Invidious save video progress

Locally saves video progress on invidio.us and adds some more functonality such as: link to watch history, links to alternate invious instances, copying invidious links with timestamp, quick copy/open youtube link from list view.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

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

(I already have a user script manager, let me install it!)

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.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Invidious save video progress
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Locally saves video progress on invidio.us and adds some more functonality such as: link to watch history, links to alternate invious instances, copying invidious links with timestamp, quick copy/open youtube link from list view.
// @author       Noruf
// @match        https://invidio.us/*
// @match        https://invidious.snopyta.org/*
// @match        https://invidiou.sh/*
// @match        https://yewtu.be/*
// @match        https://invidious.toot.koeln/*
// @grant        none
// ==/UserScript==



(function() {
    'use strict';
    const timestamps = localStorage.timestamps ? JSON.parse(localStorage.timestamps) : {};
    let search = window.location.search;
    const isVideoPage = window.location.pathname.includes('watch');
    const videoId = isVideoPage? window.location.search.match(/v=(.*?)(&|$)/)[1]: ' ';
    const instances = ["invidio.us","invidious.snopyta.org","invidiou.sh","yewtu.be","invidious.toot.koeln"].filter(x => x!=window.location.hostname);

//    onReadyEvent(addOtherSources);
    var url = new URL(window.location.href);
    var time = url.searchParams.get("t");
    if(!time&&timestamps[videoId]){
        search = replaceQueryParam('t', timestamps[videoId], search);
        window.location.replace(window.location.pathname + search);
    }
    onReadyEvent(addHistoryButton);
    onReadyEvent(changeLinks);
    if(isVideoPage) onReadyEvent(videoProgressMain);
    onReadyEvent(addCopyYoutubeLinkButton);

    function replaceQueryParam(param, newval, search) {
        const regex = new RegExp("([?;&])" + param + "[^&;]*[;&]?");
        const query = search.replace(regex, "$1").replace(/&$/, '');
        return (query.length > 2 ? query : "?") + (newval ? "&" + param + "=" + newval : '');
    }

    function onReadyEvent(callback){
        // in case the document is already rendered
        if (document.readyState!='loading') callback();
        // modern browsers
        else if (document.addEventListener) document.addEventListener('DOMContentLoaded', callback);
        // IE <= 8
        else {document.attachEvent('onreadystatechange', function(){
            if (document.readyState=='complete') callback();
        });}
    }

    function altLinks(altP){
        const altLink = document.createElement("a");
        altLink.appendChild(document.createTextNode("Alternate source"));
        altLink.style.cursor = "pointer";

        const linkList = document.createElement("div");
        linkList.style.display = "none"
        for (let inst of instances){
            const a = document.createElement("a");
            a.href = `https://${inst}/watch?v=${videoId}`;
            a.appendChild(document.createTextNode(inst));
            linkList.appendChild(a);
            linkList.appendChild(document.createElement("br"));
        }
        altLink.onclick = function(){
            linkList.style.display = linkList.style.display=="none"?"block":"none"
        }
        altP.appendChild(altLink);
        altP.appendChild(linkList);

    }

    function addCopyYoutubeLinkButton(){
        if(!isVideoPage)return;
        const a = document.querySelector('a[href*="youtube"');
        const p = document.createElement("a");
        p.appendChild(document.createTextNode(" copy"));
        a.parentElement.append(p);
        p.onclick = () => {
            copyToClipboard(a.href);
        };
        p.style.cursor = "pointer";
        const altP = document.createElement("p");
        altLinks(altP)
        const ul = p.parentElement.parentElement;
        ul.insertBefore(altP,ul.childNodes[2]);
    }


    function addHistoryButton(){
        const userfield = document.querySelector('.user-field');
        const newdiv = document.createElement('div');
        newdiv.className = 'pure-u-1-4';
        userfield.prepend(newdiv);
        const anchor = document.createElement('a');
        anchor.href = '/feed/history';
        anchor.className = 'pure-menu-heading';
        newdiv.append(anchor);
        const i = document.createElement('i');
        i.className = 'icon ion-md-time';
        anchor.append(i);
    }
    function changeLinks(){
        const thumbnails = document.querySelectorAll('div.thumbnail');
        thumbnails.forEach(t =>{
            const a = t.parentElement;
            const href = a.href;
            if(!href.includes("watch"))return;
            const id = href.match(/v=(.*?)(&|$)/)[1];
            if(timestamps[id]){
                a.href = `${href}&t=${timestamps[id]}s`;
            }
            if(isVideoPage)return;
            const YT = replaceQueryParam('list', '', href).replace(window.location.host,'youtube.com');
            const copy = document.createElement("a");
            copy.appendChild(document.createTextNode("copy"));
            const open = document.createElement("a");
            open.href = YT;
            open.appendChild(document.createTextNode("open"));
            const div = document.createElement('h5');
            div.style['text-align'] = 'right';
            div.style['margin-top'] = '-5%';
            div.append('YT link: ',copy,' ',open);
            a.parentElement.append(div);
            copy.onclick = () => {
                copyToClipboard(YT);
            };
        });
    }

    function videoProgressMain (){
        const player = document.querySelector('video');
        player.onpause = () => {saveProgress(false)};
        window.addEventListener('beforeunload', function (e) {
            saveProgress(false);
            e.returnValue = ''; // Chrome requires returnValue to be set.
        });
        const saveToClipboard = document.createElement("BUTTON");
        saveToClipboard.className = "pure-button";
        saveToClipboard.appendChild(document.createTextNode("Save To Clipboard"))
        document.querySelector('#subscribe').parentElement.appendChild(saveToClipboard);
        const message = document.createElement("span");
        document.querySelector('#genre').parentElement.appendChild(message);
        saveToClipboard.onclick = () => {
            saveProgress(true);
        }
        function saveProgress(doCopy){
            const time = Math.floor(document.querySelector('video').currentTime);
            if(isNaN(player.duration))return;
            if(doCopy){
                copyToClipboard(getURL(time));
            }
            timestamps[videoId] = time;
            if(time < 60 || player.duration - time < 60) {
                delete timestamps[videoId];
                message.innerHTML = `Timestamp not saved!`;
            } else{
                message.innerHTML = `Saved at ${convertSeconds(time)}`;
            }
            history.replaceState( {} , '', replaceQueryParam('t',time,window.location.pathname + window.location.search));
            localStorage.timestamps = JSON.stringify(timestamps);
        }

        function getURL(seconds){
            return `${window.location.origin}/watch?v=${videoId}&t=${seconds}s`;
        }
        function convertSeconds(seconds){
            return new Date(seconds * 1000).toISOString().substr(11, 8);
        }
    }


    function copyToClipboard(text) {
            const textArea = document.createElement("textarea");
            textArea.value = text;
            textArea.style.position = 'fixed';
            textArea.style.top = 0;
            textArea.style.left = 0;
            textArea.style.width = '2em';
            textArea.style.height = '2em';
            textArea.style.padding = 0;
            textArea.style.border = 'none';
            textArea.style.outline = 'none';
            textArea.style.boxShadow = 'none';
            textArea.style.background = 'transparent';
            document.body.appendChild(textArea);
            textArea.focus();
            textArea.select();
            try {
                const successful = document.execCommand('copy');
                const msg = successful ? 'successful' : 'unsuccessful';
                console.log('Copying text command was ' + msg);
            } catch (err) {
                console.error('Oops, unable to copy', err);
            }
            document.body.removeChild(textArea);
    }
})();