material.js

/*!
 * Daemonite Material v4.1.1 (http://daemonite.github.io/material/)
 * Copyright 2011-2019 Daemon Pty Ltd
 * Licensed under MIT (https://github.com/Daemonite/material/blob/master/LICENSE)
 */

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('jquery')) :
  typeof define === 'function' && define.amd ? define(['exports', 'jquery'], factory) :
  (global = global || self, factory(global.material = {}, global.jQuery));
}(this, function (exports, $) { 'use strict';

  $ = $ && $.hasOwnProperty('default') ? $['default'] : $;

  /*
   * Expansion panel plugins expands a collapsed panel in full upon selecting
   */

  var ExpansionPanel = function ($) {
    // constants >>>
    var DATA_KEY = 'bs.collapse';
    var EVENT_KEY = "." + DATA_KEY;
    var ClassName = {
      SHOW: 'show',
      SHOW_PREDECESSOR: 'show-predecessor'
    };
    var Event = {
      HIDE: "hide" + EVENT_KEY,
      SHOW: "show" + EVENT_KEY
    };
    var Selector = {
      PANEL: '.expansion-panel',
      PANEL_BODY: '.expansion-panel .collapse' // <<< constants

    };
    $(document).on("" + Event.HIDE, Selector.PANEL_BODY, function () {
      var target = $(this).closest(Selector.PANEL);
      target.removeClass(ClassName.SHOW);
      var predecessor = target.prev(Selector.PANEL);

      if (predecessor.length) {
        predecessor.removeClass(ClassName.SHOW_PREDECESSOR);
      }
    }).on("" + Event.SHOW, Selector.PANEL_BODY, function () {
      var target = $(this).closest(Selector.PANEL);
      target.addClass(ClassName.SHOW);
      var predecessor = target.prev(Selector.PANEL);

      if (predecessor.length) {
        predecessor.addClass(ClassName.SHOW_PREDECESSOR);
      }
    });
  }($);

  /*
   * Floating label plugin moves inline label to float above the field
   * when a user engages with the assosciated text input field
   */

  var FloatingLabel = function ($) {
    // constants >>>
    var DATA_KEY = 'md.floatinglabel';
    var EVENT_KEY = "." + DATA_KEY;
    var NAME = 'floatinglabel';
    var NO_CONFLICT = $.fn[NAME];
    var ClassName = {
      IS_FOCUSED: 'is-focused',
      HAS_VALUE: 'has-value'
    };
    var Event = {
      CHANGE: "change" + EVENT_KEY,
      FOCUSIN: "focusin" + EVENT_KEY,
      FOCUSOUT: "focusout" + EVENT_KEY
    };
    var Selector = {
      DATA_PARENT: '.floating-label',
      DATA_TOGGLE: '.floating-label .custom-select, .floating-label .form-control' // <<< constants

    };

    var FloatingLabel =
    /*#__PURE__*/
    function () {
      function FloatingLabel(element) {
        this._element = element;
        this._parent = $(element).closest(Selector.DATA_PARENT)[0];
      }

      var _proto = FloatingLabel.prototype;

      _proto.change = function change() {
        if ($(this._element).val() || $(this._element).is('select') && $('option:first-child', $(this._element)).html().replace(' ', '') !== '') {
          $(this._parent).addClass(ClassName.HAS_VALUE);
        } else {
          $(this._parent).removeClass(ClassName.HAS_VALUE);
        }
      };

      _proto.focusin = function focusin() {
        $(this._parent).addClass(ClassName.IS_FOCUSED);
      };

      _proto.focusout = function focusout() {
        $(this._parent).removeClass(ClassName.IS_FOCUSED);
      };

      FloatingLabel._jQueryInterface = function _jQueryInterface(event) {
        return this.each(function () {
          var _event = event ? event : 'change';

          var data = $(this).data(DATA_KEY);

          if (!data) {
            data = new FloatingLabel(this);
            $(this).data(DATA_KEY, data);
          }

          if (typeof _event === 'string') {
            if (typeof data[_event] === 'undefined') {
              throw new Error("No method named \"" + _event + "\"");
            }

            data[_event]();
          }
        });
      };

      return FloatingLabel;
    }();

    $(document).on(Event.CHANGE + " " + Event.FOCUSIN + " " + Event.FOCUSOUT, Selector.DATA_TOGGLE, function (event) {
      FloatingLabel._jQueryInterface.call($(this), event.type);
    });
    $.fn[NAME] = FloatingLabel._jQueryInterface;
    $.fn[NAME].Constructor = FloatingLabel;

    $.fn[NAME].noConflict = function () {
      $.fn[NAME] = NO_CONFLICT;
      return FloatingLabel._jQueryInterface;
    };

    return FloatingLabel;
  }($);

  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }

  function _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }

    return obj;
  }

  function _objectSpread(target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i] != null ? arguments[i] : {};
      var ownKeys = Object.keys(source);

      if (typeof Object.getOwnPropertySymbols === 'function') {
        ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
        }));
      }

      ownKeys.forEach(function (key) {
        _defineProperty(target, key, source[key]);
      });
    }

    return target;
  }

  /*
   * Global util js
   * Based on Bootstrap's (v4.1.X) `util.js`
   */

  var Util = function ($) {
    var MAX_UID = 1000000;
    var MILLISECONDS_MULTIPLIER = 1000;
    var TRANSITION_END = 'transitionend';

    function getSpecialTransitionEndEvent() {
      return {
        bindType: TRANSITION_END,
        delegateType: TRANSITION_END,
        handle: function handle(event) {
          if ($(event.target).is(this)) {
            return event.handleObj.handler.apply(this, arguments); // eslint-disable-line prefer-rest-params
          }

          return undefined; // eslint-disable-line no-undefined
        }
      };
    }

    function setTransitionEndSupport() {
      $.fn.emulateTransitionEnd = transitionEndEmulator;
      $.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent();
    }

    function toType(obj) {
      return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
    }

    function transitionEndEmulator(duration) {
      var _this = this;

      var called = false;
      $(this).one(Util.TRANSITION_END, function () {
        called = true;
      });
      setTimeout(function () {
        if (!called) {
          Util.triggerTransitionEnd(_this);
        }
      }, duration);
      return this;
    }

    var Util = {
      TRANSITION_END: 'mdTransitionEnd',
      getSelectorFromElement: function getSelectorFromElement(element) {
        var selector = element.getAttribute('data-target');

        if (!selector || selector === '#') {
          selector = element.getAttribute('href') || '';
        }

        try {
          var $selector = $(document).find(selector);
          return $selector.length > 0 ? selector : null;
        } catch (err) {
          return null;
        }
      },
      getTransitionDurationFromElement: function getTransitionDurationFromElement(element) {
        if (!element) {
          return 0;
        }

        var transitionDuration = $(element).css('transition-duration');

        if (!transitionDuration) {
          return 0;
        }

        transitionDuration = transitionDuration.split(',')[0];
        return parseFloat(transitionDuration) * MILLISECONDS_MULTIPLIER;
      },
      getUID: function getUID(prefix) {
        do {
          // eslint-disable-next-line no-bitwise
          prefix += ~~(Math.random() * MAX_UID);
        } while (document.getElementById(prefix));

        return prefix;
      },
      isElement: function isElement(obj) {
        return (obj[0] || obj).nodeType;
      },
      reflow: function reflow(element) {
        return element.offsetHeight;
      },
      supportsTransitionEnd: function supportsTransitionEnd() {
        return Boolean(TRANSITION_END);
      },
      triggerTransitionEnd: function triggerTransitionEnd(element) {
        $(element).trigger(TRANSITION_END);
      },
      typeCheckConfig: function typeCheckConfig(componentName, config, configTypes) {
        for (var property in configTypes) {
          if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
            var expectedTypes = configTypes[property];
            var value = config[property];
            var valueType = value && Util.isElement(value) ? 'element' : toType(value);

            if (!new RegExp(expectedTypes).test(valueType)) {
              throw new Error(componentName.toUpperCase() + ": " + ("Option \"" + property + "\" provided type \"" + valueType + "\" ") + ("but expected type \"" + expectedTypes + "\"."));
            }
          }
        }
      }
    };
    setTransitionEndSupport();
    return Util;
  }($);

  /*
   * Navigation drawer plguin
   * Based on Bootstrap's (v4.1.X) `modal.js`
   */

  var NavDrawer = function ($) {
    // constants >>>
    var DATA_API_KEY = '.data-api';
    var DATA_KEY = 'md.navdrawer';
    var ESCAPE_KEYCODE = 27;
    var EVENT_KEY = "." + DATA_KEY;
    var NAME = 'navdrawer';
    var NO_CONFLICT = $.fn[NAME];
    var ClassName = {
      BACKDROP: 'navdrawer-backdrop',
      OPEN: 'navdrawer-open',
      SHOW: 'show'
    };
    var Default = {
      breakpoint: '',
      keyboard: true,
      show: true,
      type: 'default'
    };
    var DefaultType = {
      keyboard: 'boolean',
      show: 'boolean',
      type: 'string'
    };
    var Event = {
      CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY,
      CLICK_DISMISS: "click.dismiss" + EVENT_KEY,
      FOCUSIN: "focusin" + EVENT_KEY,
      HIDDEN: "hidden" + EVENT_KEY,
      HIDE: "hide" + EVENT_KEY,
      KEYDOWN_DISMISS: "keydown.dismiss" + EVENT_KEY,
      MOUSEDOWN_DISMISS: "mousedown.dismiss" + EVENT_KEY,
      MOUSEUP_DISMISS: "mouseup.dismiss" + EVENT_KEY,
      SHOW: "show" + EVENT_KEY,
      SHOWN: "shown" + EVENT_KEY
    };
    var Selector = {
      CONTENT: '.navdrawer-content',
      DATA_DISMISS: '[data-dismiss="navdrawer"]',
      DATA_TOGGLE: '[data-toggle="navdrawer"]' // <<< constants

    };

    var NavDrawer =
    /*#__PURE__*/
    function () {
      function NavDrawer(element, config) {
        this._backdrop = null;
        this._config = this._getConfig(config);
        this._content = $(element).find(Selector.CONTENT)[0];
        this._element = element;
        this._ignoreBackdropClick = false;
        this._isShown = false;
        this._typeBreakpoint = this._config.breakpoint === '' ? '' : "-" + this._config.breakpoint;
      }

      var _proto = NavDrawer.prototype;

      _proto.hide = function hide(event) {
        var _this = this;

        if (event) {
          event.preventDefault();
        }

        if (this._isTransitioning || !this._isShown) {
          return;
        }

        var hideEvent = $.Event(Event.HIDE);
        $(this._element).trigger(hideEvent);

        if (!this._isShown || hideEvent.isDefaultPrevented()) {
          return;
        }

        this._isShown = false;
        this._isTransitioning = true;

        this._setEscapeEvent();

        $(document).off(Event.FOCUSIN);
        $(document.body).removeClass(ClassName.OPEN + "-" + this._config.type + this._typeBreakpoint);
        $(this._element).removeClass(ClassName.SHOW);
        $(this._element).off(Event.CLICK_DISMISS);
        $(this._content).off(Event.MOUSEDOWN_DISMISS);
        var transitionDuration = Util.getTransitionDurationFromElement(this._content);
        $(this._content).one(Util.TRANSITION_END, function (event) {
          return _this._hideNavdrawer(event);
        }).emulateTransitionEnd(transitionDuration);

        this._showBackdrop();
      };

      _proto.show = function show(relatedTarget) {
        var _this2 = this;

        if (this._isTransitioning || this._isShown) {
          return;
        }

        this._isTransitioning = true;
        var showEvent = $.Event(Event.SHOW, {
          relatedTarget: relatedTarget
        });
        $(this._element).trigger(showEvent);

        if (this._isShown || showEvent.isDefaultPrevented()) {
          return;
        }

        this._isShown = true;

        this._setEscapeEvent();

        $(this._element).addClass(NAME + "-" + this._config.type + this._typeBreakpoint);
        $(this._element).on(Event.CLICK_DISMISS, Selector.DATA_DISMISS, function (event) {
          return _this2.hide(event);
        });
        $(this._content).on(Event.MOUSEDOWN_DISMISS, function () {
          $(_this2._element).one(Event.MOUSEUP_DISMISS, function (event) {
            if ($(event.target).is(_this2._element)) {
              _this2._ignoreBackdropClick = true;
            }
          });
        });

        this._showBackdrop();

        this._showElement(relatedTarget);
      };

      _proto.toggle = function toggle(relatedTarget) {
        return this._isShown ? this.hide() : this.show(relatedTarget);
      };

      _proto._enforceFocus = function _enforceFocus() {
        var _this3 = this;

        $(document).off(Event.FOCUSIN).on(Event.FOCUSIN, function (event) {
          if (document !== event.target && _this3._element !== event.target && $(_this3._element).has(event.target).length === 0) {
            _this3._element.focus();
          }
        });
      };

      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, Default, config);
        Util.typeCheckConfig(NAME, config, DefaultType);
        return config;
      };

      _proto._hideNavdrawer = function _hideNavdrawer() {
        this._element.style.display = 'none';

        this._element.setAttribute('aria-hidden', true);

        this._isTransitioning = false;
        $(this._element).trigger(Event.HIDDEN);
      };

      _proto._removeBackdrop = function _removeBackdrop() {
        if (this._backdrop) {
          $(this._backdrop).remove();
          this._backdrop = null;
        }
      };

      _proto._setEscapeEvent = function _setEscapeEvent() {
        var _this4 = this;

        if (this._isShown && this._config.keyboard) {
          $(this._element).on(Event.KEYDOWN_DISMISS, function (event) {
            if (event.which === ESCAPE_KEYCODE) {
              event.preventDefault();

              _this4.hide();
            }
          });
        } else if (!this._isShown) {
          $(this._element).off(Event.KEYDOWN_DISMISS);
        }
      };

      _proto._showBackdrop = function _showBackdrop() {
        var _this5 = this;

        if (this._isShown) {
          this._backdrop = document.createElement('div');
          $(this._backdrop).addClass(ClassName.BACKDROP).addClass(ClassName.BACKDROP + "-" + this._config.type + this._typeBreakpoint).appendTo(document.body);
          $(this._element).on(Event.CLICK_DISMISS, function (event) {
            if (_this5._ignoreBackdropClick) {
              _this5._ignoreBackdropClick = false;
              return;
            }

            if (event.target !== event.currentTarget) {
              return;
            }

            _this5.hide();
          });
          Util.reflow(this._backdrop);
          $(this._backdrop).addClass(ClassName.SHOW);
        } else if (!this._isShown && this._backdrop) {
          $(this._backdrop).removeClass(ClassName.SHOW);

          this._removeBackdrop();
        }
      };

      _proto._showElement = function _showElement(relatedTarget) {
        var _this6 = this;

        if (!this._element.parentNode || this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
          document.body.appendChild(this._element);
        }

        this._element.style.display = 'block';

        this._element.removeAttribute('aria-hidden');

        Util.reflow(this._element);
        $(document.body).addClass(ClassName.OPEN + "-" + this._config.type + this._typeBreakpoint);
        $(this._element).addClass(ClassName.SHOW);

        this._enforceFocus();

        var shownEvent = $.Event(Event.SHOWN, {
          relatedTarget: relatedTarget
        });

        var transitionComplete = function transitionComplete() {
          _this6._element.focus();

          _this6._isTransitioning = false;
          $(_this6._element).trigger(shownEvent);
        };

        var transitionDuration = Util.getTransitionDurationFromElement(this._content);
        $(this._content).one(Util.TRANSITION_END, transitionComplete).emulateTransitionEnd(transitionDuration);
      };

      NavDrawer._jQueryInterface = function _jQueryInterface(config, relatedTarget) {
        return this.each(function () {
          var _config = _objectSpread({}, Default, $(this).data(), typeof config === 'object' && config ? config : {});

          var data = $(this).data(DATA_KEY);

          if (!data) {
            data = new NavDrawer(this, _config);
            $(this).data(DATA_KEY, data);
          }

          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }

            data[config](relatedTarget);
          } else if (_config.show) {
            data.show(relatedTarget);
          }
        });
      };

      _createClass(NavDrawer, null, [{
        key: "Default",
        get: function get() {
          return Default;
        }
      }]);

      return NavDrawer;
    }();

    $(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
      var _this7 = this;

      var selector = Util.getSelectorFromElement(this);
      var target;

      if (selector) {
        target = $(selector)[0];
      }

      var config = $(target).data(DATA_KEY) ? 'toggle' : _objectSpread({}, $(target).data(), $(this).data());

      if (this.tagName === 'A' || this.tagName === 'AREA') {
        event.preventDefault();
      }

      var $target = $(target).one(Event.SHOW, function (showEvent) {
        if (showEvent.isDefaultPrevented()) {
          return;
        }

        $target.one(Event.HIDDEN, function () {
          if ($(_this7).is(':visible')) {
            _this7.focus();
          }
        });
      });

      NavDrawer._jQueryInterface.call($(target), config, this);
    });
    $.fn[NAME] = NavDrawer._jQueryInterface;
    $.fn[NAME].Constructor = NavDrawer;

    $.fn[NAME].noConflict = function () {
      $.fn[NAME] = NO_CONFLICT;
      return NavDrawer._jQueryInterface;
    };

    return NavDrawer;
  }($);

  function createCommonjsModule(fn, module) {
  	return module = { exports: {} }, fn(module, module.exports), module.exports;
  }

  var picker = createCommonjsModule(function (module, exports) {
  /*!
   * pickadate.js v3.6.3, 2019/04/03
   * By Amsul, http://amsul.ca
   * Hosted on http://amsul.github.io/pickadate.js
   * Licensed under MIT
   */

  (function ( factory ) {

      // AMD.
      module.exports = factory( $ );

  }(function( $ ) {

  var $window = $( window );
  var $document = $( document );
  var $html = $( document.documentElement );
  var supportsTransitions = document.documentElement.style.transition != null;


  /**
   * The picker constructor that creates a blank picker.
   */
  function PickerConstructor( ELEMENT, NAME, COMPONENT, OPTIONS ) {

      // If there’s no element, return the picker constructor.
      if ( !ELEMENT ) return PickerConstructor


      var
          IS_DEFAULT_THEME = false,


          // The state of the picker.
          STATE = {
              id: ELEMENT.id || 'P' + Math.abs( ~~(Math.random() * new Date()) ),
              handlingOpen: false,
          },


          // Merge the defaults and options passed.
          SETTINGS = COMPONENT ? $.extend( true, {}, COMPONENT.defaults, OPTIONS ) : OPTIONS || {},


          // Merge the default classes with the settings classes.
          CLASSES = $.extend( {}, PickerConstructor.klasses(), SETTINGS.klass ),


          // The element node wrapper into a jQuery object.
          $ELEMENT = $( ELEMENT ),


          // Pseudo picker constructor.
          PickerInstance = function() {
              return this.start()
          },


          // The picker prototype.
          P = PickerInstance.prototype = {

              constructor: PickerInstance,

              $node: $ELEMENT,


              /**
               * Initialize everything
               */
              start: function() {

                  // If it’s already started, do nothing.
                  if ( STATE && STATE.start ) return P


                  // Update the picker states.
                  STATE.methods = {};
                  STATE.start = true;
                  STATE.open = false;
                  STATE.type = ELEMENT.type;


                  // Confirm focus state, convert into text input to remove UA stylings,
                  // and set as readonly to prevent keyboard popup.
                  ELEMENT.autofocus = ELEMENT == getActiveElement();
                  ELEMENT.readOnly = !SETTINGS.editable;
                  ELEMENT.id = ELEMENT.id || STATE.id;
                  if ( ELEMENT.type != 'text' ) {
                      ELEMENT.type = 'text';
                  }


                  // Create a new picker component with the settings.
                  P.component = new COMPONENT(P, SETTINGS);


                  // Create the picker root and then prepare it.
                  P.$root = $( '<div class="' + CLASSES.picker + '" id="' + ELEMENT.id + '_root" />' );
                  prepareElementRoot();


                  // Create the picker holder and then prepare it.
                  P.$holder = $( createWrappedComponent() ).appendTo( P.$root );
                  prepareElementHolder();


                  // If there’s a format for the hidden input element, create the element.
                  if ( SETTINGS.formatSubmit ) {
                      prepareElementHidden();
                  }


                  // Prepare the input element.
                  prepareElement();


                  // Insert the hidden input as specified in the settings.
                  if ( SETTINGS.containerHidden ) $( SETTINGS.containerHidden ).append( P._hidden );
                  else $ELEMENT.after( P._hidden );


                  // Insert the root as specified in the settings.
                  if ( SETTINGS.container ) $( SETTINGS.container ).append( P.$root );
                  else $ELEMENT.after( P.$root );


                  // Bind the default component and settings events.
                  P.on({
                      start: P.component.onStart,
                      render: P.component.onRender,
                      stop: P.component.onStop,
                      open: P.component.onOpen,
                      close: P.component.onClose,
                      set: P.component.onSet
                  }).on({
                      start: SETTINGS.onStart,
                      render: SETTINGS.onRender,
                      stop: SETTINGS.onStop,
                      open: SETTINGS.onOpen,
                      close: SETTINGS.onClose,
                      set: SETTINGS.onSet
                  });


                  // Once we’re all set, check the theme in use.
                  IS_DEFAULT_THEME = isUsingDefaultTheme( P.$holder[0] );


                  // If the element has autofocus, open the picker.
                  if ( ELEMENT.autofocus ) {
                      P.open();
                  }


                  // Trigger queued the “start” and “render” events.
                  return P.trigger( 'start' ).trigger( 'render' )
              }, //start


              /**
               * Render a new picker
               */
              render: function( entireComponent ) {

                  // Insert a new component holder in the root or box.
                  if ( entireComponent ) {
                      P.$holder = $( createWrappedComponent() );
                      prepareElementHolder();
                      P.$root.html( P.$holder );
                  }
                  else P.$root.find( '.' + CLASSES.box ).html( P.component.nodes( STATE.open ) );

                  // Trigger the queued “render” events.
                  return P.trigger( 'render' )
              }, //render


              /**
               * Destroy everything
               */
              stop: function() {

                  // If it’s already stopped, do nothing.
                  if ( !STATE.start ) return P

                  // Then close the picker.
                  P.close();

                  // Remove the hidden field.
                  if ( P._hidden ) {
                      P._hidden.parentNode.removeChild( P._hidden );
                  }

                  // Remove the root.
                  P.$root.remove();

                  // Remove the input class, remove the stored data, and unbind
                  // the events (after a tick for IE - see `P.close`).
                  $ELEMENT.removeClass( CLASSES.input ).removeData( NAME );
                  setTimeout( function() {
                      $ELEMENT.off( '.' + STATE.id );
                  }, 0);

                  // Restore the element state
                  ELEMENT.type = STATE.type;
                  ELEMENT.readOnly = false;

                  // Trigger the queued “stop” events.
                  P.trigger( 'stop' );

                  // Reset the picker states.
                  STATE.methods = {};
                  STATE.start = false;

                  return P
              }, //stop


              /**
               * Open up the picker
               */
              open: function( dontGiveFocus ) {

                  // If it’s already open, do nothing.
                  if ( STATE.open ) return P

                  // Add the “active” class.
                  $ELEMENT.addClass( CLASSES.active );
                  aria( ELEMENT, 'expanded', true );

                  // * A Firefox bug, when `html` has `overflow:hidden`, results in
                  //   killing transitions :(. So add the “opened” state on the next tick.
                  //   Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=625289
                  setTimeout( function() {

                      // Add the “opened” class to the picker root.
                      P.$root.addClass( CLASSES.opened );
                      aria( P.$root[0], 'hidden', false );

                  }, 0 );

                  // If we have to give focus, bind the element and doc events.
                  if ( dontGiveFocus !== false ) {

                      // Set it as open.
                      STATE.open = true;

                      // Prevent the page from scrolling.
                      if ( IS_DEFAULT_THEME ) {
                          $('body').
                              css( 'overflow', 'hidden' ).
                              css( 'padding-right', '+=' + getScrollbarWidth() );
                      }

                      // Pass focus to the root element’s jQuery object.
                      focusPickerOnceOpened();

                      // Bind the document events.
                      $document.on( 'click.' + STATE.id + ' focusin.' + STATE.id, function( event ) {
                          // If the picker is currently midway through processing
                          // the opening sequence of events then don't handle clicks
                          // on any part of the DOM. This is caused by a bug in Chrome 73
                          // where a click event is being generated with the incorrect
                          // path in it.
                          // In short, if someone does a click that finishes after the
                          // new element is created then the path contains only the
                          // parent element and not the input element itself.
                          if (STATE.handlingOpen) {
                            return;
                          }

                          var target = getRealEventTarget( event, ELEMENT );

                          // If the target of the event is not the element, close the picker picker.
                          // * Don’t worry about clicks or focusins on the root because those don’t bubble up.
                          //   Also, for Firefox, a click on an `option` element bubbles up directly
                          //   to the doc. So make sure the target wasn't the doc.
                          // * In Firefox stopPropagation() doesn’t prevent right-click events from bubbling,
                          //   which causes the picker to unexpectedly close when right-clicking it. So make
                          //   sure the event wasn’t a right-click.
                          // * In Chrome 62 and up, password autofill causes a simulated focusin event which
                          //   closes the picker.
                          if ( ! event.isSimulated && target != ELEMENT && target != document && event.which != 3 ) {

                              // If the target was the holder that covers the screen,
                              // keep the element focused to maintain tabindex.
                              P.close( target === P.$holder[0] );
                          }

                      }).on( 'keydown.' + STATE.id, function( event ) {

                          var
                              // Get the keycode.
                              keycode = event.keyCode,

                              // Translate that to a selection change.
                              keycodeToMove = P.component.key[ keycode ],

                              // Grab the target.
                              target = getRealEventTarget( event, ELEMENT );


                          // On escape, close the picker and give focus.
                          if ( keycode == 27 ) {
                              P.close( true );
                          }


                          // Check if there is a key movement or “enter” keypress on the element.
                          else if ( target == P.$holder[0] && ( keycodeToMove || keycode == 13 ) ) {

                              // Prevent the default action to stop page movement.
                              event.preventDefault();

                              // Trigger the key movement action.
                              if ( keycodeToMove ) {
                                  PickerConstructor._.trigger( P.component.key.go, P, [ PickerConstructor._.trigger( keycodeToMove ) ] );
                              }

                              // On “enter”, if the highlighted item isn’t disabled, set the value and close.
                              else if ( !P.$root.find( '.' + CLASSES.highlighted ).hasClass( CLASSES.disabled ) ) {
                                  P.set( 'select', P.component.item.highlight );
                                  if ( SETTINGS.closeOnSelect ) {
                                      P.close( true );
                                  }
                              }
                          }


                          // If the target is within the root and “enter” is pressed,
                          // prevent the default action and trigger a click on the target instead.
                          else if ( $.contains( P.$root[0], target ) && keycode == 13 ) {
                              event.preventDefault();
                              target.click();
                          }
                      });
                  }

                  // Trigger the queued “open” events.
                  return P.trigger( 'open' )
              }, //open


              /**
               * Close the picker
               */
              close: function( giveFocus ) {

                  // If we need to give focus, do it before changing states.
                  if ( giveFocus ) {
                      if ( SETTINGS.editable ) {
                          ELEMENT.focus();
                      }
                      else {
                          // ....ah yes! It would’ve been incomplete without a crazy workaround for IE :|
                          // The focus is triggered *after* the close has completed - causing it
                          // to open again. So unbind and rebind the event at the next tick.
                          P.$holder.off( 'focus.toOpen' ).focus();
                          setTimeout( function() {
                              P.$holder.on( 'focus.toOpen', handleFocusToOpenEvent );
                          }, 0 );
                      }
                  }

                  // Remove the “active” class.
                  $ELEMENT.removeClass( CLASSES.active );
                  aria( ELEMENT, 'expanded', false );

                  // * A Firefox bug, when `html` has `overflow:hidden`, results in
                  //   killing transitions :(. So remove the “opened” state on the next tick.
                  //   Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=625289
                  setTimeout( function() {

                      // Remove the “opened” and “focused” class from the picker root.
                      P.$root.removeClass( CLASSES.opened + ' ' + CLASSES.focused );
                      aria( P.$root[0], 'hidden', true );

                  }, 0 );

                  // If it’s already closed, do nothing more.
                  if ( !STATE.open ) return P

                  // Set it as closed.
                  STATE.open = false;

                  // Allow the page to scroll.
                  if ( IS_DEFAULT_THEME ) {
                      $('body').
                          css( 'overflow', '' ).
                          css( 'padding-right', '-=' + getScrollbarWidth() );
                  }

                  // Unbind the document events.
                  $document.off( '.' + STATE.id );

                  // Trigger the queued “close” events.
                  return P.trigger( 'close' )
              }, //close


              /**
               * Clear the values
               */
              clear: function( options ) {
                  return P.set( 'clear', null, options )
              }, //clear


              /**
               * Set something
               */
              set: function( thing, value, options ) {

                  var thingItem, thingValue,
                      thingIsObject = $.isPlainObject( thing ),
                      thingObject = thingIsObject ? thing : {};

                  // Make sure we have usable options.
                  options = thingIsObject && $.isPlainObject( value ) ? value : options || {};

                  if ( thing ) {

                      // If the thing isn’t an object, make it one.
                      if ( !thingIsObject ) {
                          thingObject[ thing ] = value;
                      }

                      // Go through the things of items to set.
                      for ( thingItem in thingObject ) {

                          // Grab the value of the thing.
                          thingValue = thingObject[ thingItem ];

                          // First, if the item exists and there’s a value, set it.
                          if ( thingItem in P.component.item ) {
                              if ( thingValue === undefined ) thingValue = null;
                              P.component.set( thingItem, thingValue, options );
                          }

                          // Then, check to update the element value and broadcast a change.
                          if ( ( thingItem == 'select' || thingItem == 'clear' ) && SETTINGS.updateInput ) {
                              $ELEMENT.
                                  val( thingItem == 'clear' ? '' : P.get( thingItem, SETTINGS.format ) ).
                                  trigger( 'change' );
                          }
                      }

                      // Render a new picker.
                      P.render();
                  }

                  // When the method isn’t muted, trigger queued “set” events and pass the `thingObject`.
                  return options.muted ? P : P.trigger( 'set', thingObject )
              }, //set


              /**
               * Get something
               */
              get: function( thing, format ) {

                  // Make sure there’s something to get.
                  thing = thing || 'value';

                  // If a picker state exists, return that.
                  if ( STATE[ thing ] != null ) {
                      return STATE[ thing ]
                  }

                  // Return the submission value, if that.
                  if ( thing == 'valueSubmit' ) {
                      if ( P._hidden ) {
                          return P._hidden.value
                      }
                      thing = 'value';
                  }

                  // Return the value, if that.
                  if ( thing == 'value' ) {
                      return ELEMENT.value
                  }

                  // Check if a component item exists, return that.
                  if ( thing in P.component.item ) {
                      if ( typeof format == 'string' ) {
                          var thingValue = P.component.get( thing );
                          return thingValue ?
                              PickerConstructor._.trigger(
                                  P.component.formats.toString,
                                  P.component,
                                  [ format, thingValue ]
                              ) : ''
                      }
                      return P.component.get( thing )
                  }
              }, //get



              /**
               * Bind events on the things.
               */
              on: function( thing, method, internal ) {

                  var thingName, thingMethod,
                      thingIsObject = $.isPlainObject( thing ),
                      thingObject = thingIsObject ? thing : {};

                  if ( thing ) {

                      // If the thing isn’t an object, make it one.
                      if ( !thingIsObject ) {
                          thingObject[ thing ] = method;
                      }

                      // Go through the things to bind to.
                      for ( thingName in thingObject ) {

                          // Grab the method of the thing.
                          thingMethod = thingObject[ thingName ];

                          // If it was an internal binding, prefix it.
                          if ( internal ) {
                              thingName = '_' + thingName;
                          }

                          // Make sure the thing methods collection exists.
                          STATE.methods[ thingName ] = STATE.methods[ thingName ] || [];

                          // Add the method to the relative method collection.
                          STATE.methods[ thingName ].push( thingMethod );
                      }
                  }

                  return P
              }, //on



              /**
               * Unbind events on the things.
               */
              off: function() {
                  var i, thingName,
                      names = arguments;
                  for ( i = 0, namesCount = names.length; i < namesCount; i += 1 ) {
                      thingName = names[i];
                      if ( thingName in STATE.methods ) {
                          delete STATE.methods[thingName];
                      }
                  }
                  return P
              },


              /**
               * Fire off method events.
               */
              trigger: function( name, data ) {
                  var _trigger = function( name ) {
                      var methodList = STATE.methods[ name ];
                      if ( methodList ) {
                          methodList.map( function( method ) {
                              PickerConstructor._.trigger( method, P, [ data ] );
                          });
                      }
                  };
                  _trigger( '_' + name );
                  _trigger( name );
                  return P
              } //trigger
          }; //PickerInstance.prototype


      /**
       * Wrap the picker holder components together.
       */
      function createWrappedComponent() {

          // Create a picker wrapper holder
          return PickerConstructor._.node( 'div',

              // Create a picker wrapper node
              PickerConstructor._.node( 'div',

                  // Create a picker frame
                  PickerConstructor._.node( 'div',

                      // Create a picker box node
                      PickerConstructor._.node( 'div',

                          // Create the components nodes.
                          P.component.nodes( STATE.open ),

                          // The picker box class
                          CLASSES.box
                      ),

                      // Picker wrap class
                      CLASSES.wrap
                  ),

                  // Picker frame class
                  CLASSES.frame
              ),

              // Picker holder class
              CLASSES.holder,

              'tabindex="-1"'
          ) //endreturn
      } //createWrappedComponent

      /**
       * Prepare the input element with all bindings.
       */
      function prepareElement() {

          $ELEMENT.

              // Store the picker data by component name.
              data(NAME, P).

              // Add the “input” class name.
              addClass(CLASSES.input).

              // If there’s a `data-value`, update the value of the element.
              val( $ELEMENT.data('value') ?
                  P.get('select', SETTINGS.format) :
                  ELEMENT.value
              ).

              // On focus/click, open the picker.
              on( 'focus.' + STATE.id + ' click.' + STATE.id,
              debounce(function(event) {
                  event.preventDefault();
                  P.open();
              }, 100))

              // Mousedown handler to capture when the user starts interacting
              // with the picker. This is used in working around a bug in Chrome 73.
              .on('mousedown', function() {
                STATE.handlingOpen = true;
                var handler = function() {
                  // By default mouseup events are fired before a click event.
                  // By using a timeout we can force the mouseup to be handled
                  // after the corresponding click event is handled.
                  setTimeout(function() {
                    $(document).off('mouseup', handler);
                    STATE.handlingOpen = false;
                  }, 0);
                };
                $(document).on('mouseup', handler);
              });


          // Only bind keydown events if the element isn’t editable.
          if ( !SETTINGS.editable ) {

              $ELEMENT.

                  // Handle keyboard event based on the picker being opened or not.
                  on( 'keydown.' + STATE.id, handleKeydownEvent );
          }


          // Update the aria attributes.
          aria(ELEMENT, {
              haspopup: true,
              expanded: false,
              readonly: false,
              owns: ELEMENT.id + '_root'
          });
      }


      /**
       * Prepare the root picker element with all bindings.
       */
      function prepareElementRoot() {
          aria( P.$root[0], 'hidden', true );
      }


       /**
        * Prepare the holder picker element with all bindings.
        */
      function prepareElementHolder() {

          P.$holder.

              on({

                  // For iOS8.
                  keydown: handleKeydownEvent,

                  'focus.toOpen': handleFocusToOpenEvent,

                  blur: function() {
                      // Remove the “target” class.
                      $ELEMENT.removeClass( CLASSES.target );
                  },

                  // When something within the holder is focused, stop from bubbling
                  // to the doc and remove the “focused” state from the root.
                  focusin: function( event ) {
                      P.$root.removeClass( CLASSES.focused );
                      event.stopPropagation();
                  },

                  // When something within the holder is clicked, stop it
                  // from bubbling to the doc.
                  'mousedown click': function( event ) {

                      var target = getRealEventTarget( event, ELEMENT );

                      // Make sure the target isn’t the root holder so it can bubble up.
                      if ( target != P.$holder[0] ) {

                          event.stopPropagation();

                          // * For mousedown events, cancel the default action in order to
                          //   prevent cases where focus is shifted onto external elements
                          //   when using things like jQuery mobile or MagnificPopup (ref: #249 & #120).
                          //   Also, for Firefox, don’t prevent action on the `option` element.
                          if ( event.type == 'mousedown' && !$( target ).is( 'input, select, textarea, button, option' )) {

                              event.preventDefault();

                              // Re-focus onto the holder so that users can click away
                              // from elements focused within the picker.
                              P.$holder.eq(0).focus();
                          }
                      }
                  }

              }).

              // If there’s a click on an actionable element, carry out the actions.
              on( 'click', '[data-pick], [data-nav], [data-clear], [data-close]', function() {

                  var $target = $( this ),
                      targetData = $target.data(),
                      targetDisabled = $target.hasClass( CLASSES.navDisabled ) || $target.hasClass( CLASSES.disabled ),

                      // * For IE, non-focusable elements can be active elements as well
                      //   (http://stackoverflow.com/a/2684561).
                      activeElement = getActiveElement();
                      activeElement = activeElement && ( (activeElement.type || activeElement.href ) ? activeElement : null);

                  // If it’s disabled or nothing inside is actively focused, re-focus the element.
                  if ( targetDisabled || activeElement && !$.contains( P.$root[0], activeElement ) ) {
                      P.$holder.eq(0).focus();
                  }

                  // If something is superficially changed, update the `highlight` based on the `nav`.
                  if ( !targetDisabled && targetData.nav ) {
                      P.set( 'highlight', P.component.item.highlight, { nav: targetData.nav } );
                  }

                  // If something is picked, set `select` then close with focus.
                  else if ( !targetDisabled && 'pick' in targetData ) {
                      P.set( 'select', targetData.pick );
                      if ( SETTINGS.closeOnSelect ) {
                          P.close( true );
                      }
                  }

                  // If a “clear” button is pressed, empty the values and close with focus.
                  else if ( targetData.clear ) {
                      P.clear();
                      if ( SETTINGS.closeOnClear ) {
                          P.close( true );
                      }
                  }

                  else if ( targetData.close ) {
                      P.close( true );
                  }

              }); //P.$holder

      }


       /**
        * Prepare the hidden input element along with all bindings.
        */
      function prepareElementHidden() {

          var name;

          if ( SETTINGS.hiddenName === true ) {
              name = ELEMENT.name;
              ELEMENT.name = '';
          }
          else {
              name = [
                  typeof SETTINGS.hiddenPrefix == 'string' ? SETTINGS.hiddenPrefix : '',
                  typeof SETTINGS.hiddenSuffix == 'string' ? SETTINGS.hiddenSuffix : '_submit'
              ];
              name = name[0] + ELEMENT.name + name[1];
          }

          P._hidden = $(
              '<input ' +
              'type=hidden ' +

              // Create the name using the original input’s with a prefix and suffix.
              'name="' + name + '"' +

              // If the element has a value, set the hidden value as well.
              (
                  $ELEMENT.data('value') || ELEMENT.value ?
                      ' value="' + P.get('select', SETTINGS.formatSubmit) + '"' :
                      ''
              ) +
              '>'
          )[0];

          $ELEMENT.

              // If the value changes, update the hidden input with the correct format.
              on('change.' + STATE.id, function() {
                  P._hidden.value = ELEMENT.value ?
                      P.get('select', SETTINGS.formatSubmit) :
                      '';
              });
      }


      // Wait for transitions to end before focusing the holder. Otherwise, while
      // using the `container` option, the view jumps to the container.
      function focusPickerOnceOpened() {

          if (IS_DEFAULT_THEME && supportsTransitions) {
              P.$holder.find('.' + CLASSES.frame).one('transitionend', function() {
                  P.$holder.eq(0).focus();
              });
          }
          else {
              setTimeout(function() {
                  P.$holder.eq(0).focus();
              }, 0);
          }
      }


      function handleFocusToOpenEvent(event) {

          // Stop the event from propagating to the doc.
          event.stopPropagation();

          // Add the “target” class.
          $ELEMENT.addClass( CLASSES.target );

          // Add the “focused” class to the root.
          P.$root.addClass( CLASSES.focused );

          // And then finally open the picker.
          P.open();
      }


      // For iOS8.
      function handleKeydownEvent( event ) {

          var keycode = event.keyCode,

              // Check if one of the delete keys was pressed.
              isKeycodeDelete = /^(8|46)$/.test(keycode);

          // For some reason IE clears the input value on “escape”.
          if ( keycode == 27 ) {
              P.close( true );
              return false
          }

          // Check if `space` or `delete` was pressed or the picker is closed with a key movement.
          if ( keycode == 32 || isKeycodeDelete || !STATE.open && P.component.key[keycode] ) {

              // Prevent it from moving the page and bubbling to doc.
              event.preventDefault();
              event.stopPropagation();

              // If `delete` was pressed, clear the values and close the picker.
              // Otherwise open the picker.
              if ( isKeycodeDelete ) { P.clear().close(); }
              else { P.open(); }
          }
      }


      // Return a new picker instance.
      return new PickerInstance()
  } //PickerConstructor



  /**
   * The default classes and prefix to use for the HTML classes.
   */
  PickerConstructor.klasses = function( prefix ) {
      prefix = prefix || 'picker';
      return {

          picker: prefix,
          opened: prefix + '--opened',
          focused: prefix + '--focused',

          input: prefix + '__input',
          active: prefix + '__input--active',
          target: prefix + '__input--target',

          holder: prefix + '__holder',

          frame: prefix + '__frame',
          wrap: prefix + '__wrap',

          box: prefix + '__box'
      }
  }; //PickerConstructor.klasses



  /**
   * Check if the default theme is being used.
   */
  function isUsingDefaultTheme( element ) {

      var theme,
          prop = 'position';

      // For IE.
      if ( element.currentStyle ) {
          theme = element.currentStyle[prop];
      }

      // For normal browsers.
      else if ( window.getComputedStyle ) {
          theme = getComputedStyle( element )[prop];
      }

      return theme == 'fixed'
  }



  /**
   * Get the width of the browser’s scrollbar.
   * Taken from: https://github.com/VodkaBears/Remodal/blob/master/src/jquery.remodal.js
   */
  function getScrollbarWidth() {

      if ( $html.height() <= $window.height() ) {
          return 0
      }

      var $outer = $( '<div style="visibility:hidden;width:100px" />' ).
          appendTo( 'body' );

      // Get the width without scrollbars.
      var widthWithoutScroll = $outer[0].offsetWidth;

      // Force adding scrollbars.
      $outer.css( 'overflow', 'scroll' );

      // Add the inner div.
      var $inner = $( '<div style="width:100%" />' ).appendTo( $outer );

      // Get the width with scrollbars.
      var widthWithScroll = $inner[0].offsetWidth;

      // Remove the divs.
      $outer.remove();

      // Return the difference between the widths.
      return widthWithoutScroll - widthWithScroll
  }



  /**
   * Get the target element from the event.
   * If ELEMENT is supplied and present in the event path (ELEMENT is ancestor of the target),
   * returns ELEMENT instead
   */
  function getRealEventTarget( event, ELEMENT ) {

      var path = [];

      if ( event.path ) {
          path = event.path;
      }

      if ( event.originalEvent && event.originalEvent.path ) {
          path = event.originalEvent.path;
      }

      if ( path && path.length > 0 ) {
          if ( ELEMENT && path.indexOf( ELEMENT ) >= 0 ) {
              return ELEMENT
          } else {
              return path[0]
          }
      }

      return event.target
  }

  // taken from https://davidwalsh.name/javascript-debounce-function
  function debounce(func, wait, immediate) {
      var timeout;
      return function() {
          var context = this, args = arguments;
          var later = function() {
              timeout = null;
              if (!immediate) func.apply(context, args);
          };
          var callNow = immediate && !timeout;
          clearTimeout(timeout);
          timeout = setTimeout(later, wait);
          if (callNow) func.apply(context, args);
      };
  }

  /**
   * PickerConstructor helper methods.
   */
  PickerConstructor._ = {

      /**
       * Create a group of nodes. Expects:
       * `
          {
              min:    {Integer},
              max:    {Integer},
              i:      {Integer},
              node:   {String},
              item:   {Function}
          }
       * `
       */
      group: function( groupObject ) {

          var
              // Scope for the looped object
              loopObjectScope,

              // Create the nodes list
              nodesList = '',

              // The counter starts from the `min`
              counter = PickerConstructor._.trigger( groupObject.min, groupObject );


          // Loop from the `min` to `max`, incrementing by `i`
          for ( ; counter <= PickerConstructor._.trigger( groupObject.max, groupObject, [ counter ] ); counter += groupObject.i ) {

              // Trigger the `item` function within scope of the object
              loopObjectScope = PickerConstructor._.trigger( groupObject.item, groupObject, [ counter ] );

              // Splice the subgroup and create nodes out of the sub nodes
              nodesList += PickerConstructor._.node(
                  groupObject.node,
                  loopObjectScope[ 0 ],   // the node
                  loopObjectScope[ 1 ],   // the classes
                  loopObjectScope[ 2 ]    // the attributes
              );
          }

          // Return the list of nodes
          return nodesList
      }, //group


      /**
       * Create a dom node string
       */
      node: function( wrapper, item, klass, attribute ) {

          // If the item is false-y, just return an empty string
          if ( !item ) return ''

          // If the item is an array, do a join
          item = $.isArray( item ) ? item.join( '' ) : item;

          // Check for the class
          klass = klass ? ' class="' + klass + '"' : '';

          // Check for any attributes
          attribute = attribute ? ' ' + attribute : '';

          // Return the wrapped item
          return '<' + wrapper + klass + attribute + '>' + item + '</' + wrapper + '>'
      }, //node


      /**
       * Lead numbers below 10 with a zero.
       */
      lead: function( number ) {
          return ( number < 10 ? '0': '' ) + number
      },


      /**
       * Trigger a function otherwise return the value.
       */
      trigger: function( callback, scope, args ) {
          return typeof callback == 'function' ? callback.apply( scope, args || [] ) : callback
      },


      /**
       * If the second character is a digit, length is 2 otherwise 1.
       */
      digits: function( string ) {
          return ( /\d/ ).test( string[ 1 ] ) ? 2 : 1
      },


      /**
       * Tell if something is a date object.
       */
      isDate: function( value ) {
          return {}.toString.call( value ).indexOf( 'Date' ) > -1 && this.isInteger( value.getDate() )
      },


      /**
       * Tell if something is an integer.
       */
      isInteger: function( value ) {
          return {}.toString.call( value ).indexOf( 'Number' ) > -1 && value % 1 === 0
      },


      /**
       * Create ARIA attribute strings.
       */
      ariaAttr: ariaAttr
  }; //PickerConstructor._



  /**
   * Extend the picker with a component and defaults.
   */
  PickerConstructor.extend = function( name, Component ) {

      // Extend jQuery.
      $.fn[ name ] = function( options, action ) {

          // Grab the component data.
          var componentData = this.data( name );

          // If the picker is requested, return the data object.
          if ( options == 'picker' ) {
              return componentData
          }

          // If the component data exists and `options` is a string, carry out the action.
          if ( componentData && typeof options == 'string' ) {
              return PickerConstructor._.trigger( componentData[ options ], componentData, [ action ] )
          }

          // Otherwise go through each matched element and if the component
          // doesn’t exist, create a new picker using `this` element
          // and merging the defaults and options with a deep copy.
          return this.each( function() {
              var $this = $( this );
              if ( !$this.data( name ) ) {
                  new PickerConstructor( this, name, Component, options );
              }
          })
      };

      // Set the defaults.
      $.fn[ name ].defaults = Component.defaults;
  }; //PickerConstructor.extend



  function aria(element, attribute, value) {
      if ( $.isPlainObject(attribute) ) {
          for ( var key in attribute ) {
              ariaSet(element, key, attribute[key]);
          }
      }
      else {
          ariaSet(element, attribute, value);
      }
  }
  function ariaSet(element, attribute, value) {
      element.setAttribute(
          (attribute == 'role' ? '' : 'aria-') + attribute,
          value
      );
  }
  function ariaAttr(attribute, data) {
      if ( !$.isPlainObject(attribute) ) {
          attribute = { attribute: data };
      }
      data = '';
      for ( var key in attribute ) {
          var attr = (key == 'role' ? '' : 'aria-') + key,
              attrVal = attribute[key];
          data += attrVal == null ? '' : attr + '="' + attribute[key] + '"';
      }
      return data
  }

  // IE8 bug throws an error for activeElements within iframes.
  function getActiveElement() {
      try {
          return document.activeElement
      } catch ( err ) { }
  }



  // Expose the picker constructor.
  return PickerConstructor


  }));
  });

  var picker_date = createCommonjsModule(function (module, exports) {
  /*!
   * Date picker for pickadate.js v3.6.3
   * http://amsul.github.io/pickadate.js/date.htm
   */

  (function ( factory ) {

      // AMD.
      module.exports = factory( picker, $ );

  }(function( Picker, $ ) {


  /**
   * Globals and constants
   */
  var DAYS_IN_WEEK = 7,
      WEEKS_IN_CALENDAR = 6,
      _ = Picker._;



  /**
   * The date picker constructor
   */
  function DatePicker( picker, settings ) {

      var calendar = this,
          element = picker.$node[ 0 ],
          elementValue = element.value,
          elementDataValue = picker.$node.data( 'value' ),
          valueString = elementDataValue || elementValue,
          formatString = elementDataValue ? settings.formatSubmit : settings.format,
          isRTL = function() {

              return element.currentStyle ?

                  // For IE.
                  element.currentStyle.direction == 'rtl' :

                  // For normal browsers.
                  getComputedStyle( picker.$root[0] ).direction == 'rtl'
          };

      calendar.settings = settings;
      calendar.$node = picker.$node;

      // The queue of methods that will be used to build item objects.
      calendar.queue = {
          min: 'measure create',
          max: 'measure create',
          now: 'now create',
          select: 'parse create validate',
          highlight: 'parse navigate create validate',
          view: 'parse create validate viewset',
          disable: 'deactivate',
          enable: 'activate'
      };

      // The component's item object.
      calendar.item = {};

      calendar.item.clear = null;
      calendar.item.disable = ( settings.disable || [] ).slice( 0 );
      calendar.item.enable = -(function( collectionDisabled ) {
          return collectionDisabled[ 0 ] === true ? collectionDisabled.shift() : -1
      })( calendar.item.disable );

      calendar.
          set( 'min', settings.min ).
          set( 'max', settings.max ).
          set( 'now' );

      // When there’s a value, set the `select`, which in turn
      // also sets the `highlight` and `view`.
      if ( valueString ) {
          calendar.set( 'select', valueString, {
              format: formatString,
              defaultValue: true
          });
      }

      // If there’s no value, default to highlighting “today”.
      else {
          calendar.
              set( 'select', null ).
              set( 'highlight', calendar.item.now );
      }


      // The keycode to movement mapping.
      calendar.key = {
          40: 7, // Down
          38: -7, // Up
          39: function() { return isRTL() ? -1 : 1 }, // Right
          37: function() { return isRTL() ? 1 : -1 }, // Left
          go: function( timeChange ) {
              var highlightedObject = calendar.item.highlight,
                  targetDate = new Date( highlightedObject.year, highlightedObject.month, highlightedObject.date + timeChange );
              calendar.set(
                  'highlight',
                  targetDate,
                  { interval: timeChange }
              );
              this.render();
          }
      };


      // Bind some picker events.
      picker.
          on( 'render', function() {
              picker.$root.find( '.' + settings.klass.selectMonth ).on( 'change', function() {
                  var value = this.value;
                  if ( value ) {
                      picker.set( 'highlight', [ picker.get( 'view' ).year, value, picker.get( 'highlight' ).date ] );
                      picker.$root.find( '.' + settings.klass.selectMonth ).trigger( 'focus' );
                  }
              });
              picker.$root.find( '.' + settings.klass.selectYear ).on( 'change', function() {
                  var value = this.value;
                  if ( value ) {
                      picker.set( 'highlight', [ value, picker.get( 'view' ).month, picker.get( 'highlight' ).date ] );
                      picker.$root.find( '.' + settings.klass.selectYear ).trigger( 'focus' );
                  }
              });
          }, 1 ).
          on( 'open', function() {
              var includeToday = '';
              if ( calendar.disabled( calendar.get('now') ) ) {
                  includeToday = ':not(.' + settings.klass.buttonToday + ')';
              }
              picker.$root.find( 'button' + includeToday + ', select' ).attr( 'disabled', false );
          }, 1 ).
          on( 'close', function() {
              picker.$root.find( 'button, select' ).attr( 'disabled', true );
          }, 1 );

  } //DatePicker


  /**
   * Set a datepicker item object.
   */
  DatePicker.prototype.set = function( type, value, options ) {

      var calendar = this,
          calendarItem = calendar.item;

      // If the value is `null` just set it immediately.
      if ( value === null ) {
          if ( type == 'clear' ) type = 'select';
          calendarItem[ type ] = value;
          return calendar
      }

      // Otherwise go through the queue of methods, and invoke the functions.
      // Update this as the time unit, and set the final value as this item.
      // * In the case of `enable`, keep the queue but set `disable` instead.
      //   And in the case of `flip`, keep the queue but set `enable` instead.
      calendarItem[ ( type == 'enable' ? 'disable' : type == 'flip' ? 'enable' : type ) ] = calendar.queue[ type ].split( ' ' ).map( function( method ) {
          value = calendar[ method ]( type, value, options );
          return value
      }).pop();

      // Check if we need to cascade through more updates.
      if ( type == 'select' ) {
          calendar.set( 'highlight', calendarItem.select, options );
      }
      else if ( type == 'highlight' ) {
          calendar.set( 'view', calendarItem.highlight, options );
      }
      else if ( type.match( /^(flip|min|max|disable|enable)$/ ) ) {
          if ( calendarItem.select && calendar.disabled( calendarItem.select ) ) {
              calendar.set( 'select', calendarItem.select, options );
          }
          if ( calendarItem.highlight && calendar.disabled( calendarItem.highlight ) ) {
              calendar.set( 'highlight', calendarItem.highlight, options );
          }
      }

      return calendar
  }; //DatePicker.prototype.set


  /**
   * Get a datepicker item object.
   */
  DatePicker.prototype.get = function( type ) {
      return this.item[ type ]
  }; //DatePicker.prototype.get


  /**
   * Create a picker date object.
   */
  DatePicker.prototype.create = function( type, value, options ) {

      var isInfiniteValue,
          calendar = this;

      // If there’s no value, use the type as the value.
      value = value === undefined ? type : value;


      // If it’s infinity, update the value.
      if ( value == -Infinity || value == Infinity ) {
          isInfiniteValue = value;
      }

      // If it’s an object, use the native date object.
      else if ( $.isPlainObject( value ) && _.isInteger( value.pick ) ) {
          value = value.obj;
      }

      // If it’s an array, convert it into a date and make sure
      // that it’s a valid date – otherwise default to today.
      else if ( $.isArray( value ) ) {
          value = new Date( value[ 0 ], value[ 1 ], value[ 2 ] );
          value = _.isDate( value ) ? value : calendar.create().obj;
      }

      // If it’s a number or date object, make a normalized date.
      else if ( _.isInteger( value ) || _.isDate( value ) ) {
          value = calendar.normalize( new Date( value ), options );
      }

      // If it’s a literal true or any other case, set it to now.
      else /*if ( value === true )*/ {
          value = calendar.now( type, value, options );
      }

      // Return the compiled object.
      return {
          year: isInfiniteValue || value.getFullYear(),
          month: isInfiniteValue || value.getMonth(),
          date: isInfiniteValue || value.getDate(),
          day: isInfiniteValue || value.getDay(),
          obj: isInfiniteValue || value,
          pick: isInfiniteValue || value.getTime()
      }
  }; //DatePicker.prototype.create


  /**
   * Create a range limit object using an array, date object,
   * literal “true”, or integer relative to another time.
   */
  DatePicker.prototype.createRange = function( from, to ) {

      var calendar = this,
          createDate = function( date ) {
              if ( date === true || $.isArray( date ) || _.isDate( date ) ) {
                  return calendar.create( date )
              }
              return date
          };

      // Create objects if possible.
      if ( !_.isInteger( from ) ) {
          from = createDate( from );
      }
      if ( !_.isInteger( to ) ) {
          to = createDate( to );
      }

      // Create relative dates.
      if ( _.isInteger( from ) && $.isPlainObject( to ) ) {
          from = [ to.year, to.month, to.date + from ];
      }
      else if ( _.isInteger( to ) && $.isPlainObject( from ) ) {
          to = [ from.year, from.month, from.date + to ];
      }

      return {
          from: createDate( from ),
          to: createDate( to )
      }
  }; //DatePicker.prototype.createRange


  /**
   * Check if a date unit falls within a date range object.
   */
  DatePicker.prototype.withinRange = function( range, dateUnit ) {
      range = this.createRange(range.from, range.to);
      return dateUnit.pick >= range.from.pick && dateUnit.pick <= range.to.pick
  };


  /**
   * Check if two date range objects overlap.
   */
  DatePicker.prototype.overlapRanges = function( one, two ) {

      var calendar = this;

      // Convert the ranges into comparable dates.
      one = calendar.createRange( one.from, one.to );
      two = calendar.createRange( two.from, two.to );

      return calendar.withinRange( one, two.from ) || calendar.withinRange( one, two.to ) ||
          calendar.withinRange( two, one.from ) || calendar.withinRange( two, one.to )
  };


  /**
   * Get the date today.
   */
  DatePicker.prototype.now = function( type, value, options ) {
      value = new Date();
      if ( options && options.rel ) {
          value.setDate( value.getDate() + options.rel );
      }
      return this.normalize( value, options )
  };


  /**
   * Navigate to next/prev month.
   */
  DatePicker.prototype.navigate = function( type, value, options ) {

      var targetDateObject,
          targetYear,
          targetMonth,
          targetDate,
          isTargetArray = $.isArray( value ),
          isTargetObject = $.isPlainObject( value ),
          viewsetObject = this.item.view;/*,
          safety = 100*/


      if ( isTargetArray || isTargetObject ) {

          if ( isTargetObject ) {
              targetYear = value.year;
              targetMonth = value.month;
              targetDate = value.date;
          }
          else {
              targetYear = +value[0];
              targetMonth = +value[1];
              targetDate = +value[2];
          }

          // If we’re navigating months but the view is in a different
          // month, navigate to the view’s year and month.
          if ( options && options.nav && viewsetObject && viewsetObject.month !== targetMonth ) {
              targetYear = viewsetObject.year;
              targetMonth = viewsetObject.month;
          }

          // Figure out the expected target year and month.
          targetDateObject = new Date( targetYear, targetMonth + ( options && options.nav ? options.nav : 0 ), 1 );
          targetYear = targetDateObject.getFullYear();
          targetMonth = targetDateObject.getMonth();

          // If the month we’re going to doesn’t have enough days,
          // keep decreasing the date until we reach the month’s last date.
          while ( /*safety &&*/ new Date( targetYear, targetMonth, targetDate ).getMonth() !== targetMonth ) {
              targetDate -= 1;
              /*safety -= 1
              if ( !safety ) {
                  throw 'Fell into an infinite loop while navigating to ' + new Date( targetYear, targetMonth, targetDate ) + '.'
              }*/
          }

          value = [ targetYear, targetMonth, targetDate ];
      }

      return value
  }; //DatePicker.prototype.navigate


  /**
   * Normalize a date by setting the hours to midnight.
   */
  DatePicker.prototype.normalize = function( value/*, options*/ ) {
      value.setHours( 0, 0, 0, 0 );
      return value
  };


  /**
   * Measure the range of dates.
   */
  DatePicker.prototype.measure = function( type, value/*, options*/ ) {

      var calendar = this;
      
      // If it's an integer, get a date relative to today.
      if ( _.isInteger( value ) ) {
          value = calendar.now( type, value, { rel: value } );
      }

      // If it’s anything false-y, remove the limits.
      else if ( !value ) {
          value = type == 'min' ? -Infinity : Infinity;
      }

      // If it’s a string, parse it.
      else if ( typeof value == 'string' ) {
          value = calendar.parse( type, value );
      }

      return value
  }; ///DatePicker.prototype.measure


  /**
   * Create a viewset object based on navigation.
   */
  DatePicker.prototype.viewset = function( type, dateObject/*, options*/ ) {
      return this.create([ dateObject.year, dateObject.month, 1 ])
  };


  /**
   * Validate a date as enabled and shift if needed.
   */
  DatePicker.prototype.validate = function( type, dateObject, options ) {

      var calendar = this,

          // Keep a reference to the original date.
          originalDateObject = dateObject,

          // Make sure we have an interval.
          interval = options && options.interval ? options.interval : 1,

          // Check if the calendar enabled dates are inverted.
          isFlippedBase = calendar.item.enable === -1,

          // Check if we have any enabled dates after/before now.
          hasEnabledBeforeTarget, hasEnabledAfterTarget,

          // The min & max limits.
          minLimitObject = calendar.item.min,
          maxLimitObject = calendar.item.max,

          // Check if we’ve reached the limit during shifting.
          reachedMin, reachedMax,

          // Check if the calendar is inverted and at least one weekday is enabled.
          hasEnabledWeekdays = isFlippedBase && calendar.item.disable.filter( function( value ) {

              // If there’s a date, check where it is relative to the target.
              if ( $.isArray( value ) ) {
                  var dateTime = calendar.create( value ).pick;
                  if ( dateTime < dateObject.pick ) hasEnabledBeforeTarget = true;
                  else if ( dateTime > dateObject.pick ) hasEnabledAfterTarget = true;
              }

              // Return only integers for enabled weekdays.
              return _.isInteger( value )
          }).length;/*,

          safety = 100*/



      // Cases to validate for:
      // [1] Not inverted and date disabled.
      // [2] Inverted and some dates enabled.
      // [3] Not inverted and out of range.
      //
      // Cases to **not** validate for:
      // • Navigating months.
      // • Not inverted and date enabled.
      // • Inverted and all dates disabled.
      // • ..and anything else.
      if ( !options || (!options.nav && !options.defaultValue) ) if (
          /* 1 */ ( !isFlippedBase && calendar.disabled( dateObject ) ) ||
          /* 2 */ ( isFlippedBase && calendar.disabled( dateObject ) && ( hasEnabledWeekdays || hasEnabledBeforeTarget || hasEnabledAfterTarget ) ) ||
          /* 3 */ ( !isFlippedBase && (dateObject.pick <= minLimitObject.pick || dateObject.pick >= maxLimitObject.pick) )
      ) {


          // When inverted, flip the direction if there aren’t any enabled weekdays
          // and there are no enabled dates in the direction of the interval.
          if ( isFlippedBase && !hasEnabledWeekdays && ( ( !hasEnabledAfterTarget && interval > 0 ) || ( !hasEnabledBeforeTarget && interval < 0 ) ) ) {
              interval *= -1;
          }


          // Keep looping until we reach an enabled date.
          while ( /*safety &&*/ calendar.disabled( dateObject ) ) {

              /*safety -= 1
              if ( !safety ) {
                  throw 'Fell into an infinite loop while validating ' + dateObject.obj + '.'
              }*/


              // If we’ve looped into the next/prev month with a large interval, return to the original date and flatten the interval.
              if ( Math.abs( interval ) > 1 && ( dateObject.month < originalDateObject.month || dateObject.month > originalDateObject.month ) ) {
                  dateObject = originalDateObject;
                  interval = interval > 0 ? 1 : -1;
              }


              // If we’ve reached the min/max limit, reverse the direction, flatten the interval and set it to the limit.
              if ( dateObject.pick <= minLimitObject.pick ) {
                  reachedMin = true;
                  interval = 1;
                  dateObject = calendar.create([
                      minLimitObject.year,
                      minLimitObject.month,
                      minLimitObject.date + (dateObject.pick === minLimitObject.pick ? 0 : -1)
                  ]);
              }
              else if ( dateObject.pick >= maxLimitObject.pick ) {
                  reachedMax = true;
                  interval = -1;
                  dateObject = calendar.create([
                      maxLimitObject.year,
                      maxLimitObject.month,
                      maxLimitObject.date + (dateObject.pick === maxLimitObject.pick ? 0 : 1)
                  ]);
              }


              // If we’ve reached both limits, just break out of the loop.
              if ( reachedMin && reachedMax ) {
                  break
              }


              // Finally, create the shifted date using the interval and keep looping.
              dateObject = calendar.create([ dateObject.year, dateObject.month, dateObject.date + interval ]);
          }

      } //endif


      // Return the date object settled on.
      return dateObject
  }; //DatePicker.prototype.validate


  /**
   * Check if a date is disabled.
   */
  DatePicker.prototype.disabled = function( dateToVerify ) {

      var
          calendar = this,

          // Filter through the disabled dates to check if this is one.
          isDisabledMatch = calendar.item.disable.filter( function( dateToDisable ) {

              // If the date is a number, match the weekday with 0index and `firstDay` check.
              if ( _.isInteger( dateToDisable ) ) {
                  return dateToVerify.day === ( calendar.settings.firstDay ? dateToDisable : dateToDisable - 1 ) % 7
              }

              // If it’s an array or a native JS date, create and match the exact date.
              if ( $.isArray( dateToDisable ) || _.isDate( dateToDisable ) ) {
                  return dateToVerify.pick === calendar.create( dateToDisable ).pick
              }

              // If it’s an object, match a date within the “from” and “to” range.
              if ( $.isPlainObject( dateToDisable ) ) {
                  return calendar.withinRange( dateToDisable, dateToVerify )
              }
          });

      // If this date matches a disabled date, confirm it’s not inverted.
      isDisabledMatch = isDisabledMatch.length && !isDisabledMatch.filter(function( dateToDisable ) {
          return $.isArray( dateToDisable ) && dateToDisable[3] == 'inverted' ||
              $.isPlainObject( dateToDisable ) && dateToDisable.inverted
      }).length;

      // Check the calendar “enabled” flag and respectively flip the
      // disabled state. Then also check if it’s beyond the min/max limits.
      return calendar.item.enable === -1 ? !isDisabledMatch : isDisabledMatch ||
          dateToVerify.pick < calendar.item.min.pick ||
          dateToVerify.pick > calendar.item.max.pick

  }; //DatePicker.prototype.disabled


  /**
   * Parse a string into a usable type.
   */
  DatePicker.prototype.parse = function( type, value, options ) {

      var calendar = this,
          parsingObject = {};

      // If it’s already parsed, we’re good.
      if ( !value || typeof value != 'string' ) {
          return value
      }

      // We need a `.format` to parse the value with.
      if ( !( options && options.format ) ) {
          options = options || {};
          options.format = calendar.settings.format;
      }

      // Convert the format into an array and then map through it.
      calendar.formats.toArray( options.format ).map( function( label ) {

          var
              // Grab the formatting label.
              formattingLabel = calendar.formats[ label ],

              // The format length is from the formatting label function or the
              // label length without the escaping exclamation (!) mark.
              formatLength = formattingLabel ? _.trigger( formattingLabel, calendar, [ value, parsingObject ] ) : label.replace( /^!/, '' ).length;

          // If there's a format label, split the value up to the format length.
          // Then add it to the parsing object with appropriate label.
          if ( formattingLabel ) {
              parsingObject[ label ] = value.substr( 0, formatLength );
          }

          // Update the value as the substring from format length to end.
          value = value.substr( formatLength );
      });

      // Compensate for month 0index.
      return [
          parsingObject.yyyy || parsingObject.yy,
          +( parsingObject.mm || parsingObject.m ) - 1,
          parsingObject.dd || parsingObject.d
      ]
  }; //DatePicker.prototype.parse


  /**
   * Various formats to display the object in.
   */
  DatePicker.prototype.formats = (function() {

      // Return the length of the first word in a collection.
      function getWordLengthFromCollection( string, collection, dateObject ) {

          // Grab the first word from the string.
          // Regex pattern from http://stackoverflow.com/q/150033
          var word = string.match( /[^\x00-\x7F]+|\w+/ )[ 0 ];

          // If there's no month index, add it to the date object
          if ( !dateObject.mm && !dateObject.m ) {
              dateObject.m = collection.indexOf( word ) + 1;
          }

          // Return the length of the word.
          return word.length
      }

      // Get the length of the first word in a string.
      function getFirstWordLength( string ) {
          return string.match( /\w+/ )[ 0 ].length
      }

      return {

          d: function( string, dateObject ) {

              // If there's string, then get the digits length.
              // Otherwise return the selected date.
              return string ? _.digits( string ) : dateObject.date
          },
          dd: function( string, dateObject ) {

              // If there's a string, then the length is always 2.
              // Otherwise return the selected date with a leading zero.
              return string ? 2 : _.lead( dateObject.date )
          },
          ddd: function( string, dateObject ) {

              // If there's a string, then get the length of the first word.
              // Otherwise return the short selected weekday.
              return string ? getFirstWordLength( string ) : this.settings.weekdaysShort[ dateObject.day ]
          },
          dddd: function( string, dateObject ) {

              // If there's a string, then get the length of the first word.
              // Otherwise return the full selected weekday.
              return string ? getFirstWordLength( string ) : this.settings.weekdaysFull[ dateObject.day ]
          },
          m: function( string, dateObject ) {

              // If there's a string, then get the length of the digits
              // Otherwise return the selected month with 0index compensation.
              return string ? _.digits( string ) : dateObject.month + 1
          },
          mm: function( string, dateObject ) {

              // If there's a string, then the length is always 2.
              // Otherwise return the selected month with 0index and leading zero.
              return string ? 2 : _.lead( dateObject.month + 1 )
          },
          mmm: function( string, dateObject ) {

              var collection = this.settings.monthsShort;

              // If there's a string, get length of the relevant month from the short
              // months collection. Otherwise return the selected month from that collection.
              return string ? getWordLengthFromCollection( string, collection, dateObject ) : collection[ dateObject.month ]
          },
          mmmm: function( string, dateObject ) {

              var collection = this.settings.monthsFull;

              // If there's a string, get length of the relevant month from the full
              // months collection. Otherwise return the selected month from that collection.
              return string ? getWordLengthFromCollection( string, collection, dateObject ) : collection[ dateObject.month ]
          },
          yy: function( string, dateObject ) {

              // If there's a string, then the length is always 2.
              // Otherwise return the selected year by slicing out the first 2 digits.
              return string ? 2 : ( '' + dateObject.year ).slice( 2 )
          },
          yyyy: function( string, dateObject ) {

              // If there's a string, then the length is always 4.
              // Otherwise return the selected year.
              return string ? 4 : dateObject.year
          },

          // Create an array by splitting the formatting string passed.
          toArray: function( formatString ) { return formatString.split( /(d{1,4}|m{1,4}|y{4}|yy|!.)/g ) },

          // Format an object into a string using the formatting options.
          toString: function ( formatString, itemObject ) {
              var calendar = this;
              return calendar.formats.toArray( formatString ).map( function( label ) {
                  return _.trigger( calendar.formats[ label ], calendar, [ 0, itemObject ] ) || label.replace( /^!/, '' )
              }).join( '' )
          }
      }
  })(); //DatePicker.prototype.formats




  /**
   * Check if two date units are the exact.
   */
  DatePicker.prototype.isDateExact = function( one, two ) {

      var calendar = this;

      // When we’re working with weekdays, do a direct comparison.
      if (
          ( _.isInteger( one ) && _.isInteger( two ) ) ||
          ( typeof one == 'boolean' && typeof two == 'boolean' )
       ) {
          return one === two
      }

      // When we’re working with date representations, compare the “pick” value.
      if (
          ( _.isDate( one ) || $.isArray( one ) ) &&
          ( _.isDate( two ) || $.isArray( two ) )
      ) {
          return calendar.create( one ).pick === calendar.create( two ).pick
      }

      // When we’re working with range objects, compare the “from” and “to”.
      if ( $.isPlainObject( one ) && $.isPlainObject( two ) ) {
          return calendar.isDateExact( one.from, two.from ) && calendar.isDateExact( one.to, two.to )
      }

      return false
  };


  /**
   * Check if two date units overlap.
   */
  DatePicker.prototype.isDateOverlap = function( one, two ) {

      var calendar = this,
          firstDay = calendar.settings.firstDay ? 1 : 0;

      // When we’re working with a weekday index, compare the days.
      if ( _.isInteger( one ) && ( _.isDate( two ) || $.isArray( two ) ) ) {
          one = one % 7 + firstDay;
          return one === calendar.create( two ).day + 1
      }
      if ( _.isInteger( two ) && ( _.isDate( one ) || $.isArray( one ) ) ) {
          two = two % 7 + firstDay;
          return two === calendar.create( one ).day + 1
      }

      // When we’re working with range objects, check if the ranges overlap.
      if ( $.isPlainObject( one ) && $.isPlainObject( two ) ) {
          return calendar.overlapRanges( one, two )
      }

      return false
  };


  /**
   * Flip the “enabled” state.
   */
  DatePicker.prototype.flipEnable = function(val) {
      var itemObject = this.item;
      itemObject.enable = val || (itemObject.enable == -1 ? 1 : -1);
  };


  /**
   * Mark a collection of dates as “disabled”.
   */
  DatePicker.prototype.deactivate = function( type, datesToDisable ) {

      var calendar = this,
          disabledItems = calendar.item.disable.slice(0);


      // If we’re flipping, that’s all we need to do.
      if ( datesToDisable == 'flip' ) {
          calendar.flipEnable();
      }

      else if ( datesToDisable === false ) {
          calendar.flipEnable(1);
          disabledItems = [];
      }

      else if ( datesToDisable === true ) {
          calendar.flipEnable(-1);
          disabledItems = [];
      }

      // Otherwise go through the dates to disable.
      else {

          datesToDisable.map(function( unitToDisable ) {

              var matchFound;

              // When we have disabled items, check for matches.
              // If something is matched, immediately break out.
              for ( var index = 0; index < disabledItems.length; index += 1 ) {
                  if ( calendar.isDateExact( unitToDisable, disabledItems[index] ) ) {
                      matchFound = true;
                      break
                  }
              }

              // If nothing was found, add the validated unit to the collection.
              if ( !matchFound ) {
                  if (
                      _.isInteger( unitToDisable ) ||
                      _.isDate( unitToDisable ) ||
                      $.isArray( unitToDisable ) ||
                      ( $.isPlainObject( unitToDisable ) && unitToDisable.from && unitToDisable.to )
                  ) {
                      disabledItems.push( unitToDisable );
                  }
              }
          });
      }

      // Return the updated collection.
      return disabledItems
  }; //DatePicker.prototype.deactivate


  /**
   * Mark a collection of dates as “enabled”.
   */
  DatePicker.prototype.activate = function( type, datesToEnable ) {

      var calendar = this,
          disabledItems = calendar.item.disable,
          disabledItemsCount = disabledItems.length;

      // If we’re flipping, that’s all we need to do.
      if ( datesToEnable == 'flip' ) {
          calendar.flipEnable();
      }

      else if ( datesToEnable === true ) {
          calendar.flipEnable(1);
          disabledItems = [];
      }

      else if ( datesToEnable === false ) {
          calendar.flipEnable(-1);
          disabledItems = [];
      }

      // Otherwise go through the disabled dates.
      else {

          datesToEnable.map(function( unitToEnable ) {

              var matchFound,
                  disabledUnit,
                  index,
                  isExactRange;

              // Go through the disabled items and try to find a match.
              for ( index = 0; index < disabledItemsCount; index += 1 ) {

                  disabledUnit = disabledItems[index];

                  // When an exact match is found, remove it from the collection.
                  if ( calendar.isDateExact( disabledUnit, unitToEnable ) ) {
                      matchFound = disabledItems[index] = null;
                      isExactRange = true;
                      break
                  }

                  // When an overlapped match is found, add the “inverted” state to it.
                  else if ( calendar.isDateOverlap( disabledUnit, unitToEnable ) ) {
                      if ( $.isPlainObject( unitToEnable ) ) {
                          unitToEnable.inverted = true;
                          matchFound = unitToEnable;
                      }
                      else if ( $.isArray( unitToEnable ) ) {
                          matchFound = unitToEnable;
                          if ( !matchFound[3] ) matchFound.push( 'inverted' );
                      }
                      else if ( _.isDate( unitToEnable ) ) {
                          matchFound = [ unitToEnable.getFullYear(), unitToEnable.getMonth(), unitToEnable.getDate(), 'inverted' ];
                      }
                      break
                  }
              }

              // If a match was found, remove a previous duplicate entry.
              if ( matchFound ) for ( index = 0; index < disabledItemsCount; index += 1 ) {
                  if ( calendar.isDateExact( disabledItems[index], unitToEnable ) ) {
                      disabledItems[index] = null;
                      break
                  }
              }

              // In the event that we’re dealing with an exact range of dates,
              // make sure there are no “inverted” dates because of it.
              if ( isExactRange ) for ( index = 0; index < disabledItemsCount; index += 1 ) {
                  if ( calendar.isDateOverlap( disabledItems[index], unitToEnable ) ) {
                      disabledItems[index] = null;
                      break
                  }
              }

              // If something is still matched, add it into the collection.
              if ( matchFound ) {
                  disabledItems.push( matchFound );
              }
          });
      }

      // Return the updated collection.
      return disabledItems.filter(function( val ) { return val != null })
  }; //DatePicker.prototype.activate


  /**
   * Create a string for the nodes in the picker.
   */
  DatePicker.prototype.nodes = function( isOpen ) {

      var
          calendar = this,
          settings = calendar.settings,
          calendarItem = calendar.item,
          nowObject = calendarItem.now,
          selectedObject = calendarItem.select,
          highlightedObject = calendarItem.highlight,
          viewsetObject = calendarItem.view,
          disabledCollection = calendarItem.disable,
          minLimitObject = calendarItem.min,
          maxLimitObject = calendarItem.max,


          // Create the calendar table head using a copy of weekday labels collection.
          // * We do a copy so we don't mutate the original array.
          tableHead = (function( collection, fullCollection ) {

              // If the first day should be Monday, move Sunday to the end.
              if ( settings.firstDay ) {
                  collection.push( collection.shift() );
                  fullCollection.push( fullCollection.shift() );
              }

              // Create and return the table head group.
              return _.node(
                  'thead',
                  _.node(
                      'tr',
                      _.group({
                          min: 0,
                          max: DAYS_IN_WEEK - 1,
                          i: 1,
                          node: 'th',
                          item: function( counter ) {
                              return [
                                  collection[ counter ],
                                  settings.klass.weekdays,
                                  'scope=col title="' + fullCollection[ counter ] + '"'
                              ]
                          }
                      })
                  )
              ) //endreturn
          })( ( settings.showWeekdaysFull ? settings.weekdaysFull : settings.weekdaysShort ).slice( 0 ), settings.weekdaysFull.slice( 0 ) ), //tableHead


          // Create the nav for next/prev month.
          createMonthNav = function( next ) {

              // Otherwise, return the created month tag.
              return _.node(
                  'div',
                  ' ',
                  settings.klass[ 'nav' + ( next ? 'Next' : 'Prev' ) ] + (

                      // If the focused month is outside the range, disabled the button.
                      ( next && viewsetObject.year >= maxLimitObject.year && viewsetObject.month >= maxLimitObject.month ) ||
                      ( !next && viewsetObject.year <= minLimitObject.year && viewsetObject.month <= minLimitObject.month ) ?
                      ' ' + settings.klass.navDisabled : ''
                  ),
                  'data-nav=' + ( next || -1 ) + ' ' +
                  _.ariaAttr({
                      role: 'button',
                      controls: calendar.$node[0].id + '_table'
                  }) + ' ' +
                  'title="' + (next ? settings.labelMonthNext : settings.labelMonthPrev ) + '"'
              ) //endreturn
          }, //createMonthNav


          // Create the month label.
          createMonthLabel = function() {

              var monthsCollection = settings.showMonthsShort ? settings.monthsShort : settings.monthsFull;

              // If there are months to select, add a dropdown menu.
              if ( settings.selectMonths ) {

                  return _.node( 'select',
                      _.group({
                          min: 0,
                          max: 11,
                          i: 1,
                          node: 'option',
                          item: function( loopedMonth ) {

                              return [

                                  // The looped month and no classes.
                                  monthsCollection[ loopedMonth ], 0,

                                  // Set the value and selected index.
                                  'value=' + loopedMonth +
                                  ( viewsetObject.month == loopedMonth ? ' selected' : '' ) +
                                  (
                                      (
                                          ( viewsetObject.year == minLimitObject.year && loopedMonth < minLimitObject.month ) ||
                                          ( viewsetObject.year == maxLimitObject.year && loopedMonth > maxLimitObject.month )
                                      ) ?
                                      ' disabled' : ''
                                  )
                              ]
                          }
                      }),
                      settings.klass.selectMonth,
                      ( isOpen ? '' : 'disabled' ) + ' ' +
                      _.ariaAttr({ controls: calendar.$node[0].id + '_table' }) + ' ' +
                      'title="' + settings.labelMonthSelect + '"'
                  )
              }

              // If there's a need for a month selector
              return _.node( 'div', monthsCollection[ viewsetObject.month ], settings.klass.month )
          }, //createMonthLabel


          // Create the year label.
          createYearLabel = function() {

              var focusedYear = viewsetObject.year,

              // If years selector is set to a literal "true", set it to 5. Otherwise
              // divide in half to get half before and half after focused year.
              numberYears = settings.selectYears === true ? 5 : ~~( settings.selectYears / 2 );

              // If there are years to select, add a dropdown menu.
              if ( numberYears ) {

                  var
                      minYear = minLimitObject.year,
                      maxYear = maxLimitObject.year,
                      lowestYear = focusedYear - numberYears,
                      highestYear = focusedYear + numberYears;

                  // If the min year is greater than the lowest year, increase the highest year
                  // by the difference and set the lowest year to the min year.
                  if ( minYear > lowestYear ) {
                      highestYear += minYear - lowestYear;
                      lowestYear = minYear;
                  }

                  // If the max year is less than the highest year, decrease the lowest year
                  // by the lower of the two: available and needed years. Then set the
                  // highest year to the max year.
                  if ( maxYear < highestYear ) {

                      var availableYears = lowestYear - minYear,
                          neededYears = highestYear - maxYear;

                      lowestYear -= availableYears > neededYears ? neededYears : availableYears;
                      highestYear = maxYear;
                  }

                  return _.node( 'select',
                      _.group({
                          min: lowestYear,
                          max: highestYear,
                          i: 1,
                          node: 'option',
                          item: function( loopedYear ) {
                              return [

                                  // The looped year and no classes.
                                  loopedYear, 0,

                                  // Set the value and selected index.
                                  'value=' + loopedYear + ( focusedYear == loopedYear ? ' selected' : '' )
                              ]
                          }
                      }),
                      settings.klass.selectYear,
                      ( isOpen ? '' : 'disabled' ) + ' ' + _.ariaAttr({ controls: calendar.$node[0].id + '_table' }) + ' ' +
                      'title="' + settings.labelYearSelect + '"'
                  )
              }

              // Otherwise just return the year focused
              return _.node( 'div', focusedYear, settings.klass.year )
          }; //createYearLabel


      // Create and return the entire calendar.
      return _.node(
          'div',
          ( settings.selectYears ? createYearLabel() + createMonthLabel() : createMonthLabel() + createYearLabel() ) +
          createMonthNav() + createMonthNav( 1 ),
          settings.klass.header
      ) + _.node(
          'table',
          tableHead +
          _.node(
              'tbody',
              _.group({
                  min: 0,
                  max: WEEKS_IN_CALENDAR - 1,
                  i: 1,
                  node: 'tr',
                  item: function( rowCounter ) {

                      // If Monday is the first day and the month starts on Sunday, shift the date back a week.
                      var shiftDateBy = settings.firstDay && calendar.create([ viewsetObject.year, viewsetObject.month, 1 ]).day === 0 ? -7 : 0;

                      return [
                          _.group({
                              min: DAYS_IN_WEEK * rowCounter - viewsetObject.day + shiftDateBy + 1, // Add 1 for weekday 0index
                              max: function() {
                                  return this.min + DAYS_IN_WEEK - 1
                              },
                              i: 1,
                              node: 'td',
                              item: function( targetDate ) {

                                  // Convert the time date from a relative date to a target date.
                                  targetDate = calendar.create([ viewsetObject.year, viewsetObject.month, targetDate + ( settings.firstDay ? 1 : 0 ) ]);

                                  var isSelected = selectedObject && selectedObject.pick == targetDate.pick,
                                      isHighlighted = highlightedObject && highlightedObject.pick == targetDate.pick,
                                      isDisabled = disabledCollection && calendar.disabled( targetDate ) || targetDate.pick < minLimitObject.pick || targetDate.pick > maxLimitObject.pick,
                                      formattedDate = _.trigger( calendar.formats.toString, calendar, [ settings.format, targetDate ] );

                                  return [
                                      _.node(
                                          'div',
                                          targetDate.date,
                                          (function( klasses ) {

                                              // Add the `infocus` or `outfocus` classes based on month in view.
                                              klasses.push( viewsetObject.month == targetDate.month ? settings.klass.infocus : settings.klass.outfocus );

                                              // Add the `today` class if needed.
                                              if ( nowObject.pick == targetDate.pick ) {
                                                  klasses.push( settings.klass.now );
                                              }

                                              // Add the `selected` class if something's selected and the time matches.
                                              if ( isSelected ) {
                                                  klasses.push( settings.klass.selected );
                                              }

                                              // Add the `highlighted` class if something's highlighted and the time matches.
                                              if ( isHighlighted ) {
                                                  klasses.push( settings.klass.highlighted );
                                              }

                                              // Add the `disabled` class if something's disabled and the object matches.
                                              if ( isDisabled ) {
                                                  klasses.push( settings.klass.disabled );
                                              }

                                              return klasses.join( ' ' )
                                          })([ settings.klass.day ]),
                                          'data-pick=' + targetDate.pick + ' ' + _.ariaAttr({
                                              role: 'gridcell',
                                              label: formattedDate,
                                              selected: isSelected && calendar.$node.val() === formattedDate ? true : null,
                                              activedescendant: isHighlighted ? true : null,
                                              disabled: isDisabled ? true : null
                                          })
                                      ),
                                      '',
                                      _.ariaAttr({ role: 'presentation' })
                                  ] //endreturn
                              }
                          })
                      ] //endreturn
                  }
              })
          ),
          settings.klass.table,
          'id="' + calendar.$node[0].id + '_table' + '" ' + _.ariaAttr({
              role: 'grid',
              controls: calendar.$node[0].id,
              readonly: true
          })
      ) +

      // * For Firefox forms to submit, make sure to set the buttons’ `type` attributes as “button”.
      _.node(
          'div',
          _.node( 'button', settings.today, settings.klass.buttonToday,
              'type=button data-pick=' + nowObject.pick +
              ( isOpen && !calendar.disabled(nowObject) ? '' : ' disabled' ) + ' ' +
              _.ariaAttr({ controls: calendar.$node[0].id }) ) +
          _.node( 'button', settings.clear, settings.klass.buttonClear,
              'type=button data-clear=1' +
              ( isOpen ? '' : ' disabled' ) + ' ' +
              _.ariaAttr({ controls: calendar.$node[0].id }) ) +
          _.node('button', settings.close, settings.klass.buttonClose,
              'type=button data-close=true ' +
              ( isOpen ? '' : ' disabled' ) + ' ' +
              _.ariaAttr({ controls: calendar.$node[0].id }) ),
          settings.klass.footer
      ) //endreturn
  }; //DatePicker.prototype.nodes




  /**
   * The date picker defaults.
   */
  DatePicker.defaults = (function( prefix ) {

      return {

          // The title label to use for the month nav buttons
          labelMonthNext: 'Next month',
          labelMonthPrev: 'Previous month',

          // The title label to use for the dropdown selectors
          labelMonthSelect: 'Select a month',
          labelYearSelect: 'Select a year',

          // Months and weekdays
          monthsFull: [ 'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December' ],
          monthsShort: [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ],
          weekdaysFull: [ 'Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday' ],
          weekdaysShort: [ 'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat' ],

          // Today and clear
          today: 'Today',
          clear: 'Clear',
          close: 'Close',

          // Picker close behavior
          closeOnSelect: true,
          closeOnClear: true,

          // Update input value on select/clear
          updateInput: true,

          // The format to show on the `input` element
          format: 'd mmmm, yyyy',

          // Classes
          klass: {

              table: prefix + 'table',

              header: prefix + 'header',

              navPrev: prefix + 'nav--prev',
              navNext: prefix + 'nav--next',
              navDisabled: prefix + 'nav--disabled',

              month: prefix + 'month',
              year: prefix + 'year',

              selectMonth: prefix + 'select--month',
              selectYear: prefix + 'select--year',

              weekdays: prefix + 'weekday',

              day: prefix + 'day',
              disabled: prefix + 'day--disabled',
              selected: prefix + 'day--selected',
              highlighted: prefix + 'day--highlighted',
              now: prefix + 'day--today',
              infocus: prefix + 'day--infocus',
              outfocus: prefix + 'day--outfocus',

              footer: prefix + 'footer',

              buttonClear: prefix + 'button--clear',
              buttonToday: prefix + 'button--today',
              buttonClose: prefix + 'button--close'
          }
      }
  })( Picker.klasses().picker + '__' );





  /**
   * Extend the picker to add the date picker.
   */
  Picker.extend( 'pickadate', DatePicker );


  }));
  });

  /*
   * Date picker plugin extends `pickadate.js` by Amsul
   */

  var PickDate = function ($) {
    // constants >>>
    var DATA_KEY = 'md.pickdate';
    var NAME = 'pickdate';
    var NO_CONFLICT = $.fn[NAME];
    var Default = {
      cancel: 'Cancel',
      closeOnCancel: true,
      closeOnSelect: false,
      container: '',
      containerHidden: '',
      disable: [],
      firstDay: 0,
      format: 'd/m/yyyy',
      formatSubmit: '',
      hiddenName: false,
      hiddenPrefix: '',
      hiddenSuffix: '',
      klass: {
        // button
        buttonClear: 'btn btn-outline-primary picker-button-clear',
        buttonClose: 'btn btn-outline-primary picker-button-close',
        buttonToday: 'btn btn-outline-primary picker-button-today',
        // day
        day: 'picker-day',
        disabled: 'picker-day-disabled',
        highlighted: 'picker-day-highlighted',
        infocus: 'picker-day-infocus',
        now: 'picker-day-today',
        outfocus: 'picker-day-outfocus',
        selected: 'picker-day-selected',
        weekdays: 'picker-weekday',
        // element
        box: 'picker-box',
        footer: 'picker-footer',
        frame: 'picker-frame',
        header: 'picker-header',
        holder: 'picker-holder',
        table: 'picker-table',
        wrap: 'picker-wrap',
        // input element
        active: 'picker-input-active',
        input: 'picker-input',
        // month and year nav
        month: 'picker-month',
        navDisabled: 'picker-nav-disabled',
        navNext: 'material-icons picker-nav-next',
        navPrev: 'material-icons picker-nav-prev',
        selectMonth: 'picker-select-month',
        selectYear: 'picker-select-year',
        year: 'picker-year',
        // root picker
        focused: 'picker-focused',
        opened: 'picker-opened',
        picker: 'picker'
      },
      labelMonthNext: 'Next month',
      labelMonthPrev: 'Previous month',
      labelMonthSelect: 'Select a month',
      labelYearSelect: 'Select a year',
      max: false,
      min: false,
      monthsFull: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
      monthsShort: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
      ok: 'OK',
      onClose: function onClose() {// Do nothing
      },
      onOpen: function onOpen() {// Do nothing
      },
      onRender: function onRender() {// Do nothing
      },
      onSet: function onSet() {// Do nothing
      },
      onStart: function onStart() {// Do nothing
      },
      onStop: function onStop() {// Do nothing
      },
      selectMonths: false,
      selectYears: false,
      today: '',
      weekdaysFull: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
      weekdaysShort: ['S', 'M', 'T', 'W', 'T', 'F', 'S']
    };
    var DefaultType = {
      cancel: 'string',
      closeOnCancel: 'boolean',
      closeOnSelect: 'boolean',
      container: 'string',
      containerHidden: 'string',
      disable: 'array',
      firstDay: 'number',
      format: 'string',
      formatSubmit: 'string',
      hiddenName: 'boolean',
      hiddenPrefix: 'string',
      hiddenSuffix: 'string',
      klass: 'object',
      labelMonthNext: 'string',
      labelMonthPrev: 'string',
      labelMonthSelect: 'string',
      labelYearSelect: 'string',
      max: 'boolean || date',
      min: 'boolean || date',
      monthsFull: 'array',
      monthsShort: 'array',
      ok: 'string',
      onClose: 'function',
      onOpen: 'function',
      onRender: 'function',
      onSet: 'function',
      onStart: 'function',
      onStop: 'function',
      selectMonths: 'boolean',
      selectYears: 'boolean || number',
      today: 'string',
      weekdaysFull: 'array',
      weekdaysShort: 'array'
    };

    var PickDate =
    /*#__PURE__*/
    function () {
      function PickDate(element, config) {
        this._config = this._getConfig(config);
        this._element = element;
      }

      var _proto = PickDate.prototype;

      _proto.display = function display(datepickerApi, datepickerRoot, datepickerValue) {
        $('.picker-date-display', datepickerRoot).remove();
        $('.picker-wrap', datepickerRoot).prepend("<div class=\"picker-date-display\"><div class=\"picker-date-display-top\"><span class=\"picker-year-display\">" + datepickerApi.get(datepickerValue, 'yyyy') + "</span></div><div class=\"picker-date-display-bottom\"><span class=\"picker-weekday-display\">" + datepickerApi.get(datepickerValue, 'dddd') + "</span><span class=\"picker-day-display\">" + datepickerApi.get(datepickerValue, 'd') + "</span><span class=\"picker-month-display\">" + datepickerApi.get(datepickerValue, 'mmm') + "</span></div></div>");
      };

      _proto.show = function show() {
        var _this = this;

        $(this._element).pickadate({
          clear: this._config.cancel,
          close: this._config.ok,
          closeOnClear: this._config.closeOnCancel,
          closeOnSelect: this._config.closeOnSelect,
          container: this._config.container,
          containerHidden: this._config.containerHidden,
          disable: this._config.disable,
          firstDay: this._config.firstDay,
          format: this._config.format,
          formatSubmit: this._config.formatSubmit,
          klass: this._config.klass,
          hiddenName: this._config.hiddenName,
          hiddenPrefix: this._config.hiddenPrefix,
          hiddenSuffix: this._config.hiddenSuffix,
          labelMonthNext: this._config.labelMonthNext,
          labelMonthPrev: this._config.labelMonthPrev,
          labelMonthSelect: this._config.labelMonthSelect,
          labelYearSelect: this._config.labelYearSelect,
          max: this._config.max,
          min: this._config.min,
          monthsFull: this._config.monthsFull,
          monthsShort: this._config.monthsShort,
          onClose: this._config.onClose,
          onOpen: this._config.onOpen,
          onRender: this._config.onRender,
          onSet: this._config.onSet,
          onStart: this._config.onStart,
          onStop: this._config.onStop,
          selectMonths: this._config.selectMonths,
          selectYears: this._config.selectYears,
          today: this._config.today,
          weekdaysFull: this._config.weekdaysFull,
          weekdaysShort: this._config.weekdaysShort
        });
        var datepickerApi = $(this._element).pickadate('picker');
        var datepickerRoot = datepickerApi.$root;
        datepickerApi.on({
          close: function close() {
            $(document.activeElement).blur();
          },
          open: function open() {
            if (!$('.picker__date-display', datepickerRoot).length) {
              _this.display(datepickerApi, datepickerRoot, 'highlight');
            }
          },
          set: function set() {
            if (datepickerApi.get('select') !== null) {
              _this.display(datepickerApi, datepickerRoot, 'select');
            }
          }
        });
      };

      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, Default, config);
        Util.typeCheckConfig(NAME, config, DefaultType);
        return config;
      };

      PickDate._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var _config = _objectSpread({}, Default, $(this).data(), typeof config === 'object' && config ? config : {});

          var data = $(this).data(DATA_KEY);

          if (!data) {
            data = new PickDate(this, _config);
            $(this).data(DATA_KEY, data);
          }

          data.show();
        });
      };

      return PickDate;
    }();

    $.fn[NAME] = PickDate._jQueryInterface;
    $.fn[NAME].Constructor = PickDate;

    $.fn[NAME].noConflict = function () {
      $.fn[NAME] = NO_CONFLICT;
      return PickDate._jQueryInterface;
    };
  }($);

  /*
   * Selection control plugin fixes the focus state problem with
   * Chrome persisting focus state on checkboxes/radio buttons after clicking
   */

  var SelectionControlFocus = function ($) {
    // constants >>>
    var DATA_KEY = 'md.selectioncontrolfocus';
    var EVENT_KEY = "." + DATA_KEY;
    var ClassName = {
      FOCUS: 'focus'
    };
    var LastInteraction = {
      IS_MOUSEDOWN: false
    };
    var Event = {
      BLUR: "blur" + EVENT_KEY,
      FOCUS: "focus" + EVENT_KEY,
      MOUSEDOWN: "mousedown" + EVENT_KEY,
      MOUSEUP: "mouseup" + EVENT_KEY
    };
    var Selector = {
      CONTROL: '.custom-control',
      INPUT: '.custom-control-input' // <<< constants

    };
    $(document).on("" + Event.BLUR, Selector.INPUT, function () {
      $(this).removeClass(ClassName.FOCUS);
    }).on("" + Event.FOCUS, Selector.INPUT, function () {
      if (LastInteraction.IS_MOUSEDOWN === false) {
        $(this).addClass(ClassName.FOCUS);
      }
    }).on("" + Event.MOUSEDOWN, Selector.CONTROL, function () {
      LastInteraction.IS_MOUSEDOWN = true;
    }).on("" + Event.MOUSEUP, Selector.CONTROL, function () {
      setTimeout(function () {
        LastInteraction.IS_MOUSEDOWN = false;
      }, 1);
    });
  }($);

  /*
   * Tab indicator animation
   * Requires Bootstrap's (v4.1.X) `tab.js`
   */

  var TabSwitch = function ($) {
    // constants >>>
    var DATA_KEY = 'md.tabswitch';
    var NAME = 'tabswitch';
    var NO_CONFLICT = $.fn[NAME];
    var ClassName = {
      ANIMATE: 'animate',
      DROPDOWN_ITEM: 'dropdown-item',
      INDICATOR: 'nav-tabs-indicator',
      MATERIAL: 'nav-tabs-material',
      SCROLLABLE: 'nav-tabs-scrollable',
      SHOW: 'show'
    };
    var Event = {
      SHOW_BS_TAB: 'show.bs.tab'
    };
    var Selector = {
      DATA_TOGGLE: '.nav-tabs [data-toggle="tab"]',
      DROPDOWN: '.dropdown',
      NAV: '.nav-tabs' // <<< constants

    };

    var TabSwitch =
    /*#__PURE__*/
    function () {
      function TabSwitch(nav) {
        this._nav = nav;
        this._navindicator = null;
      }

      var _proto = TabSwitch.prototype;

      _proto.switch = function _switch(element, relatedTarget) {
        var _this = this;

        var navLeft = $(this._nav).offset().left;
        var navScrollLeft = $(this._nav).scrollLeft();
        var navWidth = $(this._nav).outerWidth();

        if (!this._navindicator) {
          this._createIndicator(navLeft, navScrollLeft, navWidth, relatedTarget);
        }

        if ($(element).hasClass(ClassName.DROPDOWN_ITEM)) {
          element = $(element).closest(Selector.DROPDOWN);
        }

        var elLeft = $(element).offset().left;
        var elWidth = $(element).outerWidth();
        $(this._navindicator).addClass(ClassName.SHOW);
        Util.reflow(this._navindicator);
        $(this._nav).addClass(ClassName.ANIMATE);
        $(this._navindicator).css({
          left: elLeft + navScrollLeft - navLeft,
          right: navWidth - (elLeft + navScrollLeft - navLeft + elWidth)
        });

        var complete = function complete() {
          $(_this._nav).removeClass(ClassName.ANIMATE);
          $(_this._navindicator).removeClass(ClassName.SHOW);
        };

        var transitionDuration = Util.getTransitionDurationFromElement(this._navindicator);
        $(this._navindicator).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
      };

      _proto._createIndicator = function _createIndicator(navLeft, navScrollLeft, navWidth, relatedTarget) {
        this._navindicator = document.createElement('div');
        $(this._navindicator).addClass(ClassName.INDICATOR).appendTo(this._nav);

        if (typeof relatedTarget !== 'undefined') {
          if ($(relatedTarget).hasClass(ClassName.DROPDOWN_ITEM)) {
            relatedTarget = $(relatedTarget).closest(Selector.DROPDOWN);
          }

          var relatedLeft = $(relatedTarget).offset().left;
          var relatedWidth = $(relatedTarget).outerWidth();
          $(this._navindicator).css({
            left: relatedLeft + navScrollLeft - navLeft,
            right: navWidth - (relatedLeft + navScrollLeft - navLeft + relatedWidth)
          });
        }

        $(this._nav).addClass(ClassName.MATERIAL);
      };

      TabSwitch._jQueryInterface = function _jQueryInterface(relatedTarget) {
        return this.each(function () {
          var nav = $(this).closest(Selector.NAV)[0];

          if (!nav) {
            return;
          }

          var data = $(nav).data(DATA_KEY);

          if (!data) {
            data = new TabSwitch(nav);
            $(nav).data(DATA_KEY, data);
          }

          data.switch(this, relatedTarget);
        });
      };

      return TabSwitch;
    }();

    $(document).on(Event.SHOW_BS_TAB, Selector.DATA_TOGGLE, function (event) {
      TabSwitch._jQueryInterface.call($(this), event.relatedTarget);
    });
    $.fn[NAME] = TabSwitch._jQueryInterface;
    $.fn[NAME].Constructor = TabSwitch;

    $.fn[NAME].noConflict = function () {
      $.fn[NAME] = NO_CONFLICT;
      return TabSwitch._jQueryInterface;
    };

    return TabSwitch;
  }($);

  exports.ExpansionPanel = ExpansionPanel;
  exports.FloatingLabel = FloatingLabel;
  exports.NavDrawer = NavDrawer;
  exports.PickDate = PickDate;
  exports.SelectionControlFocus = SelectionControlFocus;
  exports.TabSwitch = TabSwitch;
  exports.Util = Util;

  Object.defineProperty(exports, '__esModule', { value: true });

}));
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