Ignore specific users' comments to avoid obnoxious flame wars
// ==UserScript==
// @name Ignore InsideNU commenters
// @description Ignore specific users' comments to avoid obnoxious flame wars
// @namespace com.steve
// @include http://www.insidenu.com/*
// @version 1
// @require http://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_deleteValue
// @grant GM_listValues
// ==/UserScript==
(function ($) {
"use strict";
// Gets a key corresponding to this author's ignore status in the greasemonkey store for this script
function key(author) {
return 'ignore_' + author;
}
// Sets a user's ignore status and makes their comments invisible
function ignore (author) {
GM_setValue(key(author), 'true');
find_comments_by(author).each(function () {
handle_ignored_comment($(this), author);
});
}
// Unsets a user's ignore status and makes their comments visible
function unignore (author) {
GM_deleteValue(key(author));
find_comments_by(author).each(function () {
handle_unignored_comment($(this), author);
});
}
// Gets a value indicating whether the given author is ignored
function is_ignored(author) {
return GM_getValue(key(author), false);
}
// Returns a jquery list of DOM nodes for comments by a particular author
function find_comments_by(author) {
return $('.comment').filter(function () {
return $(this).find('.poster').text() == author;
});
}
// Given a comment and its author,
// - ensure the comment is not visible
// - remove any buttons related to 'ignoring' the user
// - Add a message indicating that hte user has been ignored
// - Add a button to unignore
function handle_ignored_comment ($comment, author) {
$comment.find('.title, .cbody, .sig').hide();
$comment.find('.ignore-user').remove();
$comment.prepend('<p class="unignore-user">You have ignored ' + author + '</p>');
$comment.find('.user_actions').append('<a href="javascript: void(0)" class="unignore-user">Un-Ignore ' + author + '</a>');
$comment.find('.unignore-user').click(function () { unignore(author); });
}
// Given a comment and its author,
// - ensure the comment is visible
// - remove any buttons related to 'unignoring' the user
// - add the ignore button
function handle_unignored_comment ($comment, author) {
$comment.find('.title, .cbody, .sig').show();
$comment.find('.unignore-user').remove();
$comment.find('.user_actions').append('<a href="javascript: void(0)" class="ignore-user">Ignore ' + author + '</a>');
$comment.find('.ignore-user').click(function () { ignore(author); });
}
// Given a comment,
// - check if it's been scanned before, if so return early if not mark scanned
// - get the author of the comment
// - if the author is ignored hide it and add the button to unhide
// - if not, add the button to ignore
function handle_comment($comment) {
if ($comment.data('scanned')) { return; }
$comment.data('scanned', true);
var author = $comment.find('.poster').text();
if (is_ignored(author)) {
handle_ignored_comment($comment, author);
}
else {
handle_unignored_comment($comment, author);
}
}
// Scan comments as they come in
var observer = new MutationObserver(function (mutations) {
mutations.forEach(function (mutation) {
var nodes = Array.prototype.slice.call(mutation.addedNodes);
nodes.filter(function (node) { return node.nodeType == Node.ELEMENT_NODE && $(node).is('.citem'); })
.forEach(function (node) {
handle_comment($(node).find('.comment'));
})
});
});
var config = { childList: true, subtree: true };
observer.observe(document.getElementById('comments'), config);
// First run: scan all comments (race conditions handled by 'scanned' data member)
$('#comments .comment').each(function () { handle_comment($(this)); });
})(jQuery.noConflict());