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 || {};

/**
 * 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));
;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);
;!function(){"use strict";let t=function(){function t(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},e=arguments.length>1?arguments[1]:void 0;this.params=t,this.callbacks=e||{},this.content=document.createElement("div"),this.content.classList.add("h5p-crossword-clue-announcer"),this.clueId=document.createElement("span"),this.clueId.classList.add("h5p-crossword-clue-announcer-clue-id"),this.content.appendChild(this.clueId),this.clue=document.createElement("span"),this.clue.classList.add("h5p-crossword-clue-announcer-clue"),this.content.appendChild(this.clue),this.answerLength=document.createElement("span"),this.answerLength.classList.add("h5p-crossword-clue-announcer-answer-length"),this.content.appendChild(this.answerLength)}var e=t.prototype;return e.getDOM=function(){return this.content},e.setClue=function(t){t.orientation&&t.clueId&&t.clue&&t.answerLength&&(this.clueId.innerText=`${t.clueId} ${t.orientation}`,this.clue.innerText=t.clue,this.answerLength.innerText=`(${t.answerLength})`)},e.show=function(){this.content.classList.remove("h5p-crossword-display-none")},e.hide=function(){this.content.classList.add("h5p-crossword-display-none")},e.reset=function(){this.clueId.innerText="",this.clue.innerText="",this.answerLength.innerText=""},t}(),e=function(){function t(){}return t.extend=function(){for(let t=1;t<arguments.length;t++)for(let e in arguments[t])Object.prototype.hasOwnProperty.call(arguments[t],e)&&("object"==typeof arguments[0][e]&&"object"==typeof arguments[t][e]?this.extend(arguments[0][e],arguments[t][e]):arguments[0][e]=arguments[t][e]);return arguments[0]},t.htmlDecode=function(t){return(new DOMParser).parseFromString(t,"text/html").documentElement.textContent},t.stripHTML=function(t){const e=document.createElement("div");return e.innerHTML=t,e.textContent||e.innerText||""},t.createArray=function(e){const s=new Array(e||0);let o=e;if(arguments.length>1){const n=Array.prototype.slice.call(arguments,1);for(;o--;)s[e-1-o]=t.createArray.apply(this,n)}return s},t.shuffleArray=function(t){let e,s,o;for(o=t.length-1;o>0;o--)e=Math.floor(Math.random()*(o+1)),s=t[o],t[o]=t[e],t[e]=s;return t},t.formatLanguageCode=function(t){if("string"!=typeof t)return t;const e=t.split("-");return e[0]=e[0].toLowerCase(),e.length>1&&(e[1]=e[1].toUpperCase()),t=e.join("-")},t.toUpperCase=function(t){let e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:[];return"string"!=typeof t?null:("string"==typeof e&&(e=e.split("").map((t=>({lowerCase:t,upperCase:t})))),Array.isArray(e)||(e=[]),e=e.filter((t=>"string"==typeof t.lowerCase&&1===t.lowerCase.length&&"string"==typeof t.upperCase&&1===t.upperCase.length)),e.forEach(((e,s)=>{for(;-1!==t.indexOf(e.lowerCase);)t=t.replace(e.lowerCase,`[CROSSWORDPLACEHOLDER${s}]`)})),t=t.toUpperCase(),e.forEach(((e,s)=>{for(;-1!==t.indexOf(`[CROSSWORDPLACEHOLDER${s}]`);)t=t.replace(`[CROSSWORDPLACEHOLDER${s}]`,e.upperCase)})),t)},t.waitForDOM=function(t,e){let s=arguments.length>2&&void 0!==arguments[2]?arguments[2]:()=>{},o=arguments.length>3&&void 0!==arguments[3]?arguments[3]:50,n=arguments.length>4&&void 0!==arguments[4]?arguments[4]:100;if(0===o||!t||"function"!=typeof e||"function"!=typeof s)return void s();n=Math.max(50,n);document.querySelector(t)?e():setTimeout((()=>{this.waitForDOM(t,e,s,o<0?-1:o-1,n)}),n)},t.isControlKey=function(){let e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};return t.CONTROL_KEY_VALUES.includes(e.key)},t}();e.CONTROL_KEY_VALUES=["Backspace","Tab","Enter","Shift","Control","Alt","Pause","CapsLock","Escape","PageUp","PageDown","End","Home","ArrowLeft","ArrowUp","ArrowRight","ArrowDown","Insert","Delete","Meta","ContextMenu","F1","F2","F3","F4","F5","F6","F7","F8","F9","F10","F11","F12","NumLock","ScrollLock"],e.UPPERCASE_EXCEPTIONS=[{lowerCase:"ß",upperCase:"ẞ"}],e.CHARACTER_PLACEHOLDER="＿";var s=e;let o=function(){function t(t){let e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};this.params=s.extend({container:document.body,content:document.createElement("div"),styleBase:"h5p-crossword-overlay",position:{offsetHorizontal:0,offsetVertical:0},l10n:{closeWindow:"Close"}},t),this.callbacks=e,this.callbacks.onClose=e.onClose||(()=>{}),this.callbacks.onRead=e.onRead||(()=>{}),this.isVisible=!1,this.focusableElements=[],this.overlay=document.createElement("div"),this.overlay.classList.add(`${this.params.styleBase}-outer-wrapper`),this.overlay.classList.add("h5p-crossword-invisible"),this.overlay.setAttribute("role","dialog"),this.params.l10n.title&&this.overlay.setAttribute("aria-label",this.params.l10n.title),this.overlay.setAttribute("aria-modal","true"),this.content=document.createElement("div"),this.content.classList.add(`${this.params.styleBase}-content`),this.content.appendChild(this.params.content),this.buttonClose=document.createElement("button"),this.buttonClose.classList.add(`${this.params.styleBase}-button-close`),this.buttonClose.setAttribute("title",this.params.l10n.closeWindow),this.buttonClose.setAttribute("disabled","disabled"),this.buttonClose.addEventListener("click",(()=>{this.callbacks.onClose()})),this.overlay.appendChild(this.buttonClose),this.overlay.appendChild(this.content),document.addEventListener("focus",(t=>{this.isVisible&&0!==this.focusableElements.length&&this.trapFocus(t)}),!0),this.blocker=document.createElement("div"),this.blocker.classList.add("h5p-crossword-overlay-blocker"),this.blocker.classList.add("h5p-crossword-display-none")}var e=t.prototype;return e.getDOM=function(){return this.overlay},e.setContent=function(t){for(;this.content.firstChild;)this.content.removeChild(this.content.firstChild);this.content.appendChild(t),this.content.scrollTop=0},e.trapFocus=function(t){this.isChild(t.target)?this.currentFocusElement=t.target:(this.currentFocusElement===this.focusableElements[0]?this.currentFocusElement=this.focusableElements[this.focusableElements.length-1]:this.currentFocusElement=this.focusableElements[0],this.currentFocusElement.focus())},e.isChild=function(t){const e=t.parentNode;return!!e&&(e===this.overlay||this.isChild(e))},e.updateFocusableElements=function(){this.focusableElements=[].slice.call(this.overlay.querySelectorAll('video, audio, button, [href], input, select, textarea, [tabindex]:not([tabindex="-1"])')).filter((t=>"true"!==t.getAttribute("disabled")&&!0!==t.getAttribute("disabled")))},e.show=function(){this.blockerAppended||(this.container=document.body.querySelector(".h5p-container"),this.container.appendChild(this.blocker)),this.blockerAppended=!0,this.overlay.classList.remove("h5p-crossword-invisible"),this.blocker.classList.remove("h5p-crossword-display-none"),this.buttonClose.removeAttribute("disabled","disabled"),setTimeout((()=>{this.updateFocusableElements(),this.focusableElements.length>0&&this.focusableElements[0].focus();const t=this.overlay.querySelector(".h5p-advanced-text");let e;t?this.callbacks.onRead(t.innerText):e=this.overlay.querySelector(".h5p-image > img"),e&&this.callbacks.onRead(e.getAttribute("alt")||""),this.isVisible=!0,this.resize()}),0)},e.hide=function(){this.isVisible=!1,this.overlay.classList.add("h5p-crossword-invisible"),this.blocker.classList.add("h5p-crossword-display-none"),this.buttonClose.setAttribute("disabled","disabled")},e.resize=function(){this.container&&(this.content.style.maxHeight=`calc(${this.container.offsetHeight}px - ${t.CONTENT_MARGIN})`)},t}();o.CONTENT_MARGIN="7em";let n=function(){function t(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};this.params=s.extend({a11y:{listLabel:""}},t),this.charMarked=null,this.content=this.buildListContainer({listLabel:this.params.a11y.listLabel})}var e=t.prototype;return e.getDOM=function(){return this.content},e.buildListContainer=function(t){const e=document.createElement("div");e.classList.add("h5p-crossword-input-fields-group-solution-container"),e.classList.add("h5p-crossword-display-none");const s=document.createElement("div");return s.classList.add("h5p-crossword-input-fields-group-solution-inner"),e.appendChild(s),this.list=document.createElement("div"),this.list.classList.add("h5p-crossword-input-fields-group-solution-word"),this.list.setAttribute("role","list"),this.list.setAttribute("aria-label",t.listLabel),this.list.setAttribute("aria-expanded","false"),this.list.setAttribute("tabindex","0"),s.appendChild(this.list),this.list.addEventListener("keydown",(t=>{const e=this.charMarked||this.list.firstChild,s=this.list.getAttribute("aria-expanded");switch(t.code){case"Enter":case"Space":if(t.target!==t.currentTarget)return;"false"===s?(this.list.setAttribute("aria-expanded","true"),e&&(e.setAttribute("tabindex","0"),e.focus())):(this.list.setAttribute("aria-expanded","false"),e&&e.setAttribute("tabindex","-1"))}})),e},e.buildListItem=function(t){const e=document.createElement("span");e.classList.add("h5p-crossword-input-fields-group-solution-char-wrapper"),e.setAttribute("role","listitem"),e.setAttribute("tabindex","-1"),e.setAttribute("aria-label",t.ariaLabel),"neutral"===t.result?(e.classList.add("h5p-crossword-solution-no-input")," "!==t.char&&t.char!==s.CHARACTER_PLACEHOLDER||e.classList.add("h5p-crossword-solution-no-char")):"correct"===t.result?e.classList.add("h5p-crossword-solution-correct"):e.classList.add("h5p-crossword-solution-wrong"),t.scoreExplanation&&e.appendChild(t.scoreExplanation),e.addEventListener("focus",(t=>{this.charMarked=t.target})),e.addEventListener("keydown",(t=>{const e=t.target.parentNode.firstChild,s=t.target.parentNode.lastChild;switch(t.key){case"ArrowLeft":case"ArrowUp":t.preventDefault(),t.target.previousSibling&&(t.target.setAttribute("tabindex","-1"),t.target.previousSibling.setAttribute("tabindex","0"),t.target.previousSibling.focus());break;case"ArrowRight":case"ArrowDown":t.preventDefault(),t.target.nextSibling&&(t.target.setAttribute("tabindex","-1"),t.target.nextSibling.setAttribute("tabindex","0"),t.target.nextSibling.focus());break;case"Home":t.preventDefault(),t.target!==e&&(t.target.setAttribute("tabindex","-1"),e.setAttribute("tabindex","0"),e.focus());break;case"End":t.preventDefault(),t.target!==s&&(t.target.setAttribute("tabindex","-1"),s.setAttribute("tabindex","0"),s.focus())}}));const o=document.createElement("span");return o.classList.add("h5p-crossword-input-fields-group-solution-char"),o.innerHTML=t.char&&" "!==t.char.trim()?s.toUpperCase(t.char,s.UPPERCASE_EXCEPTIONS):"&nbsp;",e.appendChild(o),e},e.setChars=function(t){this.reset(),t.forEach((t=>{this.list.appendChild(this.buildListItem(t))}))},e.show=function(){this.content.classList.remove("h5p-crossword-display-none")},e.hide=function(){this.content.classList.add("h5p-crossword-display-none")},e.enable=function(){if(this.tabindexState&&this.tabindexState.list&&this.list.setAttribute("tabindex",this.tabindexState.list),this.tabindexState&&this.tabindexState.listItems){const t=this.list.children;for(let e=0;e<t.length;e++)t[e].setAttribute("tabindex",this.tabindexState.listItems[e])}},e.disable=function(){const t=[],e=this.list.children;for(let s=0;s<e.length;s++)t.push(e[s].getAttribute("tabindex")),e[s].setAttribute("tabindex","-1");this.tabindexState={list:this.list.getAttribute("tabindex"),listItems:t},this.list.setAttribute("tabindex","-1")},e.reset=function(){this.list.innerHTML="",this.list.setAttribute("aria-expanded","false"),this.list.setAttribute("tabindex","0"),this.charMarked=null,this.tabindexState=null},t}();let i=function(){function t(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},e=arguments.length>1?arguments[1]:void 0;this.params=s.extend({l10n:{extraClue:"Extra clue",closeWindow:"Close Window"}},t),this.callbacks=e||{},this.callbacks.onFieldInput=this.callbacks.onFieldInput||(()=>{}),this.callbacks.onRead=e.onRead||(()=>{}),this.inputFields=[],this.extraClues=[],this.content=document.createElement("div"),this.content.classList.add("h5p-crossword-input-container");const n=this.buildInputFieldsGroup({words:this.params.words.filter((t=>"across"===t.orientation)),title:t.l10n.across});this.content.appendChild(n);const i=this.buildInputFieldsGroup({words:this.params.words.filter((t=>"down"===t.orientation)),title:t.l10n.down});this.content.appendChild(i),this.overlay=new o({l10n:{closeWindow:this.params.l10n.closeWindow}},{onClose:()=>{this.handleOverlayClosed()},onRead:t=>{this.callbacks.onRead(t)}}),t.overlayContainer.appendChild(this.overlay.getDOM())}var e=t.prototype;return e.getDOM=function(){return this.content},e.buildInputFieldsGroup=function(t){t.words=t.words.sort(((t,e)=>t.clueId-e.clueId));const e=document.createElement("div");e.classList.add("h5p-crossword-input-fields-group");const o=document.createElement("div");return o.classList.add("h5p-crossword-input-fields-group-title"),o.innerText=t.title,e.appendChild(o),t.words.forEach((t=>{const o=document.createElement("div");o.classList.add("h5p-crossword-input-fields-group-wrapper");const i=document.createElement("div");i.classList.add("h5p-crossword-input-fields-group-wrapper-clue"),o.appendChild(i);const r=document.createElement("div");r.classList.add("h5p-crossword-input-fields-group-clue-id"),r.innerText=t.clueId,i.appendChild(r);const l=document.createElement("div");l.classList.add("h5p-crossword-input-fields-group-clue-content"),i.appendChild(l);const a=document.createElement("span");a.classList.add("h5p-crossword-input-fields-group-clue"),a.innerText=t.clue,l.appendChild(a);const c=document.createElement("span");if(c.classList.add("h5p-crossword-input-fields-group-answer-length"),c.innerText=`(${t.answer.split(" ").map((t=>t.length)).join(",")})`,l.appendChild(c),t.extraClue){const e=t.extraClue.library?t.extraClue.library.split(" ")[0]:null;if(e){const s=document.createElement("div");s.classList.add("h5p-crossword-extra-clue-instance-wrapper");const o=document.createElement("button");o.classList.add("h5p-crossword-input-fields-group-extra-clue");const n={clueId:t.clueId,orientation:t.orientation,clue:t.clue};o.setAttribute("aria-label",this.params.a11y.extraClueFor.replace("@clue",this.buildAriaLabel(n))),o.setAttribute("title",this.params.l10n.extraClue),l.appendChild(o),o.addEventListener("click",(()=>{this.disabled||(this.disable(),"H5P.Video"===e?t.extraClue.params.fit=!1:"H5P.Audio"===e&&(t.extraClue.params.playerMode="full",t.extraClue.params.fitToWrapper=!0),this.overlay.setContent(s),this.previousFocus=o,this.overlay.show(),this.extraClueInstance=H5P.newRunnable(t.extraClue,this.params.contentId,H5P.jQuery(s)))})),this.extraClues.push(o)}}const h=document.createElement("input");h.classList.add("h5p-crossword-input-fields-group-input");const u={clueId:t.clueId,orientation:t.orientation,clue:t.clue,length:t.answer.length};h.setAttribute("aria-label",this.buildAriaLabel(u)),h.setAttribute("autocomplete","off"),h.setAttribute("autocorrect","off"),h.setAttribute("maxLength",t.answer.length),h.setAttribute("spellcheck","false"),this.setInputFieldValue(h,""),o.appendChild(h),h.addEventListener("focus",(()=>{this.disabled||setTimeout((()=>{this.callbacks.onFieldInput({clueId:t.clueId,orientation:t.orientation,cursorPosition:Math.min(h.selectionStart,t.answer.length-1),text:h.value,readOffset:-1})}),0)})),h.addEventListener("keydown",(e=>{if(s.isControlKey(e))return;if(this.noListeners)return;const o=h.selectionStart;h.value=`${h.value.substring(0,o+1)}${h.value.substring(o+1)}`,h.selectionEnd=o+1;const n=s.toUpperCase(h.value,s.UPPERCASE_EXCEPTIONS);clearTimeout(this.tableUpdateTimeout),this.tableUpdateTimeout=setTimeout((()=>{const e=this.applySamsungWorkaround(n,s.toUpperCase(h.value,s.UPPERCASE_EXCEPTIONS));this.setInputFieldValue(h,e),h.setSelectionRange(o+1,o+1),this.callbacks.onFieldInput({clueId:t.clueId,orientation:t.orientation,cursorPosition:Math.min(o+1,t.answer.length-1),text:e,readOffset:-1})}),25)}),!1),h.addEventListener("keyup",(e=>{if(229===e.keyCode)return;if(this.noListeners)return;if(s.isControlKey(e)&&!["Backspace","Home","End","ArrowLeft","ArrowUp","ArrowRight","ArrowDown","Delete"].includes(e.key))return;let o=h.selectionStart;"Home"===e.code||"ArrowUp"===e.code?o=0:"End"!==e.code&&"ArrowDown"!==e.code||(o=Math.min(h.value.length,h.getAttribute("maxLength")-1)),this.setInputFieldValue(h,h.value),h.setSelectionRange(o,o),this.callbacks.onFieldInput({clueId:t.clueId,orientation:t.orientation,cursorPosition:o,text:h.value,readOffset:["Backspace","ArrowLeft","ArrowUp","ArrowRight","ArrowDown","Delete"].includes(e.key)?0:1})})),h.addEventListener("paste",(t=>{if(this.disabled)return;t.preventDefault();const e=t.clipboardData.getData("text");this.setInputFieldValue(h,e.substring(0,h.getAttribute("maxLength")))}));const d=this.params.a11y.resultFor.replace("@clue",`${t.clueId} ${this.params.a11y[t.orientation]}. ${t.clue} .`),p=new n({a11y:{listLabel:d}});o.appendChild(p.getDOM()),this.inputFields.push({clue:i,inputField:h,orientation:t.orientation,clueId:t.clueId,solution:p}),e.appendChild(o)})),e},e.applySamsungWorkaround=function(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:"",e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"";for(;t.length<e.length;)t=`${t}${s.CHARACTER_PLACEHOLDER}`;for(;e.length<t.length;)e=`${e}${s.CHARACTER_PLACEHOLDER}`;const o=[];for(let n=t.length-1;n>=0;n--)t[n]===e[n]?o[n]=s.CHARACTER_PLACEHOLDER:n+1<t.length&&"＿"!==o[n+1]?(o[n]=o[n+1],o[n+1]=s.CHARACTER_PLACEHOLDER):o[n]=e[n];let n=[],i=" ";for(let e=t.length-1;e>=0;e--){let r;o[e]!==s.CHARACTER_PLACEHOLDER&&(i=s.CHARACTER_PLACEHOLDER),r=o[e]!==s.CHARACTER_PLACEHOLDER?o[e]:t[e]!==s.CHARACTER_PLACEHOLDER?t[e]:i,n[e]=r}return n.join("").trimRight()},e.setInputFieldValue=function(t,e){let o=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{forceValue:!0};e=s.toUpperCase(e,s.UPPERCASE_EXCEPTIONS);let n="";if(o.forceValue){n=e;const o=new Array(t.maxLength+1).join(s.CHARACTER_PLACEHOLDER);n=o.split("").map(((t,e)=>n.length>e&&" "!==n[e]?n[e]:t)).join("")}else for(let t of e.split("")){if(" "===t)break;n=`${n}${t}`}t.value=s.toUpperCase(n,s.UPPERCASE_EXCEPTIONS)},e.buildAriaLabel=function(t){const e=[`${t.clueId} ${this.params.a11y[t.orientation]}. ${t.clue}`];return t.length&&e.push(this.params.a11y.lettersWord.replace("@length",t.length)),e.join(", ")},e.fillFields=function(t){t.forEach((t=>{const e=this.inputFields.filter((e=>e.orientation===t.orientation&&e.clueId===t.clueId));e.length>0&&this.setInputFieldValue(e[0].inputField,t.text)}))},e.focusClue=function(t){this.inputFields.forEach((t=>{t.clue.classList.remove("h5p-crossword-input-fields-group-clue-highlight-focus")}));const e=this.inputFields.filter((e=>e.orientation===t.orientation&&e.clueId===t.clueId));e.length>0&&e[0].clue.classList.add("h5p-crossword-input-fields-group-clue-highlight-focus")},e.checkAnswerWords=function(t){this.scorePoints=this.scorePoints||new H5P.Question.ScorePoints,this.inputFields.forEach((e=>{e.solution.show();const o=t.filter((t=>t.clueId===e.clueId&&t.orientation===e.orientation)).shift();let n,i;const r=[];r.push(o.answer),-1===o.score?(n=this.scorePoints.getElement(!1),i="wrong",r.push(this.params.a11y.wrong),r.push(`-1 ${this.params.a11y.point}`)):1===o.score?(n=this.scorePoints.getElement(!0),i="correct",r.push(this.params.a11y.correct),r.push(`1 ${this.params.a11y.point}`)):i="neutral",e.solution.setChars([{ariaLabel:`${r.join(". ")}.`,char:e.inputField.value.replace(s.CHARACTER_PLACEHOLDER," "),result:i,scoreExplanation:n}])}))},e.checkAnswer=function(t){this.scorePoints=this.scorePoints||new H5P.Question.ScorePoints;const e=[];this.inputFields.forEach((o=>{o.solution.show();const n=t.filter((t=>"across"===o.orientation?t.clueIdAcross===o.clueId:"down"===o.orientation&&t.clueIdDown===o.clueId));let i=s.toUpperCase(o.inputField.value,s.UPPERCASE_EXCEPTIONS).split(""),r=[];n.forEach(((t,o)=>{const l=e.some((e=>e.row===t.position.row&&e.column===t.position.column));e.push(t.position);const a=i.length>o?i[o]:" ";let c,h;t.answer&&""!==t.answer.trim()&&t.answer!==s.CHARACTER_PLACEHOLDER?t.answer===t.solution?(c="correct",l||(h=this.scorePoints.getElement(!0))):this.params.applyPenalties?(c="wrong",l||(h=this.scorePoints.getElement(!1))):c="neutral":c="neutral";const u=[];u.push(`${this.params.a11y.letterSevenOfNine.replace("@position",o+1).replace("@length",n.length)}`),u.push(t.answer&&""!==t.answer.trim()?t.answer:this.params.a11y.empty),"correct"===c?(u.push(this.params.a11y.correct),u.push(`1 ${this.params.a11y.point}`)):"wrong"===c&&(u.push(this.params.a11y.wrong),u.push(`-1 ${this.params.a11y.point}`)),r.push({ariaLabel:`${u.join(". ")}.`,char:a.replace(s.CHARACTER_PLACEHOLDER," ")||"&nbsp;",result:c,scoreExplanation:h})})),o.solution.setChars(r)}))},e.showSolutions=function(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:[];this.inputFields.forEach((e=>{let s=t.filter((t=>t.clueId===e.clueId&&t.orientation===e.orientation));if(!s||0===s.length)return;s=s[0],this.setInputFieldValue(e.inputField,s.answer),e.inputField.readOnly=!0,e.inputField.removeAttribute("disabled");const o=this.params.a11y.solutionFor.replace("@clue",`${s.clueId} ${this.params.a11y[s.orientation]}. ${s.clue} .`).replace("@solution",s.answer);e.inputField.setAttribute("aria-label",o),e.solution.disable()}))},e.reset=function(){this.inputFields.forEach((t=>{this.setInputFieldValue(t.inputField,""),t.inputField.readOnly=!1,t.clue.classList.remove("h5p-crossword-input-fields-group-clue-highlight-focus"),t.solution.hide(),t.solution.reset()}))},e.resize=function(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};t.height&&(this.content.style.setProperty("--h5p-crossword-input-container-height",`${t.height}px`),this.content.classList.toggle("has-scrollbar",this.content.scrollHeight>this.content.clientHeight)),this.extraClueInstance&&this.extraClueInstance.trigger("resize"),this.overlay.resize()},e.enable=function(){let t=arguments.length>0&&void 0!==arguments[0]&&arguments[0];this.inputFields.forEach((t=>{t.inputField.removeAttribute("disabled")})),this.extraClues.forEach((t=>{t.removeAttribute("disabled")})),this.content.classList.remove("h5p-crossword-disabled"),this.disabled=!1,this.noListeners=t},e.disable=function(){this.disabled=!0,this.noListeners=!0,this.extraClues.forEach((t=>{t.setAttribute("disabled",!0)})),this.content.classList.add("h5p-crossword-disabled"),this.inputFields.forEach((t=>{t.inputField.setAttribute("disabled",!0)}))},e.unhighlight=function(){this.inputFields.forEach((t=>{t.clue.classList.remove("h5p-crossword-input-fields-group-clue-highlight-focus")}))},e.handleOverlayClosed=function(){this.extraClueInstance&&"function"==typeof this.extraClueInstance.pause&&this.extraClueInstance.pause(),this.overlay.hide(),this.enable(),this.previousFocus&&this.previousFocus.focus(),this.previousFocus=null},t}(),r=function(){function t(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};this.params=s.extend({instantFeedback:!1,clueIdMarker:null,solution:null},t),this.callbacks=e||{},this.callbacks.onClick=e.onClick||(()=>{}),this.callbacks.onFocus=e.onFocus||(()=>{}),this.callbacks.onKeyup=e.onKeyup||(()=>{}),this.callbacks.onRead=e.onRead||(()=>{}),this.enabled=!0,this.previousTabIndex=null,this.position={row:t.row,column:t.column},this.solutionWordId=null,this.cell=this.buildCell(t);const o=this.buildCellContentWrapper();if(this.cell.appendChild(o),this.params.solution?(this.cellInput=this.buildCellInput(t),o.appendChild(this.cellInput),this.cellCanvas=this.buildCellCanvas(),o.appendChild(this.cellCanvas),this.cell.addEventListener("click",(()=>{this.enabled&&(this.callbacks.onClick(this.position),this.focus())}))):(this.cell.classList.add("h5p-crossword-cell-empty"),this.cell.setAttribute("aria-label",this.params.a11y.empty),this.params.hasBackgroundImage||(this.cell.style.backgroundColor=this.params.theme.backgroundColor)),this.params.clueIdMarker){const t=document.createElement("div");t.classList.add("h5p-crossword-cell-clue-id-marker"),t.innerText=this.params.clueIdMarker,o.appendChild(t)}}var e=t.prototype;return e.getDOM=function(){return this.cell},e.buildCell=function(t){const e=document.createElement("td");return e.classList.add("h5p-crossword-cell"),e.style.width=`${t.width}%`,e.setAttribute("role","gridcell"),e.dataset.col=t.column,e.dataset.row=t.row,e},e.buildCellContentWrapper=function(){const t=document.createElement("div");return t.classList.add("h5p-crossword-cell-content-wrapper"),t},e.buildCellCanvas=function(){const t=document.createElement("div");return t.classList.add("h5p-crossword-cell-canvas"),t},e.buildCellInput=function(){const t=document.createElement("input");return t.classList.add("h5p-crossword-cell-content"),t.setAttribute("type","text"),t.setAttribute("maxLength",1),t.setAttribute("autocomplete","new-password"),t.setAttribute("autocorrect","off"),t.setAttribute("spellcheck","false"),t.setAttribute("tabindex","-1"),t.addEventListener("input",(t=>{if(!this.enabled)return;this.setAnswer(s.toUpperCase(t.data,s.UPPERCASE_EXCEPTIONS),!0),this.cellInput.value="";const e=this.getInformation();this.callbacks.onKeyup(e),t.preventDefault()})),t.addEventListener("change",(t=>{t.preventDefault()})),t.addEventListener("keydown",(t=>{if(this.enabled)if(t.repeat)t.preventDefault();else if(t.key&&"Unidentified"!==t.key&&("Delete"===t.key||"Backspace"===t.key)){const t=this.getAnswer()?0:-1;this.setAnswer("");const e=this.getInformation();e.keepPosition=!0,e.nextPositionOffset=t,this.cellInput.value="",this.callbacks.onKeyup(e)}})),t.addEventListener("keyup",(t=>{if(this.enabled&&(!t.key||"Unidentified"===t.key))if(t.repeat)t.preventDefault();else if("Delete"===t.key||"Backspace"===t.key){const t=this.getAnswer()?0:-1;this.setAnswer("");const e=this.getInformation();e.keepPosition=!0,e.nextPositionOffset=t,this.cellInput.value="",this.callbacks.onKeyup(e)}})),t.addEventListener("focus",(t=>{this.callbacks.onFocus(this.position,t)})),t},e.getSolution=function(){return this.params.solution},e.getCurrentAnswer=function(){return this.cell.innerText.substring(0,1)},e.getInformation=function(){return{answer:this.answer?s.toUpperCase(this.answer,s.UPPERCASE_EXCEPTIONS):this.answer,clueIdAcross:this.params.clueIdAcross,clueIdDown:this.params.clueIdDown,position:this.position,score:this.getScore(),solution:this.params.solution,solutionWordId:this.solutionWordId||null}},e.getPosition=function(){return this.position},e.getClueId=function(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:"across";return"down"===t?this.params.clueIdDown:"across"===t?this.params.clueIdAcross:null},e.getAnswer=function(){return this.answer},e.getScore=function(){if(this.params.solution&&(" "!==this.params.solution||this.answer&&""!==this.answer.trim()&&this.answer!==s.CHARACTER_PLACEHOLDER))return this.answer&&""!==this.answer.trim()?this.answer!==this.params.solution?this.params.applyPenalties?-1:0:1:0},e.isFilled=function(){return this.params.solution?" "===this.params.solution?null:!(!this.answer||" "===this.answer):null},e.setTabIndex=function(t){isNaN(parseInt(t))||(this.cellInput?this.cellInput.setAttribute("tabindex",t):this.cell.setAttribute("tabindex",t))},e.setAriaLabel=function(t){this.cellInput.setAttribute("aria-label",t)},e.setSolutionState=function(t){if(this.cell.classList.remove("h5p-crossword-solution-correct"),this.cell.classList.remove("h5p-crossword-solution-wrong"),this.cell.classList.remove("h5p-crossword-solution-neutral"),t){const e="h5p-crossword-solution"+(t?`-${t}`:"");this.cell.classList.add(e)}},e.setAnswer=function(t){let e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];this.cellInput&&(""===t?(this.cellCanvas.innerText="",this.answer=void 0):(this.cellCanvas.innerText=s.toUpperCase(t.replace(new RegExp(s.CHARACTER_PLACEHOLDER,"g")," "),s.UPPERCASE_EXCEPTIONS),this.answer=s.toUpperCase(t,s.UPPERCASE_EXCEPTIONS)),this.params.instantFeedback&&this.checkAnswer(e))},e.setWidth=function(t){"number"!=typeof t||t<=0||(this.cell.style.width=`${t}px`)},e.focus=function(){setTimeout((()=>{this.cellInput?this.cellInput.focus():this.cell.focus()}),0)},e.highlight=function(t){if(!this.getSolution()&&"focus"!==t)return;const e="h5p-crossword-highlight"+(t?`-${t}`:"");this.cell.classList.add(e)},e.unhighlight=function(t){if(t){const e="h5p-crossword-highlight"+(t?`-${t}`:"");this.cell.classList.remove(e)}else this.cell.classList.remove("h5p-crossword-highlight-normal"),this.cell.classList.remove("h5p-crossword-highlight-focus")},e.showSolutions=function(){this.params.solution&&(this.setAnswer(this.params.solution),this.setSolutionState())},e.getSolutionState=function(){const t=(this.answer||"").trim();return t===this.params.solution&&""!==t?"correct":""===t||t===s.CHARACTER_PLACEHOLDER?"undefined":this.params.applyPenalties?"wrong":"neutral"},e.checkAnswer=function(){let t=arguments.length>0&&void 0!==arguments[0]&&arguments[0],e=this.getSolutionState();e="undefined"===e?void 0:e,this.setSolutionState(e),t&&("correct"===e?this.callbacks.onRead(this.params.a11y.correct):"wrong"===e&&this.callbacks.onRead(this.params.a11y.wrong))},e.reset=function(){const t=(arguments.length>0&&void 0!==arguments[0]?arguments[0]:{}).keepCorrectAnswers&&"correct"===this.getSolutionState();this.unhighlight(),this.setSolutionState(),t||this.setAnswer("",!1);const e=this.getInformation();return this.callbacks.onKeyup(e,!0),t},e.enable=function(){this.cellInput&&(this.previousTabIndex&&this.cell.setAttribute("tabindex",this.previousTabIndex),this.cellInput.removeAttribute("disabled")),this.enabled=!0},e.disable=function(){this.enabled=!1,this.cellInput&&this.cellInput.setAttribute("disabled","disabled"),this.previousTabIndex=this.cell.getAttribute("tabindex"),this.cell.removeAttribute("tabindex")},e.addSolutionWordIdMarker=function(t){t&&(this.solutionWordMarker=document.createElement("div"),this.solutionWordMarker.classList.add("h5p-crossword-cell-solution-word-marker"),this.solutionWordMarker.innerText=t,this.cell.insertBefore(this.solutionWordMarker,this.cell.firstChild),this.solutionWordCircle=document.createElement("div"),this.solutionWordCircle.classList.add("h5p-crossword-cell-solution-word-circle"),this.cell.insertBefore(this.solutionWordCircle,this.cell.firstChild),this.solutionWordId=t)},t}();let l=function(){function t(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},e=arguments.length>1?arguments[1]:void 0;this.params=s.extend({},t),this.params.theme.backgroundImage=this.params.theme.backgroundImage||null,this.callbacks=e||{},this.callbacks.onInput=this.callbacks.onInput||(()=>{}),this.callbacks.onFocus=this.callbacks.onFocus||(()=>{}),this.callbacks.onRead=e.onRead||(()=>{}),this.currentPosition={},this.currentOrientation="across",this.maxScore=null,this.cells=this.buildCells(this.params.dimensions,this.params.words),this.content=this.buildGrid(this.params),[].concat(...this.cells).filter((t=>null!==t.getSolution()))[0].setTabIndex("0"),this.content.addEventListener("keydown",(t=>{if(this.disabled)return;let e,s,o=t.target;switch(t.target.classList.contains("h5p-crossword-cell-content")&&(o=t.target.parentNode.parentNode),t.key){case"ArrowRight":t.preventDefault(),this.setcurrentOrientation("across",{row:parseInt(o.dataset.row),column:parseInt(o.dataset.col)+1}),this.moveTo({row:parseInt(o.dataset.row),column:parseInt(o.dataset.col)+1});break;case"ArrowLeft":t.preventDefault(),this.setcurrentOrientation("across",{row:parseInt(o.dataset.row),column:parseInt(o.dataset.col)-1}),this.moveTo({row:parseInt(o.dataset.row),column:parseInt(o.dataset.col)-1});break;case"ArrowDown":t.preventDefault(),this.setcurrentOrientation("across",{row:parseInt(o.dataset.row)+1,column:parseInt(o.dataset.col)}),this.moveTo({row:parseInt(o.dataset.row)+1,column:parseInt(o.dataset.col)});break;case"ArrowUp":t.preventDefault(),this.setcurrentOrientation("across",{row:parseInt(o.dataset.row)-1,column:parseInt(o.dataset.col)}),this.moveTo({row:parseInt(o.dataset.row)-1,column:parseInt(o.dataset.col)});break;case"Home":t.preventDefault(),t.ctrlKey?this.moveTo({row:0,column:0}):this.moveTo({row:parseInt(o.dataset.row),column:0});break;case"End":t.preventDefault(),t.ctrlKey?this.moveTo({row:this.params.dimensions.rows-1,column:this.params.dimensions.columns-1}):this.moveTo({row:parseInt(o.dataset.row),column:document.querySelector(`[data-row="${o.dataset.row}"]:last-of-type`).dataset.col});break;case"PageUp":t.preventDefault(),e=0;do{s=this.moveTo({row:e,column:o.dataset.col}),e++}while(!1===s);break;case"PageDown":t.preventDefault(),e=this.params.dimensions.rows-1;do{s=this.moveTo({row:e,column:o.dataset.col}),e--}while(!1===s)}}))}var e=t.prototype;return e.getDOM=function(){return this.content},e.buildCells=function(t){let e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:[];const o=s.createArray(t.rows,t.columns);for(let e=0;e<t.rows;e++)for(let s=0;s<t.columns;s++)o[e][s]={row:e,column:s,solution:null,id:null};e.forEach((t=>{let e=t.starty-1,s=t.startx-1;for(let n=0;n<t.answer.length;n++)"none"!==t.orientation&&(o[e][s]={row:e,column:s,solution:t.answer.substring(n,n+1),solutionLength:t.answer.length,solutionIndex:n+1,clue:t.clue,clueIdAcross:"across"===t.orientation?t.clueId:o[e][s].clueIdAcross,clueIdDown:"down"===t.orientation?t.clueId:o[e][s].clueIdDown,clueIdMarker:0===n?t.clueId:o[e][s].clueIdMarker},"down"===t.orientation?e++:s++)}));const n=s.createArray(t.rows,t.columns);return[].concat(...o).forEach((e=>{n[e.row][e.column]=new r({row:e.row,column:e.column,solution:e.solution,solutionIndex:e.solutionIndex,solutionLength:e.solutionLength,width:100/t.columns,clueIdMarker:e.clueIdMarker,clue:e.clue,clueIdAcross:e.clueIdAcross,clueIdDown:e.clueIdDown,instantFeedback:this.params.instantFeedback,applyPenalties:this.params.applyPenalties,hasBackgroundImage:!!this.params.theme.backgroundImage,theme:this.params.theme,a11y:{correct:this.params.a11y.correct,wrong:this.params.a11y.wrong,empty:this.params.a11y.empty}},{onClick:t=>{this.handleCellClick(t)},onFocus:(t,e)=>{this.handleCellFocus(t,e)},onKeyup:(t,e)=>{this.handleCellKeyup(t,e??!1)},onRead:t=>{this.callbacks.onRead(t)}})})),n},e.findSolutionWordCells=function(t){if(!t||""===t)return[];const e=[];let o=!0,n=[].concat(...this.cells).filter((t=>null!==t.getSolution()));return t.split("").forEach((t=>{if(!1===o)return;const i=s.shuffleArray(n.filter((s=>s.getSolution()===t&&-1===e.indexOf(s))));0!==i.length?e.push(i[0]):o=!1})),e.length===t.length?e:[]},e.addSolutionWord=function(t){if(!t||""===t)return!1;const e=this.findSolutionWordCells(t);return e.forEach(((t,e)=>{t.addSolutionWordIdMarker(e+1)})),e.length>0},e.buildGrid=function(t){const e=document.createElement("table");if(e.classList.add("h5p-crossword-grid"),e.style.backgroundColor=t.theme.backgroundColor,e.style.maxWidth=`calc(2 * ${t.dimensions.columns} * 32px)`,t.theme.backgroundImage){e.classList.add("h5p-crossword-grid-background-image");const s=document.createElement("img");H5P.setSource(s,t.theme.backgroundImage,t.contentId),e.style.backgroundImage=`url('${s.src}')`}e.setAttribute("role","grid"),e.setAttribute("aria-label",this.params.a11y.crosswordGrid);const s=document.createElement("tbody");s.setAttribute("role","rowgroup");for(let e=0;e<t.dimensions.rows;e++){const o=this.buildGridRow(t.dimensions,e);s.appendChild(o)}return e.appendChild(s),e},e.buildGridRow=function(t,e){const s=document.createElement("tr");s.setAttribute("role","row");for(let o=0;o<t.columns;o++)s.appendChild(this.cells[e][o].getDOM());return s},e.moveTo=function(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];if(t.row<0||t.row>this.params.dimensions.rows-1)return!1;if(t.column<0||t.column>this.params.dimensions.columns-1)return!1;if(null===this.cells[t.row][t.column].getSolution())return!1;const s=this.cells[t.row][t.column];return!!s&&([].concat(...this.cells).forEach((t=>{t.setTabIndex("-1")})),s.setTabIndex("0"),this.currentPosition=t,this.focusCell(t,e),!0)},e.getUpdates=function(t){const e=[],s="across"===this.currentOrientation?"down":"across",o=this.cells[t.row][t.column].getClueId(s);if(o){const t=[].concat(...this.cells).filter((t=>t.getClueId(s)===o)).reduce(((t,e)=>t+(e.answer||" ")),"").replace(/[\s\uFEFF\xA0]+$/g,"");e.push({clueId:o,orientation:s,text:t})}const n=this.cells[t.row][t.column].getClueId(this.currentOrientation),i=[].concat(...this.cells).filter((t=>t.getClueId(this.currentOrientation)===n)).reduce(((t,e)=>t+(e.answer||" ")),"").replace(/[\s\uFEFF\xA0]+$/g,"");return e.push({clueId:n,orientation:this.currentOrientation,text:i}),e},e.getAnswers=function(){return[].concat(...this.cells).map((t=>t.getAnswer()))},e.setAnswers=function(t){[].concat(...this.cells).forEach(((e,s)=>{if(e.setAnswer(t[s]||""),e.getSolution()){const t=e.getInformation();this.callbacks.onInput({answer:t.answer,inputFieldUpdates:this.getUpdates(t.position),clueId:t.clueId,solutionWordId:t.solutionWordId||null,checkFilled:!0})}}))},e.getScore=function(){let t;return t=this.params.scoreWords?this.params.words.reduce(((t,e)=>t+this.getWordScore(e.clueId,e.orientation)),0):[].concat(...this.cells).reduce(((t,e)=>t+(e.getScore()||0)),0),Math.max(0,t)},e.getMaxScore=function(){return this.params.scoreWords?this.maxScore=this.params.words.length:this.maxScore=this.maxScore||[].concat(...this.cells).reduce(((t,e)=>t+(void 0!==e.getScore()?1:0)),0),this.maxScore},e.getWordScore=function(t){let e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"across";const s=this.getWordInformation(t,e),o=s.reduce(((t,e)=>{if(-1===t||-1===e.score)return-1;return t+(1===e.score||void 0===e.score?1:0)}),0);return-1===o?-1:o===s.length?1:0},e.setcurrentOrientation=function(t,e){if("across"!==t&&"down"!==t)return;if("number"!=typeof(e=e||this.currentPosition).row||"number"!=typeof e.column)return;if(e.row<0||e.row>this.params.dimensions.rows-1)return;if(e.column<0||e.column>this.params.dimensions.columns-1)return;if(!this.cells[e.row][e.column].getSolution())return;const s=e.column>0&&this.cells[e.row][e.column-1].getSolution(),o=e.column<this.params.dimensions.columns-1&&this.cells[e.row][e.column+1].getSolution(),n=e.row>0&&this.cells[e.row-1][e.column].getSolution(),i=e.row<this.params.dimensions.rows-1&&this.cells[e.row+1][e.column].getSolution();return"across"!==t||s||o?("down"!==t||n||i)&&(s||o||n||i)||(t="across"):t="down",this.currentOrientation=t,t},e.reset=function(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},e=!1;return[].concat(...this.cells).forEach((s=>{e=s.reset({keepCorrectAnswers:t.keepCorrectAnswers})||e})),this.currentPosition={},this.currentOrientation="across",this.maxScore=null,e},e.resize=function(){const t=this.content.clientWidth/this.params.dimensions.columns;return this.content.style.fontSize=t/2+"px",this.content.getBoundingClientRect()},e.handleCellClick=function(t){let e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];const s=this.cells[t.row][t.column];s.getSolution()&&(e||(s.getClueId("across")?this.currentPosition.row===t.row&&this.currentPosition.column===t.column&&"across"===this.currentOrientation?this.setcurrentOrientation("down",t):this.setcurrentOrientation("across",t):this.setcurrentOrientation("down",t)),this.currentPosition.row===t.row&&this.currentPosition.column===t.column||(this.currentPosition=t,this.moveTo(t,!0)))},e.handleCellFocus=function(t,e){this.cells[t.row][t.column].getSolution()&&(e.relatedTarget&&(e.relatedTarget.classList.contains("h5p-crossword-cell")||e.relatedTarget.classList.contains("h5p-crossword-cell-content"))||(this.setcurrentOrientation(this.currentOrientation,t),this.handleCellClick(t,!0,!1)))},e.handleCellKeyup=function(t){let e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];void 0===t.nextPositionOffset&&(t.nextPositionOffset=1),e||((!this.currentOrientation||"across"===this.currentOrientation)&&t.position.column+t.nextPositionOffset>=0&&t.position.column+t.nextPositionOffset<this.params.dimensions.columns&&this.cells[t.position.row][t.position.column+t.nextPositionOffset].getSolution()?(this.currentOrientation="across",this.focusCell({row:t.position.row,column:t.position.column+t.nextPositionOffset})):(!this.currentOrientation||"down"===this.currentOrientation)&&t.position.row+t.nextPositionOffset>=0&&t.position.row+t.nextPositionOffset<this.params.dimensions.rows&&this.cells[t.position.row+t.nextPositionOffset][t.position.column].getSolution()&&(this.currentOrientation="down",this.focusCell({row:t.position.row+t.nextPositionOffset,column:t.position.column}))),this.callbacks.onInput({answer:t.answer,inputFieldUpdates:this.getUpdates(t.position),clueId:t.clueId,solutionWordId:t.solutionWordId||null,checkFilled:!0},e)},e.showSolutions=function(){[].concat(...this.cells).forEach((t=>{t.showSolutions()}))},e.checkAnswerWords=function(){const t=this.params.words.map((t=>({clueId:t.clueId,orientation:t.orientation,answer:t.answer,score:this.getWordScore(t.clueId,t.orientation)})));return[].concat(...this.cells).forEach((t=>{t.checkAnswer()})),t},e.checkAnswer=function(){const t=[];return[].concat(...this.cells).forEach((e=>{e.checkAnswer();const s=e.getInformation();s.solution&&t.push(s)})),t},e.highlightWord=function(t){let e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"across";const s=this.cells[t.row][t.column].getClueId(e);if(!s)return;const o=this.params.words.filter((t=>t.clueId===s&&t.orientation===e))[0];[].concat(...this.cells).filter((t=>t.getClueId(e)===s)).forEach(((t,n)=>{const i=t.getPosition(),r={row:i.row,column:i.column,clueId:s,orientation:e,clue:o.clue,position:n,length:o.answer.length};t.setAriaLabel(this.buildAriaLabel(r)),t.highlight("normal")}))},e.buildAriaLabel=function(t){return`${`${this.params.a11y.row} ${t.row+1}, ${this.params.a11y.column} ${t.column+1}`}. ${`${t.clueId} ${this.params.a11y[t.orientation]}. ${t.clue}`}, ${`${this.params.a11y.letterSevenOfNine.replace("@position",t.position+1).replace("@length",t.length)}`}.`},e.getFocus=function(){return{position:this.currentPosition,orientation:this.currentOrientation}},e.getWordInformation=function(t){let e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"across";return t?[].concat(...this.cells).filter((s=>s.getClueId(e)===t)).map((t=>t.getInformation())):""},e.focusCell=function(t){let e=arguments.length>1&&void 0!==arguments[1]&&arguments[1];this.clearCellHighlights(),this.setcurrentOrientation(this.currentOrientation,t),this.highlightWord(t,this.currentOrientation),this.cells[t.row][t.column].highlight("focus"),this.callbacks.onFocus({clueId:this.cells[t.row][t.column].getClueId(this.currentOrientation),orientation:this.currentOrientation}),e||this.cells[t.row][t.column].focus()},e.clearCellHighlights=function(){[].concat(...this.cells).forEach((t=>{t.unhighlight()}))},e.fillGrid=function(t){let e=!1;const s=[].concat(...this.cells).filter((e=>e.getClueId(t.orientation)===t.clueId));if(s.forEach(((s,o)=>{const n=s.getAnswer();if(s.setAnswer(t.text[o]||"",-1!==t.readOffset&&o===t.cursorPosition-t.readOffset),e=e||n!==s.getAnswer(),s.getClueId("down")&&s.getClueId("across")){const e="across"===t.orientation?this.getWordInformation(s.getClueId("down"),"down"):this.getWordInformation(s.getClueId("across"),"across"),o=[{clueId:"across"===t.orientation?s.getClueId("down"):s.getClueId("across"),orientation:"across"===t.orientation?"down":"across",text:e.reduce(((t,e)=>`${t}${e.answer||" "}`),"")}];this.callbacks.onInput({inputFieldUpdates:o})}const i=s.getInformation();i.solutionWordId&&this.callbacks.onInput(i)})),t.cursorPosition<s.length){const e=s[t.cursorPosition].position;this.setcurrentOrientation(t.orientation,e),this.moveTo(e,!0)}this.callbacks.onInput({checkFilled:e})},e.enable=function(){[].concat(...this.cells).forEach((t=>{t.enable()})),this.disabled=!1},e.disable=function(){this.disabled=!0,[].concat(...this.cells).forEach((t=>{t.disable()}))},e.isFilled=function(){return![].concat(...this.cells).some((t=>!1===t.isFilled()))},e.unhighlight=function(){[].concat(...this.cells).forEach((t=>{t.unhighlight("focus"),t.unhighlight("normal"),this.params.instantFeedback||t.setSolutionState()}))},e.getXAPICorrectResponsesPattern=function(){return[`{case_matters=false}${this.params.words.map((t=>{const e=this.getWordInformation(t.clueId,t.orientation).map((t=>t.solution));return this.params.scoreWords?e.join(""):e.join("[,]")})).join("[,]")}`]},e.getXAPIResponse=function(){return this.params.words.map((t=>{const e=this.getWordInformation(t.clueId,t.orientation);return this.params.scoreWords?e.map((t=>t.answer||" ")).join(""):e.map((t=>t.answer||"")).join("[,]")})).join("[,]")},e.getXAPIDescription=function(){return this.params.words.map((e=>{const s=`${e.clueId} ${this.params.l10n[e.orientation]}: ${e.clue.replaceAll(/_{10,}/gi,"_________")}`,o=[];if(this.params.scoreWords)o.push(t.XAPI_PLACEHOLDER);else for(;o.length<e.answer.length;)o.push(t.XAPI_PLACEHOLDER);return`<p>${s}</ br>${o.join(" ")}</p>`})).join("")},t}();l.XAPI_PLACEHOLDER="__________";let a=function(){function t(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};this.solutionWord=s.toUpperCase(t.solutionWord.replace(/\s/g,""),s.UPPERCASE_EXCEPTIONS),this.scaleWidth=Math.max(t.tableWidth,this.solutionWord.length),this.cells=this.createCells(this.solutionWord),this.content=this.createSolution(this.cells)}var e=t.prototype;return e.getDOM=function(){return this.content},e.createSolution=function(t){const e=document.createElement("div");e.classList.add("h5p-crossword-solution-word-wrapper");const s=document.createElement("table");s.classList.add("h5p-crossword-solution-word"),s.setAttribute("aria-hidden",!0),e.appendChild(s);const o=document.createElement("tr");return t.forEach((t=>{o.appendChild(t.getDOM())})),s.appendChild(o),e},e.createCells=function(t){const e=s.createArray(t.length);return t.split("").forEach(((s,o)=>{e[o]=new r({width:100/t.length,solution:t[o],clueIdMarker:o+1}),e[o].disable()})),e},e.setCell=function(t,e){this.cells[t].setAnswer(e||"")},e.showSolutions=function(){this.cells.forEach((t=>{t.showSolutions()}))},e.reset=function(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};this.cells.forEach((e=>{t.keepCorrectAnswers&&"correct"===e.getSolutionState()||e.reset()}))},e.resize=function(){const t=this.content.clientWidth/this.scaleWidth;this.content.style.fontSize=t/2+"px",this.cells.forEach((e=>{e.setWidth(t)}))},t}(),c=function(){function t(e){this.params=s.extend({words:[{answer:"BAT",clue:"BAT"},{answer:"CAT",clue:"CAT"}],config:{poolSize:0}},e||{}),this.params.words=this.params.words.filter((t=>t.answer&&t.clue)).map((t=>{const e={answer:s.toUpperCase(t.answer,s.UPPERCASE_EXCEPTIONS),clue:t.clue,extraClue:t.extraClue};return t.fixWord&&void 0!==t.row&&void 0!==t.column&&void 0!==t.orientation&&(e.row=t.row-1,e.column=t.column-1,e.orientation=t.orientation),e})),this.indexChar={},this.badWords=[],this.cells=s.createArray(t.GRID_ROWS,t.GRID_COLUMNS),this.wordElements=this.createWordElements(this.params.words,this.params.config.poolSize)}var e=t.prototype;return e.getSquareGrid=function(){let t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:10,e=null,s=0;for(let o=0;o<t;o++){const t=this.getGrid();if(null===t)continue;const o=1*Math.min(t.length,t[0].length)/Math.max(t.length,t[0].length);if(o>s&&(e=t,s=o),1===s)break}return e},e.getGrid=function(){let t,e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:10;for(let s=0;s<e;s++){this.resetGrid();const e=this.wordElements.filter((t=>void 0!==t.row));if(e.length>0){if(e.forEach((t=>{if(!1===this.canPlaceAnswerAt(t.answer,{row:t.row,column:t.column,orientation:t.orientation})){return this.badWords.some((e=>Object.keys(e).every((s=>e[s]===t[s]))))||this.badWords.push(t),null}this.placeAnswerAt(t,{row:t.row,column:t.column,orientation:t.orientation})})),e.length>=this.params.config.poolSize||e.length===this.wordElements.length)return this.minimizeGrid()}else{let t=Math.floor(this.cells.length/2),e=Math.floor(this.cells[0].length/2);const s=this.wordElements[0],o=this.getRandomOrientation();if("across"===o?e-=Math.floor(s.answer.length/2):t-=Math.floor(s.answer.length/2),!1===this.canPlaceAnswerAt(s.answer,{row:t,column:e,orientation:o})){return this.badWords.some((t=>Object.keys(t).every((e=>t[e]===s[e]))))||this.badWords.push(s),null}this.placeAnswerAt(s,{row:t,column:e,orientation:o})}this.groups=[],e.length>0?this.groups.push(this.wordElements.slice(e.length)):this.groups.push(this.wordElements.slice(1));for(let e=0;e<this.groups.length;e++){t=!1;for(let s=0;s<this.groups[e].length;s++){const o=this.groups[e][s],n=this.findPositionForWord(o.answer);n?(this.placeAnswerAt(o,n),t=!0):(this.groups.length-1===e&&this.groups.push([]),this.groups[e+1].push(o))}if(!t)break}if(t)return this.minimizeGrid()}return this.badWords=this.groups[this.groups.length-1],null},e.getBadWords=function(){return this.badWords},e.getRandomOrientation=function(){return Math.floor(2*Math.random())?"across":"down"},e.minimizeGrid=function(){let e=t.GRID_ROWS-1,o=0,n=t.GRID_COLUMNS-1,i=0;for(let s=0;s<t.GRID_ROWS;s++)for(let r=0;r<t.GRID_COLUMNS;r++){null!==this.cells[s][r]&&(s<e&&(e=s),s>o&&(o=s),r<n&&(n=r),r>i&&(i=r))}const r=o-e+1,l=i-n+1,a=s.createArray(r,l);for(let t=e,s=0;s<r;t++,s++)for(let e=n,o=0;o<l;e++,o++)a[s][o]=this.cells[t][e];return a},e.addCellToGrid=function(t,e,s){const o=t.answer.charAt(s);null===this.cells[e.row][e.column]&&(this.cells[e.row][e.column]={char:o},this.indexChar[o]=this.indexChar[o]||[],this.indexChar[o].push({row:e.row,column:e.column})),this.cells[e.row][e.column][e.orientation]={isStartOfWord:0===s,index:t.index}},e.placeAnswerAt=function(t,e){if("across"===e.orientation)for(let s=e.column,o=0;s<e.column+t.answer.length;s++,o++)this.addCellToGrid(t,{row:e.row,column:s,orientation:e.orientation},o);else{if("down"!==e.orientation)throw"Invalid orientation";for(let s=e.row,o=0;s<e.row+t.answer.length;s++,o++)this.addCellToGrid(t,{row:s,column:e.column,orientation:e.orientation},o)}},e.canPlaceCharAt=function(t,e){return null===this.cells[e.row][e.column]?0:this.cells[e.row][e.column].char===t&&1},e.canPlaceAnswerAt=function(t,e){if(e.row<0||e.row>=this.cells.length||e.column<0||e.column>=this.cells[e.row].length)return!1;if("across"===e.orientation){for(let s=0;s<t.length;s++){const o=this.cells[e.row][e.column+s];if(!o||o.char!==t[s])break;if(s===t.length-1)return!1}if(e.column+t.length>this.cells[e.row].length)return!1;if(e.column-1>=0&&null!==this.cells[e.row][e.column-1])return!1;if(e.column+t.length<this.cells[e.row].length&&null!==this.cells[e.row][e.column+t.length])return!1;for(let s=e.row-1,o=e.column,n=0;s>=0&&o<e.column+t.length;o++,n++){const i=null===this.cells[s][o],r=null!==this.cells[e.row][o]&&this.cells[e.row][o].char===t.charAt(n);if(!i&&!r)return!1}for(let s=e.row+1,o=e.column,n=0;s<this.cells.length&&o<e.column+t.length;o++,n++){const i=null===this.cells[s][o],r=null!==this.cells[e.row][o]&&this.cells[e.row][o].char===t.charAt(n);if(!i&&!r)return!1}for(let s=e.column,o=0;s<e.column+t.length;s++,o++){if(!1===this.canPlaceCharAt(t.charAt(o),{row:e.row,column:s}))return!1}}else{if("down"!==e.orientation)throw"Invalid Orientation";for(let s=0;s<t.length;s++){const o=this.cells[e.row+s][e.column];if(!o||o.char!==t[s])break;if(s===t.length-1)return!1}if(e.row+t.length>this.cells.length)return!1;if(e.row-1>=0&&null!==this.cells[e.row-1][e.column])return!1;if(e.row+t.length<this.cells.length&&null!==this.cells[e.row+t.length][e.column])return!1;for(let s=e.column-1,o=e.row,n=0;s>=0&&o<e.row+t.length;o++,n++){const i=null===this.cells[o][s],r=null!==this.cells[o][e.column]&&this.cells[o][e.column].char===t.charAt(n);if(!(i||r))return!1}for(let s=e.column+1,o=e.row,n=0;o<e.row+t.length&&s<this.cells[o].length;o++,n++){const i=null===this.cells[o][s],r=null!==this.cells[o][e.column]&&this.cells[o][e.column].char===t.charAt(n);if(!(i||r))return!1}for(let s=e.row,o=0;s<e.row+t.length;s++,o++){if(!1===this.canPlaceCharAt(t.charAt(o,1),{row:s,column:e.column}))return!1}}return!0},e.findPositionForWord=function(t){const e=[];for(let s=0;s<t.length;s++){const o=this.indexChar[t.charAt(s)];if(o)for(let n=0;n<o.length;n++){const i=o[n],r=i.row,l=i.column,a=this.canPlaceAnswerAt(t,{row:r,column:l-s,orientation:"across"}),c=this.canPlaceAnswerAt(t,{row:r-s,column:l,orientation:"down"});!1!==a&&e.push({intersections:a,row:r,column:l-s,orientation:"across"}),!1!==c&&e.push({intersections:c,row:r-s,column:l,orientation:"down"})}}return 0!==e.length&&e[Math.floor(Math.random()*e.length)]},e.resetGrid=function(){for(let t=0;t<this.cells.length;t++)for(let e=0;e<this.cells[t].length;e++)this.cells[t][e]=null;this.indexChar={}},e.createWordElements=function(t,e){e="number"!=typeof e||0===e?null:Math.max(2,e);let o=t.map(((t,e)=>(t.index=e,t)));if(e){const t=o.filter((t=>void 0!==t.row)),n=s.shuffleArray(o.filter((t=>void 0===t.row)));n.splice(Math.max(0,e-t.length),n.length),o=t.concat(n)}return o.sort(((t,e)=>{const s=void 0!==t.row?1:0,o=void 0!==e.row?1:0;return s<o?1:s>o?-1:e.answer.length-t.answer.length}))},e.getWordElement=function(t,e){if("number"!=typeof t)return null;const s=this.wordElements.filter((e=>e.index===t));return s.length<1?null:"string"!=typeof e?s[0]:s[0][e]},e.export=function(t){const e=t.length,s=t[0].length,o=[];let n=1;for(let i=0;i<e;i++)for(let e=0;e<s;e++){const s=t[i][e];null!==s&&(s.down&&s.down.isStartOfWord&&o.push({clue:this.getWordElement(s.down.index,"clue"),answer:this.getWordElement(s.down.index,"answer"),extraClue:this.getWordElement(s.down.index,"extraClue"),startx:e+1,starty:i+1,orientation:"down",clueId:n}),s.across&&s.across.isStartOfWord&&o.push({clue:this.getWordElement(s.across.index,"clue"),answer:this.getWordElement(s.across.index,"answer"),extraClue:this.getWordElement(s.across.index,"extraClue"),startx:e+1,starty:i+1,orientation:"across",clueId:n}),(s.down&&s.down.isStartOfWord||s.across&&s.across.isStartOfWord)&&n++)}return{rows:e,cols:s,result:o}},t}();c.GRID_ROWS=100,c.GRID_COLUMNS=100;let h=function(){function e(){let e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},s=arguments.length>1?arguments[1]:void 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@clue\",\"letterSevenOfNine\":\"\\u0393\\u03c1\\u03ac\\u03bc\\u03bc\\u03b1 @position \\u03b1\\u03c0\\u03cc @length\",\"lettersWord\":\"\\u039b\\u03ad\\u03be\\u03b7 @length \\u03b3\\u03c1\\u03b1\\u03bc\\u03bc\\u03ac\\u03c4\\u03c9\\u03bd\",\"check\":\"\\u0395\\u03bb\\u03ad\\u03b3\\u03be\\u03c4\\u03b5 \\u03c4\\u03bf\\u03c5\\u03c2 \\u03c7\\u03b1\\u03c1\\u03b1\\u03ba\\u03c4\\u03ae\\u03c1\\u03b5\\u03c2. \\u039f\\u03b9 \\u03b1\\u03c0\\u03b1\\u03bd\\u03c4\\u03ae\\u03c3\\u03b5\\u03b9\\u03c2 \\u03b8\\u03b1 \\u03b5\\u03c0\\u03b9\\u03c3\\u03b7\\u03bc\\u03b1\\u03bd\\u03b8\\u03bf\\u03cd\\u03bd \\u03c9\\u03c2 \\u03c3\\u03c9\\u03c3\\u03c4\\u03ad\\u03c2, \\u03bb\\u03b1\\u03bd\\u03b8\\u03b1\\u03c3\\u03bc\\u03ad\\u03bd\\u03b5\\u03c2 \\u03ae \\u03b1\\u03bd\\u03b1\\u03c0\\u03ac\\u03bd\\u03c4\\u03b7\\u03c4\\u03b5\\u03c2.\",\"showSolution\":\"\\u0395\\u03bc\\u03c6\\u03ac\\u03bd\\u03b9\\u03c3\\u03b7 \\u03c4\\u03b7\\u03c2 \\u03bb\\u03cd\\u03c3\\u03b7\\u03c2. \\u03a4\\u03bf \\u03c3\\u03c4\\u03b1\\u03c5\\u03c1\\u03cc\\u03bb\\u03b5\\u03be\\u03bf \\u03b8\\u03b1 \\u03c3\\u03c5\\u03bc\\u03c0\\u03bb\\u03b7\\u03c1\\u03c9\\u03b8\\u03b5\\u03af \\u03bc\\u03b5 \\u03c4\\u03b7 \\u03c3\\u03c9\\u03c3\\u03c4\\u03ae \\u03bb\\u03cd\\u03c3\\u03b7 \\u03c4\\u03bf\\u03c5.\",\"retry\":\"\\u0395\\u03c0\\u03b1\\u03bd\\u03b1\\u03bb\\u03ac\\u03b2\\u03b5\\u03c4\\u03b5 \\u03c4\\u03b7\\u03bd \\u03b5\\u03c1\\u03b3\\u03b1\\u03c3\\u03af\\u03b1. \\u0395\\u03c0\\u03b1\\u03bd\\u03b1\\u03c6\\u03ad\\u03c1\\u03b5\\u03c4\\u03b5 \\u03cc\\u03bb\\u03b5\\u03c2 \\u03c4\\u03b9\\u03c2 \\u03b1\\u03c0\\u03b1\\u03bd\\u03c4\\u03ae\\u03c3\\u03b5\\u03b9\\u03c2 \\u03ba\\u03b1\\u03b9 \\u03be\\u03b5\\u03ba\\u03b9\\u03bd\\u03ae\\u03c3\\u03c4\\u03b5 \\u03c4\\u03b7\\u03bd \\u03b5\\u03c1\\u03b3\\u03b1\\u03c3\\u03af\\u03b1 \\u03be\\u03b1\\u03bd\\u03ac.\",\"yourResult\":\"\\u03a3\\u03c5\\u03b3\\u03ba\\u03b5\\u03bd\\u03c4\\u03c1\\u03ce\\u03c3\\u03b1\\u03c4\\u03b5 @score \\u03b1\\u03c0\\u03cc \\u03c4\\u03bf\\u03c5\\u03c2 @total \\u03b2\\u03b1\\u03b8\\u03bc\\u03bf\\u03cd\\u03c2.\"},\"taskDescription\":\"<p>\\u0391\\u03ba\\u03bf\\u03bb\\u03bf\\u03c5\\u03b8\\u03ae\\u03c3\\u03c4\\u03b5 \\u03c4\\u03b9\\u03c2 \\u03bf\\u03b4\\u03b7\\u03b3\\u03af\\u03b5\\u03c2 \\u03ba\\u03b1\\u03b9 \\u03c3\\u03c5\\u03bc\\u03c0\\u03bb\\u03b7\\u03c1\\u03ce\\u03c3\\u03c4\\u03b5 \\u03c4\\u03b1 \\u03ba\\u03b5\\u03bd\\u03ac \\u03c4\\u03bf\\u03c5 \\u03c3\\u03c4\\u03b1\\u03c5\\u03c1\\u03cc\\u03bb\\u03b5\\u03be\\u03bf\\u03c5 \\u03bc\\u03b5 \\u03c4\\u03b7\\u03bd \\u03ba\\u03b1\\u03c4\\u03ac\\u03bb\\u03bb\\u03b7\\u03bb\\u03b7 \\u03bb\\u03ad\\u03be\\u03b7 (\\u03bc\\u03b5\\u03c4\\u03bf\\u03c7\\u03ae) \\u03c0\\u03bf\\u03c5 \\u03b1\\u03c0\\u03bf\\u03c4\\u03c5\\u03c0\\u03ce\\u03bd\\u03b5\\u03b9 \\u03ba\\u03ac\\u03b8\\u03b5 \\u03c6\\u03bf\\u03c1\\u03ac \\u03ad\\u03bd\\u03b1 \\u03b1\\u03c0\\u03cc \\u03c4\\u03b1 \\u03c7\\u03b1\\u03c1\\u03b1\\u03ba\\u03c4\\u03b7\\u03c1\\u03b9\\u03c3\\u03c4\\u03b9\\u03ba\\u03ac \\u03c4\\u03bf\\u03c5 \\u03b3\\u03c1\\u03b1\\u03c0\\u03c4\\u03bf\\u03cd \\u03bb\\u03cc\\u03b3\\u03bf\\u03c5.<\\\/p>\\n\"}"}}});