YouTube Sub Feed Filter 2

Set up filters for your sub feed

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 or Violentmonkey 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.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

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        YouTube Sub Feed Filter 2
// @version     1.53
// @description Set up filters for your sub feed
// @author      Callum Latham
// @namespace   https://greasyfork.org/users/696211-ctl2
// @license     MIT
// @match       *://www.youtube.com/*
// @match       *://youtube.com/*
// @exclude     *://www.youtube.com/embed/*
// @exclude     *://youtube.com/embed/*
// @require     https://update.greasyfork.org/scripts/446506/1537901/%24Config.js
// @grant       GM.setValue
// @grant       GM.getValue
// @grant       GM.deleteValue
// ==/UserScript==

/* global $Config */

(() => {
// Don't run in frames (e.g. stream chat frame)
if (window.parent !== window) {
	// noinspection JSAnnotator
	return;
}

// User config

const LONG_PRESS_TIME = 400;
const REGEXP_FLAGS = 'i';

// Dev config

const VIDEO_TYPE_IDS = {
	GROUPS: {
		ALL: 'All',
		STREAMS: 'Streams',
		PREMIERES: 'Premieres',
		NONE: 'None',
	},
	INDIVIDUALS: {
		STREAMS_SCHEDULED: 'Scheduled Streams',
		STREAMS_LIVE: 'Live Streams',
		STREAMS_FINISHED: 'Finished Streams',
		PREMIERES_SCHEDULED: 'Scheduled Premieres',
		PREMIERES_LIVE: 'Live Premieres',
		SHORTS: 'Shorts',
		FUNDRAISERS: 'Fundraisers',
		NORMAL: 'Basic Videos',
	},
};

const CUTOFF_VALUES = [
	'Minimum',
	'Maximum',
];

const BADGE_VALUES = [
	'Exclude',
	'Include',
	'Require',
];

function getVideoTypes(children) {
	const registry = new Set();
	
	const register = (value) => {
		if (registry.has(value)) {
			throw new Error(`Overlap found at '${value}'.`);
		}
		
		registry.add(value);
	};
	
	for (const {value} of children) {
		switch (value) {
		case VIDEO_TYPE_IDS.GROUPS.ALL:
			Object.values(VIDEO_TYPE_IDS.INDIVIDUALS).forEach(register);
			break;
		
		case VIDEO_TYPE_IDS.GROUPS.STREAMS:
			register(VIDEO_TYPE_IDS.INDIVIDUALS.STREAMS_SCHEDULED);
			register(VIDEO_TYPE_IDS.INDIVIDUALS.STREAMS_LIVE);
			register(VIDEO_TYPE_IDS.INDIVIDUALS.STREAMS_FINISHED);
			break;
		
		case VIDEO_TYPE_IDS.GROUPS.PREMIERES:
			register(VIDEO_TYPE_IDS.INDIVIDUALS.PREMIERES_SCHEDULED);
			register(VIDEO_TYPE_IDS.INDIVIDUALS.PREMIERES_LIVE);
			break;
		
		default:
			register(value);
		}
	}
	
	return registry;
}

const $config = new $Config(
	'YTSFF_TREE',
	(() => {
		const regexPredicate = (value) => {
			try {
				RegExp(value);
			} catch {
				return 'Value must be a valid regular expression.';
			}
			
			return true;
		};
		
		const videoTypeOptions = Object.values({
			...VIDEO_TYPE_IDS.GROUPS,
			...VIDEO_TYPE_IDS.INDIVIDUALS,
		});
		
		return {
			get: (_, configs) => Object.assign(...configs),
			children: [
				{
					label: 'Filters',
					get: (() => {
						const getRegex = ({children}) => children.length === 0 ?
							null :
							new RegExp(children.map(({value}) => `(${value})`).join('|'), REGEXP_FLAGS);
						
						return ({children}) => ({
							filters: children.map(({'children': [channel, video, type]}) => ({
								channels: getRegex(channel),
								videos: getRegex(video),
								types: type.children.length === 0 ? Object.values(VIDEO_TYPE_IDS.INDIVIDUALS) : getVideoTypes(type.children),
							})),
						});
					})(),
					children: [],
					seed: {
						label: 'Filter Name',
						value: '',
						children: [
							{
								label: 'Channel Regex',
								children: [],
								seed: {
									value: '^',
									predicate: regexPredicate,
								},
							},
							{
								label: 'Video Regex',
								children: [],
								seed: {
									value: '^',
									predicate: regexPredicate,
								},
							},
							{
								label: 'Video Types',
								children: [
									{
										value: VIDEO_TYPE_IDS.GROUPS.ALL,
										options: videoTypeOptions,
									},
								],
								seed: {
									value: VIDEO_TYPE_IDS.GROUPS.NONE,
									options: videoTypeOptions,
								},
								childPredicate: (children) => {
									try {
										getVideoTypes(children);
									} catch ({message}) {
										return message;
									}
									
									return true;
								},
							},
						],
					},
				},
				{
					label: 'Cutoffs',
					get: ({children}) => ({
						cutoffs: children.map(({children}) => {
							const boundaries = [Number.NEGATIVE_INFINITY, Number.POSITIVE_INFINITY];
							
							for (const {'children': [{'value': boundary}, {value}]} of children) {
								boundaries[boundary === CUTOFF_VALUES[0] ? 0 : 1] = value;
							}
							
							return boundaries;
						}),
					}),
					children: [
						{
							label: 'Watched (%)',
							children: [],
							seed: {
								childPredicate: ([{'value': boundary}, {value}]) => {
									if (boundary === CUTOFF_VALUES[0]) {
										return value < 100 ? true : 'Minimum must be less than 100%';
									}
									
									return value > 0 ? true : 'Maximum must be greater than 0%';
								},
								children: [
									{
										value: CUTOFF_VALUES[1],
										options: CUTOFF_VALUES,
									},
									{value: 100},
								],
							},
						},
						{
							label: 'View Count',
							children: [],
							seed: {
								childPredicate: ([{'value': boundary}, {value}]) => {
									if (boundary === CUTOFF_VALUES[1]) {
										return value > 0 ? true : 'Maximum must be greater than 0';
									}
									
									return true;
								},
								children: [
									{
										value: CUTOFF_VALUES[0],
										options: CUTOFF_VALUES,
									},
									{
										value: 0,
										predicate: (value) => Math.floor(value) === value ? true : 'Value must be an integer',
									},
								],
							},
						},
						{
							label: 'Duration (Minutes)',
							children: [],
							seed: {
								childPredicate: ([{'value': boundary}, {value}]) => {
									if (boundary === CUTOFF_VALUES[1]) {
										return value > 0 ? true : 'Maximum must be greater than 0';
									}
									
									return true;
								},
								children: [
									{
										value: CUTOFF_VALUES[0],
										options: CUTOFF_VALUES,
									},
									{value: 0},
								],
							},
						},
					],
				},
				{
					label: 'Badges',
					get: ({children}) => ({badges: children.map(({value}) => BADGE_VALUES.indexOf(value))}),
					children: [
						{
							label: 'Verified',
							value: BADGE_VALUES[1],
							options: BADGE_VALUES,
						},
						{
							label: 'Official Artist',
							value: BADGE_VALUES[1],
							options: BADGE_VALUES,
						},
					],
				},
			],
		};
	})(),
	{
		headBase: '#c80000',
		headButtonExit: '#000000',
		borderHead: '#ffffff',
		borderTooltip: '#c80000',
	},
	{
		zIndex: 10000,
		scrollbarColor: 'initial',
	},
);

const KEY_IS_ACTIVE = 'YTSFF_IS_ACTIVE';

// State

let button;

// Video element helpers

const getAllVideos = () => [...document.getElementById('page-manager').getCurrentPage().contents.ytRendererBehavior.$.primary.firstChild.contentsElement.children]
	.slice(1, -1);

const isShorts = ({data}) => 'shortsLockupViewModel' in data.content;

const isScheduled = (video) => !isShorts(video) && (
	VIDEO_PREDICATES[VIDEO_TYPE_IDS.INDIVIDUALS.STREAMS_SCHEDULED](video)
	|| VIDEO_PREDICATES[VIDEO_TYPE_IDS.INDIVIDUALS.PREMIERES_SCHEDULED](video)
);

// Config testers

const getThumbnailBadges = ({data}) => data.content.lockupViewModel?.contentImage.thumbnailViewModel.overlays[0].thumbnailOverlayBadgeViewModel.thumbnailBadges;

const getUploadTime = ({data}) => {
	const metadataParts = data.content.lockupViewModel?.metadata.lockupMetadataViewModel.metadata.contentMetadataViewModel.metadataRows[1].metadataParts;
	
	return metadataParts && metadataParts[metadataParts.length - 1].text.content;
};

const VIDEO_PREDICATES = {
	[VIDEO_TYPE_IDS.INDIVIDUALS.STREAMS_SCHEDULED]: (video) => getUploadTime(video)?.split(' ')[0] === 'Scheduled',
	[VIDEO_TYPE_IDS.INDIVIDUALS.STREAMS_LIVE]: (video) => getThumbnailBadges(video)?.[0].thumbnailBadgeViewModel.text === 'LIVE',
	[VIDEO_TYPE_IDS.INDIVIDUALS.STREAMS_FINISHED]: (video) => getUploadTime(video)?.split(' ')[0] === 'Streamed',
	[VIDEO_TYPE_IDS.INDIVIDUALS.PREMIERES_SCHEDULED]: (video) => getUploadTime(video)?.split(' ')[0] === 'Premieres',
	[VIDEO_TYPE_IDS.INDIVIDUALS.PREMIERES_LIVE]: (video) => getThumbnailBadges(video)?.[0].thumbnailBadgeViewModel.text === 'Premiere',
	[VIDEO_TYPE_IDS.INDIVIDUALS.SHORTS]: isShorts,
	[VIDEO_TYPE_IDS.INDIVIDUALS.NORMAL]: (video) => {
		const uploadTime = getUploadTime(video);
		
		return uploadTime?.split(' ')[uploadTime.length - 1] === 'ago';
	},
	// todo
	[VIDEO_TYPE_IDS.INDIVIDUALS.FUNDRAISERS]: (video) => getThumbnailBadges(video)?.[0].thumbnailBadgeViewModel.text === 'Fundraiser',
};

const CUTOFF_GETTERS = [
	// Watched %
	(video) => video.data.content.lockupViewModel?.contentImage.thumbnailViewModel.overlays[0].thumbnailBottomOverlayViewModel?.progressBar?.thumbnailOverlayProgressBarViewModel.startPercent
		?? 0,
	// View count
	(video) => {
		// todo nope
		if (isScheduled(video)) {
			return 0;
		}
		
		const {content} = video.data.content.lockupViewModel?.metadata.lockupMetadataViewModel.metadata.contentMetadataViewModel.metadataRows[1].metadataParts[0].text
			?? video.data.content.shortsLockupViewModel.overlayMetadata.secondaryText;
		const [valueString] = content.split(' ');
		const lastChar = valueString.slice(-1);
		
		if (/\d/.test(lastChar)) {
			return Number.parseInt(valueString);
		}
		
		const valueNumber = Number.parseFloat(valueString.slice(0, -1));
		
		switch (lastChar) {
		case 'B':
			return valueNumber * 1000000000;
		case 'M':
			return valueNumber * 1000000;
		case 'K':
			return valueNumber * 1000;
		}
		
		return valueNumber;
	},
	// Duration (minutes)
	(video) => {
		const time = getThumbnailBadges(video)?.[0].thumbnailBadgeViewModel.text;
		
		let minutes = 0;
		
		if (time) {
			const timeParts = time.split(':').map((_) => Number.parseInt(_));
			
			let timeValue = 1 / 60;
			
			for (let i = timeParts.length - 1; i >= 0; --i) {
				minutes += timeParts[i] * timeValue;
				
				timeValue *= 60;
			}
		}
		
		return Number.isNaN(minutes) ? 0 : minutes;
	},
];

const hasChannelBadgeName = ({data}, name) => {
	const badges = data.content.lockupViewModel?.metadata.lockupMetadataViewModel.metadata.contentMetadataViewModel.metadataRows[0].metadataParts[0].text.attachmentRuns;
	
	return Boolean(badges) && badges.some(({element}) => element.type.imageType.image.sources[0].clientResource.imageName === name);
};

const BADGE_PREDICATES = [
	// Verified
	(video) => hasChannelBadgeName(video, 'CHECK_CIRCLE_FILLED'),
	// Official Artist
	(video) => hasChannelBadgeName(video, 'AUDIO_BADGE'),
];

// Hider functions

function shouldHide({filters, cutoffs, badges}, video) {
	try {
		for (let i = 0; i < BADGE_PREDICATES.length; ++i) {
			if (badges[i] !== 1 && Boolean(badges[i]) !== BADGE_PREDICATES[i](video)) {
				return true;
			}
		}
		
		for (let i = 0; i < CUTOFF_GETTERS.length; ++i) {
			const [lowerBound, upperBound] = cutoffs[i];
			const value = CUTOFF_GETTERS[i](video);
			
			if (value < lowerBound || value > upperBound) {
				return true;
			}
		}
		
		const channelName = video.data.content.lockupViewModel?.metadata.lockupMetadataViewModel.metadata.contentMetadataViewModel.metadataRows[0].metadataParts[0].text.content;
		const videoName = video.data.content.lockupViewModel?.metadata.lockupMetadataViewModel.title.content
			?? video.data.content.shortsLockupViewModel.overlayMetadata.primaryText.content;
		
		for (const {'channels': channelRegex, 'videos': videoRegex, types} of filters) {
			if ((!channelRegex || channelName && channelRegex.test(channelName)) && (!videoRegex || videoRegex.test(videoName))) {
				for (const type of types) {
					if (VIDEO_PREDICATES[type](video)) {
						return true;
					}
				}
			}
		}
		
		return false;
	} catch (e) {
		console.error(e);
		debugger;
	}
}

const hideList = (() => {
	const list = [];
	
	let hasReverted = true;
	
	function hide(element, doHide) {
		element.hidden = false;
		
		if (doHide) {
			element.style.display = 'none';
		} else {
			element.style.removeProperty('display');
		}
	}
	
	return {
		'add'(element, doHide = true) {
			if (button.isActive) {
				hasReverted = false;
			}
			
			list.push({element, doHide, wasHidden: element.hidden});
			
			if (button.isActive) {
				hide(element, doHide);
			}
		},
		'revert'(doErase) {
			if (!hasReverted) {
				hasReverted = true;
				
				for (const {element, doHide, wasHidden} of list) {
					hide(element, !doHide);
					
					element.hidden = wasHidden;
				}
			}
			
			if (doErase) {
				list.length = 0;
			}
		},
		'ensure'() {
			if (!hasReverted) {
				return;
			}
			
			hasReverted = false;
			
			for (const {element, doHide} of list) {
				hide(element, doHide);
			}
		},
	};
})();

const showList = (() => {
	const ATTRIBUTE = 'is-in-first-column';
	
	const list = [];
	const observers = [];
	
	let rowLength;
	let rowRemaining = 1;
	let hasReverted = true;
	
	function disconnectObservers() {
		for (const observer of observers) {
			observer.disconnect();
		}
		
		observers.length = 0;
	}
	
	function show(element, isFirst) {
		const act = isFirst ?
			() => element.setAttribute(ATTRIBUTE, true) :
			() => element.removeAttribute(ATTRIBUTE);
		
		act();
		
		const observer = new MutationObserver(() => {
			observer.disconnect();
			
			act();
			
			// Avoids observation cycle that I can't figure out the cause of
			window.setTimeout(() => {
				observer.observe(element, {attributeFilter: [ATTRIBUTE]});
			}, 0);
		});
		
		observer.observe(element, {attributeFilter: [ATTRIBUTE]});
		
		observers.push(observer);
	}
	
	return {
		'add'(element) {
			if (list.length === 0) {
				rowLength = element.itemsPerRow ?? 3;
			}
			
			if (button.isActive) {
				hasReverted = false;
			}
			
			const isFirst = --rowRemaining === 0;
			
			if (isFirst) {
				rowRemaining = rowLength;
			}
			
			list.push({element, isFirst, wasFirst: element.hasAttribute(ATTRIBUTE)});
			
			if (button.isActive) {
				show(element, isFirst);
			}
		},
		'revert'(doErase) {
			if (!hasReverted) {
				hasReverted = true;
				
				disconnectObservers();
				
				for (const {element, wasFirst} of list) {
					show(element, wasFirst);
				}
			}
			
			if (doErase) {
				list.length = 0;
				rowRemaining = 1;
			}
		},
		'ensure'() {
			if (!hasReverted) {
				return;
			}
			
			hasReverted = false;
			
			for (const {element, isFirst} of list) {
				show(element, isFirst);
			}
		},
		'lineFeed'() {
			rowRemaining = 1;
		},
	};
})();

function hideVideo(element, config) {
	// video, else shorts container
	if (element.tagName === 'YTD-RICH-ITEM-RENDERER') {
		if (shouldHide(config, element)) {
			hideList.add(element);
		} else {
			showList.add(element);
		}
		
		return;
	}
	
	let doHide = true;
	
	for (const video of element.querySelectorAll('ytd-rich-item-renderer')) {
		if (shouldHide(config, video)) {
			hideList.add(video);
		} else {
			showList.add(video);
			
			doHide = false;
		}
	}
	
	if (doHide) {
		hideList.add(element);
	} else {
		showList.lineFeed();
	}
}

async function hideVideos(videos = getAllVideos()) {
	const config = $config.get();
	
	for (const video of videos) {
		await Promise.all([
			hideVideo(video, config),
			// Allow the page to update visually before moving on
			new Promise((resolve) => {
				window.setTimeout(resolve, 0);
			}),
		]);
	}
}

// Helpers

function resetConfig(fullReset = true) {
	hideList.revert(fullReset);
	showList.revert(fullReset);
}

function hideFromMutations(mutations) {
	const videos = [];
	
	for (const {addedNodes} of mutations) {
		for (const node of addedNodes) {
			switch (node.tagName) {
			case 'YTD-RICH-ITEM-RENDERER':
			case 'YTD-RICH-SECTION-RENDERER':
				videos.push(node);
			}
		}
	}
	
	hideVideos(videos);
}

function getButtonDock() {
	return document
		.querySelector('ytd-browse[page-subtype="subscriptions"]')
		.querySelector('#contents')
		.querySelector('#title-container')
		.querySelector('#top-level-buttons-computed');
}

// Button

class ClickHandler {
	constructor(button, onShortClick, onLongClick) {
		this.onShortClick = function () {
			onShortClick();
			
			window.clearTimeout(this.longClickTimeout);
			
			window.removeEventListener('mouseup', this.onShortClick);
		}.bind(this);
		
		this.onLongClick = function () {
			window.removeEventListener('mouseup', this.onShortClick);
			
			onLongClick();
		}.bind(this);
		
		this.longClickTimeout = window.setTimeout(this.onLongClick, LONG_PRESS_TIME);
		
		window.addEventListener('mouseup', this.onShortClick);
	}
}

class Button {
	static TEMPLATE = (() => {
		const svgNamespace = 'http://www.w3.org/2000/svg';
		
		const bottom = document.createElementNS(svgNamespace, 'path');
		
		bottom.setAttribute('d', 'M128.25,175.6c1.7,1.8,2.7,4.1,2.7,6.6v139.7l60-51.3v-88.4c0-2.5,1-4.8,2.7-6.6L295.15,65H26.75L128.25,175.6z');
		
		const top = document.createElementNS(svgNamespace, 'rect');
		
		top.setAttribute('x', '13.95');
		top.setAttribute('width', '294');
		top.setAttribute('height', '45');
		
		const g = document.createElementNS(svgNamespace, 'g');
		
		g.appendChild(bottom);
		g.appendChild(top);
		
		const svg = document.createElementNS(svgNamespace, 'svg');
		
		svg.setAttribute('viewBox', '-50 -50 400 400');
		svg.setAttribute('focusable', 'false');
		svg.appendChild(g);
		
		svg.style.width = svg.style.height = '100%';
		svg.style.display = 'inherit';
		
		const wrapper = document.createElement('div');
		
		wrapper.style.width = wrapper.style.height = '100%';
		wrapper.style.display = 'block';
		
		wrapper.appendChild(svg);
		
		return wrapper;
	})();
	
	static CLASS_NAME = 'ytsff-button';
	
	wasActive;
	isActive = false;
	isDormant = false;
	
	constructor() {
		this.element = (() => {
			const {parentElement, 'children': [, openerTemplate]} = getButtonDock();
			const button = openerTemplate.cloneNode(false);
			
			button.classList.add(Button.CLASS_NAME);
			
			if (openerTemplate.innerText) {
				throw new Error('too early');
			}
			
			// 🤷‍♀️
			const policy = trustedTypes?.createPolicy('policy', {createHTML: (string) => string}) ?? {createHTML: (string) => string};
			
			parentElement.appendChild(button);
			
			button.innerHTML = policy.createHTML(openerTemplate.innerHTML);
			
			button.querySelector('yt-button-shape').innerHTML = policy.createHTML(openerTemplate.querySelector('yt-button-shape').innerHTML);
			
			button.querySelector('a').removeAttribute('href');
			
			button.querySelector('.yt-icon-shape').appendChild(Button.TEMPLATE.cloneNode(true));
			
			button.querySelector('tp-yt-paper-tooltip').remove();
			
			return button;
		})();
		
		this.element.addEventListener('mousedown', this.onMouseDown.bind(this));
		
		GM.getValue(KEY_IS_ACTIVE, true).then((isActive) => {
			this.isActive = isActive;
			
			this.update();
			
			const videoObserver = new MutationObserver(hideFromMutations);
			
			videoObserver.observe(
				document.querySelector('ytd-browse[page-subtype="subscriptions"]').querySelector('div#contents'),
				{childList: true},
			);
			
			hideVideos();
		});
		
		let resizeCount = 0;
		
		window.addEventListener('resize', () => {
			const resizeId = ++resizeCount;
			
			this.forceInactive();
			
			const listener = ({detail}) => {
				// column size changed
				if (detail.actionName === 'yt-window-resized') {
					window.setTimeout(() => {
						if (resizeId !== resizeCount) {
							return;
						}
						
						this.forceInactive(false);
						
						// Don't bother re-running filters if the sub page isn't shown
						if (this.isDormant) {
							return;
						}
						
						resetConfig();
						
						hideVideos();
					}, 1000);
					
					document.body.removeEventListener('yt-action', listener);
				}
			};
			
			document.body.addEventListener('yt-action', listener);
		});
	}
	
	forceInactive(doForce = true) {
		if (doForce) {
			// if wasActive isn't undefined, forceInactive was already called
			if (this.wasActive === undefined) {
				// Saves a GM.getValue call later
				this.wasActive = this.isActive;
				this.isActive = false;
			}
		} else {
			this.isActive = this.wasActive;
			this.wasActive = undefined;
		}
	}
	
	update() {
		if (this.isActive) {
			this.setButtonActive();
		}
	}
	
	setButtonActive() {
		if (this.isActive) {
			this.element.querySelector('svg').style.setProperty('fill', 'var(--yt-spec-call-to-action)');
		} else {
			this.element.querySelector('svg').style.setProperty('fill', 'currentcolor');
		}
	}
	
	toggleActive() {
		this.isActive = !this.isActive;
		
		this.setButtonActive();
		
		GM.setValue(KEY_IS_ACTIVE, this.isActive);
		
		if (this.isActive) {
			hideList.ensure();
			showList.ensure();
		} else {
			hideList.revert(false);
			showList.revert(false);
		}
	}
	
	async onLongClick() {
		await $config.edit();
		
		resetConfig();
		
		hideVideos();
	}
	
	onMouseDown(event) {
		if (event.button === 0) {
			new ClickHandler(this.element, this.toggleActive.bind(this), this.onLongClick.bind(this));
		}
	}
}

// Main

(() => {
	const loadButton = async () => {
		if (button) {
			button.isDormant = false;
			
			hideVideos();
			
			return;
		}
		
		try {
			await $config.ready;
		} catch (error) {
			if (!$config.reset) {
				throw error;
			}
			
			if (!window.confirm(`${error.message}\n\nWould you like to erase your data?`)) {
				return;
			}
			
			$config.reset();
		}
		
		let buttonDock;
		
		try {
			buttonDock = getButtonDock();
			
			button = new Button();
		} catch {
			buttonDock?.parentElement.querySelector(`.${Button.CLASS_NAME}`)?.remove();
			
			document.getElementById('page-manager')
				.addEventListener('yt-action', loadButton, {once: true});
		}
	};
	
	const isGridView = () => {
		return Boolean(
			document.querySelector('ytd-browse[page-subtype="subscriptions"]:not([hidden])')
			&& document.querySelector('ytd-browse > ytd-two-column-browse-results-renderer ytd-rich-grid-renderer ytd-rich-item-renderer'),
		);
	};
	
	function onNavigate({detail}) {
		if (detail.endpoint.browseEndpoint) {
			const {params, browseId} = detail.endpoint.browseEndpoint;
			
			// Handle navigation to the sub feed
			if ((params === 'MAE%3D' || !params && (!button || isGridView())) && browseId === 'FEsubscriptions') {
				const emitter = document.querySelector('ytd-app');
				const event = 'yt-action';
				
				if (button || isGridView()) {
					loadButton();
				} else {
					const listener = ({detail}) => {
						if (detail.actionName === 'ytd-update-grid-state-action') {
							if (isGridView()) {
								loadButton();
							}
							
							emitter.removeEventListener(event, listener);
						}
					};
					
					emitter.addEventListener(event, listener);
				}
				
				return;
			}
		}
		
		// Handle navigation away from the sub feed
		if (button) {
			button.isDormant = true;
			
			hideList.revert(true);
			showList.revert(true);
		}
	}
	
	document.body.addEventListener('yt-navigate-finish', onNavigate);
})();
})();