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Swaps the comments and related videos sections, so you can read the comments while watching the video.
// ==UserScript==
// @name Youtube Comments Sidebar
// @namespace http://ronnyjohn.work
// @version 1.0
// @description Swaps the comments and related videos sections, so you can read the comments while watching the video.
// @author Ronny John
// @exclude http://www.youtube.com/embed/*
// @exclude https://www.youtube.com/embed/*
// @match http://www.youtube.com/*
// @match https://www.youtube.com/*
// @grant GM_addStyle
// ==/UserScript==
(function() {
'use strict';
var mutationObserver = window.MutationObserver || window.WebKitMutationObserver;
var watchModeObserver, sidebarAdObserver, page, sidebar, ads, related, relatedParent, relatedWrapper, comments, footer;
var onResizeFunc = function() { setPositions(); setHeights(); console.log('resize'); };
var onScrollFunc = function() { setHeights(); };
var modificationDone = false;
if (typeof mutationObserver === 'undefined') return;
// a little style adjustment
if (typeof(GM_addStyle) === typeof(Function)) {
GM_addStyle('#watch7-sidebar-contents.sidebar-comments { position: fixed; z-index: 1; } #watch-discussion.sidebar-comments { position: fixed; padding: 0 6px; overflow: hidden; overflow-y: auto; z-index: 2; } #watch-discussion.sidebar-comments .comment-section-renderer-paginator { margin: 0; } #watch7-sidebar { -moz-transition: all 0s !important; -webkit-transition: all 0s !important; -o-transition: all 0s !important; transition: all 0s !important; }');
}
initialize();
var contentObserver = createContentObserver();
contentObserver.observe(document.getElementById('content'), {childList: true, subtree: true});
function initialize() {
page = document.getElementById('page');
sidebar = document.getElementById('watch7-sidebar-contents');
related = document.getElementById('watch-related');
comments = document.getElementById('watch-discussion');
footer = document.getElementById('footer-container');
// if modification is already done, stop initialization (can be cached on browser navigate back and forward)
if (related && comments && related.parentNode.parentNode == comments.parentNode) {
return;
}
removeListeners();
if (watchModeObserver) watchModeObserver.disconnect();
if (sidebarAdObserver) sidebarAdObserver.disconnect();
// skip if no video is shown or playlist is open
if (!sidebar || !comments || !related || document.getElementById('watch-appbar-playlist')) {
return;
}
relatedParent = related.parentNode;
watchModeObserver = createWatchModeObserver();
watchModeObserver.observe(page, {attributes: true});
// if stage mode is active, do not run modifications
if (page.classList.contains('watch-stage-mode')) {
return;
}
runModifications();
// if ads are inserted in the sidebar, the position of the comments must be updated
ads = document.getElementById('google_companion_ad_div');
if (ads) {
sidebarAdObserver = createSidebarAdObserver();
sidebarAdObserver.observe(ads, {childList: true});
}
}
function runModifications() {
// move ads and related
relatedWrapper = document.createElement('div');
relatedWrapper.className = comments.className;
relatedWrapper.appendChild(related);
comments.parentNode.insertBefore(relatedWrapper, comments);
// comments node can't be moved, because loading of replies is not working properly then
sidebar.classList.add('sidebar-comments');
comments.className = 'sidebar-comments';
window.addEventListener('resize', onResizeFunc);
window.addEventListener('scroll', onScrollFunc);
onResizeFunc();
modificationDone = true;
}
function revertModifications() {
sidebar.classList.remove('sidebar-comments');
sidebar.style.width = 'auto';
sidebar.style.height = 'auto';
relatedParent.appendChild(related);
comments.className = relatedWrapper.className;
comments.style.width = 'auto';
comments.style.height = 'auto';
relatedWrapper.remove();
removeListeners();
modificationDone = false;
}
function removeListeners() {
window.removeEventListener('resize', onResizeFunc);
window.removeEventListener('scroll', onScrollFunc);
}
function setPositions() {
var sidebarParentRect = sidebar.parentNode.getBoundingClientRect();
sidebar.style.top = (sidebarParentRect.top + scrollY) + 'px';
sidebar.style.left = sidebarParentRect.left + 'px';
sidebar.style.width = (sidebarParentRect.right - sidebarParentRect.left) + 'px';
var containerRect = relatedParent.getBoundingClientRect();
comments.style.top = containerRect.bottom + 'px';
comments.style.left = containerRect.left + 'px';
comments.style.width = (containerRect.right - containerRect.left) + 'px';
}
function setHeights() {
var sidebarRect = sidebar.getBoundingClientRect();
var containerRect = relatedParent.getBoundingClientRect();
var footerRect = footer.getBoundingClientRect();
var bottom = document.documentElement.clientHeight;
if (footerRect.top < bottom) {
bottom = footerRect.top;
}
var commentsHeight = bottom - containerRect.bottom - 20;
sidebar.style.height = (containerRect.bottom - sidebarRect.top + commentsHeight + 10) + 'px';
comments.style.height = commentsHeight + 'px';
}
function createContentObserver() {
return new mutationObserver(function(mutations) {
mutations.forEach(function(mutation) {
if (mutation.addedNodes !== null) {
for (var i=0; i < mutation.addedNodes.length; i++) {
var node = mutation.addedNodes[i];
if (node.id == 'watch7-container' || node.id == 'watch7-main-container') {
initialize();
break;
}
}
}
});
});
}
function createWatchModeObserver() {
return new mutationObserver(function(mutations) {
for (var i=0; i<mutations.length; i++) {
if (mutations[i].attributeName === "class") {
if (page.classList.contains('watch-stage-mode') && modificationDone) {
revertModifications();
} else if (!page.classList.contains('watch-stage-mode') && !modificationDone) {
runModifications();
}
}
}
});
}
function createSidebarAdObserver() {
return new mutationObserver(function(mutations) {
mutations.forEach(function(mutation) {
if (mutation.addedNodes !== null) {
onResizeFunc();
}
});
});
}
})();