Full virtual hardware keyboard emulator for games, apps, and virtual machines. Now uses DRAG-TO-OPEN/CLOSE: You MUST drag the ⌨️ toggle button and release it to open or close the keyboard (tapping does nothing). Includes iOS-safe dragging, key hold, WASD, arrows, F-keys, modifiers, sound, glow, and no text selection.
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// ==UserScript==
// @name Universal Game Keyboard — Mobile & Desktop Virtual Keyboard Emulator
// @namespace https://universal-game-keyboard
// @version 1.5.0
// @description Full virtual hardware keyboard emulator for games, apps, and virtual machines. Now uses DRAG-TO-OPEN/CLOSE: You MUST drag the ⌨️ toggle button and release it to open or close the keyboard (tapping does nothing). Includes iOS-safe dragging, key hold, WASD, arrows, F-keys, modifiers, sound, glow, and no text selection.
// @match *://*/*
// @grant none
// ==/UserScript==
(() => {
'use strict';
if (window.__USK_INSTALLED__) return;
window.__USK_INSTALLED__ = true;
// -------------------------------------------------------------
// GLOBAL CSS TO PREVENT TEXT SELECTION / CALLOUTS / HIGHLIGHT
// -------------------------------------------------------------
const style = document.createElement("style");
style.textContent = `
#usk-kb, #usk-kb * , #usk-toggle {
-webkit-user-select: none !important;
user-select: none !important;
-webkit-touch-callout: none !important;
touch-action: none !important;
}
`;
document.head.appendChild(style);
// UTILITIES
const make = (t, props = {}) => Object.assign(document.createElement(t), props);
const css = (el, rules) => Object.assign(el.style, rules);
// AUDIO CLICK
let audioCtx = null;
function playClick() {
try {
if (!audioCtx) audioCtx = new (window.AudioContext || window.webkitAudioContext)();
const o = audioCtx.createOscillator();
const g = audioCtx.createGain();
o.type = 'triangle';
o.frequency.value = 750;
g.gain.value = 0.06;
g.gain.exponentialRampToValueAtTime(0.0001, audioCtx.currentTime + 0.09);
o.connect(g); g.connect(audioCtx.destination);
o.start();
o.stop(audioCtx.currentTime + 0.09);
} catch(e){}
}
// ---------------------------------------------
// KEY DATABASE AND EVENT GENERATION
// ---------------------------------------------
const KEYDB = (() => {
const db = {};
const add = (key, code, keyCode, location=0) =>
db[key] = { key, code, keyCode, location };
for (let i=65; i<=90; i++) {
const ch = String.fromCharCode(i).toLowerCase();
add(ch, 'Key'+ch.toUpperCase(), i);
}
for (let i=0;i<=9;i++) add(String(i), "Digit"+i, 48+i);
const sym = {
'`':192,'-':189,'=':187,'[':219,']':221,'\\':220,
';':186,"'":222,',':188,'.':190,'/':191
};
for (const k in sym) add(k, "", sym[k]);
add('Space','Space',32);
add('Enter','Enter',13);
add('Tab','Tab',9);
add('Backspace','Backspace',8);
add('Escape','Escape',27);
add('Delete','Delete',46);
add('ArrowLeft','ArrowLeft',37);
add('ArrowUp','ArrowUp',38);
add('ArrowRight','ArrowRight',39);
add('ArrowDown','ArrowDown',40);
for (let i=1;i<=12;i++) add("F"+i, "F"+i, 111+i);
add('Shift','ShiftLeft',16);
add('Control','ControlLeft',17);
add('Ctrl','ControlLeft',17);
add('Alt','AltLeft',18);
add('Meta','MetaLeft',91);
return db;
})();
const SHIFT_MAP = {
'`':'~','1':'!','2':'@','3':'#','4':'$','5':'%','6':'^','7':'&','8':'*','9':'(','0':')',
'-':'_','=':'+','[':'{',']':'}','\\':'|',';':':',"'":'"',',':'<','.':'>','/':'?'
};
// CREATE KEYBOARD EVENTS SAFE
function makeKeyboardEvent(type, opts={}) {
const ev = new KeyboardEvent(type, {
key: opts.key || "",
code: opts.code || "",
keyCode: opts.keyCode || 0,
which: opts.which || opts.keyCode || 0,
location: opts.location || 0,
ctrlKey: !!opts.ctrlKey,
shiftKey: !!opts.shiftKey,
altKey: !!opts.altKey,
metaKey: !!opts.metaKey,
bubbles: true,
cancelable: true,
composed: true
});
try { Object.defineProperty(ev, "keyCode", { get:() => opts.keyCode }) } catch(e){}
try { Object.defineProperty(ev, "which", { get:() => opts.keyCode }) } catch(e){}
return ev;
}
function dispatchToTargets(ev) {
const targets = [];
if (document.activeElement) targets.push(document.activeElement);
const mid = document.elementFromPoint(innerWidth/2, innerHeight/2);
if (mid && !targets.includes(mid)) targets.push(mid);
if (!targets.includes(document)) targets.push(document);
if (!targets.includes(window)) targets.push(window);
for (const t of targets) {
try { t.dispatchEvent(ev); } catch(e){}
}
}
const modifierState = { Shift:false, Control:false, Alt:false, Meta:false, Caps:false };
function normalize(label) {
if (label === 'Space') return ' ';
if (label === 'Esc') return 'Escape';
if (label === 'Back') return 'Backspace';
if (label === 'Left') return 'ArrowLeft';
if (label === 'Right') return 'ArrowRight';
if (label === 'Up') return 'ArrowUp';
if (label === 'Down') return 'ArrowDown';
if (label === 'Caps') return 'CapsLock';
return label;
}
function getKeyInfo(label, withShift=false) {
label = String(label);
if (label.length === 1) {
const lower = label.toLowerCase();
if (KEYDB[lower]) {
const d = KEYDB[lower];
let key = d.key;
if (/[a-z]/i.test(label)) {
if (withShift || modifierState.Caps) key = label.toUpperCase();
else key = label.toLowerCase();
} else {
if (withShift && SHIFT_MAP[label]) key = SHIFT_MAP[label];
else key = label;
}
return { key, code:d.code, keyCode:d.keyCode, location:d.location, isPrintable:true };
}
return { key:label, code:"Unknown", keyCode:label.charCodeAt(0), location:0, isPrintable:true };
}
const norm = normalize(label);
const d = KEYDB[label] || KEYDB[norm] || KEYDB[label.toUpperCase()];
if (d)
return { key:d.key, code:d.code, keyCode:d.keyCode, location:d.location, isPrintable:false };
return { key:norm, code:norm, keyCode:0, location:0, isPrintable:false };
}
function simulateKeyPress(label, opts={}) {
const useShift = opts.shift || modifierState.Shift;
const info = getKeyInfo(label, useShift);
const lower = label.toLowerCase();
if (['shift','control','ctrl','alt','meta','caps','capslock'].includes(lower)) {
const keyName = (lower==='ctrl'?'Control': lower==='caps'?'Caps': lower.charAt(0).toUpperCase()+lower.slice(1));
modifierState[keyName] = !modifierState[keyName];
highlightModifier(label, modifierState[keyName]);
return;
}
const key = info.key;
const code = info.code;
const keyCode = info.keyCode;
const loc = info.location;
const down = makeKeyboardEvent("keydown", {
key, code, keyCode, which:keyCode, location:loc,
ctrlKey:modifierState.Control,
shiftKey:modifierState.Shift,
altKey:modifierState.Alt,
metaKey:modifierState.Meta
});
dispatchToTargets(down);
if (info.isPrintable) {
const press = makeKeyboardEvent("keypress", {
key,
code,
keyCode:key.charCodeAt(0) || keyCode,
which: key.charCodeAt(0) || keyCode,
location:loc,
ctrlKey:modifierState.Control,
shiftKey:modifierState.Shift,
altKey:modifierState.Alt,
metaKey:modifierState.Meta
});
dispatchToTargets(press);
}
const up = makeKeyboardEvent("keyup", {
key, code, keyCode, which:keyCode, location:loc,
ctrlKey:modifierState.Control,
shiftKey:modifierState.Shift,
altKey:modifierState.Alt,
metaKey:modifierState.Meta
});
if (opts.holdFor) setTimeout(()=>dispatchToTargets(up), opts.holdFor);
else dispatchToTargets(up);
}
// ----------------------------------------------------------
// KEYBOARD UI BUILD
// ----------------------------------------------------------
const UI_LAYOUT = [
['Esc','F1','F2','F3','F4','F5','F6','F7','F8','F9','F10','F11','F12','Del'],
['`','1','2','3','4','5','6','7','8','9','0','-','=','Backspace'],
['Tab','q','w','e','r','t','y','u','i','o','p','[',']','\\'],
['Caps','a','s','d','f','g','h','j','k','l',';',"'",'Enter'],
['Shift','z','x','c','v','b','n','m',',','.','/','Shift'],
['Ctrl','Alt','Meta','Space','Left','Down','Up','Right']
];
const kb = make("div", { id:"usk-kb" });
css(kb, {
position:"fixed",
left:"50%",
bottom:"12px",
transform:"translateX(-50%)",
background:"rgba(12,12,12,0.96)",
padding:"10px",
borderRadius:"10px",
border:"1px solid rgba(255,255,255,0.06)",
display:"none",
zIndex:2147483646,
color:"#fff",
fontFamily:"system-ui,Segoe UI,Roboto,Arial",
boxShadow:"0 6px 30px rgba(0,0,0,0.6)",
touchAction:"none"
});
document.body.appendChild(kb);
const keyStyle = {
display:"inline-flex",
alignItems:"center",
justifyContent:"center",
background:"#333",
color:"#fff",
padding:"8px 10px",
margin:"3px",
borderRadius:"6px",
minWidth:"36px",
cursor:"pointer",
userSelect:"none",
boxSizing:"border-box",
transition:"box-shadow 0.06s, transform 0.06s"
};
function makeKey(label) {
const k = make("div",{className:"usk-key",textContent:label});
css(k,keyStyle);
if (label==="Space") css(k,{minWidth:"240px"});
if (["Enter","Shift","Caps","Tab"].includes(label)) css(k,{minWidth:"64px"});
if (label==="Backspace") css(k,{minWidth:"72px"});
k.dataset.keyLabel = label;
return k;
}
UI_LAYOUT.forEach(row=>{
const r = make("div");
css(r,{display:"flex",justifyContent:"center",marginBottom:"4px",alignItems:"center"});
row.forEach(label=>r.appendChild(makeKey(label)));
kb.appendChild(r);
});
// ----------------------------------------------------------
// TOGGLE BUTTON — DRAG TO OPEN/CLOSE ONLY
// ----------------------------------------------------------
const toggle = make("div", { id:"usk-toggle", textContent:"⌨️" });
css(toggle, {
position:"fixed",
top:"12px",
right:"12px",
width:"48px",
height:"48px",
display:"flex",
alignItems:"center",
justifyContent:"center",
fontSize:"22px",
background:"rgba(0,0,0,0.68)",
color:"#fff",
borderRadius:"10px",
zIndex:2147483647,
cursor:"grab",
boxShadow:"0 6px 18px rgba(0,0,0,0.45)",
touchAction:"none"
});
document.body.appendChild(toggle);
let dragStartX = null;
let dragStartY = null;
let dragging = false;
toggle.addEventListener("pointerdown", (ev)=>{
ev.preventDefault();
dragStartX = ev.clientX;
dragStartY = ev.clientY;
toggle.setPointerCapture(ev.pointerId);
dragging = false;
});
toggle.addEventListener("pointermove", (ev)=>{
if (dragStartX == null) return;
const dx = ev.clientX - dragStartX;
const dy = ev.clientY - dragStartY;
if (!dragging && (Math.abs(dx) > 4 || Math.abs(dy) > 4)) {
dragging = true;
}
if (dragging) {
toggle.style.left = `${ev.clientX - 24}px`;
toggle.style.top = `${ev.clientY - 24}px`;
toggle.style.right = "auto";
toggle.style.bottom = "auto";
}
});
toggle.addEventListener("pointerup", () => {
if (dragging) {
if (kb.style.display === "none") {
kb.style.display = "block";
toggle.style.boxShadow = "0 8px 30px rgba(0,170,255,0.25)";
} else {
kb.style.display = "none";
toggle.style.boxShadow = "0 6px 18px rgba(0,0,0,0.45)";
}
}
dragStartX = dragStartY = null;
dragging = false;
});
// ----------------------------------------------------------
// KEY PRESS / HOLD
// ----------------------------------------------------------
function flashKey(el) {
el.style.boxShadow = "0 0 14px 3px rgba(0,170,255,0.85)";
el.style.transform = "translateY(1px)";
setTimeout(()=>{
el.style.boxShadow="";
el.style.transform="";
},120);
}
function highlightModifier(label, on) {
const l = label.toLowerCase();
document.querySelectorAll(".usk-key").forEach(k=>{
const kl = k.dataset.keyLabel.toLowerCase();
if ((l==="shift" && kl==="shift") ||
(l==="ctrl" && (kl==="ctrl"||kl==="control")) ||
(l==="control" && (kl==="ctrl"||kl==="control")) ||
(l==="alt" && kl==="alt") ||
(l==="meta" && kl==="meta") ||
(l==="caps" && kl==="caps")) {
if (on) {
k.style.background="#0b6";
k.style.color="#001";
k.style.boxShadow="0 0 10px 2px rgba(11,204,119,0.25)";
} else {
k.style.background="#333";
k.style.color="#fff";
k.style.boxShadow="";
}
}
});
}
const activeRepeat = new Map();
function startPress(label, el) {
simulateKeyPress(label);
flashKey(el);
playClick();
const repeatDelay = 400;
const repeatInterval = 55;
let timeoutId = setTimeout(()=>{
let intervalId = setInterval(()=>{
simulateKeyPress(label);
flashKey(el);
playClick();
}, repeatInterval);
activeRepeat.set(el, intervalId);
}, repeatDelay);
activeRepeat.set(el, timeoutId);
}
function stopPress(el) {
const id = activeRepeat.get(el);
if (!id) return;
clearTimeout(id);
clearInterval(id);
activeRepeat.delete(el);
}
// LISTENERS
document.querySelectorAll(".usk-key").forEach(el=>{
el.addEventListener("pointerdown", (ev)=>{
ev.preventDefault();
ev.stopPropagation();
startPress(el.dataset.keyLabel, el);
});
["pointerup","pointercancel","pointerleave"].forEach(evt=>{
el.addEventListener(evt, (ev)=>{
ev.preventDefault();
stopPress(el);
});
});
});
// DRAG KEYBOARD BODY
(function draggable(el) {
let draggin = false, ox=0, oy=0;
el.addEventListener("pointerdown", ev=>{
if (ev.target.closest(".usk-key")) return;
draggin = true;
ox = ev.clientX - el.offsetLeft;
oy = ev.clientY - el.offsetTop;
el.setPointerCapture(ev.pointerId);
});
document.addEventListener("pointermove", ev=>{
if (!draggin) return;
css(el,{ left:`${ev.clientX-ox}px`, top:`${ev.clientY-oy}px`, transform:"none" });
});
document.addEventListener("pointerup", ()=> draggin=false);
})(kb);
console.info("Universal Game Keyboard loaded with DRAG-TO-OPEN/CLOSE enabled.");
})();