4chan cap helper

hides posts that are not selected with the tickbox, for capping

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

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

(I already have a user script manager, let me install it!)

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.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @id             arch.413chan.net-580a3d1c-2425-453d-9c9f-1b9f1d6c0630@scriptish
// @name           4chan cap helper
// @version        4.03
var version = 4.03;
// anybody with half a brain will tell you that duplicated variables like this is bad. Tough shit.
// @namespace      
// @author         subby
// @description    hides posts that are not selected with the tickbox, for capping
// @include        *://boards.4chan.org/*/thread/*
// @grant          none
// @run-at         document-end
// ==/UserScript==
var despoilcount = 0;
function contains(a, obj) {
    for (var i = 0; i < a.length; i++) {
        if (a[i] === obj) {
            return true;
        }
    }
    return false;
}
function showPosts() {
    //unhide all posts
    var posts = [].slice.call(document.getElementsByClassName("replyContainer"));
    var op = [].slice.call(document.getElementsByClassName("opContainer"));
    for (var i = 0; i < posts.length; i++) {
       posts[i].hidden = false;
    }
    //we do both because one works in 4chanx and one works without.
    op[0].style.display = '';
    op[0].hidden = false;
    startbutton.setAttribute('value', 'Hide unchecked posts'); // What the enduser sees on button
    startbutton.onclick = function() {
        hidePosts();
        onClick();
    };
}
function hidePosts() {
    //get checkboxes
    //get the postcontainers
    //hide the post containers if their id isn't in a checked checkbox
    var postInfos = [].slice.call(document.getElementsByClassName("postInfo"));
    var savenums = ["pc1"];
    var posts = [].slice.call(document.getElementsByClassName("replyContainer"));
    var op = [].slice.call(document.getElementsByClassName("opContainer"));
    for (var i = 0; i < postInfos.length; i++) {
        if(postInfos[i].firstChild.checked) {
            //we do both because one works in 4chanx and one works without.
            postInfos[i].firstChild.checked = false;
            savenums.push("pc".concat(postInfos[i].firstChild.name));
        }
    }
    if(!contains(savenums,op[0].id)) {
       op[0].hidden = true;
       op[0].style.display = 'none';
    }
    for (var i = 0; i < posts.length; i++) {
        if(!contains(savenums,posts[i].id)) {
            posts[i].hidden = true;
        }
    }
    startbutton.setAttribute('value', 'Reveal hidden posts'); // What the enduser sees on button
    startbutton.onclick = function() {
        showPosts();
        onClick();
    };
}

function removeSpoilers() {
    var s = document.createElement("style");
    s.innerHTML = "s, s a:not(:hover) {background: none repeat scroll 0% 0% #000000 ! important;color: #ffffff ! important;text-decoration: none;} .spoiler {background: none repeat scroll 0% 0% #000000 ! important;color: #ffffff ! important;text-decoration: none;}";
    s.setAttribute("id", "despoilsheet" + despoilcount);
    document.getElementsByTagName("head")[0].appendChild(s);
    document.getElementById("styleSelector").setAttribute("onchange", "document.getElementById('despoilsheet" + despoilcount + "').disabled = true; setActiveStyleSheet(this.value);document.getElementById('despoilbutton').click(); return false;");
    despoilcount++;
    despoil.setAttribute('value', 'Hide spoilers'); // What the enduser sees on button
    despoil.onclick = function() {
        returnSpoilers();
        onClick();
    };
}

function returnSpoilers() {
    var s = document.createElement("style");
    s.innerHTML = "s, s a:not(:hover) {background: none repeat scroll 0% 0% #000000 ! important;color: #000000 ! important;text-decoration: none;} .spoiler {background: none repeat scroll 0% 0% #000000 ! important;color: #000000 ! important;text-decoration: none;}";
    s.setAttribute("id", "despoilsheet" + despoilcount);
    document.getElementsByTagName("head")[0].appendChild(s);
    document.getElementById("styleSelector").setAttribute("onchange", "document.getElementById('despoilsheet" + despoilcount + "').disabled = true; setActiveStyleSheet(this.value); return false;");
    despoilcount++;
    despoil.setAttribute('value', 'Show spoilers'); // What the enduser sees on button
    despoil.onclick = function() {
        removeSpoilers();
        onClick();
    };
}

function removeBacklinks() {
        var nodelist = document.getElementsByClassName("backlink-container");
        var backlinks = [];
        for (var i = 0; i < nodelist.length; ++i) {
            backlinks[i] = nodelist[i];
        }
        for (var i = 0; i < backlinks.length; ++i) {
            backlinks[i].hidden = true;
        }
    }
// find the bottom
var bottom = document.getElementsByClassName("absBotText").item(0);
bottom.innerHTML = bottom.innerHTML + '<br>4chan Cap Helper is running, Version: ' + version + ' You can always find the latest version of 4chan Cap helper at <a rel="nofollow" target="_top" href="https://sleazyfork.org/en/scripts/1207-4chan-cap-helper">sleazyfork.org</a><br>';
// init hideposts button
var startbutton = document.createElement('input');
startbutton.setAttribute('type', 'button');
startbutton.setAttribute('value', 'Hide unchecked posts'); // What the enduser sees on button
startbutton.setAttribute('name', 'gottagofast');
startbutton.onclick = function() {
    hidePosts();
    onClick();
};
bottom.appendChild(startbutton);
// init despoil button
var despoil = document.createElement('input');
despoil.setAttribute('id', 'despoilbutton');
despoil.setAttribute('type', 'button');
despoil.setAttribute('value', 'Show spoilers'); // What the enduser sees on button
despoil.setAttribute('name', 'despoiler');
despoil.onclick = function() {
    removeSpoilers();
    onClick();
};
bottom.appendChild(despoil);
// init remove backlinks button
var remBack = document.createElement('input');
remBack.setAttribute('type', 'button');
remBack.setAttribute('value', 'Remove Backlinks'); // What the enduser sees on button
remBack.setAttribute('name', 'rembacklinks');
remBack.onclick = function() {
    removeBacklinks();
    onClick();
};
bottom.appendChild(remBack);