478 lines
14 KiB
JavaScript
478 lines
14 KiB
JavaScript
class Multiselect extends HTMLDivElement {
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constructor() {
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super();
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this.initialized = false;
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this.toSearch = '';
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this.highlighted = 0;
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}
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connectedCallback() {
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if (!this.initialized) {
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for (const child of this.children) {
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switch (child.nodeName) {
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case 'SELECT':
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this.select = child;
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break;
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case 'LABEL':
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this.label = child;
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break;
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}
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}
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if (this.label && this.select) {
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this.init();
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}
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}
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}
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init() {
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this.initialized = true;
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this.select.style.display = 'none';
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for (const option of this.select.options) {
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option.dataset.numerusSearch = Multiselect.normalize(option.textContent);
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}
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this.tags = document.createElement('div');
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this.append(this.tags);
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this.tags.classList.add('tags');
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this.tags.addEventListener('click', () => this.toggle());
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this.search = document.createElement('input');
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this.tags.append(this.search);
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this.search.id = this.select.id;
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this.select.removeAttribute('id');
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this.select.setAttribute('aria-hidden', 'true');
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this.search.setAttribute('spellcheck', 'false');
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this.search.setAttribute('autocomplete', 'false');
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this.search.setAttribute('role', 'combobox');
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this.search.addEventListener('input', (e) => {
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this.open();
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this.filter(e.target.value);
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});
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this.search.addEventListener('keydown', (e) => {
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switch (e.code) {
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case "Enter":
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e.preventDefault();
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this.selectHighlighted();
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break;
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case "ArrowDown":
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if (e.altKey) {
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this.open();
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} else {
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e.preventDefault();
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this.highlightNext();
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}
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break;
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case "ArrowUp":
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if (e.altKey) {
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this.close();
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} else {
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e.preventDefault();
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this.highlightPrev();
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}
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break;
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case "Backspace":
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if (e.target.value === '') {
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this.deselectLast();
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}
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break;
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case "Escape":
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this.close();
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break;
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}
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});
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// Must come after the search input
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this.tags.append(this.label);
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this.options = document.createElement('ul');
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this.append(this.options);
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this.options.id = this.search.id + '-options-' + Array.from(crypto.getRandomValues(new Uint8Array(4))).map(n => n.toString(16)).join('');
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this.search.setAttribute('aria-controls', this.options.id);
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this.options.classList.add('options');
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this.options.setAttribute('role', 'listbox');
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this.close();
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window.addEventListener('focusin', (e) => {
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if (this.contains(e.target)) return;
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this.close();
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});
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document.addEventListener('click', (e) => {
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if (this.contains(e.target)) return;
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if (!e.target.isConnected) return;
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this.close();
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});
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this.rebuild();
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}
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rebuildOptions() {
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this.options.innerHTML = '';
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let highlight = true;
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for (const option of this.select.options) {
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if (!this.isOptionSelectable(option)) {
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continue;
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}
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const li = document.createElement('li');
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this.options.append(li);
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li.id = this.options.id + '-' + option.index;
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li.dataset.index = option.index;
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li.textContent = option.textContent;
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li.addEventListener('click', () => this.selectOption(option, true));
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if (highlight && (option.index >= this.highlighted)) {
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highlight = false;
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this.highlight(null, li);
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}
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}
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if (highlight) {
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this.highlight(null, this.options.querySelector('li:last-child'));
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}
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}
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highlightNext() {
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const current = this.currentHighlighted();
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if (!current) {
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return;
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}
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this.highlight(current, current.nextElementSibling);
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}
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highlightPrev() {
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const current = this.currentHighlighted();
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if (!current) {
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return;
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}
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this.highlight(current, current.previousElementSibling);
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}
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highlight(current, upcoming) {
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if (!upcoming) {
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return;
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}
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if (current) {
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current.classList.remove('highlight');
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}
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upcoming.classList.remove('highlight');
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this.search.setAttribute('aria-activedescendant', upcoming.id);
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this.highlighted = upcoming.dataset.index;
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upcoming.classList.add('highlight');
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}
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currentHighlighted() {
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return document.getElementById(this.search.getAttribute('aria-activedescendant'));
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}
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isOptionSelectable(option) {
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if (!option) {
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return false;
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}
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if (option.selected) {
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return false;
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}
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return this.toSearch === '' || option.dataset.numerusSearch.includes(this.toSearch);
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}
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selectOption(option, selected) {
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if (!option) {
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return;
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}
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option.selected = selected;
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this.toSearch = this.search.value = '';
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this.rebuild();
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}
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selectHighlighted() {
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if (!this.isOpen()) {
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return;
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}
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const option = this.select.options[this.highlighted];
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if (this.isOptionSelectable(option)) {
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this.selectOption(option, true);
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}
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}
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deselectLast() {
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const options = this.select.options;
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for (let i = options.length - 1; i >= 0; i--) {
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const option = options[i];
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if (option.selected) {
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this.selectOption(option, false);
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break;
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}
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}
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}
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rebuild() {
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this.rebuildTags();
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this.rebuildOptions();
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}
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rebuildTags() {
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this.tags.querySelectorAll('.tag').forEach((tag) => tag.remove());
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let empty = true;
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for (const option of this.select.options) {
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if (!option.selected) {
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continue;
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}
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empty = false;
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const tag = document.createElement('div');
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this.tags.insertBefore(tag, this.search);
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tag.classList.add('tag');
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tag.dataset.numerusSearch = option.dataset.numerusSearch;
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const span = document.createElement('span');
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tag.append(span);
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span.textContent = option.textContent;
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const button = document.createElement('button');
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tag.append(button);
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button.type = 'button';
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button.textContent = '×';
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button.addEventListener('click', (e) => {
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e.stopPropagation();
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this.selectOption(option, false)
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});
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}
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if (empty) {
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this.search.setAttribute('placeholder', this.label.textContent);
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} else {
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this.search.removeAttribute('placeholder');
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}
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}
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close() {
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this.options.style.display = 'none';
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this.search.setAttribute('aria-expanded', 'false');
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}
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open() {
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this.options.removeAttribute('style');
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this.search.setAttribute('aria-expanded', 'true');
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}
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toggle() {
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if (this.isOpen()) {
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this.close();
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} else {
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this.open();
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}
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}
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isOpen() {
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return !this.options.hasAttribute('style');
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}
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filter(search) {
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this.toSearch = Multiselect.normalize(search);
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this.rebuildOptions()
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}
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static normalize(s) {
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return s.normalize('NFD').replace(/\p{Diacritic}/gu, '').toLowerCase().trim();
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}
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}
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class Tags extends HTMLDivElement {
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constructor() {
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super();
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this.initialized = false;
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this.tags = [];
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}
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connectedCallback() {
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if (!this.initialized) {
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for (const child of this.children) {
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switch (child.nodeName) {
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case 'INPUT':
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this.input = child;
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break;
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case 'LABEL':
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this.label = child;
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break;
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}
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}
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if (this.label && this.input) {
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this.init();
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}
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}
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}
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init() {
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this.initialized = true;
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this.tagList = document.createElement('div');
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this.append(this.tagList);
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this.tagList.classList.add('tags');
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this.input.type = 'hidden';
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const tagsText = this.input.value.split(',');
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for (const tagText of tagsText) {
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const tagNormalized = Tags.normalize(tagText);
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if (tagNormalized !== '' && this.tags.indexOf(tagNormalized) === -1) {
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this.tags.push(tagNormalized);
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}
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}
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this.search = document.createElement('input');
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this.tagList.append(this.search);
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this.search.id = this.input.id;
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this.input.removeAttribute('id');
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this.input.setAttribute('aria-hidden', 'true');
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this.search.setAttribute('spellcheck', 'false');
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this.search.setAttribute('autocomplete', 'false');
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this.search.addEventListener('keydown', (e) => {
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switch (e.code) {
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case "Space":
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e.preventDefault();
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// fallthrough
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case "Enter":
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if (e.target.value.trim() !== '') {
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e.preventDefault();
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this.createTag();
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}
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break;
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case "Backspace":
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if (e.target.value === '') {
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this.removeLastTag();
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}
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break;
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}
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});
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// Must come after the search input
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this.tagList.append(this.label);
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this.rebuild();
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}
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rebuild() {
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this.input.value = this.tags.join(',');
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this.tagList.querySelectorAll('.tag').forEach((tag) => tag.remove());
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if (this.tags.length === 0) {
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this.search.setAttribute('placeholder', this.label.textContent);
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} else {
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this.search.removeAttribute('placeholder');
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for (const tagText of this.tags) {
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const tag = document.createElement('div');
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this.tagList.insertBefore(tag, this.search);
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tag.classList.add('tag');
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const span = document.createElement('span');
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tag.append(span);
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span.textContent = tagText;
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const button = document.createElement('button');
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tag.append(button);
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button.type = 'button';
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button.textContent = '×';
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button.addEventListener('click', (e) => {
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e.stopPropagation();
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this.removeTag(tagText)
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});
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}
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}
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}
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createTag() {
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const tagText = Tags.normalize(this.search.value);
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this.search.value = '';
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if (this.tags.indexOf(tagText) === -1) {
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this.tags.push(tagText);
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this.rebuild();
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}
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}
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static normalize(s) {
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return s.normalize('NFD').replace(/\p{Diacritic}/gu, '').toLowerCase().trim();
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}
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removeLastTag() {
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this.tags.pop();
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this.rebuild();
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}
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removeTag(tagText) {
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this.tags.splice(this.tags.indexOf(tagText), 1);
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this.rebuild();
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}
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}
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customElements.define('numerus-multiselect', Multiselect, {extends: 'div'});
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customElements.define('numerus-tags', Tags, {extends: 'div'});
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let savedTitle = '';
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htmx.onLoad((target) => {
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if (target.tagName === 'DIALOG') {
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const details = document.querySelectorAll('details[open]');
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for (const detail of details) {
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detail.removeAttribute('open');
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}
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savedTitle = document.title;
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document.title = target.querySelector('h2').textContent + ' — ' + savedTitle.substring(savedTitle.indexOf("—") + 1);
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target.showModal();
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const button = target.querySelector('.close-dialog');
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if (button) {
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button.addEventListener('click', () => {
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htmx.trigger(target, 'closeModal');
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});
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}
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}
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})
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htmx.on('closeModal', () => {
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const openDialog = document.querySelector('dialog[open]');
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if (!openDialog) {
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return;
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}
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openDialog.close();
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openDialog.remove();
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document.title = savedTitle;
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});
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htmx.on(document, 'alpine:init', () => {
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Alpine.data('snackbar', () => ({
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show: false, toast: "", toasts: [], timeoutId: null, init() {
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htmx.on('htmx:error', (error) => {
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this.showError(error.detail.errorInfo.error);
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});
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},
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showError(message) {
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this.toasts.push(message);
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this.popUp();
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},
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popUp() {
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if (this.toasts.length === 0) {
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return;
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}
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if (this.show) {
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this.dismiss();
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return;
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}
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if (this.toast !== "") {
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// It will show after remove calls popUp again.
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return;
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}
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this.toast = this.toasts[0];
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this.show = true;
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this.timeoutId = setTimeout(this.dismiss.bind(this), 4000);
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},
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dismiss() {
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if (!this.show) {
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// already dismissed
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return;
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}
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this.show = false;
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clearTimeout(this.timeoutId);
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this.timeoutId = setTimeout(this.remove.bind(this), 350);
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},
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remove() {
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clearTimeout(this.timeoutId);
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this.toasts.splice(0, 1);
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this.toast = "";
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this.popUp();
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},
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}));
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});
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