Youtube Undistract

Make Youtube less distracting

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

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 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 Undistract
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Make Youtube less distracting
// @author       DA25
// @match        https://www.youtube.com/*
// @icon         https://www.google.com/s2/favicons?domain=youtube.com
// @grant        GM_addStyle
// @license.     MIT 
// ==/UserScript==

(function() {
    'use strict';

    let urlCheckIntervalId = null;
    let lastUrl = '';
    let stopListening;
    let lastPageName;
    let currentPageName;

    const watchVideoPage = {
        name: 'watchVideoPage',
        matches: (document) => {
            const url = document.location.href;
            const regex = /^https:\/\/www\.youtube\.com\/watch\?v=[\w-]+.*$/;
            return regex.test(url);
        },
        init: (document) => {
            console.log('watchVideoPage: init');
            if (lastPageName === currentPageName) {
                console.log(`Same page: ${currentPageName}, not doing anything`);
                return;
            }
            const hideContentStyles = `
                div#secondary div#secondary-inner {
                    opacity: 0;
                    transition: opacity .25s ease-in-out 0s;
                }
                div#secondary:hover div#secondary-inner {
                    opacity: 1;
                    transition: opacity .25s ease-in-out 0.5s;
                }

                ytd-comments#comments ytd-item-section-renderer#sections {
                    opacity: 0;
                    transition: opacity .25s ease-in-out 0s;
                }
                ytd-comments#comments:hover ytd-item-section-renderer#sections {
                    opacity: 1;
                    transition: opacity .25s ease-in-out 0.5s;
                }

                ytd-compact-video-renderer:has(ytd-thumbnail-overlay-resume-playback-renderer) {
                    opacity: 0.05;
                    transition: opacity .25s ease-in-out 0s;
                }
                ytd-compact-video-renderer:has(ytd-thumbnail-overlay-resume-playback-renderer):hover {
                    opacity: 1;
                    transition: opacity .25s ease-in-out 0.5s;
                }

                .ytp-heat-map-container {
                    display: block !important;
                    opacity: 1 !important;
                }

                #contents ytd-reel-shelf-renderer {
                    display: none
                }
           `;
            const scrollRelatedStyles = `
                div#related:has(ytd-watch-next-secondary-results-renderer) {
                    overflow-y: scroll;
                    outline: 1px solid white;
                    max-height: calc(var(--ytd-watch-flexy-panel-max-height) + var(--ytd-watch-flexy-space-below-player) + var(--ytd-watch-flexy-masthead-height));
                }
            `;

            GM_addStyle(hideContentStyles);
            GM_addStyle(scrollRelatedStyles);

            const scrollHandlerBuilder = (element) => (event) => {
                const deltaY = event.deltaY;
                const contentHeight = element.scrollHeight;
                const visibleHeight = element.offsetHeight;
                const scrollTop = element.scrollTop;

                if ((scrollTop === 0 && deltaY < 0) || ((scrollTop + visibleHeight + 0.5 >= contentHeight) && deltaY > 0)) {
                    event.preventDefault();
                }
            };

            const addScrollListener = (element) => {
                console.log('addScrollListener');
                const scrollHandler = scrollHandlerBuilder(element);
                element.addEventListener('wheel', scrollHandler, { passive: false });
                return () => {
                    console.log('removeScrollListener');
                    element.removeEventListener('wheel', scrollHandler);
                }
            };

            const startListening = () => {
                console.log('enter: startListening');
                if (stopListening) {
                    try {
                        stopListening();
                    } catch(e) {
                        console.error(e);
                    } finally {
                        stopListening = undefined;
                    }
                }
                const relatedVideosContainerEle = document.querySelector('div#related:has(ytd-watch-next-secondary-results-renderer)');
                if (relatedVideosContainerEle) {
                    stopListening = addScrollListener(relatedVideosContainerEle);
                }
            };

            setTimeout(() => startListening(), 4000);
        },
        destroy: () => {
        }
    }

    const homePage = {
        name: 'homePage',
        matches: (document) => {
            const url = document.location.href;
            const regex = /^https:\/\/www\.youtube\.com\/?$/;
            return regex.test(url);
        },
        init: (document) => {
//             document.location.href = 'https://www.youtube.com/playlist?list=WL'
        },
        destroy: () => {}
    };

    const pages = [
        watchVideoPage,
        homePage
    ];

    const startListenPageUrlChange = (callback) => {
        console.log('startListenPageUrlChange');
        if (urlCheckIntervalId === null) {
            lastUrl = document.location.href;

            urlCheckIntervalId = setInterval(() => {
                const currentUrl = document.location.href;
                console.log('checking if page changed', currentUrl !== lastUrl);
                if (currentUrl !== lastUrl) {
                    callback(lastUrl, currentUrl);
                    lastUrl = currentUrl;
                }
            }, 4000); // Check every 1000 milliseconds (1 second)
        }
    }

    const stopListenPageUrlChange = () => {
        console.log('stopListenPageUrlChange');
        if (urlCheckIntervalId !== null) {
            clearInterval(urlCheckIntervalId);
            urlCheckIntervalId = null;
        }
    }

    const checkMatchingPage = () => {
        console.log('checkMatchingPage');
        const matchingPage = pages.find((page) => page.matches(document));

        if (matchingPage) {
            console.log('Matching page found: ', matchingPage.name);
            lastPageName = currentPageName;
            currentPageName = matchingPage.name;
            const lastPage = pages.find((page) => page.name === lastPageName);
            if (lastPage) {
                lastPage.destroy();
            }
            matchingPage.init(document);
        } else {
            console.log('No matching page found');
        }
    }

    const pageChangeHandler = (lastUrl, currentUrl) => {
        console.log('pageChangeHandler: Url Changed: ', currentUrl);
        checkMatchingPage();
    }

    const init = () => {
        console.log('init');
        checkMatchingPage();
    }

    init();
    startListenPageUrlChange(pageChangeHandler)
})();