AtCoder Submission Notes

Add notes to AtCoder submissions

Tính đến 03-03-2025. Xem phiên bản mới nhất.

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 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.

(Tôi đã có Trình quản lý tập lệnh người dùng, hãy cài đặt nó!)

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 Submission Notes
// @namespace    https://greatest.deepsurf.us/users/your-username
// @version      1.4
// @description  Add notes to AtCoder submissions
// @author       zerozero-0-0
// @match        https://atcoder.jp/contests/*/submissions/me
// @grant        none
// @license MIT
// ==/UserScript==

(function () {
  "use strict";

  function getNoteKey(submissionId) {
    return `atcoder_note_${submissionId}`;
  }

  const table = document.querySelector("table");
  if (!table) return;

  // ヘッダーに「Note」列を追加(重複防止)
  const headerRow = table.querySelector("thead tr");
  if (headerRow && !headerRow.querySelector(".note-header")) {
    const noteHeader = document.createElement("th");
    noteHeader.textContent = "Note";
    noteHeader.className = "note-header";
    headerRow.appendChild(noteHeader);
  }

  // 各行に独立したメモ欄追加
  document.querySelectorAll("tbody tr").forEach((row) => {
    const link = row.querySelector('a[href*="/submissions/"]');
    if (!link) return;

    const submissionId = link.href.split("/").pop();
    const noteKey = getNoteKey(submissionId);

    const td = document.createElement("td");
    td.style.minWidth = "200px";

    const textarea = document.createElement("textarea");
    textarea.style.width = "100%";
    textarea.style.height = "50px";
    textarea.dataset.submissionId = submissionId; // 念のため識別用
    textarea.value = localStorage.getItem(noteKey) || "";

    textarea.addEventListener("input", (event) => {
      const target = event.target;
      localStorage.setItem(noteKey, target.value);
    });

    td.appendChild(textarea);
    row.appendChild(td);
  });
})();