Royal Road Download Button

Adds "Download All Chapters" button to Royal Road fictions
当前为 2023-05-19 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name        Royal Road Download Button
// @license     MIT
// @namespace   rtonne
// @match       https://www.royalroad.com/fiction/*
// @exlcude     https://www.royalroad.com/fiction/*/chapter/*
// @grant       none
// @version     1.0
// @author      Rtonne
// @description Adds "Download All Chapters" button to Royal Road fictions
// @require     https://cdn.jsdelivr.net/npm/[email protected]
// @require     https://cdn.jsdelivr.net/npm/[email protected]
// ==/UserScript==

const row = document.createElement("div");
row.className = "row reduced-gutter";

const col = document.createElement("div");
col.className = "col-xs-12";
row.appendChild(col);

const button = document.createElement("button");
button.className = "button-icon-large";
col.appendChild(button);

const buttonStyle = getComputedStyle(button);
const progressBar = document.createElement("div");
progressBar.style.position = "absolute";
progressBar.style.top = "48px";
progressBar.style.right = "0";
progressBar.style.marginRight = "15px";
progressBar.style.height = "2px";
progressBar.style.background = "#67809f";
progressBar.style.width = "0";
progressBar.className = "RRScraperProgressBar";
col.appendChild(progressBar);

const i = document.createElement("i");
i.className = "fa fa-download";
button.appendChild(i);

const span = document.createElement("span");
span.innerText = "Download All Chapters";
span.className = "center";
button.appendChild(span);

const defaultButtonRows = document.querySelectorAll("div.row.reduced-gutter");
defaultButtonRows.forEach((defaultButtonRow) => {
  const rowClone = row.cloneNode(true);
  rowClone.onclick = () => {
    download();
  };
  defaultButtonRow.insertAdjacentElement("afterend", rowClone);
});

async function download() {
  document.querySelectorAll("div.RRScraperProgressBar").forEach(element => {
    element.style.width = "calc(100% - 30px)";
  });

  const parser = new DOMParser();
  const zip = new JSZip();
  const fictionName = window.location.href.split("/")[window.location.href.split("/").length - 1];

  var newHtml = await fetch(window.location.href, {credentials: 'omit'})
    .then(response => response.text())
    .then(text => parser.parseFromString(text, "text/html"));

  const chapterUrls = [...newHtml.querySelectorAll("tr.chapter-row")].map(element => {
    return element.getAttribute("data-url");
  });

  const chapterCount = chapterUrls.length;

  const chapterCountLength = chapterCount.toString().length;

  const fillZeros = "0".repeat(chapterCountLength);

  // timeoutLoop for the progress bar to work
  let index = 0;
  async function timeoutLoop() {
    let chapterUrl = chapterUrls[index];

    newHtml = await fetch("https://www.royalroad.com" + chapterUrl, {credentials: 'omit'})
      .then(response => response.text())
      .then(text => parser.parseFromString(text, "text/html"));

    let chapter = newHtml.querySelector("div.fic-header > div > div.col-lg-6").outerHTML;

    [...newHtml.querySelector("div.chapter-content").parentNode.children].forEach(element => {
      if (element.classList.contains("chapter-content") || element.classList.contains("author-note-portlet")) {
        chapter += "\n" + element.outerHTML;
      }
    })

    let chapterName = chapterUrl.split("/")[chapterUrl.split("/").length - 1];

    let filledIndex = (fillZeros + (index + 1)).slice(chapterCountLength * -1);

    zip.file(fictionName + "/" + filledIndex + "_" + chapterName, chapter);

    document.querySelectorAll("div.RRScraperProgressBar").forEach(element => {
      element.style.width = "calc(" + ((chapterCount - index) / chapterCount) * 100 + "% - 30px)";
      element.style.display = "none";
      element.style.display = "block";
    });

    if (++index < chapterCount) {
      setTimeout(timeoutLoop, 0);
    } else {
      zip.generateAsync({type: "blob"}).then((blob) => {
        saveAs(blob, fictionName + ".zip");
      });
    }
  }
  setTimeout(timeoutLoop, 0);
}