AtCoder Dropdown Tasks

AtCoder のコンテストページにおいて、問題タブをホバーするとドロップダウンリストを表示するようにします。

Du musst eine Erweiterung wie Tampermonkey, Greasemonkey oder Violentmonkey installieren, um dieses Skript zu installieren.

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.

Sie müssten eine Skript Manager Erweiterung installieren damit sie dieses Skript installieren können

(Ich habe schon ein Skript Manager, Lass mich es installieren!)

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         AtCoder Dropdown Tasks
// @namespace    https://atcoder.jp/
// @version      2025-03-10
// @description  AtCoder のコンテストページにおいて、問題タブをホバーするとドロップダウンリストを表示するようにします。
// @author       magurofly
// @match        https://atcoder.jp/contests/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=atcoder.jp
// @grant        unsafeWindow
// @license      CC0-1.0 Universal
// ==/UserScript==

(async function() {
    'use strict';

    if (typeof unsafeWindow.contestScreenName !== "string") return;
    const contestScreenName = unsafeWindow.contestScreenName;

    const styleSheet = new CSSStyleSheet();
    styleSheet.insertRule(`
.atcoder-dropdown-tasks:hover .dropdown-menu {
  display: block;
}
    `);
    document.adoptedStyleSheets.push(styleSheet);

    const tasksDropdown = unsafeWindow.document.querySelector("#contest-nav-tabs > ul > li:nth-child(2)");
    tasksDropdown.classList.add("atcoder-dropdown-tasks");

    const tasksDropdownButton = tasksDropdown.querySelector("a");
    tasksDropdownButton.insertAdjacentHTML("beforeend", `<span class="caret"></span>`);

    const tasksDropdownContents = document.createElement("ul");
    tasksDropdownContents.className = "dropdown-menu";
    tasksDropdown.appendChild(tasksDropdownContents);

    const tasksHTML = await (await fetch(`/contests/${contestScreenName}/tasks`)).text();
    const tasksDoc = new DOMParser().parseFromString(tasksHTML, "text/html");
    for (const row of tasksDoc.querySelectorAll("#main-container > div.row > div:nth-child(2) > div.panel.panel-default.table-responsive > table > tbody > tr")) {
        const taskNum = row.cells[0].textContent;
        const taskName = row.cells[1].textContent;
        const taskURL = row.cells[0].children[0].href;
        const link = document.createElement("a");
        link.href = taskURL;
        link.textContent = `${taskNum} - ${taskName}`;
        link.style.fontFamily = "monospace";
        const li = document.createElement("li");
        li.appendChild(link);
        tasksDropdownContents.appendChild(li);
    }
})();