YouTube Script Downloader Button

Adds a button that passes the URL to youtubetranscript.com for the transcript

您需要先安装一个扩展,例如 篡改猴Greasemonkey暴力猴,之后才能安装此脚本。

您需要先安装一个扩展,例如 篡改猴暴力猴,之后才能安装此脚本。

您需要先安装一个扩展,例如 篡改猴暴力猴,之后才能安装此脚本。

您需要先安装一个扩展,例如 篡改猴Userscripts ,之后才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey,才能安装此脚本。

您需要先安装用户脚本管理器扩展后才能安装此脚本。

(我已经安装了用户脚本管理器,让我安装!)

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

(我已经安装了用户样式管理器,让我安装!)

// ==UserScript==
// @name         YouTube Script Downloader Button
// @description  Adds a button that passes the URL to youtubetranscript.com for the transcript
// @author       dhaden
// @match        https://www.youtube.com/watch*
// @grant        none
// @license      MIT
// @run-at       document-end
// @version      1.0
// @namespace https://greasyfork.org/users/186630
// ==/UserScript==

const buttons = ["Script"];

// The YouTube styled button in CSS
// There is no consistent variable for border-radius (button roundness) yet.
// Old border-radius: 2px. New border-radius: 20px or higher.
const cssText = `
    .download-button {
        border-radius: 20px;
        display: flex;
        flex-direction: row;
        cursor: pointer;
        background-color: var(--yt-spec-10-percent-layer);
        color: var(--yt-spec-text-secondary);
        padding: var(--yt-button-padding);
        margin: auto var(--ytd-subscribe-button-margin, 12px);
        white-space: nowrap;
        font-size: var(--ytd-tab-system-font-size, 1.4rem);
        font-weight: var(--ytd-tab-system-font-weight, 500);
        letter-spacing: var(--ytd-tab-system-letter-spacing, .007px);
        text-transform: var(--ytd-tab-system-text-transform, uppercase);
    }
    .download-button-text {
        --yt-formatted-string-deemphasize_-_display: initial;
        --yt-formatted-string-deemphasize-color: var(--yt-spec-text-secondary);
        --yt-formatted-string-deemphasize_-_margin-left: 4px;
    }
    .download-button-container {
        display: flex;
        flex-direction: row;
    }
    .download-playlist-button {
        margin-right: 8px;
        margin-left: 0px;
    }
    .download-playlist-button-text {
        color: #E4E4E4;
    }
`;


(function() {
    'use strict';
    window.onload = () => {

        // playlist pages will try to add the buttons repeatedly
        let playlistButtonsAdded = false;

        window.addEventListener("yt-navigate-finish", () => {
            setTimeout(() => {

                // apply CSS
                const style = document.createElement("style");
                style.type = "text/css";
                style.innerHTML = cssText;
                document.head.appendChild(style);

                // check for playlist and create appropriate query
                let query = "#analytics-button:not(.download-panel)";
                let inPlaylist = location.href.includes("/playlist");
                if (inPlaylist && !playlistButtonsAdded) {
                    query += ", div.metadata-buttons-wrapper:not(.download-panel)";
                    playlistButtonsAdded = true;
                }

                document.querySelectorAll(query).forEach(panel => {

                    // make an outer div container (to flex buttons side-by-side)
                    const container = document.createElement("div");
                    container.classList.add("download-button-container");

                    for (let i = 0; i < buttons.length; i++) {
                        const button = document.createElement("div");             // the button
                        button.classList.add("download-button");
                        if (inPlaylist) { button.classList.add("download-playlist-button"); }

                        button.addEventListener("click", () => {                  // passthrough function
                            let link = (window.location.search);                  // get the search portion of the current URL
                            let linkbase = "https://www.youtubetranscript.com/";  // get the base domain part of the current URL
                            var string_url = linkbase + link;                     // combine them together without /watch
                            (function (change) {
                                window.location = string_url;                     // click the button and the Web link becomes the new combo URL
                            })();
                        });

                        const buttonText = document.createElement("span");        // button text
                        buttonText.classList.add("download-button-text");
                        if (inPlaylist) { buttonText.classList.add("download-playlist-button-text"); }
                        buttonText.innerHTML = buttons[i];
                        button.appendChild(buttonText);                           // append text to button
                        container.appendChild(button);
                    }

                    panel.classList.add("download-panel");
                    panel.insertBefore(container, panel.firstElementChild);
                });
            }, 200);
        });
    };
})();