4 files changed, 39 insertions, 2 deletions
diff --git a/DomeKey/HeadphoneKey.h b/DomeKey/HeadphoneKey.h
index 618bdd2..d04e840 100644
--- a/DomeKey/HeadphoneKey.h
+++ b/DomeKey/HeadphoneKey.h
@@ -9,6 +9,7 @@
 #import <Foundation/Foundation.h>
 #import <DDHidLib/DDHidAppleMikey.h>
 
+#import "Sounds.h"
 #import "dome_key_map.h"
 #import "log.h"
 
@@ -26,6 +27,7 @@ static const Milliseconds TIMEOUT_DEFAULT = 500;
     Trigger *_in_mode;
     State *_state;
     Milliseconds _timeout;
+    Sounds *_sounds;
 }
 
 - (instancetype)initWithTimeout:(Milliseconds)timeout;
diff --git a/DomeKey/HeadphoneKey.m b/DomeKey/HeadphoneKey.m
index 122a2c6..f11e8b7 100644
--- a/DomeKey/HeadphoneKey.m
+++ b/DomeKey/HeadphoneKey.m
@@ -22,6 +22,9 @@
         // default should always come from a `Config`, set in the Rust library.
         _timeout = TIMEOUT_DEFAULT;
 
+        _sounds = [[Sounds alloc] init];
+        [_sounds playModeActivated];
+
         // TODO: Think about moving this logger higher up
         dome_key_logger_init();
         dome_key_state_load_map_group(_state);
diff --git a/DomeKey/Sounds.h b/DomeKey/Sounds.h
index 5778bee..3766f26 100644
--- a/DomeKey/Sounds.h
+++ b/DomeKey/Sounds.h
@@ -6,8 +6,14 @@
 //  Copyright © 2018 tw. All rights reserved.
 //
 
-#import <Foundation/Foundation.h>
+#import <AppKit/Appkit.h>
 
-@interface Sounds : NSObject
+@interface Sounds : NSObject {
+    NSSound *_mode_activated;
+    NSSound *_mode_deactivated;
+}
+
+- (void)playModeActivated;
+- (void)playModeDeactivated;
 
 @end
diff --git a/DomeKey/Sounds.m b/DomeKey/Sounds.m
index 8bc2790..7378b3c 100644
--- a/DomeKey/Sounds.m
+++ b/DomeKey/Sounds.m
@@ -8,6 +8,32 @@
 
 #import "Sounds.h"
 
+#import "sound_data.h"
+
 @implementation Sounds
 
+- (instancetype)init
+{
+    self = [super init];
+    if (self) {
+        _mode_activated = [[NSSound alloc] initWithData:[NSData
+            dataWithBytes:sounds_mode_activated_mp3
+            length:sounds_mode_activated_mp3_len]];
+        _mode_deactivated = [[NSSound alloc] initWithData:[NSData
+            dataWithBytes:sounds_mode_deactivated_mp3
+            length:sounds_mode_deactivated_mp3_len]];
+    }
+    return self;
+}
+
+- (void)playModeActivated
+{
+    [_mode_activated play];
+}
+
+- (void)playModeDeactivated
+{
+    [_mode_deactivated play];
+}
+
 @end