Element.hasPointerCapture()
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
targetElement.hasPointerCapture(pointerId);
Parameters
pointerId
-
The
pointerId
of aPointerEvent
object.
Return value
A boolean value — true
if the element does have pointer
capture, false
if it doesn't.
Examples
<html>
<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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