145 lines
4.0 KiB
JavaScript
145 lines
4.0 KiB
JavaScript
import $ from 'jquery';
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import Events from "../_events";
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const FormStorage = (($) => {
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// Constants
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const NAME = 'jsFormStorage';
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const DATA_KEY = NAME;
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const STORAGE = window.localStorage;
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class FormStorage {
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constructor(element) {
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const ui = this;
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const $element = $(element);
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const $elements = $element.find('input, textarea, select');
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const setRangeValues = function(el) {
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let $el = $(el);
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$el.siblings('.value').text($el.val());
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};
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ui._element = element;
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$element.data(DATA_KEY, this);
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$element.addClass(`${NAME}-active`);
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// restore form data from localStorage
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$elements.each((i, el) => {
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const $el = $(el);
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const id = $el.attr('id');
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const type = $el.attr('type');
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const val = STORAGE.getItem(NAME + id);
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if (id && val && type) {
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if (type && (type === 'checkbox' || type === 'radio')) {
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$el.prop('checked', val);
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} else {
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$el.val(val);
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}
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}
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$el.trigger(Events.RESTORE_FIELD);
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});
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// range fields
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$('input[type="range"]').each((i, el) => {
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setRangeValues(el);
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});
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$element.trigger(Events.RESTORE_FIELD);
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$('input[type="range"]').on('change', (e) => {
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setRangeValues(e.currentTarget);
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});
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// store form data into localStorage
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$elements.on('change', (e) => {
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const $el = $(e.currentTarget);
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const id = $el.attr('id');
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const type = $el.attr('type');
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// skip some elements
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if ($el.hasClass('no-storage')) {
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return true;
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}
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let val = $el.val();
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if (type && (type === 'checkbox' || type === 'radio')) {
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val = !!$el.is(':checked');
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}
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if (id && type && type !== 'password') {
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STORAGE.setItem(NAME + id, val);
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}
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});
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$element.on('submit', () => {
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$element.data(DATA_KEY).clear();
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});
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$element.find('button,[type="submit"],[type="clear"]').on('click', () => {
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$element.data(DATA_KEY).clear();
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});
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$element.addClass(`${NAME}-active`);
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$element.trigger(Events.FORM_INIT_STORAGE);
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}
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// Public methods
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dispose() {
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const $element = $(this._element);
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$element.removeClass(`${NAME}-active`);
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$.removeData(this._element, DATA_KEY);
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this._element = null;
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}
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clear() {
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STORAGE.clear();
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}
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static _jQueryInterface() {
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if (typeof window.localStorage !== 'undefined') {
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return this.each(function() {
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// attach functionality to element
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const $element = $(this);
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let data = $element.data(DATA_KEY);
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if (!data) {
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data = new FormStorage(this);
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$element.data(DATA_KEY, data);
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}
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});
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}
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}
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}
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// jQuery interface
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$.fn[NAME] = FormStorage._jQueryInterface;
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$.fn[NAME].Constructor = FormStorage;
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$.fn[NAME].noConflict = function() {
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$.fn[NAME] = JQUERY_NO_CONFLICT;
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return FormStorage._jQueryInterface;
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};
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// auto-apply
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$(window).on(`${Events.AJAX} ${Events.LOADED}`, () => {
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$('form').each((i, el) => {
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const $el = $(el);
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// skip some forms
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if ($el.hasClass('no-storage')) {
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return true;
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}
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$el.jsFormStorage();
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});
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});
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return FormStorage;
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})($);
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export default FormStorage;
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