Quick Copy YouTube Subtitles

Quickly copy subtitles from YouTube and write them to the clipboard for easy analysis on GPT.
换行
// ==UserScript==
// @name               Quick Copy YouTube Subtitles
// @name:zh-TW         YouTube 字幕快速複製
// @namespace          wellstsai.com
// @version            v20241128.2
// @license            BSD
// @description        Quickly copy subtitles from YouTube and write them to the clipboard for easy analysis on GPT.
// @description:zh-TW  快速複製 YouTube 字幕並將其寫入剪貼簿，以便在GPT上進行分析。
// @author             WellsTsai
// @match              https://*.youtube.com/*
// @icon               data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant              none
// ==/UserScript==
 
(function() {
    'use strict';
 
    const GPT_PROMPT = '使用"正體中文" 與 "臺灣詞彙"，幫我消化時間軸後，我不需要知道詳細的時間，其中，如果影片有比較，請幫我列為表格，如果有方法，請幫我以條列式列出方法，請將影片的字幕檔轉換為詳細描述影片的重點與內容:';
    const COPY_NOTIFICATION_TEXT = '已複製';
 
    const copyToClipboard = text => {
        navigator.clipboard.writeText(text + "\n" + GPT_PROMPT).then(showCopyNotification);
    };
 
    const showCopyNotification = () => {
        const notification = document.createElement('div');
        notification.innerText = COPY_NOTIFICATION_TEXT;
        Object.assign(notification.style, {
            'font-size': '2em',
            position: 'fixed',
            bottom: '20px', right: '20px', padding: '10px',
            backgroundColor: 'rgba(0, 0, 0, 0.7)',
            color: 'white',
            borderRadius: '5px',
            zIndex: '1000'
        });
        document.body.appendChild(notification);
        setTimeout(() => document.body.removeChild(notification), 1500);
    };
 
    document.addEventListener('keydown', e => {
        if (!(e.ctrlKey && e.key === 'c') || window.getSelection().toString()) return; // Detect if Ctrl + C is pressed and no text is selected.
        e.preventDefault();
 
        const segmentsContainer = document.querySelector('#segments-container');
        const transcriptButton = document.querySelector('ytd-video-description-transcript-section-renderer button');
 
        if (segmentsContainer) {
            copyToClipboard(segmentsContainer.innerText);
        } else if (transcriptButton) {
            transcriptButton.click();
            setTimeout(() => {
                const newSegmentsContainer = document.querySelector('#segments-container');
                if (newSegmentsContainer) copyToClipboard(newSegmentsContainer.innerText);
            }, 1000);
        }
    });
})();
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