1 files changed, 43 insertions, 0 deletions
diff --git a/macosx/HBCodingUtilities.m b/macosx/HBCodingUtilities.m
new file mode 100644
index 000000000..8cf7e02bd
--- /dev/null
+++ b/macosx/HBCodingUtilities.m
@@ -0,0 +1,43 @@
+//
+//  HBCodingUtilities.m
+//  HandBrake
+//
+//  Created by Damiano Galassi on 22/04/15.
+//
+//
+
+#import "HBCodingUtilities.h"
+
+static BOOL useSecureCoding;
+
+@implementation HBCodingUtilities
+
++ (void)initialize
+{
+    static BOOL initialized = NO;
+    if(!initialized && self == [HBCodingUtilities class]) {
+        useSecureCoding = NSProtocolFromString(@"NSSecureCoding") ? YES : NO;
+    }
+}
+
++ (id)decodeObjectOfClass:(Class)aClass forKey:(NSString *)key decoder:(NSCoder *)decoder
+{
+    if (useSecureCoding)
+    {
+        return [decoder decodeObjectOfClass:aClass forKey:key];
+    }
+    else
+    {
+        id obj = [decoder decodeObjectForKey:key];
+        if (![obj isKindOfClass:aClass])
+        {
+            return nil;
+        }
+        else
+        {
+            return obj;
+        }
+    }
+}
+
+@end