YouTube Shorts URL Conversion Button

YouTube URL Converter

Convert YouTube Shorts URL to regular YouTube video URL.
Versão de: 18/10/2023. Veja: a última versão.
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// ==UserScript==
// @name                YouTube URL Converter
// @name:zh-TW          YouTube URL 轉換器
// @name:ja             YouTube URL コンバーター
// @name:zh-CN          YouTube URL 转换器
// @namespace           http://tampermonkey.net/
// @version             1.0
// @description         Convert YouTube Shorts URL to regular YouTube video URL.
// @description:zh-TW   將 YouTube Shorts 網址轉換為常規的 YouTube 影片網址。
// @description:ja      YouTube Shorts URLを通常のYouTubeビデオURLに変換します。
// @description:zh-CN   将 YouTube Shorts 网址转换为常规的 YouTube 视频网址。
// @author              鮪魚大師
// @match               https://www.youtube.com/*
// @grant               none
// @license             MIT
// ==/UserScript==

(function() {
    'use strict';

    let convertButton;

    function createConvertButton() {
        if (!convertButton) {
            convertButton = document.createElement('button');
            convertButton.textContent = 'Shorts網址轉換';
            convertButton.style.position = 'fixed';
            convertButton.style.top = '150px';
            convertButton.style.right = '10px';
            convertButton.style.zIndex = '9999';
            convertButton.style.backgroundColor = '#FF0000';
            convertButton.style.color = '#FFFFFF';
            convertButton.style.fontSize = '24px';
            convertButton.style.padding = '10px 20px';
            convertButton.style.border = 'none';
            convertButton.style.borderRadius = '5px';
            convertButton.title = '將Shorts網址轉換成一般影片網址';
            document.body.appendChild(convertButton);

            convertButton.addEventListener('click', convertURL);
        }
    }

    function convertURL() {
        const currentURL = window.location.href;
        if (currentURL.includes("youtube.com/shorts/")) {
            const match = currentURL.match(/https:\/\/www\.youtube\.com\/shorts\/([A-Za-z0-9_-]+)/);
            if (match) {
                const videoID = match[1];
                const videoURL = `https://www.youtube.com/watch?v=${videoID}`;
                window.location.href = videoURL;
            }
        }
    }

    function removeConvertButton() {
        if (convertButton) {
            convertButton.remove();
            convertButton = null;
        }
    }

    function checkAndCreateButton() {
        if (window.location.href.includes("youtube.com/shorts/")) {
            createConvertButton();
        } else {
            removeConvertButton();
        }
    }

    checkAndCreateButton();

    window.addEventListener('popstate', checkAndCreateButton);

    const observer = new MutationObserver(function(mutationsList, observer) {
        for (const mutation of mutationsList) {
            if (mutation.type === 'childList') {
                checkAndCreateButton();
            }
        }
    });

    observer.observe(document.documentElement, { childList: true, subtree: true });
})();