Adds a button to Imgur.com that hides all non-mature image links on the page
// ==UserScript==
// @name Imgur: Hide non-mature content
// @namespace
// @description Adds a button to Imgur.com that hides all non-mature image links on the page
// @include http://imgur.com/
// @include http://imgur.com/new/*
// @include http://imgur.com/hot/*
// @include http://imgur.com/t/*
// @version 1
// @grant none
// @author drgonzo67
// ==/UserScript==
document.getElementById('tags-current-list').style.display="none";
var secondaryNavPanel = document.getElementById('secondary-nav');
//alert(secondaryNavPanel);
var newItem = document.createElement("a");
var newItemText = document.createTextNode("Hide non-mature content");
newItem.setAttribute('onclick', "hideNonMatureElements();");
newItem.appendChild(newItemText);
secondaryNavPanel.appendChild(newItem);
var scriptCode = '\
function hideNonMatureElements() {\n\
var cards = document.getElementsByClassName("cards");\n\
for (var i in cards) {\n\
var cardsHTML = cards[i].innerHTML;\n\
var pieces = cardsHTML.match(/div id=\\"(.+)\\" class/g);\n\
var imageIds = [];\n\
for (var j in pieces) {\n\
imageIds.push(pieces[j].split("\\"")[1]);\n\
}\n\
for (var j in imageIds) {\n\
var imageId = imageIds[j];\n\
if (document.getElementById(imageId).style.display==\"none\") continue;\n\
var imageUrl = "http://imgur.com/gallery/" + imageId;\n\
$.ajax({ url: imageUrl, async: false, success: function(data) {\n\
var isMature = /mature-indicator/.test(data);\n\
if (!isMature) {\n\
document.getElementById(imageId).style.display=\"none\";\n\
}\n\
}\n\
});\n\
}\n\
}\n\
}';
var s = document.createElement("script");
s.innerHTML = scriptCode;
document.head.appendChild(s);