feat(audio-feedback): Play sounds when toggling event recording (#1525)

This commit adds functionality for playing sounds on starting/stopping event recording when sound feedback is enabled.

When rapidly pressing Shift+F7, there may be some delay in sound playback as event recording takes a moment to toggle in some circumstances.

Closes #1440.

src/AccessibilityInsights.SharedUx/Controls/EventRecordControl.xaml.cs

@@ -15,7 +15,10 @@
 using System;
 using System.Collections.Generic;
 using System.Globalization;
+using System.IO;
 using System.Linq;
+using System.Media;
+using System.Reflection;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Automation;
@@ -36,6 +39,9 @@ public partial class EventRecordControl : UserControl
 
         public TwoStateButtonViewModel vmEventRecorder { get; private set; } = new TwoStateButtonViewModel(ButtonState.Off);
 
+        private Stream startRecordingSoundStream, stopRecordingSoundStream;
+        private SoundPlayer player;
+
         /// <summary>
         /// Event handler to main window for recording start
         /// </summary>
@@ -95,8 +101,12 @@ public static ConfigurationModel AppConfiguration
         public EventRecordControl()
         {
             InitializeComponent();
-
             InitCommandBindings();
+
+            player = new SoundPlayer();
+            Assembly assembly = Assembly.GetExecutingAssembly();
+            startRecordingSoundStream = assembly.GetManifestResourceStream(assembly.GetName().Name + ".Resources.Sound.start_event_recording.wav");
+            stopRecordingSoundStream = assembly.GetManifestResourceStream(assembly.GetName().Name + ".Resources.Sound.stop_event_recording.wav");
         }
 
         void InitCommandBindings()
@@ -184,6 +194,18 @@ private void onbuttonEventRecorderClicked(object sender, RoutedEventArgs e)
             HollowHighlightDriver.GetDefaultInstance().Clear();
         }
 
+        /// <summary>If sounds are enabled, play the passed-in stream. Used to enable sound feedback when toggling recording.</summary>
+        private void PlaySoundIfNeeded(Stream stream)
+        {
+            if (HelperMethods.ShouldPlaySound)
+            {
+                player.Stop();
+                player.Stream = stream;
+                player.Stream.Position = 0;
+                player.Play();
+            }
+        }
+
         /// <summary>
         /// Toggle event recording
         /// </summary>
@@ -236,6 +258,8 @@ private void StartRecordingEvent()
                 this.tbIntro.Visibility = Visibility.Collapsed;
                 this.svData.Visibility = Visibility.Visible;
 
+                PlaySoundIfNeeded(startRecordingSoundStream);
+
                 this.NotifyRecordingChange(true);
 
                 Logger.PublishTelemetryEvent(TelemetryAction.Event_Start_Record);
@@ -310,6 +334,8 @@ await Task.Run(() =>
 
                 this.ctrlProgressRing.Deactivate();
 
+                PlaySoundIfNeeded(stopRecordingSoundStream);
+
                 this.vmEventRecorder.State = ButtonState.Off;
                 this.NotifyRecordingChange(false);
             }

src/AccessibilityInsights.SharedUx/SharedUx.csproj

@@ -85,4 +85,13 @@
     </Page>
   </ItemGroup>
 
+  <ItemGroup>
+    <None Remove="Resources\Sound\start_event_recording.wav" />
+    <EmbeddedResource Include="Resources\Sound\start_event_recording.wav" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Remove="Resources\Sound\stop_event_recording.wav" />
+    <EmbeddedResource Include="Resources\Sound\stop_event_recording.wav" />
+  </ItemGroup>
 </Project>