优化++

src/_export.js

@@ -13,8 +13,12 @@ import { createUUID } from "./utils/uuid";
 import {
   dispatchEmbedScanResult,
   acknowledgeEmbedScanConsumed,
+  dispatchEmbedScanError,
 } from "./services/provider/scan";
-import { setEmbedScanResultForwarder } from "./services/embedScanBridge";
+import {
+  setEmbedScanResultForwarder,
+  setEmbedScanErrorForwarder,
+} from "./services/embedScanBridge";
 
 const EMBED_SOURCE = "IScanEmbed";
 const EMBED_V = 1;
@@ -25,6 +29,8 @@ const embedChildSources = new Set();
 const EMBED_LISTENER_METHODS = new Set([
   "onScanListener",
   "offScanListener",
+  "onScanErrorListener",
+  "offScanErrorListener",
   "clear",
 ]);
 
@@ -105,6 +111,26 @@ function hydrateEmbedParams(params, messageSource, targetOrigin) {
   return params.map(walk);
 }
 
+function broadcastScanErrorToEmbedChildren(error) {
+  if (embedChildSources.size === 0 || error == null || error === "") {
+    return;
+  }
+  embedChildSources.forEach((source) => {
+    try {
+      source.postMessage(
+        {
+          source: EMBED_SOURCE,
+          v: EMBED_V,
+          kind: "forwardScanError",
+          error,
+        },
+        "*"
+      );
+    } catch (e) {
+    }
+  });
+}
+
 function broadcastScanResultToEmbedChildren(result) {
   if (embedChildSources.size === 0 || result == null || result === "") {
     return;
@@ -198,6 +224,12 @@ function embedChildOnMessage(ev) {
     }
     return;
   }
+  if (data.kind === "forwardScanError") {
+    if (typeof data.error === "string") {
+      dispatchEmbedScanError(data.error);
+    }
+    return;
+  }
   if (data.kind === "invokeResult") {
     const pending = pendingInvokes[data.id];
     if (!pending) {
@@ -307,6 +339,7 @@ export function installEmbedHost(lib) {
   }
   embedHostInstalled = true;
   setEmbedScanResultForwarder(broadcastScanResultToEmbedChildren);
+  setEmbedScanErrorForwarder(broadcastScanErrorToEmbedChildren);
   window.addEventListener("message", (ev) => {
     const data = ev.data;
     if (!isEmbedMessage(data)) {