@open-tender/store/dist/esm/hooks/useBarcodeUSB.js

A library of hooks, reducers, utility functions, and types for use with Open Tender applications that utilize our in-store POS API

import { __awaiter, __generator } from "tslib";
import { useCallback, useEffect, useRef, useState } from 'react';
var SCAN_MAX_TIME_DIFF = 100;
var useBarcodeUSB = function (listener) {
    var barcodeArray = useRef([]);
    var _a = useState(false), setCodeScanned = _a[1];
    var _b = useState(null), error = _b[0], setError = _b[1];
    var timer = useRef(undefined);
    var updateBarcode = function (data) {
        barcodeArray.current.push(data.pressedKey);
        clearTimeout(timer === null || timer === void 0 ? void 0 : timer.current);
        timer.current = setTimeout(function () { return setCodeScanned(function (prev) { return !prev; }); }, SCAN_MAX_TIME_DIFF);
    };
    var cancel = useCallback(function () { return __awaiter(void 0, void 0, void 0, function () {
        return __generator(this, function (_a) {
            listener.cancel(function () { return clearTimeout(timer === null || timer === void 0 ? void 0 : timer.current); });
            return [2 /*return*/];
        });
    }); }, [listener]);
    var reset = useCallback(function () { return __awaiter(void 0, void 0, void 0, function () {
        return __generator(this, function (_a) {
            cancel();
            barcodeArray.current = [];
            setCodeScanned(false);
            setError(null);
            return [2 /*return*/];
        });
    }); }, [cancel]);
    useEffect(function () {
        return function () {
            reset();
        };
    }, [reset]);
    var read = function () { return __awaiter(void 0, void 0, void 0, function () {
        return __generator(this, function (_a) {
            listener.read(updateBarcode);
            return [2 /*return*/];
        });
    }); };
    return {
        code: barcodeArray.current.length > 0
            ? barcodeArray.current.join('').trim()
            : null,
        read: read,
        cancel: cancel,
        reset: reset,
        error: error
    };
};
export default useBarcodeUSB;