GitHub Gist Copier

Add copy button to Gist files for easy code copying.

当前为 2025-05-09 提交的版本,查看 最新版本

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。

You will need to install an extension such as Tampermonkey to install this script.

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         GitHub Gist Copier
// @description  Add copy button to Gist files for easy code copying.
// @icon         https://github.githubassets.com/favicons/favicon-dark.svg
// @version      1.2
// @author       afkarxyz
// @namespace    https://github.com/afkarxyz/userscripts/
// @supportURL   https://github.com/afkarxyz/userscripts/issues
// @license      MIT
// @run-at       document-end
// @match        https://gist.github.com/*
// @grant        GM_xmlhttpRequest
// @grant        GM_setClipboard
// @grant        GM_addStyle
// @connect      api.codetabs.com
// @connect      gist.githubusercontent.com
// ==/UserScript==

(function() {
    'use strict';

    GM_addStyle(`
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .gist-copy-spinner {
            animation: spin 0.75s linear infinite;
            transform-origin: center;
        }
    `);

    function noop() { }

    function debounce(f, delay) {
        let timeoutId = null;
        return function (...args) {
            if (timeoutId) {
                clearTimeout(timeoutId);
            }
            timeoutId = setTimeout(() => {
                f.apply(this, args);
            }, delay);
        };
    }

    function createCopyButton(fileElement) {
        const fileActionElement = fileElement.querySelector('.file-actions');
        if (!fileActionElement) {
            return noop;
        }

        const rawButton = fileActionElement.querySelector('a[href*="/raw/"]');
        if (!rawButton) {
            return noop;
        }
        
        const button = document.createElement('button');
        button.className = 'btn-octicon gist-copy-button';
        button.style.marginRight = '5px';

        button.innerHTML = `
        <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-copy">
            <path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0 1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0 1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784 16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5 9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path>
        </svg>

        <svg style="display: none;" xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" class="gist-spinner">
            <path fill="currentColor" d="M12,1A11,11,0,1,0,23,12,11,11,0,0,0,12,1Zm0,19a8,8,0,1,1,8-8A8,8,0,0,1,12,20Z" opacity="0.25"/>
            <path fill="currentColor" d="M10.14,1.16a11,11,0,0,0-9,8.92A1.59,1.59,0,0,0,2.46,12,1.52,1.52,0,0,0,4.11,10.7a8,8,0,0,1,6.66-6.61A1.42,1.42,0,0,0,12,2.69h0A1.57,1.57,0,0,0,10.14,1.16Z" class="gist-copy-spinner"/>
        </svg>

        <svg style="display: none;" aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-check color-fg-success">
            <path d="M13.78 4.22a.75.75 0 0 1 0 1.06l-7.25 7.25a.75.75 0 0 1-1.06 0L2.22 9.28a.751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018L6 10.94l6.72-6.72a.75.75 0 0 1 1.06 0Z"></path>
        </svg>
        `;

        const copyIcon = button.querySelector('.octicon-copy');
        const spinnerIcon = button.querySelector('.gist-spinner');
        const checkIcon = button.querySelector('.octicon-check');

        let timeoutId = null;
        const copyHandler = (e) => {
            if (timeoutId) {
                return;
            }
            e.preventDefault();

            copyIcon.style.display = 'none';
            spinnerIcon.style.display = 'inline-block';

            const rawUrl = rawButton.href;
            const proxiedUrl = `https://api.codetabs.com/v1/proxy/?quest=${encodeURIComponent(rawUrl)}`;
            
            GM_xmlhttpRequest({
                method: 'GET',
                url: proxiedUrl,
                headers: {
                    "Accept": "text/plain, application/json, */*"
                },
                followRedirect: true,
                onload: function(response) {
                    if (response.status === 200) {
                        if (response.responseText.includes("<a href=") && response.responseText.includes("Moved Permanently")) {
                            console.error("Received redirect instead of content:", response.responseText);
                            const match = response.responseText.match(/href="([^"]+)"/);
                            if (match && match[1]) {
                                const redirectUrl = match[1].startsWith("/") 
                                    ? `https://api.codetabs.com${match[1]}`
                                    : match[1];
                                
                                GM_xmlhttpRequest({
                                    method: 'GET',
                                    url: redirectUrl,
                                    headers: {
                                        "Accept": "text/plain, application/json, */*"
                                    },
                                    onload: function(redirectResponse) {
                                        if (redirectResponse.status === 200) {
                                            GM_setClipboard(redirectResponse.responseText, { type: 'text', mimetype: 'text/plain' });
                                            
                                            spinnerIcon.style.display = 'none';
                                            checkIcon.style.display = 'inline-block';
                                            
                                            timeoutId = setTimeout(() => {
                                                checkIcon.style.display = 'none';
                                                copyIcon.style.display = 'inline-block';
                                                timeoutId = null;
                                            }, 500);
                                        } else {
                                            console.error("Failed to follow redirect:", redirectResponse.status);
                                            
                                            spinnerIcon.style.display = 'none';
                                            copyIcon.style.display = 'inline-block';
                                            timeoutId = null;
                                        }
                                    },
                                    onerror: function(error) {
                                        console.error("Error following redirect:", error);
                                        
                                        spinnerIcon.style.display = 'none';
                                        copyIcon.style.display = 'inline-block';
                                        timeoutId = null;
                                    }
                                });
                            } else {
                                spinnerIcon.style.display = 'none';
                                copyIcon.style.display = 'inline-block';
                                timeoutId = null;
                            }
                        } else {
                            GM_setClipboard(response.responseText, { type: 'text', mimetype: 'text/plain' });
                            
                            spinnerIcon.style.display = 'none';
                            checkIcon.style.display = 'inline-block';
                            
                            timeoutId = setTimeout(() => {
                                checkIcon.style.display = 'none';
                                copyIcon.style.display = 'inline-block';
                                timeoutId = null;
                            }, 500);
                        }
                    } else {
                        console.error("Error response status:", response.status);
                        
                        spinnerIcon.style.display = 'none';
                        copyIcon.style.display = 'inline-block';
                        timeoutId = null;
                    }
                },
                onerror: function(error) {
                    console.error('Error fetching gist content:', error);
                    
                    spinnerIcon.style.display = 'none';
                    copyIcon.style.display = 'inline-block';
                    timeoutId = null;
                }
            });
        };

        button.addEventListener('click', copyHandler);
        fileActionElement.insertBefore(button, fileActionElement.firstChild);

        return () => {
            button.removeEventListener('click', copyHandler);
            if (timeoutId) {
                clearTimeout(timeoutId);
            }
            button.remove();
        };
    }

    function runGistCopy() {
        let removeAllListeners = noop;
        
        function tryCreateCopyButtons() {
            removeAllListeners();
            const fileElements = [...document.querySelectorAll('.file')];
            const removeListeners = fileElements.map(createCopyButton);
            removeAllListeners = () => {
                removeListeners.map((f) => f());
                [...document.querySelectorAll('.gist-copy-button')].forEach((el) => {
                    el.remove();
                });
            };
        }

        setTimeout(tryCreateCopyButtons, 300);

        const observer = new MutationObserver(debounce(() => {
            if (document.querySelectorAll('.file').length > 0 &&
                document.querySelectorAll('.gist-copy-button').length === 0) {
                tryCreateCopyButtons();
            }
        }, 100));

        observer.observe(document.body, {
            childList: true,
            subtree: true
        });
        
        if (window.onurlchange === null) {
            window.addEventListener('urlchange', debounce(tryCreateCopyButtons, 16));
        }
    }

    runGistCopy();
})();