bootstrap.js

   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME = 'collapse';
  var VERSION = '4.0.0';
  var DATA_KEY = 'bs.collapse';
  var EVENT_KEY = '.' + DATA_KEY;
  var DATA_API_KEY = '.data-api';
  var JQUERY_NO_CONFLICT = $.fn[NAME];
  var TRANSITION_DURATION = 600;

  var Default = {
    toggle: true,
    parent: ''
  };

  var DefaultType = {
    toggle: 'boolean',
    parent: 'string'
  };

  var Event = {
    SHOW: 'show' + EVENT_KEY,
    SHOWN: 'shown' + EVENT_KEY,
    HIDE: 'hide' + EVENT_KEY,
    HIDDEN: 'hidden' + EVENT_KEY,
    CLICK_DATA_API: 'click' + EVENT_KEY + DATA_API_KEY
  };

  var ClassName = {
    IN: 'in',
    COLLAPSE: 'collapse',
    COLLAPSING: 'collapsing',
    COLLAPSED: 'collapsed'
  };

  var Dimension = {
    WIDTH: 'width',
    HEIGHT: 'height'
  };

  var Selector = {
    ACTIVES: '.panel > .in, .panel > .collapsing',
    DATA_TOGGLE: '[data-toggle="collapse"]'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Collapse = (function () {
    function Collapse(element, config) {
      _classCallCheck(this, Collapse);

      this._isTransitioning = false;
      this._element = element;
      this._config = this._getConfig(config);
      this._triggerArray = $.makeArray($('[data-toggle="collapse"][href="#' + element.id + '"],' + ('[data-toggle="collapse"][data-target="#' + element.id + '"]')));

      this._parent = this._config.parent ? this._getParent() : null;

      if (!this._config.parent) {
        this._addAriaAndCollapsedClass(this._element, this._triggerArray);
      }

      if (this._config.toggle) {
        this.toggle();
      }
    }

    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */

    // getters

    _createClass(Collapse, [{
      key: 'toggle',

      // public

      value: function toggle() {
        if ($(this._element).hasClass(ClassName.IN)) {
          this.hide();
        } else {
          this.show();
        }
      }
    }, {
      key: 'show',
      value: function show() {
        var _this4 = this;

        if (this._isTransitioning || $(this._element).hasClass(ClassName.IN)) {
          return;
        }

        var actives = undefined;
        var activesData = undefined;

        if (this._parent) {
          actives = $.makeArray($(Selector.ACTIVES));
          if (!actives.length) {
            actives = null;
          }
        }

        if (actives) {
          activesData = $(actives).data(DATA_KEY);
          if (activesData && activesData._isTransitioning) {
            return;
          }
        }

        var startEvent = $.Event(Event.SHOW);
        $(this._element).trigger(startEvent);
        if (startEvent.isDefaultPrevented()) {
          return;
        }

        if (actives) {
          Collapse._jQueryInterface.call($(actives), 'hide');
          if (!activesData) {
            $(actives).data(DATA_KEY, null);
          }
        }

        var dimension = this._getDimension();

        $(this._element).removeClass(ClassName.COLLAPSE).addClass(ClassName.COLLAPSING);

        this._element.style[dimension] = 0;
        this._element.setAttribute('aria-expanded', true);

        if (this._triggerArray.length) {
          $(this._triggerArray).removeClass(ClassName.COLLAPSED).attr('aria-expanded', true);
        }

        this.setTransitioning(true);

        var complete = function complete() {
          $(_this4._element).removeClass(ClassName.COLLAPSING).addClass(ClassName.COLLAPSE).addClass(ClassName.IN);

          _this4._element.style[dimension] = '';

          _this4.setTransitioning(false);

          $(_this4._element).trigger(Event.SHOWN);
        };

        if (!Util.supportsTransitionEnd()) {
          complete();
          return;
        }

        var scrollSize = 'scroll' + (dimension[0].toUpperCase() + dimension.slice(1));

        $(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(TRANSITION_DURATION);

        this._element.style[dimension] = this._element[scrollSize] + 'px';
      }
    }, {
      key: 'hide',
      value: function hide() {
        var _this5 = this;

        if (this._isTransitioning || !$(this._element).hasClass(ClassName.IN)) {
          return;
        }

        var startEvent = $.Event(Event.HIDE);
        $(this._element).trigger(startEvent);
        if (startEvent.isDefaultPrevented()) {
          return;
        }

        var dimension = this._getDimension();
        var offsetDimension = dimension === Dimension.WIDTH ? 'offsetWidth' : 'offsetHeight';

        this._element.style[dimension] = this._element[offsetDimension] + 'px';

        Util.reflow(this._element);

        $(this._element).addClass(ClassName.COLLAPSING).removeClass(ClassName.COLLAPSE).removeClass(ClassName.IN);

        this._element.setAttribute('aria-expanded', false);

        if (this._triggerArray.length) {
          $(this._triggerArray).addClass(ClassName.COLLAPSED).attr('aria-expanded', false);
        }

        this.setTransitioning(true);

        var complete = function complete() {
          _this5.setTransitioning(false);
          $(_this5._element).removeClass(ClassName.COLLAPSING).addClass(ClassName.COLLAPSE).trigger(Event.HIDDEN);
        };

        this._element.style[dimension] = 0;

        if (!Util.supportsTransitionEnd()) {
          return complete();
        }

        $(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(TRANSITION_DURATION);
      }
    }, {
      key: 'setTransitioning',
      value: function setTransitioning(isTransitioning) {
        this._isTransitioning = isTransitioning;
      }
    }, {
      key: 'dispose',
      value: function dispose() {
        $.removeData(this._element, DATA_KEY);

        this._config = null;
        this._parent = null;
        this._element = null;
        this._triggerArray = null;
        this._isTransitioning = null;
      }

      // private

    }, {
      key: '_getConfig',
      value: function _getConfig(config) {
        config = $.extend({}, Default, config);
        config.toggle = !!config.toggle; // coerce string values
        Util.typeCheckConfig(NAME, config, DefaultType);
        return config;
      }
    }, {
      key: '_getDimension',
      value: function _getDimension() {
        var hasWidth = $(this._element).hasClass(Dimension.WIDTH);
        return hasWidth ? Dimension.WIDTH : Dimension.HEIGHT;
      }
    }, {
      key: '_getParent',
      value: function _getParent() {
        var _this6 = this;

        var parent = $(this._config.parent)[0];
        var selector = '[data-toggle="collapse"][data-parent="' + this._config.parent + '"]';

        $(parent).find(selector).each(function (i, element) {
          _this6._addAriaAndCollapsedClass(Collapse._getTargetFromElement(element), [element]);
        });

        return parent;
      }
    }, {
      key: '_addAriaAndCollapsedClass',
      value: function _addAriaAndCollapsedClass(element, triggerArray) {
        if (element) {
          var isOpen = $(element).hasClass(ClassName.IN);
          element.setAttribute('aria-expanded', isOpen);

          if (triggerArray.length) {
            $(triggerArray).toggleClass(ClassName.COLLAPSED, !isOpen).attr('aria-expanded', isOpen);
          }
        }
      }

      // static

    }], [{
      key: '_getTargetFromElement',
      value: function _getTargetFromElement(element) {
        var selector = Util.getSelectorFromElement(element);
        return selector ? $(selector)[0] : null;
      }
    }, {
      key: '_jQueryInterface',
      value: function _jQueryInterface(config) {
        return this.each(function () {
          var $this = $(this);
          var data = $this.data(DATA_KEY);
          var _config = $.extend({}, Default, $this.data(), typeof config === 'object' && config);

          if (!data && _config.toggle && /show|hide/.test(config)) {
            _config.toggle = false;
          }

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

          if (typeof config === 'string') {
            data[config]();
          }
        });
      }
    }, {
      key: 'VERSION',
      get: function get() {
        return VERSION;
      }
    }, {
      key: 'Default',
      get: function get() {
        return Default;
      }
    }]);

    return Collapse;
  })();

  $(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
    event.preventDefault();

    var target = Collapse._getTargetFromElement(this);

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

    Collapse._jQueryInterface.call($(target), config);
  });

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME] = Collapse._jQueryInterface;
  $.fn[NAME].Constructor = Collapse;
  $.fn[NAME].noConflict = function () {
    $.fn[NAME] = JQUERY_NO_CONFLICT;
    return Collapse._jQueryInterface;
  };

  return Collapse;
})(jQuery);

/**
 * --------------------------------------------------------------------------
 * Bootstrap (v4.0.0): dropdown.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * --------------------------------------------------------------------------
 */

var Dropdown = (function ($) {

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME = 'dropdown';
  var VERSION = '4.0.0';
  var DATA_KEY = 'bs.dropdown';
  var EVENT_KEY = '.' + DATA_KEY;
  var DATA_API_KEY = '.data-api';
  var JQUERY_NO_CONFLICT = $.fn[NAME];

  var Event = {
    HIDE: 'hide' + EVENT_KEY,
    HIDDEN: 'hidden' + EVENT_KEY,
    SHOW: 'show' + EVENT_KEY,
    SHOWN: 'shown' + EVENT_KEY,
    CLICK: 'click' + EVENT_KEY,
    CLICK_DATA_API: 'click' + EVENT_KEY + DATA_API_KEY,
    KEYDOWN_DATA_API: 'keydown' + EVENT_KEY + DATA_API_KEY
  };

  var ClassName = {
    BACKDROP: 'dropdown-backdrop',
    DISABLED: 'disabled',
    OPEN: 'open'
  };

  var Selector = {
    BACKDROP: '.dropdown-backdrop',
    DATA_TOGGLE: '[data-toggle="dropdown"]',
    FORM_CHILD: '.dropdown form',
    ROLE_MENU: '[role="menu"]',
    ROLE_LISTBOX: '[role="listbox"]',
    NAVBAR_NAV: '.navbar-nav',
    VISIBLE_ITEMS: '[role="menu"] li:not(.disabled) a, ' + '[role="listbox"] li:not(.disabled) a'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Dropdown = (function () {
    function Dropdown(element) {
      _classCallCheck(this, Dropdown);

      this._element = element;

      this._addEventListeners();
    }

    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */

    // getters

    _createClass(Dropdown, [{
      key: 'toggle',

      // public

      value: function toggle() {
        if (this.disabled || $(this).hasClass(ClassName.DISABLED)) {
          return;
        }

        var parent = Dropdown._getParentFromElement(this);
        var isActive = $(parent).hasClass(ClassName.OPEN);

        Dropdown._clearMenus();

        if (isActive) {
          return false;
        }

        if ('ontouchstart' in document.documentElement && !$(parent).closest(Selector.NAVBAR_NAV).length) {

          // if mobile we use a backdrop because click events don't delegate
          var dropdown = document.createElement('div');
          dropdown.className = ClassName.BACKDROP;
          $(dropdown).insertBefore(this);
          $(dropdown).on('click', Dropdown._clearMenus);
        }

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

        $(parent).trigger(showEvent);

        if (showEvent.isDefaultPrevented()) {
          return;
        }

        this.focus();
        this.setAttribute('aria-expanded', 'true');

        $(parent).toggleClass(ClassName.OPEN);
        $(parent).trigger($.Event(Event.SHOWN, relatedTarget));

        return false;
      }
    }, {
      key: 'dispose',
      value: function dispose() {
        $.removeData(this._element, DATA_KEY);
        $(this._element).off(EVENT_KEY);
        this._element = null;
      }

      // private

    }, {
      key: '_addEventListeners',
      value: function _addEventListeners() {
        $(this._element).on(Event.CLICK, this.toggle);
      }

      // static

    }], [{
      key: '_jQueryInterface',
      value: function _jQueryInterface(config) {
        return this.each(function () {
          var data = $(this).data(DATA_KEY);

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

          if (typeof config === 'string') {
            data[config].call(this);
          }
        });
      }
    }, {
      key: '_clearMenus',
      value: function _clearMenus(event) {
        if (event && event.which === 3) {
          return;
        }

        var backdrop = $(Selector.BACKDROP)[0];
        if (backdrop) {
          backdrop.parentNode.removeChild(backdrop);
        }

        var toggles = $.makeArray($(Selector.DATA_TOGGLE));

        for (var i = 0; i < toggles.length; i++) {
          var _parent = Dropdown._getParentFromElement(toggles[i]);
          var relatedTarget = { relatedTarget: toggles[i] };

          if (!$(_parent).hasClass(ClassName.OPEN)) {
            continue;
          }

          if (event && event.type === 'click' && /input|textarea/i.test(event.target.tagName) && $.contains(_parent, event.target)) {
            continue;
          }

          var hideEvent = $.Event(Event.HIDE, relatedTarget);
          $(_parent).trigger(hideEvent);
          if (hideEvent.isDefaultPrevented()) {
            continue;
          }

          toggles[i].setAttribute('aria-expanded', 'false');

          $(_parent).removeClass(ClassName.OPEN).trigger($.Event(Event.HIDDEN, relatedTarget));
        }
      }
    }, {
      key: '_getParentFromElement',
      value: function _getParentFromElement(element) {
        var parent = undefined;
        var selector = Util.getSelectorFromElement(element);

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

        return parent || element.parentNode;
      }
    }, {
      key: '_dataApiKeydownHandler',
      value: function _dataApiKeydownHandler(event) {
        if (!/(38|40|27|32)/.test(event.which) || /input|textarea/i.test(event.target.tagName)) {
          return;
        }

        event.preventDefault();
        event.stopPropagation();

        if (this.disabled || $(this).hasClass(ClassName.DISABLED)) {
          return;
        }

        var parent = Dropdown._getParentFromElement(this);
        var isActive = $(parent).hasClass(ClassName.OPEN);

        if (!isActive && event.which !== 27 || isActive && event.which === 27) {

          if (event.which === 27) {
            var toggle = $(parent).find(Selector.DATA_TOGGLE)[0];
            $(toggle).trigger('focus');
          }

          $(this).trigger('click');
          return;
        }

        var items = $.makeArray($(Selector.VISIBLE_ITEMS));

        items = items.filter(function (item) {
          return item.offsetWidth || item.offsetHeight;
        });

        if (!items.length) {
          return;
        }

        var index = items.indexOf(event.target);

        if (event.which === 38 && index > 0) index--; // up
        if (event.which === 40 && index < items.length - 1) index++; // down
        if (! ~index) index = 0;

        items[index].focus();
      }
    }, {
      key: 'VERSION',
      get: function get() {
        return VERSION;
      }
    }]);

    return Dropdown;
  })();

  $(document).on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler).on(Event.KEYDOWN_DATA_API, Selector.ROLE_MENU, Dropdown._dataApiKeydownHandler).on(Event.KEYDOWN_DATA_API, Selector.ROLE_LISTBOX, Dropdown._dataApiKeydownHandler).on(Event.CLICK_DATA_API, Dropdown._clearMenus).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, Dropdown.prototype.toggle).on(Event.CLICK_DATA_API, Selector.FORM_CHILD, function (e) {
    e.stopPropagation();
  });

  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME] = Dropdown._jQueryInterface;
  $.fn[NAME].Constructor = Dropdown;
  $.fn[NAME].noConflict = function () {
    $.fn[NAME] = JQUERY_NO_CONFLICT;
    return Dropdown._jQueryInterface;
  };

  return Dropdown;
})(jQuery);

/**
 * --------------------------------------------------------------------------
 * Bootstrap (v4.0.0): modal.js
 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * --------------------------------------------------------------------------
 */

var Modal = (function ($) {

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME = 'modal';
  var VERSION = '4.0.0';
  var DATA_KEY = 'bs.modal';
  var EVENT_KEY = '.' + DATA_KEY;
  var DATA_API_KEY = '.data-api';
  var JQUERY_NO_CONFLICT = $.fn[NAME];
  var TRANSITION_DURATION = 300;
  var BACKDROP_TRANSITION_DURATION = 150;

  var Default = {
    backdrop: true,
    keyboard: true,
    focus: true,
    show: true
  };

  var DefaultType = {
    backdrop: '(boolean|string)',
    keyboard: 'boolean',
    focus: 'boolean',
    show: 'boolean'
  };

  var Event = {
    HIDE: 'hide' + EVENT_KEY,
    HIDDEN: 'hidden' + EVENT_KEY,
    SHOW: 'show' + EVENT_KEY,
    SHOWN: 'shown' + EVENT_KEY,
    FOCUSIN: 'focusin' + EVENT_KEY,
    RESIZE: 'resize' + EVENT_KEY,
    CLICK_DISMISS: 'click.dismiss' + EVENT_KEY,
    KEYDOWN_DISMISS: 'keydown.dismiss' + EVENT_KEY,
    MOUSEUP_DISMISS: 'mouseup.dismiss' + EVENT_KEY,
    MOUSEDOWN_DISMISS: 'mousedown.dismiss' + EVENT_KEY,
    CLICK_DATA_API: 'click' + EVENT_KEY + DATA_API_KEY
  };

  var ClassName = {
    SCROLLBAR_MEASURER: 'modal-scrollbar-measure',
    BACKDROP: 'modal-backdrop',
    OPEN: 'modal-open',
    FADE: 'fade',
    IN: 'in'
  };

  var Selector = {
    DIALOG: '.modal-dialog',
    DATA_TOGGLE: '[data-toggle="modal"]',
    DATA_DISMISS: '[data-dismiss="modal"]',
    FIXED_CONTENT: '.navbar-fixed-top, .navbar-fixed-bottom, .is-fixed'
  };

  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Modal = (function () {
    function Modal(element, config) {
      _classCallCheck(this, Modal);

      this._config = this._getConfig(config);
      this._element = element;
      this._dialog = $(element).find(Selector.DIALOG)[0];
      this._backdrop = null;
      this._isShown = false;
      this._isBodyOverflowing = false;
      this._ignoreBackdropClick = false;
      this._originalBodyPadding = 0;
      this._scrollbarWidth = 0;
    }

    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */

    // getters

    _createClass(Modal, [{
      key: 'toggle',

      // public

      value: function toggle(relatedTarget) {
        return this._isShown ? this.hide() : this.show(relatedTarget);
      }
    }, {
      key: 'show',
      value: function show(relatedTarget) {
        var _this7 = this;

        var showEvent = $.Event(Event.SHOW, {
          relatedTarget: relatedTarget
        });

        $(this._element).trigger(showEvent);

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

        this._isShown = true;

        this._checkScrollbar();
        this._setScrollbar();

        $(document.body).addClass(ClassName.OPEN);

        this._setEscapeEvent();
        this._setResizeEvent();

        $(this._element).on(Event.CLICK_DISMISS, Selector.DATA_DISMISS, $.proxy(this.hide, this));

        $(this._dialog).on(Event.MOUSEDOWN_DISMISS, function () {
          $(_this7._element).one(Event.MOUSEUP_DISMISS, function (event) {
            if ($(event.target).is(_this7._element)) {
              that._ignoreBackdropClick = true;
            }
          });
        });

        this._showBackdrop($.proxy(this._showElement, this, relatedTarget));
      }
    }, {
      key: 'hide',
      value: function hide(event) {
        if (event) {
          event.preventDefault();
        }

        var hideEvent = $.Event(Event.HIDE);

        $(this._element).trigger(hideEvent);

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

        this._isShown = false;

        this._setEscapeEvent();
        this._setResizeEvent();

        $(document).off(Event.FOCUSIN);

        $(this._element).removeClass(ClassName.IN);

        $(this._element).off(Event.CLICK_DISMISS);
        $(this._dialog).off(Event.MOUSEDOWN_DISMISS);

        if (Util.supportsTransitionEnd() && $(this._element).hasClass(ClassName.FADE)) {

          $(this._element).one(Util.TRANSITION_END, $.proxy(this._hideModal, this)).emulateTransitionEnd(TRANSITION_DURATION);
        } else {
          this._hideModal();
        }
      }
    }, {
      key: 'dispose',
      value: function dispose() {
        $.removeData(this._element, DATA_KEY);

        $(window).off(EVENT_KEY);
        $(document).off(EVENT_KEY);
        $(this._element).off(EVENT_KEY);
        $(this._backdrop).off(EVENT_KEY);

        this._config = null;
        this._element = null;
        this._dialog = null;
        this._backdrop = null;
        this._isShown = null;
        this._isBodyOverflowing = null;
        this._ignoreBackdropClick = null;
        this._originalBodyPadding = null;
        this._scrollbarWidth = null;
      }

      // private

    }, {
      key: '_getConfig',
      value: function _getConfig(config) {
        config = $.extend({}, Default, config);
        Util.typeCheckConfig(NAME, config, DefaultType);
        return config;
      }
    }, {
      key: '_showElement',
      value: function _showElement(relatedTarget) {
        var _this8 = this;

        var transition = Util.supportsTransitionEnd() && $(this._element).hasClass(ClassName.FADE);

        if (!this._element.parentNode || this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
          // don't move modals dom position
          document.body.appendChild(this._element);
        }

        this._element.style.display = 'block';
        this._element.scrollTop = 0;

        if (transition) {
          Util.reflow(this._element);
        }

        $(this._element).addClass(ClassName.IN);

        if (this._config.focus) this._enforceFocus();

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

        var transitionComplete = function transitionComplete() {
          if (_this8._config.focus) _this8._element.focus();
          $(_this8._element).trigger(shownEvent);
        };

        if (transition) {
          $(this._dialog).one(Util.TRANSITION_END, transitionComplete).emulateTransitionEnd(TRANSITION_DURATION);
        } else {
          transitionComplete();
        }
      }
    }, {
      key: '_enforceFocus',
      value: function _enforceFocus() {
        var _this9 = this;

        $(document).off(Event.FOCUSIN) // guard against infinite focus loop
        .on(Event.FOCUSIN, function (event) {
          if (_this9._element !== event.target && !$(_this9._element).has(event.target).length) {
            _this9._element.focus();
          }
        });
      }
    }, {
      key: '_setEscapeEvent',
      value: function _setEscapeEvent() {
        var _this10 = this;

        if (this._isShown && this._config.keyboard) {
          $(this._element).on(Event.KEYDOWN_DISMISS, function (event) {
            if (event.which === 27) {
              _this10.hide();
            }
          });
        } else if (!this._isShown) {
          $(this._element).off(Event.KEYDOWN_DISMISS);
        }
      }
    }, {
      key: '_setResizeEvent',
      value: function _setResizeEvent() {
        if (this._isShown) {
          $(window).on(Event.RESIZE, $.proxy(this._handleUpdate, this));
        } else {
          $(window).off(Event.RESIZE);
        }
      }
    }, {
      key: '_hideModal',
      value: function _hideModal() {
        var _this11 = this;

        this._element.style.display = 'none';
        this._showBackdrop(function () {
          $(document.body).removeClass(ClassName.OPEN);
          _this11._resetAdjustments();
          _this11._resetScrollbar();
          $(_this11._element).trigger(Event.HIDDEN);
        });
      }
    }, {
      key: '_removeBackdrop',
      value: function _removeBackdrop() {
        if (this._backdrop) {
          $(this._backdrop).remove();
          this._backdrop = null;
        }
      }
    }, {
      key: '_showBackdrop',
      value: function _showBackdrop(callback) {
        var _this12 = this;

        var animate = $(this._element).hasClass(ClassName.FADE) ? ClassName.FADE : '';

        if (this._isShown && this._config.backdrop) {
          var doAnimate = Util.supportsTransitionEnd() && animate;

          this._backdrop = document.createElement('div');
          this._backdrop.className = ClassName.BACKDROP;

          if (animate) {
            $(this._backdrop).addClass(animate);
          }

          $(this._backdrop).appendTo(document.body);

          $(this._element).on(Event.CLICK_DISMISS, function (event) {
            if (_this12._ignoreBackdropClick) {
              _this12._ignoreBackdropClick = false;
              return;
            }
            if (event.target !== event.currentTarget) {
              return;
            }
            if (_this12._config.backdrop === 'static') {
              _this12._element.focus();
            } else {
              _this12.hide();
            }
          });

          if (doAnimate) {
            Util.reflow(this._backdrop);
          }

          $(this._backdrop).addClass(ClassName.IN);

          if (!callback) {
            return;
          }

          if (!doAnimate) {
            callback();
            return;
          }

          $(this._backdrop).one(Util.TRANSITION_END, callback).emulateTransitionEnd(BACKDROP_TRANSITION_DURATION);
        } else if (!this._isShown && this._backdrop) {
          $(this._backdrop).removeClass(ClassName.IN);

          var callbackRemove = function callbackRemove() {
            _this12._removeBackdrop();
            if (callback) {
              callback();
            }
          };

          if (Util.supportsTransitionEnd() && $(this._element).hasClass(ClassName.FADE)) {
            $(this._backdrop).one(Util.TRANSITION_END, callbackRemove).emulateTransitionEnd(BACKDROP_TRANSITION_DURATION);
          } else {
            callbackRemove();
          }
        } else if (callback) {
          callback();
        }
      }

      // ----------------------------------------------------------------------
      // the following methods are used to handle overflowing modals
      // todo (fat): these should probably be refactored out of modal.js
      // ----------------------------------------------------------------------

    }, {
      key: '_handleUpdate',
      value: function _handleUpdate() {
        this._adjustDialog();
      }
    }, {
      key: '_adjustDialog',