JJB FB filter

Remove annoying crap from FB

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name     JJB FB filter
// @version  1
// @grant    none
// @description  Remove annoying crap from FB
// @author       Jeremy Bornstein <[email protected]>
// @match        https://*.facebook.com/*
// @grant        none
// @namespace https://greasyfork.org/users/414927
// ==/UserScript==

(function() {
    'use strict';

    const debug = true;

    function removeMatchingNodes(parent, selector, predicate, findParent, debugBGColor, debugTextColor, removeIt) {
        const nodes = parent.querySelectorAll(selector);
        for (let i = 0; i < nodes.length; i++) {
            const node = nodes[i];
            if (predicate(node)) {
                const offendingNode = findParent(node);
                if (debugBGColor && debugTextColor) {
                  	console.debug("found", node);
                    offendingNode.style.backgroundColor = debugBGColor;
                    offendingNode.style.color = debugTextColor;
                    console.debug("TARGET", offendingNode);
                }
              	if (removeIt) {
                    //offendingNode.parentNode.removeChild(offendingNode);
                    offendingNode.hidden = true;
                    offendingNode.style.display = "none";
                }
            }
        }
    }

    function removeAds(parent) {
        function isTargetNode(n) {
            const nodeText = n.innerText;
            return nodeText == "Sponsorisé"
                || nodeText == "Sponsored"
                || nodeText == "Promoted"
        }
        removeMatchingNodes(parent, 'h3 div', isTargetNode, n => n.parentElement.parentElement.parentElement.parentElement.parentElement.parentElement.parentElement.parentElement, null, null, true);
    }

    removeAds(document);

    const observer = new MutationObserver(function(mutationsList, observer) {
        for(let mutation of mutationsList) {
            if (mutation.type === 'childList') {
                const addedNodes = mutation.addedNodes;
                for (let node of addedNodes) {
                    removeLikedBy(node);
                    removeFollowedBy(node);
                    removeAds(node);
                    removeTrendAds(node);  // trends are only loaded once (and always dynamically) so theoretically we could disable this after it finds any once.
                }
            }
        }
    });
    observer.observe(document.body, { childList: true, subtree: true });

})();