Searching for a workaround for NSOpenPanel validation bug

MacPass/KPKFormat+MPUTIDetection.m

@@ -0,0 +1,37 @@
+//
+//  KPKFormat+MPUTIDetection.m
+//  MacPass
+//
+//  Created by Michael Starke on 19/11/14.
+//  Copyright (c) 2014 HicknHack Software GmbH. All rights reserved.
+//
+
+#import "KPKFormat+MPUTIDetection.h"
+
+#import "MPConstants.h"
+
+@implementation KPKFormat (MPUTIDetection)
+
+- (NSDictionary *)_typeToUTIdictionary {
+  static NSDictionary *typeToUTI;
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^{
+    typeToUTI = @{
+                  @(KPKLegacyVersion) : MPLegacyDocumentUTI,
+                  @(KPKXmlVersion) : MPXMLDocumentUTI
+                  };
+  });
+  return typeToUTI;
+}
+
+- (NSString *)typeForData:(NSData *)data {
+  KPKVersion version = [self databaseVersionForData:data];
+  return [self _typeToUTIdictionary][@(version)];
+}
+
+- (NSString *)typeForContentOfURL:(NSURL *)url {
+  NSData *data = [NSData dataWithContentsOfURL:url];
+  return [self typeForData:data];
+}
+
+@end