booru keybinds

Adds galllery page navigation keybinds to various booru sites
11.12.2025 itibariyledir. En son verisyonu görün.
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// ==UserScript==
// @name            booru keybinds
// @namespace       861ddd094884eac5bea7a3b12e074f34
// @version         2.1
// @description     Adds galllery page navigation keybinds to various booru sites
// @author          Anonymous
// @match           https://rule34.xxx/index.php?page=post&s=list&*
// @include         /^https:\/\/yande\.re\/post(\?page=[1-9]+)?([&?]tags=[^&]+)?/
// @include         /^https:\/\/rule34\.us\/index\.php\?r=posts(%2F|\/)index.*/
// @match           https://gelbooru.com/index.php?page=post&s=list&*
// @grant           none
// @license         MIT-0
// ==/UserScript==

(function() {
    'use strict';

    const PAGE_DOMAINS = ['yande.re', 'rule34.us'];
    const PID_DOMAINS = {'rule34.xxx': 42, 'gelbooru.com': 42};

    const PARAMS = new URLSearchParams(window.location.search);
    const DOMAIN = window.location.hostname;

    function detectPaginationType() {
        if (PARAMS.has('s') || DOMAIN in PID_DOMAINS) {
            return 'pid';
        } else if (PARAMS.has('page') || PAGE_DOMAINS.indexOf(DOMAIN) > -1) {
            return 'page';
        }
        return null;
    }

    function getCurrentPage() {
        const type = detectPaginationType();
        if (type === 'pid') {
            return parseInt(PARAMS.get('pid')) || 0;
        } else if (type === 'page') {
            return parseInt(PARAMS.get('page')) || 1;
        }
        return null;
    }

    function calculatePreviousPage(type, current, pageLength) {
        if (type === 'pid') {
            if (current > 0) {
                return Math.max(0, current - pageLength);
            }
        } else if (type === 'page') {
            if (current > 1) {
                return (current - 1);
            }
        }
        return null;
    }

    function calculateNextPage(type, current, pageLength) {
        if (type === 'pid') {
            return (current + pageLength);
        } else if (type === 'page') {
            return (current + 1);
        }
        return null;
    }

    function navigate(direction) {
        const type = detectPaginationType();
        const current = getCurrentPage();

        let pageLength;null
        if (type == 'pid') {
            pageLength = PID_DOMAINS[DOMAIN];
        } else if (type == 'page') {
            pageLength = PAGE_DOMAINS[DOMAIN];
        }

        let dest;
        if (direction == 'previous') {
            dest = calculatePreviousPage(type, current, pageLength);
        } else if (direction = 'next') {
            dest = calculateNextPage(type, current, pageLength);
        }
        if (dest == null) return false;

        if (type === 'pid') {
            PARAMS.set('pid', dest);
        } else if (type === 'page') {
            PARAMS.set('page', dest);
        } else {
            console.log('Keybind caught. Navigation failed!');
            console.debug(`direction=${direction}, type=${type}, current=${current}, pageLength=${pageLength}`);
            return false;
        }

        window.location.href = `${window.location.pathname}?${PARAMS.toString()}`;
    }

    // Only activate if pagination is detected
    const paginationType = detectPaginationType();
    if (!paginationType) {
        return false;
    }

    // Add keyboard event listener
    document.addEventListener('keydown', function(e) {
        // Ignore if user is typing in an input field
        if (
            e.target.tagName === 'INPUT'
            || e.target.tagName === 'TEXTAREA'
        ) return;

        switch(e.key) {
            case 'ArrowLeft':
                e.preventDefault();
                navigate('previous');
                break;
            case 'ArrowRight':
                e.preventDefault();
                navigate('next');
                break;
        }
    });

    console.log(`Keybinds loaded (${paginationType} mode). Use ← → arrow keys to navigate gallery pages.`);
})();