fix

src/_export.js

@@ -14,6 +14,7 @@ import {
   dispatchEmbedScanResult,
   acknowledgeEmbedScanConsumed,
   dispatchEmbedScanError,
+  setEmbedScanHostEnabled,
 } from "./services/provider/scan";
 import {
   setEmbedScanResultForwarder,
@@ -139,7 +140,7 @@ function broadcastScanErrorToEmbedChildren(error) {
   });
 }
 
-function broadcastScanResultToEmbedChildren(result) {
+function broadcastScanResultToEmbedChildren(result, meta) {
   if (embedChildSources.size === 0 || result == null || result === "") {
     return;
   }
@@ -151,6 +152,7 @@ function broadcastScanResultToEmbedChildren(result) {
           v: EMBED_V,
           kind: "forwardScanResult",
           result,
+          scanSource: meta && meta.source,
         },
         "*"
       );
@@ -217,7 +219,9 @@ function embedChildOnMessage(ev) {
   }
   if (data.kind === "forwardScanResult") {
     if (typeof data.result === "string") {
-      const consumed = dispatchEmbedScanResult(data.result);
+      const consumed = dispatchEmbedScanResult(data.result, {
+        source: data.scanSource,
+      });
       if (consumed && resolveUseParentProxy()) {
         window.parent.postMessage(
           {
@@ -349,6 +353,7 @@ export function installEmbedHost(lib) {
   embedHostInstalled = true;
   setEmbedScanResultForwarder(broadcastScanResultToEmbedChildren);
   setEmbedScanErrorForwarder(broadcastScanErrorToEmbedChildren);
+  setEmbedScanHostEnabled(true);
   window.addEventListener("message", (ev) => {
     const data = ev.data;
     if (!isEmbedMessage(data)) {

src/services/embedScanBridge.js

@@ -11,9 +11,9 @@ export function setEmbedScanErrorForwarder(fn) {
   embedScanErrorForwarder = typeof fn === "function" ? fn : null;
 }
 
-export function forwardEmbedScanResultIfNeeded(result) {
+export function forwardEmbedScanResultIfNeeded(result, meta) {
   if (embedScanResultForwarder && result != null && result !== "") {
-    embedScanResultForwarder(result);
+    embedScanResultForwarder(result, meta);
   }
 }
 

src/services/provider/scan.js

@@ -27,6 +27,7 @@ let _scan_error_listener_list = [];
 let _scan_resolve = null;
 let _scan_closing = false;
 let _scan_next_start_time = 0;
+let _embed_scan_host_enabled = false;
 
 const SCAN_RESTART_DELAY = 500;
 const BRIDGE_SCAN_TIMEOUT = 5000;
@@ -134,10 +135,10 @@ function parseBarcodeString(input) {
 }
 
 function __checkScanner() {
-  if (_scan_listener_list.length > 0) {
+  if (_scan_listener_list.length > 0 || _embed_scan_host_enabled) {
     startScanner((result) => {
       result = parseBarcodeString(result);
-      __scannerResult(result);
+      __scannerResult(result, { source: "scanner", skipBeep: true });
     });
   } else {
     stopScanner();
@@ -155,10 +156,17 @@ function __match(result, match) {
   return true;
 }
 
+function __shouldSkipBeep(meta) {
+  if (meta && meta.skipBeep) {
+    return true;
+  }
+  const source = meta && meta.source;
+  return source === "scanner" || source === "bridge" || source === "wx";
+}
 
-function __result(result) {
+function __result(result, meta) {
   result = parseBarcodeString(result);
-  forwardEmbedScanResultIfNeeded(result);
+  forwardEmbedScanResultIfNeeded(result, meta);
   let matched = false;
   for (let i = 0; i < _scan_listener_list.length; i++) {
     const item = _scan_listener_list[i];
@@ -169,7 +177,9 @@ function __result(result) {
     }
   }
   if (matched) {
+    if (!__shouldSkipBeep(meta)) {
       playScanBeep();
+    }
     _scan_next_start_time = Date.now() + getScanRestartDelay();
   }
   return matched;
@@ -289,10 +299,10 @@ function __stopCurrentScan() {
  * 父页通过 postMessage 将识别结果投递到嵌入 iframe 时调用（与本地扫码枪/监听同一链路）。
  * @returns {boolean} 是否有监听消费了该结果
  */
-export function dispatchEmbedScanResult(raw) {
+export function dispatchEmbedScanResult(raw, meta) {
   const result =
     typeof raw === "string" ? parseBarcodeString(raw) : raw;
-  return __scannerResult(result);
+  return __scannerResult(result, meta);
 }
 
 /**
@@ -324,9 +334,9 @@ export function acknowledgeEmbedScanConsumed(raw) {
   resolve && resolve({ result });
 }
 
-function __scannerResult(result) {
+function __scannerResult(result, meta) {
   if (!__hasMatchedListener(result)) {
-    return __result(result);
+    return __result(result, meta);
   }
   if (isScanning()) {
     const resolve = __finishScan();
@@ -336,13 +346,13 @@ function __scannerResult(result) {
         _scan_closing = false;
       }, 0);
     });
-    const matched = __result(result);
+    const matched = __result(result, meta);
     resolve && resolve({
       result
     });
     return matched;
   }
-  return __result(result);
+  return __result(result, meta);
 }
 
 function __startBridgeScan() {
@@ -355,7 +365,7 @@ function __startBridgeScan() {
     if (!resp || !resp.result) {
       return resp;
     }
-    if (__result(resp.result)) {
+    if (__result(resp.result, { source: "bridge" })) {
       return resp;
     }
     if (isScanning()) {
@@ -369,7 +379,7 @@ function __startBridgeScan() {
     if (!err || !err.result) {
       throw err;
     }
-    if (__result(err.result)) {
+    if (__result(err.result, { source: "bridge" })) {
       return err;
     }
     if (isScanning()) {
@@ -393,7 +403,7 @@ function __startWxScan() {
     if (!resp || !resp.result) {
       return resp;
     }
-    if (__result(resp.result)) {
+    if (__result(resp.result, { source: "wx" })) {
       return resp;
     }
     return resp;
@@ -402,7 +412,7 @@ function __startWxScan() {
       throw err;
     }
     if (err && err.result) {
-      if (__result(err.result)) {
+      if (__result(err.result, { source: "wx" })) {
         return err;
       }
       return err;
@@ -481,6 +491,15 @@ export function isScanning() {
   return _scan_status === "scanning";
 }
 
+export function setEmbedScanHostEnabled(enabled) {
+  const nextEnabled = enabled !== false;
+  if (_embed_scan_host_enabled === nextEnabled) {
+    return;
+  }
+  _embed_scan_host_enabled = nextEnabled;
+  __checkScanner();
+}
+
 export function clear() {
   for (let i = 0; i < _scan_listener_list.length; i++) {
     const item = _scan_listener_list[i];