Oct 14, 2025 · Oct 6, 2025 · Oct 6, 2025
diff --git a/client/packages/lowcoder/src/comps/comps/buttonComp/scannerComp.tsx b/client/packages/lowcoder/src/comps/comps/buttonComp/scannerComp.tsx
  useState,
  useContext,
 } from "react";
 import { arrayStringExposingStateControl } from "comps/controls/codeStateControl";
 import { arrayStringExposingStateControl, stringExposingStateControl } from "comps/controls/codeStateControl";
 import { BoolControl } from "comps/controls/boolControl";
 import { RefControl } from "comps/controls/refControl";
 import { EditorContext } from "comps/editorState";
 const ScannerTmpComp = (function () {
  const childrenMap = {
    data: arrayStringExposingStateControl("data"),
    value: stringExposingStateControl("value"),
    text: withDefault(StringControl, trans("scanner.text")),
    continuous: BoolControl,
    uniqueData: withDefault(BoolControl, true),
    }, [success, showModal]);

    const continuousValue = useRef<string[]>([]);
    const seenSetRef = useRef<Set<string>>(new Set());

    const handleUpdate = (err: any, result: any) => {
      if (result) {
        if (props.continuous) {
          continuousValue.current = [...continuousValue.current, result.text];
          const scannedText: string = result.text;
          if (props.uniqueData && seenSetRef.current.has(scannedText)) {
            return;
          }
          continuousValue.current = [...continuousValue.current, scannedText];
          if (props.uniqueData) {
            seenSetRef.current.add(scannedText);
          }
          const val = props.uniqueData
            ? [...new Set(continuousValue.current)]
            : continuousValue.current;
          props.value.onChange(scannedText);
          props.data.onChange(val);
          props.onEvent("success");
        } else {
          props.value.onChange(result.text);
          props.data.onChange([result.text]);
          setShowModal(false);
          setSuccess(true);
            props.onEvent("click");
            setShowModal(true);
            continuousValue.current = [];
            seenSetRef.current = new Set();
          }}
        >
          <span>{props.text}</span>

 export const ScannerComp = withExposingConfigs(ScannerTmpComp, [
  new NameConfig("data", trans("data")),
  new NameConfig("value", trans("value")),
  new NameConfig("text", trans("button.textDesc")),
  ...CommonNameConfig,
 ]);
Original file line number	Diff line number	Diff line change
Expand Up		@@ -30,7 +30,7 @@ import React, {
		useState,
		useContext,
		} from "react";
		import { arrayStringExposingStateControl } from "comps/controls/codeStateControl";
		import { arrayStringExposingStateControl, stringExposingStateControl } from "comps/controls/codeStateControl";
		import { BoolControl } from "comps/controls/boolControl";
		import { RefControl } from "comps/controls/refControl";
		import { EditorContext } from "comps/editorState";
Expand DownExpand Up		@@ -120,6 +120,7 @@ const BarcodeScannerComponent = React.lazy(
		const ScannerTmpComp = (function () {
		const childrenMap = {
		data: arrayStringExposingStateControl("data"),
		value: stringExposingStateControl("value"),
		text: withDefault(StringControl, trans("scanner.text")),
		continuous: BoolControl,
		uniqueData: withDefault(BoolControl, true),
Expand DownExpand Up		@@ -150,17 +151,27 @@ const ScannerTmpComp = (function () {
		}, [success, showModal]);

		const continuousValue = useRef<string[]>([]);
		const seenSetRef = useRef<Set<string>>(new Set());

		const handleUpdate = (err: any, result: any) => {
		if (result) {
		if (props.continuous) {
		continuousValue.current = [...continuousValue.current, result.text];
		const scannedText: string = result.text;
		if (props.uniqueData && seenSetRef.current.has(scannedText)) {
		return;
		}
		continuousValue.current = [...continuousValue.current, scannedText];
		if (props.uniqueData) {
		seenSetRef.current.add(scannedText);
		}
		const val = props.uniqueData
		? [...new Set(continuousValue.current)]
		: continuousValue.current;
		props.value.onChange(scannedText);
		props.data.onChange(val);
		props.onEvent("success");
		} else {
		props.value.onChange(result.text);
		props.data.onChange([result.text]);
		setShowModal(false);
		setSuccess(true);
Expand DownExpand Up		@@ -205,6 +216,7 @@ const ScannerTmpComp = (function () {
		props.onEvent("click");
		setShowModal(true);
		continuousValue.current = [];
		seenSetRef.current = new Set();
		}}
		>
		<span>{props.text}</span>
Expand DownExpand Up		@@ -317,6 +329,7 @@ const ScannerTmpComp = (function () {

		export const ScannerComp = withExposingConfigs(ScannerTmpComp, [
		new NameConfig("data", trans("data")),
		new NameConfig("value", trans("value")),
		new NameConfig("text", trans("button.textDesc")),
		...CommonNameConfig,
		]);