Dynamic Cursor

A dynamic cursor thingy

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

You will need to install a user script manager extension to install this script.

(У мене вже є менеджер скриптів, дайте мені встановити його!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==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);
})();