Dynamic Cursor

A dynamic cursor thingy

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

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Userscripts per installare questo script.

Dovrai installare un'estensione come ad esempio Tampermonkey per installare questo script.

Dovrai installare un gestore di script utente per installare questo script.

(Ho già un gestore di script utente, lasciamelo installare!)

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Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

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Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

(Ho già un gestore di stile utente, lasciamelo installare!)

// ==UserScript==
// @name         Dynamic Cursor
// @namespace    http://tampermonkey.net/
// @version      2026-01-20
// @description  A dynamic cursor thingy
// @author       pooiod7
// @include      *
// @grant GM_registerMenuCommand
// @grant GM_setValue
// @grant GM_getValue
// ==/UserScript==

// const s1332=document.createElement("style");
// s1332.textContent="button{transition:filter .5s}button:hover{filter:invert(1)}";
// document.head.appendChild(s1332);

(function() {
    if (window.DCurLoaded == true) return;
    window.DCurLoaded = true;

    var SETTINGS = {
        BASE_SIZE: { key: "size", def: "5", type: "number" },
        BASE_OPACITY: { key: "PointerOpacity", def: "0.9", type: "number" },
        OUTLINE_OPACITY: { key: "OutlineOpacity", def: "1", type: "number" },
        SELECT_OPACITY: { key: "SelectOpacity", def: "0.2", type: "number" },
        MOSTLY_OUTLINE: { key: "ForceOutline", def: false, type: "bool" },
        TEXT_CURSOR_WIDTH: { key: "TextPointerWidth", def: "2", type: "number" },
        OUTLINE_THICKNESS: { key: "OutlineThickness", def: "2", type: "number" },
        IGNORE_SITES: { key: "IgnoreSites", def: "example.com, studio.penguinmod.com, turbowarp.org", type: "text" }
    };

    var VALUES = {};
    Object.keys(SETTINGS).forEach(k => {
        VALUES[k] = GM_getValue(SETTINGS[k].key, SETTINGS[k].def);
    });

    var {
        BASE_SIZE,
        BASE_OPACITY,
        OUTLINE_OPACITY,
        SELECT_OPACITY,
        MOSTLY_OUTLINE,
        TEXT_CURSOR_WIDTH,
        OUTLINE_THICKNESS,
        IGNORE_SITES
    } = VALUES;

    Object.keys(SETTINGS).forEach(k => {
        let s = SETTINGS[k];
        let v = VALUES[k];
        GM_registerMenuCommand(`${k}: ${v}`, () => {
            let nv;
            if (s.type === "bool") {
                nv = confirm(`${k}: OK=true, Cancel=false`);
            } else {
                nv = prompt(`Set ${k}:`, v);
                if (nv === null) return;
                if (s.type === "number") nv = String(nv);
            }
            GM_setValue(s.key, nv);
            window.location.reload();
        });
    });

    var IGNORE_JSON = IGNORE_SITES.split(",").map(s => s.trim()).filter(Boolean);

    var IS_IGNORED = IGNORE_JSON.some(d => location.hostname === d || location.hostname.endsWith("." + d));
    if (IS_IGNORED) return;

    const Z_INDEX = '2147483647';
    var SMOOTH_DURATION = 200;

    const CLICKABLE_SELECTORS = 'a, button, input, textarea, select, details, [role="button"], [role="link"], g[id^="part-"]';
    const TEXT_INPUT_TYPES = ['text', 'password', 'email', 'number', 'search', 'tel', 'url', 'date', 'datetime-local', 'month', 'week', 'time'];

    const globalStyle = document.createElement('style');
    globalStyle.textContent = `*, html, body { cursor: none !important; }`;
    document.head.appendChild(globalStyle);

    const host = document.createElement('div');
    Object.assign(host.style, {
        position: 'fixed', top: '0', left: '0', width: '0', height: '0',
        zIndex: Z_INDEX, pointerEvents: 'none'
    });
    document.body.appendChild(host);

    const shadow = host.attachShadow({ mode: 'open' });

    const shadowStyle = document.createElement('style');
    shadowStyle.textContent = `
        .cursor {
            position: fixed; top: 0; left: 0;
            width: ${BASE_SIZE}px; height: ${BASE_SIZE}px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            backdrop-filter: invert(1);
            -webkit-backdrop-filter: invert(1);
            opacity: ${BASE_OPACITY};
            pointer-events: none;
            transform: translate3d(-50%, -50%, 0);
            box-sizing: border-box;
            will-change: transform, width, height, border-radius, padding;
            transition:
                width 0.2s cubic-bezier(0.25, 0.8, 0.25, 1),
                height 0.2s cubic-bezier(0.25, 0.8, 0.25, 1),
                border-radius 0.2s cubic-bezier(0.25, 0.8, 0.25, 1),
                opacity 0.2s ease,
                padding 0.2s ease,
                background-color 0.2s ease;
            -webkit-mask: none;
            mask: none;
        }
        .cursor.smooth-pos {
            transition:
                width 0.2s cubic-bezier(0.25, 0.8, 0.25, 1),
                height 0.2s cubic-bezier(0.25, 0.8, 0.25, 1),
                border-radius 0.2s cubic-bezier(0.25, 0.8, 0.25, 1),
                transform 0.2s cubic-bezier(0.25, 0.8, 0.25, 1),
                opacity 0.2s ease,
                padding 0.2s ease,
                background-color 0.2s ease;
        }
        .cursor.outline-mode {
            background-color: rgba(255, 255, 255, 0.5);
            padding: ${OUTLINE_THICKNESS}px;
            -webkit-mask: linear-gradient(#fff, #fff) content-box, linear-gradient(#fff, #fff);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
        }
        .cursor.text-mode {
            border-radius: 0 !important;
            background-color: rgba(255, 255, 255, 0.5);
        }
        .cursor.hidden { opacity: 0 !important; }
    `;
    shadow.appendChild(shadowStyle);

    const cursor = document.createElement('div');
    cursor.classList.add('cursor');
    shadow.appendChild(cursor);

    let mouseX = -100, mouseY = -100;
    let currentMode = 'idle';
    let smoothRemoveTimer = null;
    let freezeCursor = false;
    let freezeTarget = null;

    const isSVGWithImage = (el) => {
        if (el.tagName.toLowerCase() === 'svg') return !!el.querySelector('image');
        return false;
    };

    const hasImage = (el) => {
        if (el.tagName.toLowerCase() === 'img') return true;
        if (isSVGWithImage(el)) return true;
        if (el.querySelector('svg') && isSVGWithImage(el.querySelector('svg'))) return true;
        if (el.querySelector('img')) return true;
        const style = window.getComputedStyle(el);
        if (style.backgroundImage !== 'none' && style.backgroundImage.includes('url')) return true;
        return false;
    };

    const getTextLineHeight = (el) => {
        const style = window.getComputedStyle(el);
        const lh = parseFloat(style.lineHeight);
        const fs = parseFloat(style.fontSize);
        return isNaN(lh) ? fs * 1.2 : lh;
    };

    const getClickable = (target) => {
        const el = target.closest(CLICKABLE_SELECTORS);
        if (el) return el;
        let traverse = target;
        while (traverse && traverse !== document.body) {
            const style = window.getComputedStyle(traverse);
            if (style.cursor === 'pointer') return traverse;
            traverse = traverse.parentElement;
        }
        return null;
    };

    const isTextBox = (el) => {
        const tag = el.tagName;
        if (tag === 'TEXTAREA') return true;
        if (tag === 'INPUT') {
            const type = el.getAttribute('type') || 'text';
            return TEXT_INPUT_TYPES.includes(type.toLowerCase());
        }
        return false;
    };

    document.addEventListener('mousemove', (e) => {
        mouseX = e.clientX;
        mouseY = e.clientY;
    });

    document.addEventListener('mousedown', (e) => {
        const target = e.target.closest(CLICKABLE_SELECTORS);
        if (target) {
            freezeCursor = target.classList.contains('freeze-cursor');
            freezeTarget = freezeCursor ? target : null;
        }
    });

    document.addEventListener('mouseup', () => {
        freezeCursor = false;
        freezeTarget = null;
    });

    document.addEventListener('mouseleave', () => cursor.classList.add('hidden'));
    document.addEventListener('mouseenter', () => cursor.classList.remove('hidden'));

    function update() {
        let currentX = mouseX;
        let currentY = mouseY;

        if (freezeCursor && freezeTarget) {
            const rect = freezeTarget.getBoundingClientRect();
            currentX = rect.left + rect.width / 2;
            currentY = rect.top + rect.height / 2;
        }

        const elUnderPoint = document.elementFromPoint(currentX, currentY);
        const target = elUnderPoint ? getClickable(elUnderPoint) : null;

        let targetX = currentX;
        let targetY = currentY;
        let targetW = BASE_SIZE;
        let targetH = BASE_SIZE;
        let targetR = '50%';
        let mode = 'idle';
        let isOutline = false;

        if (target) {
            cursor.style.opacity = SELECT_OPACITY;
            const rect = target.getBoundingClientRect();
            const style = window.getComputedStyle(target);

            if (isTextBox(target)) {
                cursor.style.opacity = BASE_OPACITY;
                mode = 'text';
                targetW = TEXT_CURSOR_WIDTH;
                targetH = getTextLineHeight(target);
                targetR = '0px';
                targetX = currentX;
                targetY = currentY;
            } else {
                mode = 'snap';
                targetW = rect.width;
                targetH = rect.height;
                const cssR = parseFloat(style.borderRadius) || 0;
                targetR = Math.max(cssR, 2) + 'px';
                targetX = rect.left + (rect.width / 2);
                targetY = rect.top + (rect.height / 2);
                if (hasImage(target)) isOutline = true;
                if (MOSTLY_OUTLINE && !target.classList.contains('freeze-cursor')) isOutline = true;
                if (isOutline) cursor.style.opacity = OUTLINE_OPACITY;
            }
        } else {
            cursor.style.opacity = BASE_OPACITY;
        }

        if (mode === 'snap') {
            cursor.classList.add('smooth-pos');
            clearTimeout(smoothRemoveTimer);
            smoothRemoveTimer = null;
        } else if (currentMode === 'snap' && mode !== 'snap') {
            cursor.classList.add('smooth-pos');
            if (!smoothRemoveTimer) {
                smoothRemoveTimer = setTimeout(() => {
                    cursor.classList.remove('smooth-pos');
                    smoothRemoveTimer = null;
                }, SMOOTH_DURATION);
            }
        } else if (mode === 'text') {
            cursor.classList.remove('smooth-pos');
            clearTimeout(smoothRemoveTimer);
            smoothRemoveTimer = null;
        }

        if (mode === 'text') {
            cursor.classList.add('text-mode');
            cursor.classList.remove('outline-mode');
        } else {
            cursor.classList.remove('text-mode');
            if (isOutline) cursor.classList.add('outline-mode');
            else cursor.classList.remove('outline-mode');
        }

        cursor.style.width = `${targetW}px`;
        cursor.style.height = `${targetH}px`;
        cursor.style.borderRadius = targetR;
        cursor.style.transform = `translate3d(${targetX}px, ${targetY}px, 0) translate(-50%, -50%)`;

        currentMode = mode;
        requestAnimationFrame(update);
    }

    requestAnimationFrame(update);
})();