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pointer-lock.js
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60 lines (52 loc) · 2.29 KB
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// Apply PointerLock shims
(function () {
// Old API
if (typeof navigator === 'undefined' || typeof document === 'undefined') {
// Not running in a browser
return;
}
navigator.pointer = navigator.pointer || navigator.webkitPointer || navigator.mozPointer;
// Events
var pointerlockchange = function () {
var e = document.createEvent('CustomEvent');
e.initCustomEvent('pointerlockchange', true, false, null);
document.dispatchEvent(e);
};
var pointerlockerror = function () {
var e = document.createEvent('CustomEvent');
e.initCustomEvent('pointerlockerror', true, false, null);
document.dispatchEvent(e);
};
document.addEventListener('webkitpointerlockchange', pointerlockchange, false);
document.addEventListener('webkitpointerlocklost', pointerlockchange, false);
document.addEventListener('mozpointerlockchange', pointerlockchange, false);
document.addEventListener('mozpointerlocklost', pointerlockchange, false);
document.addEventListener('webkitpointerlockerror', pointerlockerror, false);
document.addEventListener('mozpointerlockerror', pointerlockerror, false);
// requestPointerLock
if (Element.prototype.mozRequestPointerLock) {
// FF requires a new function for some reason
Element.prototype.requestPointerLock = function () {
this.mozRequestPointerLock();
};
} else {
Element.prototype.requestPointerLock = Element.prototype.requestPointerLock || Element.prototype.webkitRequestPointerLock || Element.prototype.mozRequestPointerLock;
}
if (!Element.prototype.requestPointerLock && navigator.pointer) {
Element.prototype.requestPointerLock = function () {
var el = this;
document.pointerLockElement = el;
navigator.pointer.lock(el, pointerlockchange, pointerlockerror);
};
}
// exitPointerLock
document.exitPointerLock = document.exitPointerLock || document.webkitExitPointerLock || document.mozExitPointerLock;
if (!document.exitPointerLock) {
document.exitPointerLock = function () {
if (navigator.pointer) {
document.pointerLockElement = null;
navigator.pointer.unlock();
}
};
}
})();