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$ from 'jquery';\r\n\r\n/*!\r\n * Custom Select jQuery Plugin\r\n */\r\n\r\nconst CustomSelect = (($) => {\r\n\r\n  const defaults = {\r\n    block: 'custom-select',\r\n    hideCallback: false,\r\n    includeValue: false,\r\n    keyboard: true,\r\n    modifier: false,\r\n    placeholder: false,\r\n    search: false,\r\n    showCallback: false,\r\n    transition: 0\r\n  };\r\n\r\n  class CustomSelect {\r\n\r\n    /**\r\n     * Custom Select\r\n     *\r\n     * @param {Element} select Original `<select>` DOM element to customize.\r\n     * @param {Object=} options Settings plain object to overwrite defaults.\r\n     * @param {string=} options.block Custom select BEM block name.\r\n     * @param {Function=} options.hideCallback Fires after dropdown closes.\r\n     * @param {boolean=} options.includeValue Adds chosen value option to\r\n     *     dropdown. If enabled also cancels dropdown options rerender.\r\n     * @param {boolean=} options.keyboard Enables keyboard control.\r\n     * @param {string=} options.modifier Custom select block BEM modifier.\r\n     * @param {string=} options.placeholder Placeholder hint, can be an HTML\r\n     *     string (appears only if there is no explicitly selected options).\r\n     * @param {boolean=} options.search Adds input to filter options.\r\n     * @param {Function=} options.showCallback Fires after dropdown opens.\r\n     * @param {(number|string)=} options.transition jQuery slideUp/Down param.\r\n     */\r\n    constructor(select, options) {\r\n      this._$select = $(select);\r\n      this._options = {\r\n        ...defaults,\r\n        ...typeof options === 'object' && options\r\n      };\r\n\r\n      // Modifiers\r\n      this._activeModifier = `${this._options.block}--active`;\r\n      this._dropupModifier = `${this._options.block}--dropup`;\r\n\r\n      // Event handlers that can be removed\r\n      this._keydown = this._keydown.bind(this);\r\n      this._dropup = this._dropup.bind(this);\r\n      this._outside = this._outside.bind(this);\r\n\r\n      this._init();\r\n    }\r\n\r\n    /**\r\n     * Renders initial state of custom select & sets\r\n     * options click event listeners.\r\n     *\r\n     * @private\r\n     */\r\n    _init() {\r\n      this._$element = $(\r\n        `<div class=\"${this._options.block}\">\r\n           <button class=\"${this._options.block}__option ${this._options.block}__option--value\" type=\"button\"></button>\r\n           <div class=\"${this._options.block}__dropdown\" style=\"display: none;\"></div>\r\n         </div>`\r\n      );\r\n\r\n      this._$select\r\n        .hide()\r\n        .after(this._$element);\r\n\r\n      if (this._options.modifier) {\r\n        this._$element.addClass(this._options.modifier);\r\n      }\r\n\r\n      this._$values = this._$select.find('option');\r\n      this._values = [];\r\n\r\n      $.each(this._$values, (i, option) => {\r\n        const el = $(option).text().trim();\r\n        this._values.push(el);\r\n      });\r\n\r\n      this._$value = this._$element.find(`.${this._options.block}__option--value`);\r\n\r\n      if (this._options.placeholder) {\r\n        // Check explicitly selected option\r\n        if (this._$select.find('[selected]').length) {\r\n          this._options.placeholder = false;\r\n        } else {\r\n          this._$value.html(this._options.placeholder);\r\n          // Set select value to null\r\n          this._$select.prop('selectedIndex', -1);\r\n        }\r\n      }\r\n\r\n      this._$dropdown = this._$element.find(`.${this._options.block}__dropdown`);\r\n\r\n      // Render options\r\n      $.each(this._values, (i, el) => {\r\n        const cssClass = this._$values.eq(i).attr('class');\r\n        const $option = $(\r\n          `<button class=\"${this._options.block}__option\" type=\"button\">${el}</button>`\r\n        );\r\n\r\n        if (el === this._$select.find(':selected').text().trim()) {\r\n          this._$value\r\n            .text(el)\r\n            .addClass(cssClass).data('class', cssClass);\r\n\r\n          if (this._options.includeValue || this._options.placeholder) {\r\n            $option.addClass(cssClass);\r\n            this._$dropdown.append($option);\r\n          }\r\n        } else {\r\n          $option.addClass(cssClass);\r\n          this._$dropdown.append($option);\r\n        }\r\n      });\r\n\r\n      this._$options = this._$dropdown.find(`.${this._options.block}__option`);\r\n\r\n      if (this._options.search) {\r\n        this._search();\r\n      }\r\n\r\n      this._$value.one('click', (event) => {\r\n        this._show(event);\r\n      });\r\n\r\n      if (!this._$options.length) {\r\n        this._$value.prop('disabled', true);\r\n      }\r\n\r\n      this._$options.on('click', (event) => {\r\n        this._select(event);\r\n      });\r\n    }\r\n\r\n    /**\r\n     * Shows custom select dropdown & sets outside\r\n     * click listener to hide.\r\n     *\r\n     * @param {Object} event Value click jQuery event.\r\n     * @private\r\n     */\r\n    _show(event) {\r\n      event.preventDefault();\r\n\r\n      this._dropup();\r\n      $(window).on('resize scroll', this._dropup);\r\n\r\n      this._$element.addClass(this._activeModifier);\r\n\r\n      this._$dropdown.slideDown(this._options.transition, () => {\r\n        if (this._options.search) {\r\n          this._$input.focus();\r\n        }\r\n\r\n        // Open callback\r\n        if (typeof this._options.showCallback === 'function') {\r\n          this._options.showCallback.call(this._$element[0]);\r\n        }\r\n      });\r\n\r\n      setTimeout(() => {\r\n        const outsideClickEvent = 'ontouchstart' in document.documentElement ? 'touchstart' : 'click';\r\n        $(window).on(outsideClickEvent, this._outside);\r\n      }, 0);\r\n\r\n      this._$value.one('click', (event) => {\r\n        event.preventDefault();\r\n\r\n        this._hide();\r\n      });\r\n\r\n      if (this._options.keyboard) {\r\n        this._options.index = -1;\r\n        $(window).on('keydown', this._keydown);\r\n      }\r\n    }\r\n\r\n    /**\r\n     * Hides custom select dropdown & resets events\r\n     * listeners to initial.\r\n     *\r\n     * @private\r\n     */\r\n    _hide() {\r\n      this._$dropdown.slideUp(this._options.transition, () => {\r\n        this._$element\r\n          .removeClass(this._activeModifier)\r\n          .removeClass(this._dropupModifier);\r\n\r\n        // Close callback\r\n        if (typeof this._options.hideCallback === 'function') {\r\n          this._options.hideCallback.call(this._$element[0]);\r\n        }\r\n\r\n        $(window)\r\n          .off('touchstart click', this._outside)\r\n          .off('resize scroll', this._dropup);\r\n        this._$value\r\n          .off('click')\r\n          .one('click', (event) => {\r\n            this._show(event);\r\n          });\r\n      });\r\n\r\n      if (this._options.keyboard) {\r\n        this._$options.blur();\r\n        $(window).off('keydown', this._keydown);\r\n      }\r\n\r\n      // Clear search\r\n      if (this._options.search) {\r\n        this._$options.show();\r\n        this._$input\r\n          .val('')\r\n          .blur();\r\n        this._$wrap.scrollTop(0);\r\n      }\r\n    }\r\n\r\n    /**\r\n     * Changes value of custom select & `<select>`\r\n     * by chosen option.\r\n     *\r\n     * @param {Object} event Option click jQuery event.\r\n     * @private\r\n     */\r\n    _select(event) {\r\n      event.preventDefault();\r\n\r\n      const choice = $(event.currentTarget).text().trim();\r\n      const values = [...this._values];\r\n\r\n      this._$value\r\n        .text(choice)\r\n        .removeClass(this._$value.data('class'));\r\n      this._$values.prop('selected', false);\r\n\r\n      $.each(values, (i, el) => {\r\n        if (!this._options.includeValue && el === choice) {\r\n          values.splice(i, 1);\r\n        }\r\n\r\n        $.each(this._$values, (i, option) => {\r\n          const $option = $(option);\r\n          if ($option.text().trim() === choice) {\r\n            const cssClass = $option.attr('class');\r\n\r\n            $option.prop('selected', true);\r\n            this._$value.addClass(cssClass).data('class', cssClass);\r\n          }\r\n        });\r\n      });\r\n\r\n      this._hide();\r\n\r\n      // Update dropdown options content\r\n      if (!this._options.includeValue) {\r\n        if (this._$options.length > values.length) {\r\n          const last = this._$options.eq(values.length);\r\n\r\n          last.remove();\r\n          this._$options = this._$options.not(last);\r\n\r\n          if (!this._$options.length) {\r\n            this._$value.prop('disabled', true);\r\n          }\r\n        }\r\n\r\n        $.each(this._$options, (i, option) => {\r\n          const $option = $(option);\r\n          $option.text(values[i]);\r\n\r\n          // Reset option class\r\n          $option.attr('class', `${this._options.block}__option`);\r\n\r\n          $.each(this._$values, function() {\r\n            const $this = $(this);\r\n            if ($this.text().trim() === values[i]) {\r\n              $option.addClass($this.attr('class'));\r\n            }\r\n          });\r\n        });\r\n      }\r\n\r\n      if (typeof event.originalEvent !== 'undefined') {\r\n        this._$select.trigger('change');\r\n      }\r\n    }\r\n\r\n    /**\r\n     * Wraps options by wrap element, adds input to\r\n     * dropdown & implements options search.\r\n     *\r\n     * @private\r\n     */\r\n    _search() {\r\n      this._$input = $(`<input class=\"${this._options.block}__input\" autocomplete=\"off\">`);\r\n      this._$dropdown.prepend(this._$input);\r\n\r\n      // Add scrollable wrap\r\n      this._$options.wrapAll(`<div class=\"${this._options.block}__option-wrap\"></div>`);\r\n      this._$wrap = this._$element.find(`.${this._options.block}__option-wrap`);\r\n\r\n      this._$input.on('focus', () => {\r\n        this._options.index = -1;\r\n      });\r\n\r\n      this._$input.on('keyup', () => {\r\n        const query = this._$input.val().trim();\r\n\r\n        this._$wrap.scrollTop(0);\r\n\r\n        if (query.length) {\r\n          setTimeout(() => {\r\n            if (query === this._$input.val().trim()) {\r\n              $.each(this._$options, (i, option) => {\r\n                const $option = $(option);\r\n                const text = $option.text().trim().toLowerCase();\r\n                const match = text.indexOf(query.toLowerCase()) !== -1;\r\n\r\n                $option.toggle(match);\r\n              });\r\n            }\r\n          }, 300);\r\n        } else {\r\n          this._$options.show();\r\n        }\r\n      });\r\n    }\r\n\r\n    /**\r\n     * Toggles custom select dropup modifier based\r\n     * on space for dropdown below.\r\n     *\r\n     * @private\r\n     */\r\n    _dropup() {\r\n      const bottom = this._$element[0].getBoundingClientRect().bottom;\r\n      const up = $(window).height() - bottom < this._$dropdown.height();\r\n\r\n      this._$element.toggleClass(this._dropupModifier, up);\r\n    }\r\n\r\n     /**\r\n     * Hides dropdown if target of event (e.g. click\r\n     * on `$window`) is not custom select.\r\n     *\r\n     * @param {Object} event Outside \"click\" jQuery event.\r\n     * @private\r\n     */\r\n    _outside(event) {\r\n      const $target = $(event.target);\r\n      if (!$target.parents().is(this._$element) && !$target.is(this._$element)) {\r\n        this._hide();\r\n      }\r\n    }\r\n\r\n    /**\r\n     * Controls navigation from keyboard by custom\r\n     * select options.\r\n     *\r\n     * @param {Object} event Keydown jQuery event.\r\n     * @private\r\n     */\r\n    _keydown(event) {\r\n      const $visible = this._$options.filter(':visible');\r\n\r\n      switch (event.keyCode) {\r\n        // Down\r\n        case 40:\r\n          event.preventDefault();\r\n\r\n          const next = $visible.eq(this._options.index + 1).length;\r\n          if (next) {\r\n            this._options.index += 1;\r\n          } else {\r\n            this._options.index = 0;\r\n          }\r\n\r\n          $visible.eq(this._options.index).focus();\r\n          break;\r\n\r\n        // Up\r\n        case 38:\r\n          event.preventDefault();\r\n\r\n          const prev = $visible.eq(this._options.index - 1).length;\r\n          if (prev && this._options.index - 1 >= 0) {\r\n            this._options.index -= 1;\r\n          } else {\r\n            this._options.index = $visible.length - 1;\r\n          }\r\n\r\n          $visible.eq(this._options.index).focus();\r\n          break;\r\n\r\n        // Enter\r\n        case 13:\r\n\r\n        // Space\r\n        case 32:\r\n          if (!this._$input || !this._$input.is(':focus')) {\r\n            event.preventDefault();\r\n\r\n            const $option = this._$options.add(this._$value).filter(':focus');\r\n            $option.trigger('click');\r\n\r\n            if (!$option.is(this._$value)) {\r\n              this._$select.trigger('change');\r\n            }\r\n            this._$value.focus();\r\n          }\r\n          break;\r\n\r\n        // Esc\r\n        case 27:\r\n          event.preventDefault();\r\n\r\n          this._hide();\r\n          this._$value.focus();\r\n          break;\r\n\r\n        default:\r\n          break;\r\n      }\r\n    }\r\n\r\n    /**\r\n     * Creates jQuery plugin function.\r\n     *\r\n     * @param {Object} [options] Settings object.\r\n     * @returns {Function} jQuery plugin.\r\n     * @private\r\n     */\r\n    static _jQueryPlugin(options) {\r\n      return this.each(function () {\r\n        const $this = $(this);\r\n        let data = $this.data('custom-select');\r\n\r\n        if (!data) {\r\n          data = new CustomSelect(this, options);\r\n          $this.data('custom-select', data);\r\n        }\r\n      });\r\n    }\r\n  }\r\n\r\n  $.fn['customSelect'] = CustomSelect._jQueryPlugin;\r\n  $.fn['customSelect'].noConflict = () => $.fn['customSelect'];\r\n\r\n  return CustomSelect;\r\n\r\n})($);\r\n\r\nexport default CustomSelect;\r\n"]}