var H5P = H5P || {};

H5P.IFrameEmbed = function (options, contentId) {
  var $ = H5P.jQuery;
  var $iframe = null;
  this.$ = $(this);

  options = H5P.jQuery.extend({
    width: "500px",
    minWidth: "300px",
    height: "500px",
    source: "",
    resizeSupported: true
  }, options);

  if (!this instanceof H5P.IFrameEmbed){
    return new H5P.IFrameEmbed(options, contentId);
  }

  this.attach = function ($wrapper) {
    // Set up an iframe with the correct source, and append
    // it to '$wrapper'.

    var iFrameSource = '';

    if (options.source !== undefined) {
      if (options.source.trim().toLowerCase().substring(0, 4) === 'http') {
        iFrameSource = options.source;
      }
      else {
        iFrameSource = H5P.getContentPath(contentId) + '/' + options.source;
      }
    }

    $iframe = $('<iframe/>', {
      src: iFrameSource,
      scrolling: 'no',
      frameBorder: 0,
      'class': 'h5p-iframe-content h5p-iframe-wrapper',
      css: {
        width: options.width,
        height: options.height,
        display: 'block'
      }
    });

    $wrapper.html('');
    $wrapper.append($iframe);

    if(options.resizeSupported === false) {
      /* Unfortunately fullscreen-button is not in DOM yet.
       * Therefore we need to remove it using a timer */
      setTimeout(function () {
        $('.h5p-enable-fullscreen').hide();
      }, 1);
    }

    this.$.trigger('resize');
  };

  this.resize = function () {
    // Set size of 'iframe' on startup, and when the browser
    // is resized, or enters fullscreen.
    if(options.resizeSupported) {
      $iframe.css(
        (H5P.isFullscreen) ? {width: '100%', height: '100%'} : getElementSize($iframe)
      );
    }
  };

  if (options.resizeSupported && this.on !== undefined) {
    this.on('resize', this.resize);
  }

  var getElementSize = function ($element) {
    // Get width of 'element' parent. Return width and height
    // so that 'element' scales (with the proper ratio) to fit
    // the parent. Make sure 'element' doesn't scale below
    // 'options.minWidth'.
    var elementMinWidth = parseInt(options.minWidth ,10);
    var elementSizeRatio = parseInt(options.height, 10) / parseInt(options.width, 10);
    var parentWidth = $element.parent().width();
    var elementWidth = (parentWidth > elementMinWidth) ? parentWidth : elementMinWidth;

    return {
      width: elementWidth + 'px',
      height: elementWidth * elementSizeRatio + 'px'
    };
  };

  // This is a fix/hack to make touch work in iframe on mobile safari,
  // like if the iframe is listening to touch events on the iframe's
  // window object. (like in PHET simulations)
  window.addEventListener("touchstart", function () {});
};
;
H5P.Column = (function (EventDispatcher) {

  /**
   * Column Constructor
   *
   * @class
   * @param {Object} params Describes task behavior
   * @param {number} id Content identifier
   * @param {Object} data User specific data to adapt behavior
   */
  function Column(params, id, data) {
    /** @alias H5P.Column# */
    var self = this;

    // We support events by extending this class
    EventDispatcher.call(self);

    // Add defaults
    params = params || {};
    if (params.useSeparators === undefined) {
      params.useSeparators = true;
    }

    this.contentData = data;

    // Column wrapper element
    var wrapper;

    // H5P content in the column
    var instances = [];
    var instanceContainers = [];

    // Number of tasks among instances
    var numTasks = 0;

    // Number of tasks that has been completed
    var numTasksCompleted = 0;

    // Keep track of result for each task
    var tasksResultEvent = [];

    // Keep track of last content's margin state
    var previousHasMargin;

    /**
     * Calculate score and trigger completed event.
     *
     * @private
     */
    var completed = function () {
      // Sum all scores
      var raw = 0;
      var max = 0;

      for (var i = 0; i < tasksResultEvent.length; i++) {
        var event = tasksResultEvent[i];
        raw += event.getScore();
        max += event.getMaxScore();
      }

      self.triggerXAPIScored(raw, max, 'completed');
    };

    /**
     * Generates an event handler for the given task index.
     *
     * @private
     * @param {number} taskIndex
     * @return {function} xAPI event handler
     */
    var trackScoring = function (taskIndex) {
      return function (event) {
        if (event.getScore() === null) {
          return; // Skip, not relevant
        }

        if (tasksResultEvent[taskIndex] === undefined) {
          // Update number of completed tasks
          numTasksCompleted++;
        }

        // Keep track of latest event with result
        tasksResultEvent[taskIndex] = event;

        // Track progress
        var progressed = self.createXAPIEventTemplate('progressed');
        progressed.data.statement.object.definition.extensions['http://id.tincanapi.com/extension/ending-point'] = taskIndex + 1;
        self.trigger(progressed);

        // Check to see if we're done
        if (numTasksCompleted === numTasks) {
          // Run this after the current event is sent
          setTimeout(function () {
            completed(); // Done
          }, 0);
        }
      };
    };

    /**
     * Creates a new ontent instance from the given content parameters and
     * then attaches it the wrapper. Sets up event listeners.
     *
     * @private
     * @param {Object} content Parameters
     * @param {Object} [contentData] Content Data
     */
    var addRunnable = function (content, contentData) {
      // Create container for content
      var container = document.createElement('div');
      container.classList.add('h5p-column-content');

      // Content overrides
      var library = content.library.split(' ')[0];
      if (library === 'H5P.Video') {
        // Prevent video from growing endlessly since height is unlimited.
        content.params.visuals.fit = false;
      }

      // Create content instance
      var instance = H5P.newRunnable(content, id, undefined, true, contentData);

      // Bubble resize events
      bubbleUp(instance, 'resize', self);

      // Check if instance is a task
      if (Column.isTask(instance)) {
        // Tasks requires completion

        instance.on('xAPI', trackScoring(numTasks));
        numTasks++;
      }

      if (library === 'H5P.Image' || library === 'H5P.TwitterUserFeed') {
        // Resize when images are loaded

        instance.on('loaded', function () {
          self.trigger('resize');
        });
      }

      // Keep track of all instances
      instances.push(instance);
      instanceContainers.push({
        hasAttached: false,
        container: container,
        instanceIndex: instances.length - 1,
      });

      // Add to DOM wrapper
      wrapper.appendChild(container);
    };

    /**
     * Help get data for content at given index
     *
     * @private
     * @param {number} index
     * @returns {Object} Data object with previous state
     */
    var grabContentData = function (index) {
      var contentData = {
        parent: self
      };

      if (data.previousState && data.previousState.instances && data.previousState.instances[index]) {
        contentData.previousState = data.previousState.instances[index];
      }

      return contentData;
    };

    /**
     * Adds separator before the next content.
     *
     * @private
     * @param {string} libraryName Name of the next content type
     * @param {string} useSeparator
     */
    var addSeparator = function (libraryName, useSeparator) {
      // Determine separator spacing
      var thisHasMargin = (hasMargins.indexOf(libraryName) !== -1);

      // Only add if previous content exists
      if (previousHasMargin !== undefined) {

        // Create separator element
        var separator = document.createElement('div');
        //separator.classList.add('h5p-column-ruler');

        // If no margins, check for top margin only
        if (!thisHasMargin && (hasTopMargins.indexOf(libraryName) === -1)) {
          if (!previousHasMargin) {
            // None of them have margin

            // Only add separator if forced
            if (useSeparator === 'enabled') {
              // Add ruler
              separator.classList.add('h5p-column-ruler');

              // Add space both before and after the ruler
              separator.classList.add('h5p-column-space-before-n-after');
            }
            else {
              // Default is to separte using a single space, no ruler
              separator.classList.add('h5p-column-space-before');
            }
          }
          else {
            // We don't have any margin but the previous content does

            // Only add separator if forced
            if (useSeparator === 'enabled') {
              // Add ruler
              separator.classList.add('h5p-column-ruler');

              // Add space after the ruler
              separator.classList.add('h5p-column-space-after');
            }
          }
        }
        else if (!previousHasMargin) {
          // We have margin but not the previous content doesn't

          // Only add separator if forced
          if (useSeparator === 'enabled') {
            // Add ruler
            separator.classList.add('h5p-column-ruler');

            // Add space after the ruler
            separator.classList.add('h5p-column-space-before');
          }
        }
        else {
          // Both already have margin

          if (useSeparator !== 'disabled') {
            // Default is to add ruler unless its disabled
            separator.classList.add('h5p-column-ruler');
          }
        }

        // Insert into DOM
        wrapper.appendChild(separator);
      }

      // Keep track of spacing for next separator
      previousHasMargin = thisHasMargin || (hasBottomMargins.indexOf(libraryName) !== -1);
    };

    /**
     * Creates a wrapper and the column content the first time the column
     * is attached to the DOM.
     *
     * @private
     */
    var createHTML = function () {
      // Create wrapper
      wrapper = document.createElement('div');

      // Go though all contents
      for (var i = 0; i < params.content.length; i++) {
        var content = params.content[i];

        // In case the author has created an element without selecting any
        // library
        if (content.content === undefined) {
          continue;
        }

        if (params.useSeparators) { // (check for global override)

          // Add separator between contents
          addSeparator(content.content.library.split(' ')[0], content.useSeparator);
        }

        // Add content
        addRunnable(content.content, grabContentData(i));
      }
    };

    /**
     * Attach the column to the given container
     *
     * @param {H5P.jQuery} $container
     */
    self.attach = function ($container) {
      if (wrapper === undefined) {
        // Create wrapper and content
        createHTML();
      }

      // Attach instances that have not been attached
      instanceContainers.filter(function (container) { return !container.hasAttached })
        .forEach(function (container) {
          instances[container.instanceIndex]
            .attach(H5P.jQuery(container.container));

          // Remove any fullscreen buttons
          disableFullscreen(instances[container.instanceIndex]);
        });


      // Add to DOM
      $container.addClass('h5p-column').html('').append(wrapper);
    };

    /**
     * Create object containing information about the current state
     * of this content.
     *
     * @return {Object}
     */
    self.getCurrentState = function () {
      // Get previous state object or create new state object
      var state = (data.previousState ? data.previousState : {});
      if (!state.instances) {
        state.instances = [];
      }

      // Grab the current state for each instance
      for (var i = 0; i < instances.length; i++) {
        var instance = instances[i];

        if (instance.getCurrentState instanceof Function ||
            typeof instance.getCurrentState === 'function') {

          state.instances[i] = instance.getCurrentState();
        }
      }

      // Done
      return state;
    };

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

    /**
     * Get score for all children
     * Contract used for getting the complete score of task.
     *
     * @return {number} Score for questions
     */
    self.getScore = function () {
      return instances.reduce(function (prev, instance) {
        return prev + (instance.getScore ? instance.getScore() : 0);
      }, 0);
    };

    /**
     * Get maximum score possible for all children instances
     * Contract.
     *
     * @return {number} Maximum score for questions
     */
    self.getMaxScore = function () {
      return instances.reduce(function (prev, instance) {
        return prev + (instance.getMaxScore ? instance.getMaxScore() : 0);
      }, 0);
    };

    /**
     * Get answer given
     * Contract.
     *
     * @return {boolean} True, if all answers have been given.
     */
    self.getAnswerGiven = function () {
      return instances.reduce(function (prev, instance) {
        return prev && (instance.getAnswerGiven ? instance.getAnswerGiven() : prev);
      }, true);
    };

    /**
     * Show solutions.
     * Contract.
     */
    self.showSolutions = function () {
      instances.forEach(function (instance) {
        if (instance.toggleReadSpeaker) {
          instance.toggleReadSpeaker(true);
        }
        if (instance.showSolutions) {
          instance.showSolutions();
        }
        if (instance.toggleReadSpeaker) {
          instance.toggleReadSpeaker(false);
        }
      });
    };

    /**
     * Reset task.
     * Contract.
     */
    self.resetTask = function () {
      instances.forEach(function (instance) {
        if (instance.resetTask) {
          instance.resetTask();
        }
      });
    };

    /**
     * Get instances for all children
     * TODO: This is not a good interface, we should provide handling needed
     * handling of the tasks instead of repeating them for each parent...
     *
     * @return {Object[]} array of instances
     */
    self.getInstances = function () {
      return instances;
    };

    /**
     * Get title, e.g. for xAPI when Column is subcontent.
     *
     * @return {string} Title.
     */
    self.getTitle = function () {
      return H5P.createTitle((self.contentData && self.contentData.metadata && self.contentData.metadata.title) ? self.contentData.metadata.title : 'Column');
    };

    /**
     * Add the question itself to the definition part of an xAPIEvent
     */
    var addQuestionToXAPI = function (xAPIEvent) {
      var definition = xAPIEvent.getVerifiedStatementValue(['object', 'definition']);
      H5P.jQuery.extend(definition, getxAPIDefinition());
    };

    /**
     * Generate xAPI object definition used in xAPI statements.
     * @return {Object}
     */
    var getxAPIDefinition = function () {
      var definition = {};

      definition.interactionType = 'compound';
      definition.type = 'http://adlnet.gov/expapi/activities/cmi.interaction';
      definition.description = {
        'en-US': ''
      };

      return definition;
    };

    /**
     * Get xAPI data from sub content types
     *
     * @param {Array} of H5P instances
     * @returns {Array} of xAPI data objects used to build a report
     */
    var getXAPIDataFromChildren = function (children) {
      return children.map(function (child) {
        if (typeof child.getXAPIData == 'function') {
          return child.getXAPIData();
        }
      }).filter(function (data) {
        return !!data;
      });
    };

    // Resize children to fit inside parent
    bubbleDown(self, 'resize', instances);

    if (wrapper === undefined) {
      // Create wrapper and content
      createHTML();
    }

    self.setActivityStarted();
  }

  Column.prototype = Object.create(EventDispatcher.prototype);
  Column.prototype.constructor = Column;

  /**
   * Makes it easy to bubble events from parent to children
   *
   * @private
   * @param {Object} origin Origin of the Event
   * @param {string} eventName Name of the Event
   * @param {Array} targets Targets to trigger event on
   */
  function bubbleDown(origin, eventName, targets) {
    origin.on(eventName, function (event) {
      if (origin.bubblingUpwards) {
        return; // Prevent send event back down.
      }

      for (var i = 0; i < targets.length; i++) {
        targets[i].trigger(eventName, event);
      }
    });
  }

  /**
   * Makes it easy to bubble events from child to parent
   *
   * @private
   * @param {Object} origin Origin of the Event
   * @param {string} eventName Name of the Event
   * @param {Object} target Target to trigger event on
   */
  function bubbleUp(origin, eventName, target) {
    origin.on(eventName, function (event) {
      // Prevent target from sending event back down
      target.bubblingUpwards = true;

      // Trigger event
      target.trigger(eventName, event);

      // Reset
      target.bubblingUpwards = false;
    });
  }

  /**
   * Definition of which content types are tasks
   */
  var isTasks = [
    'H5P.ImageHotspotQuestion',
    'H5P.Blanks',
    'H5P.Essay',
    'H5P.SingleChoiceSet',
    'H5P.MultiChoice',
    'H5P.TrueFalse',
    'H5P.DragQuestion',
    'H5P.Summary',
    'H5P.DragText',
    'H5P.MarkTheWords',
    'H5P.MemoryGame',
    'H5P.QuestionSet',
    'H5P.InteractiveVideo',
    'H5P.CoursePresentation',
    'H5P.DocumentationTool'
  ];

  /**
   * Check if the given content instance is a task (will give a score)
   *
   * @param {Object} instance
   * @return {boolean}
   */
  Column.isTask = function (instance) {
    if (instance.isTask !== undefined) {
      return instance.isTask; // Content will determine self if it's a task
    }

    // Go through the valid task names
    for (var i = 0; i < isTasks.length; i++) {
      // Check against library info. (instanceof is broken in H5P.newRunnable)
      if (instance.libraryInfo.machineName === isTasks[i]) {
        return true;
      }
    }

    return false;
  }

  /**
   * Definition of which content type have margins
   */
  var hasMargins = [
    'H5P.AdvancedText',
    'H5P.AudioRecorder',
    'H5P.Essay',
    'H5P.Link',
    'H5P.Accordion',
    'H5P.Table',
    'H5P.GuessTheAnswer',
    'H5P.Blanks',
    'H5P.MultiChoice',
    'H5P.TrueFalse',
    'H5P.DragQuestion',
    'H5P.Summary',
    'H5P.DragText',
    'H5P.MarkTheWords',
    'H5P.ImageHotspotQuestion',
    'H5P.MemoryGame',
    'H5P.Dialogcards',
    'H5P.QuestionSet',
    'H5P.DocumentationTool'
  ];

  /**
   * Definition of which content type have top margins
   */
  var hasTopMargins = [
    'H5P.SingleChoiceSet'
  ];

  /**
   * Definition of which content type have bottom margins
   */
  var hasBottomMargins = [
    'H5P.CoursePresentation',
    'H5P.Dialogcards',
    'H5P.GuessTheAnswer',
    'H5P.ImageSlider'
  ];

  /**
   * Remove custom fullscreen buttons from sub content.
   * (A bit of a hack, there should have been some sort of overrideā€¦)
   *
   * @param {Object} instance
   */
  function disableFullscreen(instance) {
    switch (instance.libraryInfo.machineName) {
      case 'H5P.CoursePresentation':
        if (instance.$fullScreenButton) {
          instance.$fullScreenButton.remove();
        }
        break;

      case 'H5P.InteractiveVideo':
        instance.on('controls', function () {
          if (instance.controls.$fullscreen) {
            instance.controls.$fullscreen.remove();
          }
        });
        break;
    }
  }

  return Column;
})(H5P.EventDispatcher);
;
var oldTether = window.Tether;
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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 ($) {

  var numInstances = 0;
  /**
   * 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
   * @param {string}      closeButtonTitle The title for the close button
   * @return {H5P.jQuery}
   */
  function JoubelHelpTextDialog(header, message, closeButtonTitle) {
    H5P.EventDispatcher.call(this);

    var self = this;

    numInstances++;
    var headerId = 'joubel-help-text-header-' + numInstances;
    var helpTextId = 'joubel-help-text-body-' + numInstances;

    var $helpTextDialogBox = $('<div>', {
      'class': 'joubel-help-text-dialog-box',
      'role': 'dialog',
      'aria-labelledby': headerId,
      'aria-describedby': helpTextId
    });

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

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

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

    $('<div>', {
      'class': 'joubel-help-text-body',
      'id': helpTextId,
      'html': message,
      'role': 'document',
      'tabindex': 0
    }).appendTo($helpTextDialogContainer);

    var handleClose = function () {
      $helpTextDialogBox.remove();
      self.trigger('closed');
    };

    var $closeButton = $('<div>', {
      'class': 'joubel-help-text-remove',
      'role': 'button',
      'title': closeButtonTitle,
      'tabindex': 1,
      'click': handleClose,
      'keydown': function (event) {
        // 32 - space, 13 - enter
        if ([32, 13].indexOf(event.which) !== -1) {
          event.preventDefault();
          handleClose();
        }
      }
    }).appendTo($helpTextDialogContainer);

    /**
     * Get the DOM element
     * @return {HTMLElement}
     */
    self.getElement = function () {
      return $helpTextDialogBox;
    };

    self.focus = function () {
      $closeButton.focus();
    };
  }

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

  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 || '#1a73d9';
    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) {
      number = 'err';
    }

    //Draw circle
    if (number > 100) {
      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(progressColorRGB.r, 10) +
      ',' + parseInt(progressColorRGB.g, 10) +
      ',' + parseInt(progressColorRGB.b, 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) + 4 : parseInt((fontSize / 4.5), 10) + 5;
      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;
  };

  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) {
      // 32 - space, 13 - enter
      if ([32, 13].indexOf(e.which) !== -1) {
        $(this).click();
        e.preventDefault();
      }
    });

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

    return $simpleRoundedButton;
  }

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

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

  var $currentSpeechBubble;
  var $currentContainer;  
  var $tail;
  var $innerTail;
  var removeSpeechBubbleTimeout;
  var currentMaxWidth;

  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;
    currentMaxWidth = maxWidth;
    $currentContainer = $container;

    this.isCurrent = function ($tip) {
      return $tip.is($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 $h5pContainer = getH5PContainer($container);

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

    // Create bubble
    $tail = $('<div class="joubel-speech-bubble-tail"></div>');
    $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);

    position($currentSpeechBubble, $currentContainer, maxWidth, $tail, $innerTail);

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

    // Handle window resizing
    H5P.$window.on('resize', '', handleResize);

    // 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();
    }
  });

  /**
   * Returns the closest h5p container for the given DOM element.
   * 
   * @param {object} $container jquery element
   * @return {object} the h5p container (jquery element)
   */
  function getH5PContainer($container) {
    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');
    }

    return $h5pContainer;
  }

  /**
   * Event handler that is called when the window is resized.
   */
  function handleResize() {
    position($currentSpeechBubble, $currentContainer, currentMaxWidth, $tail, $innerTail);
  }

  /**
   * Repositions the speech bubble according to the position of the container.
   * 
   * @param {object} $currentSpeechbubble the speech bubble that should be positioned   
   * @param {object} $container the container to which the speech bubble should point 
   * @param {number} maxWidth the maximum width of the speech bubble
   * @param {object} $tail the tail (the triangle that points to the referenced container)
   * @param {object} $innerTail the inner tail (the triangle that points to the referenced container)
   */
  function position($currentSpeechBubble, $container, maxWidth, $tail, $innerTail) {
    var $h5pContainer = getH5PContainer($container);

    // 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);
  }

  /**
   * Static function for removing the speechbubble
   */
  var remove = function () {
    H5P.$body.off('mousedown.speechBubble');
    H5P.$window.off('resize', '', handleResize);
    $currentContainer.parents('.h5p-dialog').off('mousedown.speechBubble');
    if (iDevice) {
      H5P.$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 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',
        top: ''
      };
    }
    else {
      return {
        width: width + 'px',
        top: position.top + 'px',
        left: position.left + 'px',
        fontSize: fontSize + 'px',
        bottom: ''
      };
    }
  }

  /**
   * 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',
        top: ''
      };
    }
    else {
      return {
        top: position.top + 'px',
        left: position.left + 'px',
        bottom: ''
      };
    }
  }

  /**
   * Calculates the offset between an element inside a container and the
   * container. Only works if all the edges of the inner element are 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));
;
H5P.JoubelTip = (function ($) {
  var $conv = $('<div/>');

  /**
   * Creates a new tip element.
   *
   * NOTE that this may look like a class but it doesn't behave like one.
   * It returns a jQuery object.
   *
   * @param {string} tipHtml The text to display in the popup
   * @param {Object} [behaviour] Options
   * @param {string} [behaviour.tipLabel] Set to use a custom label for the tip button (you want this for good A11Y)
   * @param {boolean} [behaviour.helpIcon] Set to 'true' to Add help-icon classname to Tip button (changes the icon)
   * @param {boolean} [behaviour.showSpeechBubble] Set to 'false' to disable functionality (you may this in the editor)
   * @param {boolean} [behaviour.tabcontrol] Set to 'true' if you plan on controlling the tabindex in the parent (tabindex="-1")
   * @return {H5P.jQuery|undefined} Tip button jQuery element or 'undefined' if invalid tip
   */
  function JoubelTip(tipHtml, behaviour) {

    // Keep track of the popup that appears when you click the Tip button
    var speechBubble;

    // Parse tip html to determine text
    var tipText = $conv.html(tipHtml).text().trim();
    if (tipText === '') {
      return; // The tip has no textual content, i.e. it's invalid.
    }

    // Set default behaviour
    behaviour = $.extend({
      tipLabel: tipText,
      helpIcon: false,
      showSpeechBubble: true,
      tabcontrol: false
    }, behaviour);

    // Create Tip button
    var $tipButton = $('<div/>', {
      class: 'joubel-tip-container' + (behaviour.showSpeechBubble ? '' : ' be-quiet'),
      title: behaviour.tipLabel,
      'aria-label': behaviour.tipLabel,
      'aria-expanded': false,
      role: 'button',
      tabindex: (behaviour.tabcontrol ? -1 : 0),
      click: function (event) {
        // Toggle show/hide popup
        toggleSpeechBubble();
        event.preventDefault();
      },
      keydown: function (event) {
        if (event.which === 32 || event.which === 13) { // Space & enter key
          // Toggle show/hide popup
          toggleSpeechBubble();
          event.stopPropagation();
          event.preventDefault();
        }
        else { // Any other key
          // Toggle hide popup
          toggleSpeechBubble(false);
        }
      },
      // Add markup to render icon
      html: '<span class="joubel-icon-tip-normal ' + (behaviour.helpIcon ? ' help-icon': '') + '">' +
              '<span class="h5p-icon-shadow"></span>' +
              '<span class="h5p-icon-speech-bubble"></span>' +
              '<span class="h5p-icon-info"></span>' +
            '</span>'
      // IMPORTANT: All of the markup elements must have 'pointer-events: none;'
    });

    const $tipAnnouncer = $('<div>', {
      'class': 'hidden-but-read',
      'aria-live': 'polite',
      appendTo: $tipButton,
    });

    /**
     * Tip button interaction handler.
     * Toggle show or hide the speech bubble popup when interacting with the
     * Tip button.
     *
     * @private
     * @param {boolean} [force] 'true' shows and 'false' hides.
     */
    var toggleSpeechBubble = function (force) {
      if (speechBubble !== undefined && speechBubble.isCurrent($tipButton)) {
        // Hide current popup
        speechBubble.remove();
        speechBubble = undefined;

        $tipButton.attr('aria-expanded', false);
        $tipAnnouncer.html('');
      }
      else if (force !== false && behaviour.showSpeechBubble) {
        // Create and show new popup
        speechBubble = H5P.JoubelSpeechBubble($tipButton, tipHtml);
        $tipButton.attr('aria-expanded', true);
        $tipAnnouncer.html(tipHtml);
      }
    };

    return $tipButton;
  }

  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);

    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 ($) {

  /* Need to use an id for the star SVG since that is the only way to reference
     SVG filters  */
  var idCounter = 0;

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

    self.maxScore = maxScore;
    self.score = 0;
    idCounter++;

    /**
     * @const {string}
     */
    self.STAR_MARKUP = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 63.77 53.87" aria-hidden="true" focusable="false">' +
        '<title>star</title>' +
        '<filter id="h5p-joubelui-score-bar-star-inner-shadow-' + idCounter + '" x0="-50%" y0="-50%" width="200%" height="200%">' +
          '<feGaussianBlur in="SourceAlpha" stdDeviation="3" result="blur"></feGaussianBlur>' +
          '<feOffset dy="2" dx="4"></feOffset>' +
          '<feComposite in2="SourceAlpha" operator="arithmetic" k2="-1" k3="1" result="shadowDiff"></feComposite>' +
          '<feFlood flood-color="#ffe95c" flood-opacity="1"></feFlood>' +
          '<feComposite in2="shadowDiff" operator="in"></feComposite>' +
          '<feComposite in2="SourceGraphic" operator="over" result="firstfilter"></feComposite>' +
          '<feGaussianBlur in="firstfilter" stdDeviation="3" result="blur2"></feGaussianBlur>' +
          '<feOffset dy="-2" dx="-4"></feOffset>' +
          '<feComposite in2="firstfilter" operator="arithmetic" k2="-1" k3="1" result="shadowDiff"></feComposite>' +
          '<feFlood flood-color="#ffe95c" flood-opacity="1"></feFlood>' +
          '<feComposite in2="shadowDiff" operator="in"></feComposite>' +
          '<feComposite in2="firstfilter" operator="over"></feComposite>' +
        '</filter>' +
        '<path class="h5p-joubelui-score-bar-star-shadow" d="M35.08,43.41V9.16H20.91v0L9.51,10.85,9,10.93C2.8,12.18,0,17,0,21.25a11.22,11.22,0,0,0,3,7.48l8.73,8.53-1.07,6.16Z"/>' +
        '<g>' +
          '<path class="h5p-joubelui-score-bar-star-border" d="M61.36,22.8,49.72,34.11l2.78,16a2.6,2.6,0,0,1,.05.64c0,.85-.37,1.6-1.33,1.6A2.74,2.74,0,0,1,49.94,52L35.58,44.41,21.22,52a2.93,2.93,0,0,1-1.28.37c-.91,0-1.33-.75-1.33-1.6,0-.21.05-.43.05-.64l2.78-16L9.8,22.8A2.57,2.57,0,0,1,9,21.25c0-1,1-1.33,1.81-1.49l16.07-2.35L34.09,2.83c.27-.59.85-1.33,1.55-1.33s1.28.69,1.55,1.33l7.21,14.57,16.07,2.35c.75.11,1.81.53,1.81,1.49A3.07,3.07,0,0,1,61.36,22.8Z"/>' +
          '<path class="h5p-joubelui-score-bar-star-fill" d="M61.36,22.8,49.72,34.11l2.78,16a2.6,2.6,0,0,1,.05.64c0,.85-.37,1.6-1.33,1.6A2.74,2.74,0,0,1,49.94,52L35.58,44.41,21.22,52a2.93,2.93,0,0,1-1.28.37c-.91,0-1.33-.75-1.33-1.6,0-.21.05-.43.05-.64l2.78-16L9.8,22.8A2.57,2.57,0,0,1,9,21.25c0-1,1-1.33,1.81-1.49l16.07-2.35L34.09,2.83c.27-.59.85-1.33,1.55-1.33s1.28.69,1.55,1.33l7.21,14.57,16.07,2.35c.75.11,1.81.53,1.81,1.49A3.07,3.07,0,0,1,61.36,22.8Z"/>' +
          '<path filter="url(#h5p-joubelui-score-bar-star-inner-shadow-' + idCounter + ')" class="h5p-joubelui-score-bar-star-fill-full-score" d="M61.36,22.8,49.72,34.11l2.78,16a2.6,2.6,0,0,1,.05.64c0,.85-.37,1.6-1.33,1.6A2.74,2.74,0,0,1,49.94,52L35.58,44.41,21.22,52a2.93,2.93,0,0,1-1.28.37c-.91,0-1.33-.75-1.33-1.6,0-.21.05-.43.05-.64l2.78-16L9.8,22.8A2.57,2.57,0,0,1,9,21.25c0-1,1-1.33,1.81-1.49l16.07-2.35L34.09,2.83c.27-.59.85-1.33,1.55-1.33s1.28.69,1.55,1.33l7.21,14.57,16.07,2.35c.75.11,1.81.53,1.81,1.49A3.07,3.07,0,0,1,61.36,22.8Z"/>' +
        '</g>' +
      '</svg>';

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

    /**
     * Create the text representation of the scorebar .
     *
     * @private
     * @return {string}
     */
    var createLabel = function (score) {
      if (!label) {
        return '';
      }

      return label.replace(':num', score).replace(':total', self.maxScore);
    };

    /**
     * Creates the html for this widget
     *
     * @method createHtml
     * @private
     */
    var createHtml = function () {
      // Container div
      self.$scoreBar = $('<div>', {
        'class': 'h5p-joubelui-score-bar',
      });

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

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

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

      // The star
      $('<div>', {
        'class': 'h5p-joubelui-score-bar-star',
        html: self.STAR_MARKUP
      }).appendTo($visuals);

      // The score container
      var $numerics = $('<div>', {
        'class': 'h5p-joubelui-score-numeric',
        appendTo: self.$scoreBar,
        'aria-hidden': true
      });

      // The current score
      self.$scoreCounter = $('<span>', {
        'class': 'h5p-joubelui-score-number h5p-joubelui-score-number-counter',
        text: 0,
        appendTo: $numerics
      });

      // The separator
      $('<span>', {
        'class': 'h5p-joubelui-score-number-separator',
        text: '/',
        appendTo: $numerics
      });

      // Max score
      self.$maxScore = $('<span>', {
        'class': 'h5p-joubelui-score-number h5p-joubelui-score-max',
        text: self.maxScore,
        appendTo: $numerics
      });

      if (helpText) {
        H5P.JoubelUI.createTip(helpText, {
          tipLabel: scoreExplanationButtonLabel ? scoreExplanationButtonLabel : helpText,
          helpIcon: true
        }).appendTo(self.$scoreBar);
        self.$scoreBar.addClass('h5p-score-bar-has-help');
      }
    };

    /**
     * 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 () {
      self.$progress.html(createLabel(self.score));
      self.$scoreCounter.text(self.score);
      self.$maxScore.text(self.maxScore);

      setTimeout(function () {
        // Start the progressbar animation
        self.$progress.css({
          width: ((self.score / self.maxScore) * 100) + '%'
        });

        H5P.Transition.onTransitionEnd(self.$progress, function () {
          // If fullscore fill the star and start the animation
          self.$scoreBar.toggleClass('h5p-joubelui-score-bar-full-score', self.score === self.maxScore);
          self.$scoreBar.toggleClass('h5p-joubelui-score-bar-animation-active', self.score === self.maxScore);

          // Only allow the star animation to run once
          self.$scoreBar.one("animationend", function() {
            self.$scoreBar.removeClass("h5p-joubelui-score-bar-animation-active");
          });
        }, 600);
      }, 300);
    };

    /**
     * Removes all classes
     * @method reset
     */
    self.reset = function () {
      self.$scoreBar.removeClass('h5p-joubelui-score-bar-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
   * @param  {string}             closeButtonTitle The title for the close button
   * @return {H5P.JoubelHelpTextDialog}
   */
  JoubelUI.createHelpTextDialog = function (header, message, closeButtonTitle) {
    return new H5P.JoubelHelpTextDialog(header, message, closeButtonTitle);
  };

  /**
   * 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, helpText, scoreExplanationButtonLabel) {
    return new H5P.JoubelScoreBar(maxScore, label, helpText, scoreExplanationButtonLabel);
  };

  /**
   * 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);
  };

  /**
   * Fix for iframe scoll bug in IOS. When focusing an element that doesn't have
   * focus support by default the iframe will scroll the parent frame so that
   * the focused element is out of view. This varies dependening on the elements
   * of the parent frame.
   */
  if (H5P.isFramed && !H5P.hasiOSiframeScrollFix &&
      /iPad|iPhone|iPod/.test(navigator.userAgent)) {
    H5P.hasiOSiframeScrollFix = true;

    // Keep track of original focus function
    var focus = HTMLElement.prototype.focus;

    // Override the original focus
    HTMLElement.prototype.focus = function () {
      // Only focus the element if it supports it natively
      if ( (this instanceof HTMLAnchorElement ||
            this instanceof HTMLInputElement ||
            this instanceof HTMLSelectElement ||
            this instanceof HTMLTextAreaElement ||
            this instanceof HTMLButtonElement ||
            this instanceof HTMLIFrameElement ||
            this instanceof HTMLAreaElement) && // HTMLAreaElement isn't supported by Safari yet.
          !this.getAttribute('role')) { // Focus breaks if a different role has been set
          // In theory this.isContentEditable should be able to recieve focus,
          // but it didn't work when tested.

        // Trigger the original focus with the proper context
        focus.call(this);
      }
    };
  }

  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', 'explanation', 'feedback', 'scorebar', 'buttons', 'read'];

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

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

    // Wrapper when attached
    var $wrapper;

    // Click element
    var clickElement;

    // 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;
        }
      }
    };

    /**
     * Make feedback into a popup and position relative to click.
     *
     * @private
     * @param {string} [closeText] Text for the close button
     */
    var makeFeedbackPopup = function (closeText) {
      var $element = sections.feedback.$element;
      var $parent = sections.content.$element;
      var $click = (clickElement != null ? clickElement.$element : null);

      $element.appendTo($parent).addClass('h5p-question-popup');

      if (sections.scorebar) {
        sections.scorebar.$element.appendTo($element);
      }

      $parent.addClass('h5p-has-question-popup');

      // Draw the tail
      var $tail = $('<div/>', {
        'class': 'h5p-question-feedback-tail'
      }).hide()
        .appendTo($parent);

      // Draw the close button
      var $close = $('<div/>', {
        'class': 'h5p-question-feedback-close',
        'tabindex': 0,
        'title': closeText,
        on: {
          click: function (event) {
            $element.remove();
            $tail.remove();
            event.preventDefault();
          },
          keydown: function (event) {
            switch (event.which) {
              case 13: // Enter
              case 32: // Space
                $element.remove();
                $tail.remove();
                event.preventDefault();
            }
          }
        }
      }).hide().appendTo($element);

      if ($click != null) {
        if ($click.hasClass('correct')) {
          $element.addClass('h5p-question-feedback-correct');
          $close.show();
          sections.buttons.$element.hide();
        }
        else {
          sections.buttons.$element.appendTo(sections.feedback.$element);
        }
      }

      positionFeedbackPopup($element, $click);
    };

    /**
     * Position the feedback popup.
     *
     * @private
     * @param {H5P.jQuery} $element Feedback div
     * @param {H5P.jQuery} $click Visual click div
     */
    var positionFeedbackPopup = function ($element, $click) {
      var $container = $element.parent();
      var $tail = $element.siblings('.h5p-question-feedback-tail');
      var popupWidth = $element.outerWidth();
      var popupHeight = setElementHeight($element);
      var space = 15;
      var disableTail = false;
      var positionY = $container.height() / 2 - popupHeight / 2;
      var positionX = $container.width() / 2 - popupWidth / 2;
      var tailX = 0;
      var tailY = 0;
      var tailRotation = 0;

      if ($click != null) {
        // Edge detection for click, takes space into account
        var clickNearTop = ($click[0].offsetTop < space);
        var clickNearBottom = ($click[0].offsetTop + $click.height() > $container.height() - space);
        var clickNearLeft = ($click[0].offsetLeft < space);
        var clickNearRight = ($click[0].offsetLeft + $click.width() > $container.width() - space);

        // Click is not in a corner or close to edge, calculate position normally
        positionX = $click[0].offsetLeft - popupWidth / 2  + $click.width() / 2;
        positionY = $click[0].offsetTop - popupHeight - space;
        tailX = positionX + popupWidth / 2 - $tail.width() / 2;
        tailY = positionY + popupHeight - ($tail.height() / 2);
        tailRotation = 225;

        // If popup is outside top edge, position under click instead
        if (popupHeight + space > $click[0].offsetTop) {
          positionY = $click[0].offsetTop + $click.height() + space;
          tailY = positionY - $tail.height() / 2 ;
          tailRotation = 45;
        }

        // If popup is outside left edge, position left
        if (positionX < 0) {
          positionX = 0;
        }

        // If popup is outside right edge, position right
        if (positionX + popupWidth > $container.width()) {
          positionX = $container.width() - popupWidth;
        }

        // Special cases such as corner clicks, or close to an edge, they override X and Y positions if met
        if (clickNearTop && (clickNearLeft || clickNearRight)) {
          positionX = $click[0].offsetLeft + (clickNearLeft ? $click.width() : -popupWidth);
          positionY = $click[0].offsetTop + $click.height();
          disableTail = true;
        }
        else if (clickNearBottom && (clickNearLeft || clickNearRight)) {
          positionX = $click[0].offsetLeft + (clickNearLeft ? $click.width() : -popupWidth);
          positionY = $click[0].offsetTop - popupHeight;
          disableTail = true;
        }
        else if (!clickNearTop && !clickNearBottom) {
          if (clickNearLeft || clickNearRight) {
            positionY = $click[0].offsetTop - popupHeight / 2 + $click.width() / 2;
            positionX = $click[0].offsetLeft + (clickNearLeft ? $click.width() + space : -popupWidth + -space);
            // Make sure this does not position the popup off screen
            if (positionX < 0) {
              positionX = 0;
              disableTail = true;
            }
            else {
              tailX = positionX + (clickNearLeft ? - $tail.width() / 2 : popupWidth - $tail.width() / 2);
              tailY = positionY + popupHeight / 2 - $tail.height() / 2;
              tailRotation = (clickNearLeft ? 315 : 135);
            }
          }
        }

        // Contain popup from overflowing bottom edge
        if (positionY + popupHeight > $container.height()) {
          positionY = $container.height() - popupHeight;

          if (popupHeight > $container.height() - ($click[0].offsetTop + $click.height() + space)) {
            disableTail = true;
          }
        }
      }
      else {
        disableTail = true;
      }

      // Contain popup from ovreflowing top edge
      if (positionY < 0) {
        positionY = 0;
      }

      $element.css({top: positionY, left: positionX});
      $tail.css({top: tailY, left: tailX});

      if (!disableTail) {
        $tail.css({
          'left': tailX,
          'top': tailY,
          'transform': 'rotate(' + tailRotation + 'deg)'
        }).show();
      }
      else {
        $tail.hide();
      }
    };

    /**
     * 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;
      }

      // If this element is shown in the popup, we can't set width to 100%,
      // since it already has a width set in CSS
      var isFeedbackPopup = $element.hasClass('h5p-question-popup');

      // Get natural element height
      var $tmp = $element.clone()
        .css({
          'position': 'absolute',
          'max-height': 'none',
          'width': isFeedbackPopup ? '' : '100%'
        })
        .appendTo($element.parent());

      // Need to take margins into account when calculating available space
      var sideMargins = parseFloat($element.css('margin-left'))
        + parseFloat($element.css('margin-right'));
      var tmpElWidth = $tmp.css('width') ? $tmp.css('width') : '100%';
      $tmp.css('width', 'calc(' + tmpElWidth + ' - ' + sideMargins + 'px)');

      // 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
        showSection(sections.buttons);

        // Resize buttons after resizing button section
        setTimeout(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 () {
      // If no buttons section, return
      if (sections.buttons === undefined) {
        return;
      }

      // 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;
        }
      }

      var animationTimer = 150;
      if (sections.feedback && sections.feedback.$element.hasClass('h5p-question-popup')) {
        animationTimer = 0;
      }

      if (numToHide === sections.buttons.$element.children().length) {
        // All buttons are going to be hidden. Hide container using transition.
        hideSection(sections.buttons);
        // Detach buttons
        hideButtons(relocateFocus);
      }
      else {
        hideButtons(relocateFocus);

        // Show button section
        if (!sections.buttons.$element.is(':empty')) {
          showSection(sections.buttons);
          setElementHeight(sections.buttons.$element);

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

        // 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;
      }

      var go = function () {
        // Don't do anything if button elements are not visible yet
        if (!sections.buttons.$element.is(':visible')) {
          return;
        }

        // Width of all buttons
        var buttonsWidth = {
          max: 0,
          min: 0,
          current: 0
        };

        for (var i in buttons) {
          var button = buttons[i];
          if (button.isVisible) {
            setButtonWidth(buttons[i]);
            buttonsWidth.max += button.width.max;
            buttonsWidth.min += button.width.min;
            buttonsWidth.current += button.isTruncated ? button.width.min : button.width.max;
          }
        }

        var makeButtonsFit = function (availableWidth) {
          if (buttonsWidth.max < availableWidth) {
            // It is room for everyone on the right side of the score bar (without truncating)
            if (buttonsWidth.max !== buttonsWidth.current) {
              // Need to make everyone big
              restoreButtonLabels(buttonsWidth.current, availableWidth);
            }
            return true;
          }
          else if (buttonsWidth.min < availableWidth) {
            // Is it room for everyone on the right side of the score bar with truncating?
            if (buttonsWidth.current > availableWidth) {
              removeButtonLabels(buttonsWidth.current, availableWidth);
            }
            else {
              restoreButtonLabels(buttonsWidth.current, availableWidth);
            }
            return true;
          }
          return false;
        };

        toggleFullWidthScorebar(false);

        var buttonSectionWidth = Math.floor(sections.buttons.$element.width()) - 1;

        if (!makeButtonsFit(buttonSectionWidth)) {
          // If we get here we need to wrap:
          toggleFullWidthScorebar(true);
          buttonSectionWidth = Math.floor(sections.buttons.$element.width()) - 1;
          makeButtonsFit(buttonSectionWidth);
        }
      };

      // If visible, resize right away
      if (sections.buttons.$element.is(':visible')) {
        go();
      }
      else { // If not visible, try on the next tick
        // Clear button truncation timer if within a button truncation function
        if (buttonTruncationTimer) {
          clearTimeout(buttonTruncationTimer);
        }
        buttonTruncationTimer = setTimeout(function () {
          buttonTruncationTimer = undefined;
          go();
        }, 0);
      }
    };

    var toggleFullWidthScorebar = function (enabled) {
      if (sections.scorebar &&
          sections.scorebar.$element &&
          sections.scorebar.$element.hasClass('h5p-question-visible')) {
        sections.buttons.$element.addClass('has-scorebar');
        sections.buttons.$element.toggleClass('wrap', enabled);
        sections.scorebar.$element.toggleClass('full-width', enabled);
      }
      else {
        sections.buttons.$element.removeClass('has-scorebar');
      }
    };

    /**
     * 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];
        var button = buttons[buttonId];
        if (!button.isTruncated && button.isVisible) {
          var $button = button.$element;
          buttonsWidth -= button.width.max - button.width.min;

          // Remove label
          button.$element.attr('aria-label', $button.text()).html('').addClass('truncated');
          button.isTruncated = true;
          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];
        var button = buttons[buttonId];
        if (button.isTruncated && button.isVisible) {
          // Calculate new total width of buttons with a static pixel for consistency cross-browser
          buttonsWidth += button.width.max - button.width.min + 1;

          if (buttonsWidth > maxButtonsWidth) {
            return;
          }
          // Restore label
          button.$element.html(button.text);
          button.$element.removeClass('truncated');
          button.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;
    };

    /**
     * Show a section
     * @param {Object} section
     */
    var showSection = function (section) {
      section.$element.addClass('h5p-question-visible');
      section.isVisible = true;
    };

    /**
     * Hide a section
     * @param {Object} section
     */
    var hideSection = function (section) {
      section.$element.css('max-height', '');
      section.isVisible = false;

      setTimeout(function () {
        // Only hide if section hasn't been set to visible in the meantime
        if (!section.isVisible) {
          section.$element.removeClass('h5p-question-visible');
        }
      }, 150);
    };

    /**
     * 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.playback) {
        params.params.playback.autoplay = false;
      }

      // Never fit to wrapper
      if (!params.params.visuals) {
        params.params.visuals = {};
      }
      params.params.visuals.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 {string} [options.title] Hover text
     * @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),
        title: (options.title === undefined ? '' : options.title),
        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.on('load', determineImgWidth);
        }

        // Skip adding zoom functionality
        return;
      }

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

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

    /**
     * Remove feedback
     *
     * @return {H5P.Question}
     */
    self.removeFeedback = function () {

      clearTimeout(feedbackTransitionTimer);

      if (sections.feedback && showFeedback) {

        showFeedback = false;

        // Hide feedback & scorebar
        hideSection(sections.scorebar);
        hideSection(sections.feedback);

        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.$element.children().detach();
            sections.scorebar.$element.children().detach();

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

        if ($wrapper) {
          $wrapper.find('.h5p-question-feedback-tail').remove();
        }
      }

      return self;
    };

    /**
     * Set feedback message.
     *
     * @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
     * @param {object} [popupSettings] Extra settings for popup feedback
     * @param {boolean} [popupSettings.showAsPopup] Should the feedback display as popup?
     * @param {string} [popupSettings.closeText] Translation for close button text
     * @param {object} [popupSettings.click] Element representing where user clicked on screen
     */
    self.setFeedback = function (content, score, maxScore, scoreBarLabel, helpText, popupSettings, scoreExplanationButtonLabel) {
      // Feedback is disabled
      if (behaviour.disableFeedback) {
        return self;
      }

      // Need to toggle buttons right away to avoid flickering/blinking
      // Note: This means content types should invoke hide/showButton before setFeedback
      toggleButtons();

      clickElement = (popupSettings != null && popupSettings.click != null ? popupSettings.click : null);
      clearTimeout(feedbackTransitionTimer);

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

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

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

      var $scorebar = $('<div>', {
        'class': 'h5p-question-scorebar-container'
      });
      if (scoreBar === undefined) {
        scoreBar = JoubelUI.createScoreBar(maxScore, scoreBarLabel, helpText, scoreExplanationButtonLabel);
      }
      scoreBar.appendTo($scorebar);

      $feedbackContent.toggleClass('has-content', content !== undefined && content.length > 0);

      // Feedback for readspeakers
      if (!behaviour.disableReadSpeaker && scoreBarLabel) {
        self.read(scoreBarLabel.replace(':num', score).replace(':total', maxScore) + '. ' + (content ? content : ''));
      }

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

      showSection(sections.feedback);
      showSection(sections.scorebar);

      resizeButtons();

      if (popupSettings != null && popupSettings.showAsPopup == true) {
        makeFeedbackPopup(popupSettings.closeText);
        scoreBar.setScore(score);
      }
      else {
        // Show feedback section
        feedbackTransitionTimer = setTimeout(function () {
          setElementHeight(sections.feedback.$element);
          setElementHeight(sections.scorebar.$element);
          sectionsIsTransitioning = true;

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

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

      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).addClass('has-content');

        // Make sure the height is correct
        setElementHeight(sections.feedback.$element);

        // Need to trigger resize when feedback has finished transitioning
        setTimeout(self.trigger.bind(self, 'resize'), 150);
      }

      return self;
    };

    /**
     * Set the content of the explanation / feedback panel
     *
     * @param {Object} data
     * @param {string} data.correct
     * @param {string} data.wrong
     * @param {string} data.text
     * @param {string} title Title for explanation panel
     *
     * @return {H5P.Question}
     */
    self.setExplanation = function (data, title) {
      if (data) {
        var explainer = new H5P.Question.Explainer(title, data);

        if (sections.explanation) {
          // Update section
          update('explanation', explainer.getElement());
        }
        else {
          register('explanation', explainer.getElement());

          if (initialized && $wrapper) {
            insert(self.order, 'explanation', sections, $wrapper);
          }
        }
      }
      else if (sections.explanation) {
        // Hide explanation section
        sections.explanation.$element.children().detach();
      }

      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,
        isVisible: false
      };
      // The button might be <button> or <a>
      // (dependent on options.href set or not)
      var isAnchorTag = (options.href !== undefined);
      var $e = buttons[id].$element = JoubelUI.createButton($.extend({
        'class': 'h5p-question-' + id,
        html: text,
        title: text,
        on: {
          click: function (event) {
            handleButtonClick();
            if (isAnchorTag) {
              event.preventDefault();
            }
          }
        }
      }, options));
      buttonOrder.push(id);

      // The button might be <button> or <a>. If <a>, the space key is not
      // triggering the click event, must therefore handle this here:
      if (isAnchorTag) {
        $e.on('keypress', function (event) {
          if (event.which === 32) { // Space
            handleButtonClick();
            event.preventDefault();
          }
        });
      }

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

      return self;
    };

    var setButtonWidth = function (button) {
      var $button = button.$element;
      var $tmp = $button.clone()
        .css({
          'position': 'absolute',
          'white-space': 'nowrap',
          'max-width': 'none'
        }).removeClass('truncated')
        .html(button.text)
        .appendTo($button.parent());

      // Calculate max width (button including text)
      button.width = {
        max: Math.ceil($tmp.outerWidth() + parseFloat($tmp.css('margin-left')) + parseFloat($tmp.css('margin-right')))
      };

      // Calculate min width (truncated, icon only)
      $tmp.html('').addClass('truncated');
      button.width.min = Math.ceil($tmp.outerWidth() + parseFloat($tmp.css('margin-left')) + parseFloat($tmp.css('margin-right')));
      $tmp.remove();
    };

    /**
     * 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) {
      var aboutToBeHidden = existsInArray(id, 'id', buttonsToHide) !== -1;
      if (buttons[id] === undefined || (buttons[id].isVisible === true && !aboutToBeHidden)) {
        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) {
      var aboutToBeShown = existsInArray(id, 'id', buttonsToShow) !== -1;
      if (buttons[id] === undefined || (buttons[id].isVisible === false && !aboutToBeShown)) {
        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++) {
          var button = buttons[buttonOrder[i]];
          if (button && button.isVisible) {
            // Give that button focus
            button.$element.focus();
            break;
          }
        }
      }
      else if (buttons[id] && buttons[id].$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);
      }

      // Re-position feedback popup if in use
      var $element = sections.feedback;
      var $click = clickElement;

      if ($element != null && $element.$element != null && $click != null && $click.$element != null) {
        setTimeout(function () {
          positionFeedbackPopup($element.$element, $click.$element);
        }, 10);
      }

      resizeButtons();
    });
  }

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

  /**
   * Determine the overall feedback to display for the question.
   * Returns empty string if no matching range is found.
   *
   * @param {Object[]} feedbacks
   * @param {number} scoreRatio
   * @return {string}
   */
  Question.determineOverallFeedback = function (feedbacks, scoreRatio) {
    scoreRatio = Math.floor(scoreRatio * 100);

    for (var i = 0; i < feedbacks.length; i++) {
      var feedback = feedbacks[i];
      var hasFeedback = (feedback.feedback !== undefined && feedback.feedback.trim().length !== 0);

      if (feedback.from <= scoreRatio && feedback.to >= scoreRatio && hasFeedback) {
        return feedback.feedback;
      }
    }

    return '';
  };

  return Question;
})(H5P.jQuery, H5P.EventDispatcher, H5P.JoubelUI);
;
H5P.Question.Explainer = (function ($) {
  /**
   * Constructor
   *
   * @class
   * @param {string} title
   * @param {array} explanations
   */
  function Explainer(title, explanations) {
    var self = this;

    /**
     * Create the DOM structure
     */
    var createHTML = function () {
      self.$explanation = $('<div>', {
        'class': 'h5p-question-explanation-container'
      });

      // Add title:
      $('<div>', {
        'class': 'h5p-question-explanation-title',
        role: 'heading',
        html: title,
        appendTo: self.$explanation
      });

      var $explanationList = $('<ul>', {
        'class': 'h5p-question-explanation-list',
        appendTo: self.$explanation
      });

      for (var i = 0; i < explanations.length; i++) {
        var feedback = explanations[i];
        var $explanationItem = $('<li>', {
          'class': 'h5p-question-explanation-item',
          appendTo: $explanationList
        });

        var $content = $('<div>', {
          'class': 'h5p-question-explanation-status'
        });

        if (feedback.correct) {
          $('<span>', {
            'class': 'h5p-question-explanation-correct',
            html: feedback.correct,
            appendTo: $content
          });
        }
        if (feedback.wrong) {
          $('<span>', {
            'class': 'h5p-question-explanation-wrong',
            html: feedback.wrong,
            appendTo: $content
          });
        }
        $content.appendTo($explanationItem);

        if (feedback.text) {
          $('<div>', {
            'class': 'h5p-question-explanation-text',
            html: feedback.text,
            appendTo: $explanationItem
          });
        }
      }
    };

    createHTML();

    /**
     * Return the container HTMLElement
     *
     * @return {HTMLElement}
     */
    self.getElement = function () {
      return self.$explanation;
    };
  }

  return Explainer;

})(H5P.jQuery);
;
(function (Question) {

  /**
   * Makes it easy to add animated score points for your question type.
   *
   * @class H5P.Question.ScorePoints
   */
  Question.ScorePoints = function () {
    var self = this;

    var elements = [];
    var showElementsTimer;

    /**
     * Create the element that displays the score point element for questions.
     *
     * @param {boolean} isCorrect
     * @return {HTMLElement}
     */
    self.getElement = function (isCorrect) {
      var element = document.createElement('div');
      element.classList.add(isCorrect ? 'h5p-question-plus-one' : 'h5p-question-minus-one');
      element.classList.add('h5p-question-hidden-one');
      elements.push(element);

      // Schedule display animation of all added elements
      if (showElementsTimer) {
        clearTimeout(showElementsTimer);
      }
      showElementsTimer = setTimeout(showElements, 0);

      return element;
    };

    /**
     * @private
     */
    var showElements = function () {
      // Determine delay between triggering animations
      var delay = 0;
      var increment = 150;
      var maxTime = 1000;

      if (elements.length && elements.length > Math.ceil(maxTime / increment)) {
        // Animations will run for more than ~1 second, reduce it.
        increment = maxTime / elements.length;
      }

      for (var i = 0; i < elements.length; i++) {
        // Use timer to trigger show
        setTimeout(showElement(elements[i]), delay);

        // Increse delay for next element
        delay += increment;
      }
    };

    /**
     * Trigger transition animation for the given element
     *
     * @private
     * @param {HTMLElement} element
     * @return {function}
     */
    var showElement = function (element) {
      return function () {
        element.classList.remove('h5p-question-hidden-one');
      };
    };
  };

})(H5P.Question);
;
H5P.TrueFalse = (function ($, Question) {
  'use strict';

  // Maximum score for True False
  var MAX_SCORE = 1;

  /**
   * Enum containing the different states this content type can exist in
   *
   * @enum
   */
  var State = Object.freeze({
    ONGOING: 1,
    FINISHED_WRONG: 2,
    FINISHED_CORRECT: 3,
    INTERNAL_SOLUTION: 4,
    EXTERNAL_SOLUTION: 5
  });

  /**
   * Button IDs
   */
  var Button = Object.freeze({
    CHECK: 'check-answer',
    TRYAGAIN: 'try-again',
    SHOW_SOLUTION: 'show-solution'
  });

  /**
   * Initialize module.
   *
   * @class H5P.TrueFalse
   * @extends H5P.Question
   * @param {Object} options
   * @param {number} id Content identification
   * @param {Object} contentData Task specific content data
   */
  function TrueFalse(options, id, contentData) {
    var self = this;

    // Inheritance
    Question.call(self, 'true-false');

    var params = $.extend(true, {
      question: 'No question text provided',
      correct: 'true',
      l10n: {
        trueText: 'True',
        falseText: 'False',
        score: 'You got @score of @total points',
        checkAnswer: 'Check',
        showSolutionButton: 'Show solution',
        tryAgain: 'Retry',
        wrongAnswerMessage: 'Wrong answer',
        correctAnswerMessage: 'Correct answer',
        scoreBarLabel: 'You got :num out of :total points',
        a11yCheck: 'Check the answers. The responses will be marked as correct, incorrect, or unanswered.',
        a11yShowSolution: 'Show the solution. The task will be marked with its correct solution.',
        a11yRetry: 'Retry the task. Reset all responses and start the task over again.',
      },
      behaviour: {
        enableRetry: true,
        enableSolutionsButton: true,
        enableCheckButton: true,
        confirmCheckDialog: false,
        confirmRetryDialog: false,
        autoCheck: false
      }
    }, options);

    // Counter used to create unique id for this question
    TrueFalse.counter = (TrueFalse.counter === undefined ? 0 : TrueFalse.counter + 1);

    // A unique ID is needed for aria label
    var domId = 'h5p-tfq' + H5P.TrueFalse.counter;

    // saves the content id
    this.contentId = id;
    this.contentData = contentData;

    // The radio group
    var answerGroup = new H5P.TrueFalse.AnswerGroup(domId, params.correct, params.l10n);
    if (contentData.previousState !== undefined && contentData.previousState.answer !== undefined) {
      answerGroup.check(contentData.previousState.answer);
    }
    answerGroup.on('selected', function () {
      self.triggerXAPI('interacted');

      if (params.behaviour.autoCheck) {
        checkAnswer();
        triggerXAPIAnswered();
      }
    });


    /**
     * Create the answers
     *
     * @method createAnswers
     * @private
     * @return {H5P.jQuery}
     */
    var createAnswers = function () {
      return answerGroup.getDomElement();
    };

    /**
     * Register buttons
     *
     * @method registerButtons
     * @private
     */
    var registerButtons = function () {
      var $content = $('[data-content-id="' + self.contentId + '"].h5p-content');
      var $containerParents = $content.parents('.h5p-container');

      // select find container to attach dialogs to
      var $container;
      if($containerParents.length !== 0) {
        // use parent highest up if any
        $container = $containerParents.last();
      }
      else if($content.length !== 0){
        $container = $content;
      }
      else  {
        $container = $(document.body);
      }

      // Show solution button
      if (params.behaviour.enableSolutionsButton === true) {
        self.addButton(Button.SHOW_SOLUTION, params.l10n.showSolutionButton, function () {
          self.showSolutions(true);
        }, false, {
          'aria-label': params.l10n.a11yShowSolution,
        });
      }

      // Check button
      if (!params.behaviour.autoCheck && params.behaviour.enableCheckButton) {
        self.addButton(Button.CHECK, params.l10n.checkAnswer, function () {
          checkAnswer();
          triggerXAPIAnswered();
        }, true, {
          'aria-label': params.l10n.a11yCheck
        }, {
          confirmationDialog: {
            enable: params.behaviour.confirmCheckDialog,
            l10n: params.confirmCheck,
            instance: self,
            $parentElement: $container
          }
        });
      }

      // Try again button
      if (params.behaviour.enableRetry === true) {
        self.addButton(Button.TRYAGAIN, params.l10n.tryAgain, function () {
          self.resetTask();
        }, true, {
          'aria-label': params.l10n.a11yRetry,
        }, {
          confirmationDialog: {
            enable: params.behaviour.confirmRetryDialog,
            l10n: params.confirmRetry,
            instance: self,
            $parentElement: $container
          }
        });
      }

      toggleButtonState(State.ONGOING);
    };

    /**
     * Creates and triggers the xAPI answered event
     *
     * @method triggerXAPIAnswered
     * @private
     * @fires xAPIEvent
     */
    var triggerXAPIAnswered = function () {
      var xAPIEvent = self.createXAPIEventTemplate('answered');
      addQuestionToXAPI(xAPIEvent);
      addResponseToXAPI(xAPIEvent);
      self.trigger(xAPIEvent);
    };

    /**
     * Add the question itself to the definition part of an xAPIEvent
     *
     * @method addQuestionToXAPI
     * @param {XAPIEvent} xAPIEvent
     * @private
     */
    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 = 'true-false';
      definition.correctResponsesPattern = [getCorrectAnswer()];
    };

    /**
     * Returns the correct answer
     *
     * @method getCorrectAnswer
     * @private
     * @return {String}
     */
    var getCorrectAnswer = function () {
      return (params.correct === 'true' ? 'true' : 'false');
    };

    /**
     * Returns the wrong answer
     *
     * @method getWrongAnswer
     * @private
     * @return {String}
     */
    var getWrongAnswer = function () {
      return (params.correct === 'false' ? 'true' : 'false');
    };

    /**
     * Add the response part to an xAPI event
     *
     * @method addResponseToXAPI
     * @private
     * @param {H5P.XAPIEvent} xAPIEvent
     *  The xAPI event we will add a response to
     */
    var addResponseToXAPI = function(xAPIEvent) {
      var isCorrect = answerGroup.isCorrect();
      xAPIEvent.setScoredResult(isCorrect ? MAX_SCORE : 0, MAX_SCORE, self, true, isCorrect);
      xAPIEvent.data.statement.result.response = (isCorrect ? getCorrectAnswer() : getWrongAnswer());
    };

    /**
     * Toggles btton visibility dependent of current state
     *
     * @method toggleButtonVisibility
     * @private
     * @param  {String}    buttonId
     * @param  {Boolean}   visible
     */
    var toggleButtonVisibility = function (buttonId, visible) {
      if (visible === true) {
        self.showButton(buttonId);
      }
      else {
        self.hideButton(buttonId);
      }
    };

    /**
     * Toggles buttons state
     *
     * @method toggleButtonState
     * @private
     * @param  {String}          state
     */
    var toggleButtonState = function (state) {
      toggleButtonVisibility(Button.SHOW_SOLUTION, state === State.FINISHED_WRONG);
      toggleButtonVisibility(Button.CHECK, state === State.ONGOING);
      toggleButtonVisibility(Button.TRYAGAIN, state === State.FINISHED_WRONG || state === State.INTERNAL_SOLUTION);
    };

    /**
     * Check if answer is correct or wrong, and update visuals accordingly
     *
     * @method checkAnswer
     * @private
     */
    var checkAnswer = function () {
      // Create feedback widget
      var score = self.getScore();
      var scoreText;

      toggleButtonState(score === MAX_SCORE ? State.FINISHED_CORRECT : State.FINISHED_WRONG);

      if (score === MAX_SCORE && params.behaviour.feedbackOnCorrect) {
        scoreText = params.behaviour.feedbackOnCorrect;
      }
      else if (score === 0 && params.behaviour.feedbackOnWrong) {
        scoreText = params.behaviour.feedbackOnWrong;
      }
      else {
        scoreText = params.l10n.score;
      }
      // Replace relevant variables:
      scoreText = scoreText.replace('@score', score).replace('@total', MAX_SCORE);
      self.setFeedback(scoreText, score, MAX_SCORE, params.l10n.scoreBarLabel);
      answerGroup.reveal();
    };

    /**
     * Registers this question type's DOM elements before they are attached.
     * Called from H5P.Question.
     *
     * @method registerDomElements
     * @private
     */
    self.registerDomElements = function () {
      var self = this;

      // Check for task media
      var media = params.media;
      if (media && media.type && media.type.library) {
        media = media.type;
        var type = media.library.split(' ')[0];
        if (type === 'H5P.Image') {
          if (media.params.file) {
            // Register task image
            self.setImage(media.params.file.path, {
              disableImageZooming: params.media.disableImageZooming || false,
              alt: media.params.alt
            });
          }
        }
        else if (type === 'H5P.Video') {
          if (media.params.sources) {
            // Register task video
            self.setVideo(media);
          }
        }
      }

      // Add task question text
      self.setIntroduction('<div id="' + domId + '">' + params.question + '</div>');

      // Register task content area
      self.$content = createAnswers();
      self.setContent(self.$content);

      // ... and buttons
      registerButtons();
    };

    /**
     * Implements resume (save content state)
     *
     * @method getCurrentState
     * @public
     * @returns {object} object containing answer
     */
    self.getCurrentState = function () {
      return {answer: answerGroup.getAnswer()};
    };

    /**
     * Used for contracts.
     * Checks if the parent program can proceed. Always true.
     *
     * @method getAnswerGiven
     * @public
     * @returns {Boolean} true
     */
    self.getAnswerGiven = function () {
      return answerGroup.hasAnswered();
    };

    /**
     * Used for contracts.
     * Checks the current score for this task.
     *
     * @method getScore
     * @public
     * @returns {Number} The current score.
     */
    self.getScore = function () {
      return answerGroup.isCorrect() ? MAX_SCORE : 0;
    };

    /**
     * Used for contracts.
     * Checks the maximum score for this task.
     *
     * @method getMaxScore
     * @public
     * @returns {Number} The maximum score.
     */
    self.getMaxScore = function () {
      return MAX_SCORE;
    };

    /**
     * Get title of task
     *
     * @method getTitle
     * @public
     * @returns {string} title
     */
    self.getTitle = function () {
      return H5P.createTitle((self.contentData && self.contentData.metadata && self.contentData.metadata.title) ? self.contentData.metadata.title : 'True-False');
    };

    /**
     * Used for contracts.
     * Show the solution.
     *
     * @method showSolutions
     * @public
     */
    self.showSolutions = function (internal) {
      checkAnswer();
      answerGroup.showSolution();
      toggleButtonState(internal ? State.INTERNAL_SOLUTION : State.EXTERNAL_SOLUTION);
    };

    /**
     * Used for contracts.
     * Resets the complete task back to its' initial state.
     *
     * @method resetTask
     * @public
     */
    self.resetTask = function () {
      answerGroup.reset();
      self.removeFeedback();
      toggleButtonState(State.ONGOING);
    };

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

    /**
     * Add the question itself to the definition part of an xAPIEvent
     */
    self.addQuestionToXAPI = function(xAPIEvent) {
      var definition = xAPIEvent.getVerifiedStatementValue(['object', 'definition']);
      $.extend(definition, this.getxAPIDefinition());
    };

    /**
     * Generate xAPI object definition used in xAPI statements.
     * @return {Object}
     */
    self.getxAPIDefinition = function () {
      var definition = {};
      definition.interactionType = 'true-false';
      definition.type = 'http://adlnet.gov/expapi/activities/cmi.interaction';
      definition.description = {
        'en-US': $('<div>' + params.question + '</div>').text()
      };
      definition.correctResponsesPattern = [getCorrectAnswer()];

      return definition;
    };

    /**
     * Add the response part to an xAPI event
     *
     * @param {H5P.XAPIEvent} xAPIEvent
     *  The xAPI event we will add a response to
     */
    self.addResponseToXAPI = function (xAPIEvent) {
      var isCorrect = answerGroup.isCorrect();
      var rawUserScore = isCorrect ? MAX_SCORE : 0;
      var currentResponse = '';

      xAPIEvent.setScoredResult(rawUserScore, MAX_SCORE, self, true, isCorrect);

      if(self.getCurrentState().answer !== undefined) {
        currentResponse += answerGroup.isCorrect() ? getCorrectAnswer() : getWrongAnswer();
      }
      xAPIEvent.data.statement.result.response = currentResponse;
    };
   }

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

  return TrueFalse;
})(H5P.jQuery, H5P.Question);
;
H5P.TrueFalse.AnswerGroup = (function ($, EventDispatcher) {
  'use strict';

  /**
   * Initialize module.
   *
   * @class H5P.TrueFalse.AnswerGroup
   * @extends H5P.EventDispatcher
   * @param {String} domId Id for label
   * @param {String} correctOption Correct option ('true' or 'false')
   * @param {Object} l10n Object containing all interface translations
   */
  function AnswerGroup(domId, correctOption, l10n) {
    var self = this;

    EventDispatcher.call(self);

    var $answers = $('<div>', {
      'class': 'h5p-true-false-answers',
      role: 'radiogroup',
      'aria-labelledby': domId
    });

    var answer;
    var trueAnswer = new H5P.TrueFalse.Answer(l10n.trueText, l10n.correctAnswerMessage, l10n.wrongAnswerMessage);
    var falseAnswer = new H5P.TrueFalse.Answer(l10n.falseText, l10n.correctAnswerMessage, l10n.wrongAnswerMessage);
    var correctAnswer = (correctOption === 'true' ? trueAnswer : falseAnswer);
    var wrongAnswer = (correctOption === 'false' ? trueAnswer : falseAnswer);

    // Handle checked
    var handleChecked = function (newAnswer, other) {
      return function () {
        answer = newAnswer;
        other.uncheck();
        self.trigger('selected');
      };
    };
    trueAnswer.on('checked', handleChecked(true, falseAnswer));
    falseAnswer.on('checked', handleChecked(false, trueAnswer));

    // Handle switches (using arrow keys)
    var handleInvert = function (newAnswer, other) {
      return function () {
        answer = newAnswer;
        other.check();
        self.trigger('selected');
      };
    };
    trueAnswer.on('invert', handleInvert(false, falseAnswer));
    falseAnswer.on('invert', handleInvert(true, trueAnswer));

    // Handle tabbing
    var handleTabable = function(other, tabable) {
      return function () {
        // If one of them are checked, that one should get tabfocus
        if (!tabable || !self.hasAnswered() || other.isChecked()) {
          other.tabable(tabable);
        }
      };
    };
    // Need to remove tabIndex on the other alternative on focus
    trueAnswer.on('focus', handleTabable(falseAnswer, false));
    falseAnswer.on('focus', handleTabable(trueAnswer, false));
    // Need to make both alternatives tabable on blur:
    trueAnswer.on('blur', handleTabable(falseAnswer, true));
    falseAnswer.on('blur', handleTabable(trueAnswer, true));

    $answers.append(trueAnswer.getDomElement());
    $answers.append(falseAnswer.getDomElement());

    /**
     * Get hold of the DOM element representing this thingy
     * @method getDomElement
     * @return {jQuery}
     */
    self.getDomElement = function () {
      return $answers;
    };

    /**
     * Programatic check
     * @method check
     * @param  {[type]} answer [description]
     */
    self.check = function (answer) {
      if (answer) {
        trueAnswer.check();
      }
      else {
        falseAnswer.check();
      }
    };

    /**
     * Return current answer
     * @method getAnswer
     * @return {Boolean} undefined if no answer if given
     */
    self.getAnswer = function () {
      return answer;
    };

    /**
     * Check if user has answered question yet
     * @method hasAnswered
     * @return {Boolean}
     */
    self.hasAnswered = function () {
      return answer !== undefined;
    };

    /**
     * Is answer correct?
     * @method isCorrect
     * @return {Boolean}
     */
    self.isCorrect = function () {
      return correctAnswer.isChecked();
    };

    /**
     * Enable user input
     *
     * @method enable
     */
    self.enable = function () {
      trueAnswer.enable().tabable(true);
      falseAnswer.enable();
    };

    /**
     * Disable user input
     *
     * @method disable
     */
    self.disable = function () {
      trueAnswer.disable();
      falseAnswer.disable();
    };

    /**
     * Reveal correct/wrong answer
     *
     * @method reveal
     */
    self.reveal = function () {
      if (self.hasAnswered()) {
        if (self.isCorrect()) {
          correctAnswer.markCorrect();
        }
        else {
          wrongAnswer.markWrong();
        }
      }

      self.disable();
    };

    /**
     * Reset task
     * @method reset
     */
    self.reset = function () {
      trueAnswer.reset();
      falseAnswer.reset();
      self.enable();
      answer = undefined;
    };

    /**
     * Show the solution
     * @method showSolution
     * @return {[type]}
     */
    self.showSolution = function () {
      correctAnswer.markCorrect();
      wrongAnswer.unmark();
    };
  }

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

  return AnswerGroup;
})(H5P.jQuery, H5P.EventDispatcher);
;
H5P.TrueFalse.Answer = (function ($, EventDispatcher) {
  'use strict';

  var Keys = {
    ENTER: 13,
    SPACE: 32,
    LEFT_ARROW: 37,
    UP_ARROW: 38,
    RIGHT_ARROW: 39,
    DOWN_ARROW: 40
  };

  /**
   * Initialize module.
   *
   * @class H5P.TrueFalse.Answer
   * @extends H5P.EventDispatcher
   * @param {String} text Label
   * @param {String} correctMessage Message read by readspeaker when correct alternative is chosen
   * @param {String} wrongMessage Message read by readspeaker when wrong alternative is chosen
   */
  function Answer (text, correctMessage, wrongMessage) {
    var self = this;

    EventDispatcher.call(self);

    var checked = false;
    var enabled = true;

    var $answer = $('<div>', {
      'class': 'h5p-true-false-answer',
      role: 'radio',
      'aria-checked': false,
      html: text + '<span class="aria-label"></span>',
      tabindex: 0, // Tabable by default
      click: function (event) {
        // Handle left mouse (or tap on touch devices)
        if (event.which === 1) {
          self.check();
        }
      },
      keydown: function (event) {
        if (!enabled) {
          return;
        }
        if ([Keys.SPACE, Keys.ENTER].indexOf(event.keyCode) !== -1) {
          self.check();
        }
        else if ([Keys.LEFT_ARROW, Keys.UP_ARROW, Keys.RIGHT_ARROW, Keys.DOWN_ARROW].indexOf(event.keyCode) !== -1) {
          self.uncheck();
          self.trigger('invert');
        }
      },
      focus: function () {
        self.trigger('focus');
      },
      blur: function () {
        self.trigger('blur');
      }
    });

    var $ariaLabel = $answer.find('.aria-label');

    // A bug in Chrome 54 makes the :after icons (V and X) not beeing rendered.
    // Doing this in a timeout solves this
    // Might be removed when Chrome 56 is out
    var chromeBugFixer = function (callback) {
      setTimeout(function () {
        callback();
      }, 0);
    };

    /**
     * Return the dom element representing the alternative
     *
     * @public
     * @method getDomElement
     * @return {H5P.jQuery}
     */
    self.getDomElement = function () {
      return $answer;
    };

    /**
     * Unchecks the alternative
     *
     * @public
     * @method uncheck
     * @return {H5P.TrueFalse.Answer}
     */
    self.uncheck = function () {
      if (enabled) {
        $answer.blur();
        checked = false;
        chromeBugFixer(function () {
          $answer.attr('aria-checked', checked);
        });
      }
      return self;
    };

    /**
     * Set tabable or not
     * @method tabable
     * @param  {Boolean} enabled
     * @return {H5P.TrueFalse.Answer}
     */
    self.tabable = function (enabled) {
      $answer.attr('tabIndex', enabled ? 0 : null);
      return self;
    };

    /**
     * Checks the alternative
     *
     * @method check
     * @return {H5P.TrueFalse.Answer}
     */
    self.check = function () {
      if (enabled) {
        checked = true;
        chromeBugFixer(function () {
          $answer.attr('aria-checked', checked);
        });
        self.trigger('checked');
        $answer.focus();
      }
      return self;
    };

    /**
     * Is this alternative checked?
     *
     * @method isChecked
     * @return {boolean}
     */
    self.isChecked = function () {
      return checked;
    };

    /**
     * Enable alternative
     *
     * @method enable
     * @return {H5P.TrueFalse.Answer}
     */
    self.enable = function () {
      $answer.attr({
        'aria-disabled': '',
        tabIndex: 0
      });
      enabled = true;

      return self;
    };

    /**
     * Disables alternative
     *
     * @method disable
     * @return {H5P.TrueFalse.Answer}
     */
    self.disable = function () {
      $answer.attr({
        'aria-disabled': true,
        tabIndex: null
      });
      enabled = false;

      return self;
    };

    /**
     * Reset alternative
     *
     * @method reset
     * @return {H5P.TrueFalse.Answer}
     */
    self.reset = function () {
      self.enable();
      self.uncheck();
      self.unmark();
      $ariaLabel.html('');

      return self;
    };

    /**
     * Marks this alternative as the wrong one
     *
     * @method markWrong
     * @return {H5P.TrueFalse.Answer}
     */
    self.markWrong = function () {
      chromeBugFixer(function () {
        $answer.addClass('wrong');
      });
      $ariaLabel.html('.' + wrongMessage);

      return self;
    };

    /**
     * Marks this alternative as the wrong one
     *
     * @method markCorrect
     * @return {H5P.TrueFalse.Answer}
     */
    self.markCorrect = function () {
      chromeBugFixer(function () {
        $answer.addClass('correct');
      });
      $ariaLabel.html('.' + correctMessage);

      return self;
    };

    self.unmark = function () {
      chromeBugFixer(function () {
        $answer.removeClass('wrong correct');
      });

      return self;
    };
  }

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

  return Answer;

})(H5P.jQuery, H5P.EventDispatcher);
;
(function(){var rsplit=function(string,regex){var result=regex.exec(string),retArr=new Array(),first_idx,last_idx,first_bit;while(result!=null){first_idx=result.index;last_idx=regex.lastIndex;if((first_idx)!=0){first_bit=string.substring(0,first_idx);retArr.push(string.substring(0,first_idx));string=string.slice(first_idx)}retArr.push(result[0]);string=string.slice(result[0].length);result=regex.exec(string)}if(!string==""){retArr.push(string)}return retArr},chop=function(string){return string.substr(0,string.length-1)},extend=function(d,s){for(var n in s){if(s.hasOwnProperty(n)){d[n]=s[n]}}};EJS=function(options){options=typeof options=="string"?{view:options}:options;this.set_options(options);if(options.precompiled){this.template={};this.template.process=options.precompiled;EJS.update(this.name,this);return }if(options.element){if(typeof options.element=="string"){var name=options.element;options.element=document.getElementById(options.element);if(options.element==null){throw 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element=="string"){element=document.getElementById(element)}if(options==null){_template=this;return function(object){EJS.prototype.update.call(_template,element,object)}}if(typeof options=="string"){params={};params.url=options;_template=this;params.onComplete=function(request){var object=eval(request.responseText);EJS.prototype.update.call(_template,element,object)};EJS.ajax_request(params)}else{element.innerHTML=this.render(options)}},out:function(){return this.template.out},set_options:function(options){this.type=options.type||EJS.type;this.cache=options.cache!=null?options.cache:EJS.cache;this.text=options.text||null;this.name=options.name||null;this.ext=options.ext||EJS.ext;this.extMatch=new RegExp(this.ext.replace(/\./,"."))}};EJS.endExt=function(path,match){if(!path){return null}match.lastIndex=0;return 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)
}
;
/*
 * flowplayer.js 3.2.12. The Flowplayer API
 *
 * Copyright 2009-2011 Flowplayer Oy
 *
 * This file is part of Flowplayer.
 *
 * Flowplayer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Flowplayer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Flowplayer.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Date: ${date}
 * Revision: ${revision}
 */
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/** @namespace H5P */
H5P.VideoYouTube = (function ($) {

  /**
   * YouTube video player for H5P.
   *
   * @class
   * @param {Array} sources Video files to use
   * @param {Object} options Settings for the player
   * @param {Object} l10n Localization strings
   */
  function YouTube(sources, options, l10n) {
    var self = this;

    var player;
    var playbackRate = 1;
    var id = 'h5p-youtube-' + numInstances;
    numInstances++;

    var $wrapper = $('<div/>');
    var $placeholder = $('<div/>', {
      id: id,
      text: l10n.loading
    }).appendTo($wrapper);

    // Optional placeholder
    // var $placeholder = $('<iframe id="' + id + '" type="text/html" width="640" height="360" src="https://www.youtube.com/embed/' + getId(sources[0].path) + '?enablejsapi=1&origin=' + encodeURIComponent(ORIGIN) + '&autoplay=' + (options.autoplay ? 1 : 0) + '&controls=' + (options.controls ? 1 : 0) + '&disabledkb=' + (options.controls ? 0 : 1) + '&fs=0&loop=' + (options.loop ? 1 : 0) + '&rel=0&showinfo=0&iv_load_policy=3" frameborder="0"></iframe>').appendTo($wrapper);

    /**
     * Use the YouTube API to create a new player
     *
     * @private
     */
    var create = function () {
      if (!$placeholder.is(':visible') || player !== undefined) {
        return;
      }

      if (window.YT === undefined) {
        // Load API first
        loadAPI(create);
        return;
      }
      if (YT.Player === undefined) {
        return;
      }

      var width = $wrapper.width();
      if (width < 200) {
        width = 200;
      }

      var loadCaptionsModule = true;

      var videoId = getId(sources[0].path);

      player = new YT.Player(id, {
        width: width,
        height: width * (9/16),
        videoId: videoId,
        playerVars: {
          origin: ORIGIN,
          autoplay: options.autoplay ? 1 : 0,
          controls: options.controls ? 1 : 0,
          disablekb: options.controls ? 0 : 1,
          fs: 0,
          playlist: options.loop ? videoId : undefined,
          rel: 0,
          showinfo: 0,
          iv_load_policy: 3,
          wmode: "opaque",
          start: options.startAt,
          playsinline: 1
        },
        events: {
          onReady: function () {
            self.trigger('ready');
            self.trigger('loaded');
          },
          onApiChange: function () {
            if (loadCaptionsModule) {
              loadCaptionsModule = false;

              // Always load captions
              player.loadModule('captions');
            }

            var trackList;
            try {
              // Grab tracklist from player
              trackList = player.getOption('captions', 'tracklist');
            }
            catch (err) {}
            if (trackList && trackList.length) {

              // Format track list into valid track options
              var trackOptions = [];
              for (var i = 0; i < trackList.length; i++) {
                trackOptions.push(new H5P.Video.LabelValue(trackList[i].displayName, trackList[i].languageCode));
              }

              // Captions are ready for loading
              self.trigger('captions', trackOptions);
            }
          },
          onStateChange: function (state) {
            if (state.data > -1 && state.data < 4) {

              // Fix for keeping playback rate in IE11
              if (H5P.Video.IE11_PLAYBACK_RATE_FIX && state.data === H5P.Video.PLAYING && playbackRate !== 1) {
                // YT doesn't know that IE11 changed the rate so it must be reset before it's set to the correct value
                player.setPlaybackRate(1);
                player.setPlaybackRate(playbackRate);
              }
              // End IE11 fix

              self.trigger('stateChange', state.data);
            }
          },
          onPlaybackQualityChange: function (quality) {
            self.trigger('qualityChange', quality.data);
          },
          onPlaybackRateChange: function (playbackRate) {
            self.trigger('playbackRateChange', playbackRate.data);
          },
          onError: function (error) {
            var message;
            switch (error.data) {
              case 2:
                message = l10n.invalidYtId;
                break;

              case 100:
                message = l10n.unknownYtId;
                break;

              case 101:
              case 150:
                message = l10n.restrictedYt;
                break;

              default:
                message = l10n.unknownError + ' ' + error.data;
                break;
            }
            self.trigger('error', message);
          }
        }
      });
    };

    /**
     * Indicates if the video must be clicked for it to start playing.
     * For instance YouTube videos on iPad must be pressed to start playing.
     *
     * @public
     */
    self.pressToPlay = navigator.userAgent.match(/iPad/i) ? true : false;

    /**
    * Appends the video player to the DOM.
    *
    * @public
    * @param {jQuery} $container
    */
    self.appendTo = function ($container) {
      $container.addClass('h5p-youtube').append($wrapper);
      create();
    };

    /**
     * Get list of available qualities. Not available until after play.
     *
     * @public
     * @returns {Array}
     */
    self.getQualities = function () {
      if (!player || !player.getAvailableQualityLevels) {
        return;
      }

      var qualities = player.getAvailableQualityLevels();
      if (!qualities.length) {
        return; // No qualities
      }

      // Add labels
      for (var i = 0; i < qualities.length; i++) {
        var quality = qualities[i];
        var label = (LABELS[quality] !== undefined ? LABELS[quality] : 'Unknown'); // TODO: l10n
        qualities[i] = {
          name: quality,
          label: LABELS[quality]
        };
      }

      return qualities;
    };

    /**
     * Get current playback quality. Not available until after play.
     *
     * @public
     * @returns {String}
     */
    self.getQuality = function () {
      if (!player || !player.getPlaybackQuality) {
        return;
      }

      var quality = player.getPlaybackQuality();
      return quality === 'unknown' ? undefined : quality;
    };

    /**
     * Set current playback quality. Not available until after play.
     * Listen to event "qualityChange" to check if successful.
     *
     * @public
     * @params {String} [quality]
     */
    self.setQuality = function (quality) {
      if (!player || !player.setPlaybackQuality) {
        return;
      }

      player.setPlaybackQuality(quality);
    };

    /**
     * Start the video.
     *
     * @public
     */
    self.play = function () {
      if (!player || !player.playVideo) {
        self.on('ready', self.play);
        return;
      }

      player.playVideo();
    };

    /**
     * Pause the video.
     *
     * @public
     */
    self.pause = function () {
      self.off('ready', self.play);
      if (!player || !player.pauseVideo) {
        return;
      }
      player.pauseVideo();
    };

    /**
     * Seek video to given time.
     *
     * @public
     * @param {Number} time
     */
    self.seek = function (time) {
      if (!player || !player.seekTo) {
        return;
      }

      player.seekTo(time, true);
    };

    /**
     * Get elapsed time since video beginning.
     *
     * @public
     * @returns {Number}
     */
    self.getCurrentTime = function () {
      if (!player || !player.getCurrentTime) {
        return;
      }

      return player.getCurrentTime();
    };

    /**
     * Get total video duration time.
     *
     * @public
     * @returns {Number}
     */
    self.getDuration = function () {
      if (!player || !player.getDuration) {
        return;
      }

      return player.getDuration();
    };

    /**
     * Get percentage of video that is buffered.
     *
     * @public
     * @returns {Number} Between 0 and 100
     */
    self.getBuffered = function () {
      if (!player || !player.getVideoLoadedFraction) {
        return;
      }

      return player.getVideoLoadedFraction() * 100;
    };

    /**
     * Turn off video sound.
     *
     * @public
     */
    self.mute = function () {
      if (!player || !player.mute) {
        return;
      }

      player.mute();
    };

    /**
     * Turn on video sound.
     *
     * @public
     */
    self.unMute = function () {
      if (!player || !player.unMute) {
        return;
      }

      player.unMute();
    };

    /**
     * Check if video sound is turned on or off.
     *
     * @public
     * @returns {Boolean}
     */
    self.isMuted = function () {
      if (!player || !player.isMuted) {
        return;
      }

      return player.isMuted();
    };

    /**
     * Return the video sound level.
     *
     * @public
     * @returns {Number} Between 0 and 100.
     */
    self.getVolume = function () {
      if (!player || !player.getVolume) {
        return;
      }

      return player.getVolume();
    };

    /**
     * Set video sound level.
     *
     * @public
     * @param {Number} level Between 0 and 100.
     */
    self.setVolume = function (level) {
      if (!player || !player.setVolume) {
        return;
      }

      player.setVolume(level);
    };

    /**
     * Get list of available playback rates.
     *
     * @public
     * @returns {Array} available playback rates
     */
    self.getPlaybackRates = function () {
      if (!player || !player.getAvailablePlaybackRates) {
        return;
      }

      var playbackRates = player.getAvailablePlaybackRates();
      if (!playbackRates.length) {
        return; // No rates, but the array should contain at least 1
      }

      return playbackRates;
    };

    /**
     * Get current playback rate.
     *
     * @public
     * @returns {Number} such as 0.25, 0.5, 1, 1.25, 1.5 and 2
     */
    self.getPlaybackRate = function () {
      if (!player || !player.getPlaybackRate) {
        return;
      }

      return player.getPlaybackRate();
    };

    /**
     * Set current playback rate.
     * Listen to event "playbackRateChange" to check if successful.
     *
     * @public
     * @params {Number} suggested rate that may be rounded to supported values
     */
    self.setPlaybackRate = function (newPlaybackRate) {
      if (!player || !player.setPlaybackRate) {
        return;
      }

      playbackRate = Number(newPlaybackRate);
      player.setPlaybackRate(playbackRate);
    };

    /**
     * Set current captions track.
     *
     * @param {H5P.Video.LabelValue} Captions track to show during playback
     */
    self.setCaptionsTrack = function (track) {
      player.setOption('captions', 'track', track ? {languageCode: track.value} : {});
    };

    /**
     * Figure out which captions track is currently used.
     *
     * @return {H5P.Video.LabelValue} Captions track
     */
    self.getCaptionsTrack = function () {
      var track = player.getOption('captions', 'track');
      return (track.languageCode ? new H5P.Video.LabelValue(track.displayName, track.languageCode) : null);
    };

    // Respond to resize events by setting the YT player size.
    self.on('resize', function () {
      if (!$wrapper.is(':visible')) {
        return;
      }

      if (!player) {
        // Player isn't created yet. Try again.
        create();
        return;
      }

      // Use as much space as possible
      $wrapper.css({
        width: '100%',
        height: '100%'
      });

      var width = $wrapper[0].clientWidth;
      var height = options.fit ? $wrapper[0].clientHeight : (width * (9/16));

      // Set size
      $wrapper.css({
        width: width + 'px',
        height: height + 'px'
      });

      player.setSize(width, height);
    });
  }

  /**
   * Check to see if we can play any of the given sources.
   *
   * @public
   * @static
   * @param {Array} sources
   * @returns {Boolean}
   */
  YouTube.canPlay = function (sources) {
    return getId(sources[0].path);
  };

  /**
   * Find id of YouTube video from given URL.
   *
   * @private
   * @param {String} url
   * @returns {String} YouTube video identifier
   */

  var getId = function (url) {
    // Has some false positives, but should cover all regular URLs that people can find
    var matches = url.match(/(?:(?:youtube.com\/(?:attribution_link\?(?:\S+))?(?:v\/|embed\/|watch\/|(?:user\/(?:\S+)\/)?watch(?:\S+)v\=))|(?:youtu.be\/|y2u.be\/))([A-Za-z0-9_-]{11})/i);
    if (matches && matches[1]) {
      return matches[1];
    }
  };

  /**
   * Load the IFrame Player API asynchronously.
   */
  var loadAPI = function (loaded) {
    if (window.onYouTubeIframeAPIReady !== undefined) {
      // Someone else is loading, hook in
      var original = window.onYouTubeIframeAPIReady;
      window.onYouTubeIframeAPIReady = function (id) {
        loaded(id);
        original(id);
      };
    }
    else {
      // Load the API our self
      var tag = document.createElement('script');
      tag.src = "https://www.youtube.com/iframe_api";
      var firstScriptTag = document.getElementsByTagName('script')[0];
      firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
      window.onYouTubeIframeAPIReady = loaded;
    }
  };

  /** @constant {Object} */
  var LABELS = {
    highres: '2160p', // Old API support
    hd2160: '2160p', // (New API)
    hd1440: '1440p',
    hd1080: '1080p',
    hd720: '720p',
    large: '480p',
    medium: '360p',
    small: '240p',
    tiny: '144p',
    auto: 'Auto'
  };

  /** @private */
  var numInstances = 0;

  // Extract the current origin (used for security)
  var ORIGIN = window.location.href.match(/http[s]?:\/\/[^\/]+/);
  ORIGIN = !ORIGIN || ORIGIN[0] === undefined ? undefined : ORIGIN[0];
  // ORIGIN = undefined is needed to support fetching file from device local storage

  return YouTube;
})(H5P.jQuery);

// Register video handler
H5P.videoHandlers = H5P.videoHandlers || [];
H5P.videoHandlers.push(H5P.VideoYouTube);
;
/** @namespace H5P */
H5P.VideoPanopto = (function ($) {

  /**
   * Panopto video player for H5P.
   *
   * @class
   * @param {Array} sources Video files to use
   * @param {Object} options Settings for the player
   * @param {Object} l10n Localization strings
   */
  function Panopto(sources, options, l10n) {
    var self = this;

    var player;
    var playbackRate = 1;
    var id = 'h5p-panopto-' + numInstances;
    numInstances++;

    var $wrapper = $('<div/>');
    var $placeholder = $('<div/>', {
      id: id,
      html: '<div>' + l10n.loading + '</div>'
    }).appendTo($wrapper);

    /**
     * Use the Panopto API to create a new player
     *
     * @private
     */
    var create = function () {
      if (!$placeholder.is(':visible') || player !== undefined) {
        return;
      }

      if (window.EmbedApi === undefined) {
        // Load API first
        loadAPI(create);
        return;
      }

      var width = $wrapper.width();
      if (width < 200) {
        width = 200;
      }

      const videoId = getId(sources[0].path);

      player = new EmbedApi(id, {
        width: width,
        height: width * (9/16),
        serverName: videoId[0],
        sessionId: videoId[1],
        videoParams: { // Optional
          interactivity: 'none',
          showtitle: false,
          autohide: true,
          offerviewer: false,
          autoplay: !!options.autoplay,
          showbrand: false,
          start: 0,
          hideoverlay: !options.controls,
        },
        events: {
          onIframeReady: function () {
            $placeholder.children(0).text('');
            self.trigger('loaded');
          },
          onReady: function () {
            self.trigger('loaded');
            if (player.hasCaptions()) {
              const captions = [];

              const captionTracks = player.getCaptionTracks();
              for (trackIndex in captionTracks) {
                captions.push(new H5P.Video.LabelValue(captionTracks[trackIndex], trackIndex));
              }

              // Select active track
              currentTrack = player.getSelectedCaptionTrack();
              currentTrack = captions[currentTrack] ? captions[currentTrack] : null;

              self.trigger('captions', captions);
            }
          },
          onStateChange: function (state) {
            // TODO: Playback rate fix for IE11?
            if (state > -1 && state < 4) {
              self.trigger('stateChange', state);
            }
          },
          onPlaybackRateChange: function () {
            self.trigger('playbackRateChange', self.getPlaybackRate());
          },
          onError: function () {
            self.trigger('error', l10n.unknownError);
          },
          onLoginShown: function () {
            $placeholder.children().first().remove(); // Remove loading message
            self.trigger('loaded'); // Resize parent
          }
        }
      });
    };

    /**
     * Indicates if the video must be clicked for it to start playing.
     * This is always true for Panopto since all videos auto play.
     *
     * @public
     */
    self.pressToPlay = true;

    /**
    * Appends the video player to the DOM.
    *
    * @public
    * @param {jQuery} $container
    */
    self.appendTo = function ($container) {
      $container.addClass('h5p-panopto').append($wrapper);
      create();
    };

    /**
     * Get list of available qualities. Not available until after play.
     *
     * @public
     * @returns {Array}
     */
    self.getQualities = function () {
      // Not available for Panopto
    };

    /**
     * Get current playback quality. Not available until after play.
     *
     * @public
     * @returns {String}
     */
    self.getQuality = function () {
      // Not available for Panopto
    };

    /**
     * Set current playback quality. Not available until after play.
     * Listen to event "qualityChange" to check if successful.
     *
     * @public
     * @params {String} [quality]
     */
    self.setQuality = function (quality) {
      // Not available for Panopto
    };

    /**
     * Start the video.
     *
     * @public
     */
    self.play = function () {
      if (!player || !player.playVideo) {
        return;
      }
      player.playVideo();
    };

    /**
     * Pause the video.
     *
     * @public
     */
    self.pause = function () {
      if (!player || !player.pauseVideo) {
        return;
      }
      player.pauseVideo();
    };

    /**
     * Seek video to given time.
     *
     * @public
     * @param {Number} time
     */
    self.seek = function (time) {
      if (!player || !player.seekTo) {
        return;
      }

      player.seekTo(time);
    };

    /**
     * Get elapsed time since video beginning.
     *
     * @public
     * @returns {Number}
     */
    self.getCurrentTime = function () {
      if (!player || !player.getCurrentTime) {
        return;
      }

      return player.getCurrentTime();
    };

    /**
     * Get total video duration time.
     *
     * @public
     * @returns {Number}
     */
    self.getDuration = function () {
      if (!player || !player.getDuration) {
        return;
      }

      return player.getDuration();
    };

    /**
     * Get percentage of video that is buffered.
     *
     * @public
     * @returns {Number} Between 0 and 100
     */
    self.getBuffered = function () {
      // Not available for Panopto
    };

    /**
     * Turn off video sound.
     *
     * @public
     */
    self.mute = function () {
      if (!player || !player.muteVideo) {
        return;
      }

      player.muteVideo();
    };

    /**
     * Turn on video sound.
     *
     * @public
     */
    self.unMute = function () {
      if (!player || !player.unmuteVideo) {
        return;
      }

      player.unmuteVideo();
    };

    /**
     * Check if video sound is turned on or off.
     *
     * @public
     * @returns {Boolean}
     */
    self.isMuted = function () {
      if (!player || !player.isMuted) {
        return;
      }

      return player.isMuted();
    };

    /**
     * Return the video sound level.
     *
     * @public
     * @returns {Number} Between 0 and 100.
     */
    self.getVolume = function () {
      if (!player || !player.getVolume) {
        return;
      }

      return player.getVolume() * 100;
    };

    /**
     * Set video sound level.
     *
     * @public
     * @param {Number} level Between 0 and 100.
     */
    self.setVolume = function (level) {
      if (!player || !player.setVolume) {
        return;
      }

      player.setVolume(level/100);
    };

    /**
     * Get list of available playback rates.
     *
     * @public
     * @returns {Array} available playback rates
     */
    self.getPlaybackRates = function () {
      return [0.25, 0.5, 1, 1.25, 1.5, 2];
    };

    /**
     * Get current playback rate.
     *
     * @public
     * @returns {Number} such as 0.25, 0.5, 1, 1.25, 1.5 and 2
     */
    self.getPlaybackRate = function () {
      if (!player || !player.getPlaybackRate) {
        return;
      }

      return player.getPlaybackRate();
    };

    /**
     * Set current playback rate.
     * Listen to event "playbackRateChange" to check if successful.
     *
     * @public
     * @params {Number} suggested rate that may be rounded to supported values
     */
    self.setPlaybackRate = function (newPlaybackRate) {
      if (!player || !player.setPlaybackRate) {
        return;
      }

      player.setPlaybackRate(newPlaybackRate);
    };

    /**
     * Set current captions track.
     *
     * @param {H5P.Video.LabelValue} Captions track to show during playback
     */
    self.setCaptionsTrack = function (track) {
      if (!track) {
        console.log('Disable captions');
        player.disableCaptions();
        currentTrack = null;
      }
      else {
        console.log('Set captions', track.value);
        player.enableCaptions(track.value + '');
        currentTrack = track;
      }
    };

    /**
     * Figure out which captions track is currently used.
     *
     * @return {H5P.Video.LabelValue} Captions track
     */
    self.getCaptionsTrack = function () {
      return currentTrack; // No function for getting active caption track?
    };

    // Respond to resize events by setting the player size.
    self.on('resize', function () {
      if (!$wrapper.is(':visible')) {
        return;
      }

      if (!player) {
        // Player isn't created yet. Try again.
        create();
        return;
      }

      // Use as much space as possible
      $wrapper.css({
        width: '100%',
        height: '100%'
      });

      var width = $wrapper[0].clientWidth;
      var height = options.fit ? $wrapper[0].clientHeight : (width * (9/16));

      // Set size
      $wrapper.css({
        width: width + 'px',
        height: height + 'px'
      });

      const $iframe = $placeholder.children('iframe');
      if ($iframe.length) {
        $iframe.attr('width', width);
        $iframe.attr('height', height);
      }
    });

    let currentTrack;
  }

  /**
   * Check to see if we can play any of the given sources.
   *
   * @public
   * @static
   * @param {Array} sources
   * @returns {Boolean}
   */
  Panopto.canPlay = function (sources) {
    return getId(sources[0].path);
  };

  /**
   * Find id of YouTube video from given URL.
   *
   * @private
   * @param {String} url
   * @returns {String} Panopto video identifier
   */
  var getId = function (url) {
    const matches = url.match(/^[^\/]+:\/\/([^\/]*panopto\.[^\/]+)\/Panopto\/.+\?id=(.+)$/);
    if (matches && matches.length === 3) {
      return [matches[1], matches[2]];
    }
  };

  /**
   * Load the IFrame Player API asynchronously.
   */
  var loadAPI = function (loaded) {
    if (window.onPanoptoEmbedApiReady !== undefined) {
      // Someone else is loading, hook in
      var original = window.onPanoptoEmbedApiReady;
      window.onPanoptoEmbedApiReady = function (id) {
        loaded(id);
        original(id);
      };
    }
    else {
      // Load the API our self
      var tag = document.createElement('script');
      tag.src = 'https://developers.panopto.com/scripts/embedapi.min.js';
      var firstScriptTag = document.getElementsByTagName('script')[0];
      firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
      window.onPanoptoEmbedApiReady = loaded;
    }
  };

  /** @private */
  var numInstances = 0;

  return Panopto;
})(H5P.jQuery);

// Register video handler
H5P.videoHandlers = H5P.videoHandlers || [];
H5P.videoHandlers.push(H5P.VideoPanopto);
;
/** @namespace H5P */
H5P.VideoHtml5 = (function ($) {

  /**
   * HTML5 video player for H5P.
   *
   * @class
   * @param {Array} sources Video files to use
   * @param {Object} options Settings for the player
   * @param {Object} l10n Localization strings
   */
  function Html5(sources, options, l10n) {
    var self = this;

    /**
     * Small helper to ensure all video sources get the same cache buster.
     *
     * @private
     * @param {Object} source
     * @return {string}
     */
    const getCrossOriginPath = function (source) {
      let path = H5P.getPath(source.path, self.contentId);
      if (video.crossOrigin !== null && H5P.addQueryParameter && H5PIntegration.crossoriginCacheBuster) {
        path = H5P.addQueryParameter(path, H5PIntegration.crossoriginCacheBuster);
      }
      return path
    };


    /**
     * Register track to video
     *
     * @param {Object} trackData Track object
     * @param {string} trackData.kind Kind of track
     * @param {Object} trackData.track Source path
     * @param {string} [trackData.label] Label of track
     * @param {string} [trackData.srcLang] Language code
     */
    const addTrack = function (trackData) {
      // Skip invalid tracks
      if (!trackData.kind || !trackData.track.path) {
        return;
      }

      var track = document.createElement('track');
      track.kind = trackData.kind;
      track.src = getCrossOriginPath(trackData.track); // Uses same crossOrigin as parent. You cannot mix.
      if (trackData.label) {
        track.label = trackData.label;
      }

      if (trackData.srcLang) {
        track.srcLang = trackData.srcLang;
      }

      return track;
    };

    /**
     * Small helper to set the inital video source.
     * Useful if some of the loading happens asynchronously.
     * NOTE: Setting the crossOrigin must happen before any of the
     * sources(poster, tracks etc.) are loaded
     *
     * @private
     */
    const setInitialSource = function () {
      if (H5P.setSource !== undefined) {
        H5P.setSource(video, qualities[currentQuality].source, self.contentId)
      }
      else {
        // Backwards compatibility (H5P < v1.22)
        const srcPath = H5P.getPath(qualities[currentQuality].source.path, self.contentId);
        if (H5P.getCrossOrigin !== undefined) {
          var crossOrigin = H5P.getCrossOrigin(srcPath);
          video.setAttribute('crossorigin', crossOrigin !== null ? crossOrigin : 'anonymous');
        }
        video.src = srcPath;
      }

      // Add poster if provided
      if (options.poster) {
        video.poster = getCrossOriginPath(options.poster); // Uses same crossOrigin as parent. You cannot mix.
      }

      // Register tracks
      options.tracks.forEach(function (track, i) {
        var trackElement = addTrack(track);
        if (i === 0) {
          trackElement.default = true;
        }
        if (trackElement) {
          video.appendChild(trackElement);
        }
      });
    };

    /**
     * Displayed when the video is buffering
     * @private
     */
    var $throbber = $('<div/>', {
      'class': 'h5p-video-loading'
    });

    /**
     * Used to display error messages
     * @private
     */
    var $error = $('<div/>', {
      'class': 'h5p-video-error'
    });

    /**
     * Keep track of current state when changing quality.
     * @private
     */
    var stateBeforeChangingQuality;
    var currentTimeBeforeChangingQuality;

    /**
     * Avoids firing the same event twice.
     * @private
     */
    var lastState;

    /**
     * Keeps track whether or not the video has been loaded.
     * @private
     */
    var isLoaded = false;

    /**
     *
     * @private
     */
    var playbackRate = 1;
    var skipRateChange = false;

    // Create player
    var video = document.createElement('video');

    // Sort sources into qualities
    var qualities = getQualities(sources, video);
    var currentQuality;

    numQualities = 0;
    for (let quality in qualities) {
      numQualities++;
    }

    if (numQualities > 1 && H5P.VideoHtml5.getExternalQuality !== undefined) {
      H5P.VideoHtml5.getExternalQuality(sources, function (chosenQuality) {
        if (qualities[chosenQuality] !== undefined) {
          currentQuality = chosenQuality;
        }
        setInitialSource();
      });
    }
    else {
      // Select quality and source
      currentQuality = getPreferredQuality();
      if (currentQuality === undefined || qualities[currentQuality] === undefined) {
        // No preferred quality, pick the first.
        for (currentQuality in qualities) {
          if (qualities.hasOwnProperty(currentQuality)) {
            break;
          }
        }
      }
      setInitialSource();
    }

    // Setting webkit-playsinline, which makes iOS 10 beeing able to play video
    // inside browser.
    video.setAttribute('webkit-playsinline', '');
    video.setAttribute('playsinline', '');
    video.setAttribute('preload', 'metadata');

    // Set options
    video.disableRemotePlayback = (options.disableRemotePlayback ? true : false);
    video.controls = (options.controls ? true : false);
    video.autoplay = (options.autoplay ? true : false);
    video.loop = (options.loop ? true : false);
    video.className = 'h5p-video';
    video.style.display = 'block';

    if (options.fit) {
      // Style is used since attributes with relative sizes aren't supported by IE9.
      video.style.width = '100%';
      video.style.height = '100%';
    }

    /**
     * Helps registering events.
     *
     * @private
     * @param {String} native Event name
     * @param {String} h5p Event name
     * @param {String} [arg] Optional argument
     */
    var mapEvent = function (native, h5p, arg) {
      video.addEventListener(native, function () {
        switch (h5p) {
          case 'stateChange':
            if (lastState === arg) {
              return; // Avoid firing event twice.
            }

            var validStartTime = options.startAt && options.startAt > 0;
            if (arg === H5P.Video.PLAYING && validStartTime) {
              video.currentTime = options.startAt;
              delete options.startAt;
            }

            break;

          case 'loaded':
            isLoaded = true;

            if (stateBeforeChangingQuality !== undefined) {
              return; // Avoid loaded event when changing quality.
            }

            // Remove any errors
            if ($error.is(':visible')) {
              $error.remove();
            }

            if (OLD_ANDROID_FIX) {
              var andLoaded = function () {
                video.removeEventListener('durationchange', andLoaded, false);
                // On Android seeking isn't ready until after play.
                self.trigger(h5p);
              };
              video.addEventListener('durationchange', andLoaded, false);
              return;
            }
            break;

          case 'error':
            // Handle error and get message.
            arg = error(arguments[0], arguments[1]);
            break;

          case 'playbackRateChange':

            // Fix for keeping playback rate in IE11
            if (skipRateChange) {
              skipRateChange = false;
              return; // Avoid firing event when changing back
            }
            if (H5P.Video.IE11_PLAYBACK_RATE_FIX && playbackRate != video.playbackRate) { // Intentional
              // Prevent change in playback rate not triggered by the user
              video.playbackRate = playbackRate;
              skipRateChange = true;
              return;
            }
            // End IE11 fix

            arg = self.getPlaybackRate();
            break;
        }
        self.trigger(h5p, arg);
      }, false);
    };

    /**
     * Handle errors from the video player.
     *
     * @private
     * @param {Object} code Error
     * @param {String} [message]
     * @returns {String} Human readable error message.
     */
    var error = function (code, message) {
      if (code instanceof Event) {

        // No error code
        if (!code.target.error) {
          return '';
        }

        switch (code.target.error.code) {
          case MediaError.MEDIA_ERR_ABORTED:
            message = l10n.aborted;
            break;
          case MediaError.MEDIA_ERR_NETWORK:
            message = l10n.networkFailure;
            break;
          case MediaError.MEDIA_ERR_DECODE:
            message = l10n.cannotDecode;
            break;
          case MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED:
            message = l10n.formatNotSupported;
            break;
          case MediaError.MEDIA_ERR_ENCRYPTED:
            message = l10n.mediaEncrypted;
            break;
        }
      }
      if (!message) {
        message = l10n.unknownError;
      }

      // Hide throbber
      $throbber.remove();

      // Display error message to user
      $error.text(message).insertAfter(video);

      // Pass message to our error event
      return message;
    };

    /**
     * Appends the video player to the DOM.
     *
     * @public
     * @param {jQuery} $container
     */
    self.appendTo = function ($container) {
      $container.append(video);
    };

    /**
     * Get list of available qualities. Not available until after play.
     *
     * @public
     * @returns {Array}
     */
    self.getQualities = function () {
      // Create reverse list
      var options = [];
      for (var q in qualities) {
        if (qualities.hasOwnProperty(q)) {
          options.splice(0, 0, {
            name: q,
            label: qualities[q].label
          });
        }
      }

      if (options.length < 2) {
        // Do not return if only one quality.
        return;
      }

      return options;
    };

    /**
     * Get current playback quality. Not available until after play.
     *
     * @public
     * @returns {String}
     */
    self.getQuality = function () {
      return currentQuality;
    };

    /**
     * Set current playback quality. Not available until after play.
     * Listen to event "qualityChange" to check if successful.
     *
     * @public
     * @params {String} [quality]
     */
    self.setQuality = function (quality) {
      if (qualities[quality] === undefined || quality === currentQuality) {
        return; // Invalid quality
      }

      // Keep track of last choice
      setPreferredQuality(quality);

      // Avoid multiple loaded events if changing quality multiple times.
      if (!stateBeforeChangingQuality) {
        // Keep track of last state
        stateBeforeChangingQuality = lastState;

        // Keep track of current time
        currentTimeBeforeChangingQuality = video.currentTime;

        // Seek and start video again after loading.
        var loaded = function () {
          video.removeEventListener('loadedmetadata', loaded, false);
          if (OLD_ANDROID_FIX) {
            var andLoaded = function () {
              video.removeEventListener('durationchange', andLoaded, false);
              // On Android seeking isn't ready until after play.
              self.seek(currentTimeBeforeChangingQuality);
            };
            video.addEventListener('durationchange', andLoaded, false);
          }
          else {
            // Seek to current time.
            self.seek(currentTimeBeforeChangingQuality);
          }

          // Always play to get image.
          video.play();

          if (stateBeforeChangingQuality !== H5P.Video.PLAYING) {
            // Do not resume playing
            video.pause();
          }

          // Done changing quality
          stateBeforeChangingQuality = undefined;

          // Remove any errors
          if ($error.is(':visible')) {
            $error.remove();
          }
        };
        video.addEventListener('loadedmetadata', loaded, false);
      }

      // Keep track of current quality
      currentQuality = quality;
      self.trigger('qualityChange', currentQuality);

      // Display throbber
      self.trigger('stateChange', H5P.Video.BUFFERING);

      // Change source
      video.src = getCrossOriginPath(qualities[quality].source); // (iPad does not support #t=).
      // Note: Optional tracks use same crossOrigin as the original. You cannot mix.

      // Remove poster so it will not show during quality change
      video.removeAttribute('poster');
    };

    /**
     * Starts the video.
     *
     * @public
     * @return {Promise|undefined} May return a Promise that resolves when
     * play has been processed.
     */
    self.play = function () {
      if ($error.is(':visible')) {
        return;
      }

      if (!isLoaded) {
        // Make sure video is loaded before playing
        video.load();
      }

      return video.play();
    };

    /**
     * Pauses the video.
     *
     * @public
     */
    self.pause = function () {
      video.pause();
    };

    /**
     * Seek video to given time.
     *
     * @public
     * @param {Number} time
     */
    self.seek = function (time) {
      if (lastState === undefined) {
        // Make sure we always play before we seek to get an image.
        // If not iOS devices will reset currentTime when pressing play.
        video.play();
        video.pause();
      }

      video.currentTime = time;
    };

    /**
     * Get elapsed time since video beginning.
     *
     * @public
     * @returns {Number}
     */
    self.getCurrentTime = function () {
      return video.currentTime;
    };

    /**
     * Get total video duration time.
     *
     * @public
     * @returns {Number}
     */
    self.getDuration = function () {
      if (isNaN(video.duration)) {
        return;
      }

      return video.duration;
    };

    /**
     * Get percentage of video that is buffered.
     *
     * @public
     * @returns {Number} Between 0 and 100
     */
    self.getBuffered = function () {
      // Find buffer currently playing from
      var buffered = 0;
      for (var i = 0; i < video.buffered.length; i++) {
        var from = video.buffered.start(i);
        var to = video.buffered.end(i);

        if (video.currentTime > from && video.currentTime < to) {
          buffered = to;
          break;
        }
      }

      // To percentage
      return buffered ? (buffered / video.duration) * 100 : 0;
    };

    /**
     * Turn off video sound.
     *
     * @public
     */
    self.mute = function () {
      video.muted = true;
    };

    /**
     * Turn on video sound.
     *
     * @public
     */
    self.unMute = function () {
      video.muted = false;
    };

    /**
     * Check if video sound is turned on or off.
     *
     * @public
     * @returns {Boolean}
     */
    self.isMuted = function () {
      return video.muted;
    };

    /**
     * Returns the video sound level.
     *
     * @public
     * @returns {Number} Between 0 and 100.
     */
    self.getVolume = function () {
      return video.volume * 100;
    };

    /**
     * Set video sound level.
     *
     * @public
     * @param {Number} level Between 0 and 100.
     */
    self.setVolume = function (level) {
      video.volume = level / 100;
    };

    /**
     * Get list of available playback rates.
     *
     * @public
     * @returns {Array} available playback rates
     */
    self.getPlaybackRates = function () {
      /*
       * not sure if there's a common rule about determining good speeds
       * using Google's standard options via a constant for setting
       */
      var playbackRates = PLAYBACK_RATES;

      return playbackRates;
    };

    /**
     * Get current playback rate.
     *
     * @public
     * @returns {Number} such as 0.25, 0.5, 1, 1.25, 1.5 and 2
     */
    self.getPlaybackRate = function () {
      return video.playbackRate;
    };

    /**
     * Set current playback rate.
     * Listen to event "playbackRateChange" to check if successful.
     *
     * @public
     * @params {Number} suggested rate that may be rounded to supported values
     */
    self.setPlaybackRate = function (newPlaybackRate) {
      playbackRate = newPlaybackRate;
      video.playbackRate = newPlaybackRate;
    };

    /**
     * Set current captions track.
     *
     * @param {H5P.Video.LabelValue} Captions track to show during playback
     */
    self.setCaptionsTrack = function (track) {
      for (var i = 0; i < video.textTracks.length; i++) {
        video.textTracks[i].mode = (track && track.value === i ? 'showing' : 'disabled');
      }
    };

    /**
     * Figure out which captions track is currently used.
     *
     * @return {H5P.Video.LabelValue} Captions track
     */
    self.getCaptionsTrack = function () {
      for (var i = 0; i < video.textTracks.length; i++) {
        if (video.textTracks[i].mode === 'showing') {
          return new H5P.Video.LabelValue(video.textTracks[i].label, i);
        }
      }

      return null;
    };

    // Register event listeners
    mapEvent('ended', 'stateChange', H5P.Video.ENDED);
    mapEvent('playing', 'stateChange', H5P.Video.PLAYING);
    mapEvent('pause', 'stateChange', H5P.Video.PAUSED);
    mapEvent('waiting', 'stateChange', H5P.Video.BUFFERING);
    mapEvent('loadedmetadata', 'loaded');
    mapEvent('error', 'error');
    mapEvent('ratechange', 'playbackRateChange');

    if (!video.controls) {
      // Disable context menu(right click) to prevent controls.
      video.addEventListener('contextmenu', function (event) {
        event.preventDefault();
      }, false);
    }

    // Display throbber when buffering/loading video.
    self.on('stateChange', function (event) {
      var state = event.data;
      lastState = state;
      if (state === H5P.Video.BUFFERING) {
        $throbber.insertAfter(video);
      }
      else {
        $throbber.remove();
      }
    });

    // Load captions after the video is loaded
    self.on('loaded', function () {
      nextTick(function () {
        var textTracks = [];
        for (var i = 0; i < video.textTracks.length; i++) {
          textTracks.push(new H5P.Video.LabelValue(video.textTracks[i].label, i));
        }
        if (textTracks.length) {
          self.trigger('captions', textTracks);
        }
      });
    });

    // Video controls are ready
    nextTick(function () {
      self.trigger('ready');
    });
  }

  /**
   * Check to see if we can play any of the given sources.
   *
   * @public
   * @static
   * @param {Array} sources
   * @returns {Boolean}
   */
  Html5.canPlay = function (sources) {
    var video = document.createElement('video');
    if (video.canPlayType === undefined) {
      return false; // Not supported
    }

    // Cycle through sources
    for (var i = 0; i < sources.length; i++) {
      var type = getType(sources[i]);
      if (type && video.canPlayType(type) !== '') {
        // We should be able to play this
        return true;
      }
    }

    return false;
  };

  /**
   * Find source type.
   *
   * @private
   * @param {Object} source
   * @returns {String}
   */
  var getType = function (source) {
    var type = source.mime;
    if (!type) {
      // Try to get type from URL
      var matches = source.path.match(/\.(\w+)$/);
      if (matches && matches[1]) {
        type = 'video/' + matches[1];
      }
    }

    if (type && source.codecs) {
      // Add codecs
      type += '; codecs="' + source.codecs + '"';
    }

    return type;
  };

  /**
   * Sort sources into qualities.
   *
   * @private
   * @static
   * @param {Array} sources
   * @param {Object} video
   * @returns {Object} Quality mapping
   */
  var getQualities = function (sources, video) {
    var qualities = {};
    var qualityIndex = 1;
    var lastQuality;

    // Cycle through sources
    for (var i = 0; i < sources.length; i++) {
      var source = sources[i];

      // Find and update type.
      var type = source.type = getType(source);

      // Check if we support this type
      var isPlayable = type && (type === 'video/unknown' || video.canPlayType(type) !== '');
      if (!isPlayable) {
        continue; // We cannot play this source
      }

      if (source.quality === undefined) {
        /**
         * No quality metadata. Create a quality tag to separate multiple sources of the same type,
         * e.g. if two mp4 files with different quality has been uploaded
         */

        if (lastQuality === undefined || qualities[lastQuality].source.type === type) {
          // Create a new quality tag
          source.quality = {
            name: 'q' + qualityIndex,
            label: (source.metadata && source.metadata.qualityName) ? source.metadata.qualityName : 'Quality ' + qualityIndex // TODO: l10n
          };
          qualityIndex++;
        }
        else {
          /**
           * Assumes quality already exists in a different format.
           * Uses existing label for this quality.
           */
          source.quality = qualities[lastQuality].source.quality;
        }
      }

      // Log last quality
      lastQuality = source.quality.name;

      // Look to see if quality exists
      var quality = qualities[lastQuality];
      if (quality) {
        // We have a source with this quality. Check if we have a better format.
        if (source.mime.split('/')[1] === PREFERRED_FORMAT) {
          quality.source = source;
        }
      }
      else {
        // Add new source with quality.
        qualities[source.quality.name] = {
          label: source.quality.label,
          source: source
        };
      }
    }

    return qualities;
  };

  /**
   * Set preferred video quality.
   *
   * @private
   * @static
   * @param {String} quality Index of preferred quality
   */
  var setPreferredQuality = function (quality) {
    try {
      localStorage.setItem('h5pVideoQuality', quality);
    }
    catch (err) {
      console.warn('Unable to set preferred video quality, localStorage is not available.');
    }
  };

  /**
   * Get preferred video quality.
   *
   * @private
   * @static
   * @returns {String} Index of preferred quality
   */
  var getPreferredQuality = function () {
    // First check localStorage
    let quality;
    try {
      quality = localStorage.getItem('h5pVideoQuality');
    }
    catch (err) {
      console.warn('Unable to retrieve preferred video quality from localStorage.');
    }
    if (!quality) {
      try {
        // The fallback to old cookie solution
        var settings = document.cookie.split(';');
        for (var i = 0; i < settings.length; i++) {
          var setting = settings[i].split('=');
          if (setting[0] === 'H5PVideoQuality') {
            quality = setting[1];
            break;
          }
        }
      }
      catch (err) {
        console.warn('Unable to retrieve preferred video quality from cookie.');
      }
    }
    return quality;
  };

  /**
   * Helps schedule a task for the next tick.
   * @param {function} task
   */
  var nextTick = function (task) {
    setTimeout(task, 0);
  };

  /** @constant {Boolean} */
  var OLD_ANDROID_FIX = false;

  /** @constant {Boolean} */
  var PREFERRED_FORMAT = 'mp4';

  /** @constant {Object} */
  var PLAYBACK_RATES = [0.25, 0.5, 1, 1.25, 1.5, 2];

  if (navigator.userAgent.indexOf('Android') !== -1) {
    // We have Android, check version.
    var version = navigator.userAgent.match(/AppleWebKit\/(\d+\.?\d*)/);
    if (version && version[1] && Number(version[1]) <= 534.30) {
      // Include fix for devices running the native Android browser.
      // (We don't know when video was fixed, so the number is just the lastest
      // native android browser we found.)
      OLD_ANDROID_FIX = true;
    }
  }
  else {
    if (navigator.userAgent.indexOf('Chrome') !== -1) {
      // If we're using chrome on a device that isn't Android, prefer the webm
      // format. This is because Chrome has trouble with some mp4 codecs.
      PREFERRED_FORMAT = 'webm';
    }
  }

  return Html5;
})(H5P.jQuery);

// Register video handler
H5P.videoHandlers = H5P.videoHandlers || [];
H5P.videoHandlers.push(H5P.VideoHtml5);
;
/** @namespace H5P */
H5P.VideoFlash = (function ($) {

  /**
   * Flash video player for H5P.
   *
   * @class
   * @param {Array} sources Video files to use
   * @param {Object} options Settings for the player
   */
  function Flash(sources, options) {
    var self = this;

    // Player wrapper
    var $wrapper = $('<div/>', {
      'class': 'h5p-video-flash',
      css: {
        width: '100%',
        height: '100%'
      }
    });

    /**
     * Used to display error messages
     * @private
     */
    var $error = $('<div/>', {
      'class': 'h5p-video-error'
    });

    /**
    * Keep track of current state when changing quality.
    * @private
    */
    var stateBeforeChangingQuality;
    var currentTimeBeforeChangingQuality;

    // Sort sources into qualities
    //var qualities = getQualities(sources);
    var currentQuality;

    // Create player options
    var playerOptions = {
      buffering: true,
      clip: {
        url: sources[0].path, // getPreferredQuality(),
        autoPlay: options.autoplay,
        autoBuffering: true,
        scaling: 'fit',
        onSeek: function () {
          if (stateBeforeChangingQuality) {
            // ????
          }
        },
        onMetaData: function () {
          setTimeout(function () {
            if (stateBeforeChangingQuality !== undefined) {
              fp.seek(currentTimeBeforeChangingQuality);
              if (stateBeforeChangingQuality === H5P.Video.PLAYING) {
                // Resume play
                fp.play();
              }

              // Done changing quality
              stateBeforeChangingQuality = undefined;

              // Remove any errors
              if ($error.is(':visible')) {
                $error.remove();
              }
            }
            else {
              self.trigger('ready');
              self.trigger('loaded');
            }
          }, 0); // Run on next tick
        },
        onBegin: function () {
          self.trigger('stateChange', H5P.Video.PLAYING);
        },
        onResume: function () {
          self.trigger('stateChange', H5P.Video.PLAYING);
        },
        onPause: function () {
          self.trigger('stateChange', H5P.Video.PAUSED);
        },
        onFinish: function () {
          self.trigger('stateChange', H5P.Video.ENDED);
        },
        onError: function (code, message) {
          console.log('ERROR', code, message); // TODO
          self.trigger('error', message);
        }
      },
      plugins: {
        controls: null
      },
      play: null, // Disable overlay controls
      onPlaylistReplace: function () {
        that.playlistReplaced();
      }
    };

    if (options.controls) {
      playerOptions.plugins.controls = {};
      delete playerOptions.play;
    }

    var fp = flowplayer($wrapper[0], {
      src: "http://releases.flowplayer.org/swf/flowplayer-3.2.16.swf",
      wmode: "opaque"
    }, playerOptions);

    /**
     * Appends the video player to the DOM.
     *
     * @public
     * @param {jQuery} $container
     */
    self.appendTo = function ($container) {
      $wrapper.appendTo($container);
    };

    /**
     * Get list of available qualities. Not available until after play.
     *
     * @public
     * @returns {Array}
     */
    self.getQualities = function () {
      return;
    };

    /**
     * Get current playback quality. Not available until after play.
     *
     * @public
     * @returns {String}
     */
    self.getQuality = function () {
      return currentQuality;
    };

    /**
     * Set current playback quality. Not available until after play.
     * Listen to event "qualityChange" to check if successful.
     *
     * @public
     * @params {String} [quality]
     */
    self.setQuality = function (quality) {
      if (qualities[quality] === undefined || quality === currentQuality) {
        return; // Invalid quality
      }

      // Keep track of last choice
      setPreferredQuality(quality);

      // Avoid multiple loaded events if changing quality multiple times.
      if (!stateBeforeChangingQuality) {
        // Keep track of last state
        stateBeforeChangingQuality = lastState;

        // Keep track of current time
        currentTimeBeforeChangingQuality = video.currentTime;
      }

      // Keep track of current quality
      currentQuality = quality;
      self.trigger('qualityChange', currentQuality);

      // Display throbber
      self.trigger('stateChange', H5P.Video.BUFFERING);

      // Change source
      fp.setClip(qualities[quality].source.path);
      fp.startBuffering();
    };

    /**
     * Starts the video.
     *
     * @public
     */
    self.play = function () {
      if ($error.is(':visible')) {
        return;
      }

      fp.play();
    };

    /**
     * Pauses the video.
     *
     * @public
     */
    self.pause = function () {
      fp.pause();
    };

    /**
     * Seek video to given time.
     *
     * @public
     * @param {Number} time
     */
    self.seek = function (time) {
      fp.seek(time);
    };

    /**
     * Get elapsed time since video beginning.
     *
     * @public
     * @returns {Number}
     */
    self.getCurrentTime = function () {
      return fp.getTime();
    };

    /**
     * Get total video duration time.
     *
     * @public
     * @returns {Number}
     */
    self.getDuration = function () {
      return fp.getClip().metaData.duration;
    };

    /**
     * Get percentage of video that is buffered.
     *
     * @public
     * @returns {Number} Between 0 and 100
     */
    self.getBuffered = function () {
      return fp.getClip().buffer;
    };

    /**
     * Turn off video sound.
     *
     * @public
     */
    self.mute = function () {
      fp.mute();
    };

    /**
     * Turn on video sound.
     *
     * @public
     */
    self.unMute = function () {
      fp.unmute();
    };

    /**
     * Check if video sound is turned on or off.
     *
     * @public
     * @returns {Boolean}
     */
    self.isMuted = function () {
      return fp.muted;
    };

    /**
     * Returns the video sound level.
     *
     * @public
     * @returns {Number} Between 0 and 100.
     */
    self.getVolume = function () {
      return fp.volumeLevel * 100;
    };

    /**
     * Set video sound level.
     *
     * @public
     * @param {Number} volume Between 0 and 100.
     */
    self.setVolume = function (level) {
      fp.volume(level / 100);
    };

    // Handle resize events
    self.on('resize', function () {
      var $object = H5P.jQuery(fp.getParent()).children('object');
      var clip = fp.getClip();

      if (clip !== undefined) {
        $object.css('height', $object.width() * (clip.metaData.height / clip.metaData.width));
      }
    });
  }

  /**
   * Check to see if we can play any of the given sources.
   *
   * @public
   * @static
   * @param {Array} sources
   * @returns {Boolean}
   */
  Flash.canPlay = function (sources) {
    // Cycle through sources
    for (var i = 0; i < sources.length; i++) {
      if (sources[i].mime === 'video/mp4' || /\.mp4$/.test(sources[i].mime)) {
        return true; // We only play mp4
      }
    }
  };

  return Flash;
})(H5P.jQuery);

// Register video handler
H5P.videoHandlers = H5P.videoHandlers || [];
H5P.videoHandlers.push(H5P.VideoFlash);
;
/** @namespace H5P */
H5P.Video = (function ($, ContentCopyrights, MediaCopyright, handlers) {

  /**
   * The ultimate H5P video player!
   *
   * @class
   * @param {Object} parameters Options for this library.
   * @param {Object} parameters.visuals Visual options
   * @param {Object} parameters.playback Playback options
   * @param {Object} parameters.a11y Accessibility options
   * @param {Boolean} [parameters.startAt] Start time of video
   * @param {Number} id Content identifier
   */
  function Video(parameters, id) {
    var self = this;
    self.contentId = id;

    // Ref youtube.js - ipad & youtube - issue
    self.pressToPlay = false;

    // Reference to the handler
    var handlerName = '';

    // Initialize event inheritance
    H5P.EventDispatcher.call(self);

    // Default language localization
    parameters = $.extend(true, parameters, {
      l10n: {
        name: 'Video',
        loading: 'Video player loading...',
        noPlayers: 'Found no video players that supports the given video format.',
        noSources: 'Video source is missing.',
        aborted: 'Media playback has been aborted.',
        networkFailure: 'Network failure.',
        cannotDecode: 'Unable to decode media.',
        formatNotSupported: 'Video format not supported.',
        mediaEncrypted: 'Media encrypted.',
        unknownError: 'Unknown error.',
        invalidYtId: 'Invalid YouTube ID.',
        unknownYtId: 'Unable to find video with the given YouTube ID.',
        restrictedYt: 'The owner of this video does not allow it to be embedded.'
      }
    });

    parameters.a11y = parameters.a11y || [];
    parameters.playback = parameters.playback || {};
    parameters.visuals = parameters.visuals || {};

    /** @private */
    var sources = [];
    if (parameters.sources) {
      for (var i = 0; i < parameters.sources.length; i++) {
        // Clone to avoid changing of parameters.
        var source = $.extend(true, {}, parameters.sources[i]);

        // Create working URL without html entities.
        source.path = $cleaner.html(source.path).text();
        sources.push(source);
      }
    }

    /** @private */
    var tracks = [];
    parameters.a11y.forEach(function (track) {
      // Clone to avoid changing of parameters.
      var clone = $.extend(true, {}, track);

      // Create working URL without html entities
      if (clone.track && clone.track.path) {
        clone.track.path = $cleaner.html(clone.track.path).text();
        tracks.push(clone);
      }
    });

    /**
     * Attaches the video handler to the given container.
     * Inserts text if no handler is found.
     *
     * @public
     * @param {jQuery} $container
     */
    self.attach = function ($container) {
      $container.addClass('h5p-video').html('');

      if (self.appendTo !== undefined) {
        self.appendTo($container);
      }
      else {
        if (sources.length) {
          $container.text(parameters.l10n.noPlayers);
        }
        else {
          $container.text(parameters.l10n.noSources);
        }
      }
    };

    /**
     * Get name of the video handler
     *
     * @public
     * @returns {string}
     */
    self.getHandlerName = function() {
      return handlerName;
    };

    // Resize the video when we know its aspect ratio
    self.on('loaded', function () {
      self.trigger('resize');
    });

    // Find player for video sources
    if (sources.length) {
      var html5Handler;
      for (var i = 0; i < handlers.length; i++) {
        var handler = handlers[i];
        if (handler.canPlay !== undefined && handler.canPlay(sources)) {
          handler.call(self, sources, {
            controls: parameters.visuals.controls,
            autoplay: parameters.playback.autoplay,
            loop: parameters.playback.loop,
            fit: parameters.visuals.fit,
            poster: parameters.visuals.poster === undefined ? undefined : parameters.visuals.poster,
            startAt: parameters.startAt || 0,
            tracks: tracks,
            disableRemotePlayback: (parameters.visuals.disableRemotePlayback || false)
          }, parameters.l10n);
          handlerName = handler.name;
          return;
        }

        if (handler === H5P.VideoHtml5) {
          html5Handler = handler;
          handlerName = handler.name;
        }
      }

      // Fallback to trying HTML5 player
      if (html5Handler) {
        html5Handler.call(self, sources, {
          controls: parameters.visuals.controls,
          autoplay: parameters.playback.autoplay,
          loop: parameters.playback.loop,
          fit: parameters.visuals.fit,
          poster: parameters.visuals.poster === undefined ? undefined : parameters.visuals.poster,
          startAt: parameters.startAt || 0,
          tracks: tracks,
          disableRemotePlayback: (parameters.visuals.disableRemotePlayback || false)
        }, parameters.l10n);
      }
    }
  }

  // Extends the event dispatcher
  Video.prototype = Object.create(H5P.EventDispatcher.prototype);
  Video.prototype.constructor = Video;

  // Player states
  /** @constant {Number} */
  Video.ENDED = 0;
  /** @constant {Number} */
  Video.PLAYING = 1;
  /** @constant {Number} */
  Video.PAUSED = 2;
  /** @constant {Number} */
  Video.BUFFERING = 3;
  /**
   * When video is queued to start
   * @constant {Number}
   */
  Video.VIDEO_CUED = 5;

  // Used to convert between html and text, since URLs have html entities.
  var $cleaner = H5P.jQuery('<div/>');

  /**
   * Help keep track of key value pairs used by the UI.
   *
   * @class
   * @param {string} label
   * @param {string} value
   */
  Video.LabelValue = function (label, value) {
    this.label = label;
    this.value = value;
  };

  /** @constant {Boolean} */
  Video.IE11_PLAYBACK_RATE_FIX = (navigator.userAgent.match(/Trident.*rv[ :]*11\./) ? true : false);

  return Video;
})(H5P.jQuery, H5P.ContentCopyrights, H5P.MediaCopyright, H5P.videoHandlers || []);
;
H5P = H5P || {};

/**
 * Will render a Question with multiple choices for answers.
 *
 * Events provided:
 * - h5pQuestionSetFinished: Triggered when a question is finished. (User presses Finish-button)
 *
 * @param {Array} options
 * @param {int} contentId
 * @param {Object} contentData
 * @returns {H5P.QuestionSet} Instance
 */
H5P.QuestionSet = function (options, contentId, contentData) {
  if (!(this instanceof H5P.QuestionSet)) {
    return new H5P.QuestionSet(options, contentId, contentData);
  }
  H5P.EventDispatcher.call(this);
  var $ = H5P.jQuery;
  var self = this;
  this.contentId = contentId;

  var defaults = {
    initialQuestion: 0,
    progressType: 'dots',
    passPercentage: 50,
    questions: [],
    introPage: {
      showIntroPage: false,
      title: '',
      introduction: '',
      startButtonText: 'Start'
    },
    texts: {
      prevButton: 'Previous question',
      nextButton: 'Next question',
      finishButton: 'Finish',
      textualProgress: 'Question: @current of @total questions',
      jumpToQuestion: 'Question %d of %total',
      questionLabel: 'Question',
      readSpeakerProgress: 'Question @current of @total',
      unansweredText: 'Unanswered',
      answeredText: 'Answered',
      currentQuestionText: 'Current question'
    },
    endGame: {
      showResultPage: true,
      noResultMessage: 'Finished',
      message: 'Your result:',
      oldFeedback: {
        successGreeting: '',
        successComment: '',
        failGreeting: '',
        failComment: ''
      },
      overallFeedback: [],
      finishButtonText: 'Finish',
      solutionButtonText: 'Show solution',
      retryButtonText: 'Retry',
      showAnimations: false,
      skipButtonText: 'Skip video',
      showSolutionButton: true,
      showRetryButton: true
    },
    override: {},
    disableBackwardsNavigation: false
  };
  var params = $.extend(true, {}, defaults, options);

  var texttemplate =
          '<% if (introPage.showIntroPage) { %>' +
          '<div class="intro-page">' +
          '  <% if (introPage.title) { %>' +
          '    <div class="title"><span><%= introPage.title %></span></div>' +
          '  <% } %>' +
          '  <% if (introPage.introduction) { %>' +
          '    <div class="introduction"><%= introPage.introduction %></div>' +
          '  <% } %>' +
          '  <div class="buttons"><a href="#" class="qs-startbutton h5p-joubelui-button h5p-button"><%= introPage.startButtonText %></a></div>' +
          '</div>' +
          '<% } %>' +
          '<div tabindex="-1" class="qs-progress-announcer"></div>' +
          '<div class="questionset<% if (introPage.showIntroPage) { %> hidden<% } %>">' +
          '  <% for (var i=0; i<questions.length; i++) { %>' +
          '    <div class="question-container"></div>' +
          '  <% } %>' +
          '  <div class="qs-footer">' +
          '    <div class="qs-progress">' +
          '      <% if (progressType == "dots") { %>' +
          '        <ul class="dots-container" role="navigation">' +
          '          <% for (var i=0; i<questions.length; i++) { %>' +
          '           <li class="progress-item">' +
          '             <a href="#" ' +
          '               class="progress-dot unanswered<%' +
          '               if (disableBackwardsNavigation) { %> disabled <% } %>"' +
          '               aria-label="<%=' +
          '               texts.jumpToQuestion.replace("%d", i + 1).replace("%total", questions.length)' +
          '               + ", " + texts.unansweredText %>" tabindex="-1" ' +
          '               <% if (disableBackwardsNavigation) { %> aria-disabled="true" <% } %>' +
          '             ></a>' +
          '           </li>' +
          '          <% } %>' +
          '        </div>' +
          '      <% } else if (progressType == "textual") { %>' +
          '        <span class="progress-text"></span>' +
          '      <% } %>' +
          '    </div>' +
          '  </div>' +
          '</div>';

  var solutionButtonTemplate = params.endGame.showSolutionButton ?
    '    <button type="button" class="h5p-joubelui-button h5p-button qs-solutionbutton"><%= solutionButtonText %></button>':
    '';

  const retryButtonTemplate = params.endGame.showRetryButton ?
    '    <button type="button" class="h5p-joubelui-button h5p-button qs-retrybutton"><%= retryButtonText %></button>':
    '';

  var resulttemplate =
          '<div class="questionset-results">' +
          '  <div class="greeting"><%= message %></div>' +
          '  <div class="feedback-section">' +
          '    <div class="feedback-scorebar"></div>' +
          '    <div class="feedback-text"></div>' +
          '  </div>' +
          '  <% if (comment) { %>' +
          '  <div class="result-header"><%= comment %></div>' +
          '  <% } %>' +
          '  <% if (resulttext) { %>' +
          '  <div class="result-text"><%= resulttext %></div>' +
          '  <% } %>' +
          '  <div class="buttons">' +
          solutionButtonTemplate +
          retryButtonTemplate +
          '  </div>' +
          '</div>';

  var template = new EJS({text: texttemplate});
  var endTemplate = new EJS({text: resulttemplate});

  var initialParams = $.extend(true, {}, defaults, options);
  var poolOrder; // Order of questions in a pool
  var currentQuestion = 0;
  var questionInstances = [];
  var questionOrder; //Stores order of questions to allow resuming of question set
  var $myDom;
  var scoreBar;
  var up;
  var renderSolutions = false;
  var showingSolutions = false;
  contentData = contentData || {};

  // Bring question set up to date when resuming
  if (contentData.previousState) {
    if (contentData.previousState.progress) {
      currentQuestion = contentData.previousState.progress;
    }
    questionOrder = contentData.previousState.order;
  }

  /**
   * Randomizes questions in an array and updates an array containing their order
   * @param  {array} questions
   * @return {Object.<array, array>} questionOrdering
   */
  var randomizeQuestionOrdering = function (questions) {

    // Save the original order of the questions in a multidimensional array [[question0,0],[question1,1]...
    var questionOrdering = questions.map(function (questionInstance, index) {
      return [questionInstance, index];
    });

    // Shuffle the multidimensional array
    questionOrdering = H5P.shuffleArray(questionOrdering);

    // Retrieve question objects from the first index
    questions = [];
    for (var i = 0; i < questionOrdering.length; i++) {
      questions[i] = questionOrdering[i][0];
    }

    // Retrieve the new shuffled order from the second index
    var newOrder = [];
    for (var j = 0; j < questionOrdering.length; j++) {

      // Use a previous order if it exists
      if (contentData.previousState && contentData.previousState.questionOrder) {
        newOrder[j] = questionOrder[questionOrdering[j][1]];
      }
      else {
        newOrder[j] = questionOrdering[j][1];
      }
    }

    // Return the questions in their new order *with* their new indexes
    return {
      questions: questions,
      questionOrder: newOrder
    };
  };

  // Create a pool (a subset) of questions if necessary
  if (params.poolSize > 0) {

    // If a previous pool exists, recreate it
    if (contentData.previousState && contentData.previousState.poolOrder) {
      poolOrder = contentData.previousState.poolOrder;

      // Recreate the pool from the saved data
      var pool = [];
      for (var i = 0; i < poolOrder.length; i++) {
        pool[i] = params.questions[poolOrder[i]];
      }

      // Replace original questions with just the ones in the pool
      params.questions = pool;
    }
    else { // Otherwise create a new pool
      // Randomize and get the results
      var poolResult = randomizeQuestionOrdering(params.questions);
      var poolQuestions = poolResult.questions;
      poolOrder = poolResult.questionOrder;

      // Discard extra questions

      poolQuestions = poolQuestions.slice(0, params.poolSize);
      poolOrder = poolOrder.slice(0, params.poolSize);

      // Replace original questions with just the ones in the pool
      params.questions = poolQuestions;
    }
  }

  // Create the html template for the question container
  var $template = $(template.render(params));

  // Set overrides for questions
  var override;
  if (params.override.showSolutionButton || params.override.retryButton || params.override.checkButton === false) {
    override = {};
    if (params.override.showSolutionButton) {
      // Force "Show solution" button to be on or off for all interactions
      override.enableSolutionsButton =
          (params.override.showSolutionButton === 'on' ? true : false);
    }

    if (params.override.retryButton) {
      // Force "Retry" button to be on or off for all interactions
      override.enableRetry =
          (params.override.retryButton === 'on' ? true : false);
    }

    if (params.override.checkButton === false) {
      // Force "Check" button to be on or off for all interactions
      override.enableCheckButton = params.override.checkButton;
    }
  }

  /**
   * Generates question instances from H5P objects
   *
   * @param  {object} questions H5P content types to be created as instances
   * @return {array} Array of questions instances
   */
  var createQuestionInstancesFromQuestions = function (questions) {
    var result = [];
    // Create question instances from questions
    // Instantiate question instances
    for (var i = 0; i < questions.length; i++) {

      var question;
      // If a previous order exists, use it
      if (questionOrder !== undefined) {
        question = questions[questionOrder[i]];
      }
      else {
        // Use a generic order when initialzing for the first time
        question = questions[i];
      }

      if (override) {
        // Extend subcontent with the overrided settings.
        $.extend(question.params.behaviour, override);
      }

      question.params = question.params || {};
      var hasAnswers = contentData.previousState && contentData.previousState.answers;
      var questionInstance = H5P.newRunnable(question, contentId, undefined, undefined,
        {
          previousState: hasAnswers ? contentData.previousState.answers[i] : undefined,
          parent: self
        });
      questionInstance.on('resize', function () {
        up = true;
        self.trigger('resize');
      });
      result.push(questionInstance);
    }

    return result;
  };

  // Create question instances from questions given by params
  questionInstances = createQuestionInstancesFromQuestions(params.questions);

  // Randomize questions only on instantiation
  if (params.randomQuestions && contentData.previousState === undefined) {
    var result = randomizeQuestionOrdering(questionInstances);
    questionInstances = result.questions;
    questionOrder = result.questionOrder;
  }

  // Resize all interactions on resize
  self.on('resize', function () {
    if (up) {
      // Prevent resizing the question again.
      up = false;
      return;
    }

    for (var i = 0; i < questionInstances.length; i++) {
      questionInstances[i].trigger('resize');
    }
  });

  // Update button state.
  var _updateButtons = function () {
    // Verify that current question is answered when backward nav is disabled
    if (params.disableBackwardsNavigation) {
      if (questionInstances[currentQuestion].getAnswerGiven() &&
          questionInstances.length-1 !== currentQuestion) {
        questionInstances[currentQuestion].showButton('next');
      }
      else {
        questionInstances[currentQuestion].hideButton('next');
      }
    }

    var answered = true;
    for (var i = questionInstances.length - 1; i >= 0; i--) {
      answered = answered && (questionInstances[i]).getAnswerGiven();
    }

    if (currentQuestion === (params.questions.length - 1) &&
        questionInstances[currentQuestion]) {
      if (answered) {
        questionInstances[currentQuestion].showButton('finish');
      }
      else {
        questionInstances[currentQuestion].hideButton('finish');
      }
    }
  };

  var _stopQuestion = function (questionNumber) {
    if (questionInstances[questionNumber]) {
      pauseMedia(questionInstances[questionNumber]);
    }
  };

  var _showQuestion = function (questionNumber, preventAnnouncement) {
    // Sanitize input.
    if (questionNumber < 0) {
      questionNumber = 0;
    }
    if (questionNumber >= params.questions.length) {
      questionNumber = params.questions.length - 1;
    }

    currentQuestion = questionNumber;

    handleAutoPlay(currentQuestion);

    // Hide all questions
    $('.question-container', $myDom).hide().eq(questionNumber).show();

    if (questionInstances[questionNumber]) {
      // Trigger resize on question in case the size of the QS has changed.
      var instance = questionInstances[questionNumber];
      instance.setActivityStarted();
      if (instance.$ !== undefined) {
        instance.trigger('resize');
      }
    }

    // Update progress indicator
    // Test if current has been answered.
    if (params.progressType === 'textual') {
      $('.progress-text', $myDom).text(params.texts.textualProgress.replace("@current", questionNumber+1).replace("@total", params.questions.length));
    }
    else {
      // Set currentNess
      var previousQuestion = $('.progress-dot.current', $myDom).parent().index();
      if (previousQuestion >= 0) {
        toggleCurrentDot(previousQuestion, false);
        toggleAnsweredDot(previousQuestion, questionInstances[previousQuestion].getAnswerGiven());
      }
      toggleCurrentDot(questionNumber, true);
    }

    if (!preventAnnouncement) {
      // Announce question number of total, must use timeout because of buttons logic
      setTimeout(function () {
        var humanizedProgress = params.texts.readSpeakerProgress
          .replace('@current', (currentQuestion + 1).toString())
          .replace('@total', questionInstances.length.toString());

        $('.qs-progress-announcer', $myDom)
          .html(humanizedProgress)
          .show().focus();

        if (instance && instance.readFeedback) {
          instance.readFeedback();
        }
      }, 0);
    }

    // Remember where we are
    _updateButtons();
    self.trigger('resize');
    return currentQuestion;
  };

  /**
   * Handle autoplays, limit to one at a time
   *
   * @param {number} currentQuestionIndex
   */
  var handleAutoPlay = function (currentQuestionIndex) {
    for (var i = 0; i < questionInstances.length; i++) {
      questionInstances[i].pause();
    }

    var currentQuestion = params.questions[currentQuestionIndex];

    var hasAutoPlay = currentQuestion &&
        currentQuestion.params.media &&
        currentQuestion.params.media.params &&
        currentQuestion.params.media.params.playback &&
        currentQuestion.params.media.params.playback.autoplay;

    if (hasAutoPlay && typeof questionInstances[currentQuestionIndex].play === 'function') {
      questionInstances[currentQuestionIndex].play();
    }
  };



  /**
   * Show solutions for subcontent, and hide subcontent buttons.
   * Used for contracts with integrated content.
   * @public
   */
  var showSolutions = function () {
    showingSolutions = true;
    for (var i = 0; i < questionInstances.length; i++) {

      // Enable back and forth navigation in solution mode
      toggleDotsNavigation(true);
      if (i < questionInstances.length - 1) {
        questionInstances[i].showButton('next');
      }
      if (i > 0) {
        questionInstances[i].showButton('prev');
      }

      try {
        // Do not read answers
        questionInstances[i].toggleReadSpeaker(true);
        questionInstances[i].showSolutions();
        questionInstances[i].toggleReadSpeaker(false);
      }
      catch (error) {
        H5P.error("subcontent does not contain a valid showSolutions function");
        H5P.error(error);
      }
    }
  };

  /**
   * Toggles whether dots are enabled for navigation
   */
  var toggleDotsNavigation = function (enable) {
    $('.progress-dot', $myDom).each(function () {
      $(this).toggleClass('disabled', !enable);
      $(this).attr('aria-disabled', enable ? 'false' : 'true');
      // Remove tabindex
      if (!enable) {
        $(this).attr('tabindex', '-1');
      }
    });
  };

  /**
   * Resets the task and every subcontent task.
   * Used for contracts with integrated content.
   * @public
   */
  var resetTask = function () {

    // Clear previous state to ensure questions are created cleanly
    contentData.previousState = [];

    showingSolutions = false;

    for (var i = 0; i < questionInstances.length; i++) {
      try {
        questionInstances[i].resetTask();

        // Hide back and forth navigation in normal mode
        if (params.disableBackwardsNavigation) {
          toggleDotsNavigation(false);

          // Check if first question is answered by default
          if (i === 0 && questionInstances[i].getAnswerGiven()) {
            questionInstances[i].showButton('next');
          }
          else {
            questionInstances[i].hideButton('next');
          }

          questionInstances[i].hideButton('prev');
        }
      }
      catch (error) {
        H5P.error("subcontent does not contain a valid resetTask function");
        H5P.error(error);
      }
    }

    // Hide finish button
    questionInstances[questionInstances.length - 1].hideButton('finish');

    // Mark all tasks as unanswered:
    $('.progress-dot').each(function (idx) {
      toggleAnsweredDot(idx, false);
    });

    //Force the last page to be reRendered
    rendered = false;

    if (params.poolSize > 0) {

      // Make new pool from params.questions
      // Randomize and get the results
      var poolResult = randomizeQuestionOrdering(initialParams.questions);
      var poolQuestions = poolResult.questions;
      poolOrder = poolResult.questionOrder;

      // Discard extra questions
      poolQuestions = poolQuestions.slice(0, params.poolSize);
      poolOrder = poolOrder.slice(0, params.poolSize);

      // Replace original questions with just the ones in the pool
      params.questions = poolQuestions;

      // Recreate the question instances
      questionInstances = createQuestionInstancesFromQuestions(params.questions);

      // Update buttons
      initializeQuestion();

    }
    else if (params.randomQuestions) {
      randomizeQuestions();
    }

  };

  var rendered = false;

  this.reRender = function () {
    rendered = false;
  };

  /**
   * Randomizes question instances
   */
  var randomizeQuestions = function () {

    var result = randomizeQuestionOrdering(questionInstances);
    questionInstances = result.questions;
    questionOrder = result.questionOrder;

    replaceQuestionsInDOM(questionInstances);
  };

  /**
   * Empty the DOM of all questions, attach new questions and update buttons
   *
   * @param  {type} questionInstances Array of questions to be attached to the DOM
   */
  var replaceQuestionsInDOM = function (questionInstances) {

    // Find all question containers and detach questions from them
    $('.question-container', $myDom).each(function () {
      $(this).children().detach();
    });

    // Reattach questions and their buttons in the new order
    for (var i = 0; i < questionInstances.length; i++) {

      var question = questionInstances[i];

      // Make sure styles are not being added twice
      $('.question-container:eq(' + i + ')', $myDom).attr('class', 'question-container');

      question.attach($('.question-container:eq(' + i + ')', $myDom));

      //Show buttons if necessary
      if (questionInstances[questionInstances.length -1] === question &&
          question.hasButton('finish')) {
        question.showButton('finish');
      }

      if (questionInstances[questionInstances.length -1] !== question &&
          question.hasButton('next')) {
        question.showButton('next');
      }

      if (questionInstances[0] !== question &&
          question.hasButton('prev') &&
          !params.disableBackwardsNavigation) {
        question.showButton('prev');
      }

      // Hide relevant buttons since the order has changed
      if (questionInstances[0] === question) {
        question.hideButton('prev');
      }

      if (questionInstances[questionInstances.length-1] === question) {
        question.hideButton('next');
      }

      if (questionInstances[questionInstances.length-1] !== question) {
        question.hideButton('finish');
      }
    }
  };

  var moveQuestion = function (direction) {
    if (params.disableBackwardsNavigation && !questionInstances[currentQuestion].getAnswerGiven()) {
      questionInstances[currentQuestion].hideButton('next');
      questionInstances[currentQuestion].hideButton('finish');
      return;
    }

    _stopQuestion(currentQuestion);
    if (currentQuestion + direction >= questionInstances.length) {
      _displayEndGame();
    }
    else {
      // Allow movement if backward navigation enabled or answer given
      _showQuestion(currentQuestion + direction);
    }
  };

  /**
   * Toggle answered state of dot at given index
   * @param {number} dotIndex Index of dot
   * @param {boolean} isAnswered True if is answered, False if not answered
   */
  var toggleAnsweredDot = function (dotIndex, isAnswered) {
    var $el = $('.progress-dot:eq(' + dotIndex +')', $myDom);

    // Skip current button
    if ($el.hasClass('current')) {
      return;
    }

    // Ensure boolean
    isAnswered = !!isAnswered;

    var label = params.texts.jumpToQuestion
      .replace('%d', (dotIndex + 1).toString())
      .replace('%total', $('.progress-dot', $myDom).length) +
      ', ' +
      (isAnswered ? params.texts.answeredText : params.texts.unansweredText);

    $el.toggleClass('unanswered', !isAnswered)
      .toggleClass('answered', isAnswered)
      .attr('aria-label', label);
  };

  /**
   * Toggle current state of dot at given index
   * @param dotIndex
   * @param isCurrent
   */
  var toggleCurrentDot = function (dotIndex, isCurrent) {
    var $el = $('.progress-dot:eq(' + dotIndex +')', $myDom);
    var texts = params.texts;
    var label = texts.jumpToQuestion
      .replace('%d', (dotIndex + 1).toString())
      .replace('%total', $('.progress-dot', $myDom).length);

    if (!isCurrent) {
      var isAnswered = $el.hasClass('answered');
      label += ', ' + (isAnswered ? texts.answeredText : texts.unansweredText);
    }
    else {
      label += ', ' + texts.currentQuestionText;
    }

    var disabledTabindex = params.disableBackwardsNavigation && !showingSolutions;
    $el.toggleClass('current', isCurrent)
      .attr('aria-label', label)
      .attr('tabindex', isCurrent && !disabledTabindex ? 0 : -1);
  };

  var _displayEndGame = function () {
    $('.progress-dot.current', $myDom).removeClass('current');
    if (rendered) {
      $myDom.children().hide().filter('.questionset-results').show();
      self.trigger('resize');
      return;
    }
    //Remove old score screen.
    $myDom.children().hide().filter('.questionset-results').remove();
    rendered = true;

    // Get total score.
    var finals = self.getScore();
    var totals = self.getMaxScore();

    var scoreString = H5P.Question.determineOverallFeedback(params.endGame.overallFeedback, finals / totals).replace('@score', finals).replace('@total', totals);
    var success = ((100 * finals / totals) >= params.passPercentage);

    /**
     * Makes our buttons behave like other buttons.
     *
     * @private
     * @param {string} classSelector
     * @param {function} handler
     */
    var hookUpButton = function (classSelector, handler) {
      $(classSelector, $myDom).click(handler).keypress(function (e) {
        if (e.which === 32) {
          handler();
          e.preventDefault();
        }
      });
    };

    var displayResults = function () {
      self.triggerXAPICompleted(self.getScore(), self.getMaxScore(), success);

      var eparams = {
        message: params.endGame.showResultPage ? params.endGame.message : params.endGame.noResultMessage,
        comment: params.endGame.showResultPage ? (success ? params.endGame.oldFeedback.successGreeting : params.endGame.oldFeedback.failGreeting) : undefined,
        resulttext: params.endGame.showResultPage ? (success ? params.endGame.oldFeedback.successComment : params.endGame.oldFeedback.failComment) : undefined,
        finishButtonText: params.endGame.finishButtonText,
        solutionButtonText: params.endGame.solutionButtonText,
        retryButtonText: params.endGame.retryButtonText
      };

      // Show result page.
      $myDom.children().hide();
      $myDom.append(endTemplate.render(eparams));

      if (params.endGame.showResultPage) {
        hookUpButton('.qs-solutionbutton', function () {
          showSolutions();
          $myDom.children().hide().filter('.questionset').show();
          _showQuestion(params.initialQuestion);
        });
        hookUpButton('.qs-retrybutton', function () {
          resetTask();
          $myDom.children().hide();

          var $intro = $('.intro-page', $myDom);
          if ($intro.length) {
            // Show intro
            $('.intro-page', $myDom).show();
            $('.qs-startbutton', $myDom).focus();
          }
          else {
            // Show first question
            $('.questionset', $myDom).show();
            _showQuestion(params.initialQuestion);
          }
        });

        if (scoreBar === undefined) {
          scoreBar = H5P.JoubelUI.createScoreBar(totals);
        }
        scoreBar.appendTo($('.feedback-scorebar', $myDom));
        $('.feedback-text', $myDom).html(scoreString);

        // Announce that the question set is complete
        setTimeout(function () {
          $('.qs-progress-announcer', $myDom)
            .html(eparams.message + '.' +
                  scoreString + '.' +
                  eparams.comment + '.' +
                  eparams.resulttext)
            .show().focus();
          scoreBar.setMaxScore(totals);
          scoreBar.setScore(finals);
        }, 0);
      }
      else {
        // Remove buttons and feedback section
        $('.qs-solutionbutton, .qs-retrybutton, .feedback-section', $myDom).remove();
      }

      self.trigger('resize');
    };

    if (params.endGame.showAnimations) {
      var videoData = success ? params.endGame.successVideo : params.endGame.failVideo;
      if (videoData) {
        $myDom.children().hide();
        var $videoContainer = $('<div class="video-container"></div>').appendTo($myDom);

        var video = new H5P.Video({
          sources: videoData,
          fitToWrapper: true,
          controls: false,
          autoplay: false
        }, contentId);
        video.on('stateChange', function (event) {
          if (event.data === H5P.Video.ENDED) {
            displayResults();
            $videoContainer.hide();
          }
        });
        video.attach($videoContainer);
        // Resize on video loaded
        video.on('loaded', function () {
          self.trigger('resize');
        });
        video.play();

        if (params.endGame.skippable) {
          $('<a class="h5p-joubelui-button h5p-button skip">' + params.endGame.skipButtonText + '</a>').click(function () {
            video.pause();
            $videoContainer.hide();
            displayResults();
          }).appendTo($videoContainer);
        }

        return;
      }
    }
    // Trigger finished event.
    displayResults();
    self.trigger('resize');
  };

  var registerImageLoadedListener = function (question) {
    H5P.on(question, 'imageLoaded', function () {
      self.trigger('resize');
    });
  };

  /**
   * Initialize a question and attach it to the DOM
   *
   */
  function initializeQuestion() {
    // Attach questions
    for (var i = 0; i < questionInstances.length; i++) {
      var question = questionInstances[i];

      // Make sure styles are not being added twice
      $('.question-container:eq(' + i + ')', $myDom).attr('class', 'question-container');

      question.attach($('.question-container:eq(' + i + ')', $myDom));

      // Listen for image resize
      registerImageLoadedListener(question);

      // Add finish button
      question.addButton('finish', params.texts.finishButton,
        moveQuestion.bind(this, 1), false);

      // Add next button
      question.addButton('next', '', moveQuestion.bind(this, 1),
        !params.disableBackwardsNavigation || !!question.getAnswerGiven(), {
          href: '#', // Use href since this is a navigation button
          'aria-label': params.texts.nextButton
        });

      // Add previous button
      question.addButton('prev', '', moveQuestion.bind(this, -1),
        !(questionInstances[0] === question || params.disableBackwardsNavigation), {
          href: '#', // Use href since this is a navigation button
          'aria-label': params.texts.prevButton
        });

      // Hide next button if it is the last question
      if (questionInstances[questionInstances.length -1] === question) {
        question.hideButton('next');
      }

      question.on('xAPI', function (event) {
        var shortVerb = event.getVerb();
        if (shortVerb === 'interacted' ||
          shortVerb === 'answered' ||
          shortVerb === 'attempted') {
          toggleAnsweredDot(currentQuestion,
            questionInstances[currentQuestion].getAnswerGiven());
          _updateButtons();
        }
        if (shortVerb === 'completed') {
          // An activity within this activity is not allowed to send completed events
          event.setVerb('answered');
        }
        if (event.data.statement.context.extensions === undefined) {
          event.data.statement.context.extensions = {};
        }
        event.data.statement.context.extensions['http://id.tincanapi.com/extension/ending-point'] = currentQuestion + 1;
      });

      // Mark question if answered
      toggleAnsweredDot(i, question.getAnswerGiven());
    }
  }

  this.attach = function (target) {
    if (this.isRoot()) {
      this.setActivityStarted();
    }
    if (typeof(target) === "string") {
      $myDom = $('#' + target);
    }
    else {
      $myDom = $(target);
    }

    // Render own DOM into target.
    $myDom.children().remove();
    $myDom.append($template);
    if (params.backgroundImage !== undefined) {
      $myDom.css({
        overflow: 'hidden',
        background: '#fff url("' + H5P.getPath(params.backgroundImage.path, contentId) + '") no-repeat 50% 50%',
        backgroundSize: '100% auto'
      });
    }

    if (params.introPage.backgroundImage !== undefined) {
      var $intro = $myDom.find('.intro-page');
      if ($intro.length) {
        var bgImg = params.introPage.backgroundImage;
        var bgImgRatio = (bgImg.height / bgImg.width);
        $intro.css({
          background: '#fff url("' + H5P.getPath(bgImg.path, contentId) + '") no-repeat 50% 50%',
          backgroundSize: 'auto 100%',
          minHeight: bgImgRatio * +window.getComputedStyle($intro[0]).width.replace('px','')
        });
      }
    }

    initializeQuestion();

    // Allow other libraries to add transitions after the questions have been inited
    $('.questionset', $myDom).addClass('started');

    $('.qs-startbutton', $myDom)
      .click(function () {
        $(this).parents('.intro-page').hide();
        $('.questionset', $myDom).show();
        _showQuestion(params.initialQuestion);
        event.preventDefault();
      })
      .keydown(function (event) {
        switch (event.which) {
          case 13: // Enter
          case 32: // Space
            $(this).parents('.intro-page').hide();
            $('.questionset', $myDom).show();
            _showQuestion(params.initialQuestion);
            event.preventDefault();
        }
      });

    /**
     * Triggers changing the current question.
     *
     * @private
     * @param {Object} [event]
     */
    var handleProgressDotClick = function (event) {
      // Disable dots when backward nav disabled
      event.preventDefault();
      if (params.disableBackwardsNavigation && !showingSolutions) {
        return;
      }
      _stopQuestion(currentQuestion);
      _showQuestion($(this).parent().index());
    };

    // Set event listeners.
    $('.progress-dot', $myDom).click(handleProgressDotClick).keydown(function (event) {
      var $this = $(this);
      switch (event.which) {
        case 13: // Enter
        case 32: // Space
          handleProgressDotClick.call(this, event);
          break;

        case 37: // Left Arrow
        case 38: // Up Arrow
          // Go to previous dot
          var $prev = $this.parent().prev();
          if ($prev.length) {
            $prev.children('a').attr('tabindex', '0').focus();
            $this.attr('tabindex', '-1');
          }
          break;

        case 39: // Right Arrow
        case 40: // Down Arrow
          // Go to next dot
          var $next = $this.parent().next();
          if ($next.length) {
            $next.children('a').attr('tabindex', '0').focus();
            $this.attr('tabindex', '-1');
          }
          break;
      }
    });



    // Hide all but current question
    _showQuestion(currentQuestion, true);

    if (renderSolutions) {
      showSolutions();
    }
    // Update buttons in case they have changed (restored user state)
    _updateButtons();

    this.trigger('resize');

    return this;
  };

  // Get current score for questionset.
  this.getScore = function () {
    var score = 0;
    for (var i = questionInstances.length - 1; i >= 0; i--) {
      score += questionInstances[i].getScore();
    }
    return score;
  };

  // Get total score possible for questionset.
  this.getMaxScore = function () {
    var score = 0;
    for (var i = questionInstances.length - 1; i >= 0; i--) {
      score += questionInstances[i].getMaxScore();
    }
    return score;
  };

  /**
   * @deprecated since version 1.9.2
   * @returns {number}
   */
  this.totalScore = function () {
    return this.getMaxScore();
  };

  /**
   * Gather copyright information for the current content.
   *
   * @returns {H5P.ContentCopyrights}
   */
  this.getCopyrights = function () {
    var info = new H5P.ContentCopyrights();

    // IntroPage Background
    if (params.introPage !== undefined && params.introPage.backgroundImage !== undefined && params.introPage.backgroundImage.copyright !== undefined) {
      var introBackground = new H5P.MediaCopyright(params.introPage.backgroundImage.copyright);
      introBackground.setThumbnail(new H5P.Thumbnail(H5P.getPath(params.introPage.backgroundImage.path, contentId), params.introPage.backgroundImage.width, params.introPage.backgroundImage.height));
      info.addMedia(introBackground);
    }

    // Background
    if (params.backgroundImage !== undefined && params.backgroundImage.copyright !== undefined) {
      var background = new H5P.MediaCopyright(params.backgroundImage.copyright);
      background.setThumbnail(new H5P.Thumbnail(H5P.getPath(params.backgroundImage.path, contentId), params.backgroundImage.width, params.backgroundImage.height));
      info.addMedia(background);
    }

    // Questions
    var questionCopyrights;
    for (var i = 0; i < questionInstances.length; i++) {
      var instance = questionInstances[i];
      var instanceParams = params.questions[i].params;

      questionCopyrights = undefined;

      if (instance.getCopyrights !== undefined) {
        // Use the instance's own copyright generator
        questionCopyrights = instance.getCopyrights();
      }
      if (questionCopyrights === undefined) {
        // Create a generic flat copyright list
        questionCopyrights = new H5P.ContentCopyrights();
        H5P.findCopyrights(questionCopyrights, instanceParams.params, contentId,{
          metadata: instanceParams.metadata,
          machineName: instanceParams.library.split(' ')[0]
        });
      }

      // Determine label
      var label = (params.texts.questionLabel + ' ' + (i + 1));
      if (instanceParams.params.contentName !== undefined) {
        label += ': ' + instanceParams.params.contentName;
      }
      else if (instance.getTitle !== undefined) {
        label += ': ' + instance.getTitle();
      }
      questionCopyrights.setLabel(label);

      // Add info
      info.addContent(questionCopyrights);
    }

    // Success video
    var video;
    if (params.endGame.successVideo !== undefined && params.endGame.successVideo.length > 0) {
      video = params.endGame.successVideo[0];
      if (video.copyright !== undefined) {
        info.addMedia(new H5P.MediaCopyright(video.copyright));
      }
    }

    // Fail video
    if (params.endGame.failVideo !== undefined && params.endGame.failVideo.length > 0) {
      video = params.endGame.failVideo[0];
      if (video.copyright !== undefined) {
        info.addMedia(new H5P.MediaCopyright(video.copyright));
      }
    }

    return info;
  };
  this.getQuestions = function () {
    return questionInstances;
  };
  this.showSolutions = function () {
    renderSolutions = true;
  };

  /**
   * Stop the given element's playback if any.
   *
   * @param {object} instance
   */
  var pauseMedia = function (instance) {
    try {
      if (instance.pause !== undefined &&
        (instance.pause instanceof Function ||
        typeof instance.pause === 'function')) {
        instance.pause();
      }
    }
    catch (err) {
      // Prevent crashing, log error.
      H5P.error(err);
    }
  };

  /**
   * Returns the complete state of question set and sub-content
   *
   * @returns {Object} current state
   */
  this.getCurrentState = function () {
    return {
      progress: showingSolutions ? questionInstances.length - 1 : currentQuestion,
      answers: questionInstances.map(function (qi) {
        return qi.getCurrentState();
      }),
      order: questionOrder,
      poolOrder: poolOrder
    };
  };

  /**
   * Generate xAPI object definition used in xAPI statements.
   * @return {Object}
   */
  var getxAPIDefinition = function () {
    var definition = {};

    definition.interactionType = 'compound';
    definition.type = 'http://adlnet.gov/expapi/activities/cmi.interaction';
    definition.description = {
      'en-US': ''
    };

    return definition;
  };

  /**
   * Add the question itself to the definition part of an xAPIEvent
   */
  var addQuestionToXAPI = function (xAPIEvent) {
    var definition = xAPIEvent.getVerifiedStatementValue(['object', 'definition']);
    $.extend(definition, getxAPIDefinition());
  };

  /**
   * Get xAPI data from sub content types
   *
   * @param {Object} metaContentType
   * @returns {array}
   */
  var getXAPIDataFromChildren = function (metaContentType) {
    return metaContentType.getQuestions().map(function (question) {
      return question.getXAPIData();
    });
  };

  /**
   * 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);
    xAPIEvent.setScoredResult(this.getScore(),
      this.getMaxScore(),
      this,
      true,
      this.getScore() === this.getMaxScore()
    );
    return {
      statement: xAPIEvent.data.statement,
      children: getXAPIDataFromChildren(this)
    };
  };
};

H5P.QuestionSet.prototype = Object.create(H5P.EventDispatcher.prototype);
H5P.QuestionSet.prototype.constructor = H5P.QuestionSet;
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n,i=r.chapters[t];"DONE"===(n=i.maxTasks?r.getChapterStatus(i):r.isChapterRead(i)&&e?"DONE":"BLANK")&&r.handleChapterCompletion(t),r.sideBar.updateChapterProgressIndicator(t,n)}},r.getChapterId=function(t){return t=t.replace("h5p-interactive-book-chapter-",""),r.chapters.map((function(t){return t.instance.subContentId})).indexOf(t)},r.handleChapterCompletion=function(t){var e=!(arguments.length>1&&void 0!==arguments[1])||arguments[1],n=r.chapters[t];if(!0!==n.isSummary){if(!e)return n.completed=!1,r.completed=!1,void r.trigger("bookCompleted",{completed:r.completed});n.completed||(n.completed=!0,n.instance.triggerXAPIScored(n.instance.getScore(),n.instance.getMaxScore(),"completed")),!r.completed&&r.chapters.filter((function(t){return!t.isSummary})).every((function(t){return t.completed}))&&(r.completed=!0,r.trigger("bookCompleted",{completed:r.completed}))}},r.shouldFooterBeHidden=function(){return r.isFullscreen},r.getContainerWidth=function(){return r.pageContent&&r.pageContent.container?r.pageContent.container.offsetWidth:0},r.changeChapter=function(t){r.pageContent.changeChapter(t,r.newHandler),r.statusBarHeader.updateStatusBar(),r.statusBarFooter.updateStatusBar(),r.newHandler.redirectFromComponent=!1},r.breakpoints=function(){return[{className:r.smallSurface,shouldAdd:function(t){return t<43}},{className:r.mediumSurface,shouldAdd:function(t){return t>=43&&t<60}},{className:r.largeSurface,shouldAdd:function(t){return t>=60}}]},H5P.on(X(X(r)),"respondChangeHash",(function(){var t=i.extractFragmentsFromURL(a.validateFragments,r.hashWindow);t.h5pbookid&&String(t.h5pbookid)===String(a.contentId)&&r.redirectChapter(t)})),H5P.on(X(X(r)),"changeHash",(function(t){String(t.data.h5pbookid)===String(r.contentId)&&(r.hashWindow.location.hash=t.data.newHash)})),H5P.externalDispatcher.on("xAPI",(function(t){var e=["answered","completed","interacted","attempted"].indexOf(t.getVerb())>-1,n=a.chapters.length;a!==this&&e&&n&&a.setSectionStatusByID(this.subContentId||this.contentData.subContentId,a.activeChapter)})),r.redirectChapter=function(t){r.newHandler.redirectFromComponent||(t.h5pbookid&&String(t.h5pbookid)===String(a.contentId)?a.newHandler=t:a.newHandler={chapter:"h5p-interactive-book-chapter-".concat(a.chapters[0].instance.subContentId),h5pbookid:a.h5pbookid}),a.changeChapter(!1)},r.setSectionStatusByID=function(t,e){r.chapters[e].sections.forEach((function(n,i){var o=n.instance;o.subContentId!==t||n.taskDone||(n.taskDone=!o.getAnswerGiven||o.getAnswerGiven(),r.sideBar.setSectionMarker(e,i),n.taskDone&&(r.chapters[e].tasksLeft-=1),r.updateChapterProgress(e))}))},r.addHashListener=function(t){t.addEventListener("hashchange",(function(t){H5P.trigger(X(X(r)),"respondChangeHash",t)})),r.hashWindow=t};try{r.addHashListener(top)}catch(t){if(!(t instanceof DOMException))throw t;r.addHashListener(window)}r.displayCover=function(t){r.hideAllElements(!0),t.append(r.cover.container),t.addClass("covered")},r.attach=function(t){r.mainWrapper=t,t.addClass("h5p-interactive-book h5p-scrollable-fullscreen"),r.isEdge18orEarlier()&&t.addClass("edge-18"),r.setWrapperClassFromRatio(r.mainWrapper),r.cover&&r.displayCover(t),t.append(r.statusBarHeader.wrapper);var e=r.pageContent.container.firstChild;e&&r.pageContent.container.insertBefore(r.sideBar.container,e),t.append(r.pageContent.container),t.append(r.statusBarFooter.wrapper),r.$wrapper=t,r.params.behaviour.defaultTableOfContents&&!r.isSmallSurface()&&r.trigger("toggleMenu"),r.pageContent.updateFooter()},r.isEdge18orEarlier=function(){var t=window.navigator.userAgent,e=t.indexOf("Edge/");if(e<0)return!1;var n=t.substring(e+5,t.indexOf(".",e));return parseInt(n)<=18},r.hideAllElements=function(t){var e=[this.statusBarHeader.wrapper,this.statusBarFooter.wrapper,this.pageContent.container];t?e.forEach((function(t){t.classList.add("h5p-content-hidden"),t.classList.add("h5p-interactive-book-cover-present")})):e.forEach((function(t){t.classList.remove("h5p-content-hidden"),t.classList.remove("h5p-interactive-book-cover-present")}))},r.params.showCoverPage&&(r.cover=new k(r.params.bookCover,o.metadata.title,r.l10n.read,n,X(X(r))));var c=P({},o,{parent:X(X(r))});return r.pageContent=new U(r.params,n,c,X(X(r)),{l10n:{markAsFinished:r.l10n.markAsFinished},behaviour:r.params.behaviour}),r.chapters=r.pageContent.getChapters(),r.sideBar=new A(r.params,n,o.metadata.title,X(X(r))),r.statusBarHeader=new v(n,r.chapters.length,X(X(r)),{l10n:r.l10n,a11y:r.params.a11y,behaviour:r.params.behaviour,displayFullScreenButton:!0},"h5p-interactive-book-status-header"),r.statusBarFooter=new v(n,r.chapters.length,X(X(r)),{l10n:r.l10n,a11y:r.params.a11y,behaviour:r.params.behaviour},"h5p-interactive-book-status-footer"),r.hasCover()?(r.hideAllElements(!0),r.on("coverRemoved",(function(){r.hideAllElements(!1),r.trigger("resize"),r.setActivityStarted(),r.statusBarHeader.progressBar.progress.focus()}))):r.setActivityStarted(),r.hasValidChapters()&&(r.statusBarHeader.updateStatusBar(),r.statusBarFooter.updateStatusBar()),r}var n,r,o;return function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function");t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,writable:!0,configurable:!0}}),e&&V(t,e)}(e,H5P.EventDispatcher),n=e,o=[{key:"sanitizeConfig",value:function(t){var e=t.read,n=void 0===e?"Read":e,r=t.displayTOC,i=void 0===r?"Display &#039;Table of contents&#039;":r,o=t.hideTOC,a=void 0===o?"Hide &#039;Table of contents&#039;":o,c=t.nextPage,s=void 0===c?"Next page":c,u=t.previousPage,A=void 0===u?"Previous page":u,l=t.chapterCompleted,p=void 0===l?"Page completed!":l,h=t.partCompleted,f=void 0===h?"@pages of @total completed":h,d=t.incompleteChapter,g=void 0===d?"Incomplete page":d,v=t.navigateToTop,m=void 0===v?"Navigate to the top":v,y=t.markAsFinished,b=void 0===y?"I have finished this page":y,M=t.fullscreen,I=void 0===M?"Fullscreen":M,k=t.exitFullscreen,E=void 0===k?"Exit fullscreen":k,w=t.bookProgressSubtext,N=void 0===w?"@count of @total pages":w,L=t.interactionsProgressSubtext,x=void 0===L?"@count of @total interactions":L,T=t.submitReport,C=void 0===T?"Submit Report":T,j=t.restartLabel,B=void 0===j?"Restart":j,S=t.summaryHeader,D=void 0===S?"Summary":S,O=t.allInteractions,Q=void 0===O?"All interactions":O,z=t.unansweredInteractions,U=void 0===z?"Unanswered interactions":z,F=t.scoreText,P=void 0===F?"@score / @maxscore":F,R=t.leftOutOfTotalCompleted,G=void 0===R?"@left of @max interactinos completed":R,H=t.noInteractions,W=void 0===H?"No interactions":H,J=t.score,_=void 0===J?"Score":J,V=t.summaryAndSubmit,X=void 0===V?"Summary & submit":V,Z=t.noChapterInteractionBoldText,K=void 0===Z?"You have not interacted with any pages.":Z,q=t.noChapterInteractionText,$=void 0===q?"You have to interact with at least one page before you can see the summary.":q,tt=t.yourAnswersAreSubmittedForReview,et=void 0===tt?"Your answers are submitted for review!":tt,nt=t.bookProgress,rt=void 0===nt?"Book progress":nt,it=t.interactionsProgress,ot=void 0===it?"Interactions progress":it,at=t.totalScoreLabel,ct=void 0===at?"Total score":at,st=Y(t,["read","displayTOC","hideTOC","nextPage","previousPage","chapterCompleted","partCompleted","incompleteChapter","navigateToTop","markAsFinished","fullscreen","exitFullscreen","bookProgressSubtext","interactionsProgressSubtext","submitReport","restartLabel","summaryHeader","allInteractions","unansweredInteractions","scoreText","leftOutOfTotalCompleted","noInteractions","score","summaryAndSubmit","noChapterInteractionBoldText","noChapterInteractionText","yourAnswersAreSubmittedForReview","bookProgress","interactionsProgress","totalScoreLabel"]);return st.chapters=st.chapters.map((function(t){return t.params.content=t.params.content.filter((function(t){return t.content})),t})).filter((function(t){return t.params.content&&t.params.content.length>0})),st.behaviour.displaySummary=void 0===st.behaviour.displaySummary||st.behaviour.displaySummary,st.l10n={read:n,displayTOC:i,hideTOC:a,nextPage:s,previousPage:A,chapterCompleted:p,partCompleted:f,incompleteChapter:g,navigateToTop:m,markAsFinished:b,fullscreen:I,exitFullscreen:E,bookProgressSubtext:N,interactionsProgressSubtext:x,submitReport:C,restartLabel:B,summaryHeader:D,allInteractions:Q,unansweredInteractions:U,scoreText:P,leftOutOfTotalCompleted:G,noInteractions:W,score:_,summaryAndSubmit:X,noChapterInteractionBoldText:K,noChapterInteractionText:$,yourAnswersAreSubmittedForReview:et,bookProgress:rt,interactionsProgress:ot,totalScoreLabel:ct},st}}],(r=null)&&W(n.prototype,r),o&&W(n,o),e}();H5P=H5P||{},H5P.InteractiveBook=Z}]);;