initial commit
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buzz-lightsnack-2007
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479
node_modules/@materializecss/materialize/js/autocomplete.js
generated
vendored
Executable file
479
node_modules/@materializecss/materialize/js/autocomplete.js
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Executable file
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(function($) {
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'use strict';
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let _defaults = {
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data: {}, // Autocomplete data set
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limit: Infinity, // Limit of results the autocomplete shows
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onAutocomplete: null, // Callback for when autocompleted
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dropdownOptions: {
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// Default dropdown options
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autoFocus: false,
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closeOnClick: false,
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coverTrigger: false
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},
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minLength: 1, // Min characters before autocomplete starts
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sortFunction: function(a, b, inputString) {
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// Sort function for sorting autocomplete results
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return a.indexOf(inputString) - b.indexOf(inputString);
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},
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allowUnsafeHTML: false
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};
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/**
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* @class
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*
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*/
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class Autocomplete extends Component {
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/**
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* Construct Autocomplete instance
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* @constructor
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* @param {Element} el
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* @param {Object} options
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*/
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constructor(el, options) {
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super(Autocomplete, el, options);
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this.el.M_Autocomplete = this;
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/**
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* Options for the autocomplete
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* @member Autocomplete#options
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* @prop {Number} duration
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* @prop {Number} dist
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* @prop {number} shift
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* @prop {number} padding
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* @prop {Boolean} fullWidth
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* @prop {Boolean} indicators
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* @prop {Boolean} noWrap
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* @prop {Function} onCycleTo
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*/
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this.options = $.extend({}, Autocomplete.defaults, options);
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// Setup
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this.isOpen = false;
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this.count = 0;
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this.activeIndex = -1;
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this.oldVal;
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this.$inputField = this.$el.closest('.input-field');
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this.$active = $();
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this._mousedown = false;
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this._setupDropdown();
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this._setupEventHandlers();
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}
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static get defaults() {
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return _defaults;
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}
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static init(els, options) {
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return super.init(this, els, options);
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}
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/**
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* Get Instance
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*/
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static getInstance(el) {
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let domElem = !!el.jquery ? el[0] : el;
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return domElem.M_Autocomplete;
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}
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/**
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* Teardown component
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*/
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destroy() {
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this._removeEventHandlers();
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this._removeDropdown();
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this.el.M_Autocomplete = undefined;
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}
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/**
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* Setup Event Handlers
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*/
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_setupEventHandlers() {
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this._handleInputBlurBound = this._handleInputBlur.bind(this);
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this._handleInputKeyupAndFocusBound = this._handleInputKeyupAndFocus.bind(this);
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this._handleInputKeydownBound = this._handleInputKeydown.bind(this);
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this._handleInputClickBound = this._handleInputClick.bind(this);
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this._handleContainerMousedownAndTouchstartBound = this._handleContainerMousedownAndTouchstart.bind(
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this
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);
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this._handleContainerMouseupAndTouchendBound = this._handleContainerMouseupAndTouchend.bind(
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this
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);
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this.el.addEventListener('blur', this._handleInputBlurBound);
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this.el.addEventListener('keyup', this._handleInputKeyupAndFocusBound);
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this.el.addEventListener('focus', this._handleInputKeyupAndFocusBound);
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this.el.addEventListener('keydown', this._handleInputKeydownBound);
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this.el.addEventListener('click', this._handleInputClickBound);
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this.container.addEventListener(
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'mousedown',
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this._handleContainerMousedownAndTouchstartBound
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);
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this.container.addEventListener('mouseup', this._handleContainerMouseupAndTouchendBound);
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if (typeof window.ontouchstart !== 'undefined') {
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this.container.addEventListener(
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'touchstart',
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this._handleContainerMousedownAndTouchstartBound
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);
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this.container.addEventListener('touchend', this._handleContainerMouseupAndTouchendBound);
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}
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}
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/**
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* Remove Event Handlers
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*/
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_removeEventHandlers() {
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this.el.removeEventListener('blur', this._handleInputBlurBound);
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this.el.removeEventListener('keyup', this._handleInputKeyupAndFocusBound);
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this.el.removeEventListener('focus', this._handleInputKeyupAndFocusBound);
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this.el.removeEventListener('keydown', this._handleInputKeydownBound);
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this.el.removeEventListener('click', this._handleInputClickBound);
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this.container.removeEventListener(
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'mousedown',
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this._handleContainerMousedownAndTouchstartBound
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);
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this.container.removeEventListener('mouseup', this._handleContainerMouseupAndTouchendBound);
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if (typeof window.ontouchstart !== 'undefined') {
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this.container.removeEventListener(
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'touchstart',
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this._handleContainerMousedownAndTouchstartBound
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);
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this.container.removeEventListener(
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'touchend',
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this._handleContainerMouseupAndTouchendBound
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);
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}
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}
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/**
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* Setup dropdown
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*/
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_setupDropdown() {
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this.container = document.createElement('ul');
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this.container.id = `autocomplete-options-${M.guid()}`;
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$(this.container).addClass('autocomplete-content dropdown-content');
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this.$inputField.append(this.container);
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this.el.setAttribute('data-target', this.container.id);
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// Initialize dropdown
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let dropdownOptions = $.extend(
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{},
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Autocomplete.defaults.dropdownOptions,
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this.options.dropdownOptions
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);
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let userOnItemClick = dropdownOptions.onItemClick;
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// Ensuring the selectOption call when user passes custom onItemClick function to dropdown
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dropdownOptions.onItemClick = (el) => {
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this.selectOption($(el));
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// Handle user declared onItemClick if needed
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if (userOnItemClick && typeof userOnItemClick === 'function') {
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userOnItemClick.call(this.dropdown, this.el);
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}
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};
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this.dropdown = M.Dropdown.init(this.el, dropdownOptions);
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// Sketchy removal of dropdown click handler
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this.el.removeEventListener('click', this.dropdown._handleClickBound);
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}
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/**
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* Remove dropdown
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*/
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_removeDropdown() {
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this.container.parentNode.removeChild(this.container);
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}
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/**
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* Handle Input Blur
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*/
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_handleInputBlur() {
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if (!this._mousedown) {
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this.close();
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this._resetAutocomplete();
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}
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}
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/**
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* Handle Input Keyup and Focus
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* @param {Event} e
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*/
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_handleInputKeyupAndFocus(e) {
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if (e.type === 'keyup') {
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Autocomplete._keydown = false;
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}
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this.count = 0;
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let val = this.el.value.toLowerCase();
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// Don't capture enter or arrow key usage.
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if (e.keyCode === 13 || e.keyCode === 38 || e.keyCode === 40) {
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return;
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}
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// Check if the input isn't empty
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// Check if focus triggered by tab
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if (this.oldVal !== val && (M.tabPressed || e.type !== 'focus')) {
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this.open();
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}
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// Update oldVal
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this.oldVal = val;
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}
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/**
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* Handle Input Keydown
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* @param {Event} e
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*/
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_handleInputKeydown(e) {
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Autocomplete._keydown = true;
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// Arrow keys and enter key usage
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let keyCode = e.keyCode,
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liElement,
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numItems = $(this.container).children('li').length;
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// select element on Enter
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if (keyCode === M.keys.ENTER && this.activeIndex >= 0) {
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liElement = $(this.container)
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.children('li')
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.eq(this.activeIndex);
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if (liElement.length) {
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this.selectOption(liElement);
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e.preventDefault();
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}
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return;
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}
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// Capture up and down key
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if (keyCode === M.keys.ARROW_UP || keyCode === M.keys.ARROW_DOWN) {
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e.preventDefault();
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if (keyCode === M.keys.ARROW_UP && this.activeIndex > 0) {
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this.activeIndex--;
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}
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if (keyCode === M.keys.ARROW_DOWN && this.activeIndex < numItems - 1) {
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this.activeIndex++;
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}
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this.$active.removeClass('active');
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if (this.activeIndex >= 0) {
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this.$active = $(this.container)
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.children('li')
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.eq(this.activeIndex);
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this.$active.addClass('active');
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// Focus selected
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this.container.children[this.activeIndex].scrollIntoView({
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behavior: 'smooth',
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block: 'nearest',
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inline: 'nearest'
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});
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}
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}
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}
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/**
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* Handle Input Click
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* @param {Event} e
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*/
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_handleInputClick(e) {
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this.open();
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}
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/**
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* Handle Container Mousedown and Touchstart
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* @param {Event} e
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*/
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_handleContainerMousedownAndTouchstart(e) {
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this._mousedown = true;
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}
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/**
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* Handle Container Mouseup and Touchend
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* @param {Event} e
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*/
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_handleContainerMouseupAndTouchend(e) {
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this._mousedown = false;
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}
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/**
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* Highlight partial match
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*/
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_highlight(input, label) {
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const start = label.toLowerCase().indexOf('' + input.toLowerCase() + '');
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const end = start + input.length - 1;
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//custom filters may return results where the string does not match any part
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if (start == -1 || end == -1) {
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return [label, '', ''];
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}
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return [label.slice(0, start), label.slice(start, end + 1), label.slice(end + 1)];
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}
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/**
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* Reset current element position
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*/
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_resetCurrentElement() {
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this.activeIndex = -1;
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this.$active.removeClass('active');
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}
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/**
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* Reset autocomplete elements
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*/
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_resetAutocomplete() {
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$(this.container).empty();
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this._resetCurrentElement();
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this.oldVal = null;
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this.isOpen = false;
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this._mousedown = false;
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}
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/**
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* Select autocomplete option
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* @param {Element} el Autocomplete option list item element
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*/
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selectOption(el) {
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let text = el.text().trim();
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this.el.value = text;
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this.$el.trigger('change');
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this._resetAutocomplete();
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this.close();
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// Handle onAutocomplete callback.
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if (typeof this.options.onAutocomplete === 'function') {
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this.options.onAutocomplete.call(this, text);
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}
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}
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/**
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* Render dropdown content
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* @param {Object} data data set
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* @param {String} val current input value
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*/
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_renderDropdown(data, val) {
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this._resetAutocomplete();
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let matchingData = [];
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// Gather all matching data
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for (let key in data) {
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if (data.hasOwnProperty(key) && key.toLowerCase().indexOf(val) !== -1) {
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let entry = {
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data: data[key],
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key: key
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};
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matchingData.push(entry);
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this.count++;
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}
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}
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// Sort
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if (this.options.sortFunction) {
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let sortFunctionBound = (a, b) => {
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return this.options.sortFunction(
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a.key.toLowerCase(),
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b.key.toLowerCase(),
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val.toLowerCase()
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);
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};
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matchingData.sort(sortFunctionBound);
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}
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// Limit
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matchingData = matchingData.slice(0, this.options.limit);
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// Render
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for (let i = 0; i < matchingData.length; i++) {
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const entry = matchingData[i];
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const item = document.createElement('li');
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if (!!entry.data) {
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const img = document.createElement('img');
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img.classList.add('right', 'circle');
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img.src = entry.data;
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item.appendChild(img);
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}
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const parts = this._highlight(val, entry.key);
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const s = document.createElement('span');
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if (this.options.allowUnsafeHTML) {
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s.innerHTML = parts[0] + '<span class="highlight">' + parts[1] + '</span>' + parts[2];
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} else {
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s.appendChild(document.createTextNode(parts[0]));
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if (!!parts[1]) {
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const highlight = document.createElement('span');
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highlight.textContent = parts[1];
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highlight.classList.add('highlight');
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s.appendChild(highlight);
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s.appendChild(document.createTextNode(parts[2]));
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}
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}
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item.appendChild(s);
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$(this.container).append(item);
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}
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}
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/**
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* Open Autocomplete Dropdown
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*/
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open() {
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let val = this.el.value.toLowerCase();
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this._resetAutocomplete();
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if (val.length >= this.options.minLength) {
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this.isOpen = true;
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this._renderDropdown(this.options.data, val);
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}
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// Open dropdown
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if (!this.dropdown.isOpen) {
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this.dropdown.open();
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} else {
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// Recalculate dropdown when its already open
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this.dropdown.recalculateDimensions();
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}
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}
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/**
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* Close Autocomplete Dropdown
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*/
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close() {
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this.dropdown.close();
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}
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/**
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* Update Data
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* @param {Object} data
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*/
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updateData(data) {
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let val = this.el.value.toLowerCase();
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this.options.data = data;
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if (this.isOpen) {
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this._renderDropdown(data, val);
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}
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}
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}
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/**
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* @static
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||||
* @memberof Autocomplete
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||||
*/
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||||
Autocomplete._keydown = false;
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||||
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M.Autocomplete = Autocomplete;
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if (M.jQueryLoaded) {
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M.initializeJqueryWrapper(Autocomplete, 'autocomplete', 'M_Autocomplete');
|
||||
}
|
||||
})(cash);
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||||
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