User:Polygnotus/Scripts/NextComment.js
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Documentation for this user script can be added at User:Polygnotus/Scripts/NextComment.
// <nowiki>
// Navigate between your own comments on Wikipedia talk pages
// Add this to your common.js file
(function() {
'use strict';
// Only run on talk pages
if (mw.config.get('wgNamespaceNumber') % 2 !== 1) {
return;
}
mw.loader.using(['mediawiki.util'], function() {
var username = mw.config.get('wgUserName');
if (!username) {
return; // Not logged in
}
// Find all comment signatures using data-mw-comment-sig attribute
var signatures = [];
var processedComments = new Set();
var commentSigs = document.querySelectorAll('[data-mw-comment-sig]');
commentSigs.forEach(function(sigSpan) {
// Get the comment ID from the data attribute
var commentId = sigSpan.getAttribute('data-mw-comment-sig');
// Skip if already processed
if (processedComments.has(commentId)) {
return;
}
// Check if this comment is by the current user
var authorMatch = commentId.match(/^c-([^-]+)-/);
if (!authorMatch || authorMatch[1] !== username.replace(/ /g, '_')) {
return;
}
// Find the User: link (not User_talk:) in the signature
var userLink = sigSpan.parentElement.querySelector('a[href^="/wiki/User:' + username.replace(/ /g, '_') + '"]');
if (userLink && !userLink.getAttribute('href').includes('User_talk:')) {
// Find the parent container (usually <dd> or <li>)
var commentContainer = sigSpan.closest('dd, li');
signatures.push({
link: userLink,
container: commentContainer,
commentId: commentId
});
processedComments.add(commentId);
}
});
if (signatures.length === 0) {
return; // No signatures found
}
// Sort by position in document
signatures.sort(function(a, b) {
return a.link.compareDocumentPosition(b.link) & Node.DOCUMENT_POSITION_FOLLOWING ? -1 : 1;
});
// Function to highlight a comment
function highlightComment(sig, duration) {
duration = duration || 2000;
// Find the start and end markers
var startMarker = document.querySelector('[data-mw-comment-start][id="' + sig.commentId + '"]');
var endMarker = document.querySelector('[data-mw-comment-end="' + sig.commentId + '"]');
if (!startMarker || !endMarker) {
return;
}
// Find the container (dd or li) that holds this comment
var container = startMarker.closest('dd, li');
if (!container) {
return;
}
// Collect all block elements in this container up to (but not including) nested replies
var elementsToHighlight = [];
function collectElements(node) {
if (node === endMarker) {
return true; // Stop when we hit end marker
}
if (node.nodeType === Node.ELEMENT_NODE) {
var tagName = node.tagName;
// If we hit a nested dl/ul/ol, stop - that's a reply
if ((tagName === 'DL' || tagName === 'UL' || tagName === 'OL') && node !== container) {
return true;
}
// Collect block elements
if (tagName === 'P' || tagName === 'DD' || tagName === 'DIV') {
elementsToHighlight.push(node);
}
// Recursively check children
for (var i = 0; i < node.childNodes.length; i++) {
if (collectElements(node.childNodes[i])) {
return true;
}
}
}
return false;
}
// Start collecting from the container
for (var i = 0; i < container.childNodes.length; i++) {
if (collectElements(container.childNodes[i])) {
break;
}
}
// If no block elements found, just highlight the container
if (elementsToHighlight.length === 0) {
elementsToHighlight = [container];
}
// Apply highlighting
var originalStyles = [];
elementsToHighlight.forEach(function(elem) {
originalStyles.push({
element: elem,
backgroundColor: elem.style.backgroundColor,
transition: elem.style.transition
});
elem.style.backgroundColor = '#ffff99';
elem.style.transition = 'background-color 0.3s';
});
// Fade out
setTimeout(function() {
originalStyles.forEach(function(item) {
item.element.style.backgroundColor = item.backgroundColor;
});
setTimeout(function() {
originalStyles.forEach(function(item) {
item.element.style.transition = item.transition;
});
}, 300);
}, duration);
}
// Add navigation buttons before each signature
signatures.forEach(function(sig, index) {
var navSpan = document.createElement('span');
navSpan.style.marginRight = '5px';
navSpan.style.fontSize = '0.9em';
// Previous button
if (index > 0) {
var prevBtn = document.createElement('a');
prevBtn.href = '#';
prevBtn.textContent = '<';
prevBtn.title = 'Previous comment by ' + username;
prevBtn.style.textDecoration = 'none';
prevBtn.style.fontWeight = 'bold';
prevBtn.style.padding = '0 3px';
prevBtn.onclick = function(e) {
e.preventDefault();
var targetSig = signatures[index - 1];
targetSig.link.scrollIntoView({ behavior: 'smooth', block: 'center' });
highlightComment(targetSig);
};
navSpan.appendChild(prevBtn);
} else {
var prevPlaceholder = document.createElement('span');
prevPlaceholder.textContent = ' ';
prevPlaceholder.style.padding = '0 3px';
navSpan.appendChild(prevPlaceholder);
}
// Next button
if (index < signatures.length - 1) {
var nextBtn = document.createElement('a');
nextBtn.href = '#';
nextBtn.textContent = '>';
nextBtn.title = 'Next comment by ' + username;
nextBtn.style.textDecoration = 'none';
nextBtn.style.fontWeight = 'bold';
nextBtn.style.padding = '0 3px';
nextBtn.onclick = function(e) {
e.preventDefault();
var targetSig = signatures[index + 1];
targetSig.link.scrollIntoView({ behavior: 'smooth', block: 'center' });
highlightComment(targetSig);
};
navSpan.appendChild(nextBtn);
}
// Insert navigation before the signature link
sig.link.parentNode.insertBefore(navSpan, sig.link);
});
// Add indicator to show total comments
mw.util.addPortletLink('p-tb', '#', 'Your comments: ' + signatures.length, 'pt-mycomments', 'Jump to your first comment');
document.getElementById('pt-mycomments').addEventListener('click', function(e) {
e.preventDefault();
if (signatures.length > 0) {
signatures[0].link.scrollIntoView({ behavior: 'smooth', block: 'center' });
highlightComment(signatures[0]);
}
});
});
})();
// </nowiki>