View All Editorials

View all editorials of the AtCoder contest in one page.

Från och med 2022-10-15. Se den senaste versionen.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name            View All Editorials
// @name:ja         解説ぜんぶ見る
// @description     View all editorials of the AtCoder contest in one page.
// @description:ja  AtCoderコンテストの解説ページに、すべての問題の解説をまとめて表示します。
// @version         1.3.0
// @icon            https://www.google.com/s2/favicons?domain=atcoder.jp
// @match           https://atcoder.jp/contests/*/editorial
// @match           https://atcoder.jp/contests/*/editorial?*
// @grant           GM_addStyle
// @namespace       https://gitlab.com/w0mbat/user-scripts
// @author          w0mbat
// ==/UserScript==

(async function () {
  'use strict';
  console.log(`🐻 "View All Editorials" start execution. 🐻`)

  async function addScript(src) {
    return new Promise((resolve) => {
      const script = document.createElement("script");
      script.type = "text/javascript";
      script.src = src;
      script.onload = resolve;
      document.getElementsByTagName("head")[0].appendChild(script);
    });
  }

  async function addStyleSheet(src) {
    return new Promise((resolve) => {
      const link = document.createElement("link");
      link.rel = "stylesheet";
      link.href = src;
      link.onload = resolve;
      document.getElementsByTagName("head")[0].appendChild(link);
    });
  }

  async function loadKaTex() {
    await addStyleSheet("https://cdn.jsdelivr.net/npm/[email protected]/dist/katex.min.css");
    await addScript("https://cdn.jsdelivr.net/npm/[email protected]/dist/katex.min.js");
    await addScript("https://cdn.jsdelivr.net/npm/[email protected]/dist/contrib/auto-render.min.js");
    var kaTexOptions = {
      delimiters: [
        { left: "$$", right: "$$", display: true },
        { left: "$", right: "$", display: false },
        { left: "\\(", right: "\\)", display: false },
        { left: "\\[", right: "\\]", display: true }
      ],
      ignoredTags: ["script", "noscript", "style", "textarea", "code", "option"],
      ignoredClasses: ["prettyprint", "source-code-for-copy"],
      throwOnError: false
    };
    renderMathInElement(document.body, kaTexOptions);
  }

  async function loadMathJax() {
    await addScript("https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js?config=TeX-MML-AM_CHTML");
    MathJax.Hub.Config({ messageStyle: "none", tex2jax: { skipTags: ["script", "noscript", "style", "textarea", "code"], inlineMath: [['$', '$'], ['\\(', '\\)']] } });
  }

  async function loadPrettifier() {
    await addScript("https://cdn.rawgit.com/google/code-prettify/master/loader/run_prettify.js");
  }

  async function getEditorial(link) {
    return new Promise((resolve) => {
      const xhr = new XMLHttpRequest()
      xhr.responseType = "document";
      xhr.onload = (response) => {
        const dom = response.target.responseXML;
        const editorialDom = dom.querySelector("#main-container > div.row > div:nth-child(2) > div:nth-of-type(1)");
        editorialDom && link.parentNode.appendChild(editorialDom);
        resolve();
      }
      xhr.open("GET", link.href);
      xhr.send();
    });
  }

  async function getAllEditorials() {
    return Promise.all(Array.prototype.filter.call(document.getElementsByTagName('a'), e => e.href.match(/\/editorial\//))
      .map(e => getEditorial(e)));
  }

  GM_addStyle("pre code { tab-size: 4; }");
  await getAllEditorials();
  // await loadMathJax();
  await loadKaTex();
  await loadPrettifier();

  console.log(`🐻 "View All Editorials" end execution. 🐻`)
})();