@babylonjs/core/DeviceInput/nativeDeviceInputSystem.js

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import { DeviceEventFactory } from "./eventFactory.js";
import { DeviceType } from "./InputDevices/deviceEnums.js";
/** @internal */
export class NativeDeviceInputSystem {
    constructor(onDeviceConnected, onDeviceDisconnected, onInputChanged) {
        this._nativeInput = _native.DeviceInputSystem
            ? new _native.DeviceInputSystem(onDeviceConnected, onDeviceDisconnected, (deviceType, deviceSlot, inputIndex, currentState) => {
                const evt = DeviceEventFactory.CreateDeviceEvent(deviceType, deviceSlot, inputIndex, currentState, this);
                onInputChanged(deviceType, deviceSlot, evt);
            })
            : this._createDummyNativeInput();
    }
    // Public functions
    /**
     * Checks for current device input value, given an id and input index. Throws exception if requested device not initialized.
     * @param deviceType Enum specifying device type
     * @param deviceSlot "Slot" or index that device is referenced in
     * @param inputIndex Id of input to be checked
     * @returns Current value of input
     */
    pollInput(deviceType, deviceSlot, inputIndex) {
        return this._nativeInput.pollInput(deviceType, deviceSlot, inputIndex);
    }
    /**
     * Check for a specific device in the DeviceInputSystem
     * @param deviceType Type of device to check for
     * @returns bool with status of device's existence
     */
    isDeviceAvailable(deviceType) {
        //TODO: FIx native side first
        return deviceType === DeviceType.Mouse || deviceType === DeviceType.Touch;
    }
    /**
     * Dispose of all the observables
     */
    dispose() {
        this._nativeInput.dispose();
    }
    /**
     * For versions of BabylonNative that don't have the NativeInput plugin initialized, create a dummy version
     * @returns Object with dummy functions
     */
    _createDummyNativeInput() {
        const nativeInput = {
            pollInput: () => {
                return 0;
            },
            isDeviceAvailable: () => {
                return false;
            },
            dispose: () => { },
        };
        return nativeInput;
    }
}
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