AtCoder の順位表に最多提出言語を追加します．uesugi6111 さん作のスクリプトが元ネタです．
// ==UserScript==
// @name atcoder-standings-lang
// @namespace iilj
// @version 2020.11.10.0
// @description AtCoder の順位表に最多提出言語を追加します．uesugi6111 さん作のスクリプトが元ネタです．
// @author iilj
// @supportURL https://github.com/iilj/atcoder-standings-lang/issues
// @match https://atcoder.jp/contests/*/standings*
// ==/UserScript==
/* globals $ */
/**
* ユーザID/言語ごとの提出数
* @typedef {Object} UserLangEntry
* @property {string} user_id ユーザ ID
* @property {string} language 言語名
* @property {number} count 提出数
*/
(() => {
'use strict';
/** @type {Map<string, UserLangEntry[]>} */
const userLangEntryMap = new Map();
const fetchLangJson = async () => {
console.log('@kenkooooさんありがとう');
// 2e5 個くらい要素があるのでキャッシュする
const res = await fetch("https://kenkoooo.com/atcoder/resources/lang.json", { cache: 'force-cache' });
/** @type {UserLangEntry[]} */
const userLangEntries = await res.json();
// prepare map
userLangEntries.forEach(userLangEntry => {
if (userLangEntryMap.has(userLangEntry.user_id)) {
userLangEntryMap.get(userLangEntry.user_id).push(userLangEntry);
} else {
userLangEntryMap.set(userLangEntry.user_id, [userLangEntry]);
}
});
// sort arrays
userLangEntryMap.forEach(userLangArray => {
userLangArray.sort((a, b) => b.count - a.count); // in place
});
};
/** @type {(anchor: HTMLAnchorElement) => void} */
const updateAnchor = (anchor) => {
if (!anchor.href.includes('/users/')) return;
const user_id = anchor.text.trim();
if (!userLangEntryMap.has(user_id)) return;
const userLangArray = userLangEntryMap.get(user_id);
const tooltipHtml = userLangArray.map((userLangEntry) =>
`${userLangEntry.language} : ${userLangEntry.count}`
).join('<br>');
let langHtml = userLangArray[0].language;
if (userLangArray.length >= 2) {
langHtml += '<div style="font-size:10px;display:inline;">'
+ `/${userLangArray[1].language}`
+ (userLangArray.length >= 3 ? `/${userLangArray[2].language}` : '')
+ ' </div>';
}
anchor.insertAdjacentHTML('beforeend',
'/'
+ '<div data-toggle="tooltip" data-html="true" data-placement="right" style="font-size:12px;display:inline;" title="' + tooltipHtml + '">'
+ langHtml
+ '</div>');
$('[data-toggle="tooltip"]').tooltip();
};
/** @type {(tbody: HTMLTableSectionElement) => void} */
const updateTable = (tbody) => {
tbody.querySelectorAll('.username').forEach(anchor => {
updateAnchor(anchor);
});
};
/** @type {HTMLTableSectionElement} */
let tbody = null;
const tableObserver = new MutationObserver(() => {
updateTable(tbody);
});
const parentObserver = new MutationObserver(async () => {
tbody = document.getElementById('standings-tbody');
if (tbody) {
parentObserver.disconnect();
await fetchLangJson();
updateTable(tbody);
tableObserver.observe(
tbody,
{ childList: true }
)
}
});
parentObserver.observe(
document.getElementById('vue-standings'),
{ childList: true, subtree: true }
);
})();