nh Navigation Improvements

Clone search page navigation on top for mobile and options for faster tag filtering in top bar
Versão de: 22/06/2023. Veja: a última versão.
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// ==UserScript==
// @name        nh Navigation Improvements
// @description Clone search page navigation on top for mobile and options for faster tag filtering in top bar
// @namespace   xspeed.net
// @license     MIT
// @version     1
// @icon        https://nhentai.net/favicon.ico
// @match       *://nhentai.net/*
// @grant       none
// ==/UserScript==

"use strict";

async function showTextPrompt(msg) {
    const text = document.createElement("p");
    text.innerText = msg;

    const input = document.createElement("input");
    input.type = "search";

    const link = document.createElement("i");
    link.className = "fa fa-paste";

    const button = document.createElement("button");
    button.className = "btn btn-primary btn-square";
    button.type = "submit";
    button.appendChild(link);

    const form = document.createElement("form");
    form.className = "search";
    form.role = "search";
    form.method = "dialog";
    form.appendChild(input);
    form.appendChild(button);

    const dialog = document.createElement("dialog");
    dialog.appendChild(text);
    dialog.appendChild(form);

    const style = getComputedStyle(document.body);
    dialog.style.backgroundColor = style.getPropertyValue("background-color");
    dialog.style.color = style.getPropertyValue("color");

    document.body.appendChild(dialog);
    dialog.showModal();

    return new Promise((resolve, reject) => form.addEventListener('submit', () => {
        resolve(input.value);
        dialog.remove();
    }, { once: true }));
}

async function onBlockClick(event, tags) {
    event.stopImmediatePropagation();
    event.preventDefault();

    const input = document.querySelector("input[type=search]");
    const str = tags ?? await showTextPrompt("Specify tags, separate by commas");

    if (str) {
        str.split(',').map(x => x.trim()).filter(x => x).forEach(x => input.value += " -tag:" + x);

        const btn = document.querySelector("button[type=submit]");
        btn.click();
    }
}

function setupBtn(elem) {
    var item = elem.firstChild.cloneNode(true);

    var link = item.firstChild;
    link.href = "#";
    link.innerText = "Block default";
    link.addEventListener("click", e => onBlockClick(e, "bbm,netorare,vore,scat,guro"));

    elem.insertBefore(item, elem.firstChild);

    item = elem.firstChild.cloneNode(true);

    link = item.firstChild;
    link.href = "#";
    link.innerText = "Block tags";
    link.addEventListener("click", onBlockClick);

    elem.insertBefore(item, elem.firstChild);
}

const content = document.getElementById("content");
const pagination = document.querySelector("section.pagination");
const input = document.querySelector("input[type=search]");

if (content && pagination) {
    const clone = pagination.cloneNode(true);

    const spacer = clone.querySelector(".ios-mobile-webkit-bottom-spacing");
    if (spacer) spacer.remove();

    content.insertBefore(clone, content.firstChild);
}

if (!input.value) {
    input.value = "English ";
}

setupBtn(document.querySelector("ul.menu"));
setupBtn(document.querySelector("ul.dropdown-menu"));