避免重复打印

src/pages/UI8/UI8.tsx

@@ -284,6 +284,12 @@ const UI8: React.FC = () => {
 
   // 打印PDF功能
   const handleConfirm = useCallback(async () => {
+    // 避免重复点击导致多次打印
+    if (isPrinting) {
+      window.electronAPI?.log("warn", "[UI8] 检测到重复打印点击，已忽略");
+      return;
+    }
+
     if (!window.electronAPI?.printPdf) {
       const errorMsg = "打印功能不可用，请在 Electron 环境中运行";
       window.electronAPI?.log("error", errorMsg);
@@ -357,7 +363,7 @@ const UI8: React.FC = () => {
     } finally {
       setIsPrinting(false);
     }
-  }, [originPdfUrls, pdfFiles, printers.length, selectedPrinter, navigate]);
+  }, [originPdfUrls, pdfFiles, printers.length, selectedPrinter, navigate, isPrinting]);
 
   const handlePageCountUpdate = useCallback((index: number, numPages: number) => {
     window.electronAPI?.log("info", `[UI8] PDF渲染成功 (index=${index})，共 ${numPages} 页`);
@@ -462,6 +468,7 @@ const UI8: React.FC = () => {
             <ConfirmButton
               text={isPrinting ? "打印中..." : "打印导检单"}
               onClick={handleConfirm}
+              disabled={isPrinting}
             />
           </div>
         </div>