Semi working conditions for the new ui
This commit is contained in:
375
public/js/multiselect.js
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375
public/js/multiselect.js
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/*
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* Created by David Adams
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* https://codeshack.io/multi-select-dropdown-html-javascript/
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*
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* Released under the MIT license
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*/
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class MultiSelect {
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constructor(element, options = {}) {
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let defaults = {
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searchText: 'Search...',
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placeholder: 'Select item(s)',
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max: null,
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min: null,
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disabled: false,
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search: true,
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selectAll: true,
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listAll: true,
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closeListOnItemSelect: false,
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name: '',
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width: '',
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height: '',
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dropdownWidth: '',
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dropdownHeight: '',
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data: [],
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onChange: function() {},
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onSelect: function() {},
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onUnselect: function() {},
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onMaxReached: function() {}
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};
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this.options = Object.assign(defaults, options);
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this.selectElement = typeof element === 'string' ? document.querySelector(element) : element;
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this.originalSelectElement = this.selectElement.cloneNode(true);
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for(const prop in this.selectElement.dataset) {
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if (this.options[prop] !== undefined) {
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if (typeof this.options[prop] === 'boolean') {
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this.options[prop] = this.selectElement.dataset[prop] === 'true';
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} else {
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this.options[prop] = this.selectElement.dataset[prop];
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}
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}
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}
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this.name = this.selectElement.getAttribute('name') ? this.selectElement.getAttribute('name') : 'multi-select-' + Math.floor(Math.random() * 1000000);
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if (!this.options.data.length) {
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let options = this.selectElement.querySelectorAll('option');
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for (let i = 0; i < options.length; i++) {
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this.options.data.push({
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value: options[i].value,
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text: options[i].innerHTML,
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selected: options[i].selected,
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html: options[i].getAttribute('data-html')
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});
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}
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}
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this.originalData = JSON.parse(JSON.stringify(this.options.data));
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this.element = this._template();
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this.selectElement.replaceWith(this.element);
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this.outsideClickHandler = this._outsideClick.bind(this);
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this._updateSelected();
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this._eventHandlers();
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if (this.options.disabled) {
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this.disable();
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}
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}
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_template() {
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let optionsHTML = '';
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for (let i = 0; i < this.data.length; i++) {
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const isSelected = this.data[i].selected;
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optionsHTML += `
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<div class="multi-select-option${isSelected ? ' multi-select-selected' : ''}" data-value="${this.data[i].value}" role="option" aria-selected="${isSelected}" tabindex="-1">
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<span class="multi-select-option-radio"></span>
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<span class="multi-select-option-text">${this.data[i].html ? this.data[i].html : this.data[i].text}</span>
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</div>
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`;
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}
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let selectAllHTML = '';
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if (this.options.selectAll) {
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selectAllHTML = `<div class="multi-select-all" role="option" tabindex="-1">
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<span class="multi-select-option-radio"></span>
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<span class="multi-select-option-text">Select all</span>
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</div>`;
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}
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let template = `
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<div class="multi-select ${this.name}"${this.selectElement.id ? ' id="' + this.selectElement.id + '"' : ''} style="${this.width ? 'width:' + this.width + ';' : ''}${this.height ? 'height:' + this.height + ';' : ''}" role="combobox" aria-haspopup="listbox" aria-expanded="false">
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${this.selectedValues.map(value => `<input type="hidden" name="${this.name}[]" value="${value}">`).join('')}
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<div class="multi-select-header" style="${this.width ? 'width:' + this.width + ';' : ''}${this.height ? 'height:' + this.height + ';' : ''}" tabindex="0">
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<span class="multi-select-header-max">${this.options.max ? this.selectedValues.length + '/' + this.options.max : ''}</span>
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<span class="multi-select-header-placeholder">${this.placeholder}</span>
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</div>
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<div class="multi-select-options" style="${this.options.dropdownWidth ? 'width:' + this.options.dropdownWidth + ';' : ''}${this.options.dropdownHeight ? 'height:' + this.options.dropdownHeight + ';' : ''}" role="listbox">
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${this.options.search ? '<input type="text" class="multi-select-search" placeholder="' + this.searchText + '" role="searchbox">' : ''}
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${selectAllHTML}
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${optionsHTML}
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</div>
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</div>
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`;
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let element = document.createElement('div');
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element.innerHTML = template;
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return element.firstElementChild;
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}
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_eventHandlers() {
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let headerElement = this.element.querySelector('.multi-select-header');
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const toggleDropdown = (forceClose = false) => {
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if (this.element.classList.contains('disabled')) return;
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if (forceClose || headerElement.classList.contains('multi-select-header-active')) {
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headerElement.classList.remove('multi-select-header-active');
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this.element.setAttribute('aria-expanded', 'false');
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} else {
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headerElement.classList.add('multi-select-header-active');
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this.element.setAttribute('aria-expanded', 'true');
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}
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};
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this.element.querySelectorAll('.multi-select-option').forEach(option => {
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option.onclick = (e) => {
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e.stopPropagation();
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if (this.element.classList.contains('disabled')) return;
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let selected = true;
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if (!option.classList.contains('multi-select-selected')) {
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if (this.options.max && this.selectedValues.length >= this.options.max) {
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this.options.onMaxReached(this.options.max);
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return;
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}
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option.classList.add('multi-select-selected');
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option.setAttribute('aria-selected', 'true');
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this.element.insertAdjacentHTML('afterbegin', `<input type="hidden" name="${this.name}[]" value="${option.dataset.value}">`);
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this.data.find(data => data.value == option.dataset.value).selected = true;
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} else {
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option.classList.remove('multi-select-selected');
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option.setAttribute('aria-selected', 'false');
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this.element.querySelector(`input[value="${option.dataset.value}"]`).remove();
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this.data.find(data => data.value == option.dataset.value).selected = false;
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selected = false;
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}
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this._updateHeader();
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if (this.options.search) {
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this.element.querySelector('.multi-select-search').value = '';
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this.element.querySelectorAll('.multi-select-option').forEach(opt => opt.style.display = 'flex');
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}
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if (this.options.closeListOnItemSelect) {
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toggleDropdown(true);
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}
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this.options.onChange(option.dataset.value, option.querySelector('.multi-select-option-text').innerHTML, option);
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if (selected) {
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this.options.onSelect(option.dataset.value, option.querySelector('.multi-select-option-text').innerHTML, option);
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} else {
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this.options.onUnselect(option.dataset.value, option.querySelector('.multi-select-option-text').innerHTML, option);
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}
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this._validate();
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};
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});
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headerElement.onclick = () => toggleDropdown();
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if (this.options.search) {
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let search = this.element.querySelector('.multi-select-search');
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search.oninput = () => {
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this.element.querySelectorAll('.multi-select-option').forEach(option => {
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const text = option.querySelector('.multi-select-option-text').innerHTML.toLowerCase();
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option.style.display = text.includes(search.value.toLowerCase()) ? 'flex' : 'none';
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});
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};
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}
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if (this.options.selectAll) {
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let selectAllButton = this.element.querySelector('.multi-select-all');
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selectAllButton.onclick = (e) => {
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e.stopPropagation();
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if (this.element.classList.contains('disabled')) return;
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let allSelected = selectAllButton.classList.contains('multi-select-selected');
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this.element.querySelectorAll('.multi-select-option').forEach(option => {
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let dataItem = this.data.find(data => data.value == option.dataset.value);
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if (dataItem && ((allSelected && dataItem.selected) || (!allSelected && !dataItem.selected))) {
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option.click();
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}
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});
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selectAllButton.classList.toggle('multi-select-selected');
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};
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}
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if (this.selectElement.id && document.querySelector('label[for="' + this.selectElement.id + '"]')) {
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document.querySelector('label[for="' + this.selectElement.id + '"]').onclick = () => {
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toggleDropdown();
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};
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}
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document.addEventListener('click', this.outsideClickHandler);
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headerElement.addEventListener('keydown', (e) => {
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if (['Enter', ' ', 'ArrowDown', 'ArrowUp'].includes(e.key)) {
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e.preventDefault();
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toggleDropdown();
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const firstElement = this.element.querySelector('[role="searchbox"]') || this.element.querySelector('[role="option"]');
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if (firstElement) firstElement.focus();
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}
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});
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this.element.addEventListener('keydown', (e) => {
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if (e.key === 'Escape') {
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toggleDropdown(true);
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headerElement.focus();
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}
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});
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const optionsContainer = this.element.querySelector('.multi-select-options');
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optionsContainer.addEventListener('keydown', (e) => {
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const currentFocused = document.activeElement;
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if (currentFocused.closest('.multi-select-options')) {
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if (['ArrowDown', 'ArrowUp'].includes(e.key)) {
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e.preventDefault();
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const direction = e.key === 'ArrowDown' ? 'nextElementSibling' : 'previousElementSibling';
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let nextElement = currentFocused[direction];
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while (nextElement && (nextElement.style.display === 'none' || !nextElement.matches('[role="option"], [role="searchbox"]'))) {
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nextElement = nextElement[direction];
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}
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if (nextElement) nextElement.focus();
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} else if (['Enter', ' '].includes(e.key) && currentFocused.matches('[role="option"]')) {
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e.preventDefault();
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currentFocused.click();
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}
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}
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});
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}
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_updateHeader() {
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this.element.querySelectorAll('.multi-select-header-option, .multi-select-header-placeholder').forEach(el => el.remove());
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if (this.selectedValues.length > 0) {
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if (this.options.listAll) {
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this.selectedItems.forEach(item => {
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const el = document.createElement('span');
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el.className = 'multi-select-header-option';
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el.dataset.value = item.value;
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el.innerHTML = item.text;
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this.element.querySelector('.multi-select-header').prepend(el);
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});
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} else {
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this.element.querySelector('.multi-select-header').insertAdjacentHTML('afterbegin', `<span class="multi-select-header-option">${this.selectedValues.length} selected</span>`);
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}
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} else {
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this.element.querySelector('.multi-select-header').insertAdjacentHTML('beforeend', `<span class="multi-select-header-placeholder">${this.placeholder}</span>`);
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}
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if (this.options.max) {
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this.element.querySelector('.multi-select-header-max').innerHTML = this.selectedValues.length + '/' + this.options.max;
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}
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}
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_updateSelected() { this._updateHeader(); }
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_validate() {
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if (this.options.min && this.selectedValues.length < this.options.min) {
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this.element.classList.add('multi-select-invalid');
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} else {
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this.element.classList.remove('multi-select-invalid');
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}
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}
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_outsideClick(event) {
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if (!this.element.contains(event.target) && !event.target.closest('label[for="' + this.selectElement.id + '"]')) {
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let headerElement = this.element.querySelector('.multi-select-header');
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if (headerElement.classList.contains('multi-select-header-active')) {
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headerElement.classList.remove('multi-select-header-active');
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this.element.setAttribute('aria-expanded', 'false');
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}
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}
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}
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select(value) {
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const option = this.element.querySelector(`.multi-select-option[data-value="${value}"]`);
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if (option && !option.classList.contains('multi-select-selected')) {
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option.click();
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}
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}
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unselect(value) {
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const option = this.element.querySelector(`.multi-select-option[data-value="${value}"]`);
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if (option && option.classList.contains('multi-select-selected')) {
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option.click();
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}
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}
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setValues(values) {
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this.data.forEach(item => {
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item.selected = values.includes(item.value);
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});
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this.refresh();
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}
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disable() {
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this.element.classList.add('disabled');
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this.element.querySelector('.multi-select-header').removeAttribute('tabindex');
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const searchInput = this.element.querySelector('.multi-select-search');
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if (searchInput) searchInput.disabled = true;
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}
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enable() {
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this.element.classList.remove('disabled');
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this.element.querySelector('.multi-select-header').setAttribute('tabindex', '0');
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const searchInput = this.element.querySelector('.multi-select-search');
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if (searchInput) searchInput.disabled = false;
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}
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destroy() {
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this.element.replaceWith(this.originalSelectElement);
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document.removeEventListener('click', this.outsideClickHandler);
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}
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refresh() {
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const newElement = this._template();
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this.element.replaceWith(newElement);
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this.element = newElement;
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this._updateSelected();
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this._eventHandlers();
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this._validate();
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}
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addItem(item) {
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this.options.data.push(item);
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this.refresh();
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}
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addItems(items) {
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this.options.data.push(...items);
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this.refresh();
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}
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async fetch(url, options = {}) {
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const response = await fetch(url, options);
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const data = await response.json();
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this.addItems(data);
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if (this.options.onload) {
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this.options.onload(data, this.options);
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}
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}
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removeItem(value) {
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this.options.data = this.options.data.filter(item => item.value !== value);
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this.refresh();
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}
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clear() {
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this.options.data = [];
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this.refresh();
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}
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reset() {
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this.data = JSON.parse(JSON.stringify(this.originalData));
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this.refresh();
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}
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selectAll() {
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this.data.forEach(item => item.selected = true);
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this.refresh();
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}
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get selectedValues() { return this.data.filter(d => d.selected).map(d => d.value); }
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get selectedItems() { return this.data.filter(d => d.selected); }
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get data() { return this.options.data; }
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set data(value) { this.options.data = value; }
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set selectElement(value) { this.options.selectElement = value; }
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get selectElement() { return this.options.selectElement; }
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set element(value) { this.options.element = value; }
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get element() { return this.options.element; }
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set searchText(value) { this.options.searchText = value; }
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get searchText() { return this.options.searchText; }
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set placeholder(value) { this.options.placeholder = value; }
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get placeholder() { return this.options.placeholder; }
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set name(value) { this.options.name = value; }
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get name() { return this.options.name; }
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set width(value) { this.options.width = value; }
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get width() { return this.options.width; }
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set height(value) { this.options.height = value; }
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get height() { return this.options.height; }
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}
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document.querySelectorAll('[data-multi-select]').forEach(select => new MultiSelect(select));
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Reference in New Issue
Block a user