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Automatically navigate to the next page when scrolling to the bottom of image gallery websites. Optimized for Hitomi and Pixiv.
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// ==UserScript==
// @name Gallery Scroll Navigator
// @namespace https://github.com/YukiteruDev
// @version 1.24
// @description Automatically navigate to the next page when scrolling to the bottom of image gallery websites. Optimized for Hitomi and Pixiv.
// @author Yukiteru
// @match https://hitomi.la/*
// @match https://www.pixiv.net/*
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_registerMenuCommand
// @grant GM_unregisterMenuCommand
// @grant GM_config
// @require https://greasyfork.org/scripts/470224-tampermonkey-config/code/Tampermonkey%20Config.js
// @license MIT
// ==/UserScript==
(function() {
'use strict';
function printLog(message) {
console.log(`[Scroll Pager]: ${message}`);
}
// Initialize the configuration
const config_desc = {
scrolls: {
name: "Number of Scrolls to Next Page",
processor: "int_range-1-10",
value: 4, // Default value
}
};
const config = new GM_config(config_desc);
let scrollCounter = 0;
let progressBar;
// Function to create the progress bar element
function createProgressBar() {
const bar = document.createElement('div');
bar.style.cssText = `
position: fixed;
bottom: 0;
left: 0;
right: 0;
height: 3px;
background-color: red;
z-index: 9999;
transform-origin: center;
transform: scaleX(0);
transition: transform 0.3s ease;
`;
document.body.appendChild(bar);
return bar;
}
const siteDict = {
hitomi: {
host: 'hitomi.la',
selector: '.page-container li:not(:has(a)) + li a'
},
pixiv: {
host: 'www.pixiv.net',
selector: 'nav > a:last-child'
},
};
function getCurrentSite() {
// Determine the current site based on host
return Object.values(siteDict).find(site => location.host === site.host);
}
function getCurrentPosition() {
return window.innerHeight + window.scrollY;
}
function loadNextPage() {
printLog('Loading next page...');
const site = getCurrentSite();
const pageButton = document.querySelector(site.selector);
pageButton.click();
}
function checkIsScrollingDown(event) {
if (event.wheelDelta) {
return event.wheelDelta < 0;
}
return event.deltaY > 0;
}
// Update the progress bar based on the current scroll count
function updateProgressBar(progress) {
const maxScrolls = config.get('scrolls'); // Number of scrolls to next page
const scale = Math.min(progress / maxScrolls, 1); // Calculate scale based on scrolls
progressBar.style.transform = `scaleX(${scale})`; // Apply scaling
}
// Initialize the progress bar when the page loads
progressBar = createProgressBar();
function resetScrollProgress() {
scrollCounter = 0; // Reset counter when scrolling
updateProgressBar(0); // Reset progress bar when scrolling starts
}
function checkIsBottom() {
return (window.innerHeight + window.scrollY).toFixed() >= document.body.offsetHeight;
}
function setWheelEvent() {
document.addEventListener("wheel", event => {
const isBottom = checkIsBottom();
const isScrollingDown = checkIsScrollingDown(event);
if (!isBottom || !isScrollingDown) return resetScrollProgress();
scrollCounter++;
updateProgressBar(scrollCounter);
printLog(scrollCounter);
const maxScrolls = config.get('scrolls'); // Number of scrolls to next page
if (scrollCounter >= maxScrolls) {
loadNextPage();
resetScrollProgress();
}
});
}
function checkPagination() {
const site = getCurrentSite();
if (!site) return;
const pager = document.querySelector(site.selector);
printLog(pager)
if (!pager) return;
printLog('Pager detected');
observer.disconnect();
setWheelEvent();
}
const observer = new MutationObserver(() => checkPagination());
observer.observe(document.body, { childList: true, subtree: true });
})();