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// ==UserScript==
// @name Reddit comment vote history
// @namespace https://github.com/Farow/userscripts
// @description Saves the comments you vote on
// @include /^https?:\/\/[a-z]+\.reddit\.com\/(?:(?:r\/[\da-z_:+-]+\/)?comments|user\/[\da-z_]+)/
// @version 1.0.1
// @homepageURL https://github.com/Farow/userscripts
// @grant GM_getValue
// @grant GM_setValue
// @grant GM_deleteValue
// @grant GM_listValues
// ==/UserScript==
/*
changelog:
2015-05-03 - 1.0.1
- font size now matches reddit's font size
- no longer apends a hash at the end of the url
2014-08-31 - 1.0.0 - initial release
*/
'use strict';
init();
function init() {
/* create a history button on user profiles */
if (/^https?:\/\/[a-z]+\.reddit\.com\/user\/[\da-zA-Z_]/.exec(document.URL)) {
create_history_button();
}
let comments = document.getElementsByClassName('comment');
if (comments.length === 0) {
return;
}
/* register events for upvoting and downvoting comments */
for (let i = 0; i < comments.length; i++) {
comments[i].children[1].children[0].addEventListener('click', comment_vote); /* upvote */
comments[i].children[1].children[1].addEventListener('click', comment_vote); /* downvote */
}
}
function comment_vote() {
let comment = { };
let comment_node = this.parentNode.parentNode;
comment.id = comment_node.dataset.fullname;
/* upvoted */
if (this.classList.contains('upmod')) {
comment.direction = 'up';
}
/* downvoted */
else if (this.classList.contains('downmod')) {
comment.direction = 'down';
}
/* no vote */
else {
remove_comment(comment.id);
return;
}
comment.author = comment_node.getElementsByClassName('tagline')[0].getElementsByClassName('author')[0].textContent;
comment.time = comment_node.getElementsByClassName('tagline')[0].getElementsByTagName('time')[0].dateTime;
comment.text = comment_node.getElementsByClassName('md')[0].innerHTML;
comment.link = comment_node.getElementsByClassName('buttons')[0].getElementsByTagName('a')[0].href;
save_comment(comment);
}
function create_history_button() {
let tabmenu = document.getElementsByClassName('tabmenu')[0];
if (tabmenu === undefined) {
return;
}
let button = document.createElement('li');
let link = document.createElement('a');
link.classList.add('choice');
link.href = '#';
link.textContent = 'comment vote history';
button.classList.add('comment-vote-history');
button.appendChild(link);
tabmenu.appendChild(button);
link.addEventListener('click', function (e){
fix_sorting_menu();
display_comments('new');
e.preventDefault();
e.stopPropagation();
});
}
function fix_sorting_menu() {
/* make the sort menu work for the saved comments */
let dropdown = document.getElementsByClassName('dropdown')[0];
if (dropdown === undefined) {
return;
}
dropdown.children[0].textContent = 'new';
dropdown = dropdown.nextSibling;
/* remove all links */
while (dropdown.hasChildNodes()){
dropdown.removeChild(dropdown.lastChild);
}
/* create our own */
let sort_by_new = document.createElement('a'),
sort_by_old = document.createElement('a');
sort_by_new.classList.add('choice');
sort_by_new.textContent = 'new';
sort_by_new.href = '#';
sort_by_new.addEventListener('click', function () { set_sort_text(dropdown, 'new'); display_comments('new'); });
sort_by_old.classList.add('choice');
sort_by_old.textContent = 'old';
sort_by_old.href = '#';
sort_by_old.addEventListener('click', function () { set_sort_text(dropdown, 'old'); display_comments('old'); });
dropdown.appendChild(sort_by_new);
dropdown.appendChild(sort_by_old);
}
function set_sort_text(dropdown, sort) {
dropdown.previousSibling.children[0].textContent = sort;
}
function display_comments(sort_by) {
let tabmenu = document.getElementsByClassName('tabmenu')[0];
let site_table = document.getElementById('siteTable');
tabmenu.getElementsByClassName('selected')[0].classList.remove('selected');
tabmenu.getElementsByClassName('comment-vote-history')[0].classList.add('selected');
/* remove all comments */
for (let i = site_table.children.length - 1; i > -1; i--) {
site_table.removeChild(site_table.children[i]);
}
let saved_comments = get_all_comments();
/* sort */
saved_comments.sort(function (a, b) {
if (sort_by == 'new') {
return Date.parse(b.time) - Date.parse(a.time);
}
return Date.parse(a.time) - Date.parse(b.time);
});
for (let i = 0; i < saved_comments.length; i++) {
append_comment(site_table, saved_comments[i]);
}
}
function append_comment(where, comment) {
let comment_div = document.createElement('div'),
entry = document.createElement('div'),
date = new Date(comment.time);
/* create time tooltip string, similar to reddit's */
let date_str = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'][date.getUTCDay()] + ' ' +
['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'][date.getUTCMonth()] + ' ' +
date.getUTCDate() + ' ' + date.getUTCHours() + ':' + date.getUTCMinutes() + ':' + date.getUTCSeconds() + ' ' +
date.getUTCFullYear() + ' UTC';
/* markup for a comment */
comment_div.innerHTML =
'<div class="midcol">\n' +
' <div class="arrow up' + (comment.direction == 'up' ? 'mod' : '') + '"></div>\n' +
' <div class="arrow down' + (comment.direction == 'down' ? 'mod' : '') + '"></div>\n' +
'</div>\n' +
'<div class="entry">\n' +
' <p class="tagline">\n' +
' <a href="/user/' + comment.author + '" class="author">' + comment.author + '</a>\n' +
' <time datetime="' + comment.time +'" title="' + date_str + '">' + time_ago(comment.time) + '</time>\n' +
' </p>\n' +
' <div class="usertext usertext-body">\n' +
' <div class="md">\n' +
' ' + comment.text + '\n' +
' </div>\n' +
' </div>\n' +
' <ul class="flat-list buttons">\n' +
' <li><a href="' + comment.link +'">permalink</a></li>\n' +
' <li><a href="' + comment.link +'?context=3">context</a></li>\n' +
' <li><a href="' + comment.link.substr(0, comment.link.lastIndexOf('/') + 1) +'">comments</a></li>\n' +
' <li><a href="#" class="remove" data-fullname="' + comment.id + '">remove</a></li>\n' +
' </ul>\n' +
'</div>\n'
;
comment_div.getElementsByClassName('remove')[0].addEventListener('click', function () {
remove_comment(this.dataset.fullname);
this.textContent = 'removed';
});
comment_div.classList.add('thing', 'comment', 'id-' + comment.id);
comment_div.style.setProperty('margin-bottom', '10px');
where.appendChild(comment_div);
}
function get_comment(comment_id) {
return JSON.parse(GM_getValue(comment_id));
}
function get_all_comments() {
/* convert JSON strings to objects */
return GM_listValues().map(function (comment_id) {
return get_comment(comment_id);
});
}
function save_comment(comment) {
GM_setValue(comment.id, JSON.stringify(comment));
}
function remove_comment(comment_id) {
GM_deleteValue(comment_id);
}
/* authored by TheBrain, at http://stackoverflow.com/a/12475270 */
function time_ago(time) {
switch (typeof time) {
case 'number': break;
case 'string': time = +new Date(time); break;
case 'object': if (time.constructor === Date) time = time.getTime(); break;
default: time = +new Date();
}
let time_formats = [
[ 60, 'seconds', 1], // 60
[ 120, '1 minute ago', '1 minute from now'], // 60*2
[ 3600, 'minutes', 60], // 60*60, 60
[ 7200, '1 hour ago', '1 hour from now'], // 60*60*2
[ 86400, 'hours', 3600], // 60*60*24, 60*60
[ 172800, '1 day ago', 'Tomorrow'], // 60*60*24*2
[ 604800, 'days', 86400], // 60*60*24*7, 60*60*24
[ 1209600, '1 week ago', 'Next week'], // 60*60*24*7*4*2
[ 2419200, 'weeks', 604800], // 60*60*24*7*4, 60*60*24*7
[ 4838400, '1 month ago', 'Next month'], // 60*60*24*7*4*2
[ 29030400, 'months', 2419200], // 60*60*24*7*4*12, 60*60*24*7*4
[ 58060800, '1 year ago', 'Next year'], // 60*60*24*7*4*12*2
[ 2903040000, 'years', 29030400], // 60*60*24*7*4*12*100, 60*60*24*7*4*12
];
let seconds = (+new Date() - time) / 1000;
if (seconds < 2) {
return 'just now';
}
let i = 0,
format;
while (format = time_formats[i++]) {
if (seconds < format[0]) {
if (typeof format[2] == 'string') {
return format[1];
}
else {
return Math.floor(seconds / format[2]) + ' ' + format[1] + ' ago';
}
}
}
return time;
}