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。

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

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

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

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.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==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);
    }
})();