1 files changed, 50 insertions, 0 deletions
diff --git a/Framework/MASShortcutView+Bindings.m b/Framework/MASShortcutView+Bindings.m
new file mode 100644
index 0000000..54c5111
--- /dev/null
+++ b/Framework/MASShortcutView+Bindings.m
@@ -0,0 +1,50 @@
+#import "MASShortcutView+Bindings.h"
+
+@implementation MASShortcutView (Bindings)
+
+- (NSString*) associatedUserDefaultsKey
+{
+    NSDictionary* bindingInfo = [self infoForBinding:MASShortcutBinding];
+    if (bindingInfo != nil) {
+        NSString *keyPath = [bindingInfo objectForKey:NSObservedKeyPathKey];
+        NSString *key = [keyPath stringByReplacingOccurrencesOfString:@"values." withString:@""];
+        return key;
+    } else {
+        return nil;
+    }
+}
+
+- (void) setAssociatedUserDefaultsKey: (NSString*) newKey withTransformer: (NSValueTransformer*) transformer
+{
+    // Break previous binding if any
+    NSString *currentKey = [self associatedUserDefaultsKey];
+    if (currentKey != nil) {
+        [self unbind:currentKey];
+    }
+
+    // Stop if the new binding is nil
+    if (newKey == nil) {
+        return;
+    }
+
+    NSDictionary *options = transformer ?
+        @{NSValueTransformerBindingOption:transformer} :
+        nil;
+
+    [self bind:MASShortcutBinding
+        toObject:[NSUserDefaultsController sharedUserDefaultsController]
+        withKeyPath:[@"values." stringByAppendingString:newKey]
+        options:options];
+}
+
+- (void) setAssociatedUserDefaultsKey: (NSString*) newKey withTransformerName: (NSString*) transformerName
+{
+    [self setAssociatedUserDefaultsKey:newKey withTransformer:[NSValueTransformer valueTransformerForName:transformerName]];
+}
+
+- (void) setAssociatedUserDefaultsKey: (NSString*) newKey
+{
+    [self setAssociatedUserDefaultsKey:newKey withTransformerName:NSKeyedUnarchiveFromDataTransformerName];
+}
+
+@end