Hides watched videos from your YouTube subscriptions page
As of
// ==UserScript==
// @name YouTube: Hide Watched Videos
// @namespace https://www.haus.gg/
// @version 4.1.0
// @description Hides watched videos from your YouTube subscriptions page
// @author Ev Haus
// @author netjeff
// @author actionless
// @include http://*.youtube.com/*
// @include http://youtube.com/*
// @include https://*.youtube.com/*
// @include https://youtube.com/*
// ==/UserScript==
// To submit bugs or submit revisions please see visit the repository at:
// https://github.com/EvHaus/youtube-hide-watched
// You can open new issues at:
// https://github.com/EvHaus/youtube-hide-watched/issues
(function (_undefined) {
// ===================================================================
// How much of the video needs to be watched before it will be hidden?
//
// For example, when set to 10 the video will *not* be hidden until
// you've watched at least 10 percent of the video.
//
// If you set to 0 (zero) percent, then if you watch even one second
// of the video, it will be hidden.
//
// Note that YouTube is kind of fuzzy on the watched percent,
// so trying to be very specific with this value may not work
const HiddenThresholdPercent = 10;
// ====================================================================
// Enable for debugging
const __DEV__ = false;
// Set defaults
localStorage.YTHWV_WATCHED = localStorage.YTHWV_WATCHED || 'false';
const logDebug = (msg) => {
// eslint-disable-next-line no-console
if (__DEV__) console.log(msg);
};
// GreaseMonkey no longer supports GM_addStyle. So we have to define
// our own polyfill here
const addStyle = function (aCss) {
const head = document.getElementsByTagName('head')[0];
if (head) {
const style = document.createElement('style');
style.setAttribute('type', 'text/css');
style.textContent = aCss;
head.appendChild(style);
return style;
}
return null;
};
addStyle(`
.YT-HWV-WATCHED-HIDDEN {
display: none !important;
}
.YT-HWV-WATCHED-DIMMED {
opacity: 0.2 /* 0.9 minor dimming, 0.1 extreme dimming */
}
.YT-HWV-HIDDEN-ROW-PARENT {padding-bottom: 10px}
.YT-HWV-BUTTON {
background: transparent;
border: 0;
color: rgb(96,96,96);
cursor: pointer;
height: 40px;
outline: 0;
margin-right: 8px;
padding: 0 8px;
width: 40px;
}
html[dark] .YT-HWV-BUTTON {
color: #EFEFEF;
}
.YT-HWV-BUTTON svg {
height: 24px;
width: 24px;
}
.YT-HWV-MENU {
background: #F8F8F8;
border: 1px solid #D3D3D3;
box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
display: none;
font-size: 12px;
margin-top: -1px;
padding: 10px;
position: absolute;
right: 0;
text-align: center;
top: 100%;
white-space: normal;
z-index: 9999;
}
.YT-HWV-MENU-ON { display: block; }
.YT-HWV-MENUBUTTON-ON span { transform: rotate(180deg) }
`);
/* eslint-disable max-len */
const icons = {
normal: '<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48"><g fill="currentColor"><path d="M24 9C14 9 5.46 15.22 2 24c3.46 8.78 12 15 22 15 10.01 0 18.54-6.22 22-15-3.46-8.78-11.99-15-22-15zm0 25c-5.52 0-10-4.48-10-10s4.48-10 10-10 10 4.48 10 10-4.48 10-10 10zm0-16c-3.31 0-6 2.69-6 6s2.69 6 6 6 6-2.69 6-6-2.69-6-6-6z"/></g></svg>',
dimmed: '<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48"><g fill="currentColor" fill-opacity="0.3"><path d="M24 9C14 9 5.46 15.22 2 24c3.46 8.78 12 15 22 15 10.01 0 18.54-6.22 22-15-3.46-8.78-11.99-15-22-15zm0 25c-5.52 0-10-4.48-10-10s4.48-10 10-10 10 4.48 10 10-4.48 10-10 10zm0-16c-3.31 0-6 2.69-6 6s2.69 6 6 6 6-2.69 6-6-2.69-6-6-6z"/></g></svg>',
hidden: '<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48" viewBox="0 0 48 48"><g fill="currentColor" fill-opacity="0.3"><path d="M24 14c5.52 0 10 4.48 10 10 0 1.29-.26 2.52-.71 3.65l5.85 5.85c3.02-2.52 5.4-5.78 6.87-9.5-3.47-8.78-12-15-22.01-15-2.8 0-5.48.5-7.97 1.4l4.32 4.31c1.13-.44 2.36-.71 3.65-.71zM4 8.55l4.56 4.56.91.91C6.17 16.6 3.56 20.03 2 24c3.46 8.78 12 15 22 15 3.1 0 6.06-.6 8.77-1.69l.85.85L39.45 44 42 41.46 6.55 6 4 8.55zM15.06 19.6l3.09 3.09c-.09.43-.15.86-.15 1.31 0 3.31 2.69 6 6 6 .45 0 .88-.06 1.3-.15l3.09 3.09C27.06 33.6 25.58 34 24 34c-5.52 0-10-4.48-10-10 0-1.58.4-3.06 1.06-4.4zm8.61-1.57l6.3 6.3L30 24c0-3.31-2.69-6-6-6l-.33.03z"/></g></svg>',
};
/* eslint-enable max-len */
// ===========================================================
const debounce = function (func, wait, immediate) {
let timeout;
return (...args) => {
const later = () => {
timeout = null;
if (!immediate) func.apply(this, args);
};
const callNow = immediate && !timeout;
clearTimeout(timeout);
timeout = setTimeout(later, wait);
if (callNow) func.apply(this, args);
};
};
// ===========================================================
const findWatchedElements = function () {
const watched = document.querySelectorAll('.ytd-thumbnail-overlay-resume-playback-renderer');
const withThreshold = Array.from(watched).filter((bar) => {
return bar.style.width && parseInt(bar.style.width, 10) > HiddenThresholdPercent;
});
logDebug(
`[YT-HWV] Found ${watched.length} watched elements ` +
`(${withThreshold.length} within threshold)`
);
return withThreshold;
};
// ===========================================================
const findButtonTarget = function () {
// Button will be injected into the main header menu
return document.querySelector('#container #end #buttons');
};
// ===========================================================
const isButtonAlreadyThere = function () {
return document.querySelectorAll('.YT-HWV-BUTTON').length > 0;
};
// ===========================================================
const determineYoutubeSection = function () {
let youtubeSection = 'misc';
if (window.location.href.indexOf('/watch?') > 0) {
youtubeSection = 'watch';
} else if (window.location.href.match(/.*\/(user|channel)\/.+\/videos/u)) {
youtubeSection = 'channel';
} else if (window.location.href.indexOf('/feed/subscriptions') > 0) {
youtubeSection = 'subscriptions';
} else if (window.location.href.indexOf('/feed/trending') >= 0) {
youtubeSection = 'trending';
}
return youtubeSection;
};
// ===========================================================
const updateClassOnWatchedItems = function () {
// If we're on the History page -- do nothing. We don't want to hide
// watched videos here.
if (window.location.href.indexOf('/feed/history') >= 0) return;
const section = determineYoutubeSection();
const state = localStorage[`YTHWV_STATE_${section}`];
findWatchedElements().forEach((item, _i) => {
// "Subscription" section needs us to hide the "#contents",
// but in the "Trending" section, that class will hide everything.
// So there, we need to hide the "ytd-video-renderer"
let watchedItem;
if (section === 'subscriptions') {
// For rows, hide the row and the header too. We can't hide
// their entire parent because then we'll get the infinite
// page loader to load forever.
watchedItem = (
// Grid item
item.closest('.ytd-grid-renderer') ||
item.closest('.ytd-item-section-renderer') ||
// List item
item.closest('#grid-container')
);
// If we're hiding the .ytd-item-section-renderer element, we need to give it
// some extra spacing otherwise we'll get stuck in infinite page loading
if (watchedItem && watchedItem.classList.contains('ytd-item-section-renderer')) {
watchedItem.closest('ytd-item-section-renderer').classList.add('YT-HWV-HIDDEN-ROW-PARENT');
}
} else if (section === 'channel') {
// Channel "Videos" section needs special handling
watchedItem = item.closest('.ytd-grid-renderer');
} else {
// For home page and other areas
watchedItem = (
item.closest('ytd-rich-item-renderer') ||
item.closest('ytd-video-renderer') ||
item.closest('ytd-grid-video-renderer') ||
item.closest('ytd-compact-video-renderer')
);
}
if (watchedItem) {
// Remove existing classes
watchedItem.classList.remove('YT-HWV-WATCHED-DIMMED');
watchedItem.classList.remove('YT-HWV-WATCHED-HIDDEN');
// Add current class
if (state === 'dimmed') {
watchedItem.classList.add('YT-HWV-WATCHED-DIMMED');
} else if (state === 'hidden') {
watchedItem.classList.add('YT-HWV-WATCHED-HIDDEN');
}
}
});
};
// ===========================================================
const addButton = function () {
if (isButtonAlreadyThere()) {
setButtonState();
return;
}
// Find button target
const target = findButtonTarget();
if (!target) return;
// Generate button DOM
const button = document.createElement('button');
button.classList.add('YT-HWV-BUTTON');
// Attach events
button.addEventListener('click', () => {
const section = determineYoutubeSection();
const state = localStorage[`YTHWV_STATE_${section}`];
logDebug(`[YT-HWV] button clicked while state: ${state}`);
let newState = 'dimmed';
if (state === 'dimmed') {
newState = 'hidden';
} else if (state === 'hidden') {
newState = 'normal';
}
localStorage[`YTHWV_STATE_${section}`] = newState;
setButtonState();
updateClassOnWatchedItems();
});
// Insert button into DOM
target.parentNode.insertBefore(button, target);
setButtonState();
};
const setButtonState = () => {
const section = determineYoutubeSection();
const state = localStorage[`YTHWV_STATE_${section}`] || 'normal';
const button = document.querySelector('.YT-HWV-BUTTON');
if (!button) return;
button.innerHTML = icons[state];
button.setAttribute('title', `Toggle Watched Videos (currently "${state}" for "${section}" section)`);
};
const run = debounce(() => {
logDebug('[YT-HWV] Running check for watched videos');
updateClassOnWatchedItems();
addButton();
}, 250);
// ===========================================================
// Hijack all XHR calls
const send = XMLHttpRequest.prototype.send;
XMLHttpRequest.prototype.send = function (data) {
this.addEventListener('readystatechange', function () {
if (
// Anytime more videos are fetched -- re-run script
this.responseURL.indexOf('browse_ajax?action_continuation') > 0
) {
setTimeout(() => {
run();
}, 0);
}
}, false);
send.call(this, data);
};
// ===========================================================
const observeDOM = (function () {
const MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
const eventListenerSupported = window.addEventListener;
return function (obj, callback) {
logDebug('[YT-HWV] Attaching DOM listener');
// Invalid `obj` given
if (!obj) return;
if (MutationObserver) {
const obs = new MutationObserver(((mutations, _observer) => {
if (mutations[0].addedNodes.length || mutations[0].removedNodes.length) {
// eslint-disable-next-line callback-return
callback(mutations);
}
}));
obs.observe(obj, {childList: true, subtree: true});
} else if (eventListenerSupported) {
obj.addEventListener('DOMNodeInserted', callback, false);
obj.addEventListener('DOMNodeRemoved', callback, false);
}
};
}());
// ===========================================================
logDebug('[YT-HWV] Starting Script');
// YouTube does navigation via history and also does a bunch
// of AJAX video loading. In order to ensure we're always up
// to date, we have to listen for ANY DOM change event, and
// re-run our script.
observeDOM(document.body, run);
run();
}());