Remember selected input device / short tap for toggle

PushToTalk/HotKey.swift

@@ -71,13 +71,6 @@ class HotKey {
         microphone.status = MicrophoneStatus.HotKeySet
     }
 
-    func checkForDoubleTap() {
-        let timeInterval = NSDate().timeIntervalSince1970
-        let timediff = timeInterval - self.previousEpoc
-        self.previousEpoc = timeInterval
-        self.doubletap = timediff < 0.2
-    }
-
     internal func handleFlagChangedEvent(_ theEvent: NSEvent!) {
         if self.recordingHotKey {
             self.recordingHotKey = false
@@ -94,12 +87,18 @@ class HotKey {
         guard self.enabled else { return }
 
         if theEvent.modifierFlags.contains(self.modifierFlags) {
-            checkForDoubleTap()
+            if microphone.status != .Speaking {
+                let timeInterval = NSDate().timeIntervalSince1970
+                self.previousEpoc = timeInterval
+            }
+
             microphone.status = .Speaking
         } else {
-            if (!self.doubletap) {
+            let timeInterval = NSDate().timeIntervalSince1970
+            let timediff = timeInterval - self.previousEpoc
+            // Only mute on keyup when we pressed long enough so short tap is toggling the state
+            if timediff > 0.2 {
                 microphone.status = .Muted
-                doubletap = false
             }
         }
     }

PushToTalk/Microphone.swift

@@ -33,10 +33,51 @@ class Microphone {
         }
     }
 
+    func getDefaultInputDevice() -> AudioDeviceID {
+        var propertySize = UInt32(MemoryLayout<AudioDeviceID>.size)
+        var deviceID = kAudioDeviceUnknown
+
+        var propertyAddress = AudioObjectPropertyAddress(
+            mSelector: AudioObjectPropertySelector(kAudioHardwarePropertyDefaultInputDevice),
+            mScope: AudioObjectPropertyScope(kAudioObjectPropertyScopeGlobal),
+            mElement: AudioObjectPropertyElement(kAudioObjectPropertyElementMaster))
+
+        AudioObjectGetPropertyData(AudioObjectID(kAudioObjectSystemObject), &propertyAddress, 0, nil, &propertySize, &deviceID)
+
+        return deviceID
+    }
+
     func setupDeviceMenu(menu: NSMenu) throws {
         menu.removeAllItems()
         let devices = try? getInputDevices()
-        self.selectedInput = devices![0]
+
+        let selectedInputId = getDefaultInputDevice()
+
+        Swift.print("Looking for device ID '\(selectedInputId)'")
+        for device in devices! {
+            if device.id == selectedInputId {
+                self.selectedInput = device
+                Swift.print("Selecting device with ID '\(selectedInputId)'")
+            }
+        }
+
+        /*
+        if UserDefaults.standard.integer(forKey: "prefSelectedInputId") != nil {
+            let selectedInputId = UInt32(UserDefaults.standard.integer(forKey: "prefSelectedInputId"))
+
+            Swift.print("Looking for device ID '\(selectedInputId)'")
+            for device in devices! {
+                if device.id == selectedInputId {
+                    self.selectedInput = device
+                    Swift.print("Selecting device with ID '\(selectedInputId)'")
+                }
+            }
+        }
+        if self.selectedInput == nil { 
+            self.selectedInput = devices![0]
+        }
+        */
+
         for device in devices! {
             let item = DeviceMenuItem()
             item.inputDevice = device
@@ -59,6 +100,9 @@ class Microphone {
         }
         item.state = NSControl.StateValue.on
         self.selectedInput = item.inputDevice;
+        let inputId = self.selectedInput!;
+        Swift.print("Selecting '\(inputId.id)'")
+        UserDefaults.standard.set(inputId.id, forKey: "prefSelectedInputId")
         self.status = status
     }
 }