From 4cbef9faa7b6d1667911ac743a8d947538469cec Mon Sep 17 00:00:00 2001
From: Yoshimasa Niwa <niw@niw.at>
Date: Mon, 29 Jan 2018 17:22:50 -0800
Subject: [PATCH] Add sound effect feature.

---
 HapticKey/Classes/HTKAppDelegate.m    | 17 +++++++++++++++++
 HapticKey/Classes/HTKHapticFeedback.h |  6 ++++++
 HapticKey/Classes/HTKHapticFeedback.m | 21 +++++++++++++++++++++
 3 files changed, 44 insertions(+)

diff --git a/HapticKey/Classes/HTKAppDelegate.m b/HapticKey/Classes/HTKAppDelegate.m
index 86eacaf..6cc324b 100644
--- a/HapticKey/Classes/HTKAppDelegate.m
+++ b/HapticKey/Classes/HTKAppDelegate.m
@@ -168,6 +168,7 @@ - (void)_htk_main_updateHapticFeedback
     }
 
     [self _htk_main_updateHapticFeedbackType];
+    [self _htk_main_updateSoundFeedbackType];
 }
 
 - (void)_htk_main_updateHapticFeedbackType
@@ -189,6 +190,22 @@ - (void)_htk_main_updateHapticFeedbackType
     }
 }
 
+- (void)_htk_main_updateSoundFeedbackType
+{
+    if (!self.hapticFeedback) {
+        return;
+    }
+
+    switch (self.soundEffectType) {
+        case HTKAppDelegateSoundEffectTypeNone:
+            self.hapticFeedback.soundType = HTKSoundFeedbackTypeNone;
+            break;
+        case HTKAppDelegateSoundEffectTypeDefault:
+            self.hapticFeedback.soundType = HTKSoundFeedbackTypeDefault;
+            break;
+    }
+}
+
 - (void)_htk_main_updateMainBundleLoginItem
 {
     if (!self.finishedLaunching) {
diff --git a/HapticKey/Classes/HTKHapticFeedback.h b/HapticKey/Classes/HTKHapticFeedback.h
index 96e7279..7b95965 100644
--- a/HapticKey/Classes/HTKHapticFeedback.h
+++ b/HapticKey/Classes/HTKHapticFeedback.h
@@ -18,11 +18,17 @@ typedef NS_ENUM(NSUInteger, HTKHapticFeedbackType) {
     HTKHapticFeedbackTypeStrong
 };
 
+typedef NS_ENUM(NSUInteger, HTKSoundFeedbackType) {
+    HTKSoundFeedbackTypeNone,
+    HTKSoundFeedbackTypeDefault
+};
+
 @interface HTKHapticFeedback : NSObject
 
 @property (nonatomic, readonly) HTKEventListener *eventListener;
 @property (nonatomic, getter=isEnabled) BOOL enabled;
 @property (nonatomic) HTKHapticFeedbackType type;
+@property (nonatomic) HTKSoundFeedbackType soundType;
 
 + (instancetype)new NS_UNAVAILABLE;
 - (instancetype)init NS_UNAVAILABLE;
diff --git a/HapticKey/Classes/HTKHapticFeedback.m b/HapticKey/Classes/HTKHapticFeedback.m
index 70c4263..e9cf5ed 100644
--- a/HapticKey/Classes/HTKHapticFeedback.m
+++ b/HapticKey/Classes/HTKHapticFeedback.m
@@ -10,15 +10,20 @@
 #import "HTKEventListener.h"
 #import "HTKHapticFeedback.h"
 #import "HTKMultitouchActuator.h"
+#import "HTKSystemSound.h"
 #import "HTKTimer.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
 static const NSTimeInterval kMinimumActuationInterval = 0.05;
 
+static NSString * const kDefaultSystemSoundsGroup = @"ink";
+static NSString * const kDefaultSystemSoundsName = @"InkSoundBecomeMouse.aif";
+
 @interface HTKHapticFeedback () <HTKEventListenerDelegate>
 
 @property (nonatomic, nullable) HTKTimer *timer;
+@property (nonatomic, readonly) HTKSystemSound *defaultSystemSound;
 
 @end
 
@@ -36,6 +41,8 @@ - (instancetype)initWithEventListener:(HTKEventListener *)eventListener
         _eventListener = eventListener;
         _eventListener.delegate = self;
         _type = HTKHapticFeedbackTypeMedium;
+
+        _defaultSystemSound = [[HTKSystemSound alloc] initWithSystemSoundsGroup:kDefaultSystemSoundsGroup name:kDefaultSystemSoundsName];
     }
     return self;
 }
@@ -61,9 +68,13 @@ - (void)eventListener:(HTKEventListener *)eventListener didListenEvent:(HTKEvent
     self.timer = [[HTKTimer alloc] initWithInterval:kMinimumActuationInterval target:self selector:@selector(_htk_timer_didFire:)];
 
     const SInt32 actuationID = [self _htk_main_actuationID];
+    HTKSystemSound * const systemSound = [self _htk_main_systemSound];
     switch (event.phase) {
         case HTKEventPhaseBegin:
             [[HTKMultitouchActuator sharedActuator] actuateActuationID:actuationID unknown1:0 unknown2:0.0 unknown3:2.0];
+            if (systemSound) {
+                [systemSound play];
+            }
             break;
         case HTKEventPhaseEnd:
             [[HTKMultitouchActuator sharedActuator] actuateActuationID:actuationID unknown1:0 unknown2:0.0 unknown3:0.0];
@@ -95,6 +106,16 @@ - (SInt32)_htk_main_actuationID
     return 0;
 }
 
+- (nullable HTKSystemSound *)_htk_main_systemSound
+{
+    switch (self.soundType) {
+        case HTKSoundFeedbackTypeNone:
+            return nil;
+        case HTKSoundFeedbackTypeDefault:
+            return self.defaultSystemSound;
+    }
+}
+
 @end
 
 NS_ASSUME_NONNULL_END