cyp/app/js/elements/yt.js
2020-03-16 22:57:13 +01:00

89 lines
No EOL
1.9 KiB
JavaScript

import * as html from "../html.js";
import * as conf from "../conf.js";
import { escape } from "../mpd.js";
import Component from "../component.js";
import Search from "./search.js";
import Result from "./yt-result.js";
const decoder = new TextDecoder("utf-8");
function decodeChunk(byteArray) {
// \r => \n
return decoder.decode(byteArray).replace(/\u000d/g, "\n");
}
class YT extends Component {
constructor() {
super();
this._search = new Search();
this._search.onSubmit = _ => {
let query = this._search.value;
query && this._doSearch(query);
}
}
connectedCallback() {
super.connectedCallback();
this._clear();
}
_clear() {
html.clear(this);
this.appendChild(this._search);
}
async _doSearch(query) {
this._clear();
this._search.pending(true);
let response = await fetch(`/youtube?q=${encodeURIComponent(query)}`);
let results = await response.json();
this._search.pending(false);
results.forEach(result => {
let node = new Result(result.title);
this.appendChild(node);
node.addButton("download", () => this._download(result.id));
});
}
async _download(id) {
this._clear();
let pre = html.node("pre", {}, "", this);
this._search.pending(true);
let body = new URLSearchParams();
body.set("id", id);
let response = await fetch("/youtube", {method:"POST", body});
let reader = response.body.getReader();
while (true) {
let { done, value } = await reader.read();
if (done) { break; }
pre.textContent += decodeChunk(value);
pre.scrollTop = pre.scrollHeight;
}
reader.releaseLock();
this._search.pending(false);
if (response.status == 200) {
this._mpd.command(`update ${escape(conf.ytPath)}`);
}
}
_onComponentChange(c, isThis) {
const wasHidden = this.hidden;
this.hidden = !isThis;
if (!wasHidden && isThis) { this._showRoot(); }
}
}
customElements.define("cyp-yt", YT);