67 lines
1.7 KiB
JavaScript
67 lines
1.7 KiB
JavaScript
import * as mpd from "../mpd.js";
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import * as mpdMock from "../mpd-mock.js";
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import * as html from "../html.js";
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function initIcons() {
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Array.from(document.querySelectorAll("[data-icon]")).forEach(/** @param {HTMLElement} node */ node => {
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node.dataset.icon.split(" ").forEach(name => {
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let icon = html.icon(name);
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node.insertBefore(icon, node.firstChild);
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})
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});
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}
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async function initMpd(app) {
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try {
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await mpd.init(app);
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return mpd;
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} catch (e) {
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return mpdMock;
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}
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}
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class App extends HTMLElement {
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static get observedAttributes() { return ["component"]; }
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constructor() {
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super();
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initIcons();
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}
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async connectedCallback() {
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this.mpd = await initMpd(this);
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const children = Array.from(this.querySelectorAll("*"));
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const names = children.map(node => node.nodeName.toLowerCase())
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.filter(name => name.startsWith("cyp-"));
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const unique = new Set(names);
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const promises = [...unique].map(name => customElements.whenDefined(name));
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await Promise.all(promises);
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this.dispatchEvent(new CustomEvent("load"));
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const onHashChange = () => {
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const component = location.hash.substring(1) || "queue";
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if (component != this.component) { this.component = component; }
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}
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window.addEventListener("hashchange", onHashChange);
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onHashChange();
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}
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attributeChangedCallback(name, oldValue, newValue) {
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switch (name) {
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case "component":
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location.hash = newValue;
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const e = new CustomEvent("component-change");
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this.dispatchEvent(e);
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break;
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}
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}
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get component() { return this.getAttribute("component"); }
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set component(component) { this.setAttribute("component", component); }
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}
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customElements.define("cyp-app", App);
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