YouTube Mini Player

Youtube Mini Player. When you scroll down the mini player will appear.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

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

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

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

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         YouTube Mini Player
// @name:zh-CN   Youtube 小屏播放
// @namespace    http://tampermonkey.net/
// @version      2.4.4
// @license      MIT
// @description  Youtube Mini Player. When you scroll down the mini player will appear.
// @description:zh-CN   Youtube 小屏播放。当你向下滚动时,小屏播放器将会出现。
// @author       https://github.com/AkiyaKiko
// @homepage     https://github.com/AkiyaKiko/YouTubeMiniPlayer
// @match        https://www.youtube.com/*
// @match        https://m.youtube.com/*
// @icon         data:image/png;base64,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
// @run-at       document-end
// @grant        GM_addStyle
// @grant        GM_log
// ==/UserScript==

(function() {
    'use strict';

    if (window.top !== window.self) {
        return;
    }

    GM_log('🛠️ 脚本 "YouTube Mini Player (No Placeholder)" 开始执行');

    const miniPlayerClass = 'youtube-mini-player-active';
    let playerElement = null;
    let outerContainer = null;
    let innerContainer = null;
    let videoElement = null;
    let ivVideoContent = null;
    let bottomChrome = null;

    let originalOuterContainerStyle = null;
    let originalInnerContainerStyle = null;
    let originalVideoStyle = null;
    let originalIvContentStyle = null;

    let intersectionObserver = null;
    let observer = null;

    let isMiniPlayerActive = false;
    let lastUrl = location.href;
    let initializedUrl = null;

    let isDragging = false;
    let dragOffsetX = 0;
    let dragOffsetY = 0;
    let storedPlayerHeight = 0;

    function isFullscreen() {
        return !!document.fullscreenElement;
    }

    function minimizeOuterContainer() {
        if (!outerContainer || isMiniPlayerActive || isFullscreen()) {
            GM_log('🔽 不满足小窗条件,跳过。');
            return;
        }

        originalOuterContainerStyle = outerContainer.getAttribute('style');
        originalInnerContainerStyle = innerContainer?.getAttribute('style');
        originalVideoStyle = videoElement?.getAttribute('style');
        originalIvContentStyle = ivVideoContent?.getAttribute('style');

        storedPlayerHeight = playerElement.offsetHeight;
        GM_log(`📏 设置 #player 高度: ${storedPlayerHeight}px`);
        playerElement.style.height = `${storedPlayerHeight}px`;

        const floatingWidth = window.innerWidth / 5;
        const aspectRatio = outerContainer.offsetWidth / outerContainer.offsetHeight;
        const floatingHeight = floatingWidth / aspectRatio;
        const rightOffset = window.innerWidth * 0.03;
        const bottomOffset = window.innerHeight * 0.02;

        outerContainer.style.position = 'fixed';
        outerContainer.style.bottom = `${bottomOffset}px`;
        outerContainer.style.right = `${rightOffset}px`;
        outerContainer.style.left = 'auto';
        outerContainer.style.top = 'auto';
        outerContainer.style.width = `${floatingWidth}px`;
        outerContainer.style.height = `${floatingHeight}px`;
        outerContainer.style.zIndex = '3000';
        outerContainer.style.boxShadow = '2px 2px 5px rgba(0, 0, 0, 0.3)';
        outerContainer.style.minWidth = '0px';
        outerContainer.classList.add(miniPlayerClass);
        isMiniPlayerActive = true;

        if (innerContainer) {
            innerContainer.style.width = `${floatingWidth}px`;
            innerContainer.style.height = `${floatingHeight}px`;
            innerContainer.style.paddingTop = '0px';
        }
        if (bottomChrome) bottomChrome.style.display = 'none';
        if (videoElement) {
            videoElement.style.width = `${floatingWidth}px`;
            videoElement.style.height = `${floatingHeight}px`;
        }
        if (ivVideoContent) {
            ivVideoContent.style.width = `${floatingWidth}px`;
            ivVideoContent.style.height = `${floatingHeight}px`;
        }

        enableDragging();
    }

    function restoreOuterContainer() {
        if (!outerContainer || !isMiniPlayerActive || isFullscreen()) {
            GM_log('🔼 不满足恢复条件,跳过。');
            return;
        }

        outerContainer.setAttribute('style', originalOuterContainerStyle || '');
        outerContainer.classList.remove(miniPlayerClass);
        isMiniPlayerActive = false;

        if (playerElement) {
            playerElement.style.height = '';
            GM_log('🔁 恢复 #player 高度样式为空');
        }

        if (innerContainer) innerContainer.removeAttribute('style');
        if (bottomChrome) bottomChrome.style.display = '';
        if (videoElement) videoElement.setAttribute('style', originalVideoStyle || '');
        if (ivVideoContent) ivVideoContent.setAttribute('style', originalIvContentStyle || '');

        disableDragging();
    }

    function enableDragging() {
        if (!outerContainer) return;
        outerContainer.addEventListener('mousedown', onMouseDown);
    }

    function disableDragging() {
        if (!outerContainer) return;
        outerContainer.removeEventListener('mousedown', onMouseDown);
    }

    function onMouseDown(e) {
        if (!isMiniPlayerActive) return;
        isDragging = true;
        dragOffsetX = e.clientX - outerContainer.getBoundingClientRect().left;
        dragOffsetY = e.clientY - outerContainer.getBoundingClientRect().top;
        document.addEventListener('mousemove', onMouseMove);
        document.addEventListener('mouseup', onMouseUp);
        e.preventDefault();
    }

    function onMouseMove(e) {
        if (!isDragging) return;
        outerContainer.style.left = `${e.clientX - dragOffsetX}px`;
        outerContainer.style.top = `${e.clientY - dragOffsetY}px`;
        outerContainer.style.right = 'auto';
        outerContainer.style.bottom = 'auto';
    }

    function onMouseUp() {
        isDragging = false;
        document.removeEventListener('mousemove', onMouseMove);
        document.removeEventListener('mouseup', onMouseUp);
    }

    function observePlayerVisibility() {
        if (!playerElement) return;
        if (intersectionObserver) intersectionObserver.disconnect();

        intersectionObserver = new IntersectionObserver(entries => {
            entries.forEach(entry => {
                const playerRect = entry.boundingClientRect;
                if (playerRect.bottom < 0) {
                    if (!isFullscreen()) minimizeOuterContainer();
                } else {
                    restoreOuterContainer();
                }
            });
        }, { threshold: 0 });

        intersectionObserver.observe(playerElement);
    }

    function waitForElements() {
        if (!observer) {
            observer = new MutationObserver((mutations, obs) => {
                if (document.getElementById('player') &&
                    document.getElementById('player-container-outer') &&
                    document.getElementById('player-container-inner') &&
                    document.querySelector('video.video-stream.html5-main-video') &&
                    document.getElementById('contents')) {
                    obs.disconnect();
                    observer = null;
                    initialize();
                }
            });
            observer.observe(document.body, { childList: true, subtree: true });
        }
    }

    function handleResize() {
        if (outerContainer && outerContainer.classList.contains(miniPlayerClass)) {
            const floatingWidth = window.innerWidth / 5;
            const aspectRatio = outerContainer.offsetWidth / outerContainer.offsetHeight;
            const floatingHeight = floatingWidth / aspectRatio;
            const rightOffset = window.innerWidth * 0.03;
            const bottomOffset = window.innerHeight * 0.02;

            outerContainer.style.width = `${floatingWidth}px`;
            outerContainer.style.height = `${floatingHeight}px`;
            outerContainer.style.right = `${rightOffset}px`;
            outerContainer.style.bottom = `${bottomOffset}px`;
            outerContainer.style.left = 'auto';
            outerContainer.style.top = 'auto';

            if (innerContainer) {
                innerContainer.style.width = `${floatingWidth}px`;
                innerContainer.style.height = `${floatingHeight}px`;
            }
            if (videoElement) {
                videoElement.style.width = `${floatingWidth}px`;
                videoElement.style.height = `${floatingHeight}px`;
            }
            if (ivVideoContent) {
                ivVideoContent.style.width = `${floatingWidth}px`;
                ivVideoContent.style.height = `${floatingHeight}px`;
            }
        }
    }

    function cleanup() {
        if (intersectionObserver) {
            intersectionObserver.disconnect();
            intersectionObserver = null;
        }
        if (observer) {
            observer.disconnect();
            observer = null;
        }
        restoreOuterContainer();
        window.removeEventListener('resize', handleResize);
        playerElement = null;
        outerContainer = null;
        innerContainer = null;
        videoElement = null;
        ivVideoContent = null;
        bottomChrome = null;
        initializedUrl = null;
        isMiniPlayerActive = false;
        isDragging = false;
        storedPlayerHeight = 0;
    }

    function initialize() {
        playerElement = document.getElementById('player');
        outerContainer = document.getElementById('player-container-outer');
        innerContainer = document.getElementById('player-container-inner');
        videoElement = document.querySelector('video.video-stream.html5-main-video');
        ivVideoContent = document.querySelector('.ytp-iv-video-content');
        bottomChrome = document.querySelector('.ytp-chrome-bottom');

        if (playerElement && outerContainer && innerContainer && videoElement) {
            observePlayerVisibility();
            window.addEventListener('resize', handleResize);
            if (observer) {
                observer.disconnect();
                observer = null;
            }
            isMiniPlayerActive = false;

            const rect = playerElement.getBoundingClientRect();
            if (rect.bottom < 0) minimizeOuterContainer();
            else restoreOuterContainer();

            initializedUrl = location.href;
        } else {
            waitForElements();
        }
    }

    function checkUrlAndInitialize() {
        if (location.pathname.startsWith('/watch')) {
            if (location.href !== initializedUrl) {
                cleanup();
                setTimeout(() => initialize(), 500);
            }
        } else {
            cleanup();
        }
    }

    function startUrlWatcher() {
        setInterval(() => {
            if (location.href !== lastUrl) {
                lastUrl = location.href;
                checkUrlAndInitialize();
            }
        }, 300);
    }

    function start() {
        checkUrlAndInitialize();
        startUrlWatcher();
    }

    if (document.readyState === 'complete' || document.readyState === 'interactive') {
        start();
    } else {
        document.addEventListener('DOMContentLoaded', start);
    }

    GM_addStyle(`
        .${miniPlayerClass} {
            transition: width 0.3s ease, height 0.3s ease, right 0.3s ease, bottom 0.3s ease, top 0.3s ease, left 0.3s ease;
            cursor: move;
        }
    `);
})();