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Adds functionality to collapse entire Youtube comments on double-click, leaving only the thumbnail and context menu visible
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| // ==UserScript== | |
| // @name Collapse Youtube comments | |
| // @namespace https://nunocunha.pt/ | |
| // @version 1.0.3 | |
| // @description Adds functionality to collapse entire Youtube comments on double-click, leaving only the thumbnail and context menu visible | |
| // @author Nuno Cunha | |
| // @match https://www.youtube.com/* | |
| // @icon https://www.google.com/s2/favicons?sz=64&domain=youtube.com | |
| // @license MIT | |
| // @updateURL https://gist.github.com/nunocunha/2484bfcf3e4d0b743da26c592582da82/raw/collapse-youtube-comments.user.js | |
| // @downloadURL https://gist.github.com/nunocunha/2484bfcf3e4d0b743da26c592582da82/raw/collapse-youtube-comments.user.js | |
| // ==/UserScript== | |
| /* | |
| * MIT License | |
| * | |
| * Copyright (c) 2026 Nuno Cunha | |
| * | |
| * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| * of this software and associated documentation files (the "Software"), to deal | |
| * in the Software without restriction, including without limitation the rights | |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| * copies of the Software, and to permit persons to whom the Software is | |
| * furnished to do so, subject to the following conditions: | |
| * | |
| * The above copyright notice and this permission notice shall be included in all | |
| * copies or substantial portions of the Software. | |
| * | |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| * SOFTWARE. | |
| * | |
| */ | |
| (function() { | |
| 'use strict'; | |
| function showComment(comment) { | |
| comment.dataset.isHidden = false; | |
| comment.style.height = ""; | |
| comment.style.overflow = ""; | |
| const commentBody = comment.querySelector('#comment #body #main'); | |
| if (commentBody != null) { | |
| commentBody.style.visibility = ""; | |
| } | |
| } | |
| function hideComment(comment) { | |
| const avatarHeight = comment.querySelector('yt-img-shadow')?.clientHeight ?? 36; | |
| comment.dataset.isHidden = true; | |
| comment.style.height = `${avatarHeight}px`; | |
| comment.style.overflow = "hidden"; | |
| const commentBody = comment.querySelector('#comment #body #main'); | |
| if (commentBody != null) { | |
| commentBody.style.visibility = "hidden"; | |
| } | |
| } | |
| function toggleCommentVisibility(comment) { | |
| const isHidden = JSON.parse(comment.dataset.isHidden?.toLocaleLowerCase() ?? false); | |
| if (isHidden) { | |
| showComment(comment); | |
| } else { | |
| hideComment(comment); | |
| } | |
| } | |
| const bodyObserver = new MutationObserver((mutationList) => { | |
| const newNodes = mutationList.map(m => [...m.addedNodes]).flat(); | |
| const comments = newNodes.filter(n => n.nodeName.toLocaleLowerCase() === 'ytd-comment-thread-renderer'); | |
| comments.forEach((comment) => { | |
| const commentBody = comment.querySelector('#body'); | |
| commentBody.addEventListener('dblclick', () => toggleCommentVisibility(comment)); | |
| }); | |
| }); | |
| bodyObserver.observe(document.querySelector('ytd-app'), {childList: true, subtree: true}); | |
| })(); |
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