Subscribe inputs for my orbit camera

Help & Support
1

I tried to subscribe inputs for my orbit camera but browser show this warning:

EventHandler: subscribing to an event ((deltaX, deltaY) => { console.log(“Drag Event:”, deltaX, deltaY); this.applyRotate(deltaX, deltaY); }) with missing arguments

var MouseInput = pc.createScript('mouseInput');

MouseInput.instance = null;

MouseInput.getInstance = function(app) {
    if (!MouseInput.instance) {
        var entity = new pc.Entity('MouseInputEntity');
        app.root.addChild(entity);
        MouseInput.instance = entity.addComponent('script').create('mouseInput');
    }
    return MouseInput.instance;
};

MouseInput.prototype.initialize = function() {
    // Initialize custom events
    this.onDrag = new pc.EventHandler();
    this.onPinch = new pc.EventHandler();

    MouseInput.instance = this;

    // Bind mouse events
    this.app.mouse.on(pc.EVENT_MOUSEMOVE, this.onMouseMove, this);
    this.app.mouse.on(pc.EVENT_MOUSEWHEEL, this.onMouseWheel, this);
};

MouseInput.prototype.onMouseMove = function(event) {
    // Check if the left mouse button is pressed
    if (!event.buttons[pc.MOUSEBUTTON_LEFT]) return;

    // Trigger OnDrag event with delta movement
    this.onDrag.fire(event.dx, event.dy);
};

MouseInput.prototype.onMouseWheel = function(event) {
    // Trigger OnPinch event with wheel delta
    this.onPinch.fire(event.wheel);
};

MouseInput.prototype.destroy = function() {
    if (MouseInput.instance === this) {
        MouseInput.instance = null;
    }

    // Unbind mouse events
    this.app.mouse.off(pc.EVENT_MOUSEMOVE, this.onMouseMove, this);
    this.app.mouse.off(pc.EVENT_MOUSEWHEEL, this.onMouseWheel, this);
};

Event Subscribe:

CameraOrbit.prototype.inputSetup = function () {
    // Mouse Input
    var mouseInput = MouseInput.getInstance(this.app);
    mouseInput.onDrag.on((deltaX, deltaY) => { console.log("Drag Event:", deltaX, deltaY); this.applyRotate(deltaX, deltaY); });
    mouseInput.onPinch.on((deltaDistance) => { this.applyDistance(deltaDistance); });

    // Touch Input
    var touchInput = TouchInput.getInstance(this.app);
    touchInput.onDrag.on((deltaX, deltaY) => { this.applyRotate(deltaX, deltaY); });
    touchInput.onPinch.on((deltaDistance) => { this.applyDistance(deltaDistance); });
};