查看“MediaWiki:Common.js”的源代码

$(function () {
  // 在线人数统计区块
  var $counter = $('<div id="online-counter">当前在线 <span style="color:#a782ff;">👥</span>: <span id="online-number">加载中...</span></div>');
  $('body').append($counter);

  // 获取在线人数
  function updateOnlineNumber() {
    $.getJSON('/api/online.php', function (data) {
      $('#online-number').text(data.count || 0);
    }).fail(function () {
      $('#online-number').text('获取失败');
    });
  }

  updateOnlineNumber();
  setInterval(updateOnlineNumber, 30000); // 每 30 秒刷新一次

  // 如果你不想用这个文件，可以删除下面这行
   mw.loader.load("/js/player-init.js");
});
const audio = new Audio();
let currentIndex = 0;
let playlist = [];

navigator.serviceWorker.addEventListener("message", (event) => {
  if (event.data?.type === "PLAYLIST") {
    playlist = event.data.tracks || [];
    playTrack(currentIndex);
  }
});

function playTrack(index) {
  if (!playlist[index]) return;
  audio.src = playlist[index];
  audio.play();
}

function send(type) {
  navigator.serviceWorker.controller?.postMessage({ type });
}

document.querySelector("button[data-action='PLAY']").onclick = () => playTrack(currentIndex);
document.querySelector("button[data-action='NEXT']").onclick = () => {
  currentIndex = (currentIndex + 1) % playlist.length;
  playTrack(currentIndex);
};
document.querySelector("button[data-action='PREV']").onclick = () => {
  currentIndex = (currentIndex - 1 + playlist.length) % playlist.length;
  playTrack(currentIndex);
};
document.querySelector("button[data-action='PAUSE']").onclick = () => audio.pause();