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LinogeFly / Twitch Recommended For You Remover

// ==UserScript==
// @name         Twitch Recommended For You Remover
// @description  Removes "Recommended For You" section on twitch.tv web site on games directory page.
// @version      1.0.0
// @author       LinogeFly
// @include      http://*.twitch.tv/*
// @include      https://*.twitch.tv/*
// @grant        none
// @run-at       document-start
// @require      https://code.jquery.com/jquery-1.11.2.min.js
// ==/UserScript==

var allowedUrls = [
    '^https?://([a-zA-Z]+\.)?twitch.tv/directory/?$'
];

var domListener = (function () {
    var MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
    var observer = new MutationObserver(function (mutations) {
        // Don't process page if its URL is not allowed
        if (!isUrlAllowed(document.URL))
            return;
        
        hideRecommendedForYou();
    });
    
    function hideRecommendedForYou() {
        var $recGamesThumbs = $('#directory-list .js-recommended-games .js-games:visible');
        var $recGamesTitle = $('#directory-list .js-recommended-games .directory_header .title:visible');
        if (!$recGamesThumbs.length)
            return;
        
        stop();
        $recGamesThumbs.hide();
        $recGamesTitle.hide();
        start();
    }
    
    function isUrlAllowed(url) {
        return allowedUrls.some(function (item) {
            return (new RegExp(item)).test(decodeURIComponent(url));
        });
    }

    function start() {
        observer.observe(document.body, {
            childList: true,
            subtree: true
        });
    }

    function stop() {
        observer.disconnect();
    }

    return {
        start: start
    };
})();

$(document).ready(function () {
    // Run only in top frame
    if (window.top !== window.self) {
        return;
    }
    
    domListener.start();
});