feat: added preprocessor directive for platform dependant compilation

SlidePresenter/ControllerSlidePresenter.csproj

@@ -8,13 +8,23 @@
         <RootNamespace>SwitchSlidePresenter</RootNamespace>
     </PropertyGroup>
 
+    <PropertyGroup Condition="$([MSBuild]::IsOSPlatform('Windows'))">
+        <DefineConstants>OS_WINDOWS</DefineConstants>
+    </PropertyGroup>
+    <PropertyGroup Condition="$([MSBuild]::IsOSPlatform('Linux'))">
+        <DefineConstants>OS_LINUX</DefineConstants>
+    </PropertyGroup>
+    <PropertyGroup Condition="$([MSBuild]::IsOSPlatform('OSX'))">
+        <DefineConstants>OS_MAC</DefineConstants>
+    </PropertyGroup>
+    
     <ItemGroup>
       <PackageReference Include="JoyCon.NET" Version="1.0.1" />
       <PackageReference Include="WiimoteLib.NetCore" Version="1.0.0" />
     </ItemGroup>
 
     <ItemGroup>
-      <ProjectReference Include="..\Win32Api\Win32Api.csproj" />
+      <ProjectReference Include="..\Win32Api\Win32Api.csproj" Condition="$([MSBuild]::IsOSPlatform('Windows'))"/>
     </ItemGroup>
 
 </Project>

SlidePresenter/InputSender/LinuxInputSender.cs

@@ -0,0 +1,13 @@
+#if OS_LINUX
+namespace SwitchSlidePresenter.InputSender;
+
+public class LinuxInputSender : IInputSender {
+	public void NextSlide() {
+
+	}
+
+	public void PreviousSlide() {
+
+	}
+}
+#endif

SlidePresenter/InputSender/MacInputSender.cs

@@ -0,0 +1,13 @@
+#if OS_MAC
+namespace SwitchSlidePresenter.InputSender;
+
+public class MacInputSender : IInputSender {
+	public void NextSlide() {
+
+	}
+
+	public void PreviousSlide() {
+
+	}
+}
+#endif

SlidePresenter/InputSender/WindowsInputSender.cs

@@ -1,4 +1,5 @@
-using System.Runtime.InteropServices;
+#if OS_WINDOWS
+using System.Runtime.InteropServices;
 using Win32Api;
 
 namespace SwitchSlidePresenter.InputSender;
@@ -45,3 +46,4 @@ public class WindowsInputSender : IInputSender {
 		Win32Api.Win32Api.SendInput((uint)inputs.Length, inputs, Marshal.SizeOf(typeof(Input)));
 	}
 }
+#endif

SlidePresenter/SlideSwitcher.cs

@@ -4,7 +4,14 @@ namespace SwitchSlidePresenter;
 
 public class SlideSwitcher : IDisposable {
 	private readonly IGamepadReader? _reader;
+
+#if OS_WINDOWS
 	private readonly IInputSender _inputSender = new WindowsInputSender();
+#elif OS_MAC
+	private readonly IInputSender _inputSender = new MacInputSender();
+#elif OS_LINUX
+	private readonly IInputSender _inputSender = new LinuxInputSender();
+#endif
 
 	public SlideSwitcher(IGamepadReader? reader) {
 		_reader = reader;