v3.5.3版本更新1

apps/h5-shop/src/contexts/ShopToastContext.tsx

@@ -0,0 +1,53 @@
+import { createContext, useCallback, useContext, useEffect, useRef, useState, type ReactNode } from 'react';
+import { registerShopToastListener, type ShopToastVariant } from '../lib/toast';
+
+type ShopToastContextValue = {
+  showToast: (message: string, variant?: ShopToastVariant) => void;
+};
+
+const ShopToastContext = createContext<ShopToastContextValue | null>(null);
+
+export function ShopToastProvider({ children }: { children: ReactNode }) {
+  const [toast, setToast] = useState('');
+  const [variant, setVariant] = useState<ShopToastVariant>('error');
+  const timerRef = useRef<number | null>(null);
+
+  const showToast = useCallback((message: string, nextVariant: ShopToastVariant = 'error') => {
+    if (timerRef.current) window.clearTimeout(timerRef.current);
+    setVariant(nextVariant);
+    setToast(message);
+    timerRef.current = window.setTimeout(() => {
+      setToast('');
+      timerRef.current = null;
+    }, nextVariant === 'error' ? 2800 : 2000);
+  }, []);
+
+  useEffect(() => {
+    registerShopToastListener(showToast);
+    return () => {
+      registerShopToastListener(null);
+      if (timerRef.current) window.clearTimeout(timerRef.current);
+    };
+  }, [showToast]);
+
+  return (
+    <ShopToastContext.Provider value={{ showToast }}>
+      {children}
+      {toast ? (
+        <div
+          className={`shop-float-toast${variant === 'error' ? ' shop-float-toast--error' : ''}`}
+          role="alert"
+          aria-live="assertive"
+        >
+          {toast}
+        </div>
+      ) : null}
+    </ShopToastContext.Provider>
+  );
+}
+
+export function useShopToast(): ShopToastContextValue {
+  const ctx = useContext(ShopToastContext);
+  if (!ctx) throw new Error('useShopToast 必须在 ShopToastProvider 内使用');
+  return ctx;
+}