jellyfin-web/src/controllers/playback/queue/index.js

import RemoteControl from "../../../components/remotecontrol/remotecontrol";
import { playbackManager } from "../../../components/playback/playbackmanager";
import libraryMenu from "../../../scripts/libraryMenu";
import "../../../elements/emby-button/emby-button";

export default function (view) {
    const remoteControl = new RemoteControl();
    remoteControl.init(view, view.querySelector(".remoteControlContent"));

    let currentPlayer;

    function onKeyDown(e) {
        if (e.keyCode === 32 && e.target.tagName !== "BUTTON") {
            playbackManager.playPause(currentPlayer);
            e.preventDefault();
            e.stopPropagation();
        }
    }

    function releaseCurrentPlayer() {
        const player = currentPlayer;
        if (player) currentPlayer = null;
    }

    function bindToPlayer(player) {
        if (player !== currentPlayer) {
            releaseCurrentPlayer();
            currentPlayer = player;
            if (!player) return;
        }
    }

    view.addEventListener("viewshow", function () {
        libraryMenu.setTransparentMenu(true);
        bindToPlayer(playbackManager.getCurrentPlayer());
        document.addEventListener("keydown", onKeyDown);

        if (remoteControl) {
            remoteControl.onShow();
        }
    });

    view.addEventListener("viewbeforehide", function () {
        libraryMenu.setTransparentMenu(false);
        document.removeEventListener("keydown", onKeyDown);
        releaseCurrentPlayer();

        if (remoteControl) {
            remoteControl.destroy();
        }
    });
}