QR-Scanner: Kamera-Fallbacks und Foto-Upload; weitere Aenderungen

Lagerbestand/wwwroot/js/app-interop.js

@@ -49,6 +49,31 @@
         } catch (e) { /* ignore */ }
     };
 
+    // ---------------------------------------------------------
+    // File download from base64 (used for PDF exports)
+    // ---------------------------------------------------------
+    window.appInterop.downloadFile = function (fileName, base64, mimeType) {
+        try {
+            const bin = atob(base64);
+            const bytes = new Uint8Array(bin.length);
+            for (let i = 0; i < bin.length; i++) bytes[i] = bin.charCodeAt(i);
+            const blob = new Blob([bytes], { type: mimeType || 'application/octet-stream' });
+            const url = URL.createObjectURL(blob);
+            const a = document.createElement('a');
+            a.href = url;
+            a.download = fileName || 'download';
+            a.style.display = 'none';
+            document.body.appendChild(a);
+            a.click();
+            document.body.removeChild(a);
+            setTimeout(function () { URL.revokeObjectURL(url); }, 1000);
+            return true;
+        } catch (e) {
+            console.warn('[appInterop] downloadFile failed', e);
+            return false;
+        }
+    };
+
     // ---------------------------------------------------------
     // beforeunload: warn user when draft flag is set
     // ---------------------------------------------------------