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Current File : /home/corals/cartforge.co/pub/static/frontend/Magento/blank/en_US/mage/backend/suggest.js
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

define([
    'jquery',
    'mage/template',
    'mage/mage',
    'jquery/ui',
    'mage/backend/menu',
    'mage/translate'
], function ($, mageTemplate) {
    'use strict';

    /**
     * Implement base functionality
     */
    $.widget('mage.suggest', {
        widgetEventPrefix: 'suggest',
        options: {
            template: '<% if (data.items.length) { %>' +
                '<% if (!data.term && !data.allShown() && data.recentShown()) { %>' +
                '<h5 class="title"><%- data.recentTitle %></h5>' +
                '<% } %>' +
                '<ul data-mage-init=\'{"menu":[]}\'>' +
                '<% _.each(data.items, function(value){ %>' +
                '<% if (!data.itemSelected(value)) { %><li <%= data.optionData(value) %>>' +
                '<a href="#"><%- value.label %></a></li><% } %>' +
                '<% }); %>' +
                '<% if (!data.term && !data.allShown() && data.recentShown()) { %>' +
                '<li data-mage-init=\'{"actionLink":{"event":"showAll"}}\' class="show-all">' +
                '<a href="#"><%- data.showAllTitle %></a></li>' +
                '<% } %>' +
                '</ul><% } else { %><span class="mage-suggest-no-records"><%- data.noRecordsText %></span><% } %>',
            minLength: 1,

            /**
             * @type {(String|Array)}
             */
            source: null,
            delay: 500,
            loadingClass: 'mage-suggest-state-loading',
            events: {},
            appendMethod: 'after',
            controls: {
                selector: ':ui-menu, :mage-menu',
                eventsMap: {
                    focus: ['menufocus'],
                    blur: ['menublur'],
                    select: ['menuselect']
                }
            },
            termAjaxArgument: 'label_part',
            filterProperty: 'label',
            className: null,
            inputWrapper: '<div class="mage-suggest"><div class="mage-suggest-inner"></div></div>',
            dropdownWrapper: '<div class="mage-suggest-dropdown"></div>',
            preventClickPropagation: true,
            currentlySelected: null,
            submitInputOnEnter: true
        },

        /**
         * Component's constructor
         * @private
         */
        _create: function () {
            this._term = null;
            this._nonSelectedItem = {
                id: '',
                label: ''
            };
            this.templates = {};
            this._renderedContext = null;
            this._selectedItem = this._nonSelectedItem;
            this._control = this.options.controls || {};
            this._setTemplate();
            this._prepareValueField();
            this._render();
            this._bind();
        },

        /**
         * Render base elements for suggest component
         * @private
         */
        _render: function () {
            var wrapper;

            this.dropdown = $(this.options.dropdownWrapper).hide();
            wrapper = this.options.className ?
                $(this.options.inputWrapper).addClass(this.options.className) :
                $(this.options.inputWrapper);
            this.element
                .wrap(wrapper)[this.options.appendMethod](this.dropdown)
                .attr('autocomplete', 'off');
        },

        /**
         * Define a field for storing item id (find in DOM or create a new one)
         * @private
         */
        _prepareValueField: function () {
            if (this.options.valueField) {
                this.valueField = $(this.options.valueField);
            } else {
                this.valueField = this._createValueField()
                    .insertBefore(this.element)
                    .attr('name', this.element.attr('name'));
                this.element.removeAttr('name');
            }
        },

        /**
         * Create value field which keeps a id for selected option
         * can be overridden in descendants
         * @return {jQuery}
         * @private
         */
        _createValueField: function () {
            return $('<input/>', {
                type: 'hidden'
            });
        },

        /**
         * Component's destructor
         * @private
         */
        _destroy: function () {
            this.element
                .unwrap()
                .removeAttr('autocomplete');

            if (!this.options.valueField) {
                this.element.attr('name', this.valueField.attr('name'));
                this.valueField.remove();
            }

            this.dropdown.remove();
            this._off(this.element, 'keydown keyup blur');
        },

        /**
         * Return actual value of an "input"-element
         * @return {String}
         * @private
         */
        _value: function () {
            return this.element[this.element.is(':input') ? 'val' : 'text']().trim();
        },

        /**
         * Pass original event to a control component for handling it as it's own event
         * @param {Object} event - event object
         * @private
         */
        _proxyEvents: function (event) {
            var fakeEvent = $.extend({}, $.Event(event.type), {
                    ctrlKey: event.ctrlKey,
                    keyCode: event.keyCode,
                    which: event.keyCode
                }),
                target = this._control.selector ? this.dropdown.find(this._control.selector) : this.dropdown;

            target.trigger(fakeEvent);
        },

        /**
         * Bind handlers on specific events
         * @private
         */
        _bind: function () {
            this._on($.extend({
                /**
                 * @param {jQuery.Event} event
                 */
                keydown: function (event) {
                    var keyCode = $.ui.keyCode,
                        suggestList,
                        hasSuggestedItems,
                        hasSelectedItems,
                        selectedItem;

                    switch (event.keyCode) {
                        case keyCode.PAGE_UP:
                        case keyCode.UP:
                            if (!event.shiftKey) {
                                event.preventDefault();
                                this._proxyEvents(event);
                            }

                            suggestList = event.currentTarget.parentNode.getElementsByTagName('ul')[0];
                            hasSuggestedItems = event.currentTarget
                                    .parentNode.getElementsByTagName('ul')[0].children.length >= 0;

                            if (hasSuggestedItems) {
                                selectedItem =  $(suggestList.getElementsByClassName('_active')[0])
                                    .removeClass('_active').prev().addClass('_active');
                                event.currentTarget.value = selectedItem.find('a').text();
                            }

                            break;

                        case keyCode.PAGE_DOWN:
                        case keyCode.DOWN:
                            if (!event.shiftKey) {
                                event.preventDefault();
                                this._proxyEvents(event);
                            }

                            suggestList = event.currentTarget.parentNode.getElementsByTagName('ul')[0];
                            hasSuggestedItems = event.currentTarget
                                .parentNode.getElementsByTagName('ul')[0].children.length >= 0;

                            if (hasSuggestedItems) {
                                hasSelectedItems = suggestList.getElementsByClassName('_active').length === 0;

                                if (hasSelectedItems) { //eslint-disable-line max-depth
                                    selectedItem = $(suggestList.children[0]).addClass('_active');
                                    event.currentTarget.value = selectedItem.find('a').text();
                                } else {
                                    selectedItem = $(suggestList.getElementsByClassName('_active')[0])
                                        .removeClass('_active').next().addClass('_active');
                                    event.currentTarget.value = selectedItem.find('a').text();
                                }
                            }
                            break;

                        case keyCode.TAB:
                            if (this.isDropdownShown()) {
                                this._onSelectItem(event, null);
                                event.preventDefault();
                            }
                            break;

                        case keyCode.ENTER:
                        case keyCode.NUMPAD_ENTER:
                            this._toggleEnter(event);

                            if (this.isDropdownShown() && this._focused) {
                                this._proxyEvents(event);
                                event.preventDefault();
                            }
                            break;

                        case keyCode.ESCAPE:
                            if (this.isDropdownShown()) {
                                event.stopPropagation();
                            }
                            this.close(event);
                            this._blurItem();
                            break;
                    }
                },

                /**
                 * @param {jQuery.Event} event
                 */
                keyup: function (event) {
                    var keyCode = $.ui.keyCode;

                    switch (event.keyCode) {
                        case keyCode.HOME:
                        case keyCode.END:
                        case keyCode.PAGE_UP:
                        case keyCode.PAGE_DOWN:
                        case keyCode.ESCAPE:
                        case keyCode.UP:
                        case keyCode.DOWN:
                        case keyCode.LEFT:
                        case keyCode.RIGHT:
                        case keyCode.TAB:
                            break;

                        case keyCode.ENTER:
                        case keyCode.NUMPAD_ENTER:
                            if (this.isDropdownShown()) {
                                event.preventDefault();
                            }
                            break;
                        default:
                            this.search(event);
                    }
                },

                /**
                 * @param {jQuery.Event} event
                 */
                blur: function (event) {
                    if (!this.preventBlur) {
                        this._abortSearch();
                        this.close(event);
                        this._change(event);
                    } else {
                        this.element.trigger('focus');
                    }
                },
                cut: this.search,
                paste: this.search,
                input: this.search,
                selectItem: this._onSelectItem,
                click: this.search
            }, this.options.events));

            this._bindSubmit();
            this._bindDropdown();
        },

        /**
         * @param {Object} event
         * @private
         */
        _toggleEnter: function (event) {
            var suggestList,
                activeItems,
                selectedItem;

            if (!this.options.submitInputOnEnter) {
                event.preventDefault();
            }

            suggestList = $(event.currentTarget.parentNode).find('ul').first();
            activeItems = suggestList.find('._active');

            if (activeItems.length >= 0) {
                selectedItem = activeItems.first();

                if (selectedItem.find('a') && selectedItem.find('a').attr('href') !== undefined) {
                    window.location = selectedItem.find('a').attr('href');
                    event.preventDefault();
                }
            }
        },

        /**
         * Bind handlers for submit on enter
         * @private
         */
        _bindSubmit: function () {
            this.element.parents('form').on('submit', function (event) {
                if (!this.submitInputOnEnter) {
                    event.preventDefault();
                }
            });
        },

        /**
         * @param {Object} e - event object
         * @private
         */
        _change: function (e) {
            if (this._term !== this._value()) {
                this._trigger('change', e);
            }
        },

        /**
         * Bind handlers for dropdown element on specific events
         * @private
         */
        _bindDropdown: function () {
            var events = {
                /**
                 * @param {jQuery.Event} e
                 */
                click: function (e) {
                    // prevent default browser's behavior of changing location by anchor href
                    e.preventDefault();
                },

                /**
                 * @param {jQuery.Event} e
                 */
                mousedown: function (e) {
                    e.preventDefault();
                }
            };

            $.each(this._control.eventsMap, $.proxy(function (suggestEvent, controlEvents) {
                $.each(controlEvents, $.proxy(function (i, handlerName) {
                    switch (suggestEvent) {
                        case 'select':
                            events[handlerName] = this._onSelectItem;
                            break;

                        case 'focus':
                            events[handlerName] = this._focusItem;
                            break;

                        case 'blur':
                            events[handlerName] = this._blurItem;
                            break;
                    }
                }, this));
            }, this));

            if (this.options.preventClickPropagation) {
                this._on(this.dropdown, events);
            }
            // Fix for IE 8
            this._on(this.dropdown, {
                /**
                 * Mousedown.
                 */
                mousedown: function () {
                    this.preventBlur = true;
                },

                /**
                 * Mouseup.
                 */
                mouseup: function () {
                    this.preventBlur = false;
                }
            });
        },

        /**
         * @override
         */
        _trigger: function (type, event) {
            var result = this._superApply(arguments);

            if (result === false && event) {
                event.stopImmediatePropagation();
                event.preventDefault();
            }

            return result;
        },

        /**
         * Handle focus event of options item
         * @param {Object} e - event object
         * @param {Object} ui - object that can contain information about focused item
         * @private
         */
        _focusItem: function (e, ui) {
            if (ui && ui.item) {
                this._focused = $(ui.item).prop('tagName') ?
                    this._readItemData(ui.item) :
                    ui.item;

                this.element.val(this._focused.label);
                this._trigger('focus', e, {
                    item: this._focused
                });
            }
        },

        /**
         * Handle blur event of options item
         * @private
         */
        _blurItem: function () {
            this._focused = null;
            this.element.val(this._term);
        },

        /**
         * @param {Object} e - event object
         * @param {Object} item
         * @private
         */
        _onSelectItem: function (e, item) {
            if (item && typeof item === 'object' && $(e.target).is(this.element)) {
                this._focusItem(e, {
                    item: item
                });
            }

            if (this._trigger('beforeselect', e || null, {
                    item: this._focused
                }) === false) {
                return;
            }
            this._selectItem(e);
            this._blurItem();
            this._trigger('select', e || null, {
                item: this._selectedItem
            });
        },

        /**
         * Save selected item and hide dropdown
         * @private
         * @param {Object} e - event object
         */
        _selectItem: function (e) {
            if (this._focused) {
                this._selectedItem = this._focused;

                if (this._selectedItem !== this._nonSelectedItem) {
                    this._term = this._selectedItem.label;
                    this.valueField.val(this._selectedItem.id);
                    this.close(e);
                }
            }
        },

        /**
         * Read option data from item element
         * @param {Element} element
         * @return {Object}
         * @private
         */
        _readItemData: function (element) {
            return element.data('suggestOption') || this._nonSelectedItem;
        },

        /**
         * Check if dropdown is shown
         * @return {Boolean}
         */
        isDropdownShown: function () {
            return this.dropdown.is(':visible');
        },

        /**
         * Open dropdown
         * @private
         * @param {Object} e - event object
         */
        open: function (e) {
            if (!this.isDropdownShown()) {
                this.element.addClass('_suggest-dropdown-open');
                this.dropdown.show();
                this._trigger('open', e);
            }
        },

        /**
         * Close and clear dropdown content
         * @private
         * @param {Object} e - event object
         */
        close: function (e) {
            this._renderedContext = null;

            if (this.dropdown.length) {
                this.element.removeClass('_suggest-dropdown-open');
                this.dropdown.hide().empty();
            }

            this._trigger('close', e);
        },

        /**
         * Acquire content template
         * @private
         */
        _setTemplate: function () {
            this.templateName = 'suggest' + Math.random().toString(36).substr(2);

            this.templates[this.templateName] = mageTemplate(this.options.template);
        },

        /**
         * Execute search process
         * @public
         * @param {Object} e - event object
         */
        search: function (e) {
            var term = this._value();

            if ((this._term !== term || term.length === 0) && !this.preventBlur) {
                this._term = term;

                if (typeof term === 'string' && term.length >= this.options.minLength) {
                    if (this._trigger('search', e) === false) { //eslint-disable-line max-depth
                        return;
                    }
                    this._search(e, term, {});
                } else {
                    this._selectedItem = this._nonSelectedItem;
                    this._resetSuggestValue();
                }
            }
        },

        /**
         * Clear suggest hidden input
         * @private
         */
        _resetSuggestValue: function () {
            this.valueField.val(this._nonSelectedItem.id);
        },

        /**
         * Actual search method, can be overridden in descendants
         * @param {Object} e - event object
         * @param {String} term - search phrase
         * @param {Object} context - search context
         * @private
         */
        _search: function (e, term, context) {
            var response = $.proxy(function (items) {
                return this._processResponse(e, items, context || {});
            }, this);

            this.element.addClass(this.options.loadingClass);

            if (this.options.delay) {
                if (typeof this.options.data !== 'undefined') {
                    response(this.filter(this.options.data, term));
                }
                clearTimeout(this._searchTimeout);
                this._searchTimeout = this._delay(function () {
                    this._source(term, response);
                }, this.options.delay);
            } else {
                this._source(term, response);
            }
        },

        /**
         * Extend basic context with additional data (search results, search term)
         * @param {Object} context
         * @return {Object}
         * @private
         */
        _prepareDropdownContext: function (context) {
            return $.extend(context, {
                items: this._items,
                term: this._term,

                /**
                 * @param {Object} item
                 * @return {String}
                 */
                optionData: function (item) {
                    return 'data-suggest-option="' +
                        $('<div>').text(JSON.stringify(item)).html().replace(/"/g, '&quot;') + '"';
                },
                itemSelected: $.proxy(this._isItemSelected, this),
                noRecordsText: $.mage.__('No records found.')
            });
        },

        /**
         * @param {Object} item
         * @return {Boolean}
         * @private
         */
        _isItemSelected: function (item) {
            return item.id == (this._selectedItem && this._selectedItem.id ? //eslint-disable-line eqeqeq
                this._selectedItem.id :
                this.options.currentlySelected);
        },

        /**
         * Render content of suggest's dropdown
         * @param {Object} e - event object
         * @param {Array} items - list of label+id objects
         * @param {Object} context - template's context
         * @private
         */
        _renderDropdown: function (e, items, context) {
            var tmpl = this.templates[this.templateName];

            this._items = items;

            tmpl = tmpl({
                data: this._prepareDropdownContext(context)
            });

            $(tmpl).appendTo(this.dropdown.empty());

            this.dropdown.trigger('contentUpdated')
                .find(this._control.selector).on('focus', function (event) {
                    event.preventDefault();
                });

            this._renderedContext = context;
            this.element.removeClass(this.options.loadingClass);
            this.open(e);
        },

        /**
         * @param {Object} e
         * @param {Object} items
         * @param {Object} context
         * @private
         */
        _processResponse: function (e, items, context) {
            var renderer = $.proxy(function (i) {
                return this._renderDropdown(e, i, context || {});
            }, this);

            if (this._trigger('response', e, [items, renderer]) === false) {
                return;
            }
            this._renderDropdown(e, items, context);
        },

        /**
         * Implement search process via spesific source
         * @param {String} term - search phrase
         * @param {Function} response - search results handler, process search result
         * @private
         */
        _source: function (term, response) {
            var o = this.options,
                ajaxData;

            if (Array.isArray(o.source)) {
                response(this.filter(o.source, term));
            } else if (typeof o.source === 'string') {
                ajaxData = {};
                ajaxData[this.options.termAjaxArgument] = term;

                this._xhr = $.ajax($.extend(true, {
                    url: o.source,
                    type: 'POST',
                    dataType: 'json',
                    data: ajaxData,
                    success: $.proxy(function (items) {
                        this.options.data = items;
                        response.apply(response, arguments);
                    }, this)
                }, o.ajaxOptions || {}));
            } else if (typeof o.source === 'function') {
                o.source.apply(o.source, arguments);
            }
        },

        /**
         * Abort search process
         * @private
         */
        _abortSearch: function () {
            this.element.removeClass(this.options.loadingClass);
            clearTimeout(this._searchTimeout);
        },

        /**
         * Perform filtering in advance loaded items and returns search result
         * @param {Array} items - all available items
         * @param {String} term - search phrase
         * @return {Object}
         */
        filter: function (items, term) {
            var matcher = new RegExp(term.replace(/[\-\/\\\^$*+?.()|\[\]{}]/g, '\\$&'), 'i'),
                itemsArray = Array.isArray(items) ? items : $.map(items, function (element) {
                    return element;
                }),
                property = this.options.filterProperty;

            return $.grep(
                itemsArray,
                function (value) {
                    return matcher.test(value[property] || value.id || value);
                }
            );
        }
    });

    /**
     * Implement show all functionality and storing and display recent searches
     */
    $.widget('mage.suggest', $.mage.suggest, {
        options: {
            showRecent: false,
            showAll: false,
            storageKey: 'suggest',
            storageLimit: 10
        },

        /**
         * @override
         */
        _create: function () {
            var recentItems;

            if (this.options.showRecent && window.localStorage) {
                recentItems = JSON.parse(localStorage.getItem(this.options.storageKey));

                /**
                 * @type {Array} - list of recently searched items
                 * @private
                 */
                this._recentItems = Array.isArray(recentItems) ? recentItems : [];
            }
            this._super();
        },

        /**
         * @override
         */
        _bind: function () {
            this._super();
            this._on(this.dropdown, {
                /**
                 * @param {jQuery.Event} e
                 */
                showAll: function (e) {
                    e.stopImmediatePropagation();
                    e.preventDefault();
                    this.element.trigger('showAll');
                }
            });

            if (this.options.showRecent || this.options.showAll) {
                this._on({
                    /**
                     * @param {jQuery.Event} e
                     */
                    focus: function (e) {
                        if (!this.isDropdownShown()) {
                            this.search(e);
                        }
                    },
                    showAll: this._showAll
                });
            }
        },

        /**
         * @private
         * @param {Object} e - event object
         */
        _showAll: function (e) {
            this._abortSearch();
            this._search(e, '', {
                _allShown: true
            });
        },

        /**
         * @override
         */
        search: function (e) {
            if (!this._value()) {

                if (this.options.showRecent) {

                    if (this._recentItems.length) { //eslint-disable-line max-depth
                        this._processResponse(e, this._recentItems, {});
                    } else {
                        this._showAll(e);
                    }
                } else if (this.options.showAll) {
                    this._showAll(e);
                }
            }
            this._superApply(arguments);
        },

        /**
         * @override
         */
        _selectItem: function () {
            this._superApply(arguments);

            if (this._selectedItem && this._selectedItem.id && this.options.showRecent) {
                this._addRecent(this._selectedItem);
            }
        },

        /**
         * @override
         */
        _prepareDropdownContext: function () {
            var context = this._superApply(arguments);

            return $.extend(context, {
                recentShown: $.proxy(function () {
                    return this.options.showRecent;
                }, this),
                recentTitle: $.mage.__('Recent items'),
                showAllTitle: $.mage.__('Show all...'),

                /**
                 * @return {Boolean}
                 */
                allShown: function () {
                    return !!context._allShown;
                }
            });
        },

        /**
         * Add selected item of search result into storage of recents
         * @param {Object} item - label+id object
         * @private
         */
        _addRecent: function (item) {
            this._recentItems = $.grep(this._recentItems, function (obj) {
                return obj.id !== item.id;
            });
            this._recentItems.unshift(item);
            this._recentItems = this._recentItems.slice(0, this.options.storageLimit);
            localStorage.setItem(this.options.storageKey, JSON.stringify(this._recentItems));
        }
    });

    /**
     * Implement multi suggest functionality
     */
    $.widget('mage.suggest', $.mage.suggest, {
        options: {
            multiSuggestWrapper: '<ul class="mage-suggest-choices">' +
                '<li class="mage-suggest-search-field" data-role="parent-choice-element"><' +
                'label class="mage-suggest-search-label"></label></li></ul>',
            choiceTemplate: '<li class="mage-suggest-choice button"><div><%- text %></div>' +
            '<span class="mage-suggest-choice-close" tabindex="-1" ' +
            'data-mage-init=\'{"actionLink":{"event":"removeOption"}}\'></span></li>',
            selectedClass: 'mage-suggest-selected'
        },

        /**
         * @override
         */
        _create: function () {
            this.choiceTmpl = mageTemplate(this.options.choiceTemplate);

            this._super();

            if (this.options.multiselect) {
                this.valueField.hide();
            }
        },

        /**
         * @override
         */
        _render: function () {
            this._super();

            if (this.options.multiselect) {
                this._renderMultiselect();
            }
        },

        /**
         * Render selected options
         * @private
         */
        _renderMultiselect: function () {
            var that = this;

            this.element.wrap(this.options.multiSuggestWrapper);
            this.elementWrapper = this.element.closest('[data-role="parent-choice-element"]');
            $(function () {
                that._getOptions()
                    .each(function (i, option) {
                        option = $(option);
                        that._createOption({
                            id: option.val(),
                            label: option.text()
                        });
                    });
            });
        },

        /**
         * @return {Array} array of DOM-elements
         * @private
         */
        _getOptions: function () {
            return this.valueField.find('option');
        },

        /**
         * @override
         */
        _bind: function () {
            this._super();

            if (this.options.multiselect) {
                this._on({
                    /**
                     * @param {jQuery.Event} event
                     */
                    keydown: function (event) {
                        if (event.keyCode === $.ui.keyCode.BACKSPACE) {
                            if (!this._value()) {
                                this._removeLastAdded(event);
                            }
                        }
                    },
                    removeOption: this.removeOption
                });
            }
        },

        /**
         * @param {Array} items
         * @return {Array}
         * @private
         */
        _filterSelected: function (items) {
            var options = this._getOptions();

            return $.grep(items, function (value) {
                var itemSelected = false;

                $.each(options, function () {
                    if (value.id == $(this).val()) { //eslint-disable-line eqeqeq
                        itemSelected = true;
                    }
                });

                return !itemSelected;
            });
        },

        /**
         * @override
         */
        _processResponse: function (e, items, context) {
            if (this.options.multiselect) {
                items = this._filterSelected(items, context);
            }
            this._superApply([e, items, context]);
        },

        /**
         * @override
         */
        _prepareValueField: function () {
            this._super();

            if (this.options.multiselect && !this.options.valueField && this.options.selectedItems) {
                $.each(this.options.selectedItems, $.proxy(function (i, item) {
                    this._addOption(item);
                }, this));
            }
        },

        /**
         * If "multiselect" option is set, then do not need to clear value for hidden select, to avoid losing of
         *      previously selected items
         * @override
         */
        _resetSuggestValue: function () {
            if (!this.options.multiselect) {
                this._super();
            }
        },

        /**
         * @override
         */
        _createValueField: function () {
            if (this.options.multiselect) {
                return $('<select></select>', {
                    type: 'hidden',
                    multiple: 'multiple'
                });
            }

            return this._super();
        },

        /**
         * @override
         */
        _selectItem: function (e) {
            if (this.options.multiselect) {
                if (this._focused) {
                    this._selectedItem = this._focused;

                    /* eslint-disable max-depth */
                    if (this._selectedItem !== this._nonSelectedItem) {
                        this._term = '';
                        this.element.val(this._term);

                        if (this._isItemSelected(this._selectedItem)) {
                            $(e.target).removeClass(this.options.selectedClass);
                            this.removeOption(e, this._selectedItem);
                            this._selectedItem = this._nonSelectedItem;
                        } else {
                            $(e.target).addClass(this.options.selectedClass);
                            this._addOption(e, this._selectedItem);
                        }
                    }

                    /* eslint-enable max-depth */
                }
                this.close(e);
            } else {
                this._superApply(arguments);
            }
        },

        /**
         * @override
         */
        _isItemSelected: function (item) {
            if (this.options.multiselect) {
                return this.valueField.find('option[value=' + item.id + ']').length > 0;
            }

            return this._superApply(arguments);
        },

        /**
         *
         * @param {Object} item
         * @return {Element}
         * @private
         */
        _createOption: function (item) {
            var option = this._getOption(item);

            if (!option.length) {
                option = $('<option>', {
                    value: item.id,
                    selected: true
                }).text(item.label);
            }

            return option.data('renderedOption', this._renderOption(item));
        },

        /**
         * Add selected item in to select options
         * @param {Object} e - event object
         * @param {*} item
         * @private
         */
        _addOption: function (e, item) {
            this.valueField.append(this._createOption(item).data('selectTarget', $(e.target)));
        },

        /**
         * @param {Object|Element} item
         * @return {Element}
         * @private
         */
        _getOption: function (item) {
            return $(item).prop('tagName') ?
                $(item) :
                this.valueField.find('option[value=' + item.id + ']');
        },

        /**
         * Remove last added option
         * @private
         * @param {Object} e - event object
         */
        _removeLastAdded: function (e) {
            var lastAdded = this._getOptions().last();

            if (lastAdded.length) {
                this.removeOption(e, lastAdded);
            }
        },

        /**
         * Remove item from select options
         * @param {Object} e - event object
         * @param {Object} item
         * @private
         */
        removeOption: function (e, item) {
            var option = this._getOption(item),
                selectTarget = option.data('selectTarget');

            if (selectTarget && selectTarget.length) {
                selectTarget.removeClass(this.options.selectedClass);
            }

            option.data('renderedOption').remove();
            option.remove();
        },

        /**
         * Render visual element of selected item
         * @param {Object} item - selected item
         * @private
         */
        _renderOption: function (item) {
            var tmpl = this.choiceTmpl({
                text: item.label
            });

            return $(tmpl)
                .insertBefore(this.elementWrapper)
                .trigger('contentUpdated')
                .on('removeOption', $.proxy(function (e) {
                    this.removeOption(e, item);
                }, this));
        }
    });

    return $.mage.suggest;
});

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