Nexus Mods: Always Allow Mod Manager Download

downloadWithModManagerAlways.user.js

// ==UserScript==
// @name         Nexus Mods: Always Allow Mod Manager Download
// @namespace    http://tampermonkey.net/
// @version      1.1
// @description  Vortex might be problematic, but Mod Organizer 2 is not. This allows the "Mod Manager Download" button to always display, even if mod authors have flagged it as removed.
// @author       NullCascade
// @match        https://www.nexusmods.com/*
// @icon         https://www.nexusmods.com/favicon.ico
// @grant        none
// ==/UserScript==

/*--- waitForKeyElements():  A utility function, for Greasemonkey scripts,
    that detects and handles AJAXed content.
    Usage example:
        waitForKeyElements (
            "div.comments"
            , commentCallbackFunction
        );
        //--- Page-specific function to do what we want when the node is found.
        function commentCallbackFunction (jNode) {
            jNode.text ("This comment changed by waitForKeyElements().");
        }
    IMPORTANT: This function requires your script to have loaded jQuery.
*/

function waitForKeyElements (
    selectorTxt,    /* Required: The jQuery selector string that
                        specifies the desired element(s).
                    */
    actionFunction, /* Required: The code to run when elements are
                        found. It is passed a jNode to the matched
                        element.
                    */
    bWaitOnce,      /* Optional: If false, will continue to scan for
                        new elements even after the first match is
                        found.
                    */
    iframeSelector  /* Optional: If set, identifies the iframe to
                        search.
                    */
) {
    var targetNodes, btargetsFound;

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

    if (targetNodes  &&  targetNodes.length > 0) {
        btargetsFound   = true;
        /*--- Found target node(s).  Go through each and act if they
            are new.
        */
        targetNodes.each ( function () {
            var jThis        = $(this);
            var alreadyFound = jThis.data ('alreadyFound')  ||  false;

            if (!alreadyFound) {
                //--- Call the payload function.
                var cancelFound     = actionFunction (jThis);
                if (cancelFound)
                    btargetsFound   = false;
                else
                    jThis.data ('alreadyFound', true);
            }
        } );
    }
    else {
        btargetsFound   = false;
    }

    //--- Get the timer-control variable for this selector.
    var controlObj      = waitForKeyElements.controlObj  ||  {};
    var controlKey      = selectorTxt.replace (/[^\w]/g, "_");
    var timeControl     = controlObj [controlKey];

    //--- Now set or clear the timer as appropriate.
    if (btargetsFound  &&  bWaitOnce  &&  timeControl) {
        //--- The only condition where we need to clear the timer.
        clearInterval (timeControl);
        delete controlObj [controlKey]
    }
    else {
        //--- Set a timer, if needed.
        if ( ! timeControl) {
            timeControl = setInterval ( function () {
                    waitForKeyElements (    selectorTxt,
                                            actionFunction,
                                            bWaitOnce,
                                            iframeSelector
                                        );
                },
                300
            );
            controlObj [controlKey] = timeControl;
        }
    }
    waitForKeyElements.controlObj   = controlObj;
}

function addModManagerDownload(jNode) {
    var mod_files = jNode[0];
    var downloadContainers = mod_files.querySelectorAll(".accordion-downloads");
    for (var i = 0; i < downloadContainers.length; i++) {
        var downloadList = downloadContainers[i]
        if (downloadList.childElementCount != 1) {
            continue;
        }

        var manualDownloadBtn = downloadList.querySelector("li");

        // Add our new elements.
        downloadList.prepend(document.createElement("li"));
        var modManagerDownloadBtn = manualDownloadBtn.cloneNode(true);
        downloadList.prepend(modManagerDownloadBtn);

        // Change the link to use a mod manager.
        var modManagerDownloadBtnLink = modManagerDownloadBtn.querySelector("a");
        modManagerDownloadBtnLink.setAttribute("href", modManagerDownloadBtnLink.getAttribute("href") + "&nmm=1");

        // Update the text.
        modManagerDownloadBtnLink.querySelector(".flex-label").innerText = "Mod Manager Download";

        // Update the icon.
        var modManagerDownloadBtnLinkIcon = modManagerDownloadBtnLink.querySelector("svg");
        modManagerDownloadBtnLinkIcon.classList.remove("icon-manual");
        modManagerDownloadBtnLinkIcon.classList.add("icon-nmm");
        modManagerDownloadBtnLinkIcon.querySelector("use").setAttribute("xlink:href", "https://www.nexusmods.com/assets/images/icons/icons.svg#icon-nmm");
    }
}
waitForKeyElements("#mod_files", addModManagerDownload);

v1.1: Updates on switching Nexus tabs. Don't need to use the files link anymore.