Document: pointerLockElement property
The read-only pointerLockElement
property
of the Document
interface provides the
element set as the target for mouse events while the pointer is locked. It is
null
if lock is pending, pointer is unlocked, or the target is in another
document.
Value
An Element
or null
.
Examples
Checking pointer lock status
This example contains a <div>
element that in turn contains a <button>
. Clicking the button requests pointer lock for the <div>
.
The example also listens for the pointerlockchange
event: when this event is fired, the event handler disables the "Lock" button if an element in the document has the pointer lock, and enables the button otherwise.
The effect of this is that if you click the "Lock" button, the pointer is locked and the button is disabled: if you then exit pointer lock (for example, by pressing the Escape key), the button is enabled again.
HTML
html
<div id="container">
<button id="lock">Lock</button>
</div>
CSS
css
div {
height: 100px;
width: 200px;
border: 2px solid blue;
}
JavaScript
js
const lock = document.querySelector("#lock");
const container = document.querySelector("#container");
lock.addEventListener("click", () => {
container.requestPointerLock();
});
document.addEventListener("pointerlockchange", () => {
const locked = document.pointerLockElement;
lock.disabled = Boolean(locked);
});
Result
Specifications
Specification |
---|
Pointer Lock 2.0 # dom-documentorshadowroot-pointerlockelement |
Browser compatibility
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