Hide from YouTube's mobile browser any videos that are recommended more than twice. You can also hide by channel or by partial title.
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// ==UserScript==
// @name YouTube Mobile Repeated Recommendations Hider
// @description Hide from YouTube's mobile browser any videos that are recommended more than twice. You can also hide by channel or by partial title.
// @version 1.15
// @author BLBC (github.com/hjk789, greasyfork.org/users/679182-hjk789)
// @copyright 2020+, BLBC (github.com/hjk789, greasyfork.org/users/679182-hjk789)
// @homepage https://github.com/hjk789/Userscripts/tree/master/YouTube-Mobile-Repeated-Recommendations-Hider
// @license https://github.com/hjk789/Userscripts/tree/master/YouTube-Mobile-Repeated-Recommendations-Hider#license
// @match https://m.youtube.com
// @match https://m.youtube.com/?*
// @match https://m.youtube.com/watch?v=*
// @grant GM.setValue
// @grant GM.getValue
// @grant GM.listValues
// @grant GM.deleteValue
// @namespace https://greasyfork.org/users/679182
// ==/UserScript==
//********** SETTINGS ***********
const maxRepetitions = 2 // The maximum number of times that the same recommended video is allowed to appear on your
// homepage before starting to get hidden. Set this to 1 if you want one-time recommendations.
const filterPremiere = false // Whether to include in the filtering repeated videos yet to be premiered. If set to false, the recommendation won't get "remembered"
// until the video is finally released, then it will start counting as any other video. Set this to true if you want to hide them anyway.
const filterRelated = true // Whether the related videos (the ones below the video you are watching) should also be filtered. Set this to false if you want to keep them untouched.
const countRelated = true // When false, new related videos are ignored in the countings and are allowed to appear any number of times, as long as they don't appear in the
// homepage recommendations. If set to true, the related videos are counted even if they never appeared in the homepage.
const dimFilteredHomepage = false // Whether the repeated recommendations in the homepage should get dimmed (partially faded) instead of completely hidden.
const dimFilteredRelated = true // Same thing, but for the related videos.
const dimWatchedVideos = true // Whether the title of videos already watched should be dimmed, to differentiate from the ones you didn't watched yet. The browser itself is responsible for checking whether the
// link was already visited or not, so if you delete a video from the browser history it will be treated as "not watched", the same if you watch them in a private window (incognito).
//*******************************
let channelsToHide, partialTitlesToHide
let processedVideosList, isHomepage
let currentPage = location.href, url
const waitForURLchange = setInterval(function() // Because YouTube is a single-page web app, everything happens in the same page, only changing the URL.
{ // So the script needs to check when the URL changes so it can be reassigned to the page and be able to work.
url = location.href.split("#")[0] // In the mobile layout, when a menu is open, a hash is added to the URL. This hash need to be ignored to prevent incorrect detections.
if (url != currentPage)
{
currentPage = url
main()
}
}, 500)
const onViewObserver = new IntersectionObserver((entries) => // An intersection observer is being used so that the recommendations are counted only
{ // after the user actually sees them on the screen, instead of when they are loaded.
entries.forEach(entry =>
{
if (entry.isIntersecting)
processRecommendation(entry.target, isHomepage)
})
}, {threshold: 1.0}) // Only trigger the observer when the recommendation is completely visible.
if (dimWatchedVideos)
{
// Add the style for dimming watched videos
const style = document.createElement("style")
style.innerHTML = ":visited { color: #aaa !important; }"
document.head.appendChild(style)
}
getGMsettings()
async function getGMsettings()
{
let value = await GM.getValue("channels")
if (!value)
{
value = "[]"
GM.setValue("channels", value)
}
channelsToHide = JSON.parse(value)
value = await GM.getValue("partialTitles")
if (!value)
{
value = "[]"
GM.setValue("partialTitles", value)
}
partialTitlesToHide = JSON.parse(value)
processedVideosList = await GM.listValues() // Get in an array all the items currently in the script's storage. Searching for a value in
// an array is much faster and lighter than calling GM.getValue for every recommendation.
main()
}
function main()
{
isHomepage = !/watch/.test(location.href)
if (isHomepage)
{
const waitForRecommendationsContainer = setInterval(function()
{
const recommendationsContainer = document.querySelector("ytm-rich-grid-renderer")?.children[1]
if (!recommendationsContainer)
return
clearInterval(waitForRecommendationsContainer)
const firstVideos = recommendationsContainer.querySelectorAll("ytm-rich-item-renderer") // Because a mutation observer is being used and the script is run after the page is fully
// loaded, the observer isn't triggered with the recommendations that appear first.
for (let i=0; i < firstVideos.length; i++) // This does the processing manually to these first ones.
processRecommendation(firstVideos[i], isHomepage)
const loadedRecommendedVideosObserver = new MutationObserver(function(mutations) // A mutation observer is being used so that all processings happen only
{ // when actually needed, which is when more recommendations are loaded.
for (let i=0; i < mutations.length; i++)
processRecommendation(mutations[i].addedNodes[0], isHomepage)
})
loadedRecommendedVideosObserver.observe(recommendationsContainer, {childList: true})
}, 100)
}
else
{
const waitForRelatedVideosContainer = setInterval(function()
{
const relatedVideosContainer = document.querySelector("ytm-video-with-context-renderer")?.parentElement
if (!relatedVideosContainer)
return
clearInterval(waitForRelatedVideosContainer)
const firstRelatedVideos = document.querySelectorAll("ytm-video-with-context-renderer")
for (let i=0; i < firstRelatedVideos.length; i++)
processRecommendation(firstRelatedVideos[i], isHomepage)
const loadedRelatedVideosObserver = new MutationObserver(function(mutations) // A mutation observer is being used so that all processings happen only
{ // when actually needed, which is when more recommendations are loaded.
for (let i=0; i < mutations.length; i++)
{
const relatedVideo = mutations[i].addedNodes[0]
if (!relatedVideo) return
if (relatedVideo.className == "spinner")
continue
processRecommendation(relatedVideo, isHomepage)
}
})
loadedRelatedVideosObserver.observe(relatedVideosContainer, {childList: true})
}, 500)
}
}
async function processRecommendation(node, isHomepage)
{
if (!node) return
const videoTitleEll = node.querySelector("h3")
if (!videoTitleEll || !videoTitleEll.textContent)
return
const videoTitleText = videoTitleEll.textContent.toLowerCase() // Convert the title's text to lowercase so that there's no distinction with uppercase letters.
const videoChannel = videoTitleEll.nextSibling.firstChild.firstChild.textContent
const videoUrl = videoTitleEll.parentElement.href.split("&")[0]
const videoMenuBtn = node.querySelector("ytm-menu")
const timeLabelEll = node.querySelector("ytm-thumbnail-overlay-time-status-renderer")
const isNotPremiere = timeLabelEll ? /\d/.test(timeLabelEll.textContent) : true // Check whether the video is still to be premiered. The same element that shows the video time
// length is the one that says "PREMIERE", so if there's a digit in there, then it's not a premiere.
if (videoMenuBtn)
{
videoMenuBtn.onclick = function()
{
const waitForMenu = setInterval(function(node, videoChannel)
{
const menu = document.getElementById("menu")
if (menu)
{
clearInterval(waitForMenu)
const hideChannelButton = document.createElement("button")
hideChannelButton.id = "hideChannelButton"
hideChannelButton.className = "menu-item-button"
hideChannelButton.innerText = "Hide videos from this channel"
hideChannelButton.onclick = function()
{
if (confirm("Are you sure you want to hide all videos from the channel ''" + videoChannel + "''?"))
{
channelsToHide.push(videoChannel)
GM.setValue("channels", JSON.stringify(channelsToHide))
}
}
const hidePartialTitleButton = document.createElement("button")
hidePartialTitleButton.id = "hidePartialTitleButton"
hidePartialTitleButton.className = "menu-item-button"
hidePartialTitleButton.innerText = "Hide videos that include a text"
hidePartialTitleButton.onclick = function()
{
const partialText = prompt("Specify the partial title of the videos to hide. All videos that contain this text in the title will get hidden.")
if (partialText)
{
partialTitlesToHide.push(partialText.toLowerCase())
GM.setValue("partialTitles", JSON.stringify(partialTitlesToHide))
}
}
if (!document.getElementById("hideChannelButton") && !document.getElementById("hidePartialTitleButton"))
{
menu.firstChild.appendChild(hideChannelButton)
menu.firstChild.appendChild(hidePartialTitleButton)
}
}
}, 100, node, videoChannel)
}
}
if (channelsToHide.includes(videoChannel) || partialTitlesToHide.some(p => videoTitleText.includes(p)))
{
node.style.display = "none"
}
else if (processedVideosList.includes("hide::"+videoUrl))
{
if (!isHomepage && !filterRelated)
return
hideOrDimm(node, isHomepage)
}
else
{
if (!node.classList.contains("offView"))
{
node.classList.add("offView") // Add this class to mark the recommendations waiting to be counted.
onViewObserver.observe(node) // Wait for the recommendation to appear on screen.
return // And don't do anything else until that happens.
}
else
{
node.classList.remove("offView")
onViewObserver.unobserve(node) // When the recommendation finally appears on the screen and is processed, stop observing it so it doesn't trigger the observer again.
}
if (maxRepetitions == 1) // If the script is set to show only one-time recommendations, to avoid unnecessary processings,
{ // rightaway mark to hide, in the next time the page is loaded, every video not found in the storage.
if (!isHomepage && !countRelated)
return
if (isNotPremiere || filterPremiere)
{
GM.setValue("hide::"+videoUrl,"")
processedVideosList.push("hide::"+videoUrl)
return
}
}
else
var value = await GM.getValue(videoUrl)
if (typeof value == "undefined")
{
if (!isHomepage && !countRelated)
return
value = 1
}
else
{
if (value >= maxRepetitions)
{
if (!isHomepage && !filterRelated)
return
hideOrDimm(node, isHomepage)
GM.deleteValue(videoUrl)
GM.setValue("hide::"+videoUrl,"")
processedVideosList.push("hide::"+videoUrl)
return
}
if (!isHomepage && !countRelated)
return
value++
}
if (isNotPremiere || filterPremiere)
GM.setValue(videoUrl, value)
}
}
function hideOrDimm(node, isHomepage)
{
if (isHomepage && dimFilteredHomepage || !isHomepage && dimFilteredRelated)
node.style.opacity = 0.4
else
node.style.display = "none"
}