Element: hasPointerCapture() method
The hasPointerCapture()
method of the
Element
interface checks whether the element on which it is invoked has
pointer capture for the pointer identified by the given pointer ID.
Syntax
js
hasPointerCapture(pointerId)
Parameters
pointerId
-
The
pointerId
of aPointerEvent
object.
Return value
A boolean value — true
if the element does have pointer capture for the pointer identified by the given pointer ID, false
if it doesn't.
Examples
html
<html lang="en">
<script>
function downHandler(ev) {
const el = document.getElementById("target");
// Element 'target' will receive/capture further events
el.setPointerCapture(ev.pointerId);
// …
// Check whether element still has pointer capture
let pointerCap = el.hasPointerCapture(ev.pointerId);
if (pointerCap) {
// We've still got pointer capture
} else {
// oops, we've lost pointer capture!
}
}
function init() {
const el = document.getElementById("target");
el.onpointerdown = downHandler;
}
</script>
<body onload="init();">
<div id="target">Touch this element with a pointer.</div>
</body>
</html>
Specifications
Specification |
---|
Pointer Events # dom-element-haspointercapture |
Browser compatibility
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