c-plusplus.net Alternating Post Backgrounds

try to take over the world!
Ekde 2018/08/09. Vidu La ĝisdata versio.
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// ==UserScript==
// @name         c-plusplus.net Alternating Post Backgrounds
// @namespace    http://tampermonkey.net/
// @version      0.4
// @description  try to take over the world!
// @author       Swordfishx86
// @include      https://www.c-plusplus.net/*
// @include      http://www.c-plusplus.net/*
// @require      http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
// @grant        GM_addStyle
// ==/UserScript==

var background_colors = [ "#f2f2f2", "#f9f9f9" ];

function beautify(object, index)
{
    object.style.padding = "15px 10px 15px 10px"; // top right bottom left
    object.style.margin = "18px 0px 18px 0px";
    object.style.backgroundColor = background_colors[index % 2];
}

function posts_beautifier(selector, jNode) {
    var x = document.querySelectorAll("div.post-bar > hr");
    for (var i = 0; i < x.length; ++i) {
        x[i].style.display = "none";
    }

    x = document.querySelectorAll("blockquote");
    for (i = 0; i < x.length; ++i) {
        x[i].style.borderLeft = "5px solid #c9c9c9";
    }

    x = document.querySelectorAll(selector);
    for (i = 0; i < x.length; ++i) {
        beautify(x[i], i);
        var lines = x[i].querySelectorAll("hr");
        lines[lines.length - 1].style.display = "none";
    }
}

function generic_beautifier(selector, jNode)
{
    var x = document.querySelectorAll(selector);
    for (var i = 0; i < x.length; ++i) {
        beautify(x[i], i);
    }
}

function waitForKeyElements(selectorTxt, actionFunction, bWaitOnce, iframeSelector)
{
    var targetNodes, btargetsFound;

    if (typeof iframeSelector == "undefined") {
        targetNodes = $(selectorTxt);
    } else {
        targetNodes = $(iframeSelector).contents().find (selectorTxt);
    }

    if (targetNodes && targetNodes.length > 0) {
        btargetsFound = true;
        targetNodes.each ( function () {
            var jThis = $(this);
            var alreadyFound = jThis.data ('alreadyFound') || false;

            if (!alreadyFound) {
                var cancelFound = actionFunction (jThis);
                if (cancelFound) {
                    btargetsFound = false;
                } else {
                    jThis.data ('alreadyFound', true);
                }
            }
        } );
    }
    else {
        btargetsFound = false;
    }

    var controlObj = waitForKeyElements.controlObj || {};
    var controlKey = selectorTxt.replace (/[^\w]/g, "_");
    var timeControl = controlObj [controlKey];

    if (btargetsFound && bWaitOnce && timeControl) {
        clearInterval (timeControl);
        delete controlObj [controlKey]
    }
    else {
        if ( ! timeControl) {
            timeControl = setInterval(function(){waitForKeyElements(selectorTxt, actionFunction, bWaitOnce, iframeSelector);}, 300);
            controlObj [controlKey] = timeControl;
        }
    }
    waitForKeyElements.controlObj = controlObj;
}

var selectors = [
    "#content > div.row > div.topic.col-lg-12 > ul > li",
    "#content > div.row > div.category.col-lg-12 > ul > li",
    "#content > div.row > div.col-lg-12 > ul > li",
    "#content > div.row > div.category.col-lg-12 > div.subcategory > ul > li",
    "#content > div.recent > div.category > ul > li",
    "#content > div.popular > div.category > ul > li",
    "#content > div.unread > div.category > ul > li"
];

waitForKeyElements( selectors[0], posts_beautifier.bind(null, selectors[0]), false);
for(var i = 1; i < selectors.length; ++i) {
    waitForKeyElements (selectors[i], generic_beautifier.bind(null, selectors[i]), false);
}