XRInputSourcesChangeEvent - Web APIs 编辑

Secure context

This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The WebXR Device API interface XRInputSourcesChangeEvent is used to represent the inputsourceschange event sent to an XRSession when the set of available WebXR input controllers changes.

Constructor

XRInputSourcesChangeEvent()

Creates and returns a new XRInputSourcesChangeEvent object configured as indicated by the given XRInputSourcesChangeEventInit object. The specified type must be inputsourceschange, which is the only event that uses this interface.

Properties

added Read only

An array of zero or more XRInputSource objects, each representing an input device which has been newly connected or enabled for use.

removed Read only

An array of zero or more XRInputSource objects representing the input devices newly connected or enabled for use.

session Read only

The XRSession to which this input source change event is being directed.

Methods

While XRInputSourcesChangeEvent defines no methods of its own, it inherits methods from its parent interface, Event.

Event types

inputsourceschange

Delivered to the XRSession when the set of input devices available to it changes.

Examples

The following example shows how to set up an event handler which uses inputsourceschange events to detect newly-available pointing devices and to load their models in preparation to display them in the next animation frame.

xrSession.addEventListener("inputsourceschange", onInputSourcesChange);

function onInputSourcesChange(event) {
  for (let input of event.added) {
    if (input.targetRayMode == "tracked-pointer") {
      loadControllerMesh(input);
    }
  }
}

You can also add a handler for inputsourceschange events by setting the oninputsourceschange event handler:

xrSession.oninputsourceschange = onInputSourcesChange;

Specifications

Browser compatibility

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