * @property {Object} [l10n] Translatable fields
     * @property {string} [l10n.header] Header text
     * @property {string} [l10n.body] Body text
     * @property {string} [l10n.cancelLabel]
     * @property {string} [l10n.confirmLabel]
     */

    /**
     * Register buttons for the task.
     *
     * @param {string} id
     * @param {string} text label
     * @param {function} clicked
     * @param {boolean} [visible=true]
     * @param {Object} [options] Options for button
     * @param {Object} [extras] Extra options
     * @param {ConfirmationDialog} [extras.confirmationDialog] Confirmation dialog
     */
    self.addButton = function (id, text, clicked, visible, options, extras) {
      if (buttons[id]) {
        return self; // Already registered
      }

      if (sections.buttons === undefined)  {
        // We have buttons, register wrapper
        register('buttons');
        if (initialized) {
          insert(self.order, 'buttons', sections, $wrapper);
        }
      }

      extras = extras || {};
      extras.confirmationDialog = extras.confirmationDialog || {};
      options = options || {};

      var confirmationDialog =
        self.addConfirmationDialogToButton(extras.confirmationDialog, clicked);

      /**
       * Handle button clicks through both mouse and keyboard
       * @private
       */
      var handleButtonClick = function () {
        if (extras.confirmationDialog.enable && confirmationDialog) {
          // Show popups section if used
          if (!extras.confirmationDialog.$parentElement) {
            sections.popups.$element.removeClass('hidden');
          }
          confirmationDialog.show($e.position().top);
        }
        else {
          clicked();
        }
      };

      buttons[id] = {
        isTruncated: false,
        text: text
      };
      var $e = buttons[id].$element = JoubelUI.createButton($.extend({
        'class': 'h5p-question-' + id,
        html: text,
        on: {
          click: function (event) {
            handleButtonClick();
            if (options.href !== undefined) {
              event.preventDefault();
            }
          },
          keydown: function (event) {
            switch (event.which) {
              case 13: // Enter
              case 32: // Space
                handleButtonClick();
                event.preventDefault();
            }
          }
        }
      }, options));
      buttonOrder.push(id);

      if (visible === undefined || visible) {
        // Button should be visible
        $e.appendTo(sections.buttons.$element);
        buttons[id].isVisible = true;
        sections.buttons.$element.addClass('h5p-question-visible');
      }

      return self;
    };

    /**
     * Add confirmation dialog to button
     * @param {ConfirmationDialog} options
     *  A confirmation dialog that will be shown before click handler of button
     *  is triggered
     * @param {function} clicked
     *  Click handler of button
     * @return {H5P.ConfirmationDialog|undefined}
     *  Confirmation dialog if enabled
     */
    self.addConfirmationDialogToButton = function (options, clicked) {
      options = options || {};

      if (!options.enable) {
        return;
      }

      // Confirmation dialog
      var confirmationDialog = new H5P.ConfirmationDialog({
        instance: options.instance,
        headerText: options.l10n.header,
        dialogText: options.l10n.body,
        cancelText: options.l10n.cancelLabel,
        confirmText: options.l10n.confirmLabel
      });

      // Determine parent element
      if (options.$parentElement) {
        confirmationDialog.appendTo(options.$parentElement.get(0));
      }
      else {

        // Create popup section and append to that
        if (sections.popups === undefined) {
          register('popups');
          if (initialized) {
            insert(self.order, 'popups', sections, $wrapper);
          }
          sections.popups.$element.addClass('hidden');
          self.order.push('popups');
        }
        confirmationDialog.appendTo(sections.popups.$element.get(0));
      }

      // Add event listeners
      confirmationDialog.on('confirmed', function () {
        if (!options.$parentElement) {
          sections.popups.$element.addClass('hidden');
        }
        clicked();

        // Trigger to content type
        self.trigger('confirmed');
      });

      confirmationDialog.on('canceled', function () {
        if (!options.$parentElement) {
          sections.popups.$element.addClass('hidden');
        }
        // Trigger to content type
        self.trigger('canceled');
      });

      return confirmationDialog;
    };

    /**
     * Show registered button with given identifier.
     *
     * @param {string} id
     * @param {Number} [priority]
     */
    self.showButton = function (id, priority) {
      if (buttons[id] === undefined) {
        return self;
      }

      priority = priority || 0;

      // Skip if already being shown
      var indexToShow = existsInArray(id, 'id', buttonsToShow);
      if (indexToShow !== -1) {

        // Update priority
        if (buttonsToShow[indexToShow].priority < priority) {
          buttonsToShow[indexToShow].priority = priority;
        }

        return self;
      }

      // Check if button is going to be hidden on next tick
      var exists = existsInArray(id, 'id', buttonsToHide);
      if (exists !== -1) {

        // Skip hiding if higher priority
        if (buttonsToHide[exists].priority <= priority) {
          buttonsToHide.splice(exists, 1);
          buttonsToShow.push({id: id, priority: priority});
        }

      } // If button is not shown
      else if (!buttons[id].$element.is(':visible')) {

        // Show button on next tick
        buttonsToShow.push({id: id, priority: priority});
      }

      if (!toggleButtonsTimer) {
        toggleButtonsTimer = setTimeout(toggleButtons, 0);
      }

      return self;
    };

    /**
     * Hide registered button with given identifier.
     *
     * @param {string} id
     * @param {number} [priority]
     */
    self.hideButton = function (id, priority) {
      if (buttons[id] === undefined) {
        return self;
      }

      priority = priority || 0;

      // Skip if already being hidden
      var indexToHide = existsInArray(id, 'id', buttonsToHide);
      if (indexToHide !== -1) {

        // Update priority
        if (buttonsToHide[indexToHide].priority < priority) {
          buttonsToHide[indexToHide].priority = priority;
        }

        return self;
      }

      // Check if buttons is going to be shown on next tick
      var exists = existsInArray(id, 'id', buttonsToShow);
      if (exists !== -1) {

        // Skip showing if higher priority
        if (buttonsToShow[exists].priority <= priority) {
          buttonsToShow.splice(exists, 1);
          buttonsToHide.push({id: id, priority: priority});
        }
      }
      else if (!buttons[id].$element.is(':visible')) {

        // Make sure it is detached in case the container is hidden.
        hideButton(id);
      }
      else {

        // Hide button on next tick.
        buttonsToHide.push({id: id, priority: priority});
      }

      if (!toggleButtonsTimer) {
        toggleButtonsTimer = setTimeout(toggleButtons, 0);
      }

      return self;
    };

    /**
     * Set focus to the given button. If no button is given the first visible
     * button gets focused. This is useful if you lose focus.
     *
     * @param {string} [id]
     */
    self.focusButton = function (id) {
      if (id === undefined) {
        // Find first button that is visible.
        for (var i = 0; i < buttonOrder.length; i++) {
          if (buttons[buttonOrder[i]].isVisible) {
            // Give that button focus
            buttons[buttonOrder[i]].$element.focus();
            break;
          }
        }
      }
      else if (buttons[id].$element.is(':visible')) {
        // Set focus to requested button
        buttons[id].$element.focus();
      }

      return self;
    };

    /**
     * Toggle readspeaker functionality
     * @param {boolean} [disable] True to disable, false to enable.
     */
    self.toggleReadSpeaker = function (disable) {
      behaviour.disableReadSpeaker = disable || !behaviour.disableReadSpeaker;
    };

    /**
     * Set new element for section.
     *
     * @param {String} id
     * @param {H5P.jQuery} $element
     */
    self.insertSectionAtElement = function (id, $element) {
      if (sections[id] === undefined) {
        register(id);
      }
      sections[id].parent = $element;

      // Insert section if question is not initialized
      if (!initialized) {
        insert([id], id, sections, $element);
      }

      return self;
    };

    /**
     * Attach content to given container.
     *
     * @param {H5P.jQuery} $container
     */
    self.attach = function ($container) {
      if (self.isRoot()) {
        self.setActivityStarted();
      }

      // The first time we attach we also create our DOM elements.
      if ($wrapper === undefined) {
        if (self.registerDomElements !== undefined &&
           (self.registerDomElements instanceof Function ||
           typeof self.registerDomElements === 'function')) {

           // Give the question type a chance to register before attaching
          self.registerDomElements();
        }

        // Create section for reading messages
        $read = $('<div/>', {
          'aria-live': 'polite',
          'class': 'h5p-hidden-read'
        });
        register('read', $read);
        self.trigger('registerDomElements');
      }

      // Prepare container
      $wrapper = $container;
      $container.html('')
        .addClass('h5p-question h5p-' + type);

      // Add sections in given order
      var $sections = [];
      for (var i = 0; i < self.order.length; i++) {
        var section = self.order[i];
        if (sections[section]) {
          if (sections[section].parent) {
            // Section has a different parent
            sections[section].$element.appendTo(sections[section].parent);
          }
          else {
            $sections.push(sections[section].$element);
          }
          sections[section].isVisible = true;
        }
      }

      // Only append once to DOM for optimal performance
      $container.append($sections);

      // Let others react to dom changes
      self.trigger('domChanged', {
        '$target': $container,
        'library': self.libraryInfo.machineName,
        'contentId': self.contentId,
        'key': 'newLibrary'
      }, {'bubbles': true, 'external': true});

      // ??
      initialized = true;

      return self;
    };

    /**
     * Detach all sections from their parents
     */
    self.detachSections = function () {
      // Deinit Question
      initialized = false;

      // Detach sections
      for (var section in sections) {
        sections[section].$element.detach();
      }

      return self;
    };

    // Listen for resize
    self.on('resize', function () {
      // Allow elements to attach and set their height before resizing
      if (!sectionsIsTransitioning && sections.feedback && showFeedback) {
        // Resize feedback to fit
        setElementHeight(sections.feedback.$element);
      }

      resizeButtons();
    });
  }

  // Inheritance
  Question.prototype = Object.create(EventDispatcher.prototype);
  Question.prototype.constructor = Question;

  return Question;
})(H5P.jQuery, H5P.EventDispatcher, H5P.JoubelUI);
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path+(match.test(path)?"":this.ext)};EJS.Scanner=function(source,left,right){extend(this,{left_delimiter:left+"%",right_delimiter:"%"+right,double_left:left+"%%",double_right:"%%"+right,left_equal:left+"%=",left_comment:left+"%#"});this.SplitRegexp=left=="["?/(\[%%)|(%%\])|(\[%=)|(\[%#)|(\[%)|(%\]\n)|(%\])|(\n)/:new RegExp("("+this.double_left+")|(%%"+this.double_right+")|("+this.left_equal+")|("+this.left_comment+")|("+this.left_delimiter+")|("+this.right_delimiter+"\n)|("+this.right_delimiter+")|(\n)");this.source=source;this.stag=null;this.lines=0};EJS.Scanner.to_text=function(input){if(input==null||input===undefined){return""}if(input instanceof Date){return input.toDateString()}if(input.toString){return input.toString()}return""};EJS.Scanner.prototype={scan:function(block){scanline=this.scanline;regex=this.SplitRegexp;if(!this.source==""){var source_split=rsplit(this.source,/\n/);for(var i=0;i<source_split.length;i++){var item=source_split[i];this.scanline(item,regex,block)}}},scanline:function(line,regex,block){this.lines++;var line_split=rsplit(line,regex);for(var i=0;i<line_split.length;i++){var token=line_split[i];if(token!=null){try{block(token,this)}catch(e){throw {type:"EJS.Scanner",line:this.lines}}}}}};EJS.Buffer=function(pre_cmd,post_cmd){this.line=new Array();this.script="";this.pre_cmd=pre_cmd;this.post_cmd=post_cmd;for(var i=0;i<this.pre_cmd.length;i++){this.push(pre_cmd[i])}};EJS.Buffer.prototype={push:function(cmd){this.line.push(cmd)},cr:function(){this.script=this.script+this.line.join("; ");this.line=new Array();this.script=this.script+"\n"},close:function(){if(this.line.length>0){for(var i=0;i<this.post_cmd.length;i++){this.push(pre_cmd[i])}this.script=this.script+this.line.join("; ");line=null}}};EJS.Compiler=function(source,left){this.pre_cmd=["var ___ViewO = [];"];this.post_cmd=new Array();this.source=" ";if(source!=null){if(typeof source=="string"){source=source.replace(/\r\n/g,"\n");source=source.replace(/\r/g,"\n");this.source=source}else{if(source.innerHTML){this.source=source.innerHTML}}if(typeof this.source!="string"){this.source=""}}left=left||"<";var right=">";switch(left){case"[":right="]";break;case"<":break;default:throw left+" is not a supported deliminator";break}this.scanner=new EJS.Scanner(this.source,left,right);this.out=""};EJS.Compiler.prototype={compile:function(options,name){options=options||{};this.out="";var put_cmd="___ViewO.push(";var insert_cmd=put_cmd;var buff=new EJS.Buffer(this.pre_cmd,this.post_cmd);var content="";var clean=function(content){content=content.replace(/\\/g,"\\\\");content=content.replace(/\n/g,"\\n");content=content.replace(/"/g,'\\"');return content};this.scanner.scan(function(token,scanner){if(scanner.stag==null){switch(token){case"\n":content=content+"\n";buff.push(put_cmd+'"'+clean(content)+'");');buff.cr();content="";break;case scanner.left_delimiter:case scanner.left_equal:case scanner.left_comment:scanner.stag=token;if(content.length>0){buff.push(put_cmd+'"'+clean(content)+'")')}content="";break;case scanner.double_left:content=content+scanner.left_delimiter;break;default:content=content+token;break}}else{switch(token){case scanner.right_delimiter:switch(scanner.stag){case scanner.left_delimiter:if(content[content.length-1]=="\n"){content=chop(content);buff.push(content);buff.cr()}else{buff.push(content)}break;case scanner.left_equal:buff.push(insert_cmd+"(EJS.Scanner.to_text("+content+")))");break}scanner.stag=null;content="";break;case scanner.double_right:content=content+scanner.right_delimiter;break;default:content=content+token;break}}});if(content.length>0){buff.push(put_cmd+'"'+clean(content)+'")')}buff.close();this.out=buff.script+";";var to_be_evaled="/*"+name+"*/this.process = function(_CONTEXT,_VIEW) { try { with(_VIEW) { with (_CONTEXT) {"+this.out+" return ___ViewO.join('');}}}catch(e){e.lineNumber=null;throw e;}};";try{eval(to_be_evaled)}catch(e){if(typeof JSLINT!="undefined"){JSLINT(this.out);for(var i=0;i<JSLINT.errors.length;i++){var error=JSLINT.errors[i];if(error.reason!="Unnecessary semicolon."){error.line++;var e=new Error();e.lineNumber=error.line;e.message=error.reason;if(options.view){e.fileName=options.view}throw e}}}else{throw e}}}};EJS.config=function(options){EJS.cache=options.cache!=null?options.cache:EJS.cache;EJS.type=options.type!=null?options.type:EJS.type;EJS.ext=options.ext!=null?options.ext:EJS.ext;var templates_directory=EJS.templates_directory||{};EJS.templates_directory=templates_directory;EJS.get=function(path,cache){if(cache==false){return null}if(templates_directory[path]){return templates_directory[path]}return null};EJS.update=function(path,template){if(path==null){return }templates_directory[path]=template};EJS.INVALID_PATH=-1};EJS.config({cache:true,type:"<",ext:".ejs"});EJS.Helpers=function(data,extras){this._data=data;this._extras=extras;extend(this,extras)};EJS.Helpers.prototype={view:function(options,data,helpers){if(!helpers){helpers=this._extras}if(!data){data=this._data}return new EJS(options).render(data,helpers)},to_text:function(input,null_text){if(input==null||input===undefined){return null_text||""}if(input instanceof Date){return input.toDateString()}if(input.toString){return input.toString().replace(/\n/g,"<br />").replace(/''/g,"'")}return""}};EJS.newRequest=function(){var factories=[function(){return new ActiveXObject("Msxml2.XMLHTTP")},function(){return new XMLHttpRequest()},function(){return new ActiveXObject("Microsoft.XMLHTTP")}];for(var i=0;i<factories.length;i++){try{var request=factories[i]();if(request!=null){return request}}catch(e){continue}}};EJS.request=function(path){var request=new EJS.newRequest();request.open("GET",path,false);try{request.send(null)}catch(e){return null}if(request.status==404||request.status==2||(request.status==0&&request.responseText=="")){return null}return request.responseText};EJS.ajax_request=function(params){params.method=(params.method?params.method:"GET");var request=new EJS.newRequest();request.onreadystatechange=function(){if(request.readyState==4){if(request.status==200){params.onComplete(request)}else{params.onComplete(request)}}};request.open(params.method,params.url);request.send(null)}})();EJS.Helpers.prototype.date_tag=function(C,O,A){if(!(O instanceof Date)){O=new Date()}var B=["January","February","March","April","May","June","July","August","September","October","November","December"];var G=[],D=[],P=[];var J=O.getFullYear();var H=O.getMonth();var N=O.getDate();for(var M=J-15;M<J+15;M++){G.push({value:M,text:M})}for(var E=0;E<12;E++){D.push({value:(E),text:B[E]})}for(var I=0;I<31;I++){P.push({value:(I+1),text:(I+1)})}var L=this.select_tag(C+"[year]",J,G,{id:C+"[year]"});var F=this.select_tag(C+"[month]",H,D,{id:C+"[month]"});var K=this.select_tag(C+"[day]",N,P,{id:C+"[day]"});return L+F+K};EJS.Helpers.prototype.form_tag=function(B,A){A=A||{};A.action=B;if(A.multipart==true){A.method="post";A.enctype="multipart/form-data"}return this.start_tag_for("form",A)};EJS.Helpers.prototype.form_tag_end=function(){return this.tag_end("form")};EJS.Helpers.prototype.hidden_field_tag=function(A,C,B){return this.input_field_tag(A,C,"hidden",B)};EJS.Helpers.prototype.input_field_tag=function(A,D,C,B){B=B||{};B.id=B.id||A;B.value=D||"";B.type=C||"text";B.name=A;return this.single_tag_for("input",B)};EJS.Helpers.prototype.is_current_page=function(A){return(window.location.href==A||window.location.pathname==A?true:false)};EJS.Helpers.prototype.link_to=function(B,A,C){if(!B){var B="null"}if(!C){var C={}}if(C.confirm){C.onclick=' var ret_confirm = confirm("'+C.confirm+'"); if(!ret_confirm){ return false;} ';C.confirm=null}C.href=A;return this.start_tag_for("a",C)+B+this.tag_end("a")};EJS.Helpers.prototype.submit_link_to=function(B,A,C){if(!B){var B="null"}if(!C){var C={}}C.onclick=C.onclick||"";if(C.confirm){C.onclick=' var ret_confirm = confirm("'+C.confirm+'"); if(!ret_confirm){ return false;} ';C.confirm=null}C.value=B;C.type="submit";C.onclick=C.onclick+(A?this.url_for(A):"")+"return false;";return this.start_tag_for("input",C)};EJS.Helpers.prototype.link_to_if=function(F,B,A,D,C,E){return this.link_to_unless((F==false),B,A,D,C,E)};EJS.Helpers.prototype.link_to_unless=function(E,B,A,C,D){C=C||{};if(E){if(D&&typeof D=="function"){return D(B,A,C,D)}else{return B}}else{return this.link_to(B,A,C)}};EJS.Helpers.prototype.link_to_unless_current=function(B,A,C,D){C=C||{};return this.link_to_unless(this.is_current_page(A),B,A,C,D)};EJS.Helpers.prototype.password_field_tag=function(A,C,B){return this.input_field_tag(A,C,"password",B)};EJS.Helpers.prototype.select_tag=function(D,G,H,F){F=F||{};F.id=F.id||D;F.value=G;F.name=D;var B="";B+=this.start_tag_for("select",F);for(var E=0;E<H.length;E++){var C=H[E];var A={value:C.value};if(C.value==G){A.selected="selected"}B+=this.start_tag_for("option",A)+C.text+this.tag_end("option")}B+=this.tag_end("select");return B};EJS.Helpers.prototype.single_tag_for=function(A,B){return this.tag(A,B,"/>")};EJS.Helpers.prototype.start_tag_for=function(A,B){return this.tag(A,B)};EJS.Helpers.prototype.submit_tag=function(A,B){B=B||{};B.type=B.type||"submit";B.value=A||"Submit";return this.single_tag_for("input",B)};EJS.Helpers.prototype.tag=function(C,E,D){if(!D){var D=">"}var B=" ";for(var A in E){if(E[A]!=null){var F=E[A].toString()}else{var F=""}if(A=="Class"){A="class"}if(F.indexOf("'")!=-1){B+=A+'="'+F+'" '}else{B+=A+"='"+F+"' "}}return"<"+C+B+D};EJS.Helpers.prototype.tag_end=function(A){return"</"+A+">"};EJS.Helpers.prototype.text_area_tag=function(A,C,B){B=B||{};B.id=B.id||A;B.name=B.name||A;C=C||"";if(B.size){B.cols=B.size.split("x")[0];B.rows=B.size.split("x")[1];delete B.size}B.cols=B.cols||50;B.rows=B.rows||4;return this.start_tag_for("textarea",B)+C+this.tag_end("textarea")};EJS.Helpers.prototype.text_tag=EJS.Helpers.prototype.text_area_tag;EJS.Helpers.prototype.text_field_tag=function(A,C,B){return this.input_field_tag(A,C,"text",B)};EJS.Helpers.prototype.url_for=function(A){return'window.location="'+A+'";'};EJS.Helpers.prototype.img_tag=function(B,C,A){A=A||{};A.src=B;A.alt=C;return this.single_tag_for("img",A)};
EJS.Helpers.prototype.date_tag = function(name, value , html_options) {
    if(! (value instanceof Date))
		value = new Date()
	
	var month_names = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
	var years = [], months = [], days =[];
	var year = value.getFullYear();
	var month = value.getMonth();
	var day = value.getDate();
	for(var y = year - 15; y < year+15 ; y++)
	{
		years.push({value: y, text: y})
	}
	for(var m = 0; m < 12; m++)
	{
		months.push({value: (m), text: month_names[m]})
	}
	for(var d = 0; d < 31; d++)
	{
		days.push({value: (d+1), text: (d+1)})
	}
	var year_select = this.select_tag(name+'[year]', year, years, {id: name+'[year]'} )
	var month_select = this.select_tag(name+'[month]', month, months, {id: name+'[month]'})
	var day_select = this.select_tag(name+'[day]', day, days, {id: name+'[day]'})
	
    return year_select+month_select+day_select;
}

EJS.Helpers.prototype.form_tag = function(action, html_options) {
                 
    
    html_options     = html_options                     || {};
	html_options.action = action
    if(html_options.multipart == true) {
        html_options.method = 'post';
        html_options.enctype = 'multipart/form-data';
    }
    
    return this.start_tag_for('form', html_options)
}

EJS.Helpers.prototype.form_tag_end = function() { return this.tag_end('form'); }

EJS.Helpers.prototype.hidden_field_tag   = function(name, value, html_options) { 
    return this.input_field_tag(name, value, 'hidden', html_options); 
}

EJS.Helpers.prototype.input_field_tag = function(name, value , inputType, html_options) {
    
    html_options = html_options || {};
    html_options.id  = html_options.id  || name;
    html_options.value = value || '';
    html_options.type = inputType || 'text';
    html_options.name = name;
    
    return this.single_tag_for('input', html_options)
}

EJS.Helpers.prototype.is_current_page = function(url) {
	return (window.location.href == url || window.location.pathname == url ? true : false);
}

EJS.Helpers.prototype.link_to = function(name, url, html_options) {
    if(!name) var name = 'null';
    if(!html_options) var html_options = {}
	
	if(html_options.confirm){
		html_options.onclick = 
		" var ret_confirm = confirm(\""+html_options.confirm+"\"); if(!ret_confirm){ return false;} "
		html_options.confirm = null;
	}
    html_options.href=url
    return this.start_tag_for('a', html_options)+name+ this.tag_end('a');
}

EJS.Helpers.prototype.submit_link_to = function(name, url, html_options){
	if(!name) var name = 'null';
    if(!html_options) var html_options = {}
    html_options.onclick = html_options.onclick  || '' ;
	
	if(html_options.confirm){
		html_options.onclick = 
		" var ret_confirm = confirm(\""+html_options.confirm+"\"); if(!ret_confirm){ return false;} "
		html_options.confirm = null;
	}
	
    html_options.value = name;
	html_options.type = 'submit'
    html_options.onclick=html_options.onclick+
		(url ? this.url_for(url) : '')+'return false;';
    //html_options.href='#'+(options ? Routes.url_for(options) : '')
	return this.start_tag_for('input', html_options)
}

EJS.Helpers.prototype.link_to_if = function(condition, name, url, html_options, post, block) {
	return this.link_to_unless((condition == false), name, url, html_options, post, block);
}

EJS.Helpers.prototype.link_to_unless = function(condition, name, url, html_options, block) {
	html_options = html_options || {};
	if(condition) {
		if(block && typeof block == 'function') {
			return block(name, url, html_options, block);
		} else {
			return name;
		}
	} else
		return this.link_to(name, url, html_options);
}

EJS.Helpers.prototype.link_to_unless_current = function(name, url, html_options, block) {
	html_options = html_options || {};
	return this.link_to_unless(this.is_current_page(url), name, url, html_options, block)
}


EJS.Helpers.prototype.password_field_tag = function(name, value, html_options) { return this.input_field_tag(name, value, 'password', html_options); }

EJS.Helpers.prototype.select_tag = function(name, value, choices, html_options) {     
    html_options = html_options || {};
    html_options.id  = html_options.id  || name;
    html_options.value = value;
	html_options.name = name;
    
    var txt = ''
    txt += this.start_tag_for('select', html_options)
    
    for(var i = 0; i < choices.length; i++)
    {
        var choice = choices[i];
        var optionOptions = {value: choice.value}
        if(choice.value == value)
            optionOptions.selected ='selected'
        txt += this.start_tag_for('option', optionOptions )+choice.text+this.tag_end('option')
    }
    txt += this.tag_end('select');
    return txt;
}

EJS.Helpers.prototype.single_tag_for = function(tag, html_options) { return this.tag(tag, html_options, '/>');}

EJS.Helpers.prototype.start_tag_for = function(tag, html_options)  { return this.tag(tag, html_options); }

EJS.Helpers.prototype.submit_tag = function(name, html_options) {  
    html_options = html_options || {};
    //html_options.name  = html_options.id  || 'commit';
    html_options.type = html_options.type  || 'submit';
    html_options.value = name || 'Submit';
    return this.single_tag_for('input', html_options);
}

EJS.Helpers.prototype.tag = function(tag, html_options, end) {
    if(!end) var end = '>'
    var txt = ' '
    for(var attr in html_options) { 
	   if(html_options[attr] != null)
        var value = html_options[attr].toString();
       else
        var value=''
       if(attr == "Class") // special case because "class" is a reserved word in IE
        attr = "class";
       if( value.indexOf("'") != -1 )
            txt += attr+'=\"'+value+'\" ' 
       else
            txt += attr+"='"+value+"' " 
    }
    return '<'+tag+txt+end;
}

EJS.Helpers.prototype.tag_end = function(tag)             { return '</'+tag+'>'; }

EJS.Helpers.prototype.text_area_tag = function(name, value, html_options) { 
    html_options = html_options || {};
    html_options.id  = html_options.id  || name;
    html_options.name  = html_options.name  || name;
	value = value || ''
    if(html_options.size) {
        html_options.cols = html_options.size.split('x')[0]
        html_options.rows = html_options.size.split('x')[1];
        delete html_options.size
    }
    
    html_options.cols = html_options.cols  || 50;
    html_options.rows = html_options.rows  || 4;
    
    return  this.start_tag_for('textarea', html_options)+value+this.tag_end('textarea')
}
EJS.Helpers.prototype.text_tag = EJS.Helpers.prototype.text_area_tag

EJS.Helpers.prototype.text_field_tag     = function(name, value, html_options) { return this.input_field_tag(name, value, 'text', html_options); }

EJS.Helpers.prototype.url_for = function(url) {
        return 'window.location="'+url+'";'
}
EJS.Helpers.prototype.img_tag = function(image_location, alt, options){
	options = options || {};
	options.src = image_location
	options.alt = alt
	return this.single_tag_for('img', options)
}
;
// Will render a Question with multiple choices for answers.

// Options format:
// {
//   title: "Optional title for question box",
//   question: "Question text",
//   answers: [{text: "Answer text", correct: false}, ...],
//   singleAnswer: true, // or false, will change rendered output slightly.
//   singlePoint: true,  // True if question give a single point score only
//                       // if all are correct, false to give 1 point per
//                       // correct answer. (Only for singleAnswer=false)
//   randomAnswers: false  // Whether to randomize the order of answers.
// }
//
// Events provided:
// - h5pQuestionAnswered: Triggered when a question has been answered.

var H5P = H5P || {};

/**
 * @typedef {Object} Options
 *   Options for multiple choice
 *
 * @property {Object} behaviour
 * @property {boolean} behaviour.confirmCheckDialog
 * @property {boolean} behaviour.confirmRetryDialog
 *
 * @property {Object} UI
 * @property {string} UI.tipsLabel
 *
 * @property {Object} [confirmRetry]
 * @property {string} [confirmRetry.header]
 * @property {string} [confirmRetry.body]
 * @property {string} [confirmRetry.cancelLabel]
 * @property {string} [confirmRetry.confirmLabel]
 *
 * @property {Object} [confirmCheck]
 * @property {string} [confirmCheck.header]
 * @property {string} [confirmCheck.body]
 * @property {string} [confirmCheck.cancelLabel]
 * @property {string} [confirmCheck.confirmLabel]
 */

/**
 * Module for creating a multiple choice question
 *
 * @param {Options} options
 * @param {number} contentId
 * @param {Object} contentData
 * @returns {H5P.MultiChoice}
 * @constructor
 */
H5P.MultiChoice = function (options, contentId, contentData) {
  if (!(this instanceof H5P.MultiChoice))
    return new H5P.MultiChoice(options, contentId, contentData);
  var self = this;
  this.contentId = contentId;
  H5P.Question.call(self, 'multichoice');
  var $ = H5P.jQuery;

  // checkbox or radiobutton
  var texttemplate =
    '<ul class="h5p-answers" role="<%= role %>" aria-labelledby="<%= label %>">' +
    '  <% for (var i=0; i < answers.length; i++) { %>' +
    '    <li class="h5p-answer" role="<%= answers[i].role %>" tabindex="<%= answers[i].tabindex %>" aria-checked="<%= answers[i].checked %>" data-id="<%= i %>">' +
    '      <div class="h5p-alternative-container">' +
    '        <span class="h5p-alternative-inner"><%= answers[i].text %></span><span class="h5p-hidden-read">.</span>' +
    '      </div>' +
    '      <div class="h5p-clearfix"></div>' +
    '    </li>' +
    '  <% } %>' +
    '</ul>';

  var defaults = {
    image: null,
    question: "No question text provided",
    answers: [
      {
        tipsAndFeedback: {
          tip: '',
          chosenFeedback: '',
          notChosenFeedback: ''
        },
        text: "Answer 1",
        correct: true
      }
    ],
    weight: 1,
    userAnswers: [],
    UI: {
      checkAnswerButton: 'Check',
      showSolutionButton: 'Show solution',
      tryAgainButton: 'Try again',
      scoreBarLabel: 'Score',
      tipAvailable: "Tip available",
      feedbackAvailable: "Feedback available",
      readFeedback: 'Read feedback',
      feedback: 'You got @score of @total points',
      shouldCheck: "Should have been checked",
      shouldNotCheck: "Should not have been checked",
      noInput: 'Input is required before viewing the solution'
    },
    behaviour: {
      enableRetry: true,
      enableSolutionsButton: true,
      type: 'auto',
      singlePoint: true,
      randomAnswers: false,
      showSolutionsRequiresInput: true,
      disableImageZooming: false,
      autoCheck: false,
      passPercentage: 100
    },
    overrideSettings: {}
  };
  var template = new EJS({text: texttemplate});
  var params = $.extend(true, {}, defaults, options);

  // Keep track of number of correct choices
  var numCorrect = 0;

  // Loop through choices
  for (var i = 0; i < params.answers.length; i++) {
    var answer = params.answers[i];

    // Make sure tips and feedback exists
    answer.tipsAndFeedback = answer.tipsAndFeedback || {};

    if (params.answers[i].correct) {
      // Update number of correct choices
      numCorrect++;
    }
  }

  // Determine if no choices is the correct
  var blankIsCorrect = (numCorrect === 0);

  // Determine task type
  if (params.behaviour.type === 'auto') {
    // Use single choice if only one choice is correct
    params.behaviour.singleAnswer = (numCorrect === 1);
  }
  else {
    params.behaviour.singleAnswer = (params.behaviour.type === 'single');
  }

  var getCheckboxOrRadioIcon = function (radio, selected) {
    var icon;
    if (radio) {
      icon = selected ? '&#xe603;' : '&#xe600;';
    }
    else {
      icon = selected ? '&#xe601;' : '&#xe602;';
    }
    return icon;
  };

  // Initialize buttons and elements.
  var $myDom;
  var $feedbackDialog;

  /**
   * Remove all feedback dialogs
   */
  var removeFeedbackDialog = function () {
    // Remove the open feedback dialogs.
    $myDom.unbind('click', removeFeedbackDialog);
    $myDom.find('.h5p-feedback-button, .h5p-feedback-dialog').remove();
    $myDom.find('.h5p-has-feedback').removeClass('h5p-has-feedback');
    if ($feedbackDialog) {
      $feedbackDialog.remove();
    }
  };

  var score = 0;
  var solutionsVisible = false;

  /**
   * Add feedback to element
   * @param {jQuery} $element Element that feedback will be added to
   * @param {string} feedback Feedback string
   */
  var addFeedback = function ($element, feedback) {
    $feedbackDialog = $('' +
    '<div class="h5p-feedback-dialog">' +
      '<div class="h5p-feedback-inner">' +
        '<div class="h5p-feedback-text" aria-hidden="true">' + feedback + '</div>' +
      '</div>' +
    '</div>');

    //make sure feedback is only added once
    if (!$element.find($('.h5p-feedback-dialog')).length) {
      $feedbackDialog.appendTo($element.addClass('h5p-has-feedback'));
    }
  };

  /**
   * Register the different parts of the task with the H5P.Question structure.
   */
  self.registerDomElements = function () {
    if (params.media && params.media.library) {
      var type = params.media.library.split(' ')[0];
      if (type === 'H5P.Image') {
        if (params.media.params.file) {
          // Register task image
          self.setImage(params.media.params.file.path, {
            disableImageZooming: params.behaviour.disableImageZooming,
            alt: params.media.params.alt
          });
        }
      }
      else if (type === 'H5P.Video') {
        if (params.media.params.sources) {
          // Register task video
          self.setVideo(params.media);
        }
      }
    }

    // Determine if we're using checkboxes or radio buttons
    for (var i = 0; i < params.answers.length; i++) {
      params.answers[i].checkboxOrRadioIcon = getCheckboxOrRadioIcon(params.behaviour.singleAnswer, params.userAnswers.indexOf(i) > -1);
    }

    // Register Introduction
    self.setIntroduction('<div id="' + params.label + '">' + params.question + '</div>');

    // Register task content area
    $myDom = $(template.render(params));
    self.setContent($myDom, {
      'class': params.behaviour.singleAnswer ? 'h5p-radio' : 'h5p-check'
    });

    // Create tips:
    var $answers = $('.h5p-answer', $myDom).each(function (i) {
      var $tipContainer = $(this);

      var tip = params.answers[i].tipsAndFeedback.tip;
      if (tip === undefined) {
        return; // No tip
      }

      tip = tip.trim();
      var tipContent = tip
        .replace(/&nbsp;/g, '')
        .replace(/<p>/g, '')
        .replace(/<\/p>/g, '')
        .trim();
      if (!tipContent.length) {
        return; // Empty tip
      }

      // Add tip
      var $wrap = $('<div/>', {
        'class': 'h5p-multichoice-tipwrap',
        'aria-label': params.UI.tipAvailable + '.'
      });
      var $multichoiceTip = $('<div>', {
        'role': 'button',
        'tabindex': 0,
        'title': params.UI.tipsLabel,
        'aria-label': params.UI.tipsLabel,
        'aria-expanded': false,
        'class': 'multichoice-tip',
        appendTo: $wrap
      }).click(function () {
        var openFeedback = !$tipContainer.children('.h5p-feedback-dialog').is($feedbackDialog);
        removeFeedbackDialog();

        // Do not open feedback if it was open
        if (openFeedback) {
          $multichoiceTip.attr('aria-expanded', true);

          // Add tip dialog
          addFeedback($tipContainer, tip);
          $feedbackDialog.addClass('h5p-has-tip');

          // Tip for readspeaker
          self.read(tip);
        }
        else {
          $multichoiceTip.attr('aria-expanded', false);
        }

        self.trigger('resize');

        // Remove tip dialog on dom click
        setTimeout(function () {
          $myDom.click(removeFeedbackDialog);
        }, 100);

        // Do not propagate
        return false;
      }).keydown(function (e) {
        if (e.which === 32) {
          $(this).click();
          return false;
        }
      });

      $('.h5p-alternative-container', this).append($wrap);
    });

    // Set event listeners.
    var toggleCheck = function ($ans) {
      if ($ans.attr('aria-disabled') === 'true') {
        return;
      }
      var num = parseInt($ans.data('id'));
      if (params.behaviour.singleAnswer) {
        // Store answer
        params.userAnswers[0] = num;

        // Calculate score
        score = (params.answers[num].correct ? 1 : 0);

        // De-select previous answer
        $answers.not($ans).removeClass('h5p-selected').attr('tabindex', '-1').attr('aria-checked', 'false');

        // Select new answer
        $ans.addClass('h5p-selected').attr('tabindex', '0').attr('aria-checked', 'true');
      }
      else {
        if ($ans.attr('aria-checked') === 'true') {

          // Do not allow un-checking when retry disabled and auto check
          if (params.behaviour.autoCheck && !params.behaviour.enableRetry) {
            return;
          }

          // Remove check
          $ans.removeClass('h5p-selected').attr('aria-checked', 'false');
        }
        else {
          $ans.addClass('h5p-selected').attr('aria-checked', 'true');
        }

        // Calculate score
        calcScore();
      }

      self.triggerXAPI('interacted');
      self.hideSolutions();

      if (params.userAnswers.length) {
        self.showButton('check-answer');
        self.hideButton('try-again');
        self.hideButton('show-solution');

        if (params.behaviour.autoCheck) {
          if (params.behaviour.singleAnswer) {
            // Only a single answer allowed
            checkAnswer();
          }
          else {
            // Show feedback for selected alternatives
            self.showCheckSolution(true);

            // Always finish task if it was completed successfully
            if (score === self.getMaxScore()) {
              checkAnswer();
            }
          }
        }
      }
    };

    $answers.click(function () {
      self.answered = true;
      toggleCheck($(this));
    }).keydown(function (e) {
      if (e.keyCode === 32) { // Space bar
        // Select current item
        toggleCheck($(this));
        return false;
      }

      if (params.behaviour.singleAnswer) {
        switch (e.keyCode) {
          case 38:   // Up
          case 37: { // Left
            // Try to select previous item
            var $prev = $(this).prev();
            if ($prev.length) {
              toggleCheck($prev.focus());
            }
            return false;
          }
          case 40:   // Down
          case 39: { // Right
            // Try to select next item
            var $next = $(this).next();
            if ($next.length) {
              toggleCheck($next.focus());
            }
            return false;
          }
        }
      }
    });

    if (params.behaviour.singleAnswer) {
      // Special focus handler for radio buttons
      $answers.focus(function () {
        if ($(this).attr('aria-disabled') !== 'true') {
          $answers.not(this).attr('tabindex', '-1');
        }
      }).blur(function () {
        if (!$answers.filter('.h5p-selected').length) {
          $answers.first().add($answers.last()).attr('tabindex', '0');
        }
      });
    }

    // Adds check and retry button
    addButtons();
    if (!params.behaviour.singleAnswer) {

      calcScore();
    }
    else {
      if (params.userAnswers.length && params.answers[params.userAnswers[0]].correct) {
        score = 1;
      }
      else {
        score = 0;
      }
    }

    // Has answered through auto-check in a previous session
    if (hasCheckedAnswer && params.behaviour.autoCheck) {

      // Check answers if answer has been given or max score reached
      if (params.behaviour.singleAnswer || score === self.getMaxScore()) {
        checkAnswer();
      }
      else {
        // Show feedback for checked checkboxes
        self.showCheckSolution(true);
      }
    }
  };

  this.showAllSolutions = function () {
    if (solutionsVisible) {
      return;
    }
    solutionsVisible = true;

    $myDom.find('.h5p-answer').each(function (i, e) {
      var $e = $(e);
      var a = params.answers[i];
      if (a.correct) {
        $e.addClass('h5p-should').append($('<span/>', {
          'class': 'h5p-solution-icon',
          html: params.UI.shouldCheck + '.'
        }));
      }
      else {
        $e.addClass('h5p-should-not').append($('<span/>', {
          'class': 'h5p-solution-icon',
          html: params.UI.shouldNotCheck + '.'
        }));
      }
    });

    // Make sure input is disabled in solution mode
    disableInput();

    //Hide buttons and retry depending on settings.
    self.hideButton('check-answer');
    self.hideButton('show-solution');
    if (params.behaviour.enableRetry) {
      self.showButton('try-again');
    }
    self.trigger('resize');
  };

  /**
   * Used in contracts.
   * Shows the solution for the task and hides all buttons.
   */
  this.showSolutions = function () {
    removeFeedbackDialog();
    self.showCheckSolution();
    self.showAllSolutions();
    disableInput();
    self.hideButton('try-again');
  };

  /**
   *
   */
  this.hideSolutions = function () {
    solutionsVisible = false;

    $('.h5p-answer', $myDom)
      .removeClass('h5p-correct')
      .removeClass('h5p-wrong')
      .removeClass('h5p-should')
      .removeClass('h5p-should-not')
      .removeClass('h5p-has-feedback');

    $('.h5p-answer-icon, .h5p-solution-icon, .h5p-feedback-dialog', $myDom).remove();

    this.setFeedback(); // Reset feedback

    self.trigger('resize');
  };

  /**
   * Resets the whole task.
   * Used in contracts with integrated content.
   * @private
   */
  this.resetTask = function () {
    self.answered = false;
    self.hideSolutions();
    params.userAnswers = [];
    removeSelections();
    self.showButton('check-answer');
    self.hideButton('try-again');
    self.hideButton('show-solution');
    enableInput();
    $myDom.find('.h5p-feedback-available').remove();
  };

  var calculateMaxScore = function () {
    if (blankIsCorrect) {
      return params.weight;
    }
    var maxScore = 0;
    for (var i = 0; i < params.answers.length; i++) {
      var choice = params.answers[i];
      if (choice.correct) {
        maxScore += (choice.weight !== undefined ? choice.weight : 1);
      }
    }
    return maxScore;
  };

  this.getMaxScore = function () {
    return (!params.behaviour.singleAnswer && !params.behaviour.singlePoint ? calculateMaxScore() : params.weight);
  };

  /**
   * Check answer
   */
  var checkAnswer = function () {
    // Unbind removal of feedback dialogs on click
    $myDom.unbind('click', removeFeedbackDialog);

    // Remove all tip dialogs
    removeFeedbackDialog();

    self.hideButton('check-answer');
    if (params.behaviour.enableSolutionsButton) {
      self.showButton('show-solution');
    }
    if (params.behaviour.enableRetry) {
      self.showButton('try-again');
    }

    self.showCheckSolution();
    disableInput();

    var xAPIEvent = self.createXAPIEventTemplate('answered');
    addQuestionToXAPI(xAPIEvent);
    addResponseToXAPI(xAPIEvent);
    self.trigger(xAPIEvent);
    self.trigger('resize');
  };

  /**
   * Determine if any of the radios or checkboxes have been checked.
   *
   * @return {boolean}
   */
  var isAnswerSelected = function () {
    return !!$('.h5p-answer[aria-checked="true"]', $myDom).length;
  };

  /**
   * Adds the ui buttons.
   * @private
   */
  var addButtons = function () {
    // Show solution button
    self.addButton('show-solution', params.UI.showSolutionButton, function () {

      if (params.behaviour.showSolutionsRequiresInput && !isAnswerSelected()) {
        // Require answer before solution can be viewed
        self.updateFeedbackContent(params.UI.noInput);
        self.read(params.UI.noInput);
      }
      else {
        calcScore();
        self.showAllSolutions();
      }
      
    }, false);

    // Check solution button
    if (!params.behaviour.autoCheck || !params.behaviour.singleAnswer) {
      self.addButton('check-answer', params.UI.checkAnswerButton,
        function () {
          self.answered = true;
          checkAnswer();
        },
        true,
        {},
        {
          confirmationDialog: {
            enable: params.behaviour.confirmCheckDialog,
            l10n: params.confirmCheck,
            instance: params.overrideSettings.instance,
            $parentElement: params.overrideSettings.$confirmationDialogParent
          }
        }
      );
    }

    // Try Again button
    self.addButton('try-again', params.UI.tryAgainButton, function () {
      self.showButton('check-answer');
      self.hideButton('try-again');
      self.hideButton('show-solution');
      self.hideSolutions();
      removeSelections();
      enableInput();
      $myDom.find('.h5p-feedback-available').remove();
      self.answered = false;
    }, false, {}, {
      confirmationDialog: {
        enable: params.behaviour.confirmRetryDialog,
        l10n: params.confirmRetry,
        instance: params.overrideSettings.instance,
        $parentElement: params.overrideSettings.$confirmationDialogParent
      }
    });
  };

  /**
   * @private
   */
  var insertFeedback = function ($e, feedback) {
    // Add visuals
    addFeedback($e, feedback);

    // Add button for readspeakers
    var $wrap = $('<div/>', {
      'class': 'h5p-hidden-read h5p-feedback-available',
      'aria-label': params.UI.feedbackAvailable + '.'
    });
    $('<div/>', {
      'role': 'button',
      'tabindex': 0,
      'aria-label': params.UI.readFeedback + '.',
      appendTo: $wrap,
      on: {
        keydown: function (e) {
          if (e.which === 32) { // Space
            self.read(feedback);
            return false;
          }
        }
      },
    });
    $wrap.appendTo($e);
  };

  /**
   * Determine which feedback text to display
   *
   * @param {number} score
   * @param {number} max
   * @return {string}
   */
  var getFeedbackText = function (score, max) {
    var feedback;

    var ratio = (score / max);
    if (isFinite(ratio) && ratio > 0) {
      if (ratio >= 1 && params.UI.correctText) {
        feedback = params.UI.correctText;
      }
      else if (params.UI.almostText) {
        feedback = params.UI.almostText;
      }
    }
    else if (params.UI.wrongText) {
      feedback = params.UI.wrongText;
    }
    if (!feedback) {
      feedback = params.UI.feedback;
    }

    return feedback.replace('@score', score).replace('@total', max);
  };

  /**
   * Shows feedback on the selected fields.
   * @public
   * @param {boolean} [skipFeedback] Skip showing feedback if true
   */
  this.showCheckSolution = function (skipFeedback) {
    $myDom.find('.h5p-answer').each(function (i, e) {
      var $e = $(e);
      var a = params.answers[i];
      var chosen = ($e.attr('aria-checked') === 'true');
      if (chosen) {
        if (a.correct) {
          $e.addClass('h5p-correct').append($('<span/>', {
            'class': 'h5p-answer-icon',
            html: params.UI.correctAnswer + '.'
          }));
        }
        else {
          $e.addClass('h5p-wrong').append($('<span/>', {
            'class': 'h5p-answer-icon',
            html: params.UI.wrongAnswer + '.'
          }));
        }
      }

      if (!skipFeedback) {
        if (chosen && a.tipsAndFeedback.chosenFeedback !== undefined && a.tipsAndFeedback.chosenFeedback !== '') {
          insertFeedback($e, a.tipsAndFeedback.chosenFeedback);
        }
        else if (!chosen && a.tipsAndFeedback.notChosenFeedback !== undefined && a.tipsAndFeedback.notChosenFeedback !== '') {
          insertFeedback($e, a.tipsAndFeedback.notChosenFeedback);
        }
      }
    });

    // Determine feedback
    var max = self.getMaxScore();

    // Show feedback
    if (!skipFeedback) {
      this.setFeedback(getFeedbackText(score, max), score, max, params.UI.scoreBarLabel);
    }

    // Disable task if maxscore is achieved
    var fullScore = (score === max);
    if (fullScore) {
      finishedTask();
    }

    self.trigger('resize');
  };

  /**
   * Method to use when the task is correctly answered, removes all buttons and disables input.
   */
  var finishedTask = function () {
    self.hideButton('check-answer');
    self.hideButton('try-again');
    self.hideButton('show-solution');
    self.trigger('resize');
  };

  /**
   * Disables choosing new input.
   */
  var disableInput = function () {
    $('.h5p-answer', $myDom).attr({
      'aria-disabled': 'true',
      'tabindex': '-1'
    });
  };

  /**
   * Enables new input.
   */
  var enableInput = function () {
    $('.h5p-answer', $myDom).attr('aria-disabled', 'false');
  };

  var calcScore = function () {
    score = 0;
    params.userAnswers = [];
    $('.h5p-answer', $myDom).each(function (idx, el) {
      var $el = $(el);
      if ($el.attr('aria-checked') === 'true') {
        var choice = params.answers[idx];
        var weight = (choice.weight !== undefined ? choice.weight : 1);
        if (choice.correct) {
          score += weight;
        }
        else {
          score -= weight;
        }
        var num = parseInt($(el).data('id'));
        params.userAnswers.push(num);
      }
    });
    if (score < 0) {
      score = 0;
    }
    if (!params.userAnswers.length && blankIsCorrect) {
      score = params.weight;
    }
    if (params.behaviour.singlePoint) {
      score = (100 * score / calculateMaxScore()) >= params.behaviour.passPercentage ? params.weight : 0;
    }
  };

  /**
   * Removes selections from task.
   */
  var removeSelections = function () {
    var $answers = $('.h5p-answer', $myDom)
      .removeClass('h5p-selected')
      .attr('aria-checked', 'false');

    if (!params.behaviour.singleAnswer) {
      $answers.attr('tabindex', '0');
    }
    else {
      $answers.first().attr('tabindex', '0');
    }

    // Set focus to first option
    $answers.first().focus();

    calcScore();
  };

  /**
   * Get xAPI data.
   * Contract used by report rendering engine.
   *
   * @see contract at {@link https://h5p.org/documentation/developers/contracts#guides-header-6}
   */
  this.getXAPIData = function(){
    var xAPIEvent = this.createXAPIEventTemplate('answered');
    addQuestionToXAPI(xAPIEvent);
    addResponseToXAPI(xAPIEvent);
    return {
      statement: xAPIEvent.data.statement
    };
  };

  /**
   * Add the question itself to the definition part of an xAPIEvent
   */
  var addQuestionToXAPI = function (xAPIEvent) {
    var definition = xAPIEvent.getVerifiedStatementValue(['object', 'definition']);
    definition.description = {
      // Remove tags, must wrap in div tag because jQuery 1.9 will crash if the string isn't wrapped in a tag.
      'en-US': $('<div>' + params.question + '</div>').text()
    };
    definition.type = 'http://adlnet.gov/expapi/activities/cmi.interaction';
    definition.interactionType = 'choice';
    definition.correctResponsesPattern = [];
    definition.choices = [];
    for (var i = 0; i < params.answers.length; i++) {
      definition.choices[i] = {
        'id': params.answers[i].originalOrder + '',
        'description': {
          // Remove tags, must wrap in div tag because jQuery 1.9 will crash if the string isn't wrapped in a tag.
          'en-US': $('<div>' + params.answers[i].text + '</div>').text()
        }
      };
      if (params.answers[i].correct) {
        if (!params.singleAnswer) {
          if (definition.correctResponsesPattern.length) {
            definition.correctResponsesPattern[0] += '[,]';
            // This looks insane, but it's how you separate multiple answers
            // that must all be chosen to achieve perfect score...
          }
          else {
            definition.correctResponsesPattern.push('');
          }
          definition.correctResponsesPattern[0] += params.answers[i].originalOrder;
        }
        else {
          definition.correctResponsesPattern.push('' + params.answers[i].originalOrder);
        }
      }
    }
  };

  /**
   * Add the response part to an xAPI event
   *
   * @param {H5P.XAPIEvent} xAPIEvent
   *  The xAPI event we will add a response to
   */
  var addResponseToXAPI = function (xAPIEvent) {
    var maxScore = self.getMaxScore();
    var success = (100 * score / maxScore) >= params.behaviour.passPercentage;

    xAPIEvent.setScoredResult(score, maxScore, self, true, success);
    if (params.userAnswers === undefined) {
      calcScore();
    }

    // Add the response
    var response = '';
    for (var i = 0; i < params.userAnswers.length; i++) {
      if (response !== '') {
        response += '[,]';
      }
      response += idMap === undefined ? params.userAnswers[i] : idMap[params.userAnswers[i]];
    }
    xAPIEvent.data.statement.result.response = response;
  };

  // Initialization code
  // Randomize order, if requested
  var idMap;
  // Store original order in answers
  for (i = 0; i < params.answers.length; i++) {
    params.answers[i].originalOrder = i;
  }
  if (params.behaviour.randomAnswers) {
    var origOrder = $.extend([], params.answers);
    params.answers = H5P.shuffleArray(params.answers);

    // Create a map from the new id to the old one
    idMap = [];
    for (i = 0; i < params.answers.length; i++) {
      idMap[i] = params.answers[i].originalOrder;
    }
  }

  // Start with an empty set of user answers.
  params.userAnswers = [];

  // Restore previous state
  if (contentData && contentData.previousState !== undefined) {

    // Restore answers
    if (contentData.previousState.answers) {
      if (!idMap) {
        params.userAnswers = contentData.previousState.answers;
      }
      else {
        // The answers have been shuffled, and we must use the id mapping.
        for (i = 0; i < contentData.previousState.answers.length; i++) {
          for (var k = 0; k < idMap.length; k++) {
            if (idMap[k] === contentData.previousState.answers[i]) {
              params.userAnswers.push(k);
            }
          }
        }
      }
    }
  }

  var hasCheckedAnswer = false;

  // Loop through choices
  for (var j = 0; j < params.answers.length; j++) {
    var ans = params.answers[j];

    if (!params.behaviour.singleAnswer) {
      // Set role
      ans.role = 'checkbox';
      ans.tabindex = '0';
      if (params.userAnswers.indexOf(j) !== -1) {
        ans.checked = 'true';
        hasCheckedAnswer = true;
      }
    }
    else {
      // Set role
      ans.role = 'radio';

      // Determine tabindex, checked and extra classes
      if (params.userAnswers.length === 0) {
        // No correct answers
        if (i === 0 || i === params.answers.length) {
          ans.tabindex = '0';
        }
      }
      else if (params.userAnswers.indexOf(j) !== -1) {
        // This is the correct choice
        ans.tabindex = '0';
        ans.checked = 'true';
        hasCheckedAnswer = true;
      }
    }

    // Set default
    if (ans.tabindex === undefined) {
      ans.tabindex = '-1';
    }
    if (ans.checked === undefined) {
      ans.checked = 'false';
    }
  }

  H5P.MultiChoice.counter = (H5P.MultiChoice.counter === undefined ? 0 : H5P.MultiChoice.counter + 1);
  params.role = (params.behaviour.singleAnswer ? 'radiogroup' : 'group');
  params.label = 'h5p-mcq' + H5P.MultiChoice.counter;

  /**
   * Pack the current state of the interactivity into a object that can be
   * serialized.
   *
   * @public
   */
  this.getCurrentState = function () {
    var state = {};
    if (!idMap) {
      state.answers = params.userAnswers;
    }
    else {
      // The answers have been shuffled and must be mapped back to their
      // original ID.
      state.answers = [];
      for (var i = 0; i < params.userAnswers.length; i++) {
        state.answers.push(idMap[params.userAnswers[i]]);
      }
    }
    return state;
  };


  /**
   * Check if user has given an answer.
   *
   * @param {boolean} [ignoreCheck] Ignore returning true from pressing "check-answer" button.
   * @return {boolean} True if answer is given
   */
  this.getAnswerGiven = function (ignoreCheck) {
    var answered = ignoreCheck ? false : this.answered;
    return answered || params.userAnswers.length > 0 || blankIsCorrect;
  };

  this.getScore = function () {
    return score;
  };

  this.getTitle = function () {
    return H5P.createTitle(params.question);
  };
};

H5P.MultiChoice.prototype = Object.create(H5P.Question.prototype);
H5P.MultiChoice.prototype.constructor = H5P.MultiChoice;
;