X.com Media Gallery Slideshow with Timer and Video Support + Pause

Extract images and videos from X.com (Twitter) media gallery and play slideshow with controls, countdown timer and pause on spacebar

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         X.com Media Gallery Slideshow with Timer and Video Support + Pause
// @namespace    http://tampermonkey.net/
// @version      1.7
// @description  Extract images and videos from X.com (Twitter) media gallery and play slideshow with controls, countdown timer and pause on spacebar
// @author       OpenAI
// @match        https://twitter.com/*
// @match        https://x.com/*
// @grant        none
// @license MIT
// ==/UserScript==

(function () {
    'use strict';

    let slideshowOverlay = null;
    let slideshowMedia = []; // Array of objects {type: 'image'|'video', src: URL}
    let currentIndex = 0;
    let slideshowTimeout = null;
    let countdownInterval = null;
    let countdownSeconds = 10;
    let isPaused = false;
    let currentVideo = null;

    // Extract media URLs (images and videos) from X.com media gallery
    function extractMedia() {
        const seen = new Set();
        const media = [];

        // Images
        const imgElements = document.querySelectorAll('img[src*="pbs.twimg.com/media/"]');
        imgElements.forEach(img => {
            const baseUrl = img.src.split('?')[0];
            if (!seen.has(baseUrl)) {
                seen.add(baseUrl);
                // Images full size
                media.push({ type: 'image', src: baseUrl + '?format=jpg&name=large' });
            }
        });

        // Videos
        const videoElements = document.querySelectorAll('video');
        videoElements.forEach(video => {
            let src = video.currentSrc || video.src;
            if (src && !seen.has(src)) {
                seen.add(src);
                media.push({ type: 'video', src: src });
            }
        });

        return media;
    }

    function clearTimers() {
        clearTimeout(slideshowTimeout);
        clearInterval(countdownInterval);
    }

    // Create and show slideshow overlay
    function showSlideshow(mediaArray) {
        if (mediaArray.length === 0) {
            alert('No media found!');
            return;
        }

        if (slideshowOverlay) {
            slideshowOverlay.remove();
            clearTimers();
            document.removeEventListener('keydown', keyHandler);
        }

        slideshowMedia = mediaArray;
        currentIndex = 0;
        countdownSeconds = 10;
        isPaused = false;
        currentVideo = null;

        slideshowOverlay = document.createElement('div');
        slideshowOverlay.style.position = 'fixed';
        slideshowOverlay.style.top = '0';
        slideshowOverlay.style.left = '0';
        slideshowOverlay.style.width = '100vw';
        slideshowOverlay.style.height = '100vh';
        slideshowOverlay.style.backgroundColor = 'rgba(0,0,0,0.9)';
        slideshowOverlay.style.display = 'flex';
        slideshowOverlay.style.alignItems = 'center';
        slideshowOverlay.style.justifyContent = 'center';
        slideshowOverlay.style.flexDirection = 'column';
        slideshowOverlay.style.zIndex = '100000';

        const mediaContainer = document.createElement('div');
        mediaContainer.style.maxWidth = '90%';
        mediaContainer.style.maxHeight = '90%';
        mediaContainer.style.borderRadius = '10px';
        mediaContainer.style.boxShadow = '0 0 20px rgba(255, 255, 255, 0.7)';
        mediaContainer.style.display = 'flex';
        mediaContainer.style.alignItems = 'center';
        mediaContainer.style.justifyContent = 'center';
        slideshowOverlay.appendChild(mediaContainer);

        const timerDisplay = document.createElement('div');
        timerDisplay.style.color = 'white';
        timerDisplay.style.fontSize = '18px';
        timerDisplay.style.marginTop = '10px';
        timerDisplay.style.fontFamily = 'Arial, sans-serif';
        timerDisplay.textContent = `Next media in: ${countdownSeconds} seconds`;
        slideshowOverlay.appendChild(timerDisplay);

        const closeBtn = document.createElement('button');
        closeBtn.innerText = '✕';
        closeBtn.style.position = 'fixed';
        closeBtn.style.top = '20px';
        closeBtn.style.right = '20px';
        closeBtn.style.fontSize = '30px';
        closeBtn.style.background = 'transparent';
        closeBtn.style.color = 'white';
        closeBtn.style.border = 'none';
        closeBtn.style.cursor = 'pointer';
        closeBtn.style.zIndex = '100001';
        closeBtn.title = 'Close Slideshow';
        closeBtn.addEventListener('click', () => {
            clearTimers();
            slideshowOverlay.remove();
            slideshowOverlay = null;
            document.removeEventListener('keydown', keyHandler);
        });
        slideshowOverlay.appendChild(closeBtn);

        function loadMedia(index) {
            mediaContainer.innerHTML = '';
            currentVideo = null;
            const mediaObj = slideshowMedia[index];
            if (!mediaObj) return;

            if (mediaObj.type === 'image') {
                const img = document.createElement('img');
                img.src = mediaObj.src;
                img.style.maxWidth = '100%';
                img.style.maxHeight = '100%';
                img.style.borderRadius = '10px';
                mediaContainer.appendChild(img);

                countdownSeconds = 10;
                timerDisplay.textContent = `Next media in: ${countdownSeconds} seconds`;

                resetInterval(10000);
            } else if (mediaObj.type === 'video') {
                const video = document.createElement('video');
                video.src = mediaObj.src;
                video.style.maxWidth = '100%';
                video.style.maxHeight = '100%';
                video.style.borderRadius = '10px';
                video.autoplay = true;
                video.controls = true;
                video.loop = false;
                mediaContainer.appendChild(video);

                currentVideo = video;

                video.addEventListener('loadedmetadata', () => {
                    countdownSeconds = Math.ceil(video.duration);
                    timerDisplay.textContent = `Next media in: ${countdownSeconds} seconds`;
                    resetInterval(countdownSeconds * 1000);
                    if (isPaused) video.pause();
                });

                video.addEventListener('ended', () => {
                    nextMedia();
                });
            }
        }

        function showMedia(index) {
            currentIndex = (index + slideshowMedia.length) % slideshowMedia.length;
            loadMedia(currentIndex);
        }

        function nextMedia() {
            showMedia(currentIndex + 1);
        }

        function prevMedia() {
            showMedia(currentIndex - 1);
        }

        function resetInterval(duration) {
            clearTimers();

            countdownSeconds = Math.floor(duration / 1000);
            timerDisplay.textContent = `Next media in: ${countdownSeconds} seconds`;

            if (!isPaused) {
                slideshowTimeout = setTimeout(() => {
                    nextMedia();
                }, duration);

                countdownInterval = setInterval(() => {
                    if (!isPaused) {
                        countdownSeconds--;
                        if (countdownSeconds < 0) countdownSeconds = 0;
                        timerDisplay.textContent = `Next media in: ${countdownSeconds} seconds`;
                    }
                }, 1000);
            }
        }

        function togglePause() {
            isPaused = !isPaused;
            if (isPaused) {
                clearTimers();
                if (currentVideo && !currentVideo.paused) currentVideo.pause();
            } else {
                if (currentVideo && currentVideo.paused) currentVideo.play();
                resetInterval(countdownSeconds * 1000);
            }
        }

        function keyHandler(e) {
            if (!slideshowOverlay) return;

            if (e.key === 'ArrowRight') {
                nextMedia();
            } else if (e.key === 'ArrowLeft') {
                prevMedia();
            } else if (e.key === 'Escape') {
                closeBtn.click();
            } else if (e.code === 'Space') {
                e.preventDefault(); // prevent page scroll
                togglePause();
            }
        }

        document.addEventListener('keydown', keyHandler);

        showMedia(0);

        document.body.appendChild(slideshowOverlay);
    }

    function addButton() {
        if (document.getElementById('extract-media-btn')) return;

        const btn = document.createElement('button');
        btn.innerText = 'Start X.com Slideshow';
        btn.id = 'extract-media-btn';
        btn.style.position = 'fixed';
        btn.style.top = '10px';
        btn.style.right = '10px';
        btn.style.zIndex = '9999';
        btn.style.padding = '10px';
        btn.style.background = '#1da1f2';
        btn.style.color = 'white';
        btn.style.border = 'none';
        btn.style.borderRadius = '5px';
        btn.style.cursor = 'pointer';
        btn.title = 'Start slideshow';

        btn.addEventListener('click', () => {
            const media = extractMedia();
            showSlideshow(media);
        });

        document.body.appendChild(btn);
    }

    const observer = new MutationObserver(() => {
        addButton();
    });
    observer.observe(document.body, { childList: true, subtree: true });

    addButton();
})();