If you scroll down and then close your browser, you lose your scrolling progress. This script adds one magical button, that remembers the position for you as bookmarkable link. Easily allowing you to continue where you left off.
// ==UserScript==
// @name 9gag remember position
// @description If you scroll down and then close your browser, you lose your scrolling progress. This script adds one magical button, that remembers the position for you as bookmarkable link. Easily allowing you to continue where you left off.
// @author Bladito
// @version 0.2.8
// @homepageURL https://greatest.deepsurf.us/en/users/55159-bladito
// @match *://9gag.com/*
// @namespace Bladito/9gag
// @require http://code.jquery.com/jquery-latest.js
// @grant GM_addStyle
// ==/UserScript==
(function($) {
'use strict';
detectAdditionInDOM($('.main-wrap').get(0), function(mutations) {
mutations.forEach(function(mutation) {
if (mutation.addedNodes && $(mutation.addedNodes.item(0)).hasClass('list-stream')) {
const allArticles = $('.list-stream').find('article[id]');
allArticles.each(function(index, article) {
if (index > 2) {
addRememberButton($(article), $(allArticles[index-1]), $(allArticles[index-2]), $(allArticles[index-3]));
}
});
}
});
});
function addRememberButton($target, prev1, prev2, prev3) {
const getId = (el) => el.attr('id').replace('jsid-post-', '');
const url = [location.protocol, '//', location.host, location.pathname].join('');
const params = '?id='+getId(prev1)+'%2C'+getId(prev2)+'%2C'+getId(prev3)+'&c=10';
$target.find('.share.right:not(:has(.b9g-remember-btn)) ul')
.prepend(`<li class="btn-vote"><a class="b9g-remember-btn" title="Remember position" href="${url+params}" rel="nofollow" onClick="setTimeout(()=>window.location.reload(true))"></a></li>`);
}
function detectAdditionInDOM(node, callback) {
var MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
if (node) {
if (MutationObserver) {
var obs = new MutationObserver(function(mutations, observer) {
if(mutations[0].addedNodes.length) {
callback(mutations);
}
});
obs.observe(node, { childList:true, subtree:true });
} else if (window.addEventListener) {
node.addEventListener('DOMNodeInserted', callback, false);
}
}
}
GM_addStyle('.b9g-remember-btn:after {' +
'position: absolute;' +
'content: " ";' +
'width: 30px;' +
'height: 30px;' +
'left: 50%;' +
'top: 50%;' +
'margin-top: -15px;' +
'margin-left: -15px;' +
'background: url(https://assets-9gag-fun.9cache.com/s/fab0aa49/a5edd735f6a943e46bc0ff39b700ae2a28d123de/static/dist/web6/img/sprite.png) -87px -12px no-repeat;' +
'background-size: 700px 220px;' +
'}');
})(window.jQuery);