MacGui: move some kvo helpers to the UIAdditions category.

1 files changed, 15 insertions, 0 deletions

diff --git a/macosx/HBRange+UIAdditions.m b/macosx/HBRange+UIAdditions.m
index f7061acf7..18710a159 100644
--- a/macosx/HBRange+UIAdditions.m
+++ b/macosx/HBRange+UIAdditions.m
@@ -30,14 +30,29 @@
     return self.type == HBRangeTypeChapters;
 }
 
++ (NSSet<NSString *> *)keyPathsForValuesAffectingChaptersSelected
+{
+    return [NSSet setWithObjects:@"type", nil];
+}
+
 - (BOOL)secondsSelected
 {
     return self.type == HBRangeTypeSeconds;
 }
 
++ (NSSet<NSString *> *)keyPathsForValuesAffectingSecondsSelected
+{
+    return [NSSet setWithObjects:@"type", nil];
+}
+
 - (BOOL)framesSelected
 {
     return self.type == HBRangeTypeFrames;
 }
 
++ (NSSet<NSString *> *)keyPathsForValuesAffectingFramesSelected
+{
+    return [NSSet setWithObjects:@"type", nil];
+}
+
 @end