AtCoder Solve Declaration

問題文の隣にツイートするボタンを表示します。

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         AtCoder Solve Declaration
// @version      0.1
// @license      MIT 
// @description  問題文の隣にツイートするボタンを表示します。
// @author       Kyo_s_s
// @match        https://atcoder.jp/contests/*/tasks/*
// @exclude      https://atcoder.jp/contests/*/tasks/*/editorial
// @namespace https://greasyfork.org/users/1129958
// ==/UserScript==

(function() {
    'use strict';

    function createButton() {
        const button = document.createElement("button");
        button.innerHTML = "ときます宣言";
        button.classList.add("btn", "btn-default", "btn-sm");
        button.addEventListener("click", function() {
            const text = "ときます " + window.location.href + "\n#競プロ精進";
            const tweetUrl = "https://twitter.com/intent/tweet?text=" + encodeURIComponent(text);
            window.open(tweetUrl);
        });

        return button;
    }

    function insertButton() {
        const title = document.querySelector(".h2");
        if (title) {
            title.appendChild(createButton());
        }
    }

    window.addEventListener("load", insertButton);
})();