Platform toplevel cleanup

src/Android/Avalonia.Android/Platform/SkiaPlatform/PopupImpl.cs

@@ -10,6 +10,7 @@ using Android.OS;
 using Android.Runtime;
 using Android.Views;
 using Android.Widget;
+using Avalonia.Controls;
 using Avalonia.Platform;
 
 namespace Avalonia.Android.Platform.SkiaPlatform
@@ -19,6 +20,9 @@ namespace Avalonia.Android.Platform.SkiaPlatform
         private Point _position;
         private bool _isAdded;
         Action IWindowBaseImpl.Activated { get; set; }
+        public Action<Point> PositionChanged { get; set; }
+        public Action Deactivated { get; set; }
+
         public PopupImpl() : base(ActivityTracker.Current, true)
         {
         }
@@ -33,7 +37,7 @@ namespace Avalonia.Android.Platform.SkiaPlatform
             UpdateParams();
         }
 
-        public override Point Position
+        public Point Position
         {
             get { return _position; }
             set
@@ -85,5 +89,22 @@ namespace Avalonia.Android.Platform.SkiaPlatform
             Hide();
             base.Dispose();
         }
+
+
+        public void Activate()
+        {
+        }
+
+        public void BeginMoveDrag()
+        {
+            //Not supported
+        }
+
+        public void BeginResizeDrag(WindowEdge edge)
+        {
+            //Not supported
+        }
+        
+
     }
 }

src/Android/Avalonia.Android/Platform/SkiaPlatform/TopLevelImpl.cs

@@ -67,8 +67,6 @@ namespace Avalonia.Android.Platform.SkiaPlatform
 
         public Action Closed { get; set; }
 
-        public Action Deactivated { get; set; }
-
         public Action<RawInputEventArgs> Input { get; set; }
 
         public Size MaxClientSize { get; protected set; }
@@ -79,27 +77,17 @@ namespace Avalonia.Android.Platform.SkiaPlatform
 
         public Action<double> ScalingChanged { get; set; }
 
-        public Action<Point> PositionChanged { get; set; }
-
         public View View => _view;
 
         public IPlatformHandle Handle => _view;
 
         public IEnumerable<object> Surfaces => new object[] {this};
-
-        public void Activate()
-        {
-        }
-
+        
         public virtual void Hide()
         {
             _view.Visibility = ViewStates.Invisible;
         }
-
-        public void SetSystemDecorations(bool enabled)
-        {
-        }
-
+        
         public void Invalidate(Rect rect)
         {
             if (_view.Holder?.Surface?.IsValid == true) _view.Invalidate();
@@ -124,40 +112,19 @@ namespace Avalonia.Android.Platform.SkiaPlatform
         {
             InputRoot = inputRoot;
         }
-
-        public void SetTitle(string title)
-        {
-        }
-
+        
         public virtual void Show()
         {
             _view.Visibility = ViewStates.Visible;
         }
 
-        public void BeginMoveDrag()
-        {
-            //Not supported
-        }
-
-        public void BeginResizeDrag(WindowEdge edge)
-        {
-            //Not supported
-        }
-
-        public virtual Point Position { get; set; }
-
         public double Scaling => 1;
 
         void Draw()
         {
             Paint?.Invoke(new Rect(new Point(0, 0), ClientSize));
         }
-
-        public void SetIcon(IWindowIconImpl icon)
-        {
-            // No window icons for mobile platforms
-        }
-
+        
         public virtual void Dispose()
         {
             _view.Dispose();

src/Gtk/Avalonia.Gtk/Avalonia.Gtk.csproj

@@ -61,7 +61,7 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="GtkPlatform.cs" />
     <Compile Include="WindowImpl.cs" />
-    <Compile Include="WindowImplBase.cs" />
+    <Compile Include="TopLevelImpl.cs" />
     <Compile Include="Input\GtkKeyboardDevice.cs" />
     <Compile Include="Input\GtkMouseDevice.cs" />
     <Compile Include="Windows.cs" />

src/Gtk/Avalonia.Gtk/EmbeddableImpl.cs

@@ -12,7 +12,7 @@ using WindowEdge = Avalonia.Controls.WindowEdge;
 
 namespace Avalonia.Gtk
 {
-    class EmbeddableImpl : WindowImplBase, IEmbeddableWindowImpl
+    class EmbeddableImpl : TopLevelImpl, IEmbeddableWindowImpl
     {
 #pragma warning disable CS0067 // Method not used
         public event Action LostFocus;
@@ -37,39 +37,6 @@ namespace Avalonia.Gtk
         {
             get { return new Size(Widget.Allocation.Width, Widget.Allocation.Height); }
         }
-
-        //Stubs are needed for future GTK designer embedding support
-        public override void SetTitle(string title)
-        {
-        }
-
-        public override void Resize(Size value)
-        {
-            
-        }
-
-        public override IDisposable ShowDialog() => Disposable.Create(() => { });
-
-        public override void SetSystemDecorations(bool enabled)
-        {
-        }
-
-        public override void SetIcon(IWindowIconImpl icon)
-        {
-        }
-
-        public override void BeginMoveDrag()
-        {
-        }
-
-        public override void BeginResizeDrag(WindowEdge edge)
-        {
-        }
-
-        public override Point Position
-        {
-            get { return new Point(); } 
-            set {}
-        }
+        
     }
 }

src/Gtk/Avalonia.Gtk/FramebufferManager.cs

@@ -5,10 +5,10 @@ namespace Avalonia.Gtk
 {
     class FramebufferManager : IFramebufferPlatformSurface, IDisposable
     {
-        private readonly WindowImplBase _window;
+        private readonly TopLevelImpl _window;
         private SurfaceFramebuffer _fb;
 
-        public FramebufferManager(WindowImplBase window)
+        public FramebufferManager(TopLevelImpl window)
         {
             _window = window;
         }

src/Gtk/Avalonia.Gtk/SystemDialogImpl.cs

@@ -15,7 +15,7 @@ namespace Avalonia.Gtk
         public Task<string[]> ShowFileDialogAsync(FileDialog dialog, IWindowImpl parent)
         {
             var tcs = new TaskCompletionSource<string[]>();
-            var dlg = new global::Gtk.FileChooserDialog(dialog.Title, ((WindowImplBase)parent)?.Widget.Toplevel as Window, 
+            var dlg = new global::Gtk.FileChooserDialog(dialog.Title, ((TopLevelImpl)parent)?.Widget.Toplevel as Window, 
                 dialog is OpenFileDialog
                     ? FileChooserAction.Open
                     : FileChooserAction.Save,
@@ -57,7 +57,7 @@ namespace Avalonia.Gtk
         public Task<string> ShowFolderDialogAsync(OpenFolderDialog dialog, IWindowImpl parent)
         {
             var tcs = new TaskCompletionSource<string>();
-            var dlg = new global::Gtk.FileChooserDialog(dialog.Title, ((WindowImplBase)parent)?.Widget.Toplevel as Window, 
+            var dlg = new global::Gtk.FileChooserDialog(dialog.Title, ((TopLevelImpl)parent)?.Widget.Toplevel as Window, 
                 FileChooserAction.SelectFolder,
                 "Cancel", ResponseType.Cancel,
                 "Select Folder", ResponseType.Accept)

src/Gtk/Avalonia.Gtk/WindowImplBase.cs → src/Gtk/Avalonia.Gtk/TopLevelImpl.cs

@@ -15,10 +15,10 @@ namespace Avalonia.Gtk
 {
     using Gtk = global::Gtk;
 
-    public abstract class WindowImplBase : IWindowImpl
+    public abstract class TopLevelImpl : ITopLevelImpl
     {
         private IInputRoot _inputRoot;
-        protected Gtk.Widget _window;
+        private Gtk.Widget _widget;
         private FramebufferManager _framebuffer;
 
         private Gtk.IMContext _imContext;
@@ -27,44 +27,43 @@ namespace Avalonia.Gtk
 
         private static readonly Gdk.Cursor DefaultCursor = new Gdk.Cursor(CursorType.LeftPtr);
 
-        protected WindowImplBase(Gtk.Widget window)
+        protected TopLevelImpl(Gtk.Widget window)
         {
-            _window = window;
+            _widget = window;
             _framebuffer = new FramebufferManager(this);
             Init();
         }
 
         void Init()
         {
-            Handle = _window as IPlatformHandle;
-            _window.Events = EventMask.AllEventsMask;
+            Handle = _widget as IPlatformHandle;
+            _widget.Events = EventMask.AllEventsMask;
             _imContext = new Gtk.IMMulticontext();
             _imContext.Commit += ImContext_Commit;
-            _window.Realized += OnRealized;
-            _window.Realize();
-            _window.ButtonPressEvent += OnButtonPressEvent;
-            _window.ButtonReleaseEvent += OnButtonReleaseEvent;
-            _window.ScrollEvent += OnScrollEvent;
-            _window.Destroyed += OnDestroyed;
-            _window.KeyPressEvent += OnKeyPressEvent;
-            _window.KeyReleaseEvent += OnKeyReleaseEvent;
-            _window.ExposeEvent += OnExposeEvent;
-            _window.MotionNotifyEvent += OnMotionNotifyEvent;
+            _widget.Realized += OnRealized;
+            _widget.Realize();
+            _widget.ButtonPressEvent += OnButtonPressEvent;
+            _widget.ButtonReleaseEvent += OnButtonReleaseEvent;
+            _widget.ScrollEvent += OnScrollEvent;
+            _widget.Destroyed += OnDestroyed;
+            _widget.KeyPressEvent += OnKeyPressEvent;
+            _widget.KeyReleaseEvent += OnKeyReleaseEvent;
+            _widget.ExposeEvent += OnExposeEvent;
+            _widget.MotionNotifyEvent += OnMotionNotifyEvent;
 
             
         }
 
         public IPlatformHandle Handle { get; private set; }
-        public Gtk.Widget Widget => _window;
+        public Gtk.Widget Widget => _widget;
         public Gdk.Drawable CurrentDrawable { get; private set; }
 
         void OnRealized (object sender, EventArgs eventArgs)
         {
-            _imContext.ClientWindow = _window.GdkWindow;
+            _imContext.ClientWindow = _widget.GdkWindow;
         }
 
         public abstract Size ClientSize { get; }
-        public abstract void Resize(Size value);
 
         public Size MaxClientSize
         {
@@ -72,7 +71,7 @@ namespace Avalonia.Gtk
             {
                 // TODO: This should take into account things such as taskbar and window border
                 // thickness etc.
-                return new Size(_window.Screen.Width, _window.Screen.Height);
+                return new Size(_widget.Screen.Width, _widget.Screen.Height);
             }
         }
 
@@ -80,7 +79,7 @@ namespace Avalonia.Gtk
         {
             get
             {
-                switch (_window.GdkWindow.State)
+                switch (_widget.GdkWindow.State)
                 {
                     case Gdk.WindowState.Iconified:
                         return Controls.WindowState.Minimized;
@@ -96,14 +95,14 @@ namespace Avalonia.Gtk
                 switch (value)
                 {
                     case Controls.WindowState.Minimized:
-                        _window.GdkWindow.Iconify();
+                        _widget.GdkWindow.Iconify();
                         break;
                     case Controls.WindowState.Maximized:
-                        _window.GdkWindow.Maximize();
+                        _widget.GdkWindow.Maximize();
                         break;
                     case Controls.WindowState.Normal:
-                        _window.GdkWindow.Deiconify();
-                        _window.GdkWindow.Unmaximize();
+                        _widget.GdkWindow.Deiconify();
+                        _widget.GdkWindow.Unmaximize();
                         break;
                 }
             }
@@ -141,15 +140,15 @@ namespace Avalonia.Gtk
 
         public void Invalidate(Rect rect)
         {
-            if (_window?.GdkWindow != null)
-                _window.GdkWindow.InvalidateRect(
+            if (_widget?.GdkWindow != null)
+                _widget.GdkWindow.InvalidateRect(
                     new Rectangle((int) rect.X, (int) rect.Y, (int) rect.Width, (int) rect.Height), true);
         }
 
         public Point PointToClient(Point point)
         {
             int x, y;
-            _window.GdkWindow.GetDeskrelativeOrigin(out x, out y);
+            _widget.GdkWindow.GetDeskrelativeOrigin(out x, out y);
 
             return new Point(point.X - x, point.Y - y);
         }
@@ -157,7 +156,7 @@ namespace Avalonia.Gtk
         public Point PointToScreen(Point point)
         {
             int x, y;
-            _window.GdkWindow.GetDeskrelativeOrigin(out x, out y);
+            _widget.GdkWindow.GetDeskrelativeOrigin(out x, out y);
             return new Point(point.X + x, point.Y + y);
         }
 
@@ -166,28 +165,15 @@ namespace Avalonia.Gtk
             _inputRoot = inputRoot;
         }
 
-        public abstract void SetTitle(string title);
-        public abstract IDisposable ShowDialog();
-        public abstract void SetSystemDecorations(bool enabled);
-        public abstract void SetIcon(IWindowIconImpl icon);
-
 
         public void SetCursor(IPlatformHandle cursor)
         {
-            _window.GdkWindow.Cursor = cursor != null ? new Gdk.Cursor(cursor.Handle) : DefaultCursor;
+            _widget.GdkWindow.Cursor = cursor != null ? new Gdk.Cursor(cursor.Handle) : DefaultCursor;
         }
 
-        public void Show() => _window.Show();
-
-        public void Hide() => _window.Hide();
-        public abstract void BeginMoveDrag();
-        public abstract void BeginResizeDrag(WindowEdge edge);
-        public abstract Point Position { get; set; }
+        public void Show() => _widget.Show();
 
-        void IWindowBaseImpl.Activate()
-        {
-            _window.Activate();
-        }
+        public void Hide() => _widget.Hide();
 
         private static InputModifiers GetModifierKeys(ModifierType state)
         {
@@ -317,9 +303,9 @@ namespace Avalonia.Gtk
         public void Dispose()
         {
             _framebuffer.Dispose();
-            _window.Hide();
-            _window.Dispose();
-            _window = null;
+            _widget.Hide();
+            _widget.Dispose();
+            _widget = null;
         }
     }
 }

src/Gtk/Avalonia.Gtk/WindowImpl.cs

@@ -6,7 +6,7 @@ using Gdk;
 namespace Avalonia.Gtk
 {
     using Gtk = global::Gtk;
-    public class WindowImpl : WindowImplBase
+    public class WindowImpl : TopLevelImpl, IWindowImpl
     {
         private Gtk.Window _window;
         private Gtk.Window Window => _window ?? (_window = (Gtk.Window) Widget);
@@ -63,22 +63,27 @@ namespace Avalonia.Gtk
             }
         }
 
-        public override void Resize(Size value)
+        public void Resize(Size value)
         {
             Window.Resize((int)value.Width, (int)value.Height);
         }
 
-        public override void SetTitle(string title)
+        public void SetTitle(string title)
         {
             Window.Title = title;
         }
 
+        void IWindowBaseImpl.Activate()
+        {
+            _window.Activate();
+        }
+
         void OnFocusActivated(object sender, EventArgs eventArgs)
         {
             Activated();
         }
 
-        public override void BeginMoveDrag()
+        public void BeginMoveDrag()
         {
             int x, y;
             ModifierType mod;
@@ -86,7 +91,7 @@ namespace Avalonia.Gtk
             Window.BeginMoveDrag(1, x, y, 0);
         }
 
-        public override void BeginResizeDrag(Controls.WindowEdge edge)
+        public void BeginResizeDrag(Controls.WindowEdge edge)
         {
             int x, y;
             ModifierType mod;
@@ -94,7 +99,7 @@ namespace Avalonia.Gtk
             Window.BeginResizeDrag((Gdk.WindowEdge)(int)edge, 1, x, y, 0);
         }
 
-        public override Point Position
+        public Point Position
         {
             get
             {
@@ -108,7 +113,7 @@ namespace Avalonia.Gtk
             }
         }
 
-        public override IDisposable ShowDialog()
+        public IDisposable ShowDialog()
         {
             Window.Modal = true;
             Window.Show();
@@ -116,9 +121,9 @@ namespace Avalonia.Gtk
             return Disposable.Empty;
         }
 
-        public override void SetSystemDecorations(bool enabled) => Window.Decorated = enabled;
+        public void SetSystemDecorations(bool enabled) => Window.Decorated = enabled;
 
-        public override void SetIcon(IWindowIconImpl icon)
+        public void SetIcon(IWindowIconImpl icon)
         {
             Window.Icon = ((IconImpl)icon).Pixbuf;
         }

src/iOS/Avalonia.iOS/TopLevelImpl.cs

@@ -32,6 +32,7 @@ namespace Avalonia.iOS
         {
             _keyboardHelper = new KeyboardEventsHelper<TopLevelImpl>(this);
             AutoresizingMask = UIViewAutoresizing.All;
+            _keyboardHelper.ActivateAutoShowKeybord();
         }
 
         [Export("hasText")]
@@ -44,37 +45,21 @@ namespace Avalonia.iOS
         public void DeleteBackward() => _keyboardHelper.DeleteBackward();
 
         public override bool CanBecomeFirstResponder => _keyboardHelper.CanBecomeFirstResponder();
-
-        public Action Activated { get; set; }
+        
         public Action Closed { get; set; }
-        public Action Deactivated { get; set; }
         public Action<RawInputEventArgs> Input { get; set; }
         public Action<Rect> Paint { get; set; }
         public Action<Size> Resized { get; set; }
         public Action<double> ScalingChanged { get; set; }
-        public Action<Point> PositionChanged { get; set; }
 
         public IPlatformHandle Handle => null;
 
         public double Scaling => UIScreen.MainScreen.Scale;
 
-        public WindowState WindowState
-        {
-            get { return WindowState.Normal; }
-            set { }
-        }
-
+       
         public override void LayoutSubviews() => Resized?.Invoke(ClientSize);
 
-        public Size ClientSize
-        {
-            get { return Bounds.Size.ToAvalonia(); }
-            set { InvokeOnMainThread(() => Resized?.Invoke(ClientSize)); }
-        }
-
-        public void Activate()
-        {
-        }
+        public Size ClientSize => Bounds.Size.ToAvalonia();
 
         public override void Draw(CGRect rect)
         {
@@ -93,42 +78,9 @@ namespace Avalonia.iOS
         {
             //Not supported
         }
-
-        public void Show()
-        {
-            _keyboardHelper.ActivateAutoShowKeybord();
-        }
-
-        public void BeginMoveDrag()
-        {
-            //Not supported
-        }
-
-        public void BeginResizeDrag(WindowEdge edge)
-        {
-            //Not supported
-        }
-
-        public Point Position
-        {
-            get { return _position; }
-            set
-            {
-                _position = value;
-                PositionChanged?.Invoke(_position);
-            }
-        }
-
-        public Size MaxClientSize => Bounds.Size.ToAvalonia();
-
+        
         public IEnumerable<object> Surfaces => new object[] { this };
-
-
-        public void Hide()
-        {
-            //Not supported
-        }
-
+        
         public override void TouchesEnded(NSSet touches, UIEvent evt)
         {
             var touch = touches.AnyObject as UITouch;
@@ -182,11 +134,7 @@ namespace Avalonia.iOS
                 _touchLastPoint = location;
             }
         }
-
-        public void SetIcon(IWindowIconImpl icon)
-        {
-        }
-
+        
         public ILockedFramebuffer Lock() => new EmulatedFramebuffer(this);
     }
 }