var H5P = H5P || {};

/**
 * Constructor.
 *
 * @param {Object} params Options for this library.
 * @param {Number} id Content identifier
 * @returns {undefined}
 */
(function ($) {
  H5P.Image = function (params, id, extras) {
    H5P.EventDispatcher.call(this);
    this.extras = extras;

    if (params.file === undefined || !(params.file instanceof Object)) {
      this.placeholder = true;
    }
    else {
      this.source = H5P.getPath(params.file.path, id);
      this.width = params.file.width;
      this.height = params.file.height;
    }

    this.alt = (!params.decorative && params.alt !== undefined) ?
      this.stripHTML(this.htmlDecode(params.alt)) :
      '';

    if (params.title !== undefined) {
      this.title = this.stripHTML(this.htmlDecode(params.title));
    }
  };

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

  /**
   * Wipe out the content of the wrapper and put our HTML in it.
   *
   * @param {jQuery} $wrapper
   * @returns {undefined}
   */
  H5P.Image.prototype.attach = function ($wrapper) {
    var self = this;
    var source = this.source;

    if (self.$img === undefined) {
      if(self.placeholder) {
        self.$img = $('<div>', {
          width: '100%',
          height: '100%',
          class: 'h5p-placeholder',
          title: this.title === undefined ? '' : this.title,
          on: {
            load: function () {
              self.trigger('loaded');
            }
          }
        });
      } else {
        self.$img = $('<img>', {
          width: '100%',
          height: '100%',
          src: source,
          alt: this.alt,
          title: this.title === undefined ? '' : this.title,
          on: {
            load: function () {
              self.trigger('loaded');
            }
          }
        });
      }
    }

    $wrapper.addClass('h5p-image').html(self.$img);
  };

  /**
   * Retrieve decoded HTML encoded string.
   *
   * @param {string} input HTML encoded string.
   * @returns {string} Decoded string.
   */
  H5P.Image.prototype.htmlDecode = function (input) {
    const dparser = new DOMParser().parseFromString(input, 'text/html');
    return dparser.documentElement.textContent;
  };

  /**
   * Retrieve string without HTML tags.
   *
   * @param {string} input Input string.
   * @returns {string} Output string.
   */
  H5P.Image.prototype.stripHTML = function (html) {
    const div = document.createElement('div');
    div.innerHTML = html;
    return div.textContent || div.innerText || '';
  };

  return H5P.Image;
}(H5P.jQuery));
;H5P.AdvancedText = (function ($, EventDispatcher) {

  /**
   * A simple library for displaying text with advanced styling.
   *
   * @class H5P.AdvancedText
   * @param {Object} parameters
   * @param {Object} [parameters.text='New text']
   * @param {number} id
   */
  function AdvancedText(parameters, id) {
    var self = this;
    EventDispatcher.call(this);

    var html = (parameters.text === undefined ? '<em>New text</em>' : parameters.text);

    /**
     * Wipe container and add text html.
     *
     * @alias H5P.AdvancedText#attach
     * @param {H5P.jQuery} $container
     */
    self.attach = function ($container) {
      $container.addClass('h5p-advanced-text').html(html);
    };
  }

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

  return AdvancedText;

})(H5P.jQuery, H5P.EventDispatcher);
;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;
    }

    // Fallback if column is empty
    if (params.content === undefined) {
      params.content = [];
    }

    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);

      // Keep track of all instances that are tasks
      const taskInstances = [];

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

      // For H5P.Row, we'll retrieve the actual task instances
      if (library === 'H5P.Row') {
        const rowColumns = instance.getInstances();

        // A row can have several columns
        for (const rowColumn of rowColumns) {

          // And each row column can have several content types,
          // some of which might be tasks
          const rowColumnInstances = rowColumn.getInstances();
          for (const rowColumnInstance of rowColumnInstances) {
            if (Column.isTask(rowColumnInstance)) {
              taskInstances.push(rowColumnInstance);
            }
          }
        }
      }

      for (const task of taskInstances) {
        task.on('xAPI', trackScoring(numTasks));
        numTasks++;
      }

      if (library === 'H5P.Image') {
        // 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, content) {
      // Determine separator spacing
      var thisHasMargin = (hasMargins.indexOf(libraryName) !== -1);

      if (libraryName === 'H5P.Row') {
        let lastContent = null;
        let contentCount = content.params?.columns?.reduce((count, column) => {
          const contents = column.content?.params?.content;
          count += contents?.length ?? 0;
          if (contents?.length > 0) {
            lastContent = column.content.params.content[contents.length-1];
          }
          return count;
        }, 0);

        // To avoid messy margin computation, separator setting should be disabled when there is more
        // than a single content inside a row. We also don't want a separator if we don't have any content
        if (useSeparator === 'auto' && (contentCount > 1 || contentCount === 0)) {
          useSeparator = 'disabled';
        } else if (contentCount > 0) {
          // If we only have one content, we want to follow the same procedure as if that content was
          // not wrapped on Row and RowColumn. 
          addSeparator(lastContent.library.split(' ')[0], useSeparator ?? 'auto');
          return;
        } else {
          // No separator.
          return;
        }
      }

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

        // Create separator element
        let separator = document.createElement('div');

        // 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, content.content);
        }

        // 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) {
      let childData = [];

      children.forEach(child => {
        if (child.libraryInfo.machineName === 'H5P.Row') {
          childData.push(...child.getXAPIDataFromChildren());
        }
        else if (typeof child.getXAPIData == 'function') {
          childData.push(child.getXAPIData());
        }
      });

      return childData.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',
    'H5P.MultiMediaChoice'
  ];

  /**
   * 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 override…)
   *
   * @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 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 || {};

/**
 * H5P-Text Utilities
 *
 * Some functions that can be useful when dealing with texts in H5P.
 *
 * @param {H5P.jQuery} $
 */
H5P.TextUtilities = function () {
  'use strict';
  /**
   * Create Text Utilities.
   *
   * Might be needed later.
   *
   * @constructor
   */
  function TextUtilities () {
  }

  // Inheritance
  TextUtilities.prototype = Object.create(H5P.EventDispatcher.prototype);
  TextUtilities.prototype.constructor = TextUtilities;

  /** @constant {object} */
  TextUtilities.WORD_DELIMITER = /[\s.?!,\';\"]/g;

  /**
   * Check if a candidate string is considered isolated (in a larger string) by
   * checking the symbol before and after the candidate.
   *
   * @param {string} candidate - String to be looked for.
   * @param {string} text - (Larger) string that should contain candidate.
   * @param {object} params - Parameters.
   * @param {object} params.delimiter - Regular expression containing symbols used to isolate the candidate.
   * @return {boolean} True if string is isolated.
   */
  TextUtilities.isIsolated = function (candidate, text, params) {
    // Sanitization
    if (!candidate || !text) {
      return;
    }
    var delimiter = (!!params && !!params.delimiter) ? params.delimiter : TextUtilities.WORD_DELIMITER;

    var pos = (!!params && !!params.index && typeof params.index === 'number') ? params.index : text.indexOf(candidate);
    if (pos < 0 || pos > text.length-1) {
      return false;
    }

    var pred = (pos === 0 ? '' : text[pos - 1].replace(delimiter, ''));
    var succ = (pos + candidate.length === text.length ? '' : text[pos + candidate.length].replace(delimiter, ''));

    if (pred !== '' || succ !== '') {
      return false;
    }
    return true;
  };

  /**
   * Check whether two strings are considered to be similar.
   * The similarity is temporarily computed by word length and number of number of operations
   * required to change one word into the other (Damerau-Levenshtein). It's subject to
   * change, cmp. https://github.com/otacke/udacity-machine-learning-engineer/blob/master/submissions/capstone_proposals/h5p_fuzzy_blanks.md
   *
   * @param {String} string1 - String #1.
   * @param {String} string2 - String #2.
   * @param {object} params - Parameters.
   * @return {boolean} True, if strings are considered to be similar.
   */
  TextUtilities.areSimilar = function (string1, string2) {
    // Sanitization
    if (!string1 || typeof string1 !== 'string') {
      return;
    }
    if (!string2 || typeof string2 !== 'string') {
      return;
    }

    // Just temporariliy this unflexible. Will be configurable via params.
    var length = Math.min(string1.length, string2.length);
    var levenshtein = H5P.TextUtilities.computeLevenshteinDistance(string1, string2, true);
    if (levenshtein === 0) {
      return true;
    }
    if ((length > 9) && (levenshtein <= 2)) {
      return true;
    }
    if ((length > 3) && (levenshtein <= 1)) {
      return true;
    }
    return false;
  };

  /**
   * Compute the (Damerau-)Levenshtein distance for two strings.
   *
   * The (Damerau-)Levenshtein distance that is returned is equivalent to the
   * number of operations that are necessary to transform one string into the
   * other. Consequently, lower numbers indicate higher similarity between the
   * two strings.
   *
   * While the Levenshtein distance counts deletions, insertions and mismatches,
   * the Damerau-Levenshtein distance also counts swapping two characters as
   * only one operation (instead of two mismatches), because this seems to
   * happen quite often.
   *
   * See http://en.wikipedia.org/wiki/Damerau%E2%80%93Levenshtein_distance for details
   *
   * @public
   * @param {string} str1 - String no. 1.
   * @param {string} str2 - String no. 2.
   * @param {boolean} [countSwapping=false] - If true, swapping chars will count as operation.
   * @returns {number} Distance.
   */
  TextUtilities.computeLevenshteinDistance = function(str1, str2, countSwapping) {
    // sanity checks
    if (typeof str1 !== 'string' || typeof str2 !== 'string') {
      return undefined;
    }
    if (countSwapping && typeof countSwapping !== 'boolean') {
      countSwapping = false;
    }

    // degenerate cases
    if (str1 === str2) {
      return 0;
    }
    if (str1.length === 0) {
      return str2.length;
    }
    if (str2.length === 0) {
      return str1.length;
    }

    // counter variables
    var i, j;

    // indicates characters that don't match
    var cost;

    // matrix for storing distances
    var distance = [];

    // initialization
    for (i = 0; i <= str1.length; i++) {
      distance[i] = [i];
    }
    for (j = 0; j <= str2.length; j++) {
      distance[0][j] = j;
    }

    // computation
    for (i = 1; i <= str1.length; i++) {
      for (j = 1; j <= str2.length; j++) {
        cost = (str1[i-1] === str2[j-1]) ? 0 : 1;
        distance[i][j] = Math.min(
          distance[i-1][j] + 1,     // deletion
          distance[i][j-1] + 1,     // insertion
          distance[i-1][j-1] + cost // mismatch
        );
        // in Damerau-Levenshtein distance, transpositions are operations
        if (countSwapping) {
          if (i > 1 && j > 1 && str1[i-1] === str2[j-2] && str1[i-2] === str2[j-1]) {
            distance[i][j] = Math.min(distance[i][j], distance[i-2][j-2] + cost);
          }
        }
      }
    }
    return distance[str1.length][str2.length];
  };

  /**
   * Compute the Jaro(-Winkler) distance for two strings.
   *
   * The Jaro(-Winkler) distance will return a value between 0 and 1 indicating
   * the similarity of two strings. The higher the value, the more similar the
   * strings are.
   *
   * See https://en.wikipedia.org/wiki/Jaro%E2%80%93Winkler_distance for details
   *
   * It seems that a more generalized implementation of Winkler's modification
   * can improve the results. This might be implemented later.
   * http://disi.unitn.it/~p2p/RelatedWork/Matching/Hermans_bnaic-2012.pdf
   *
   * @public
   * @param {string} str1 - String no. 1.
   * @param {string} str2 - String no. 2.
   * @param {boolean} [favorSameStart=false] - If true, strings with same start get higher distance value.
   * @param {boolean} [longTolerance=false] - If true, Winkler's tolerance for long words will be used.
   * @returns {number} Distance.
   */
  TextUtilities.computeJaroDistance = function(str1, str2, favorSameStart, longTolerance) {
    // sanity checks
    if (typeof str1 !== 'string' || typeof str2 !== 'string') {
      return undefined;
    }
    if (favorSameStart && typeof favorSameStart !== 'boolean') {
      favorSameStart = false;
    }
    if (longTolerance && typeof longTolerance !== 'boolean') {
      longTolerance = false;
    }

    // degenerate cases
    if (str1.length === 0 || str2.length === 0) {
      return 0;
    }
    if (str1 === str2) {
      return 1;
    }

    // counter variables
    var i, j, k;

    // number of matches between both strings
    var matches = 0;

    // number of transpositions between both strings
    var transpositions = 0;

    // The Jaro-Winkler distance
    var distance = 0;

    // length of common prefix up to 4 chars
    var l = 0;

    // scaling factor, should not exceed 0.25 (Winkler default = 0.1)
    var p = 0.1;

    // will be used often
    var str1Len = str1.length;
    var str2Len = str2.length;

    // determines the distance that still counts as a match
    var matchWindow = Math.floor(Math.max(str1Len, str2Len) / 2)- 1;

    // will store matches
    var str1Flags = new Array(str1Len);
    var str2Flags = new Array(str2Len);

    // count matches
    for (i = 0; i < str1Len; i++) {
      var start  = (i >= matchWindow) ? i - matchWindow : 0;
      var end = (i + matchWindow <= (str2Len - 1)) ? (i + matchWindow) : (str2Len - 1);

      for (j = start; j <= end; j++) {
        if (str1Flags[i] !== true && str2Flags[j] !== true && str1[i] === str2[j]) {
          str1Flags[i] = str2Flags[j] = true;
          matches += 1;
          break;
        }
      }
    }
    if (matches === 0) {
      return 0;
    }

    // count transpositions
    k = 0;
    for (i = 0; i < str1Len; i++) {
      if (!str1Flags[i]) {
        continue;
      }
      while (!str2Flags[k]) {
        k += 1;
      }
      if (str1[i] !== str2[k]) {
        transpositions += 1;
      }
      k += 1;
    }
    transpositions = transpositions / 2;

    // compute Jaro distance
    distance = (matches/str1Len + matches/str2Len + (matches - transpositions) / matches) / 3;

    // modification used by Winkler
    if (favorSameStart) {
      if (distance > 0.7 && str1Len > 3 && str2Len > 3) {
        while (str1[l] === str2[l] && l < 4) {
          l += 1;
        }
        distance = distance + l * p * (1 - distance);

        // modification for long words
        if (longTolerance) {
          if (Math.max(str1Len, str2Len) > 4 && matches > l + 1 && 2 * matches >= Math.max(str1Len, str2Len) + l) {
            distance += ((1.0 - distance) * ((matches - l - 1) / (str1Len + str2Len - 2 * l + 2)));
          }
        }
      }
    }

    return distance;
  };


  /**
   * Check whether a text contains a string, but fuzzy.
   *
   * This function is naive. It moves a window of needle's length (+2)
   * over the haystack's text and each move compares for similarity using
   * a given string metric. This will be slow for long texts!!!
   *
   * TODO: You might want to look into the bitap algorithm or experiment
   *       with regexps
   *
   * @param {String} needle - String to look for.
   * @param {String} haystack - Text to look in.
   */
  TextUtilities.fuzzyContains = function (needle, haystack) {
    return this.fuzzyFind(needle, haystack).contains;
  };

  /**
   * Find the first position of a fuzzy string within a text
   * @param {String} needle - String to look for.
   * @param {String} haystack - Text to look in.
   */
  TextUtilities.fuzzyIndexOf = function (needle, haystack) {
    return this.fuzzyFind(needle, haystack).indexOf;
  };

  /**
   * Find the first fuzzy match of a string within a text
   * @param {String} needle - String to look for.
   * @param {String} haystack - Text to look in.
   */
  TextUtilities.fuzzyMatch = function (needle, haystack) {
    return this.fuzzyFind(needle, haystack).match;
  };

  /**
   * Find a fuzzy string with in a text.
   * TODO: This could be cleaned ...
   * @param {String} needle - String to look for.
   * @param {String} haystack - Text to look in.
   * @param {object} params - Parameters.
   */
  TextUtilities.fuzzyFind = function (needle, haystack, params) {
    // Sanitization
    if (!needle || typeof needle !== 'string') {
      return false;
    }
    if (!haystack || typeof haystack !== 'string') {
      return false;
    }
    if (params === undefined || params.windowSize === undefined || typeof params.windowSize !== 'number') {
      params = {'windowSize': 3};
    }

    var match;

    var found = haystack.split(' ').some(function(hay) {
      match = hay;
      return H5P.TextUtilities.areSimilar(needle, hay);
    });
    if (found) {
      return {'contains' : found, 'match': match, 'index': haystack.indexOf(match)};
    }

    // This is not used for single words but for phrases
    for (var i = 0; i < haystack.length - needle.length + 1; i++) {
      var hay = [];
      for (var j = 0; j < params.windowSize; j++) {
        hay[j] = haystack.substr(i, needle.length + j);
      }

      // Checking isIsolated will e.g. prevent finding beginnings of words
      for (var j = 0; j < hay.length; j++) {
        if (TextUtilities.isIsolated(hay[j], haystack) && TextUtilities.areSimilar(hay[j], needle)) {
          match = hay[j];
          found = true;
          break;
        }
      }
      if (found) {
        break;
      }
    }
    if (!found) {
      match = undefined;
    }
    return {'contains' : found, 'match': match, 'index': haystack.indexOf(match)};
  };

  return TextUtilities;
}();
;/**
 * Accordion module
 *
 * @param {jQuery} $
 */
H5P.Accordion = (function ($) {

  var nextIdPrefix = 0;
  var nextLooperId = 0;
  var allowedLoopers = [];
  /**
   * Initialize a new Accordion
   *
   * @class H5P.InteractiveVideo
   * @extends H5P.EventDispatcher
   * @param {Object} params Behavior settings
   * @param {Number} contentId Content identification
   * @param {Object} contentData Object containing task specific content data
   */
  function Accordion(params, contentId, contentData) {
    this.contentId = contentId;
    H5P.EventDispatcher.call(this);

    // Set default behavior.
    this.params = $.extend({}, {
      hTag: "h2",
      panels: []
    }, params);

    this.contentData = contentData;

    this.instances = [];

    for (var i = 0; i < this.params.panels.length; i++) {
      this.instances[i] = H5P.newRunnable(this.params.panels[i].content, contentId);
    }

    this.idPrefix = (nextIdPrefix++) + '-';
  }

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

  /**
   * Append field to wrapper.
   * @param {jQuery} container the jQuery object which this module will attach itself to.
   */
  Accordion.prototype.attach = function ($container) {
    var self = this;

    if (self.$content === undefined) {
      // Mark as consumed
      self.triggerConsumed();

      // Create the content
      self.elements = [];
      for (var i = 0; i < self.params.panels.length; i++) {
        self.createPanel(i);
      }
      self.$content = $(self.elements);
    }

    // Insert content
    $container.html('').addClass('h5p-accordion').append(self.$content);
  };

  /**
   * Create HTML for Panel.
   * @param {number} id
   */
  Accordion.prototype.createPanel = function (id) {
    var self = this;
    var titleId = 'h5p-panel-link-' + this.idPrefix + id;
    var contentId = 'h5p-panel-content-' + self.idPrefix + id;

    var toggleCollapse = function () {
      if (self.$expandedTitle === undefined || !self.$expandedTitle.is($title)) {
        self.collapseExpandedPanels();
        self.expandPanel($title, $titleButton, $content);
      }
      else {
        self.collapsePanel($title, $titleButton, $content);
      }

      // We're running in an iframe, so we must animate the iframe height
      self.animateResize();
    };

    // Create panel title
    var $title =  $('<' + this.params.hTag + '/>', {
      'id': titleId,
      'class': 'h5p-panel-title',
    });

    // Create panel button
    var $titleButton =  $('<button/>', {
      'class': 'h5p-panel-button',
      'tabindex': '0',
      'aria-expanded': 'false',
      'aria-controls': contentId,
      'html': self.params.panels[id].title,
      'on': {
        'click': toggleCollapse,
        'keydown': function (event) {
          switch (event.keyCode) {
            case 38:   // Up
            case 37: { // Left
              // Try to select previous item
              var $prev = $title.prev().prev().children('.h5p-panel-button');
              if ($prev.length) {
                $prev.focus();
              }
              return false;
            }
            case 40:   // Down
            case 39: { // Right
              // Try to select next item
              var $next = $content.next().children('.h5p-panel-button');
              if ($next.length) {
                $next.focus();
              }
              return false;
            }

            case 32:   // SPACE
            case 13: { // ENTER
              toggleCollapse();
              return false;
            }
          }
        },
        // The class needs to be set programmatically as the title 
        // is not able to detect focus-visible on the button
        'focus': function () {
          if($titleButton.is(':focus-visible')) {
            $title.addClass('h5p-panel-focused');
          }
        },
        'blur': function () {
          $title.removeClass('h5p-panel-focused');
        }
      }
    });

    $title.append($titleButton);

    // Create panel content
    var $content = $('<div>', {
      'id': contentId,
      'class': 'h5p-panel-content',
      'role': 'region',
      'aria-labelledby': titleId,
      'aria-hidden': 'true'
    });

    // Add the content itself to the content section
    self.instances[id].attach($content);

    // Gather all content
    self.elements.push($title[0]);
    self.elements.push($content[0]);
  };

  /**
   * Trigger the 'consumed' xAPI event when this commences
   *
   * (Will be more sophisticated in future version)
   */
  Accordion.prototype.triggerConsumed = function () {
    var xAPIEvent = this.createXAPIEventTemplate({
      id: 'http://activitystrea.ms/schema/1.0/consume',
      display: {
        'en-US': 'consumed'
      }
    }, {
      result: {
        completion: true
      }
    });
    this.trigger(xAPIEvent);
  };

  /**
   * Collapse all expanded panels
   */
  Accordion.prototype.collapseExpandedPanels = function () {
    var self = this;
    if (this.$expandedTitle !== undefined) {
      this.$expandedButton.attr('aria-expanded', false);
      this.$expandedTitle.removeClass('h5p-panel-expanded');
    }
    if (this.$expandedPanel !== undefined) {
      this.$expandedPanel
        .stop(false, true)
        .slideUp(200, function () {
          self.stopWorkLoop(self.resizing);
          self.trigger('resize');
        })
        .attr('aria-hidden', true);
    }
  };

  /**
   * Expand a panel
   *
   * @param {jQuery} $title The title of the panel that is to be expanded
   * @param {jQuery} $panel The panel that is to be expanded
   */
  Accordion.prototype.expandPanel = function($title, $titleButton, $panel) {
    var self = this;

    $titleButton.attr('aria-expanded', true);
    $title.addClass('h5p-panel-expanded');

    $panel
      .stop(false, true)
      .slideDown(200, function () {
        self.stopWorkLoop(self.resizing);
        self.trigger('resize');
      })
      .attr('aria-hidden', false);

    self.$expandedButton = $titleButton;
    self.$expandedTitle = $title;
    self.$expandedPanel = $panel;
  };

  /**
   * Collapse a panel
   *
   * @param {jQuery} $title The title of the panel that is to be collapsed
   * @param {jQuery} $panel The panel that is to be collapsed
   */
  Accordion.prototype.collapsePanel = function($title, $titleButton, $panel) {
    var self = this;
    $titleButton.attr('aria-expanded', false)
    $title.removeClass('h5p-panel-expanded');
    $panel
      .stop(false, true)
      .slideUp(200, function () {
        self.stopWorkLoop(self.resizing);
        self.trigger('resize');
      })
      .attr('aria-hidden', true);
     self.$expandedTitle = self.$expandedButton = self.$expandedPanel = undefined;
  };

  /**
   * Makes sure that the heigt of the iframe gets animated
   */
  Accordion.prototype.animateResize = function () {
    var self = this;
    self.stopWorkLoop(this.resizing);
    this.resizing = self.startWorkLoop(function () {
      self.trigger('resize');
    }, 40);
  };

  Accordion.prototype.startWorkLoop = function (func, wait) {
    var myId = nextLooperId++;
    var self = this;
    allowedLoopers.push(myId);
    var looper = function(func, wait, myId) {
      return function () {
        if (self.allowedToWork(myId)) {
          try {
            func.call(null);
          }
          catch (e) {
            self.stopWorkLoop(myId);
          }
          setTimeout(looper, wait, func, wait, myId);
        }
      };
    } (func, wait, myId);
    setTimeout(looper, wait);
    return myId;
  };

  Accordion.prototype.stopWorkLoop = function (myId) {
    var index;
    while ((index = allowedLoopers.indexOf(myId)) !== -1) {
      allowedLoopers.splice(index, 1);
    }
  };

  Accordion.prototype.allowedToWork = function (myId) {
    return allowedLoopers.indexOf(myId) !== -1;
  };

  return Accordion;
})(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'),
      '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 tabindex="-1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 63.77 53.87" aria-hidden="true" focusable="false">' +
        '<title>star</title>' +
        '<filter tabindex="-1" 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 tabindex="-1" 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 tabindex="-1">' +
          '<path tabindex="-1" 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 tabindex="-1" 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 tabindex="-1" 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 = $('<div>', {
      'class': 'h5p-joubelui-progressbar'
    });
    this.$background = $('<div>', {
      'class': 'h5p-joubelui-progressbar-background'
    }).appendTo(this.$progressbar);
  }

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

  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);
  };

  /**
   * 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.Tooltip = H5P.Tooltip || function() {};

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', 'audio', '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;
          // Set tooltip (needed by H5P.Tooltip)
          let buttonText = $button.text();
          $button.attr('data-tooltip', buttonText);

          // Use button text as aria label if a specific one isn't provided
          if (!button.ariaLabel) {
            $button.attr('aria-label', buttonText);
          }
          // Remove label
          $button.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);

          // Remove tooltip (used by H5P.Tooltip)
          button.$element.removeAttr('data-tooltip');

          // Remove aria-label if a specific one isn't provided
          if (!button.ariaLabel) {
            button.$element.removeAttr('aria-label');
          }

          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;
    };

    /**
     * An audio player to display above the task.
     *
     * @param {object} params
     */
    self.setAudio = function (params) {
      params.params = params.params || {};

      sections.audio = {
        $element: $('<div/>', {
          'class': 'h5p-question-audio',
        })
      };

      if (disableAutoPlay) {
        params.params.autoplay = false;
      }
      else if (params.params.playerMode === 'transparent') {
        params.params.autoplay = true; // false doesn't make sense for transparent audio
      }

      sections.audio.instance = H5P.newRunnable(params, self.contentId, sections.audio.$element, true);
      // The height value that is set by H5P.Audio is counter-productive here.
      if (sections.audio.instance.audio) {
        sections.audio.instance.audio.style.height = '';
      }

      return self;
    };

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

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

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

    /**
     * Process HTML escaped string for use as attribute value,
     * e.g. for alt text or title attributes.
     *
     * @param {string} value
     * @return {string} WARNING! Do NOT use for innerHTML.
     */
    self.massageAttributeOutput = function (value) {
      const dparser = new DOMParser().parseFromString(value, 'text/html');
      const div = document.createElement('div');
      div.innerHTML = dparser.documentElement.textContent;;
      return div.textContent || div.innerText || '';
    };

    /**
     * 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
     * @param {string} [options.expandImage] Localization strings
     * @param {string} [options.minimizeImage] Localization string

     */
    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 ? '' : self.massageAttributeOutput(options.alt)),
        title: (options.title === undefined ? '' : self.massageAttributeOutput(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;
      }

      const setAriaLabel = () => {
        const ariaLabel = $imgWrap.attr('aria-expanded') === 'true'
          ? options.minimizeImage 
          : options.expandImage;
          
          $imgWrap.attr('aria-label', `${ariaLabel} ${options.alt}`);
        };

      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
              setAriaLabel();
            }
          }).on('keypress', function (event) {
            if (event.which === 32) {
              event.preventDefault(); // Prevent default behaviour; page scroll down
              scaleImage.apply(this); // Space bar pressed
              setAriaLabel();
            }
          });

        setAriaLabel();

        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
     * @param {Object} [extras.contentData] Content data
     * @params {string} [extras.textIfSubmitting] Text to display if submitting
     */
    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();
        }
      };

      const isSubmitting = extras.contentData && extras.contentData.standalone
        && (extras.contentData.isScoringEnabled || extras.contentData.isReportingEnabled);

      if (isSubmitting && extras.textIfSubmitting) {
        text = extras.textIfSubmitting;
      }

      buttons[id] = {
        isTruncated: false,
        text: text,
        isVisible: false,
        ariaLabel: options['aria-label']
      };

      // 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,
        on: {
          click: function (event) {
            handleButtonClick();
            if (isAnchorTag) {
              event.preventDefault();
            }
          }
        }
      }, options));
      buttonOrder.push(id);

      H5P.Tooltip($e.get(0), {tooltipSource: 'data-tooltip'});

      // 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.$parentElement) {
        const parentElement = options.$parentElement.get(0);
        let dialogParent;
        // If using h5p-content, dialog will not appear on embedded fullscreen
        if (parentElement.classList.contains('h5p-content')) {
          dialogParent = parentElement.querySelector('.h5p-container');
        }

        confirmationDialog.appendTo(dialogParent ?? parentElement);
      }
      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',
        submitAnswer: 'Submit',
        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
          },
          contentData: self.contentData,
          textIfSubmitting: params.l10n.submitAnswer,
        });
      }

      // 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,
              title: media.params.title,
              expandImage: media.params.expandImage,
              minimizeImage: media.params.minimizeImage
            });
          }
        }
        else if (type === 'H5P.Video') {
          if (media.params.sources) {
            // Register task video
            self.setVideo(media);
          }
        }
        else if (type === 'H5P.Audio') {
          if (media.params.files) {
            // Register task audio
            self.setAudio(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) {
          event.preventDefault();
          self.check();
        }
        else if ([Keys.LEFT_ARROW, Keys.UP_ARROW, Keys.RIGHT_ARROW, Keys.DOWN_ARROW].indexOf(event.keyCode) !== -1) {
          event.preventDefault();
          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);
;var H5P = H5P || {};
H5P.SingleChoiceSet = H5P.SingleChoiceSet || {};

H5P.SingleChoiceSet.StopWatch = (function () {
  /**
   * @class {H5P.SingleChoiceSet.StopWatch}
   * @constructor
   */
  function StopWatch() {
    /**
     * @property {number} duration in ms
     */
    this.duration = 0;
  }

  /**
   * Starts the stop watch
   *
   * @public
   * @return {H5P.SingleChoiceSet.StopWatch}
   */
  StopWatch.prototype.start = function () {
    /**
     * @property {number}
     */
    this.startTime = Date.now();
    return this;
  };

  /**
   * Stops the stopwatch, and returns the duration in seconds.
   *
   * @public
   * @return {number}
   */
  StopWatch.prototype.stop = function () {
    this.duration = this.duration + Date.now() - this.startTime;
    return this.passedTime();
  };

  /**
   * Sets the duration to 0
   *
   * @public
   */
  StopWatch.prototype.reset = function () {
    this.duration = 0;
  };

  /**
   * Returns the passed time in seconds
   *
   * @public
   * @return {number}
   */
  StopWatch.prototype.passedTime = function () {
    return Math.round(this.duration / 10) / 100;
  };

  return StopWatch;
})();
;H5P.SingleChoiceSet = H5P.SingleChoiceSet || {};

H5P.SingleChoiceSet.SoundEffects = (function () {
  let isDefined = false;

  const SoundEffects = {
    types: [
      'positive-short',
      'negative-short'
    ]
  };

  const players = {};

  /**
   * Setup defined sounds
   *
   * @param {string} libraryPath
   * @return {boolean} True if setup was successfull, otherwise false
   */
  SoundEffects.setup = function (libraryPath) {
    if (isDefined) {
      return false;
    }
    isDefined = true;

    SoundEffects.types.forEach(async function (type) {
      const player = new Audio();
      const extension = player.canPlayType('audio/ogg') ? 'ogg' : 'mp3';
      const response = await fetch(libraryPath + 'sounds/' + type + '.' + extension);
      const data = await response.blob();
      player.src = URL.createObjectURL(data);
      players[type] = player;
    });

    return true;
  };

  /**
   * Play a sound
   *
   * @param  {string} type  Name of the sound as defined in [SoundEffects.types]{@link H5P.SoundEffects.SoundEffects#types}
   * @param  {number} delay Delay in milliseconds
   */
  SoundEffects.play = function (type, delay) {
    if (!players[type]) {
      return;
    }

    setTimeout(function () {
      players[type].play();
    }, delay || 0);
  };

  return SoundEffects;
})();
;var H5P = H5P || {};
H5P.SingleChoiceSet = H5P.SingleChoiceSet || {};

H5P.SingleChoiceSet.XApiEventBuilder = (function ($, EventDispatcher) {
  /**
   * @typedef {object} LocalizedString
   * @property {string} en-US
   */

  /**
   * @class {H5P.SingleChoiceSet.XApiEventDefinitionBuilder}
   * @constructor
   */
  function XApiEventDefinitionBuilder() {
    EventDispatcher.call(this);
    /**
     * @property {object} attributes
     * @property {string} attributes.name
     * @property {string} attributes.description
     * @property {string} attributes.interactionType
     * @property {string} attributes.correctResponsesPattern
     * @property {object} attributes.optional
     */
    this.attributes = {};
  }

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


  /**
   * Sets name
   * @param {string} name
   * @return {XApiEventDefinitionBuilder}
   */
  XApiEventDefinitionBuilder.prototype.name = function (name) {
    this.attributes.name = name;
    return this;
  };

  /**
   * Question text and any additional information to generate the report.
   * @param {string} description
   * @return {XApiEventDefinitionBuilder}
   */
  XApiEventDefinitionBuilder.prototype.description = function (description) {
    this.attributes.description = description;
    return this;
  };

  /**
   * Type of the interaction.
   * @param {string} interactionType
   * @see {@link https://github.com/adlnet/xAPI-Spec/blob/master/xAPI-Data.md#interaction-types|xAPI Spec}
   * @return {XApiEventDefinitionBuilder}
   */
  XApiEventDefinitionBuilder.prototype.interactionType = function (interactionType) {
    this.attributes.interactionType = interactionType;
    return this;
  };

  /**
   * A pattern for determining the correct answers of the interaction
   * @param {string[]} correctResponsesPattern
   * @see {@link https://github.com/adlnet/xAPI-Spec/blob/master/xAPI-Data.md#response-patterns|xAPI Spec}
   * @return {XApiEventDefinitionBuilder}
   */
  XApiEventDefinitionBuilder.prototype.correctResponsesPattern = function (correctResponsesPattern) {
    this.attributes.correctResponsesPattern = correctResponsesPattern;
    return this;
  };

  /**
   * Sets optional attributes
   * @param {object} optional Can have one of the following configuration objects: choices, scale, source, target, steps
   * @return {XApiEventDefinitionBuilder}
   */
  XApiEventDefinitionBuilder.prototype.optional = function (optional) {
    this.attributes.optional = optional;
    return this;
  };

  /**
   * @return {object}
   */
  XApiEventDefinitionBuilder.prototype.build = function () {
    var definition = {};

    // sets attributes
    setAttribute(definition, 'name', localizeToEnUS(this.attributes.name));
    setAttribute(definition, 'description', localizeToEnUS(this.attributes.description));
    setAttribute(definition, 'interactionType', this.attributes.interactionType);
    setAttribute(definition, 'correctResponsesPattern', this.attributes.correctResponsesPattern);
    setAttribute(definition, 'type', 'http://adlnet.gov/expapi/activities/cmi.interaction');

    // adds the optional object to the definition
    if (this.attributes.optional) {
      $.extend(definition, this.attributes.optional);
    }

    return definition;
  };

  // -----------------------------------------------------

  /**
   *
   * @constructor
   */
  function XApiEventResultBuilder() {
    EventDispatcher.call(this);
    /**
     * @property {object} attributes
     * @property {string} attributes.completion
     * @property {boolean} attributes.success
     * @property {boolean} attributes.response
     * @property {number} attributes.rawScore
     * @property {number} attributes.maxScore
     */
    this.attributes = {};
  }

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

  /**
   * @param {boolean} completion
   * @return {XApiEventResultBuilder}
   */
  XApiEventResultBuilder.prototype.completion = function (completion) {
    this.attributes.completion = completion;
    return this;
  };

  /**
   * @param {boolean} success
   * @return {XApiEventResultBuilder}
   */
  XApiEventResultBuilder.prototype.success = function (success) {
    this.attributes.success = success;
    return this;
  };

  /**
   * @param {number} duration The duraction in seconds
   * @return {XApiEventResultBuilder}
   */
  XApiEventResultBuilder.prototype.duration = function (duration) {
    this.attributes.duration = duration;
    return this;
  };

  /**
   * Sets response
   * @param {string|string[]} response
   * @return {XApiEventResultBuilder}
   */
  XApiEventResultBuilder.prototype.response = function (response) {
    this.attributes.response = (typeof response === 'string') ? response : response.join('[,]');
    return this;
  };

  /**
   * Sets the score, and max score
   * @param {number} score
   * @param {number} maxScore
   * @return {XApiEventResultBuilder}
   */
  XApiEventResultBuilder.prototype.score = function (score, maxScore) {
    this.attributes.rawScore = score;
    this.attributes.maxScore = maxScore;
    return this;
  };

  /**
   * Builds the result object
   * @return {object}
   */
  XApiEventResultBuilder.prototype.build = function () {
    var result = {};

    setAttribute(result, 'response', this.attributes.response);
    setAttribute(result, 'completion', this.attributes.completion);
    setAttribute(result, 'success', this.attributes.success);

    if (isDefined(this.attributes.duration)) {
      setAttribute(result, 'duration','PT' +  this.attributes.duration + 'S');
    }

    // sets score
    if (isDefined(this.attributes.rawScore)) {
      result.score = {};
      setAttribute(result.score, 'raw', this.attributes.rawScore);

      if (isDefined(this.attributes.maxScore) && this.attributes.maxScore > 0) {
        setAttribute(result.score, 'min', 0);
        setAttribute(result.score, 'max', this.attributes.maxScore);
        setAttribute(result.score, 'min', 0);
        setAttribute(result.score, 'scaled', Math.round(this.attributes.rawScore / this.attributes.maxScore * 10000) / 10000);
      }
    }

    return result;
  };

  // -----------------------------------------------------

  /**
   * @class {H5P.SingleChoiceSet.XApiEventBuilder}
   */
  function XApiEventBuilder() {
    EventDispatcher.call(this);
    /**
     * @property {object} attributes
     * @property {string} attributes.contentId
     * @property {string} attributes.subContentId
     */
    this.attributes = {};
  }

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


  /**
   * @param {object} verb
   *
   * @public
   * @return {H5P.SingleChoiceSet.XApiEventBuilder}
   */
  XApiEventBuilder.prototype.verb = function (verb) {
    this.attributes.verb = verb;
    return this;
  };

  /**
   * @param {string} name
   * @param {string} mbox
   * @param {string} objectType
   *
   * @public
   * @return {H5P.SingleChoiceSet.XApiEventBuilder}
   */
  XApiEventBuilder.prototype.actor = function (name, mbox, objectType) {
    this.attributes.actor = {
      name: name,
      mbox: mbox,
      objectType: objectType
    };

    return this;
  };

  /**
   * Sets contentId
   * @param {string} contentId
   * @param {string} [subContentId]
   * @return {H5P.SingleChoiceSet.XApiEventBuilder}
   */
  XApiEventBuilder.prototype.contentId = function (contentId, subContentId) {
    this.attributes.contentId = contentId;
    this.attributes.subContentId = subContentId;
    return this;
  };

  /**
   * Sets parent in context
   *
   * @param {string} parentContentId
   * @param {string} [parentSubContentId]
   * @return {H5P.SingleChoiceSet.XApiEventBuilder}
   */
  XApiEventBuilder.prototype.context = function (parentContentId, parentSubContentId) {
    this.attributes.parentContentId = parentContentId;
    this.attributes.parentSubContentId = parentSubContentId;
    return this;
  };

  /**
   * @param {object} result
   *
   * @public
   * @return {H5P.SingleChoiceSet.XApiEventBuilder}
   */
  XApiEventBuilder.prototype.result = function (result) {
    this.attributes.result = result;
    return this;
  };

  /**
   * @param {object} objectDefinition
   *
   * @public
   * @return {H5P.SingleChoiceSet.XApiEventBuilder}
   */
  XApiEventBuilder.prototype.objectDefinition = function (objectDefinition) {
    this.attributes.objectDefinition = objectDefinition;
    return this;
  };

  /**
   * Returns the buildt event
   * @public
   * @return {H5P.XAPIEvent}
   */
  XApiEventBuilder.prototype.build = function () {
    var event = new H5P.XAPIEvent();

    event.setActor();
    event.setVerb(this.attributes.verb);

    // sets context
    if (this.attributes.parentContentId || this.attributes.parentSubContentId) {
      event.data.statement.context = {
        'contextActivities': {
          'parent': [
            {
              'id': getContentXAPIId(this.attributes.parentContentId, this.attributes.parentSubContentId),
              'objectType': "Activity"
            }
          ]
        }
      };

      if (H5P.xApiSessionId) {
        event.data.statement.context.extensions = {
          'https://h5p.com/xapi/session-id': H5P.xApiSessionId
        };
      }
    }

    event.data.statement.object = {
      'id': getContentXAPIId(this.attributes.contentId, this.attributes.subContentId),
      'objectType': 'Activity'
    };

    setAttribute(event.data, 'actor', this.attributes.actor);
    setAttribute(event.data.statement, 'result', this.attributes.result);
    setAttribute(event.data.statement.object, 'definition', this.attributes.objectDefinition);

    // sets h5p specific attributes
    if (event.data.statement.object.definition && (this.attributes.contentId || this.attributes.subContentId)) {
      var extensions = event.data.statement.object.definition.extensions = {};
      setAttribute(extensions, 'http://h5p.org/x-api/h5p-local-content-id', this.attributes.contentId);
      setAttribute(extensions, 'http://h5p.org/x-api/h5p-subContentId', this.attributes.subContentId);
    }

    return event;
  };

  /**
   * Creates a Localized String object for en-US
   *
   * @param str
   * @return {LocalizedString}
   */
  var localizeToEnUS = function (str) {
    if (str != undefined) {
      return {
        'en-US': cleanString(str)
      };
    }
  };

  /**
   * Generates an id for the content
   * @param {string} contentId
   * @param {string} [subContentId]
   *
   * @see {@link https://github.com/h5p/h5p-php-library/blob/master/js/h5p-x-api-event.js#L240-L249}
   * @return {string}
   */
  var getContentXAPIId = function (contentId, subContentId) {
    const cid = 'cid-' + contentId;
    if (contentId && H5PIntegration && H5PIntegration.contents && H5PIntegration.contents[cid]) {
      var id =  H5PIntegration.contents[cid].url;

      if (subContentId) {
        id += '?subContentId=' +  subContentId;
      }

      return id;
    }
  };

  /**
   * Removes html elements from string
   *
   * @param {string} str
   * @return {string}
   */
  var cleanString = function (str) {
    return $('<div>' + str + '</div>').text().trim();
  };

  var isDefined = function (val) {
    return typeof val !== 'undefined';
  };

  function setAttribute(obj, key, value, required) {
    if (isDefined(value)) {
      obj[key] = value;
    }
    else if (required) {
      console.error("xApiEventBuilder: No value for [" + key + "] in", obj);
    }
  }

  /**
   * Creates a new XApiEventBuilder
   *
   * @public
   * @static
   * @return {H5P.SingleChoiceSet.XApiEventBuilder}
   */
  XApiEventBuilder.create = function () {
    return new XApiEventBuilder();
  };

  /**
   * Creates a new XApiEventDefinitionBuilder
   *
   * @public
   * @static
   * @return {XApiEventDefinitionBuilder}
   */
  XApiEventBuilder.createDefinition = function () {
    return new XApiEventDefinitionBuilder();
  };

  /**
   * Creates a new XApiEventDefinitionBuilder
   *
   * @public
   * @static
   * @return {XApiEventResultBuilder}
   */
  XApiEventBuilder.createResult = function () {
    return new XApiEventResultBuilder();
  };

  /**
   * Returns choice to be used with 'cmi.interaction' for Activity of type 'choice'
   *
   * @param {string} id
   * @param {string} description
   *
   * @public
   * @static
   * @see {@link https://github.com/adlnet/xAPI-Spec/blob/master/xAPI-Data.md#choice|xAPI-Spec}
   * @return {object}
   */
  XApiEventBuilder.createChoice = function (id, description) {
    return {
      id: id,
      description: localizeToEnUS(description)
    };
  };

  /**
   * Takes an array of correct ids, and joins them to a 'correct response pattern'
   *
   * @param {string[]} ids
   *
   * @public
   * @static
   * @see {@link https://github.com/adlnet/xAPI-Spec/blob/master/xAPI-Data.md#choice|xAPI-Spec}
   * @return {string}
   */
  XApiEventBuilder.createCorrectResponsePattern = function (ids) {
    return ids.join('[,]');
  };

  /**
   * Interaction types
   *
   * @readonly
   * @enum {String}
   */
  XApiEventBuilder.interactionTypes = {
    CHOICE: 'choice',
    COMPOUND: 'compound',
    FILL_IN: 'fill-in',
    MATCHING: 'matching',
    TRUE_FALSE: 'true-false'
  };

  /**
   * Verbs
   *
   * @readonly
   * @enum {String}
   */
  XApiEventBuilder.verbs = {
    ANSWERED: 'answered'
  };

  return XApiEventBuilder;
})(H5P.jQuery, H5P.EventDispatcher);
;var H5P = H5P || {};
H5P.SingleChoiceSet = H5P.SingleChoiceSet || {};
/**
 * SingleChoiceResultSlide - Represents the result slide
 */
H5P.SingleChoiceSet.ResultSlide = (function ($, EventDispatcher) {

  /**
   * @constructor
   * @param {number} maxscore Max score
   */
  function ResultSlide(maxscore) {
    EventDispatcher.call(this);

    this.$feedbackContainer = $('<div>', {
      'class': 'h5p-sc-feedback-container',
      'tabindex': '-1'
    });

    this.$buttonContainer = $('<div/>', {
      'class': 'h5p-sc-button-container'
    });

    var $resultContainer = $('<div/>', {
      'class': 'h5p-sc-result-container'
    }).append(this.$feedbackContainer)
      .append(this.$buttonContainer);

    this.$resultSlide = $('<div>', {
      'class': 'h5p-sc-slide h5p-sc-set-results',
      'css': {left: (maxscore * 100) + '%'}
    }).append($resultContainer);
  }

  // inherits from EventDispatchers prototype
  ResultSlide.prototype = Object.create(EventDispatcher.prototype);

  // set the constructor
  ResultSlide.prototype.constructor = ResultSlide;

  /**
   * Focus feedback container.
   */
  ResultSlide.prototype.focusScore = function () {
    this.$feedbackContainer.focus();
  };

  /**
   * Append the resultslide to a container
   *
   * @param  {jQuery} $container The container
   * @return {jQuery}            This dom element
   */
  ResultSlide.prototype.appendTo = function ($container) {
    this.$resultSlide.appendTo($container);
    return this.$resultSlide;
  };

  return ResultSlide;
})(H5P.jQuery, H5P.EventDispatcher);
;var H5P = H5P || {};
H5P.SingleChoiceSet = H5P.SingleChoiceSet || {};

H5P.SingleChoiceSet.SolutionView = (function ($, EventDispatcher) {
  /**
   * Constructor function.
   */
  function SolutionView(id, choices, l10n) {
    EventDispatcher.call(this);
    var self = this;
    self.id = id;
    this.choices = choices;
    self.l10n = l10n;

    this.$solutionView = $('<div>', {
      'class': 'h5p-sc-solution-view'
    });

    // Add header
    this.$header = $('<div>', {
      'class': 'h5p-sc-solution-view-header'
    }).appendTo(this.$solutionView);

    this.$title = $('<div>', {
      'class': 'h5p-sc-solution-view-title',
      'html': l10n.solutionViewTitle,
      'tabindex': '-1'
    });
    this.$title = this.addAriaPunctuation(this.$title);
    this.$header.append(this.$title);

    // Close solution view button
    $('<button>', {
      'role': 'button',
      'aria-label': l10n.closeButtonLabel + '.',
      'class': 'h5p-joubelui-button h5p-sc-close-solution-view',
      'click': function () {
        self.hide();
      }
    }).appendTo(this.$header);

    self.populate();
  }

  /**
   * Will append the solution view to a container DOM
   * @param  {jQuery} $container The DOM object to append to
   */
  SolutionView.prototype.appendTo = function ($container) {
    this.$solutionView.appendTo($container);
  };

  /**
   * Shows the solution view
   */
  SolutionView.prototype.show = function () {
    var self = this;
    self.$solutionView.addClass('visible');
    self.$title.focus();

    $(document).on('keyup.solutionview', function (event) {
      if (event.keyCode === 27) { // Escape
        self.hide();
        $(document).off('keyup.solutionview');
      }
    });
  };

  /**
   * Hides the solution view
   */
  SolutionView.prototype.hide = function () {
    this.$solutionView.removeClass('visible');
    this.trigger('hide', this);
  };


  /**
   * Populates the solution view
   */
  SolutionView.prototype.populate = function () {
    var self = this;
    self.$choices = $('<dl>', {
      'class': 'h5p-sc-solution-choices',
      'tabindex': -1,
    });

    this.choices.forEach(function (choice, index) {
      if (choice.question && choice.answers && choice.answers.length !== 0) {
        var $question = self.addAriaPunctuation($('<dt>', {
          'class': 'h5p-sc-solution-question',
          html: '<span class="h5p-hidden-read">' + self.l10n.solutionListQuestionNumber.replace(':num', index + 1) + '</span>' + choice.question
        }));

        self.$choices.append($question);

        var $answer = self.addAriaPunctuation($('<dd>', {
          'class': 'h5p-sc-solution-answer',
          html: choice.answers[0]
        }));

        self.$choices.append($answer);
      }
    });
    self.$choices.appendTo(this.$solutionView);
  };

  /**
   * If a jQuery elements text is missing punctuation, add an aria-label to the element
   * containing the text, and adding an extra "period"-symbol at the end.
   *
   * @param {jQuery} $element A jQuery-element
   * @returns {jQuery} The mutated jQuery-element
   */
  SolutionView.prototype.addAriaPunctuation = function ($element) {
    var text = $element.text().trim();

    if (!this.hasPunctuation(text)) {
      $element.attr('aria-label', text + '.');
    }

    return $element;
  };

  /**
   * Checks if a string ends with punctuation
   *
   * @private
   * @param {String} text Input string
   */
  SolutionView.prototype.hasPunctuation = function (text) {
    return /[,.?!]$/.test(text);
  };

  return SolutionView;
})(H5P.jQuery, H5P.EventDispatcher);
;var H5P = H5P || {};
H5P.SingleChoiceSet = H5P.SingleChoiceSet || {};

H5P.SingleChoiceSet.Alternative = (function ($, EventDispatcher) {

  /**
   * @constructor
   *
   * @param {object} options Options for the alternative
   */
  function Alternative(options) {
    EventDispatcher.call(this);
    var self = this;

    this.options = options;

    var triggerAlternativeSelected = function (event) {
      self.trigger('alternative-selected', {
        correct: self.options.correct,
        $element: self.$alternative,
        answerIndex: self.options.answerIndex
      });

      event.preventDefault();
    };

    this.$alternative = $('<li>', {
      'class': 'h5p-sc-alternative h5p-sc-is-' + (this.options.correct ? 'correct' : 'wrong'),
      'role': 'radio',
      'tabindex': -1,
      'on': {
        'keydown': function (event) {
          switch (event.which) {
            case 13: // Enter
            case 32: // Space
              // Answer question
              triggerAlternativeSelected(event);
              break;

            case 35: // End radio button
              // Go to previous Option
              self.trigger('lastOption', event);
              event.preventDefault();
              break;

            case 36: // Home radio button
              // Go to previous Option
              self.trigger('firstOption', event);
              event.preventDefault();
              break;

            case 37: // Left Arrow
            case 38: // Up Arrow
              // Go to previous Option
              self.trigger('previousOption', event);
              event.preventDefault();
              break;

            case 39: // Right Arrow
            case 40: // Down Arrow
              // Go to next Option
              self.trigger('nextOption', event);
              event.preventDefault();
              break;
          }
        }
      },
      'focus': function (event) {
        self.trigger('focus', event);
      },
      'click': triggerAlternativeSelected
    });

    this.$alternative.append($('<div>', {
      'class': 'h5p-sc-progressbar'
    }));

    this.$alternative.append($('<div>', {
      'class': 'h5p-sc-label',
      'html': this.options.text
    }));

    this.$alternative.append($('<div>', {
      'class': 'h5p-sc-status'
    }));
    this.$alternative.append($('<div>', {
      'class': 'h5p-sc-a11y',
      'aria-hidden': 'true'
    }));
  }

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

  /**
   * Is this alternative the correct one?
   *
   * @return {boolean}  Correct or not?
   */
  Alternative.prototype.isCorrect = function () {
    return this.options.correct;
  };

  /**
   * Move focus to this option.
   */
  Alternative.prototype.focus = function () {
    this.$alternative.focus();
  };

  /**
   * Makes it possible to tab your way to this option.
   */
  Alternative.prototype.tabbable = function () {
    this.$alternative.attr('tabindex', 0);
  };

  /**
   * Make sure it's NOT possible to tab your way to this option.
   */
  Alternative.prototype.notTabbable = function () {
    this.$alternative.attr('tabindex', -1);
  };

  /**
   * Append the alternative to a DOM container
   *
   * @param  {jQuery} $container The Dom element to append to
   * @return {jQuery}            This dom element
   */
  Alternative.prototype.appendTo = function ($container) {
    $container.append(this.$alternative);
    return this.$alternative;
  };

  return Alternative;

})(H5P.jQuery, H5P.EventDispatcher);
;var H5P = H5P || {};
H5P.SingleChoiceSet = H5P.SingleChoiceSet || {};

H5P.SingleChoiceSet.SingleChoice = (function ($, EventDispatcher, Alternative) {
  /**
   * Constructor function.
   */
  function SingleChoice(options, index, id, isAutoConfinue) {
    EventDispatcher.call(this);
    // Extend defaults with provided options
    this.options = $.extend(true, {}, {
      question: '',
      answers: []
    }, options);
    this.isAutoConfinue = isAutoConfinue;
    // Keep provided id.
    this.index = index;
    this.id = id;
    this.answered = false;

    for (var i = 0; i < this.options.answers.length; i++) {
      this.options.answers[i] = {
        text: this.options.answers[i],
        correct: i === 0,
        answerIndex: i
      };
    }
    // Randomize alternatives
    this.options.answers = H5P.shuffleArray(this.options.answers);
  }

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

  /**
   * appendTo function invoked to append SingleChoice to container
   *
   * @param {jQuery} $container
   * @param {boolean} isCurrent Current slide we are on
   */
  SingleChoice.prototype.appendTo = function ($container, isCurrent) {
    var self = this;
    this.$container = $container;

    // Index of the currently focused option.
    var focusedOption;

    this.$choice = $('<div>', {
      'class': 'h5p-sc-slide h5p-sc' + (isCurrent ? ' h5p-sc-current-slide' : ''),
      css: {'left': (self.index * 100) + '%'}
    });

    var questionId = 'single-choice-' + self.id + '-question-' + self.index;

    this.$choice.append($('<div>', {
      'id': questionId,
      'class': 'h5p-sc-question',
      'html': this.options.question
    }));

    var $alternatives = $('<ul>', {
      'class': 'h5p-sc-alternatives',
      'role': 'radiogroup',
      'aria-labelledby': questionId
    });

    /**
     * List of Alternatives
     *
     * @type {Alternative[]}
     */
    this.alternatives = self.options.answers.map(function (opts) {
      return new Alternative(opts);
    });

    /**
     * Handles click on an alternative
     */
    var handleAlternativeSelected = function (event) {
      var $element = event.data.$element;
      var correct = event.data.correct;
      var answerIndex = event.data.answerIndex;

      if ($element.parent().hasClass('h5p-sc-selected')) {
        return;
      }

      self.trigger('alternative-selected', {
        correct: correct,
        index: self.index,
        answerIndex: answerIndex,
        currentIndex: $element.index()
      });

      H5P.Transition.onTransitionEnd($element.find('.h5p-sc-progressbar'), function () {
        $element.addClass('h5p-sc-drummed');
        self.showResult(correct, answerIndex);
      }, 700);

      $element.addClass('h5p-sc-selected').parent().addClass('h5p-sc-selected');

      // indicate that this question is anwered
      this.setAnswered(true);
    };

    /**
     * Handles focusing one of the options, making the rest non-tabbable.
     * @private
     */
    var handleFocus = function (answer, index) {
      // Keep track of currently focused option
      focusedOption = index;

      // remove tabbable all alternatives
      self.alternatives.forEach(function (alternative) {
        alternative.notTabbable();
      });
      answer.tabbable();
    };

    /**
     * Handles moving the focus from the current option to the previous option.
     * @private
     */
    var handlePreviousOption = function () {
      if (focusedOption === 0) {
        // wrap around to last
        this.focusOnAlternative(self.alternatives.length - 1);
      }
      else {
        this.focusOnAlternative(focusedOption - 1);
      }
    };

    /**
     * Handles moving the focus from the current option to the next option.
     * @private
     */
    var handleNextOption = function () {
      if ((focusedOption === this.alternatives.length - 1)) {
        // wrap around to first
        this.focusOnAlternative(0);
      }
      else {
        this.focusOnAlternative(focusedOption + 1);
      }
    };

    /**
     * Handles moving the focus to the first option
     * @private
     */
    var handleFirstOption = function () {
      this.focusOnAlternative(0);
    };

    /**
     * Handles moving the focus to the last option
     * @private
     */
    var handleLastOption = function () {
      this.focusOnAlternative(self.alternatives.length - 1);
    };

    for (var i = 0; i < this.alternatives.length; i++) {
      var alternative = this.alternatives[i];

      if (i === 0) {
        alternative.tabbable();
      }

      alternative.appendTo($alternatives);
      alternative.on('focus', handleFocus.bind(this, alternative, i), this);
      alternative.on('alternative-selected', handleAlternativeSelected, this);
      alternative.on('previousOption', handlePreviousOption, this);
      alternative.on('nextOption', handleNextOption, this);
      alternative.on('firstOption', handleFirstOption, this);
      alternative.on('lastOption', handleLastOption, this);

    }

    this.$choice.append($alternatives);
    $container.append(this.$choice);
    return this.$choice;
  };

  /**
   * Focus on an alternative by index
   *
   * @param {Number} index The index of the alternative to focus on
   */
  SingleChoice.prototype.focusOnAlternative = function (index) {
    if (!this.answered || !this.isAutoConfinue) {
      this.alternatives[index].focus();
    }
  };

  /**
   * Sets if the question was answered
   *
   * @param {Boolean} answered If this question was answered
   */
  SingleChoice.prototype.setAnswered = function (answered) {
    this.answered = answered;
  };

  /**
   * Reveals the result for a question
   *
   * @param  {boolean} correct True uf answer was correct, otherwise false
   * @param  {number} answerIndex Original index of answer
   */
  SingleChoice.prototype.showResult = function (correct, answerIndex) {
    var self = this;

    var $correctAlternative = self.$choice.find('.h5p-sc-is-correct');

    H5P.Transition.onTransitionEnd($correctAlternative, function () {
      self.trigger('finished', {
        correct: correct,
        index: self.index,
        answerIndex: answerIndex
      });
      self.setAriaAttributes();
    }, 600);

    // Reveal corrects and wrong
    self.$choice.find('.h5p-sc-is-wrong').addClass('h5p-sc-reveal-wrong');
    $correctAlternative.addClass('h5p-sc-reveal-correct');
  };

  /**
   * Reset a11y text for selected options
   */
  SingleChoice.prototype.resetA11yText = function () {
    var self = this;
    self.$choice.find('.h5p-sc-a11y').text('');
  };

  /**
   * Make a11y text readable for screen reader
   */
  SingleChoice.prototype.setA11yTextReadable = function () {
    var self = this;
    self.$choice.find('.h5p-sc-a11y').attr('aria-hidden', false);
  };

  /**
   * Set aria attributes for choice
   */
  SingleChoice.prototype.setAriaAttributes = function () {
    var self = this;
    // A11y mode is enabled
    if (!self.isAutoConfinue) {
      self.$choice.find('.h5p-sc-alternative.h5p-sc-selected').attr('aria-checked', true);
      self.$choice.find('.h5p-sc-alternative').attr('aria-disabled', true);
    }
  }

  /**
   * Reset aria attributes
   */
  SingleChoice.prototype.resetAriaAttributes = function () {
    var self = this;
    // A11y mode is enabled
    if (!self.isAutoConfinue) {
      const alternative = self.$choice.find('.h5p-sc-alternative');
      alternative.removeAttr('aria-disabled');
      alternative.removeAttr('aria-checked');
    }
  };

  return SingleChoice;

})(H5P.jQuery, H5P.EventDispatcher, H5P.SingleChoiceSet.Alternative);
;var H5P = H5P || {};

H5P.SingleChoiceSet = (function ($, UI, Question, SingleChoice, SolutionView, ResultSlide, SoundEffects, XApiEventBuilder, StopWatch) {
  /**
   * @constructor
   * @extends Question
   * @param {object} options Options for single choice set
   * @param {string} contentId H5P instance id
   * @param {Object} contentData H5P instance data
   */
  function SingleChoiceSet(options, contentId, contentData) {
    var self = this;

    // Extend defaults with provided options
    this.contentId = contentId;
    this.contentData = contentData;
    /**
     * The users input on the questions. Uses the same index as this.options.choices
     * @type {number[]}
     */
    this.userResponses = [];
    Question.call(this, 'single-choice-set');
    this.options = $.extend(true, {}, {
      choices: [],
      overallFeedback: [],
      behaviour: {
        autoContinue: true,
        timeoutCorrect: 2000,
        timeoutWrong: 3000,
        soundEffectsEnabled: true,
        enableRetry: true,
        enableSolutionsButton: true,
        passPercentage: 100
      }
    }, options);
    if (contentData && contentData.previousState !== undefined) {
      this.currentIndex = contentData.previousState.progress;
      this.results = contentData.previousState.answers;
      this.userResponses = contentData.previousState.userResponses !== undefined
        ? contentData.previousState.userResponses
        : [];
    }
    this.currentIndex = this.currentIndex || 0;
    this.results = this.results || {
      corrects: 0,
      wrongs: 0
    };

    if (!this.options.behaviour.autoContinue) {
      this.options.behaviour.timeoutCorrect = 0;
      this.options.behaviour.timeoutWrong = 0;
    }

    /**
     * @property {StopWatch[]} Stop watches for tracking duration of slides
     */
    this.stopWatches = [];
    this.startStopWatch(this.currentIndex);

    this.muted = (this.options.behaviour.soundEffectsEnabled === false);

    this.l10n = H5P.jQuery.extend({
      correctText: 'Correct!',
      incorrectText: 'Incorrect!',
      shouldSelect: "Should have been selected",
      shouldNotSelect: "Should not have been selected",
      nextButtonLabel: 'Next question',
      showSolutionButtonLabel: 'Show solution',
      retryButtonLabel: 'Retry',
      closeButtonLabel: 'Close',
      solutionViewTitle: 'Solution',
      slideOfTotal: 'Slide :num of :total',
      muteButtonLabel: "Mute feedback sound",
      scoreBarLabel: 'You got :num out of :total points',
      solutionListQuestionNumber: 'Question :num',
      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.',
    }, options.l10n !== undefined ? options.l10n : {});

    this.$container = $('<div>', {
      'class': 'h5p-sc-set-wrapper navigatable' + (!this.options.behaviour.autoContinue ? ' next-button-mode' : '')
    });

    this.$slides = [];
    // An array containing the SingleChoice instances
    this.choices = [];

    /**
     * Keeps track of buttons that will be hidden
     * @type {Array}
     */
    self.buttonsToBeHidden = [];

    /**
     * The solution dialog
     * @type {SolutionView}
     */
    this.solutionView = new SolutionView(contentId, this.options.choices, this.l10n);

    this.$choices = $('<div>', {
      'class': 'h5p-sc-set h5p-sc-animate'
    });

    // sometimes an empty object is in the choices
    this.options.choices = this.options.choices.filter(function (choice) {
      return choice !== undefined && !!choice.answers;
    });

    var numQuestions = this.options.choices.length;

    // Create progressbar
    self.progressbar = UI.createProgressbar(numQuestions + 1, {
      progressText: this.l10n.slideOfTotal
    });
    self.progressbar.setProgress(this.currentIndex);

    for (var i = 0; i < this.options.choices.length; i++) {
      var choice = new SingleChoice(this.options.choices[i], i, this.contentId, this.options.behaviour.autoContinue);
      choice.on('finished', this.handleQuestionFinished, this);
      choice.on('alternative-selected', this.handleAlternativeSelected, this);
      choice.appendTo(this.$choices, (i === this.currentIndex));
      this.choices.push(choice);
      this.$slides.push(choice.$choice);
    }

    this.resultSlide = new ResultSlide(this.options.choices.length);
    this.resultSlide.appendTo(this.$choices);
    this.resultSlide.on('retry', function() {
      self.resetTask(true);
    }, this);
    this.resultSlide.on('view-solution', this.handleViewSolution, this);
    this.$slides.push(this.resultSlide.$resultSlide);
    this.on('resize', this.resize, this);

    // Use the correct starting slide
    this.recklessJump(this.currentIndex);

    if (this.options.choices.length === this.currentIndex) {
      // Make sure results slide is displayed
      this.resultSlide.$resultSlide.addClass('h5p-sc-current-slide');
      this.setScore(this.results.corrects, true);
    }

    if (!this.muted) {
      setTimeout(function () {
        SoundEffects.setup(self.getLibraryFilePath(''));
      }, 1);
    }

    /**
     * Override Question's hideButton function
     * to be able to hide buttons after delay
     *
     * @override
     * @param {string} id
     */
    this.superHideButton = self.hideButton;
    this.hideButton = (function () {
      return function (id) {

        if (!self.scoreTimeout) {
          return self.superHideButton(id);
        }

        self.buttonsToBeHidden.push(id);
        return this;
      };
    })();
  }

  SingleChoiceSet.prototype = Object.create(Question.prototype);
  SingleChoiceSet.prototype.constructor = SingleChoiceSet;

  /**
   * Set if a element is tabbable or not
   *
   * @param {jQuery} $element The element
   * @param {boolean} tabbable If element should be tabbable
   * @returns {jQuery} The element
   */
  SingleChoiceSet.prototype.setTabbable = function ($element, tabbable) {
    if ($element) {
      $element.attr('tabindex', tabbable ? 0 : -1);
    }
  };

  /**
   * Handle alternative selected, i.e play sound if sound effects are enabled
   *
   * @method handleAlternativeSelected
   * @param  {Object} event Event that was fired
   */
  SingleChoiceSet.prototype.handleAlternativeSelected = function (event) {
    var self = this;
    this.lastAnswerIsCorrect = event.data.correct;

    self.toggleNextButton(true);

    // Keep track of num correct/wrong answers
    this.results[this.lastAnswerIsCorrect ? 'corrects' : 'wrongs']++;

    self.triggerXAPI('interacted');

    // Read and set a11y friendly texts 
    self.readA11yFriendlyText(event.data.index, event.data.currentIndex)

    if (!this.muted) {
      // Can't play it after the transition end is received, since this is not
      // accepted on iPad. Therefore we are playing it here with a delay instead
      SoundEffects.play(this.lastAnswerIsCorrect ? 'positive-short' : 'negative-short', 700);
    }
  };

  /**
   * Handler invoked when question is done
   *
   * @param  {object} event An object containing a single boolean property: "correct".
   */
  SingleChoiceSet.prototype.handleQuestionFinished = function (event) {
    var self = this;

    var index = event.data.index;

    // saves user response
    var userResponse = self.userResponses[index] = event.data.answerIndex;

    // trigger answered event
    var duration = this.stopStopWatch(index);
    var xapiEvent = self.createXApiAnsweredEvent(self.options.choices[index], userResponse, duration);

    self.trigger(xapiEvent);

    self.continue(index);
  };

  /**
   * Setup auto continue
   */
  SingleChoiceSet.prototype.continue = function (index) {
    var self = this;

    self.choices[index].setA11yTextReadable();
    if (!self.options.behaviour.autoContinue) {
      // Set focus to next button
      self.$nextButton.focus();
      return;
    }

    var timeout;
    var letsMove = function () {
      // Handle impatient users
      self.$container.off('click.impatient keydown.impatient');
      clearTimeout(timeout);
      self.next();
    };

    timeout = setTimeout(function () {
      letsMove();
    }, self.lastAnswerIsCorrect ? self.options.behaviour.timeoutCorrect : self.options.behaviour.timeoutWrong);

    self.onImpatientUser(letsMove);
  };

  /**
   * Listen to impatience
   * @param  {Function} action Callback
   */
  SingleChoiceSet.prototype.onImpatientUser = function (action) {
    this.$container.off('click.impatient keydown.impatient');

    this.$container.one('click.impatient', action);
    this.$container.one('keydown.impatient', function (event) {
      // If return, space or right arrow
      if ([13,32,39].indexOf(event.which)) {
        action();
      }
    });
  };

  /**
   * Go to next slide
   */
  SingleChoiceSet.prototype.next = function () {
    this.move(this.currentIndex + 1);
  };

  /**
   * Creates an xAPI answered event
   *
   * @param {object} question
   * @param {number} userAnswer
   * @param {number} duration
   *
   * @return {H5P.XAPIEvent}
   */
  SingleChoiceSet.prototype.createXApiAnsweredEvent = function (question, userAnswer, duration) {
    var self = this;
    var types = XApiEventBuilder.interactionTypes;

    // creates the definition object
    var definition = XApiEventBuilder.createDefinition()
      .interactionType(types.CHOICE)
      .description(question.question)
      .correctResponsesPattern(self.getXApiCorrectResponsePattern())
      .optional( self.getXApiChoices(question.answers))
      .build();

    // create the result object
    var result = XApiEventBuilder.createResult()
      .response(userAnswer.toString())
      .duration(duration)
      .score((userAnswer === 0) ? 1 : 0, 1)
      .completion(true)
      .success(userAnswer === 0)
      .build();

    return XApiEventBuilder.create()
      .verb(XApiEventBuilder.verbs.ANSWERED)
      .objectDefinition(definition)
      .context(self.contentId, self.subContentId)
      .contentId(self.contentId, question.subContentId)
      .result(result)
      .build();
  };

  /**
   * Returns the 'correct response pattern' for xApi
   *
   * @return {string[]}
   */
  SingleChoiceSet.prototype.getXApiCorrectResponsePattern = function () {
    return [XApiEventBuilder.createCorrectResponsePattern([(0).toString()])]; // is always '0' for SCS
  };

  /**
   * Returns the choices array for xApi statements
   *
   * @param {String[]} answers
   *
   * @return {{ choices: []}}
   */
  SingleChoiceSet.prototype.getXApiChoices = function (answers) {
    var choices = answers.map(function (answer, index) {
      return XApiEventBuilder.createChoice(index.toString(), answer);
    });

    return {
      choices: choices
    };
  };

  /**
   * Handles buttons that are queued for hiding
   */
  SingleChoiceSet.prototype.handleQueuedButtonChanges = function () {
    var self = this;

    if (self.buttonsToBeHidden.length) {
      self.buttonsToBeHidden.forEach(function (id) {
        self.superHideButton(id);
      });
    }
    self.buttonsToBeHidden = [];
  };

  /**
   * Set score and feedback
   *
   * @params {Number} score Number of correct answers
   */
  SingleChoiceSet.prototype.setScore = function (score, noXAPI) {
    var self = this;

    if (!self.choices.length) {
      return;
    }

    var feedbackText = determineOverallFeedback(self.options.overallFeedback , score / self.options.choices.length)
      .replace(':numcorrect', score)
      .replace(':maxscore', self.options.choices.length.toString());

    self.setFeedback(feedbackText, score, self.options.choices.length, self.l10n.scoreBarLabel);

    if (score === self.options.choices.length) {
      self.hideButton('try-again');
      self.hideButton('show-solution');
    }
    else {
      self.showButton('try-again');
      self.showButton('show-solution');
    }
    self.handleQueuedButtonChanges();
    self.scoreTimeout = undefined;

    if (!noXAPI) {
      self.triggerXAPIScored(score, self.options.choices.length, 'completed', true, (100 * score / self.options.choices.length) >= self.options.behaviour.passPercentage);
    }

    self.trigger('resize');
  };

  /**
   * Handler invoked when view solution is selected
   */
  SingleChoiceSet.prototype.handleViewSolution = function () {
    var self = this;

    var $tryAgainButton = $('.h5p-question-try-again', self.$container);
    var $showSolutionButton = $('.h5p-question-show-solution', self.$container);
    var buttons = [self.$muteButton, $tryAgainButton, $showSolutionButton];

    // remove tabbable for buttons in result view
    buttons.forEach(function (button) {
      self.setTabbable(button, false);
    });

    self.solutionView.on('hide', function () {
      // re-add tabbable for buttons in result view
      buttons.forEach(function (button) {
        self.setTabbable(button, true);
      });
      self.toggleAriaVisibility(true);
      // Focus on first button when closing solution view
      self.focusButton();
    });

    self.solutionView.show();
    self.toggleAriaVisibility(false);
  };

  /**
   * Toggle elements visibility to Assistive Technologies
   *
   * @param {boolean} enable Make elements visible
   */
  SingleChoiceSet.prototype.toggleAriaVisibility = function (enable) {
    var self = this;
    var ariaHidden = enable ? '' : 'true';
    if (self.$muteButton) {
      self.$muteButton.attr('aria-hidden', ariaHidden);
    }
    self.progressbar.$progressbar.attr('aria-hidden', ariaHidden);
    self.$choices.attr('aria-hidden', ariaHidden);
  };

  /**
   * Register DOM elements before they are attached.
   * Called from H5P.Question.
   */
  SingleChoiceSet.prototype.registerDomElements = function () {
    // Register task content area.
    this.setContent(this.createQuestion());

    // Register buttons with question.
    this.addButtons();

    // Insert feedback and buttons section on the result slide
    this.insertSectionAtElement('feedback', this.resultSlide.$feedbackContainer);
    this.insertSectionAtElement('scorebar', this.resultSlide.$feedbackContainer);
    this.insertSectionAtElement('buttons', this.resultSlide.$buttonContainer);

    // Question is finished
    if (this.options.choices.length === this.currentIndex) {
      this.trigger('question-finished');
    }

    this.trigger('resize');
  };

  /**
   * Add Buttons to question.
   */
  SingleChoiceSet.prototype.addButtons = function () {
    var self = this;

    if (this.options.behaviour.enableRetry) {
      this.addButton('try-again', this.l10n.retryButtonLabel, function () {
        self.resetTask(true);
      }, self.results.corrects !== self.options.choices.length, {
        'aria-label': this.l10n.a11yRetry,
      });
    }

    if (this.options.behaviour.enableSolutionsButton) {
      this.addButton('show-solution', this.l10n.showSolutionButtonLabel, function () {
        self.showSolutions();
      }, self.results.corrects !== self.options.choices.length, {
        'aria-label': this.l10n.a11yShowSolution,
      });
    }
  };

  /**
   * Create main content
   */
  SingleChoiceSet.prototype.createQuestion = function () {
    var self = this;

    self.progressbar.appendTo(self.$container);
    self.$container.append(self.$choices);

    function toggleMute(event) {
      var $button = $(event.target);
      event.preventDefault();
      self.muted = !self.muted;
      $button.attr('aria-pressed', self.muted);
    }

    // Keep this out of H5P.Question, since we are moving the button & feedback
    // region to the last slide
    if (!this.options.behaviour.autoContinue) {

      var handleNextClick = function () {
        if (self.$nextButton.attr('aria-disabled') !== 'true') {
          self.next();
        }
      };

      self.$nextButton = UI.createButton({
        'class': 'h5p-ssc-next-button',
        'aria-label': self.l10n.nextButtonLabel,
        click: handleNextClick,
        keydown: function (event) {
          switch (event.which) {
            case 13: // Enter
            case 32: // Space
              handleNextClick();
              event.preventDefault();
          }
        },
        appendTo: self.$container
      });
      self.toggleNextButton(false);
    }

    if (self.options.behaviour.soundEffectsEnabled) {
      self.$muteButton = $('<div>', {
        'class': 'h5p-sc-sound-control',
        'tabindex': 0,
        'role': 'button',
        'aria-label': self.l10n.muteButtonLabel,
        'aria-pressed': false,
        'on': {
          'keydown': function (event) {
            switch (event.which) {
              case 13: // Enter
              case 32: // Space
                toggleMute(event);
                break;
            }
          }
        },
        'click': toggleMute,
        prependTo: self.$container
      });
    }

    // Append solution view - hidden by default:
    self.solutionView.appendTo(self.$container);

    self.resize();

    // Hide all other slides than the current one:
    self.$container.addClass('initialized');

    return self.$container;
  };

  /**
   * Resize if something outside resizes
   */
  SingleChoiceSet.prototype.resize = function () {
    var self = this;
    var maxHeight = 0;
    self.choices.forEach(function (choice) {
      var choiceHeight = choice.$choice.outerHeight();
      maxHeight = choiceHeight > maxHeight ? choiceHeight : maxHeight;
    });

    // Set minimum height for choices
    self.$choices.css({minHeight: maxHeight + 'px'});
  };

  /**
   * Disable/enable the next button
   * @param  {boolean} enable
   */
  SingleChoiceSet.prototype.toggleNextButton = function (enable) {
    if (this.$nextButton) {
      this.$nextButton.attr('aria-disabled', !enable);
    }
  };

  /**
   * Will jump to the given slide without any though to animations,
   * current slide etc.
   *
   * @public
   */
  SingleChoiceSet.prototype.recklessJump = function (index) {
    var tX = 'translateX(' + (-index * 100) + '%)';
    this.$choices.css({
      '-webkit-transform': tX,
      '-moz-transform': tX,
      '-ms-transform': tX,
      'transform': tX
    });
    this.progressbar.setProgress(index + 1);
  };

  /**
   * Move to slide n
   * @param  {number} index The slide number    to move to
   * @param {boolean} moveFocus True to set focus on first alternative
   */
  SingleChoiceSet.prototype.move = function (index, moveFocus = true) {
    var self = this;
    if (index === this.currentIndex || index > self.$slides.length-1) {
      return;
    }

    var $previousSlide = self.$slides[self.currentIndex];
    var $currentChoice = self.choices[index];
    var $currentSlide = self.$slides[index];
    var isResultSlide = (index >= self.choices.length);

    self.toggleNextButton(false);

    H5P.Transition.onTransitionEnd(self.$choices, function () {
      $previousSlide.removeClass('h5p-sc-current-slide');

      // on slides with answers focus on first alternative
      // if content is root and not on result slide - always move focus
      if (!isResultSlide && (moveFocus || self.isRoot())) {
        $currentChoice.focusOnAlternative(0);
      }
      // on last slide, focus on try again button
      else {
        self.resultSlide.focusScore();
      }
    }, 600);

    // if should show result slide
    if (isResultSlide) {
      self.setScore(self.results.corrects);
    }

    self.$container.toggleClass('navigatable', !isResultSlide);

    // start timing of new slide
    this.startStopWatch(index);

    // move to slide
    $currentSlide.addClass('h5p-sc-current-slide');
    self.recklessJump(index);

    self.currentIndex = index;
  };

  /**
   * Starts a stopwatch for indexed slide
   *
   * @param {number} index
   */
  SingleChoiceSet.prototype.startStopWatch = function (index) {
    this.stopWatches[index] = this.stopWatches[index] || new StopWatch();
    this.stopWatches[index].start();
  };

  /**
   * Stops a stopwatch for indexed slide
   *
   * @param {number} index
   */
  SingleChoiceSet.prototype.stopStopWatch = function (index) {
    if (this.stopWatches[index]) {
      this.stopWatches[index].stop();
    }
  };

  /**
   * Returns the passed time in seconds of a stopwatch on an indexed slide,
   * or 0 if not existing
   *
   * @param {number} index
   * @return {number}
   */
  SingleChoiceSet.prototype.timePassedInStopWatch = function (index) {
    if (this.stopWatches[index] !== undefined) {
      return this.stopWatches[index].passedTime();
    }
    else {
      // if not created, return no passed time,
      return 0;
    }
  };

  /**
   * Returns the time the user has spent on all questions so far
   *
   * @return {number}
   */
  SingleChoiceSet.prototype.getTotalPassedTime = function () {
    return this.stopWatches
      .filter(function (watch) {
        return watch != undefined;
      })
      .reduce(function (sum, watch) {
        return sum + watch.passedTime();
      }, 0);
  };

  /**
   * The following functions implements the CP and IV - Contracts v 1.0 documented here:
   * http://h5p.org/node/1009
   */
  SingleChoiceSet.prototype.getScore = function () {
    return this.results.corrects;
  };

  SingleChoiceSet.prototype.getMaxScore = function () {
    return this.options.choices.length;
  };

  SingleChoiceSet.prototype.getAnswerGiven = function () {
    return (this.results.corrects + this.results.wrongs) > 0;
  };

  SingleChoiceSet.prototype.getTitle = function () {
    return H5P.createTitle((this.contentData && this.contentData.metadata && this.contentData.metadata.title) ? this.contentData.metadata.title : 'Single Choice Set');
  };

  /**
   * Retrieves the xAPI data necessary for generating result reports.
   *
   * @return {object}
   */
  SingleChoiceSet.prototype.getXAPIData = function () {
    var self = this;

    // create array with userAnswer
    var children =  self.options.choices.map(function (question, index) {
      var userResponse = self.userResponses[index] >= 0 ? self.userResponses[index] : '';
      var duration = self.timePassedInStopWatch(index);
      var event = self.createXApiAnsweredEvent(question, userResponse, duration);

      return {
        statement: event.data.statement
      };
    });

    var result = XApiEventBuilder.createResult()
      .score(self.getScore(), self.getMaxScore())
      .duration(self.getTotalPassedTime())
      .build();

    // creates the definition object
    var definition = XApiEventBuilder.createDefinition()
      .interactionType(XApiEventBuilder.interactionTypes.COMPOUND)
      .build();

    var xAPIEvent = XApiEventBuilder.create()
      .verb(XApiEventBuilder.verbs.ANSWERED)
      .contentId(self.contentId, self.subContentId)
      .context(self.getParentAttribute('contentId'), self.getParentAttribute('subContentId'))
      .objectDefinition(definition)
      .result(result)
      .build();

    return {
      statement: xAPIEvent.data.statement,
      children: children
    };
  };

  /**
   * Returns an attribute from this.parent if it exists
   *
   * @param {string} attributeName
   * @return {*|undefined}
   */
  SingleChoiceSet.prototype.getParentAttribute = function (attributeName) {
    var self = this;

    if (self.parent !== undefined) {
      return self.parent[attributeName];
    }
  };

  SingleChoiceSet.prototype.showSolutions = function () {
    this.handleViewSolution();
  };

  /**
   * Reset all answers. This is equal to refreshing the quiz
   * @param {boolean} moveFocus True to move the focus
   * This prevents loss of focus if reset from within content
   */
  SingleChoiceSet.prototype.resetTask = function (moveFocus = false) {
    var self = this;

    // Close solution view if visible:
    this.solutionView.hide();

    // Reset the user's answers
    var classes = ['h5p-sc-reveal-wrong', 'h5p-sc-reveal-correct', 'h5p-sc-selected', 'h5p-sc-drummed', 'h5p-sc-correct-answer'];
    for (var i = 0; i < classes.length; i++) {
      this.$choices.find('.' + classes[i]).removeClass(classes[i]);
    }
    this.results = {
      corrects: 0,
      wrongs: 0
    };

    this.choices.forEach(function (choice) {
      choice.setAnswered(false);
      choice.resetA11yText();
      choice.resetAriaAttributes();
    });

    this.stopWatches.forEach(function (stopWatch) {
      if (stopWatch) {
        stopWatch.reset();
      }
    });

    this.move(0, moveFocus);

    // Reset userResponses as well
    this.userResponses = [];

    // Wait for transition, then remove feedback.
    H5P.Transition.onTransitionEnd(this.$choices, function () {
      self.removeFeedback();
    }, 600);
  };

  /**
   * Clever comment.
   *
   * @public
   * @returns {object}
   */
  SingleChoiceSet.prototype.getCurrentState = function () {
    return this.userResponses.length > 0
      ? {
        progress: this.currentIndex,
        answers: this.results,
        userResponses: this.userResponses
      }
      : undefined;
  };

  /**
   * Generate A11y friendly text
   * 
   * @param  {number} index
   * @param  {number} currentIndex 
   */
  SingleChoiceSet.prototype.readA11yFriendlyText = function (index, currentIndex) {
    var self = this;
    var correctAnswer = self.$choices.find('.h5p-sc-is-correct')[index].textContent.replace(/[\n\r]+|[\s]{2,}/g, ' ').trim();
    let selectedOptionText = this.lastAnswerIsCorrect ? self.l10n.correctText : self.l10n.incorrectText;
    // Announce by ARIA label
    if (!self.options.behaviour.autoContinue) {
      // Set text for a11y
      selectedOptionText = this.lastAnswerIsCorrect ? self.l10n.correctText + self.l10n.shouldSelect : self.l10n.incorrectText + self.l10n.shouldNotSelect;
      self.$choices.find('.h5p-sc-current-slide .h5p-sc-is-correct .h5p-sc-a11y').text(self.l10n.shouldSelect);
      self.$choices.find('.h5p-sc-current-slide .h5p-sc-is-wrong .h5p-sc-a11y').text(self.l10n.shouldNotSelect);
      self.$choices.find('.h5p-sc-current-slide .h5p-sc-alternative').eq(currentIndex).find('.h5p-sc-a11y').text(selectedOptionText);

      // Utilize same variable for the read text
      selectedOptionText = this.lastAnswerIsCorrect ? self.l10n.correctText : self.l10n.incorrectText + correctAnswer + self.l10n.shouldSelect;
    }
    self.read(selectedOptionText);
  };

  /**
   * 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}
   */
  var 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 SingleChoiceSet;
})(H5P.jQuery, H5P.JoubelUI, H5P.Question, H5P.SingleChoiceSet.SingleChoice, H5P.SingleChoiceSet.SolutionView, H5P.SingleChoiceSet.ResultSlide, H5P.SingleChoiceSet.SoundEffects, H5P.SingleChoiceSet.XApiEventBuilder, H5P.SingleChoiceSet.StopWatch);
;/*global H5P*/
H5P.Blanks = (function ($, Question) {
  /**
   * @constant
   * @default
   */
  var STATE_ONGOING = 'ongoing';
  var STATE_CHECKING = 'checking';
  var STATE_SHOWING_SOLUTION = 'showing-solution';
  var STATE_FINISHED = 'finished';

  const XAPI_ALTERNATIVE_EXTENSION = 'https://h5p.org/x-api/alternatives';
  const XAPI_CASE_SENSITIVITY = 'https://h5p.org/x-api/case-sensitivity';
  const XAPI_REPORTING_VERSION_EXTENSION = 'https://h5p.org/x-api/h5p-reporting-version';

  /**
   * @typedef {Object} Params
   *  Parameters/configuration object for Blanks
   *
   * @property {Object} Params.behaviour
   * @property {string} Params.behaviour.confirmRetryDialog
   * @property {string} Params.behaviour.confirmCheckDialog
   *
   * @property {Object} Params.confirmRetry
   * @property {string} Params.confirmRetry.header
   * @property {string} Params.confirmRetry.body
   * @property {string} Params.confirmRetry.cancelLabel
   * @property {string} Params.confirmRetry.confirmLabel
   *
   * @property {Object} Params.confirmCheck
   * @property {string} Params.confirmCheck.header
   * @property {string} Params.confirmCheck.body
   * @property {string} Params.confirmCheck.cancelLabel
   * @property {string} Params.confirmCheck.confirmLabel
   */

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

    // Inheritance
    Question.call(self, 'blanks');

    // IDs
    this.contentId = id;
    this.contentData = contentData;

    this.params = $.extend(true, {}, {
      text: "Fill in",
      questions: [
        "<p>Oslo is the capital of *Norway*.</p>"
      ],
      overallFeedback: [],
      userAnswers: [], // TODO This isn't in semantics?
      showSolutions: "Show solution",
      tryAgain: "Try again",
      checkAnswer: "Check",
      changeAnswer: "Change answer",
      notFilledOut: "Please fill in all blanks to view solution",
      answerIsCorrect: "':ans' is correct",
      answerIsWrong: "':ans' is wrong",
      answeredCorrectly: "Answered correctly",
      answeredIncorrectly: "Answered incorrectly",
      solutionLabel: "Correct answer:",
      inputLabel: "Blank input @num of @total",
      inputHasTipLabel: "Tip available",
      tipLabel: "Tip",
      scoreBarLabel: 'You got :num out of :total points',
      behaviour: {
        enableRetry: true,
        enableSolutionsButton: true,
        enableCheckButton: true,
        caseSensitive: true,
        showSolutionsRequiresInput: true,
        autoCheck: false,
        separateLines: false
      },
      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.',
      a11yHeader: 'Checking mode',
      submitAnswer: 'Submit',
    }, params);

    // Delete empty questions
    for (var i = this.params.questions.length - 1; i >= 0; i--) {
      if (!this.params.questions[i]) {
        this.params.questions.splice(i, 1);
      }
    }

    // Previous state
    this.contentData = contentData;
    if (this.contentData !== undefined && this.contentData.previousState !== undefined) {
      this.previousState = this.contentData.previousState;
    }

    // Clozes
    this.clozes = [];

    // Keep track tabbing forward or backwards
    this.shiftPressed = false;

    H5P.$body.keydown(function (event) {
      if (event.keyCode === 16) {
        self.shiftPressed = true;
      }
    }).keyup(function (event) {
      if (event.keyCode === 16) {
        self.shiftPressed = false;
      }
    });

    // Using instructions as label for our text groups
    this.labelId = 'h5p-blanks-instructions-' + Blanks.idCounter + '-' + H5P.createUUID();
    this.content = self.createQuestions();

    // Check for task media
    var media = self.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: self.params.media.disableImageZooming || false,
            alt: media.params.alt,
            title: media.params.title,
            expandImage: media.params.expandImage,
            minimizeImage: media.params.minimizeImage
          });
        }
      }
      else if (type === 'H5P.Video') {
        if (media.params.sources) {
          // Register task video
          self.setVideo(media);
        }
      }
      else if (type === 'H5P.Audio') {
        if (media.params.files) {
          // Register task audio
          self.setAudio(media);
        }
      }
    }

    // Register task introduction text
    self.setIntroduction('<div id="' + this.labelId + '">' + self.params.text + '</div>');

    // Register task content area
    self.setContent(self.content, {
      'class': self.params.behaviour.separateLines ? 'h5p-separate-lines' : ''
    });

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

    // Restore previous state
    self.setH5PUserState();
  }

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

  /**
   * Create all the buttons for the task
   */
  Blanks.prototype.registerButtons = function () {
    var self = this;

    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);
    }

    if (!self.params.behaviour.autoCheck && this.params.behaviour.enableCheckButton) {
      // Check answer button
      self.addButton('check-answer', self.params.checkAnswer, function () {
        // Move focus to top of content
        self.a11yHeader.innerHTML = self.params.a11yHeader;
        self.a11yHeader.focus();

        self.toggleButtonVisibility(STATE_CHECKING);
        self.markResults();
        self.showEvaluation();
        self.triggerAnswered();
      }, true, {
        'aria-label': self.params.a11yCheck,
      }, {
        confirmationDialog: {
          enable: self.params.behaviour.confirmCheckDialog,
          l10n: self.params.confirmCheck,
          instance: self,
          $parentElement: $container
        },
        textIfSubmitting: self.params.submitAnswer,
        contentData: self.contentData,
      });
    }

    // Show solution button
    self.addButton('show-solution', self.params.showSolutions, function () {
      self.showCorrectAnswers(false);
    }, self.params.behaviour.enableSolutionsButton, {
      'aria-label': self.params.a11yShowSolution,
    });

    // Try again button
    if (self.params.behaviour.enableRetry === true) {
      self.addButton('try-again', self.params.tryAgain, function () {
        self.a11yHeader.innerHTML = '';
        self.resetTask();
        self.$questions.filter(':first').find('input:first').focus();
      }, true, {
        'aria-label': self.params.a11yRetry,
      }, {
        confirmationDialog: {
          enable: self.params.behaviour.confirmRetryDialog,
          l10n: self.params.confirmRetry,
          instance: self,
          $parentElement: $container
        }
      });
    }
    self.toggleButtonVisibility(STATE_ONGOING);
  };

  /**
   * Find blanks in a string and run a handler on those blanks
   *
   * @param {string} question
   *   Question text containing blanks enclosed in asterisks.
   * @param {function} handler
   *   Replaces the blanks text with an input field.
   * @returns {string}
   *   The question with blanks replaced by the given handler.
   */
  Blanks.prototype.handleBlanks = function (question, handler) {
    // Go through the text and run handler on all asterisk
    var clozeEnd, clozeStart = question.indexOf('*');
    var self = this;
    while (clozeStart !== -1 && clozeEnd !== -1) {
      clozeStart++;
      clozeEnd = question.indexOf('*', clozeStart);
      if (clozeEnd === -1) {
        continue; // No end
      }
      var clozeContent = question.substring(clozeStart, clozeEnd).replaceAll(/<\/?[a-z]*\d?>/ig, '');
      var replacer = '';
      if (clozeContent.length) {
        replacer = handler(self.parseSolution(clozeContent));
        clozeEnd++;
      }
      else {
        clozeStart += 1;
      }
      question = question.slice(0, clozeStart - 1) + replacer + question.slice(clozeEnd);
      clozeEnd -= clozeEnd - clozeStart - replacer.length;

      // Find the next cloze
      clozeStart = question.indexOf('*', clozeEnd);
    }
    return question;
  };

  /**
   * Create questitons html for DOM
   */
  Blanks.prototype.createQuestions = function () {
    var self = this;

    var html = '';
    var clozeNumber = 0;
    for (var i = 0; i < self.params.questions.length; i++) {
      var question = self.params.questions[i];

      // Go through the question text and replace all the asterisks with input fields
      question = self.handleBlanks(question, function (solution) {
        // Create new cloze
        clozeNumber += 1;
        var defaultUserAnswer = (self.params.userAnswers.length > self.clozes.length ? self.params.userAnswers[self.clozes.length] : null);
        var cloze = new Blanks.Cloze(solution, self.params.behaviour, defaultUserAnswer, {
          answeredCorrectly: self.params.answeredCorrectly,
          answeredIncorrectly: self.params.answeredIncorrectly,
          solutionLabel: self.params.solutionLabel,
          inputLabel: self.params.inputLabel,
          inputHasTipLabel: self.params.inputHasTipLabel,
          tipLabel: self.params.tipLabel
        });

        self.clozes.push(cloze);
        return cloze;
      });

      html += '<div role="group" aria-labelledby="' + self.labelId + '">' + question + '</div>';
    }

    self.hasClozes = clozeNumber > 0;
    this.$questions = $(html);

    self.a11yHeader = document.createElement('div');
    self.a11yHeader.classList.add('hidden-but-read');
    self.a11yHeader.tabIndex = -1;
    self.$questions[0].insertBefore(self.a11yHeader, this.$questions[0].childNodes[0] || null);

    // Set input fields.
    this.$questions.find('input').each(function (i) {

      /**
       * Observe resizing of input field, so that we can resize
       * the H5P to fit all content when the input field grows in size
       */
      let resizeTimer;
      new ResizeObserver(function () {
        // To avoid triggering resize too often, we wait a second after the last 
        // resize event has been received
        clearTimeout(resizeTimer);
        resizeTimer = setTimeout(function () {
          self.trigger('resize');
        }, 1000);
      }).observe(this);

      var afterCheck;
      if (self.params.behaviour.autoCheck) {
        afterCheck = function () {
          var answer = $("<div>").text(this.getUserAnswer()).html();
          self.read((this.correct() ? self.params.answerIsCorrect : self.params.answerIsWrong).replace(':ans', answer));
          if (self.done || self.allBlanksFilledOut()) {
            // All answers has been given. Show solutions button.
            self.toggleButtonVisibility(STATE_CHECKING);
            self.showEvaluation();
            self.triggerAnswered();
            self.done = true;
          }
        };
      }
      self.clozes[i].setInput($(this), afterCheck, function () {
        self.toggleButtonVisibility(STATE_ONGOING);
        if (!self.params.behaviour.autoCheck) {
          self.hideEvaluation();
        }
      }, i, self.clozes.length);
    }).keydown(function (event) {
      var $this = $(this);

      // Adjust width of text input field to match value
      self.autoGrowTextField($this);

      var $inputs, isLastInput;
      var enterPressed = (event.keyCode === 13);
      var tabPressedAutoCheck = (event.keyCode === 9 && self.params.behaviour.autoCheck);

      if (enterPressed || tabPressedAutoCheck) {
        // Figure out which inputs are left to answer
        $inputs = self.$questions.find('.h5p-input-wrapper:not(.h5p-correct) .h5p-text-input');

        // Figure out if this is the last input
        isLastInput = $this.is($inputs[$inputs.length - 1]);
      }

      if ((tabPressedAutoCheck && isLastInput && !self.shiftPressed) ||
          (enterPressed && isLastInput)) {
        // Focus first button on next tick
        setTimeout(function () {
          self.focusButton();
        }, 10);
      }

      if (enterPressed) {
        if (isLastInput) {
          // Check answers
          $this.trigger('blur');
        }
        else {
          // Find next input to focus
          $inputs.eq($inputs.index($this) + 1).focus();
        }

        return false; // Prevent form submission on enter key
      }
    }).on('change', function () {
      self.answered = true;
      self.triggerXAPI('interacted');
    });

    self.on('resize', function () {
      self.resetGrowTextField();
    });

    return this.$questions;
  };

  /**
   *
   */
  Blanks.prototype.autoGrowTextField = function ($input) {
    // Do not set text field size when separate lines is enabled
    if (this.params.behaviour.separateLines) {
      return;
    }

    var self = this;
    var fontSize = parseInt($input.css('font-size'), 10);
    var minEm = 3;
    var minPx = fontSize * minEm;
    var rightPadEm = 3.25;
    var rightPadPx = fontSize * rightPadEm;
    var static_min_pad = 0.5 * fontSize;

    setTimeout(function () {
      var tmp = $('<div>', {
        'text': $input.val()
      });
      tmp.css({
        'position': 'absolute',
        'white-space': 'nowrap',
        'font-size': $input.css('font-size'),
        'font-family': $input.css('font-family'),
        'padding': $input.css('padding'),
        'width': 'initial'
      });
      $input.parent().append(tmp);
      var width = tmp.width();
      var parentWidth = self.$questions.width();
      tmp.remove();
      if (width <= minPx) {
        // Apply min width
        $input.width(minPx + static_min_pad);
      }
      else if (width + rightPadPx >= parentWidth) {
        // Apply max width of parent
        $input.width(parentWidth - rightPadPx);
      }
      else {
        // Apply width that wraps input
        $input.width(width + static_min_pad);
      }
    }, 1);
  };

  /**
   * Resize all text field growth to current size.
   */
  Blanks.prototype.resetGrowTextField = function () {
    var self = this;

    this.$questions.find('input').each(function () {
      self.autoGrowTextField($(this));
    });
  };

  /**
   * Toggle buttons dependent of state.
   *
   * Using CSS-rules to conditionally show/hide using the data-attribute [data-state]
   */
  Blanks.prototype.toggleButtonVisibility = function (state) {
    // The show solutions button is hidden if all answers are correct
    var allCorrect = (this.getScore() === this.getMaxScore());
    if (this.params.behaviour.autoCheck && allCorrect) {
      // We are viewing the solutions
      state = STATE_FINISHED;
    }

    if (this.params.behaviour.enableSolutionsButton) {
      if (state === STATE_CHECKING && !allCorrect) {
        this.showButton('show-solution');
      }
      else {
        this.hideButton('show-solution');
      }
    }

    if (this.params.behaviour.enableRetry) {
      if ((state === STATE_CHECKING && !allCorrect) || state === STATE_SHOWING_SOLUTION) {
        this.showButton('try-again');
      }
      else {
        this.hideButton('try-again');
      }
    }

    if (state === STATE_ONGOING) {
      this.showButton('check-answer');
    }
    else {
      this.hideButton('check-answer');
    }

    this.trigger('resize');
  };

  /**
   * Check if solution is allowed. Warn user if not
   */
  Blanks.prototype.allowSolution = function () {
    if (this.params.behaviour.showSolutionsRequiresInput === true) {
      if (!this.allBlanksFilledOut()) {
        this.updateFeedbackContent(this.params.notFilledOut);
        this.read(this.params.notFilledOut);
        return false;
      }
    }
    return true;
  };

  /**
   * Check if all blanks are filled out
   *
   * @method allBlanksFilledOut
   * @return {boolean} Returns true if all blanks are filled out.
   */
  Blanks.prototype.allBlanksFilledOut = function () {
    return !this.clozes.some(function (cloze) {
      return !cloze.filledOut();
    });
  };

  /**
   * Mark which answers are correct and which are wrong and disable fields if retry is off.
   */
  Blanks.prototype.markResults = function () {
    var self = this;
    for (var i = 0; i < self.clozes.length; i++) {
      self.clozes[i].checkAnswer();
      if (!self.params.behaviour.enableRetry) {
        self.clozes[i].disableInput();
      }
    }
    this.trigger('resize');
  };

  /**
   * Removed marked results
   */
  Blanks.prototype.removeMarkedResults = function () {
    this.$questions.find('.h5p-input-wrapper').removeClass('h5p-correct h5p-wrong');
    this.$questions.find('.h5p-input-wrapper > input').attr('disabled', false);
    this.trigger('resize');
  };


  /**
   * Displays the correct answers
   * @param {boolean} [alwaysShowSolution]
   *  Will always show solution if true
   */
  Blanks.prototype.showCorrectAnswers = function (alwaysShowSolution) {
    if (!alwaysShowSolution && !this.allowSolution()) {
      return;
    }

    this.toggleButtonVisibility(STATE_SHOWING_SOLUTION);
    this.hideSolutions();

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

  /**
   * Toggle input allowed for all input fields
   *
   * @method function
   * @param  {boolean} enabled True if fields should allow input, otherwise false
   */
  Blanks.prototype.toggleAllInputs = function (enabled) {
    for (var i = 0; i < this.clozes.length; i++) {
      this.clozes[i].toggleInput(enabled);
    }
  };

  /**
   * Display the correct solution for the input boxes.
   *
   * This is invoked from CP and QS - be carefull!
   */
  Blanks.prototype.showSolutions = function () {
    this.params.behaviour.enableSolutionsButton = true;
    this.toggleButtonVisibility(STATE_FINISHED);
    this.markResults();
    this.showEvaluation();
    this.showCorrectAnswers(true);
    this.toggleAllInputs(false);
    //Hides all buttons in "show solution" mode.
    this.hideButtons();
  };

  /**
   * Resets the complete task.
   * Used in contracts.
   * @public
   */
  Blanks.prototype.resetTask = function () {
    this.answered = false;
    this.hideEvaluation();
    this.hideSolutions();
    this.clearAnswers();
    this.removeMarkedResults();
    this.toggleButtonVisibility(STATE_ONGOING);
    this.resetGrowTextField();
    this.toggleAllInputs(true);
    this.done = false;
  };

  /**
   * Hides all buttons.
   * @public
   */
  Blanks.prototype.hideButtons = function () {
    this.toggleButtonVisibility(STATE_FINISHED);
  };

  /**
   * Trigger xAPI answered event
   */
  Blanks.prototype.triggerAnswered = function () {
    this.answered = true;
    var xAPIEvent = this.createXAPIEventTemplate('answered');
    this.addQuestionToXAPI(xAPIEvent);
    this.addResponseToXAPI(xAPIEvent);
    this.trigger(xAPIEvent);
  };

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

  /**
   * Generate xAPI object definition used in xAPI statements.
   * @return {Object}
   */
  Blanks.prototype.getxAPIDefinition = function () {
    var definition = {};
    // The below replaceAll makes sure we don't get any unwanted XAPI_PLACEHOLDERs in the description
    definition.description = {
      'en-US': this.params.text.replaceAll(/_{10,}/gi, '_________')
    };
    definition.type = 'http://adlnet.gov/expapi/activities/cmi.interaction';
    definition.interactionType = 'fill-in';

    const clozeSolutions = [];
    let crp = '';
    // xAPI forces us to create solution patterns for all possible solution combinations
    for (var i = 0; i < this.params.questions.length; i++) {
      // The below replaceAll makes sure we don't get any unwanted XAPI_PLACEHOLDERs in the questions
      let question = this.params.questions[i].replaceAll(/_{10,}/gi, '_________');

      question = this.handleBlanks(question, function (solution) {
        // Collect all solution combinations for the H5P Alternative extension
        clozeSolutions.push(solution.solutions);

        // Create a basic response pattern out of the first alternative for each blanks field
        crp += (!crp ? '' : '[,]') + solution.solutions[0];

        // We replace the solutions in the question with a "blank"
        return '__________';
      });
      definition.description['en-US'] += question;
    }

    // Set the basic response pattern (not supporting multiple alternatives for blanks)
    definition.correctResponsesPattern = [
      '{case_matters=' + this.params.behaviour.caseSensitive + '}' + crp,
    ];

    // Add the H5P Alternative extension which provides all the combinations of different answers
    // Reporting software will need to support this extension for alternatives to work.
    definition.extensions = definition.extensions || {};
    definition.extensions[XAPI_CASE_SENSITIVITY] = this.params.behaviour.caseSensitive;
    definition.extensions[XAPI_ALTERNATIVE_EXTENSION] = clozeSolutions;

    return definition;
  };

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

    // Set reporting module version if alternative extension is used
    if (this.hasAlternatives) {
      const context = xAPIEvent.getVerifiedStatementValue(['context']);
      context.extensions = context.extensions || {};
      context.extensions[XAPI_REPORTING_VERSION_EXTENSION] = '1.1.0';
    }
  };

  /**
   * Parse the solution text (text between the asterisks)
   *
   * @param {string} solutionText
   * @returns {object} with the following properties
   *  - tip: the tip text for this solution, undefined if no tip
   *  - solutions: array of solution words
   */
  Blanks.prototype.parseSolution = function (solutionText) {
    var tip, solution;

    var tipStart = solutionText.indexOf(':');
    if (tipStart !== -1) {
      // Found tip, now extract
      tip = solutionText.slice(tipStart + 1);
      solution = solutionText.slice(0, tipStart);
    }
    else {
      solution = solutionText;
    }

    // Split up alternatives
    var solutions = solution.split('/');
    this.hasAlternatives = this.hasAlternatives || solutions.length > 1;

    // Trim solutions
    for (var i = 0; i < solutions.length; i++) {
      solutions[i] = H5P.trim(solutions[i]);

      //decodes html entities
      var elem = document.createElement('textarea');
      elem.innerHTML = solutions[i];
      solutions[i] = elem.value;
    }

    return {
      tip: tip,
      solutions: solutions
    };
  };

  /**
   * Add the response part to an xAPI event
   *
   * @param {H5P.XAPIEvent} xAPIEvent
   *  The xAPI event we will add a response to
   */
  Blanks.prototype.addResponseToXAPI = function (xAPIEvent) {
    xAPIEvent.setScoredResult(this.getScore(), this.getMaxScore(), this);
    xAPIEvent.data.statement.result.response = this.getxAPIResponse();
  };

  /**
   * Generate xAPI user response, used in xAPI statements.
   * @return {string} User answers separated by the "[,]" pattern
   */
  Blanks.prototype.getxAPIResponse = function () {
    var usersAnswers = this.getCurrentState();
    return usersAnswers.join('[,]');
  };

  /**
   * Show evaluation widget, i.e: 'You got x of y blanks correct'
   */
  Blanks.prototype.showEvaluation = function () {
    var maxScore = this.getMaxScore();
    var score = this.getScore();
    var scoreText = H5P.Question.determineOverallFeedback(this.params.overallFeedback, score / maxScore).replace('@score', score).replace('@total', maxScore);

    this.setFeedback(scoreText, score, maxScore, this.params.scoreBarLabel);

    if (score === maxScore) {
      this.toggleButtonVisibility(STATE_FINISHED);
    }
  };

  /**
   * Hide the evaluation widget
   */
  Blanks.prototype.hideEvaluation = function () {
    // Clear evaluation section.
    this.removeFeedback();
  };

  /**
   * Hide solutions. (/try again)
   */
  Blanks.prototype.hideSolutions = function () {
    // Clean solution from quiz
    this.$questions.find('.h5p-correct-answer').remove();
  };

  /**
   * Get maximum number of correct answers.
   *
   * @returns {Number} Max points
   */
  Blanks.prototype.getMaxScore = function () {
    var self = this;
    return self.clozes.length;
  };

  /**
   * Count the number of correct answers.
   *
   * @returns {Number} Points
   */
  Blanks.prototype.getScore = function () {
    var self = this;
    var correct = 0;
    for (var i = 0; i < self.clozes.length; i++) {
      if (self.clozes[i].correct()) {
        correct++;
      }
      self.params.userAnswers[i] = self.clozes[i].getUserAnswer();
    }

    return correct;
  };

  Blanks.prototype.getTitle = function () {
    return H5P.createTitle((this.contentData.metadata && this.contentData.metadata.title) ? this.contentData.metadata.title : 'Fill In');
  };

  /**
   * Clear the user's answers
   */
  Blanks.prototype.clearAnswers = function () {
    this.clozes.forEach(function (cloze) {
      cloze.setUserInput('');
      cloze.resetAriaLabel();
    });
  };

  /**
   * Checks if all has been answered.
   *
   * @returns {Boolean}
   */
  Blanks.prototype.getAnswerGiven = function () {
    return this.answered || !this.hasClozes;
  };

  /**
   * Helps set focus the given input field.
   * @param {jQuery} $input
   */
  Blanks.setFocus = function ($input) {
    setTimeout(function () {
      $input.focus();
    }, 1);
  };

  /**
   * Returns an object containing content of each cloze
   *
   * @returns {object} object containing content for each cloze
   */
  Blanks.prototype.getCurrentState = function () {
    var clozesContent = [];

    // Get user input for every cloze
    this.clozes.forEach(function (cloze) {
      clozesContent.push(cloze.getUserAnswer());
    });
    return clozesContent;
  };

  /**
   * Sets answers to current user state
   */
  Blanks.prototype.setH5PUserState = function () {
    var self = this;
    var isValidState = (this.previousState !== undefined &&
                        this.previousState.length &&
                        this.previousState.length === this.clozes.length);

    // Check that stored user state is valid
    if (!isValidState) {
      return;
    }

    // Set input from user state
    var hasAllClozesFilled = true;
    this.previousState.forEach(function (clozeContent, ccIndex) {

      // Register that an answer has been given
      if (clozeContent.length) {
        self.answered = true;
      }

      var cloze = self.clozes[ccIndex];
      cloze.setUserInput(clozeContent);

      // Handle instant feedback
      if (self.params.behaviour.autoCheck) {
        if (cloze.filledOut()) {
          cloze.checkAnswer();
        }
        else {
          hasAllClozesFilled = false;
        }
      }
    });

    if (self.params.behaviour.autoCheck && hasAllClozesFilled) {
      self.showEvaluation();
      self.toggleButtonVisibility(STATE_CHECKING);
    }
  };

  /**
   * Disables any active input. Useful for freezing the task and dis-allowing
   * modification of wrong answers.
   */
  Blanks.prototype.disableInput = function () {
    this.$questions.find('input').attr('disabled', true);
  };

  Blanks.idCounter = 0;

  return Blanks;
})(H5P.jQuery, H5P.Question);

/**
 * Static utility method for parsing H5P.Blanks qestion into a format useful
 * for creating reports.
 *
 * Example question: 'H5P content may be edited using a *browser/web-browser:something you use every day*.'
 *
 * Produces the following result:
 * [
 *   {
 *     type: 'text',
 *     content: 'H5P content may be edited using a '
 *   },
 *   {
 *     type: 'answer',
 *     correct: ['browser', 'web-browser']
 *   },
 *   {
 *     type: 'text',
 *     content: '.'
 *   }
 * ]
 *
 * @param {string} question
 */
H5P.Blanks.parseText = function (question) {
  var blank = new H5P.Blanks({ question: question });

  /**
   * Parses a text into an array where words starting and ending
   * with an asterisk are separated from other text.
   * e.g ["this", "*is*", " an ", "*example*"]
   *
   * @param {string} text
   *
   * @return {string[]}
   */
  function tokenizeQuestionText(text) {
    return text.split(/(\*.*?\*)/).filter(function (str) {
      return str.length > 0; }
    );
  }

  function startsAndEndsWithAnAsterisk(str) {
    return str.substr(0,1) === '*' && str.substr(-1) === '*';
  }

  function replaceHtmlTags(str, value) {
    return str.replace(/<[^>]*>/g, value);
  }

  return tokenizeQuestionText(replaceHtmlTags(question, '')).map(function (part) {
    return startsAndEndsWithAnAsterisk(part) ?
      ({
        type: 'answer',
        correct: blank.parseSolution(part.slice(1, -1)).solutions
      }) :
      ({
        type: 'text',
        content: part
      });
  });
};
;(function ($, Blanks) {

  /**
   * Simple private class for keeping track of clozes.
   *
   * @class H5P.Blanks.Cloze
   * @param {string} answer
   * @param {Object} behaviour Behavioral settings for the task from semantics
   * @param {boolean} behaviour.acceptSpellingErrors - If true, answers will also count correct if they contain small spelling errors.
   * @param {string} defaultUserAnswer
   * @param {Object} l10n Localized texts
   * @param {string} l10n.solutionLabel Assistive technology label for cloze solution
   * @param {string} l10n.inputLabel Assistive technology label for cloze input
   * @param {string} l10n.inputHasTipLabel Assistive technology label for input with tip
   * @param {string} l10n.tipLabel Label for tip icon
   */
  Blanks.Cloze = function (solution, behaviour, defaultUserAnswer, l10n) {
    var self = this;
    var $input, $wrapper;
    var answers = solution.solutions;
    var answer = answers.join('/');
    var tip = solution.tip;
    var checkedAnswer = null;
    var inputLabel = l10n.inputLabel;

    if (behaviour.caseSensitive !== true) {
      // Convert possible solutions into lowercase
      for (var i = 0; i < answers.length; i++) {
        answers[i] = answers[i].toLowerCase();
      }
    }

    /**
     * Check if the answer is correct.
     *
     * @private
     * @param {string} answered
     */
    var correct = function (answered) {
      if (behaviour.caseSensitive !== true) {
        answered = answered.toLowerCase();
      }
      for (var i = 0; i < answers.length; i++) {
        // Damerau-Levenshtein comparison
        if (behaviour.acceptSpellingErrors === true) {
          var levenshtein = H5P.TextUtilities.computeLevenshteinDistance(answered, H5P.trim(answers[i]), true);
          /*
           * The correctness is temporarily computed by word length and number of number of operations
           * required to change one word into the other (Damerau-Levenshtein). It's subject to
           * change, cmp. https://github.com/otacke/udacity-machine-learning-engineer/blob/master/submissions/capstone_proposals/h5p_fuzzy_blanks.md
           */
          if ((answers[i].length > 9) && (levenshtein <= 2)) {
            return true;
          } else if ((answers[i].length > 3) && (levenshtein <= 1)) {
            return true;
          }
        }
        // regular comparison
        if (answered === H5P.trim(answers[i])) {
          return true;
        }
      }
      return false;
    };

    /**
     * Check if filled out.
     *
     * @param {boolean}
     */
    this.filledOut = function () {
      var answered = this.getUserAnswer();
      // Blank can be correct and is interpreted as filled out.
      return (answered !== '' || correct(answered));
    };

    /**
     * Check the cloze and mark it as wrong or correct.
     */
    this.checkAnswer = function () {
      checkedAnswer = this.getUserAnswer();
      var isCorrect = correct(checkedAnswer);
      if (isCorrect) {
        $wrapper.addClass('h5p-correct');
        $input.attr('disabled', true)
          .attr('aria-label', inputLabel + '. ' + l10n.answeredCorrectly);
      }
      else {
        $wrapper.addClass('h5p-wrong');
        $input.attr('aria-label', inputLabel + '. ' + l10n.answeredIncorrectly);
      }
    };

    /**
     * Disables input.
     * @method disableInput
     */
    this.disableInput = function () {
      this.toggleInput(false);
    };

    /**
     * Enables input.
     * @method enableInput
     */
    this.enableInput = function () {
      this.toggleInput(true);
    };

    /**
     * Toggles input enable/disable
     * @method toggleInput
     * @param  {boolean}   enabled True if input should be enabled, otherwise false
     */
    this.toggleInput = function (enabled) {
      $input.attr('disabled', !enabled);
    };

    /**
     * Show the correct solution.
     */
    this.showSolution = function () {
      if (correct(this.getUserAnswer())) {
        return; // Only for the wrong ones
      }

      $('<span>', {
        'aria-hidden': true,
        'class': 'h5p-correct-answer',
        text: H5P.trim(answer.replace(/\s*\/\s*/g, '/')),
        insertAfter: $wrapper
      });
      $input.attr('disabled', true);
      var ariaLabel = inputLabel + '. ' +
        l10n.solutionLabel + ' ' + answer + '. ' +
        l10n.answeredIncorrectly;

      $input.attr('aria-label', ariaLabel);
    };

    /**
     * @returns {boolean}
     */
    this.correct = function () {
      return correct(this.getUserAnswer());
    };

    /**
     * Set input element.
     *
     * @param {H5P.jQuery} $element
     * @param {function} afterCheck
     * @param {function} afterFocus
     * @param {number} clozeIndex Index of cloze
     * @param {number} totalCloze Total amount of clozes in blanks
     */
    this.setInput = function ($element, afterCheck, afterFocus, clozeIndex, totalCloze) {
      $input = $element;
      $wrapper = $element.parent();
      inputLabel = inputLabel.replace('@num', (clozeIndex + 1))
        .replace('@total', totalCloze);

      // Add tip if tip is set
      if(tip !== undefined && tip.trim().length > 0) {
        $wrapper.addClass('has-tip')
          .append(H5P.JoubelUI.createTip(tip, {
            tipLabel: l10n.tipLabel
          }));
        inputLabel += '. ' + l10n.inputHasTipLabel;
      }

      $input.attr('aria-label', inputLabel);

      if (afterCheck !== undefined) {
        $input.blur(function () {
          if (self.filledOut()) {
            // Check answers
            if (!behaviour.enableRetry) {
              self.disableInput();
            }
            self.checkAnswer();
            afterCheck.apply(self);
          }
        });
      }
      $input.keyup(function () {
        if (checkedAnswer !== null && checkedAnswer !== self.getUserAnswer()) {
          // The Answer has changed since last check
          checkedAnswer = null;
          $wrapper.removeClass('h5p-wrong');
          $input.attr('aria-label', inputLabel);
          if (afterFocus !== undefined) {
            afterFocus();
          }
        }
      });
    };

    /**
     * @returns {string} Cloze html
     */
    this.toString = function () {
      var extra = defaultUserAnswer ? ' value="' + defaultUserAnswer + '"' : '';
      var result = '<span class="h5p-input-wrapper"><input type="text" class="h5p-text-input" autocomplete="off" autocapitalize="off" spellcheck="false"' + extra + '></span>';
      self.length = result.length;
      return result;
    };

    /**
     * @returns {string} Trimmed answer
     */
    this.getUserAnswer = function () {
      const trimmedAnswer = H5P.trim($input.val().replace(/\&nbsp;/g, ' '));
      // Set trimmed answer
      $input.val(trimmedAnswer);
      if (behaviour.formulaEditor) {
        // If fomula editor is enabled set trimmed text 
        $input.parent().find('.wiris-h5p-input').html(trimmedAnswer);
      }
      return trimmedAnswer;
    };

    /**
     * @param {string} text New input text
     */
    this.setUserInput = function (text) {
      $input.val(text);
    };

    /**
     * Resets aria label of input field
     */
    this.resetAriaLabel = function () {
      $input.attr('aria-label', inputLabel);
    };
  };

})(H5P.jQuery, H5P.Blanks);
;/*! For license information please see h5p-interactive-book.js.LICENSE.txt */
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e.color[2]+=e.color[2]*t,e},grayscale(){const t=this.rgb().color,e=.3*t[0]+.59*t[1]+.11*t[2];return c.rgb(e,e,e)},fade(t){return this.alpha(this.valpha-this.valpha*t)},opaquer(t){return this.alpha(this.valpha+this.valpha*t)},rotate(t){const e=this.hsl();let s=e.color[0];return s=(s+t)%360,s=s<0?360+s:s,e.color[0]=s,e},mix(t,e){if(!t||!t.rgb)throw new Error('Argument to "mix" was not a Color instance, but rather an instance of '+typeof t);const s=t.rgb(),a=this.rgb(),r=void 0===e?.5:e,i=2*r-1,n=s.alpha()-a.alpha(),o=((i*n==-1?i:(i+n)/(1+i*n))+1)/2,h=1-o;return c.rgb(o*s.red()+h*a.red(),o*s.green()+h*a.green(),o*s.blue()+h*a.blue(),s.alpha()*r+a.alpha()*(1-r))}};for(const t of Object.keys(r)){if(i.includes(t))continue;const{channels:e}=r[t];c.prototype[t]=function(...e){return this.model===t?new c(this):e.length>0?new c(e,t):new c([...(s=r[this.model][t].raw(this.color),Array.isArray(s)?s:[s]),this.valpha],t);var s},c[t]=function(...s){let a=s[0];return"number"==typeof a&&(a=d(s,e)),new 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e)s.o(e,a)&&!s.o(t,a)&&Object.defineProperty(t,a,{enumerable:!0,get:e[a]})},s.o=(t,e)=>Object.prototype.hasOwnProperty.call(t,e),(()=>{"use strict";const t=class{static extractFragmentsFromURL(t,e){if(!e.location.hash)return{};const s={};return e.location.hash.replace("#","").split("&").forEach((t=>{if(-1===t.indexOf("="))return;const e=t.split("=");s[e[0]]=e[1]})),"function"!=typeof t||t(s)?s:{}}static createFragmentsString(t){let e=[];for(const s in t)e.push(`${s}=${t[s]}`);return`#${e.join("&")}`}static areFragmentsEqual(t,e,s=[]){for(const a in t)if(t.hasOwnProperty(a)){if(s.length>0&&-1===s.indexOf(a))continue;if(!e[a]||t[a].toString()!==e[a].toString())return!1}return!0}};class e extends H5P.EventDispatcher{constructor(t,e,s,a,r){super(),this.id=e,this.parent=a,this.behaviour=t.behaviour,this.content=document.createElement("ul"),this.content.classList.add("navigation-list"),this.container=this.addSideBar(),this.l10n=t.l10n,this.chapters=this.findAllChapters(r),this.chapterNodes=this.getChapterNodes(),s&&(this.titleElem=this.addMainTitle(s),this.container.appendChild(this.titleElem)),this.chapterNodes.forEach((t=>{this.content.appendChild(t)})),this.chapters.length>20&&this.content.classList.add("large-navigation-list"),this.container.appendChild(this.content),this.addTransformListener(),this.initializeNavigationControls()}initializeNavigationControls(){const t=Object.freeze({UP:38,DOWN:40});this.chapterNodes.forEach(((e,s)=>{e.querySelector(".h5p-interactive-book-navigation-chapter-button").addEventListener("keydown",(e=>{switch(e.keyCode){case t.UP:this.setFocusToChapterItem(s,-1),e.preventDefault();break;case t.DOWN:this.setFocusToChapterItem(s,1),e.preventDefault()}}));const a=e.querySelectorAll(".h5p-interactive-book-navigation-section");for(let e=0;e<a.length;e++){a[e].querySelector(".section-button").addEventListener("keydown",(a=>{switch(a.keyCode){case t.UP:this.setFocusToSectionItem(s,e,-1),a.preventDefault();break;case t.DOWN:this.setFocusToSectionItem(s,e,1),a.preventDefault()}}))}}))}focus(){this.content.querySelector("button").focus()}setFocusToChapterItem(t,e=0){let s=t+e;if(s<0?s=this.chapterNodes.length-1:s>this.chapterNodes.length-1&&(s=0),e){const a=e>0?t:s,r=this.chapterNodes[a];if(!r.classList.contains("h5p-interactive-book-navigation-closed")){const t=r.querySelectorAll(".h5p-interactive-book-navigation-section");if(t.length){const s=e>0?0:t.length-1;return void this.setFocusToSectionItem(a,s)}}}const a=this.chapterNodes[s].querySelector(".h5p-interactive-book-navigation-chapter-button");this.setFocusToItem(a,s)}setFocusToSectionItem(t,e,s=0){const a=this.chapterNodes[t].querySelectorAll(".h5p-interactive-book-navigation-section"),r=e+s;if(r>a.length-1)return void this.setFocusToChapterItem(t+1);if(r<0)return void this.setFocusToChapterItem(t);const i=a[r].querySelector(".section-button");this.setFocusToItem(i,t)}setFocusToItem(t,e,s=!1){this.chapterNodes.forEach(((t,s)=>{const a=t.querySelector(".h5p-interactive-book-navigation-chapter-button");s===e?a.classList.add("h5p-interactive-book-navigation-current"):a.classList.remove("h5p-interactive-book-navigation-current"),a.setAttribute("tabindex","-1");const r=t.querySelectorAll(".h5p-interactive-book-navigation-section");for(let t=0;t<r.length;t++){r[t].querySelector(".section-button").setAttribute("tabindex","-1")}})),t.setAttribute("tabindex","0"),this.focusedChapter=e,s||t.focus()}addSideBar(){const t=document.createElement("div");return t.id="h5p-interactive-book-navigation-menu",t.classList.add("h5p-interactive-book-navigation"),t}addMainTitle(t){const e=document.createElement("h2");e.classList.add("navigation-title"),e.innerHTML=t,e.setAttribute("title",t);const s=document.createElement("div");return s.classList.add("h5p-interactive-book-navigation-maintitle"),s.appendChild(e),s}findSectionsInChapter(t){const e=[],s=t.sections;for(let t=0;t<s.length;t++){const a=s[t].content;let r="";if("H5P.Link"===a.library.split(" ")[0])r=a.params.title?a.params.title:"New link";else r=a.metadata.title;e.push({...s[t],title:r,id:a.subContentId?`h5p-interactive-book-section-${a.subContentId}`:void 0})}return e}findAllChapters(t){const e=[];for(let s=0;s<t.length;s++)e.push({...t[s],id:t[s].isSummary?"h5p-interactive-book-chapter-summary":`h5p-interactive-book-chapter-${t[s].instance.subContentId}`,sections:this.findSectionsInChapter(t[s])});return e}toggleChapter(t,e){e=void 0!==e?e:!t.classList.contains("h5p-interactive-book-navigation-closed");const s=t.querySelector(".h5p-interactive-book-navigation-sectionlist"),a=t.getElementsByClassName("h5p-interactive-book-navigation-chapter-accordion")[0];t.querySelector(".h5p-interactive-book-navigation-chapter-button").setAttribute("aria-expanded",(!e).toString()),!0===e?(t.classList.add("h5p-interactive-book-navigation-closed"),a&&(a.classList.remove("icon-expanded"),a.classList.add("icon-collapsed"),s&&(s.setAttribute("aria-hidden",!0),s.setAttribute("tabindex","-1")))):(t.classList.remove("h5p-interactive-book-navigation-closed"),a&&(a.classList.remove("icon-collapsed"),a.classList.add("icon-expanded"),s&&(s.removeAttribute("aria-hidden"),s.removeAttribute("tabindex"))))}redirectHandler(t){if(this.chapterNodes.forEach(((e,s)=>{this.toggleChapter(e,s!==t)})),this.parent.trigger("resize"),t!==this.focusedChapter){const e=this.chapterNodes[t].querySelector(".h5p-interactive-book-navigation-chapter-button");this.setFocusToItem(e,t,!0)}}resetIndicators(){this.chapterNodes.forEach(((t,e)=>{this.updateChapterProgressIndicator(e,"BLANK");const s=t.getElementsByClassName("h5p-interactive-book-navigation-section");for(let t of s){const e=t.querySelector(".h5p-interactive-book-navigation-section-icon");e&&(e.classList.remove("icon-question-answered"),e.classList.add("icon-chapter-blank"))}}))}updateChapterProgressIndicator(t,e){if(!this.behaviour.progressIndicators)return;if(this.chapters[t].isSummary)return;const s=this.chapterNodes[t].getElementsByClassName("h5p-interactive-book-navigation-chapter-progress")[0];"BLANK"===e?(s.classList.remove("icon-chapter-started"),s.classList.remove("icon-chapter-done"),s.classList.add("icon-chapter-blank")):"DONE"===e?(s.classList.remove("icon-chapter-blank"),s.classList.remove("icon-chapter-started"),s.classList.add("icon-chapter-done")):"STARTED"===e&&(s.classList.remove("icon-chapter-blank"),s.classList.remove("icon-chapter-done"),s.classList.add("icon-chapter-started"))}setSectionMarker(t,e){const s=this.chapterNodes[t].querySelector(".h5p-interactive-book-navigation-section-"+e+" .h5p-interactive-book-navigation-section-icon");s&&(s.classList.remove("icon-chapter-blank"),s.classList.add("icon-question-answered"))}getNodesFromChapter(t,e){const s=document.createElement("li"),a="h5p-interactive-book-sectionlist-"+e;if(s.classList.add("h5p-interactive-book-navigation-chapter"),t.isSummary){s.classList.add("h5p-interactive-book-navigation-summary-button");const t=this.parent.chapters[e].instance.summaryMenuButton;return t.classList.add("h5p-interactive-book-navigation-chapter-button"),s.appendChild(t),s}const r=document.createElement("div");r.classList.add("h5p-interactive-book-navigation-chapter-accordion");const i=document.createElement("div");i.classList.add("h5p-interactive-book-navigation-chapter-title-text"),i.innerHTML=t.title,i.setAttribute("title",t.title);const n=document.createElement("div");this.behaviour.progressIndicators&&(n.classList.add("icon-chapter-blank"),n.classList.add("h5p-interactive-book-navigation-chapter-progress"));const o=document.createElement("button");o.setAttribute("tabindex",0===e?"0":"-1"),o.classList.add("h5p-interactive-book-navigation-chapter-button"),this.parent.activeChapter!==e?(r.classList.add("icon-collapsed"),o.setAttribute("aria-expanded","false")):(r.classList.add("icon-expanded"),o.setAttribute("aria-expanded","true")),o.setAttribute("aria-controls",a),o.onclick=t=>{const s=!t.currentTarget.querySelector(".h5p-interactive-book-navigation-chapter-accordion").classList.contains("hidden"),a="true"===t.currentTarget.getAttribute("aria-expanded");if(this.isOpenOnMobile()&&this.parent.trigger("toggleMenu"),this.isOpenOnMobile()||!s||!a){const t={h5pbookid:this.parent.contentId,chapter:this.chapters[e].id,section:0};this.parent.trigger("newChapter",t)}s&&(this.toggleChapter(t.currentTarget.parentElement),this.parent.trigger("resize"))},o.appendChild(r),o.appendChild(i),o.appendChild(n),s.appendChild(o),this.parent.activeChapter===e?s.querySelector(".h5p-interactive-book-navigation-chapter-button").classList.add("h5p-interactive-book-navigation-current"):this.toggleChapter(s,!0);const c=document.createElement("ul");c.classList.add("h5p-interactive-book-navigation-sectionlist"),c.id=a;const h=[];for(let t=0;t<this.chapters[e].sections.length;t++)if(this.parent.chapters[e].sections[t].isTask){const s=this.createSectionLink(e,t);h.push(s),c.appendChild(s)}else{const s=this.chapters[e].sections[t].content;if("H5P.AdvancedText"===s.library.split(" ")[0]){const a=document.createElement("div");a.innerHTML=s.params.text;const r=a.querySelectorAll("h2, h3");for(let s=0;s<r.length;s++){const a=r[s],i=this.createSectionLink(e,t,a.textContent,s);h.push(i),c.appendChild(i)}}}if(t.tasksLeft&&(t.maxTasks=t.tasksLeft),0===h.length){const t=s.querySelector(".h5p-interactive-book-navigation-chapter-accordion");t&&t.classList.add("hidden")}return s.appendChild(c),s}createSectionLink(t,e,s=null,a=null){const r=this.chapters[t].sections[e],i=document.createElement("div");i.innerHTML=s||r.title,i.setAttribute("title",s||r.title),i.classList.add("h5p-interactive-book-navigation-section-title");const n=document.createElement("div");n.classList.add("h5p-interactive-book-navigation-section-icon"),n.classList.add("icon-chapter-blank"),this.parent.chapters[t].sections[e].isTask&&n.classList.add("h5p-interactive-book-navigation-section-task");const o=document.createElement("button");o.classList.add("section-button"),o.setAttribute("tabindex","-1"),o.onclick=e=>{const s={h5pbookid:this.parent.contentId,chapter:this.chapters[t].id,section:r.id};null!==a&&(s.headerNumber=a),this.parent.trigger("newChapter",s),this.isOpenOnMobile()&&this.parent.trigger("toggleMenu"),e.preventDefault()},o.appendChild(n),o.appendChild(i);const c=document.createElement("li");return c.classList.add("h5p-interactive-book-navigation-section"),c.classList.add("h5p-interactive-book-navigation-section-"+e),c.appendChild(o),c}getChapterNodes(){return this.chapters.map(((t,e)=>this.getNodesFromChapter(t,e)))}isOpenOnMobile(){return this.parent.isMenuOpen()&&this.parent.isSmallSurface()}addTransformListener(){this.container.addEventListener("transitionend",(t=>{"flex-basis"===t.propertyName&&this.parent.trigger("resize")}))}}const a=e;class r extends H5P.EventDispatcher{constructor(t,e,s,a,r){super(),this.id=t,this.parent=s,this.params=a||{},this.preventScrollToTop=a.preventScrollToTop,this.params.l10n=a.l10n,this.params.a11y=Object.assign({progress:"Page @page of @total",menu:"Toggle navigation menu"},this.params.a11y||{}),this.totalChapters=e,this.arrows=this.addArrows(),this.progressBar=this.createProgressBar(),this.progressIndicator=this.createProgressIndicator(),this.chapterTitle=this.createChapterTitle(),this.menuToggleButton=this.createMenuToggleButton();const i=document.createElement("div");i.classList.add("h5p-interactive-book-status"),this.params.displayToTopButton&&i.appendChild(this.createToTopButton()),this.params.displayFullScreenButton&&H5P.fullscreenSupported&&i.appendChild(this.createFullScreenButton()),i.appendChild(this.arrows.buttonWrapperNext),i.appendChild(this.arrows.buttonWrapperPrevious),this.params.displayMenuToggleButton&&i.appendChild(this.menuToggleButton),i.appendChild(this.progressIndicator.wrapper),i.appendChild(this.chapterTitle.wrapper),this.wrapper=document.createElement("div"),this.wrapper.classList.add(r),this.wrapper.setAttribute("tabindex","-1"),this.wrapper.appendChild(this.progressBar.wrapper),this.wrapper.appendChild(i),this.on("updateStatusBar",this.updateStatusBar),this.on("seqChapter",(t=>{const e={h5pbookid:this.parent.contentId};t.data.toTop&&(e.section="top"),"next"===t.data.direction?this.parent.activeChapter+1<this.parent.chapters.length?e.chapter=`h5p-interactive-book-chapter-${this.parent.chapters[this.parent.activeChapter+1].instance.subContentId}`:this.parent.hasSummary()&&this.parent.activeChapter+1===this.parent.chapters.length&&this.parent.trigger("viewSummary",e):"prev"===t.data.direction&&this.parent.activeChapter>0&&(e.chapter=`h5p-interactive-book-chapter-${this.parent.chapters[this.parent.activeChapter-1].instance.subContentId}`),this.preventScrollToTop&&(e.preventScrollToTop=!0),e.chapter&&this.parent.trigger("newChapter",e)}))}updateProgressBar(t){const e=t/this.totalChapters*100+"%";this.progressBar.progress.style.width=e;const s=this.params.a11y.progress.replace("@page",t).replace("@total",this.totalChapters);this.progressBar.progress.title=s}updateA11yProgress(t){this.progressIndicator.hiddenButRead.innerHTML=this.params.a11y.progress.replace("@page",t).replace("@total",this.totalChapters)}updateStatusBar(){const t=this.parent.getActiveChapter()+1,e=this.parent.chapters[t-1].title;this.progressIndicator.current.innerHTML=t,this.updateA11yProgress(t),this.updateProgressBar(t),this.chapterTitle.text.innerHTML=e,this.chapterTitle.text.setAttribute("title",e),this.parent.activeChapter<=0?this.setButtonStatus("Previous",!0):this.setButtonStatus("Previous",!1),this.parent.activeChapter+1>=this.totalChapters?this.setButtonStatus("Next",!0):this.setButtonStatus("Next",!1)}addArrows(){const t={};return t.buttonPrevious=document.createElement("div"),t.buttonPrevious.classList.add("navigation-button","icon-previous"),t.buttonPrevious.setAttribute("title",this.params.l10n.previousPage),t.buttonWrapperPrevious=document.createElement("button"),t.buttonWrapperPrevious.classList.add("h5p-interactive-book-status-arrow","h5p-interactive-book-status-button","previous"),t.buttonWrapperPrevious.setAttribute("aria-label",this.params.l10n.previousPage),t.buttonWrapperPrevious.onclick=()=>{this.trigger("seqChapter",{direction:"prev",toTop:!0})},t.buttonWrapperPrevious.appendChild(t.buttonPrevious),t.buttonNext=document.createElement("div"),t.buttonNext.classList.add("navigation-button","icon-next"),t.buttonNext.setAttribute("title",this.params.l10n.nextPage),t.buttonWrapperNext=document.createElement("button"),t.buttonWrapperNext.classList.add("h5p-interactive-book-status-arrow","h5p-interactive-book-status-button","next"),t.buttonWrapperNext.setAttribute("aria-label",this.params.l10n.nextPage),t.buttonWrapperNext.onclick=()=>{this.trigger("seqChapter",{direction:"next",toTop:!0})},t.buttonWrapperNext.appendChild(t.buttonNext),t}createMenuToggleButton(){const t=document.createElement("a");t.classList.add("icon-menu");const e=document.createElement("button");return e.classList.add("h5p-interactive-book-status-menu"),e.classList.add("h5p-interactive-book-status-button"),e.setAttribute("aria-label",this.params.a11y.menu),e.setAttribute("aria-expanded","false"),e.setAttribute("aria-controls","h5p-interactive-book-navigation-menu"),e.onclick=()=>{this.parent.trigger("toggleMenu")},e.appendChild(t),e}isMenuOpen(){return this.menuToggleButton.classList.contains("h5p-interactive-book-status-menu-active")}createProgressBar(){const t=document.createElement("div");t.classList.add("h5p-interactive-book-status-progressbar-front"),t.setAttribute("tabindex","-1");const e=document.createElement("div");return e.classList.add("h5p-interactive-book-status-progressbar-back"),e.appendChild(t),{wrapper:e,progress:t}}createChapterTitle(){const t=document.createElement("h1");t.classList.add("title");const e=document.createElement("div");return e.classList.add("h5p-interactive-book-status-chapter"),e.appendChild(t),{wrapper:e,text:t}}createToTopButton(){const t=document.createElement("div");t.classList.add("icon-up"),t.classList.add("navigation-button");const e=document.createElement("button");return e.classList.add("h5p-interactive-book-status-to-top"),e.classList.add("h5p-interactive-book-status-button"),e.classList.add("h5p-interactive-book-status-arrow"),e.setAttribute("aria-label",this.params.l10n.navigateToTop),e.addEventListener("click",(()=>{this.parent.trigger("scrollToTop"),document.querySelector(".h5p-interactive-book-status-menu").focus()})),e.appendChild(t),e}setVisibility(t){t?this.wrapper.classList.add("footer-hidden"):this.wrapper.classList.remove("footer-hidden")}createProgressIndicator(){const t=document.createElement("span");t.classList.add("h5p-interactive-book-status-progress-number"),t.setAttribute("aria-hidden","true");const e=document.createElement("span");e.classList.add("h5p-interactive-book-status-progress-divider"),e.innerHTML=" / ",e.setAttribute("aria-hidden","true");const s=document.createElement("span");s.classList.add("h5p-interactive-book-status-progress-number"),s.innerHTML=this.totalChapters,s.setAttribute("aria-hidden","true");const a=document.createElement("p");a.classList.add("hidden-but-read");const r=document.createElement("p");r.classList.add("h5p-interactive-book-status-progress"),r.appendChild(t),r.appendChild(e),r.appendChild(s),r.appendChild(a);const i=document.createElement("div");return i.classList.add("h5p-interactive-book-status-progress-wrapper"),i.appendChild(r),{wrapper:i,current:t,total:s,divider:e,progressText:r,hiddenButRead:a}}setButtonStatus(t,e){e?(this.arrows["buttonWrapper"+t].setAttribute("disabled","disabled"),this.arrows["button"+t].classList.add("disabled")):(this.arrows["buttonWrapper"+t].removeAttribute("disabled"),this.arrows["button"+t].classList.remove("disabled"))}createFullScreenButton(){const t=()=>{!0===H5P.isFullscreen?H5P.exitFullScreen():H5P.fullScreen(this.parent.mainWrapper,this.parent)},e=document.createElement("button");return e.classList.add("h5p-interactive-book-status-fullscreen"),e.classList.add("h5p-interactive-book-status-button"),e.classList.add("h5p-interactive-book-enter-fullscreen"),e.setAttribute("title",this.params.l10n.fullscreen),e.setAttribute("aria-label",this.params.l10n.fullscreen),e.addEventListener("click",t),e.addEventListener("keyPress",(e=>{13!==e.which&&32!==e.which||(t(),e.preventDefault())})),this.parent.on("enterFullScreen",(()=>{this.parent.isFullscreen=!0,e.classList.remove("h5p-interactive-book-enter-fullscreen"),e.classList.add("h5p-interactive-book-exit-fullscreen"),e.setAttribute("title",this.params.l10n.exitFullscreen),e.setAttribute("aria-label",this.params.l10n.exitFullScreen),this.parent.pageContent.updateFooter()})),this.parent.on("exitFullScreen",(()=>{this.parent.isFullscreen=!1,e.classList.remove("h5p-interactive-book-exit-fullscreen"),e.classList.add("h5p-interactive-book-enter-fullscreen"),e.setAttribute("title",this.params.l10n.fullscreen),e.setAttribute("aria-label",this.params.l10n.fullscreen),this.parent.pageContent.updateFooter()})),e}}const i=r;class n extends H5P.EventDispatcher{constructor(t,e,s,a,r){super(),this.parent=r,this.params=t,this.contentId=a,this.container=this.createContainer(),t.coverMedium?(this.visuals=this.createVisualsElement(t.coverMedium),this.visuals&&this.container.appendChild(this.visuals)):this.container.classList.add("h5p-cover-nographics"),this.container.appendChild(this.createTitleElement(e)),t.coverDescription&&this.container.appendChild(this.createDescriptionElement(t.coverDescription)),this.container.appendChild(this.createReadButton(s))}createContainer(){const t=document.createElement("div");return t.classList.add("h5p-interactive-book-cover"),t}createVisualsElement(t){if(!t||!t.params)return null;const e=document.createElement("div");return e.classList.add("h5p-interactive-book-cover-graphics"),e}initMedia(){if(!this.visuals||!this.params.coverMedium)return;const t=this.params.coverMedium;"H5P.Video"===(t.library||"").split(" ")[0]&&(t.params.visuals.fit=!1);const e=H5P.newRunnable(t,this.contentId,H5P.jQuery(this.visuals),!1,{metadata:t.medatata});if(this.bubbleUp(e,"resize",this.parent),this.bubbleDown(this.parent,"resize",[e]),"H5P.Image"===(t.library||"").split(" ")[0]){const t=this.visuals.querySelector("img")||this.visuals.querySelector(".h5p-placeholder");t.style.height="auto",t.style.width="auto"}this.visuals.appendChild(this.createCoverBar())}bubbleUp(t,e,s){t.on(e,(t=>{s.bubblingUpwards=!0,s.trigger(e,t),s.bubblingUpwards=!1}))}bubbleDown(t,e,s){t.on(e,(a=>{t.bubblingUpwards||s.forEach((t=>{t.trigger(e,a)}))}))}createImage(t,e,s){const a=document.createElement("img");return a.classList.add("h5p-interactive-book-cover-image"),a.src=H5P.getPath(t,e),a.setAttribute("draggable","false"),s&&(a.alt=s),a}createCoverBar(){const t=document.createElement("div");return t.classList.add("h5p-interactive-book-cover-bar"),t}createTitleElement(t){const e=document.createElement("p");e.innerHTML=t;const s=document.createElement("div");return s.classList.add("h5p-interactive-book-cover-title"),s.appendChild(e),s}createDescriptionElement(t){if(!t)return null;const e=document.createElement("div");return e.classList.add("h5p-interactive-book-cover-description"),e.innerHTML=t,e}createReadButton(t){const e=document.createElement("button");e.innerHTML=t,e.onclick=()=>{this.removeCover(!0)};const s=document.createElement("div");return s.classList.add("h5p-interactive-book-cover-readbutton"),s.appendChild(e),s}removeCover(t=!1){this.container.parentElement&&(this.container.parentElement.classList.remove("covered"),this.container.parentElement.removeChild(this.container)),this.hidden=!0,this.parent.trigger("coverRemoved",t)}}const o=n;s(683);var c=s(308),h=s.n(c);class l{static setBase(t){t&&(l.colorBase=h()(t),l.colorText=[l.DEFAULT_COLOR_BG,l.computeContrastColor(l.colorBase),l.computeContrastColor(l.colorBase,l.DEFAULT_COLOR_BG)].map((t=>({color:t,contrast:l.colorBase.contrast(t)}))).reduce(((t,e)=>e.contrast>t.contrast?e:t),{contrast:0}).color)}static getColor(t,e={}){if("string"==typeof e.opacity&&/^([0-9]|[1-8][0-9]|9[0-9]|100)(\.\d+)?\s?%$/.test(e.opacity)&&(e.opacity=parseInt(e.opacity)/100),"number"!=typeof e.opacity||e.opacity<0||e.opacity>1)return t;const s=h()("#ffffff").rgb().array();return h().rgb(t.rgb().array().map(((t,a)=>e.opacity*t+(1-e.opacity)*s[a])))}static isBaseColor(t){return h()(t).hex()===l.colorBase.hex()}static computeContrastColor(t,e){const s=(e=e||t).luminosity();let a;for(let r=0;r<=1;r+=.05){a=h().rgb(t.rgb().array().map((t=>t*(s>.5?1-r:1+r))));if(a.contrast(e)>=l.MINIMUM_ACCEPTABLE_CONTRAST)break}return a}static getContentTypeCSS(t){return l.COLOR_OVERRIDES[t]?l.COLOR_OVERRIDES[t].getCSS():""}static getCSS(){return`:root{\n      --color-base: ${l.colorBase};\n      --color-base-5: ${l.getColor(l.colorBase,{opacity:.05})};\n      --color-base-10: ${l.getColor(l.colorBase,{opacity:.1})};\n      --color-base-20: ${l.getColor(l.colorBase,{opacity:.2})};\n      --color-base-75: ${l.getColor(l.colorBase,{opacity:.75})};\n      --color-base-80: ${l.getColor(l.colorBase,{opacity:.8})};\n      --color-base-85: ${l.getColor(l.colorBase,{opacity:.85})};\n      --color-base-90: ${l.getColor(l.colorBase,{opacity:.9})};\n      --color-base-95: ${l.getColor(l.colorBase,{opacity:.95})};\n      --color-text: ${l.colorText};\n      --color-contrast: ${l.computeContrastColor(l.colorBase,l.DEFAULT_COLOR_BG)};\n    }`}}l.DEFAULT_COLOR_BASE=h()("#1768c4"),l.DEFAULT_COLOR_BG=h()("#ffffff"),l.MINIMUM_ACCEPTABLE_CONTRAST=4.5,l.colorBase=l.DEFAULT_COLOR_BASE,l.colorText=l.DEFAULT_COLOR_BG;class p extends H5P.EventDispatcher{constructor(t,e,s){super(),this.parent=e,this.behaviour=t.behaviour,this.l10n=t.l10n,this.chapters=s||[],this.subContentId="summary",this.wrapper=null,this.summaryMenuButton=this.createSummaryButton(),this.filterActionAll="all",this.filterActionUnanswered="unanswered",this.bookCompleted=!1,this.tempState=JSON.stringify(this.parent.previousState&&this.parent.previousState.chapters?this.parent.previousState.chapters:this.getChapterStats()),e.on("bookCompleted",(t=>this.setBookComplete(t.data.completed))),e.on("toggleMenu",(()=>{const t=document.querySelector(".h5p-interactive-book-summary-footer");t&&this.bookCompleted&&(this.parent.isMenuOpen()?t.classList.add("menu-open"):t.classList.remove("menu-open"))}))}setBookComplete(t){let e=this.parent.mainWrapper?this.parent.mainWrapper[0].querySelector(".h5p-interactive-book-summary-footer"):null;!e&&this.parent.isSmallSurface()&&(e=document.createElement("div"),e.classList.add("h5p-interactive-book-summary-footer"),e.appendChild(this.createSummaryButton()),this.parent.mainWrapper.append(e)),e&&t&&setTimeout((()=>e.classList.add("show-footer")),0),this.bookCompleted=t,Array.from(document.querySelectorAll(".h5p-interactive-book-summary-menu-button")).forEach((e=>e.setAttribute("data-book-completed",t.toString())))}setChapters(t){this.chapters=Array.isArray(t)?t:[]}setSummaryMenuButtonDisabled(t=!0){this.summaryMenuButton.disabled=t}setFilter(t){const e=this.wrapper.querySelector(".h5p-interactive-book-summary-overview-list"),s=Array.from(e.querySelectorAll(".h5p-interactive-book-summary-overview-section"));s.forEach((t=>{t.classList.remove("h5p-interactive-book-summary-top-section"),t.classList.remove("h5p-interactive-book-summary-bottom-section")}));const a=e.querySelector(".h5p-interactive-book-summary-overview-list-empty");if(a.style.display="none",t===this.filterActionUnanswered){e.classList.add("h5p-interactive-book-summary-overview-list-only-unanswered");const t=s.filter((t=>!t.classList.contains("h5p-interactive-book-summary-no-interactions")));t.length?(t[0].classList.add("h5p-interactive-book-summary-top-section"),t[t.length-1].classList.add("h5p-interactive-book-summary-bottom-section")):a.style.display="block"}else t===this.filterActionAll&&e.classList.remove("h5p-interactive-book-summary-overview-list-only-unanswered");setTimeout((()=>this.trigger("resize")),1)}createSummaryButton(){const t=document.createElement("button");t.classList.add("h5p-interactive-book-summary-menu-button"),t.onclick=()=>{const t={h5pbookid:this.parent.contentId,chapter:"h5p-interactive-book-chapter-summary",section:"top"};this.parent.trigger("newChapter",t),this.parent.isMenuOpen()&&this.parent.isSmallSurface()&&this.parent.trigger("toggleMenu")};const e=document.createElement("span");e.classList.add("h5p-interactive-book-summary-icon"),e.classList.add("icon-paper"),e.setAttribute("aria-hidden","true");const s=document.createElement("span");s.classList.add("h5p-interactive-book-summary-text"),s.innerHTML=this.l10n.summaryAndSubmit;const a=document.createElement("span");return a.classList.add("h5p-interactive-book-summary-menu-button-arrow"),a.classList.add("icon-up"),a.setAttribute("aria-hidden","true"),t.appendChild(e),t.appendChild(s),t.appendChild(a),t}createCircle(t){const e=l.computeContrastColor(l.colorBase,l.DEFAULT_COLOR_BG),s=document.createElement("div");return s.classList.add("h5p-interactive-book-summary-progress-circle"),s.setAttribute("data-value",t),s.setAttribute("data-start-angle",-Math.PI/3),s.setAttribute("data-thickness",13),s.setAttribute("data-empty-fill",`rgba(${e.rgb().array().join(", ")}, .1)`),s.setAttribute("data-fill",JSON.stringify({color:e.hex()})),s}createProgress(t,e,s,a,r=!1,i,n){const o=document.createElement("div"),c=document.createElement("h3");c.innerHTML=t;const h=100*s/a;void 0===i&&(i=s),void 0===n&&(n=a);const l=document.createElement("p");if(l.classList.add("h5p-interactive-book-summary-progressbox-bigtext"),l.innerHTML=Math.round(h)+"%",r){const t=document.createElement("span");t.classList.add("absolute-value"),t.innerHTML=s;const e=document.createElement("span");e.classList.add("separator"),e.innerHTML="/";const r=document.createElement("span");r.classList.add("absolute-value"),r.innerHTML=a,l.innerHTML="",l.appendChild(t),l.appendChild(e),l.appendChild(r)}const p=document.createElement("span");p.classList.add("h5p-interactive-book-summary-progressbox-smalltext"),p.innerHTML=e.replace("@count",i).replace("@total",n),o.appendChild(c),o.appendChild(l),o.appendChild(p);const d=document.createElement("div");return d.appendChild(o),d.appendChild(this.createCircle(s/a)),d}addScoreProgress(){let t=0,e=0;for(const s of this.chapters)t+=s.maxTasks,e+=s.tasksLeft;const s=this.createProgress(this.l10n.totalScoreLabel,this.l10n.interactionsProgressSubtext,this.parent.getScore(),this.parent.getMaxScore(),!0,Math.max(t-e,0),t);s.classList.add("h5p-interactive-book-summary-progress-container"),s.classList.add("h5p-interactive-book-summary-score-progress");const a=s.querySelector(".h5p-interactive-book-summary-progress-circle");return a.setAttribute("data-empty-fill","rgb(198, 220, 212)"),a.setAttribute("data-fill",JSON.stringify({color:"#0e7c57"})),s}addBookProgress(){const t=this.createProgress(this.l10n.bookProgress,this.l10n.bookProgressSubtext,this.chapters.filter((t=>t.completed)).length,this.chapters.length);return t.classList.add("h5p-interactive-book-summary-progress-container"),t.classList.add("h5p-interactive-book-summary-book-progress"),t}addInteractionsProgress(){let t=0,e=0;for(const s of this.chapters)t+=s.maxTasks,e+=s.tasksLeft;const s=this.createProgress(this.l10n.interactionsProgress,this.l10n.interactionsProgressSubtext,Math.max(t-e,0),t);return s.classList.add("h5p-interactive-book-summary-progress-container"),s.classList.add("h5p-interactive-book-summary-interactions-progress"),s}addProgressIndicators(){if(!this.behaviour.progressIndicators)return;const t=document.createElement("div");t.classList.add("h5p-interactive-box-summary-progress"),t.appendChild(this.addScoreProgress()),t.appendChild(this.addBookProgress()),t.appendChild(this.addInteractionsProgress()),setTimeout((()=>H5P.jQuery(".h5p-interactive-book-summary-progress-circle").circleProgress()),100),this.wrapper.appendChild(t)}addActionButtons(){const t=document.createElement("div");if(t.classList.add("h5p-interactive-book-summary-buttons"),this.checkTheAnswerIsUpdated(),this.parent.isSubmitButtonEnabled&&this.parent.isAnswerUpdated){const e=this.addButton("icon-paper-pencil",this.l10n.submitReport);e.classList.add("h5p-interactive-book-summary-submit"),e.onclick=()=>{this.trigger("submitted"),this.parent.triggerXAPIScored(this.parent.getScore(),this.parent.getMaxScore(),"completed"),t.classList.add("submitted");t.querySelector(".answers-submitted").focus(),this.tempState=JSON.stringify(this.getChapterStats()),this.parent.isAnswerUpdated=!1},t.appendChild(e)}this.behaviour.enableRetry&&t.appendChild(this.createRestartButton()),t.appendChild(this.createSubmittedConfirmation()),this.wrapper.appendChild(t)}createRestartButton(){const t=this.addButton("icon-restart",this.l10n.restartLabel);return t.classList.add("h5p-interactive-book-summary-restart"),t.onclick=()=>this.parent.resetTask(),t}createSubmittedConfirmation(){const t=document.createElement("div");t.classList.add("h5p-interactive-book-summary-submitted");const e=document.createElement("span");e.classList.add("icon-chapter-done"),e.classList.add("icon-check-mark"),t.appendChild(e);const s=document.createElement("p");return s.innerHTML=this.l10n.yourAnswersAreSubmittedForReview,s.tabIndex=-1,s.classList.add("answers-submitted"),t.appendChild(s),this.behaviour.enableRetry&&t.appendChild(this.createRestartButton()),t}addButton(t,e){const s=document.createElement("button");s.type="button",s.classList.add("h5p-interactive-book-summary-button"),s.innerHTML=e;const a=document.createElement("span");return a.classList.add(t),a.setAttribute("aria-hidden","true"),s.appendChild(a),s}createSectionList(t,e){let s=[],a=!1;for(const r of t){const t=document.createElement("li");if(t.classList.add("h5p-interactive-book-summary-overview-section-details"),this.behaviour.progressIndicators){const e=document.createElement("span");e.classList.add("h5p-interactive-book-summary-section-icon"),e.classList.add(r.taskDone?"icon-chapter-done":"icon-chapter-blank"),t.appendChild(e)}const i=document.createElement("button");i.type="button",i.classList.add("h5p-interactive-book-summary-section-title"),i.onclick=()=>{const t={h5pbookid:this.parent.contentId,chapter:`h5p-interactive-book-chapter-${e}`,section:`h5p-interactive-book-section-${r.instance.subContentId}`};this.parent.trigger("newChapter",t)};const n=r.instance.contentData&&r.instance.contentData.metadata&&r.instance.contentData.metadata.title,o=r.content&&r.content.metadata&&r.content.metadata.title;i.innerHTML=n||(o||"Untitled");const c=document.createElement("div");c.classList.add("h5p-interactive-book-summary-section-score"),c.innerHTML="-","function"==typeof r.instance.getScore&&(c.innerHTML=this.l10n.scoreText.replace("@score",r.instance.getScore()).replace("@maxscore",r.instance.getMaxScore())),r.taskDone?t.classList.add("h5p-interactive-book-summary-overview-section-details-task-done"):a=!0,t.appendChild(i),t.appendChild(c),s.push(t)}if(s.length){const t=document.createElement("div");t.classList.add("h5p-interactive-book-summary-overview-section-score-header");const e=document.createElement("div");e.innerHTML=this.l10n.score,t.appendChild(e),s.unshift(t)}return{hasUnansweredInteractions:a,sectionElements:s}}createChapterOverview(t){const e=document.createElement("li");e.classList.add("h5p-interactive-book-summary-overview-section");const s=document.createElement("h4");s.onclick=()=>{const e={h5pbookid:this.parent.contentId,chapter:`h5p-interactive-book-chapter-${t.instance.subContentId}`,section:"top"};this.parent.trigger("newChapter",e)};const a=document.createElement("span");if(a.innerHTML=t.title,s.appendChild(a),this.behaviour.progressIndicators){const e=document.createElement("span"),a=this.parent.getChapterStatus(t);e.classList.add(`icon-chapter-${a.toLowerCase()}`),s.appendChild(e)}e.appendChild(s);let{sectionElements:r,hasUnansweredInteractions:i}=this.createSectionList(t.sections.filter((t=>t.isTask)),t.instance.subContentId);!1===i&&e.classList.add("h5p-interactive-book-summary-no-interactions");const n=document.createElement("div");n.classList.add("h5p-interactive-book-summary-chapter-subheader"),t.maxTasks?n.innerHTML=this.l10n.leftOutOfTotalCompleted.replace("@left",Math.max(t.maxTasks-t.tasksLeft,0)).replace("@max",t.maxTasks):n.innerHTML=this.l10n.noInteractions,e.appendChild(n);const o=document.createElement("ul");return r.length&&r.map((t=>o.appendChild(t))),e.appendChild(o),e}createFilterDropdown(){const t=(t,r)=>{const i=document.createElement("li");i.role="menuitem";const n=document.createElement("button");return n.textContent=t,n.type="button",n.onclick=t=>{this.setFilter(r),e.removeAttribute("active"),s.setAttribute("aria-expanded","false"),a.textContent=t.currentTarget.innerHTML},i.appendChild(n),i},e=document.createElement("div");e.classList.add("h5p-interactive-book-summary-dropdown");const s=document.createElement("button");s.setAttribute("aria-haspopup","true"),s.setAttribute("aria-expanded","false"),s.type="button",s.onclick=()=>{e.hasAttribute("active")?(e.removeAttribute("active"),s.setAttribute("aria-expanded","false")):(e.setAttribute("active",""),s.setAttribute("aria-expanded","true"),s.focus())};const a=document.createElement("span");a.textContent=this.l10n.allInteractions,s.appendChild(a);const r=document.createElement("span");r.classList.add("h5p-interactive-book-summary-dropdown-icon"),r.classList.add("icon-expanded"),r.setAttribute("aria-hidden","true"),s.appendChild(r);const i=document.createElement("ul");i.role="menu",i.classList.add("h5p-interactive-book-summary-dropdown-menu");const n=t(this.l10n.allInteractions,this.filterActionAll),o=t(this.l10n.unansweredInteractions,this.filterActionUnanswered);return i.appendChild(n),i.appendChild(o),e.appendChild(s),e.appendChild(i),e}addSummaryOverview(){const t=document.createElement("ul");t.classList.add("h5p-interactive-book-summary-list");const e=document.createElement("li");e.classList.add("h5p-interactive-book-summary-overview-header");const s=document.createElement("h3");s.innerHTML=this.l10n.summaryHeader,e.appendChild(s),e.appendChild(this.createFilterDropdown()),t.appendChild(e);const a=document.createElement("ol");a.classList.add("h5p-interactive-book-summary-overview-list");for(const t of this.chapters)a.appendChild(this.createChapterOverview(t));const r=document.createElement("p");r.classList.add("h5p-interactive-book-summary-overview-list-empty"),r.classList.add("h5p-interactive-book-summary-top-section"),r.classList.add("h5p-interactive-book-summary-bottom-section"),r.innerHTML=this.l10n.noInteractions,a.appendChild(r),t.appendChild(a),this.wrapper.appendChild(t)}addScoreBar(){const t=document.createElement("div");t.classList.add("h5p-interactive-book-summary-score-bar");const e=H5P.JoubelUI.createScoreBar(this.parent.getMaxScore());e.setScore(this.parent.getScore()),e.appendTo(t),this.wrapper.appendChild(t)}noChapterInteractions(){const t=document.createElement("div");t.classList.add("h5p-interactive-book-summary-no-chapter-interactions");const e=document.createElement("p");e.innerHTML=this.l10n.noChapterInteractionBoldText;const s=document.createElement("p");s.classList.add("h5p-interactive-book-summary-no-initialized-chapters"),s.innerHTML=this.l10n.noChapterInteractionText,t.appendChild(e),t.appendChild(s),this.wrapper.appendChild(t)}addSummaryPage(t){if(this.wrapper=document.createElement("div"),this.wrapper.classList.add("h5p-interactive-book-summary-page"),this.chapters.filter((t=>t.isInitialized)).length>0||this.chapters.some((t=>t.sections.some((t=>t.taskDone))))){if(this.parent.pageContent&&this.parent.chapters[this.parent.getChapterId(this.parent.pageContent.targetPage.chapter)].isSummary||0===this.parent.chapters.length){if(this.parent.chapters.length>0)for(const t in this.chapters)this.parent.pageContent.initializeChapter(t);this.addProgressIndicators(),this.addActionButtons(),this.addSummaryOverview(),this.addScoreBar()}}else this.noChapterInteractions();return Array.from(document.querySelectorAll(".h5p-interactive-book-summary-footer")).forEach((t=>t.remove())),t.append(this.wrapper),t}checkTheAnswerIsUpdated(){const t=this.getChapterStats(),e=JSON.parse(this.tempState);for(const s of t.keys()){let a=e[s].state.instances,r=t[s].state.instances,i=t[s].sections;for(const t of a.keys())null!==a[t]&&void 0!==a[t]&&(Array.isArray(a[t])&&!this.compareStates(a[t],r[t])&&i[t].taskDone&&(this.parent.isAnswerUpdated=!0),"object"==typeof a[t]&&!Array.isArray(a[t])&&JSON.stringify(a[t])!==JSON.stringify(r[t])&&i[t].taskDone&&(this.parent.isAnswerUpdated=!0));if(this.parent.isAnswerUpdated)break}}getChapterStats(){return this.chapters.filter((t=>!t.isSummary)).map((t=>({sections:t.sections.map((t=>({taskDone:t.taskDone}))),state:t.instance.getCurrentState()})))}compareStates(t,e){return Array.isArray(t)&&Array.isArray(e)&&t.length===e.length&&t.every(((t,s)=>t===e[s]||""===e[s]))}}const d=p;class u extends H5P.EventDispatcher{constructor(t,e,s,a,r){if(super(),this.parent=a,this.behaviour=t.behaviour,this.params=r,this.targetPage={},this.targetPage.redirectFromComponent=!1,this.columnNodes=[],this.chapters=[],this.l10n=t.l10n,this.sidebarIsOpen=!1,this.previousState=s.previousState&&Object.keys(s.previousState).length>0?s.previousState:null,a.hasValidChapters()){const a=this.createColumns(t,e,s);this.preloadChapter(a)}this.content=this.createPageContent(),this.container=document.createElement("div"),this.container.classList.add("h5p-interactive-book-main","h5p-interactive-book-navigation-hidden"),this.container.appendChild(this.content)}getChapters(t=!0){return this.chapters.filter((e=>!e.isSummary||e.isSummary&&!!t))}resetChapters(){this.behaviour.progressIndicators&&!this.behaviour.progressAuto&&this.columnNodes.forEach((t=>{Array.from(t.querySelectorAll(".h5p-interactive-book-status-progress-marker > input[type=checkbox]")).forEach((t=>t.checked=!1))}))}createPageContent(){const t=document.createElement("div");return t.classList.add("h5p-interactive-book-content"),this.columnNodes.forEach((e=>{t.appendChild(e)})),this.setChapterOrder(this.parent.getActiveChapter()),t}setChapterOrder(t){t<0||t>this.columnNodes.length-1||this.columnNodes.forEach(((e,s)=>{e.classList.remove("h5p-interactive-book-previous"),e.classList.remove("h5p-interactive-book-current"),e.classList.remove("h5p-interactive-book-next"),s===t-1||s===t&&e.classList.add("h5p-interactive-book-current")}))}createChapterReadCheckbox(t){const e=document.createElement("input");e.setAttribute("type","checkbox"),e.checked=t,e.onclick=t=>{this.parent.setChapterRead(void 0,t.target.checked)};const s=document.createElement("p");s.innerHTML=this.params.l10n.markAsFinished;const a=document.createElement("label");return a.classList.add("h5p-interactive-book-status-progress-marker"),a.appendChild(e),a.appendChild(s),a}injectSectionId(t,e){const s=e.getElementsByClassName("h5p-column-content");for(let e=0;e<t.length;e++)s[e].id=`h5p-interactive-book-section-${t[e].instance.subContentId}`}preloadChapter(t){this.initializeChapter(t),this.initializeChapter(t+1)}initializeChapter(t){if(t<0||t>this.chapters.length-1)return;const e=this.chapters[t];if(e.isSummary){const s=this.columnNodes[t];return e.isInitialized&&(e.instance.setChapters(this.getChapters(!1)),s.innerHTML=""),e.instance.addSummaryPage(H5P.jQuery(s)),void(e.isInitialized=!0)}if(!e.isInitialized){const s=this.columnNodes[t];e.instance.attach(H5P.jQuery(s)),this.injectSectionId(e.sections,s),this.behaviour.progressIndicators&&!this.behaviour.progressAuto&&s.appendChild(this.createChapterReadCheckbox(!!this.previousState?.chapters?.[t].completed)),e.isInitialized=!0}}createColumns(e,s,a){const r=(a=Object.assign({},a)).previousState&&Object.keys(a.previousState).length>0?a.previousState:null;let i=t.extractFragmentsFromURL(this.parent.validateFragments,this.parent.hashWindow);0===Object.keys(i).length&&a&&r&&r.urlFragments&&(i=r.urlFragments);const n=[];this.chapters=n;for(let t=0;t<e.chapters.length;t++){const a=document.createElement("div"),i={parent:self,previousState:r?r.chapters[t].state:{}},o=H5P.newRunnable(e.chapters[t],s,void 0,void 0,i);this.parent.bubbleUp(o,"resize",this.parent);const c=[],h=(t,e)=>{t.getInstances().forEach(((s,a)=>{if("H5P.Row"===s.libraryInfo.machineName){const t=e[a].content.params.columns;s.getInstances().forEach(((e,s)=>{h(e,t[s].content.params.content)}))}else{let r=e[a].content;"H5P.RowColumn"===t.libraryInfo.machineName&&(r=e[a]),c.push({content:r,instance:s,isTask:!1})}}))};h(o,e.chapters[t].params.content);const l={isInitialized:!1,instance:o,title:e.chapters[t].metadata.title,completed:!!r&&r.chapters[t].completed,tasksLeft:r?r.chapters[t].tasksLeft:0,isSummary:!1,sections:c};a.classList.add("h5p-interactive-book-chapter"),a.id=`h5p-interactive-book-chapter-${o.subContentId}`,l.maxTasks=0,l.tasksLeft=0,l.sections.forEach(((e,s)=>{H5P.Column.isTask(e.instance)&&(e.isTask=!0,l.maxTasks++,l.tasksLeft++,this.behaviour.progressIndicators&&(e.taskDone=!!r&&r.chapters[t].sections[s].taskDone,e.taskDone&&l.tasksLeft--))})),n.push(l),this.columnNodes.push(a)}if(this.parent.hasSummary(n)){const t=document.createElement("div"),s=new d({...e},this.parent,this.getChapters(!1));this.parent.bubbleUp(s,"resize",this.parent);const a={isInitialized:!1,instance:s,title:this.l10n.summaryHeader,isSummary:!0,sections:[]};t.classList.add("h5p-interactive-book-chapter"),t.id="h5p-interactive-book-chapter-summary",a.maxTasks=a.tasksLeft,n.push(a),this.columnNodes.push(t)}if(i.chapter&&i.h5pbookid==this.parent.contentId){const t=this.findChapterIndex(i.chapter);if(-1===t)return 0;if(this.parent.setActiveChapter(t),i.section){const t=i.headerNumber;window.requestAnimationFrame((()=>{this.redirectSection(i.section,t),this.parent.hasCover()&&this.parent.cover.removeCover()}))}return t}return 0}redirectSection(t,e=null){if("top"===t)this.parent.trigger("scrollToTop");else{let s=document.getElementById(t);if(s){if(null!==e){const t=s.querySelectorAll("h2, h3");t[e]&&(s=t[e])}const t=document.createElement("div");t.setAttribute("tabindex","-1"),s.parentNode.insertBefore(t,s),t.focus(),t.addEventListener("blur",(()=>{t.parentNode.removeChild(t)})),this.targetPage.redirectFromComponent=!1,setTimeout((()=>{s.scrollIntoView(!0)}),100)}}}findChapterIndex(t){let e=-1;return this.columnNodes.forEach(((s,a)=>{-1===e&&s.id===t&&(e=a)})),e}changeChapter(t,e){if(this.columnNodes[this.parent.getActiveChapter()].classList.contains("h5p-interactive-book-animate"))return;this.targetPage=e;const s=this.parent.getActiveChapter(),a=this.parent.getChapterId(this.targetPage.chapter),r=s!==a;if(t||this.parent.updateChapterProgress(s,r),this.preloadChapter(a),a<this.columnNodes.length){const e=this.columnNodes[s],i=this.columnNodes[a];if(r&&!t){this.parent.setActiveChapter(a);const t=s<a?"next":"previous";i.classList.add(`h5p-interactive-book-${t}`),i.classList.add("h5p-interactive-book-animate"),e.classList.add("h5p-interactive-book-animate"),setTimeout((()=>{"previous"===t?e.classList.add("h5p-interactive-book-next"):(e.classList.remove("h5p-interactive-book-current"),e.classList.add("h5p-interactive-book-previous")),i.classList.remove(`h5p-interactive-book-${t}`)}),1),setTimeout((()=>{e.classList.remove("h5p-interactive-book-next"),e.classList.remove("h5p-interactive-book-previous"),e.classList.remove("h5p-interactive-book-current"),i.classList.add("h5p-interactive-book-current"),i.classList.remove("h5p-interactive-book-animate"),e.classList.remove("h5p-interactive-book-animate"),this.redirectSection(this.targetPage.section,this.targetPage.headerNumber),this.parent.trigger("resize")}),250)}else this.parent.cover&&!this.parent.cover.hidden?this.parent.on("coverRemoved",(()=>{this.redirectSection(this.targetPage.section,this.targetPage.headerNumber)})):this.redirectSection(this.targetPage.section,this.targetPage.headerNumber);this.parent.sideBar.redirectHandler(a)}}updateFooter(){if(0===this.chapters.length)return;const t=this.parent.getActiveChapter(),e=this.columnNodes[t],s=this.parent.shouldFooterBeHidden(e.clientHeight),a=this.parent.statusBarFooter.wrapper.parentNode;s?a!==this.content&&this.content.appendChild(this.parent.statusBarFooter.wrapper):a!==this.parent.$wrapper&&this.parent.$wrapper.append(this.parent.statusBarFooter.wrapper)}toggleNavigationMenu(){const t=this;this.sidebarIsOpen?(H5P.Transition.onTransitionEnd(H5P.jQuery(this.container),(function(){t.container.classList.add("h5p-interactive-book-navigation-hidden")}),500),this.container.classList.remove("h5p-interactive-book-navigation-open")):(this.container.classList.remove("h5p-interactive-book-navigation-hidden"),setTimeout((function(){t.container.classList.add("h5p-interactive-book-navigation-open")}),1)),this.sidebarIsOpen=!this.sidebarIsOpen}}const m=u;class g extends H5P.EventDispatcher{constructor(e,s,r={}){super();const n=this;if(this.contentId=s,this.previousState=r.previousState,e&&e.behaviour&&e.behaviour.baseColor&&!l.isBaseColor(e.behaviour.baseColor)){l.setBase(e.behaviour.baseColor);const t=document.createElement("style");t.styleSheet?t.styleSheet.cssText=l.getCSS():t.appendChild(document.createTextNode(l.getCSS())),document.head.appendChild(t)}this.activeChapter=0,this.newHandler={},this.completed=!1,this.params=g.sanitizeConfig(e),this.l10n=this.params.l10n,this.params.behaviour=this.params.behaviour||{},this.mainWrapper=null,this.currentRatio=null,this.smallSurface="h5p-interactive-book-small",this.mediumSurface="h5p-interactive-book-medium",this.largeSurface="h5p-interactive-book-large",this.chapters=[],this.isSubmitButtonEnabled=!1,this.isAnswerUpdated=!0,void 0!==r.isScoringEnabled||void 0!==r.isReportingEnabled?this.isSubmitButtonEnabled=r.isScoringEnabled||r.isReportingEnabled:void 0!==H5PIntegration.reportingIsEnabled&&(this.isSubmitButtonEnabled=H5PIntegration.reportingIsEnabled),this.params.behaviour.enableSolutionsButton=!1,this.params.behaviour.enableRetry=this.params.behaviour.enableRetry??!0,this.getAnswerGiven=()=>this.chapters.reduce(((t,e)=>"function"==typeof e.instance.getAnswerGiven?t&&e.instance.getAnswerGiven():t),!0),this.getScore=()=>this.chapters.length>0?this.chapters.reduce(((t,e)=>"function"==typeof e.instance.getScore?t+e.instance.getScore():t),0):this.previousState&&this.previousState.score||0,this.getMaxScore=()=>this.chapters.length>0?this.chapters.reduce(((t,e)=>"function"==typeof e.instance.getMaxScore?t+e.instance.getMaxScore():t),0):this.previousState&&this.previousState.maxScore||0,this.showSolutions=()=>{this.chapters.forEach((t=>{"function"==typeof t.instance.toggleReadSpeaker&&t.instance.toggleReadSpeaker(!0),"function"==typeof t.instance.showSolutions&&t.instance.showSolutions(),"function"==typeof t.instance.toggleReadSpeaker&&t.instance.toggleReadSpeaker(!1)}))},this.resetTask=()=>{if(this.hasValidChapters()){this.chapters.forEach(((t,e)=>{"function"==typeof t.instance.resetTask&&t.instance.resetTask(),t.completed=!1,t.tasksLeft=t.maxTasks,t.sections.forEach((t=>t.taskDone=!1)),this.setChapterRead(e,!1)}));for(const t in this.previousState)delete this.previousState[t];this.hashWindow.location.hash="";const t=this.getActiveChapter();this.redirectChapter({h5pbookid:this.contentId,chapter:this.pageContent.columnNodes[0].id,section:"top"}),this.chapters[t].completed=!1,this.hasCover()&&this.displayCover(this.mainWrapper),this.isAnswerUpdated=!1,this.setActivityStarted(!0),this.pageContent.resetChapters(),this.sideBar.resetIndicators()}},this.getXAPIData=()=>{const t=this.createXAPIEventTemplate("answered");return this.addQuestionToXAPI(t),t.setScoredResult(this.getScore(),this.getMaxScore(),this,!0,this.getScore()===this.getMaxScore()),{statement:t.data.statement,children:this.getXAPIDataFromChildren(this.chapters.map((t=>t.instance)))}},this.getXAPIDataFromChildren=t=>t.map((t=>{if("function"==typeof t.getXAPIData)return t.getXAPIData()})).filter((t=>!!t)),this.addQuestionToXAPI=t=>{const e=t.getVerifiedStatementValue(["object","definition"]);Object.assign(e,this.getxAPIDefinition())},this.getxAPIDefinition=()=>({interactionType:"compound",type:"http://adlnet.gov/expapi/activities/cmi.interaction",description:{"en-US":""}}),this.getCurrentState=()=>{const e=this.chapters.filter((t=>!t.isSummary)).map((t=>({completed:t.completed||null,sections:t.sections.map((t=>({taskDone:t.taskDone||null}))),state:t.instance.getCurrentState()||null}))),s={urlFragments:!this.hashWindow.location.hash&&this.previousState?.urlFragments?this.previousState.urlFragments:t.extractFragmentsFromURL(this.validateFragments,this.hashWindow),chapters:e};return this.activeChapter>0&&(s.score=this.getScore(),s.maxScore=this.getMaxScore()),s},this.getContext=()=>this.cover&&!this.cover.hidden?{}:{type:"page",value:this.activeChapter+1},this.hasCover=()=>this.cover&&this.cover.container,this.hasSummary=(t=this.chapters)=>this.hasChaptersTasks(t)&&this.params.behaviour.displaySummary&&!0===this.params.behaviour.displaySummary,this.hasChaptersTasks=t=>t.filter((t=>t.sections.filter((t=>!0===t.isTask)).length>0)).length>0,this.hasValidChapters=()=>this.params.chapters.length>0,this.getActiveChapter=(t=!1)=>t?this.chapters[this.activeChapter]:this.activeChapter,this.setActiveChapter=t=>{t=parseInt(t),isNaN(t)||(this.activeChapter=t)},this.validateFragments=t=>void 0!==t.chapter&&String(t.h5pbookid)===String(n.contentId),this.bubbleUp=(t,e,s)=>{t.on(e,(function(t){s.bubblingUpwards=!0,s.trigger(e,t),s.bubblingUpwards=!1}))},this.isMenuOpen=()=>this.statusBarHeader.isMenuOpen(),this.isSmallSurface=()=>this.mainWrapper&&this.mainWrapper.hasClass(this.smallSurface),this.getRatio=()=>this.mainWrapper.width()/parseFloat(this.mainWrapper.css("font-size")),this.setWrapperClassFromRatio=(t,e=this.getRatio())=>{e!==this.currentRatio&&(this.breakpoints().forEach((t=>{t.shouldAdd(e)?this.mainWrapper.addClass(t.className):this.mainWrapper.removeClass(t.className)})),this.currentRatio=e)},this.resize=()=>{if(this.isBubblingUpToCore||this.isBubblingUpToCoreNo2)return;if(!this.pageContent||!this.hasValidChapters()||!this.mainWrapper)return;window.requestAnimationFrame((()=>{this.setWrapperClassFromRatio(this.mainWrapper)}));const t=this.getActiveChapter(),e=this.pageContent.columnNodes[t];null!==e.offsetParent&&(this.bubblingUpwards||this.pageContent.chapters[t].instance.trigger("resize"),this.pageContent.content.style.height===`${e.offsetHeight}px`||e.classList.contains("h5p-interactive-book-animate")||(this.pageContent.content.style.height=`${e.offsetHeight}px`,this.pageContent.updateFooter(),setTimeout((()=>{this.isBubblingUpToCore=!0,this.trigger("resize"),this.isBubblingUpToCore=!1}),10),window.clearTimeout(this.extraResizeTimeout),this.extraResizeTimeout=window.setTimeout((()=>{this.isBubblingUpToCoreNo2=!0,this.trigger("resize"),this.isBubblingUpToCoreNo2=!1}),200)))},this.on("resize",this.resize,this),this.on("toggleMenu",(t=>{this.sideBar.container.addEventListener("transitionend",(()=>{this.trigger("resize")}));const e=!t.data?.shouldNotFocusNav;this.pageContent.toggleNavigationMenu(),this.statusBarHeader.menuToggleButton.setAttribute("aria-expanded",this.statusBarHeader.menuToggleButton.classList.toggle("h5p-interactive-book-status-menu-active")?"true":"false"),this.pageContent.sidebarIsOpen&&e&&this.sideBar.focus()})),this.on("scrollToTop",(t=>{if(!0===H5P.isFullscreen){const t=this.pageContent.container;t.scrollBy(0,-t.scrollHeight)}else{if(t?.data?.preventScrollToTop)return;!1!==t?.data?.focus&&this.statusBarHeader.wrapper.scrollIntoView({block:"nearest"})}})),this.on("newChapter",(e=>{if(!this.pageContent.columnNodes[this.getActiveChapter()].classList.contains("h5p-interactive-book-animate")){if(this.newHandler=e.data,e.data.newHash=t.createFragmentsString(this.newHandler),this.newHandler.redirectFromComponent=!0,this.getChapterId(e.data.chapter)===this.activeChapter){if(t.areFragmentsEqual(e.data,t.extractFragmentsFromURL(this.validateFragments,this.hashWindow),["h5pbookid","chapter","section","headerNumber"]))return void this.pageContent.changeChapter(!1,e.data)}if(this.params.behaviour.progressAuto){const t=this.getChapterId(this.newHandler.chapter);this.isFinalChapterWithoutTask(t)&&this.setChapterRead(t)}H5P.trigger(this,"changeHash",e.data),H5P.trigger(this,"scrollToTop",e.data)}})),this.isCurrentChapterRead=()=>this.isChapterRead(this.chapters[this.activeChapter],this.params.behaviour.progressAuto),this.isChapterRead=(t,e=this.params.behaviour.progressAuto)=>t.completed||e&&0===t.tasksLeft,this.isFinalChapterWithoutTask=t=>0===this.chapters[t].maxTasks&&this.chapters.slice(0,t).concat(this.chapters.slice(t+1)).every((t=>0===t.tasksLeft)),this.setChapterRead=(t=this.activeChapter,e=!0)=>{this.handleChapterCompletion(t,e),this.sideBar.updateChapterProgressIndicator(t,e?"DONE":this.hasChapterStartedTasks(this.chapters[t])?"STARTED":"BLANK")},this.hasChapterStartedTasks=t=>t.sections.filter((t=>t.taskDone)).length>0,this.getChapterStatus=(t,e=this.params.behaviour.progressAuto)=>{let s="BLANK";return this.isChapterRead(t,e)?s="DONE":this.hasChapterStartedTasks(t)&&(s="STARTED"),s},this.updateChapterProgress=(t,e=!1)=>{if(!this.params.behaviour.progressIndicators)return;const s=this.chapters[t];let a;a=s.maxTasks?this.getChapterStatus(s):this.isChapterRead(s)&&e?"DONE":"BLANK","DONE"===a&&this.handleChapterCompletion(t),this.sideBar.updateChapterProgressIndicator(t,a)},this.getChapterId=t=>{t=t.replace("h5p-interactive-book-chapter-","");const e=this.chapters.map((t=>t.instance.subContentId)).indexOf(t);return-1===e?0:e},this.handleChapterCompletion=(t,e=!0)=>{const s=this.chapters[t];if(!0!==s.isSummary){if(!e)return s.completed=!1,this.completed=!1,void this.trigger("bookCompleted",{completed:this.completed});s.completed||(s.completed=!0,s.instance.triggerXAPIScored(s.instance.getScore(),s.instance.getMaxScore(),"completed")),!this.completed&&this.chapters.filter((t=>!t.isSummary)).every((t=>t.completed))&&(this.completed=!0,this.trigger("bookCompleted",{completed:this.completed}))}},this.shouldFooterBeHidden=()=>this.isFullscreen,this.getContainerWidth=()=>this.pageContent&&this.pageContent.container?this.pageContent.container.offsetWidth:0,this.changeChapter=t=>{this.pageContent.changeChapter(t,this.newHandler),this.statusBarHeader.updateStatusBar(),this.statusBarFooter.updateStatusBar(),this.newHandler.redirectFromComponent=!1},this.breakpoints=()=>[{className:this.smallSurface,shouldAdd:t=>t<43},{className:this.mediumSurface,shouldAdd:t=>t>=43&&t<60},{className:this.largeSurface,shouldAdd:t=>t>=60}],H5P.on(this,"respondChangeHash",(()=>{const e=t.extractFragmentsFromURL(n.validateFragments,this.hashWindow);e.h5pbookid&&String(e.h5pbookid)===String(n.contentId)&&this.redirectChapter(e)})),H5P.on(this,"changeHash",(t=>{String(t.data.h5pbookid)===String(this.contentId)&&(this.hashWindow.location.hash=t.data.newHash)})),H5P.externalDispatcher.on("xAPI",(function(t){const e=["answered","completed","interacted","attempted"].indexOf(t.getVerb())>-1,s=n.chapters.length;if(n!==this&&e&&s){const t=this.subContentId||this.contentData?.subContentId;if(!t)return;n.setSectionStatusByID(t,n.activeChapter)}})),this.redirectChapter=t=>{this.newHandler.redirectFromComponent||(t.h5pbookid&&String(t.h5pbookid)===String(n.contentId)?n.newHandler=t:n.newHandler={chapter:`h5p-interactive-book-chapter-${n.chapters[0].instance.subContentId}`,h5pbookid:n.h5pbookid}),n.changeChapter(!1)},this.setSectionStatusByID=(t,e)=>{this.chapters[e].sections.forEach(((s,a)=>{const r=s.instance;r.subContentId!==t||s.taskDone||(s.taskDone=!r.getAnswerGiven||r.getAnswerGiven(),this.sideBar.setSectionMarker(e,a),s.taskDone&&(this.chapters[e].tasksLeft-=1),this.updateChapterProgress(e))}))},this.addHashListener=t=>{t.addEventListener("hashchange",(t=>{H5P.trigger(this,"respondChangeHash",t)})),this.hashWindow=t};try{this.addHashListener(top)}catch(t){if(!(t instanceof DOMException))throw t;this.addHashListener(window)}this.displayCover=t=>{this.hideAllElements(!0),t.append(this.cover.container),t.addClass("covered"),this.cover.initMedia()},this.attach=t=>{this.mainWrapper=t,t.addClass("h5p-interactive-book h5p-scrollable-fullscreen"),this.isEdge18orEarlier()&&t.addClass("edge-18"),this.setWrapperClassFromRatio(this.mainWrapper),this.cover&&this.shouldShowCover&&this.displayCover(t),t.append(this.statusBarHeader.wrapper);const e=this.pageContent.container.firstChild;e&&this.pageContent.container.insertBefore(this.sideBar.container,e),t.append(this.pageContent.container),t.append(this.statusBarFooter.wrapper),this.$wrapper=t,this.params.behaviour.defaultTableOfContents&&!this.isSmallSurface()&&this.trigger("toggleMenu",{shouldNotFocusNav:!0}),this.pageContent.updateFooter()},this.isEdge18orEarlier=function(){const t=window.navigator.userAgent,e=t.indexOf("Edge/");if(e<0)return!1;const s=t.substring(e+5,t.indexOf(".",e));return parseInt(s)<=18},this.hideAllElements=function(t){const e=[this.statusBarHeader.wrapper,this.statusBarFooter.wrapper,this.pageContent.container];t?e.forEach((t=>{t.classList.add("h5p-content-hidden"),t.classList.add("h5p-interactive-book-cover-present")})):e.forEach((t=>{t.classList.remove("h5p-content-hidden"),t.classList.remove("h5p-interactive-book-cover-present")}))};const c=t.extractFragmentsFromURL(this.validateFragments,this.hashWindow);this.shouldShowCover=this.params.showCoverPage&&!(c.chapter||r.previousState?.urlFragments?.chapter),this.params.showCoverPage&&(this.cover=new o(this.params.bookCover,r.metadata.title,this.l10n.read,s,this));const h={...r,parent:this};this.pageContent=new m(this.params,s,h,this,{l10n:{markAsFinished:this.l10n.markAsFinished},behaviour:this.params.behaviour}),this.chapters=this.pageContent.getChapters(),this.sideBar=new a(this.params,s,r.metadata.title,this,this.chapters),this.chapters.forEach(((t,e)=>{this.setChapterRead(e,t.completed)})),this.statusBarHeader=new i(s,this.chapters.length,this,{l10n:this.l10n,a11y:this.params.a11y,behaviour:this.params.behaviour,displayFullScreenButton:!0,displayMenuToggleButton:!0,preventScrollToTop:!0},"h5p-interactive-book-status-header"),this.statusBarFooter=new i(s,this.chapters.length,this,{l10n:this.l10n,a11y:this.params.a11y,behaviour:this.params.behaviour,displayToTopButton:!0},"h5p-interactive-book-status-footer"),this.hasCover()?(this.hideAllElements(!0),this.on("coverRemoved",(t=>{this.hideAllElements(!1),this.params.chapters[this.activeChapter]?.subContentId&&this.trigger("newChapter",{h5pbookid:this.contentId,chapter:`h5p-interactive-book-chapter-${this.params.chapters[this.activeChapter].subContentId}`,section:0,focus:t.data}),this.trigger("resize"),this.setActivityStarted(),t.data&&this.statusBarHeader.progressBar.progress.focus()}))):this.setActivityStarted(),this.hasValidChapters()&&(this.statusBarHeader.updateStatusBar(),this.statusBarFooter.updateStatusBar())}static sanitizeConfig(t){const{read:e="Read",displayTOC:s="Display &#039;Table of contents&#039;",hideTOC:a="Hide &#039;Table of contents&#039;",nextPage:r="Next page",previousPage:i="Previous page",chapterCompleted:n="Page completed!",partCompleted:o="@pages of @total completed",incompleteChapter:c="Incomplete page",navigateToTop:h="Navigate to the top",markAsFinished:l="I have finished this page",fullscreen:p="Fullscreen",exitFullscreen:d="Exit fullscreen",bookProgressSubtext:u="@count of @total pages",interactionsProgressSubtext:m="@count of @total interactions",submitReport:g="Submit Report",restartLabel:b="Restart",summaryHeader:v="Summary",allInteractions:f="All interactions",unansweredInteractions:k="Unanswered interactions",scoreText:y="@score / @maxscore",leftOutOfTotalCompleted:C="@left of @max interactinos completed",noInteractions:w="No interactions",score:S="Score",summaryAndSubmit:L="Summary & submit",noChapterInteractionBoldText:x="You have not interacted with any pages.",noChapterInteractionText:E="You have to interact with at least one page before you can see the summary.",yourAnswersAreSubmittedForReview:A="Your answers are submitted for review!",bookProgress:T="Book progress",interactionsProgress:M="Interactions progress",totalScoreLabel:I="Total score",...P}=t;return P.chapters=P.chapters.map((t=>(t.params.content=t.params.content?.filter((t=>t.content)),t))).filter((t=>t.params.content&&t.params.content.length>0)),P.behaviour.displaySummary=void 0===P.behaviour.displaySummary||P.behaviour.displaySummary,P.l10n={read:e,displayTOC:s,hideTOC:a,nextPage:r,previousPage:i,chapterCompleted:n,partCompleted:o,incompleteChapter:c,navigateToTop:h,markAsFinished:l,fullscreen:p,exitFullscreen:d,bookProgressSubtext:u,interactionsProgressSubtext:m,submitReport:g,restartLabel:b,summaryHeader:v,allInteractions:f,unansweredInteractions:k,scoreText:y,leftOutOfTotalCompleted:C,noInteractions:w,score:S,summaryAndSubmit:L,noChapterInteractionBoldText:x,noChapterInteractionText:E,yourAnswersAreSubmittedForReview:A,bookProgress:T,interactionsProgress:M,totalScoreLabel:I},P}}H5P=H5P||{},H5P.InteractiveBook=g})()})();;// Will render a Question with multiple choices for answers.

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

var H5P = H5P || {};

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

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

  var defaults = {
    image: null,
    question: "No question text provided",
    answers: [
      {
        tipsAndFeedback: {
          tip: '',
          chosenFeedback: '',
          notChosenFeedback: ''
        },
        text: "Answer 1",
        correct: true
      }
    ],
    overallFeedback: [],
    weight: 1,
    userAnswers: [],
    UI: {
      checkAnswerButton: 'Check',
      submitAnswerButton: 'Submit',
      showSolutionButton: 'Show solution',
      tryAgainButton: 'Try again',
      scoreBarLabel: 'You got :num out of :total points',
      tipAvailable: "Tip available",
      feedbackAvailable: "Feedback available",
      readFeedback: 'Read feedback',
      shouldCheck: "Should have been checked",
      shouldNotCheck: "Should not have been checked",
      noInput: 'Input is required before viewing the solution',
      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,
      type: 'auto',
      singlePoint: true,
      randomAnswers: false,
      showSolutionsRequiresInput: true,
      autoCheck: false,
      passPercentage: 100,
      showScorePoints: true
    }
  };
  var params = $.extend(true, defaults, options);
  // Keep track of number of correct choices
  var numCorrect = 0;

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

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

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

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

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

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

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

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

  var score = 0;
  var solutionsVisible = false;

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

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

  /**
   * Register the different parts of the task with the H5P.Question structure.
   */
  self.registerDomElements = function () {
    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,
            title: media.params.title,
            expandImage: media.params.expandImage,
            minimizeImage: media.params.minimizeImage
          });
        }
      }
      else if (type === 'H5P.Video') {
        if (media.params.sources) {
          // Register task video
          self.setVideo(media);
        }
      }
      else if (type === 'H5P.Audio') {
        if (media.params.files) {
          // Register task audio
          self.setAudio(media);
        }
      }
    }

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

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

    // Register task content area
    $myDom = $('<ul>', {
      'class': 'h5p-answers',
      role: params.role,
      'aria-labelledby': params.labelId
    });

    for (let i = 0; i < params.answers.length; i++) {
      const answer = params.answers[i];
      answer.text = answer.text ?? '<div></div>';
      $('<li>', {
        'class': 'h5p-answer',
        role: answer.role,
        tabindex: answer.tabindex,
        'aria-checked': answer.checked,
        'data-id': i,
        html: '<div class="h5p-alternative-container"><span class="h5p-alternative-inner">' + answer.text + '</span></div>',
        appendTo: $myDom
      });
    }

    self.setContent($myDom, {
      'class': params.behaviour.singleAnswer ? 'h5p-radio' : 'h5p-check'
    });

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

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

      tip = tip.trim();
      var tipContent = tip
        .replace(/&nbsp;/g, '')
        .replace(/<p>/g, '')
        .replace(/<\/p>/g, '')
        .trim();
      if (!tipContent.length) {
        return; // Empty tip
      }
      else {
        $(this).addClass('h5p-has-tip');
      }

      // Add tip
      var $wrap = $('<div/>', {
        'class': 'h5p-multichoice-tipwrap',
        'aria-label': params.UI.tipAvailable + '.'
      });

      var $multichoiceTip = $('<div>', {
        'role': 'button',
        'tabindex': 0,
        'title': params.UI.tipsLabel,
        'aria-label': params.UI.tipsLabel,
        'aria-expanded': false,
        'class': 'multichoice-tip',
        appendTo: $wrap
      });

      var tipIconHtml = '<span class="joubel-icon-tip-normal">' +
                          '<span class="h5p-icon-shadow"></span>' +
                          '<span class="h5p-icon-speech-bubble"></span>' +
                          '<span class="h5p-icon-info"></span>' +
                        '</span>';

      $multichoiceTip.append(tipIconHtml);

      $multichoiceTip.click(function () {
        var $tipContainer = $multichoiceTip.parents('.h5p-answer');
        var openFeedback = !$tipContainer.children('.h5p-feedback-dialog').is($feedbackDialog);
        removeFeedbackDialog();

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

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

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

        self.trigger('resize');

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

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

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

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

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

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

        // Select new answer
        $ans.addClass('h5p-selected').attr('tabindex', '0').attr('aria-checked', 'true');
      }
      else {
        if ($ans.attr('aria-checked') === 'true') {
          const pos = params.userAnswers.indexOf(num);
          if (pos !== -1) {
            params.userAnswers.splice(pos, 1);
          }

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

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

        // Calculate score
        calcScore();
      }

      self.triggerXAPI('interacted');
      hideSolution($ans);

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

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

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

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

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

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

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

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

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

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

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

    $myDom.find('.h5p-answer').each(function (i, e) {
      var $e = $(e);
      var a = params.answers[i];
      const className = 'h5p-solution-icon-' + (params.behaviour.singleAnswer ? 'radio' : 'checkbox');

      if (a.correct) {
        $e.addClass('h5p-should').append($('<span/>', {
          'class': className,
          html: params.UI.shouldCheck + '.'
        }));
      }
      else {
        $e.addClass('h5p-should-not').append($('<span/>', {
          'class': className,
          html: params.UI.shouldNotCheck + '.'
        }));
      }
    }).find('.h5p-question-plus-one, .h5p-question-minus-one').remove();

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

    // Move focus back to the first alternative so that the user becomes
    // aware that the solution is being shown.
    $myDom.find('.h5p-answer:first-child').focus();

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

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

  /**
   * Hide solution for the given answer(s)
   *
   * @private
   * @param {H5P.jQuery} $answer
   */
  var hideSolution = function ($answer) {
    $answer
      .removeClass('h5p-correct')
      .removeClass('h5p-wrong')
      .removeClass('h5p-should')
      .removeClass('h5p-should-not')
      .removeClass('h5p-has-feedback')
      .find('.h5p-question-plus-one, ' +
        '.h5p-question-minus-one, ' +
        '.h5p-answer-icon, ' +
        '.h5p-solution-icon-radio, ' +
        '.h5p-solution-icon-checkbox, ' +
        '.h5p-feedback-dialog')
        .remove();
  };

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

    hideSolution($('.h5p-answer', $myDom));

    this.removeFeedback(); // Reset feedback

    self.trigger('resize');
  };

  /**
   * Resets the whole task.
   * Used in contracts with integrated content.
   * @private
   * @param {boolean} moveFocus True to move the focus to first option
   * This prevents loss of focus if reset from within content
   */
  this.resetTask = function (moveFocus = false) {
    for (let i = 0; i < params.answers.length; i++) {
      if (params.answers[i].checked) {
        delete params.answers[i].checked;
      }
    }
    self.answered = false;
    self.hideSolutions();
    params.userAnswers = [];
    removeSelections(moveFocus);
    self.showButton('check-answer');
    self.hideButton('try-again');
    self.hideButton('show-solution');
    enableInput();
    $myDom?.find('.h5p-feedback-available').remove();
  };

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

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

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

    // Remove all tip dialogs
    removeFeedbackDialog();

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

    self.showCheckSolution();
    disableInput();

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

  /**
   * Adds the ui buttons.
   * @private
   */
  var addButtons = 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
    self.addButton('show-solution', params.UI.showSolutionButton, function () {
      if (params.behaviour.showSolutionsRequiresInput && !self.getAnswerGiven(true)) {
        // Require answer before solution can be viewed
        self.updateFeedbackContent(params.UI.noInput);
        self.read(params.UI.noInput);
      }
      else {
        calcScore();
        self.showAllSolutions();
      }

    }, false, {
      'aria-label': params.UI.a11yShowSolution,
    });

    // Check button
    if (params.behaviour.enableCheckButton && (!params.behaviour.autoCheck || !params.behaviour.singleAnswer)) {
      self.addButton('check-answer', params.UI.checkAnswerButton,
        function () {
          self.answered = true;
          checkAnswer();
          $myDom.find('.h5p-answer:first-child').focus();
        },
        true,
        {
          'aria-label': params.UI.a11yCheck,
        },
        {
          confirmationDialog: {
            enable: params.behaviour.confirmCheckDialog,
            l10n: params.confirmCheck,
            instance: self,
            $parentElement: $container
          },
          contentData: self.contentData,
          textIfSubmitting: params.UI.submitAnswerButton,
        }
      );
    }

    // Try Again button
    self.addButton('try-again', params.UI.tryAgainButton, function () {
      self.resetTask(true);

      if (params.behaviour.randomAnswers) {
        // reshuffle answers
       var oldIdMap = idMap;
       idMap = getShuffleMap();
       var answersDisplayed = $myDom.find('.h5p-answer');
       // remember tips
       var tip = [];
       for (i = 0; i < answersDisplayed.length; i++) {
         tip[i] = $(answersDisplayed[i]).find('.h5p-multichoice-tipwrap');
       }
       // Those two loops cannot be merged or you'll screw up your tips
       for (i = 0; i < answersDisplayed.length; i++) {
         // move tips and answers on display
         $(answersDisplayed[i]).find('.h5p-alternative-inner').html(params.answers[i].text);
         $(tip[i]).detach().appendTo($(answersDisplayed[idMap.indexOf(oldIdMap[i])]).find('.h5p-alternative-container'));
       }
     }
    }, false, {
      'aria-label': params.UI.a11yRetry,
    }, {
      confirmationDialog: {
        enable: params.behaviour.confirmRetryDialog,
        l10n: params.confirmRetry,
        instance: self,
        $parentElement: $container
      }
    });
  };

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

    var feedback = H5P.Question.determineOverallFeedback(params.overallFeedback, ratio);

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

  /**
   * Shows feedback on the selected fields.
   * @public
   * @param {boolean} [skipFeedback] Skip showing feedback if true
   */
  this.showCheckSolution = function (skipFeedback) {
    var scorePoints;
    if (!(params.behaviour.singleAnswer || params.behaviour.singlePoint || !params.behaviour.showScorePoints)) {
      scorePoints = new H5P.Question.ScorePoints();
    }

    $myDom.find('.h5p-answer').each(function (i, e) {
      var $e = $(e);
      var a = params.answers[i];
      var chosen = ($e.attr('aria-checked') === 'true');
      if (chosen) {
        if (a.correct) {
          // May already have been applied by instant feedback
          if (!$e.hasClass('h5p-correct')) {
            $e.addClass('h5p-correct').append($('<span/>', {
              'class': 'h5p-answer-icon',
              html: params.UI.correctAnswer + '.'
            }));
          }
        }
        else {
          if (!$e.hasClass('h5p-wrong')) {
            $e.addClass('h5p-wrong').append($('<span/>', {
              'class': 'h5p-answer-icon',
              html: params.UI.wrongAnswer + '.'
            }));
          }
        }

        if (scorePoints) {
          var alternativeContainer = $e[0].querySelector('.h5p-alternative-container');

          if (!params.behaviour.autoCheck || alternativeContainer.querySelector('.h5p-question-plus-one, .h5p-question-minus-one') === null) {
            alternativeContainer.appendChild(scorePoints.getElement(a.correct));
          }
        }
      }

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

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

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

    if (fullScore) {
      self.hideButton('check-answer');
      self.hideButton('try-again');
      self.hideButton('show-solution');
    }

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

    self.trigger('resize');
  };

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

    $('.h5p-answers').removeAttr('role');
  };

  /**
   * Enables new input.
   */
  var enableInput = function () {
    $('.h5p-answer', $myDom)
      .attr({
        'aria-disabled': 'false',
        'role': params.behaviour.singleAnswer ? 'radio' : 'checkbox',
      });

    $('.h5p-answers').attr('role', params.role);
  };

  var calcScore = function () {
    score = 0;
    for (const answer of params.userAnswers) {
      const choice = params.answers[answer];
      const weight = (choice.weight !== undefined ? choice.weight : 1);
      if (choice.correct) {
        score += weight;
      }
      else {
        score -= weight;
      }
    }
    if (score < 0) {
      score = 0;
    }
    if (!params.userAnswers.length && blankIsCorrect) {
      score = params.weight;
    }
    if (params.behaviour.singlePoint) {
      score = (100 * score / calculateMaxScore()) >= params.behaviour.passPercentage ? params.weight : 0;
    }
  };

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

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

    // Set focus to first option
    if (moveFocus || self.isRoot()) {
      $answers.first().focus();
    }

    calcScore();
  };

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

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

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

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

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

  /**
   * Create a map pointing from original answers to shuffled answers
   *
   * @return {number[]} map pointing from original answers to shuffled answers
   */
  var getShuffleMap = function() {
    params.answers = H5P.shuffleArray(params.answers);

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

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

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

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

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

  var hasCheckedAnswer = false;

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

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

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

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

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

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

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

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

  this.getTitle = function () {
    return H5P.createTitle((this.contentData && this.contentData.metadata && this.contentData.metadata.title) ? this.contentData.metadata.title : 'Multiple Choice');
  };
};

H5P.MultiChoice.prototype = Object.create(H5P.Question.prototype);
H5P.MultiChoice.prototype.constructor = H5P.MultiChoice;
;		(function(xopen, fetch, dataurls) {

			switch(location.protocol.split(':')[0]) {
				case 'http':
				case 'https':
					return;
			};

			const url2data	= function(oldurl) {
					switch(oldurl.split(':')[0]) {
						case 'blob':
							console.log('blob', oldurl);
						case 'data':
							return oldurl;
					}
					let urltoks	 = oldurl.replace(H5PIntegration.url, '.').split('/');
					if(urltoks[0] == '.') {
						urltoks.shift();
						const url	= urltoks.join('/');
						if(typeof dataurls[url]!=='undefined') {
							if(dataurls[url][0]=='application/json') {
								return 'data:application/json;text,' + dataurls[url][1];
							}
							return 'data:' + dataurls[url].join(';base64,');
						}
					}
					console.error('url not found:', oldurl);
					return "data:;text,";
			};
			window.fetch = function() {
				arguments[0]	= url2data(arguments[0]);
				return fetch.apply(this, arguments);
			};
			XMLHttpRequest.prototype.open = function() {
				arguments[1]	= url2data(arguments[1]);
				return xopen.apply(this, arguments);
			};
		})(XMLHttpRequest.prototype.open, window.fetch, {"libraries\/H5P.Image-1.1\/library.json":["application\/json","{\"title\":\"Image\",\"contentType\":\"Media\",\"description\":\"Simple library that displays an image.\",\"majorVersion\":1,\"minorVersion\":1,\"patchVersion\":22,\"runnable\":0,\"machineName\":\"H5P.Image\",\"author\":\"Joubel\",\"coreApi\":{\"majorVersion\":1,\"minorVersion\":19},\"preloadedJs\":[{\"path\":\"image.js\"}],\"preloadedCss\":[{\"path\":\"image.css\"}],\"metadataSettings\":{\"disable\":0,\"disableExtraTitleField\":1},\"editorDependencies\":[{\"machineName\":\"H5PEditor.ShowWhen\",\"majorVersion\":1,\"minorVersion\":0}]}"],"libraries\/H5PEditor.ShowWhen-1.0\/library.json":["application\/json","{\"machineName\":\"H5PEditor.ShowWhen\",\"title\":\"Toggle visibility of a field based on 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