XrInputSource[]inputSources 

List of active XrInputSource instances.

add 

Fired when new XrInputSource is added to the list.

app.xr.input.on('add', function (inputSource) {
    // new input source is added
});

Parameters

inputSource

XrInputSource

Input source that has been added.

remove 

Fired when XrInputSource is removed to the list.

app.xr.input.on('remove', function (inputSource) {
    // input source is removed
});

Parameters

inputSource

XrInputSource

Input source that has been removed.

select 

Fired when XrInputSource has triggered primary action. This could be pressing a trigger button, or touching a screen.

const ray = new pc.Ray();
app.xr.input.on('select', function (inputSource, evt) {
    ray.set(inputSource.getOrigin(), inputSource.getDirection());
    if (obj.intersectsRay(ray)) {
        // selected an object with input source
    }
});

Parameters

inputSource	XrInputSource	Input source that triggered select event.
evt	object	XRInputSourceEvent event data from WebXR API.

selectend 

Fired when XrInputSource has ended triggerring primary action.

Parameters

inputSource	XrInputSource	Input source that triggered selectend event.
evt	object	XRInputSourceEvent event data from WebXR API.

selectstart 

Fired when XrInputSource has started to trigger primary action.

Parameters

inputSource	XrInputSource	Input source that triggered selectstart event.
evt	object	XRInputSourceEvent event data from WebXR API.

squeeze 

Fired when XrInputSource has triggered squeeze action. This is associated with "grabbing" action on the controllers.

Parameters

inputSource	XrInputSource	Input source that triggered squeeze event.
evt	object	XRInputSourceEvent event data from WebXR API.

squeezeend 

Fired when XrInputSource has ended triggerring sqeeze action.

Parameters

inputSource	XrInputSource	Input source that triggered squeezeend event.
evt	object	XRInputSourceEvent event data from WebXR API.

squeezestart 

Fired when XrInputSource has started to trigger sqeeze action.

app.xr.input.on('squeezestart', function (inputSource, evt) {
    if (obj.containsPoint(inputSource.getPosition())) {
        // grabbed an object
    }
});

Parameters

inputSource	XrInputSource	Input source that triggered squeezestart event.
evt	object	XRInputSourceEvent event data from WebXR API.

fire(name, [arg1], [arg2], [arg3], [arg4], [arg5], [arg6], [arg7], [arg8]) 

Fire an event, all additional arguments are passed on to the event listener.

obj.fire('test', 'This is the message');

Parameters

name	string	Name of event to fire.
arg1	*	First argument that is passed to the event handler.
arg2	*	Second argument that is passed to the event handler.
arg3	*	Third argument that is passed to the event handler.
arg4	*	Fourth argument that is passed to the event handler.
arg5	*	Fifth argument that is passed to the event handler.
arg6	*	Sixth argument that is passed to the event handler.
arg7	*	Seventh argument that is passed to the event handler.
arg8	*	Eighth argument that is passed to the event handler.

Returns

EventHandler

Self for chaining.

hasEvent(name) 

Test if there are any handlers bound to an event name.

obj.on('test', function () { }); // bind an event to 'test'
obj.hasEvent('test'); // returns true
obj.hasEvent('hello'); // returns false

Parameters

name

string

The name of the event to test.

Returns

boolean

True if the object has handlers bound to the specified event name.

off([name], [callback], [scope]) 

Detach an event handler from an event. If callback is not provided then all callbacks are unbound from the event, if scope is not provided then all events with the callback will be unbound.

const handler = function () {
};
obj.on('test', handler);

obj.off(); // Removes all events
obj.off('test'); // Removes all events called 'test'
obj.off('test', handler); // Removes all handler functions, called 'test'
obj.off('test', handler, this); // Removes all handler functions, called 'test' with scope this

Parameters

name	string	Name of the event to unbind.
callback	HandleEventCallback	Function to be unbound.
scope	object	Scope that was used as the this when the event is fired.

Returns

EventHandler

Self for chaining.

on(name, callback, [scope]) 

Attach an event handler to an event.

obj.on('test', function (a, b) {
    console.log(a + b);
});
obj.fire('test', 1, 2); // prints 3 to the console

const evt = obj.on('test', function (a, b) {
    console.log(a + b);
});
// some time later
evt.off();

Parameters

name	string	Name of the event to bind the callback to.
callback	HandleEventCallback	Function that is called when event is fired. Note the callback is limited to 8 arguments.
scope	object	Object to use as 'this' when the event is fired, defaults to current this.

Returns

EventHandle

Can be used for removing event in the future.

once(name, callback, [scope]) 

Attach an event handler to an event. This handler will be removed after being fired once.

obj.once('test', function (a, b) {
    console.log(a + b);
});
obj.fire('test', 1, 2); // prints 3 to the console
obj.fire('test', 1, 2); // not going to get handled

Parameters

name	string	Name of the event to bind the callback to.
callback	HandleEventCallback	Function that is called when event is fired. Note the callback is limited to 8 arguments.
scope	object	Object to use as 'this' when the event is fired, defaults to current this.

Returns

EventHandle

• can be used for removing event in the future.