监听识别

dist/index.d.ts

@@ -274,6 +274,10 @@ interface ScanListenerInfo {
    * 监听级别
    */
   level?: number;
+  /**
+   * 为 true 时仅接收同 key 主动扫码（startScan/scanImage 等）的结果，忽略扫码枪
+   */
+  selfKeyOnly?: boolean;
   /**
    * 监听回调
    */
@@ -333,8 +337,9 @@ interface IScan {
    * @param key 监听key
    * @param match 监听匹配
    * @param level 监听级别
+   * @param selfKeyOnly 为 true 时仅接收同 key 主动扫码结果，忽略扫码枪
    */
-  onScanListener(callback: ScanResultCallback, key: string, match?: string, level?: number): ScanListenerInfo;
+  onScanListener(callback: ScanResultCallback, key: string, match?: string, level?: number, selfKeyOnly?: boolean): ScanListenerInfo;
   /**
    * 取消监听扫码结果
    * @param callback 监听回调，或监听key

src/services/provider/scan.js

@@ -139,8 +139,20 @@ function parseBarcodeString(input) {
   }
 }
 
+function __needsHardwareScanner() {
+  if (_embed_scan_host_enabled) {
+    return true;
+  }
+  for (let i = 0; i < _scan_listener_list.length; i++) {
+    if (!_scan_listener_list[i].selfKeyOnly) {
+      return true;
+    }
+  }
+  return false;
+}
+
 function __checkScanner() {
-  if (_scan_listener_list.length > 0 || _embed_scan_host_enabled) {
+  if (__needsHardwareScanner()) {
     startScanner((result) => {
       result = parseBarcodeString(result);
       __scannerResult(result, { source: "scanner", skipBeep: true });
@@ -174,8 +186,15 @@ function __resolveScanKey(meta) {
   return _scan_session_key;
 }
 
-function __listenerMatches(item, result, scanKey) {
-  if (scanKey && item.key !== scanKey) {
+function __listenerMatches(item, result, scanKey, meta) {
+  if (item.selfKeyOnly) {
+    if (meta && meta.source === "scanner") {
+      return false;
+    }
+    if (!scanKey || item.key !== scanKey) {
+      return false;
+    }
+  } else if (scanKey && item.key !== scanKey) {
     return false;
   }
   return __match(result, item.match);
@@ -212,7 +231,7 @@ function __result(result, meta) {
   let matched = false;
   for (let i = 0; i < _scan_listener_list.length; i++) {
     const item = _scan_listener_list[i];
-    if (item.listener && __listenerMatches(item, result, scanKey)) {
+    if (item.listener && __listenerMatches(item, result, scanKey, meta)) {
       matched = true;
       item.listener({ result, key: item.key });
       break;
@@ -294,7 +313,7 @@ function __hasMatchedListener(result, meta) {
   const scanKey = __resolveScanKey(meta);
   for (let i = 0; i < _scan_listener_list.length; i++) {
     const item = _scan_listener_list[i];
-    if (item.listener && __listenerMatches(item, result, scanKey)) {
+    if (item.listener && __listenerMatches(item, result, scanKey, meta)) {
       return true;
     }
   }
@@ -572,7 +591,7 @@ export function clear() {
   __checkScanner();
 }
 
-export function onScanListener(listener, key, match, level) {
+export function onScanListener(listener, key, match, level, selfKeyOnly) {
   if (!key || typeof key !== 'string') {
     return;
   }
@@ -591,11 +610,13 @@ export function onScanListener(listener, key, match, level) {
     item.level = level;
     item.match = match;
     item.listener = listener;
+    item.selfKeyOnly = selfKeyOnly === true;
   } else {
     item = {
       key,
       match: match || "",
       level: level || 0,
+      selfKeyOnly: selfKeyOnly === true,
       listener: listener,
       cancel: () => {
         const index = _scan_listener_list.indexOf(item);

types/index.d.ts

@@ -274,6 +274,10 @@ interface ScanListenerInfo {
    * 监听级别
    */
   level?: number;
+  /**
+   * 为 true 时仅接收同 key 主动扫码（startScan/scanImage 等）的结果，忽略扫码枪
+   */
+  selfKeyOnly?: boolean;
   /**
    * 监听回调
    */
@@ -333,8 +337,9 @@ interface IScan {
    * @param key 监听key
    * @param match 监听匹配
    * @param level 监听级别
+   * @param selfKeyOnly 为 true 时仅接收同 key 主动扫码结果，忽略扫码枪
    */
-  onScanListener(callback: ScanResultCallback, key: string, match?: string, level?: number): ScanListenerInfo;
+  onScanListener(callback: ScanResultCallback, key: string, match?: string, level?: number, selfKeyOnly?: boolean): ScanListenerInfo;
   /**
    * 取消监听扫码结果
    * @param callback 监听回调，或监听key