perch-kitchen-no-means-no.user.js

// ==UserScript==
// @name         Perch Kitchen - No Means No
// @namespace    salembeats
// @version      1.61
// @description  .
// @author       Cuyler Stuwe (salembeats)
// @include      https://www.mturkcontent.com/dynamic/hit?*
// ==/UserScript==

const GIDS = [
    "305NBF6GLTENU5EKFS5DSMB0VVBDRL", // Kitchen
    "3BG0QG8YP9VPQS8JULA7YQY5PSPCSG" // Backyards
];

const VALUE_FOR_LIKE_ITEMS = "no_photos";

const inputStates = {
    newer: [...document.querySelectorAll("input")].map(inp => inp.checked),
    older: []
};

function store() {
    inputStates.older = [...inputStates.newer];
    inputStates.newer = [...document.querySelectorAll("input")].map(inp => inp.checked);
}

function rewind() {
    const allInputs = [...document.querySelectorAll("input")];
    inputStates.older.forEach((state, idx) => {
        allInputs[idx].checked = state;
    });
}

(function main() {

    const gidFromUrl = (document.referrer.match(/worker\.mturk\.com\/projects\/([^/]*)/) || ["", ""])[1];
    if(!GIDS.includes(gidFromUrl)) { return; }

    document.body.addEventListener("change", e => {
        store();
    });

    document.body.addEventListener("click", e => {
        const {target} = e;

        if(target.value && target.value === VALUE_FOR_LIKE_ITEMS) {
            [...document.querySelectorAll(`[value='${VALUE_FOR_LIKE_ITEMS}']`)].forEach(el => el.checked = true);
            [...document.querySelectorAll(`input[type='checkbox']:not([value^='no_'])`)].forEach(el => el.checked = false);
        }
    });

    document.body.addEventListener("keyup", e => {
        if(e.key.toLowerCase() === "z") {
            rewind();
        }
    });

})();