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LibriVox PlayMaker

Converts audio link on LibriVox page to an audio element loader.

当前为 2023-04-11 提交的版本，查看 最新版本。

// ==UserScript==
// @name         LibriVox PlayMaker
// @namespace    https://vox.quartertone.net/
// @version      1.2
// @description  Converts audio link on LibriVox page to an audio element loader.
// @author       Quartertone
// @icon         https://icons.duckduckgo.com/ip2/github.com.ico
// @grant        none
// @match        *://librivox.org/*
// @exclude      *://librivox.org/search*
// @exclude      *://librivox.org/reader*
// @exclude      *://librivox.org/
// @license      gpl-3.0
// ==/UserScript==

(function() {
    'use strict';
  var btns = document.getElementsByClassName("play-btn");
	if (btns.length > 0) {

  var style = document.createElement("style");
  style.innerHTML = "audio{width:110px;height:2em;position:absolute;} audio:hover{width:25em;} .play-btn{cursor:pointer;display:inline;background:transparent;}";
  document.head.appendChild(style);
  var btnum = 0;
  var previousaudio = null;
  var lastplayed = "PM_Track";
  for (const btn of btns) {
    btn.title = btn.href;
    btn.removeAttribute("href");
    btn.innerHTML = "load";
    btn.nexttrack = btns[++btnum];
    btn.tracknum = btnum;
    btn.parentElement.style.width = "130px";
    btn.onclick = function () {
      let audio = document.createElement("audio");
      audio.controls = true;
      audio.autoplay = true;
      audio.innerHTML = `<source src="${btn.title}" type="audio/mpeg"/>`;
      audio.oncanplay = function () {
        //console.log("button number", btnum);
        //console.log("audio is ready");
        // audio.currentTime = 23;
        audio.currentTime = getCookie(btn.title) ? getCookie(btn.title) : 0;
        if (previousaudio != null)
          previousaudio.pause();
        previousaudio = audio;
        audio.oncanplay = null;
      };
      audio.onplay = function () {
        //console.log("on playyyy");
        createCookie(lastplayed, btn.title);
      };

      audio.ontimeupdate = audio.onpause = function () {
        createCookie(btn.title, this.currentTime);
      };
      audio.onended = function () {
        createCookie(btn.title, 0);
        btn.innerHTML = "played";
        if (btn.nexttrack != undefined) {
          // there is a track after this one
          btn.nexttrack.click();
        } else {
          // end of album
          previousaudio = null;
          createCookie(lastplayed, "");
        }

      };
      btn.innerHTML = "";
      btn.appendChild(audio);
    };
  }

  if (getCookie(lastplayed)) {
    //console.log("lastplayed", getCookie(lastplayed));
    document.querySelector("[title='" + getCookie(lastplayed) + "']").click();
  }

  function createCookie(name, value) {
    window.localStorage.setItem(name, value);
  }

  function getCookie(name) {
    return window.localStorage.getItem(name);
  }
	}
})();