A Simple Web Navigation Enhancer

You can quickly access the previous and next episodes, perform smooth scrolling up or down, and even enable or disable full-screen mode. This script is designed to enhance the reading experience of web content in a more convenient and customizable.

Versión del día 14/11/2025. Echa un vistazo a la versión más reciente.

Tendrás que instalar una extensión para tu navegador como Tampermonkey, Greasemonkey o Violentmonkey si quieres utilizar este script.

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

Necesitarás instalar una extensión como Tampermonkey o Violentmonkey para instalar este script.

Necesitarás instalar una extensión como Tampermonkey o Userscripts para instalar este script.

Necesitará instalar una extensión como Tampermonkey para instalar este script.

Necesitarás instalar una extensión para administrar scripts de usuario si quieres instalar este script.

(Ya tengo un administrador de scripts de usuario, déjame instalarlo)

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión como Stylus para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

Necesitará instalar una extensión del gestor de estilos de usuario para instalar este estilo.

(Ya tengo un administrador de estilos de usuario, déjame instalarlo)

// ==UserScript==
// @name         A Simple Web Navigation Enhancer
// @namespace    http://tampermonkey.net/
// @version      1.5.5
// @description  You can quickly access the previous and next episodes, perform smooth scrolling up or down, and even enable or disable full-screen mode. This script is designed to enhance the reading experience of web content in a more convenient and customizable.
// @match        https://westmanga.me/*
// @match        https://komikcast03.com/*
// @match        https://aquareader.net/*
// @match        https://www.webtoons.com/*
// @match        https://kiryuu03.com/*
// @match        https://mangaku.lat/*
// @match        https://manhwatop.com/*
// @match        https://komiku.org/*
// @match        https://www.mikoroku.com/*
// @match        https://mangadex.org/chapter/*
// @match        https://mangatoto.com/*
// @grant        none
// @require      https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    var isFullscreen = false;
    var activeElement;

    let scrollingUp = false; // Is "W" key held down?
    let scrollingDown = false; // Is "S" key held down?
    let momentumUp = 0; // Momentum for scrolling up
    let momentumDown = 0; // Momentum for scrolling down
    const maxMomentum = 80; // Maximum scroll speed
    const momentumDecay = 0.0; // Rate of momentum decay
    let scrollInterval; // Reference to the scroll loop

    const HOSTS = {
        'westmanga.me': {
            next: 'div.max-w-screen-xl:nth-child(2) > div:nth-child(2) > div:nth-child(1) > div:nth-child(2) > button:nth-child(2)',
            prev: 'div.max-w-screen-xl:nth-child(2) > div:nth-child(2) > div:nth-child(1) > div:nth-child(2) > button:nth-child(1)'
        },
        'komikcast03.com': {
            next: '.nextprev a[rel="next"]',
            prev: '.nextprev a[rel="prev"]'
        },
        'www.webtoons.com': {
      	    next: '.paginate .pg_next',
	          prev: '.paginate .pg_prev'
		    },
        'aquareader.net': {
            next: 'a.btn.next_page',
            prev: 'a.btn.prev_page'
        },
        'kiryuu03.com': {
            next: 'a.justify-center:nth-child(3)',
            prev: 'a.px-4:nth-child(1)'
        },
        'mangaku.lat': {
            prev: 'button.glho.glkp_1:-soup-contains("PREV")',
            next: 'button.glho.glkn_1:-soup-contains("NEXT")'
        },
        'manhwatop.com': {
            prev: '.prev_page',
            next: '.next_page'
        },
        'komiku.org': {
            prev: 'div.nxpr > a.rl:first-of-type',
            next: 'div.nxpr > a.rl:last-of-type'
        },
        'mangadex.org': {
            prev: '',
            next: ''
        },
        'mangatoto.com': {
            prev: 'a.btn.btn-sm.btn-outline.btn-primary:nth-of-type(1)',
            next: 'a.btn.btn-sm.btn-outline.btn-primary:nth-of-type(2)'
        },
        'www.mikoroku.com': {
            prev: 'a[rel="prev"][type="button"]',
            next: 'a[rel="next"][type="button"]'
        }
    };

    let btnNext, btnPrev;
    let host = window.location.host;
    if (HOSTS[host]) {
        btnNext = HOSTS[host].next;
        btnPrev = HOSTS[host].prev;
    }

    const zoomLevel = () => {
        return document.body.style.zoom || 1;
    }

    // Function to start scrolling (up or down)
    function startScrolling(direction) {
        if ((direction === "up" && !scrollingUp) || (direction === "down" && !scrollingDown)) {
            if (direction === "up") scrollingUp = true;
            if (direction === "down") scrollingDown = true;

            clearInterval(scrollInterval); // Clear any existing scroll loop

            // Momentum-based scrolling loop
            scrollInterval = setInterval(() => {
                // Increase momentum if scrolling in a direction
                if (scrollingUp) {
                    momentumUp = Math.min(momentumUp + 8, maxMomentum);
                } else {
                    momentumUp *= momentumDecay; // Decay momentum if "W" is released
                }

                if (scrollingDown) {
                    momentumDown = Math.min(momentumDown + 8, maxMomentum);
                } else {
                    momentumDown *= momentumDecay; // Decay momentum if "S" is released
                }

                // Stop the interval if both momentums are negligible
                if (momentumUp < 1 && momentumDown < 1) {
                    clearInterval(scrollInterval);
                    return;
                }

                // Perform the scroll action
                const netMomentum = momentumDown - momentumUp; // Net scrolling direction
                $('html, body').scrollTop($(window).scrollTop() + netMomentum);
            }, 30); // Adjust interval for smooth updates
        }
    }

    // Function to stop scrolling (up or down)
    function stopScrolling(direction) {
        if (direction === "up") scrollingUp = false;
        if (direction === "down") scrollingDown = false;
    }

    // Event listener for "keydown"
    $(document).on('keydown', function (e) {
        if ((e.key === "w" || e.key === "W") && !scrollingUp && !e.ctrlKey && !e.altKey && e.key !== 'Tab') {
			// Periksa elemen yang sedang dalam fokus
            activeElement = document.activeElement;
			if (!(activeElement && (activeElement.tagName === 'INPUT' || activeElement.tagName === 'TEXTAREA'))) {
                // Pengguna tidak sedang mengetik
				e.preventDefault(); // Prevent default behavior
				startScrolling("up"); // Start scrolling up
			}
        }
        if ((e.key === "s" || e.key === "S") && !scrollingDown && !e.ctrlKey && !e.altKey && e.key !== 'Tab') {
			// Periksa elemen yang sedang dalam fokus
            activeElement = document.activeElement;
			if (!(activeElement && (activeElement.tagName === 'INPUT' || activeElement.tagName === 'TEXTAREA'))) {
                // Pengguna tidak sedang mengetik
				e.preventDefault(); // Prevent default behavior
				startScrolling("down"); // Start scrolling down
			}
        }
    });

    // Event listener for "keyup"
    $(document).on('keyup', function (e) {
        if ((e.key === "w" || e.key === "W") && !e.ctrlKey && !e.altKey && e.key !== 'Tab') {
			// Periksa elemen yang sedang dalam fokus
            activeElement = document.activeElement;
			if (!(activeElement && (activeElement.tagName === 'INPUT' || activeElement.tagName === 'TEXTAREA'))) {
                // Pengguna tidak sedang mengetik
				e.preventDefault(); // Prevent default behavior
				stopScrolling("up"); // Stop scrolling up
			}
        }
        if ((e.key === "s" || e.key === "S") && !e.ctrlKey && !e.altKey && e.key !== 'Tab') {
			// Periksa elemen yang sedang dalam fokus
            activeElement = document.activeElement;
			if (!(activeElement && (activeElement.tagName === 'INPUT' || activeElement.tagName === 'TEXTAREA'))) {
                // Pengguna tidak sedang mengetik
				e.preventDefault(); // Prevent default behavior
				stopScrolling("down"); // Stop scrolling down
			}
        }
    });

    document.addEventListener('keydown', function(event) {
        if ((event.key === 'a' || event.key === 'A' || event.key === 'ArrowLeft') && !event.ctrlKey && !event.altKey && event.key !== 'Tab') {
            let prevButton = document.querySelector(btnPrev);
            if (prevButton) {
                // Periksa elemen yang sedang dalam fokus
                activeElement = document.activeElement;
                if (!(activeElement && (activeElement.tagName === 'INPUT' || activeElement.tagName === 'TEXTAREA'))) {
                // Pengguna tidak sedang mengetik
                    prevButton.click();
                }
            }
        } else if ((event.key === 'd' || event.key === 'D' || event.key === 'ArrowRight') && !event.ctrlKey && !event.altKey && event.key !== 'Tab') {
            let nextButton = document.querySelector(btnNext);
            if (nextButton) {
                // Periksa elemen yang sedang dalam fokus
                activeElement = document.activeElement;
                if (!(activeElement && (activeElement.tagName === 'INPUT' || activeElement.tagName === 'TEXTAREA'))) {
                    // Pengguna tidak sedang mengetik
                    nextButton.click();
                }
            }
        } else if ((event.key === 'f' || event.key === 'F') && !event.ctrlKey && !event.altKey && event.key !== 'Tab') {
            // Periksa elemen yang sedang dalam fokus
            activeElement = document.activeElement;
            if (!(activeElement && (activeElement.tagName === 'INPUT' || activeElement.tagName === 'TEXTAREA'))) {
                // Pengguna tidak sedang mengetik, masuk ke mode fullscreen
                event.preventDefault();
                toggleFullscreen(); // Fungsi Anda untuk masuk/keluar dari mode fullscreen
            }
        } else if ((event.key === 'q' || event.key === 'Q') && !event.ctrlKey && !event.altKey && event.key !== 'Tab') {
            var allChapterButton;
            if (window.location.host === 'westmanga.me') {
                allChapterButton = document.querySelector('.text-primary');
            } else if (window.location.host === 'www.webtoons.com') {
                allChapterButton = document.querySelector('.subj_info .subj');
            } else if (window.location.host === 'kiryuu03.com') {
		allChapterButton = document.querySelector('button.ring-offset-accent');
            } else if (window.location.host === 'komikcast03.com') {
                allChapterButton = document.querySelector('div.allc a');
            } else if (window.location.host === 'manhwatop.com') {
                allChapterButton = document.querySelector('ol.breadcrumb li:nth-child(2) a');
            } else if (window.location.host === 'www.mikoroku.com') {
                allChapterButton = document.querySelector('a[rel="home"][type="button"]');
            } else if (window.location.host === 'mangatoto.com') {
                allChapterButton = document.querySelector('h3.text-xl.font-bold.space-x-2 > a.link-pri.link-hover');
            } else if (window.location.host === 'aquareader.net') {
                allChapterButton = document.querySelector('.breadcrumb > li:nth-child(2) > a:nth-child(1)');
            } else if (window.location.host === 'komiku.org') {
                allChapterButton = document.querySelector('#Description > a:nth-child(3)');
            }
            if (allChapterButton) {
                // Periksa elemen yang sedang dalam fokus
                activeElement = document.activeElement;
                if (!(activeElement && (activeElement.tagName === 'INPUT' || activeElement.tagName === 'TEXTAREA'))) {
                    // Pengguna tidak sedang mengetik
                    allChapterButton.click();
                }
            }
        }
    });

    function toggleFullscreen() {
        if (!isFullscreen) {
            enterFullscreen();
        } else {
            exitFullscreen();
        }
        isFullscreen = !isFullscreen;
    }

    function enterFullscreen() {
        const elem = document.documentElement;
        if (elem.requestFullscreen) {
            elem.requestFullscreen();
        } else if (elem.mozRequestFullScreen) {
            elem.mozRequestFullScreen();
        } else if (elem.webkitRequestFullscreen) {
            elem.webkitRequestFullscreen();
        } else if (elem.msRequestFullscreen) {
            elem.msRequestFullscreen();
        }
    }

    function exitFullscreen() {
        if (document.exitFullscreen) {
            document.exitFullscreen();
        } else if (document.mozCancelFullScreen) {
            document.mozCancelFullScreen();
        } else if (document.webkitExitFullscreen) {
            document.webkitExitFullscreen();
        } else if (document.msExitFullscreen) {
            document.msExitFullscreen();
        }
    }
})();