Add API to prevent App Nap.

native/Avalonia.Native/src/OSX/Avalonia.Native.OSX.xcodeproj/project.pbxproj

@@ -43,6 +43,7 @@
 		523484CA26EA688F00EA0C2C /* trayicon.mm in Sources */ = {isa = PBXBuildFile; fileRef = 523484C926EA688F00EA0C2C /* trayicon.mm */; };
 		5B21A982216530F500CEE36E /* cursor.mm in Sources */ = {isa = PBXBuildFile; fileRef = 5B21A981216530F500CEE36E /* cursor.mm */; };
 		5B8BD94F215BFEA6005ED2A7 /* clipboard.mm in Sources */ = {isa = PBXBuildFile; fileRef = 5B8BD94E215BFEA6005ED2A7 /* clipboard.mm */; };
+		855EDC9F28C6546F00807998 /* PlatformBehaviorInhibition.mm in Sources */ = {isa = PBXBuildFile; fileRef = 855EDC9E28C6546F00807998 /* PlatformBehaviorInhibition.mm */; };
 		AB00E4F72147CA920032A60A /* main.mm in Sources */ = {isa = PBXBuildFile; fileRef = AB00E4F62147CA920032A60A /* main.mm */; };
 		AB1E522C217613570091CD71 /* OpenGL.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AB1E522B217613570091CD71 /* OpenGL.framework */; };
 		AB661C1E2148230F00291242 /* AppKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AB661C1D2148230F00291242 /* AppKit.framework */; };
@@ -95,6 +96,7 @@
 		5B21A981216530F500CEE36E /* cursor.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = cursor.mm; sourceTree = "<group>"; };
 		5B8BD94E215BFEA6005ED2A7 /* clipboard.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = clipboard.mm; sourceTree = "<group>"; };
 		5BF943652167AD1D009CAE35 /* cursor.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = cursor.h; sourceTree = "<group>"; };
+		855EDC9E28C6546F00807998 /* PlatformBehaviorInhibition.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = PlatformBehaviorInhibition.mm; sourceTree = "<group>"; };
 		AB00E4F62147CA920032A60A /* main.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = main.mm; sourceTree = "<group>"; };
 		AB1E522B217613570091CD71 /* OpenGL.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = OpenGL.framework; path = System/Library/Frameworks/OpenGL.framework; sourceTree = SDKROOT; };
 		AB661C1D2148230F00291242 /* AppKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AppKit.framework; path = System/Library/Frameworks/AppKit.framework; sourceTree = SDKROOT; };
@@ -140,6 +142,7 @@
 		AB7A61E62147C814003C5833 = {
 			isa = PBXGroup;
 			children = (
+				855EDC9E28C6546F00807998 /* PlatformBehaviorInhibition.mm */,
 				BC11A5BC2608D58F0017BAD0 /* automation.h */,
 				BC11A5BD2608D58F0017BAD0 /* automation.mm */,
 				1A1852DB23E05814008F0DED /* deadlock.mm */,
@@ -288,6 +291,7 @@
 				1A3E5EAE23E9FB1300EDE661 /* cgl.mm in Sources */,
 				BC11A5BF2608D58F0017BAD0 /* automation.mm in Sources */,
 				37E2330F21583241000CB7E2 /* KeyTransform.mm in Sources */,
+				855EDC9F28C6546F00807998 /* PlatformBehaviorInhibition.mm in Sources */,
 				520624B322973F4100C4DCEF /* menu.mm in Sources */,
 				37A517B32159597E00FBA241 /* Screens.mm in Sources */,
 				1AFD334123E03C4F0042899B /* controlhost.mm in Sources */,

native/Avalonia.Native/src/OSX/PlatformBehaviorInhibition.mm

@@ -0,0 +1,39 @@
+#include "common.h"
+
+namespace
+{
+    id<NSObject> s_inhibitAppSleepHandle{};
+}
+
+class PlatformBehaviorInhibition : public ComSingleObject<IAvnPlatformBehaviorInhibition, &IID_IAvnCursorFactory>
+{
+public:
+    FORWARD_IUNKNOWN()
+    
+    virtual void SetInhibitAppSleep(bool inhibitAppSleep, char* reason) override
+    {
+        START_COM_CALL;
+        
+        @autoreleasepool
+        {
+            if (inhibitAppSleep && s_inhibitAppSleepHandle == nullptr)
+            {
+                NSActivityOptions options = NSActivityUserInitiatedAllowingIdleSystemSleep;
+                s_inhibitAppSleepHandle = [[NSProcessInfo processInfo] beginActivityWithOptions:options reason:[NSString stringWithUTF8String: reason]];
+            }
+            
+            if (!inhibitAppSleep)
+            {
+                s_inhibitAppSleepHandle = nullptr;
+            }
+        }
+    }
+};
+
+extern IAvnPlatformBehaviorInhibition* CreatePlatformBehaviorInhibition()
+{
+    @autoreleasepool
+    {
+        return new PlatformBehaviorInhibition();
+    }
+}

native/Avalonia.Native/src/OSX/common.h

@@ -26,6 +26,7 @@ extern IAvnTrayIcon* CreateTrayIcon();
 extern IAvnMenuItem* CreateAppMenuItem();
 extern IAvnMenuItem* CreateAppMenuItemSeparator();
 extern IAvnApplicationCommands* CreateApplicationCommands();
+extern IAvnPlatformBehaviorInhibition* CreatePlatformBehaviorInhibition();
 extern IAvnNativeControlHost* CreateNativeControlHost(NSView* parent);
 extern IAvnPlatformSettings* CreatePlatformSettings();
 extern void SetAppMenu(IAvnMenu *menu);

native/Avalonia.Native/src/OSX/main.mm

@@ -408,6 +408,17 @@ public:
             return S_OK;
         }
     }
+
+    virtual HRESULT CreatePlatformBehaviorInhibition(IAvnPlatformBehaviorInhibition** ppv) override
+    {
+        START_COM_CALL;
+        
+        @autoreleasepool
+        {
+            *ppv = ::CreatePlatformBehaviorInhibition();
+            return S_OK;
+        }
+    }
 };
 
 extern "C" IAvaloniaNativeFactory* CreateAvaloniaNative()

src/Avalonia.Base/Platform/IPlatformBehaviorInhibition.cs

@@ -0,0 +1,12 @@
+using System.Threading.Tasks;
+
+namespace Avalonia.Platform
+{
+    /// <summary>
+    /// Allows to inhibit platform specific behavior.
+    /// </summary>
+    public interface IPlatformBehaviorInhibition
+    {
+        Task SetInhibitAppSleep(bool inhibitAppSleep, string reason);
+    }
+}

src/Avalonia.Controls/PlatformInhibitionType.cs

@@ -0,0 +1,13 @@
+namespace Avalonia.Controls
+{
+    /// <summary>
+    /// A platform specific behavior that can be inhibited.
+    /// </summary>
+    public enum PlatformInhibitionType
+    {
+        /// <summary>
+        /// When inhibited, prevents the app from being put to sleep or being given a lower priority when not in focus.
+        /// </summary>
+        AppSleep
+    }
+}

src/Avalonia.Controls/TopLevel.cs

@@ -20,6 +20,7 @@ using Avalonia.Styling;
 using Avalonia.Utilities;
 using Avalonia.Input.Platform;
 using System.Linq;
+using System.Threading.Tasks;
 
 namespace Avalonia.Controls
 {
@@ -570,6 +571,30 @@ namespace Avalonia.Controls
         /// <param name="e">The event args.</param>
         protected virtual void OnClosed(EventArgs e) => Closed?.Invoke(this, e);
 
+        /// <summary>
+        /// Requests a <see cref="PlatformInhibitionType"/> to be inhibited.
+        /// The behavior remains inhibited until the return value is disposed.
+        /// The available set of <see cref="PlatformInhibitionType"/>s depends on the platform.
+        /// If a behavior is inhibited on a platform where this type is not supported the request will have no effect.
+        /// </summary>
+        protected async Task<IDisposable> RequestPlatformInhibition(PlatformInhibitionType type, string reason)
+        {
+            var platformBehaviorInhibition = PlatformImpl?.TryGetFeature<IPlatformBehaviorInhibition>();
+            if (platformBehaviorInhibition == null)
+            {
+                return Disposable.Create(() => { });
+            }
+
+            switch (type)
+            {
+                case PlatformInhibitionType.AppSleep:
+                    await platformBehaviorInhibition.SetInhibitAppSleep(true, reason);
+                    return Disposable.Create(() => platformBehaviorInhibition.SetInhibitAppSleep(false, reason).Wait());
+                default:
+                    return Disposable.Create(() => { });
+            }
+        }
+
         /// <summary>
         /// Tries to get a service from an <see cref="IAvaloniaDependencyResolver"/>, logging a
         /// warning if not found.

src/Avalonia.Native/AvaloniaNativePlatform.cs

@@ -158,25 +158,4 @@ namespace Avalonia.Native
             throw new NotImplementedException();
         }
     }
-
-    public class AvaloniaNativeMacOptions
-    {
-        private readonly IAvnMacOptions _opts;
-        private bool _showInDock;
-        internal AvaloniaNativeMacOptions(IAvnMacOptions opts)
-        {
-            _opts = opts;
-            ShowInDock = true;
-        }
-
-        public bool ShowInDock
-        {
-            get => _showInDock;
-            set
-            {
-                _showInDock = value;
-                _opts.SetShowInDock(value ? 1 : 0);
-            }
-        }
-    }
 }

src/Avalonia.Native/PlatformBehaviorInhibition.cs

@@ -0,0 +1,20 @@
+using System.Threading.Tasks;
+using Avalonia.Native.Interop;
+using Avalonia.Platform;
+
+namespace Avalonia.Native
+{
+    internal class PlatformBehaviorInhibition : IPlatformBehaviorInhibition
+    {
+        readonly IAvnPlatformBehaviorInhibition _native;
+
+        internal PlatformBehaviorInhibition(IAvnPlatformBehaviorInhibition native)
+            => _native = native;
+
+        public Task SetInhibitAppSleep(bool inhibitAppSleep, string reason)
+        {
+            _native.SetInhibitAppSleep(inhibitAppSleep ? 1 : 0, reason);
+            return Task.CompletedTask;
+        }
+    }
+}

src/Avalonia.Native/avn.idl

@@ -503,6 +503,7 @@ interface IAvaloniaNativeFactory : IUnknown
      HRESULT CreateTrayIcon(IAvnTrayIcon** ppv);
      HRESULT CreateApplicationCommands(IAvnApplicationCommands** ppv);
      HRESULT CreatePlatformSettings(IAvnPlatformSettings** ppv);
+     HRESULT CreatePlatformBehaviorInhibition(IAvnPlatformBehaviorInhibition** ppv);
 }
 
 [uuid(233e094f-9b9f-44a3-9a6e-6948bbdd9fb1)]
@@ -924,3 +925,9 @@ interface IAvnPlatformSettings : IUnknown
     uint GetAccentColor();
     void RegisterColorsChange(IAvnActionCallback* callback);
 }
+
+[uuid(12edf00d-5803-4d3f-9947-b4840e5e9372)]
+interface IAvnPlatformBehaviorInhibition : IUnknown
+{
+    void SetInhibitAppSleep(bool inhibitAppSleep, char* reason);
+}