Enable Window Sizing

_omnisharp.sln

@@ -94,6 +94,16 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Controls.Foldable", "src\Co
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Maps", "src\Core\maps\src\Maps.csproj", "{1C9F9D5A-2CF7-4ADB-A9F5-672ACC05B035}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Graphics", "Graphics", "{E4884871-4A1B-43BC-814F-E3D6E52B1673}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{42AB9AE1-631D-4AD4-85B7-910FF0940BDB}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "test", "test", "{936C47A9-A7EA-4FBD-8733-CED1D4100E69}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Graphics", "src\Graphics\src\Graphics\Graphics.csproj", "{CF056C95-51C4-4366-9D06-41D2B15EFEE4}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Graphics.Tests", "src\Graphics\tests\Graphics.Tests\Graphics.Tests.csproj", "{56BBFDBD-254F-42B6-9984-46E19C53FB00}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -211,6 +221,14 @@ Global
 		{1C9F9D5A-2CF7-4ADB-A9F5-672ACC05B035}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{1C9F9D5A-2CF7-4ADB-A9F5-672ACC05B035}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{1C9F9D5A-2CF7-4ADB-A9F5-672ACC05B035}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CF056C95-51C4-4366-9D06-41D2B15EFEE4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CF056C95-51C4-4366-9D06-41D2B15EFEE4}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CF056C95-51C4-4366-9D06-41D2B15EFEE4}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CF056C95-51C4-4366-9D06-41D2B15EFEE4}.Release|Any CPU.Build.0 = Release|Any CPU
+		{56BBFDBD-254F-42B6-9984-46E19C53FB00}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{56BBFDBD-254F-42B6-9984-46E19C53FB00}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{56BBFDBD-254F-42B6-9984-46E19C53FB00}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{56BBFDBD-254F-42B6-9984-46E19C53FB00}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -254,6 +272,10 @@ Global
 		{50BCB5CD-DC2A-42AA-B921-D99B19625CE1} = {C564DDD6-DE79-45CD-88EA-3F690481572A}
 		{F0A48792-ACD7-4B72-83EB-C56A70FA5A3A} = {50C758FE-4E10-409A-94F5-A75480960864}
 		{1C9F9D5A-2CF7-4ADB-A9F5-672ACC05B035} = {E8AD265B-3C67-4640-AC58-A522F9FB3361}
+		{42AB9AE1-631D-4AD4-85B7-910FF0940BDB} = {E4884871-4A1B-43BC-814F-E3D6E52B1673}
+		{936C47A9-A7EA-4FBD-8733-CED1D4100E69} = {E4884871-4A1B-43BC-814F-E3D6E52B1673}
+		{CF056C95-51C4-4366-9D06-41D2B15EFEE4} = {42AB9AE1-631D-4AD4-85B7-910FF0940BDB}
+		{56BBFDBD-254F-42B6-9984-46E19C53FB00} = {936C47A9-A7EA-4FBD-8733-CED1D4100E69}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {0B8ABEAD-D2B5-4370-A187-62B5ABE4EE50}

src/Controls/samples/Controls.Sample/Pages/Core/MultiWindowPage.xaml

@@ -4,18 +4,44 @@
     xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
     x:Class="Maui.Controls.Sample.Pages.MultiWindowPage"
     xmlns:views="clr-namespace:Maui.Controls.Sample.Pages.Base">
-    <views:BasePage.Content>
-        <StackLayout
-            Margin="12">
-            <Button 
-                Clicked="OnNewWindowClicked"
-                Text="Open new Window" />
-
-            <Button 
-                Clicked="OnCloseWindowClicked"
-                Text="Close this Window" />
-
-            <Label Text="Window Count: 0" x:Name="label" />
-        </StackLayout>
-    </views:BasePage.Content>
+
+    <StackLayout
+        Margin="12">
+
+        <Button 
+            Clicked="OnNewWindowClicked"
+            Text="Open a new Window" />
+
+        <Button 
+            Clicked="OnCloseWindowClicked"
+            Text="Close this Window" />
+
+        <Label Text="Window Frame:" />
+        <Label Text="{Binding Window.X, StringFormat='X = {0:0.00}'}" />
+        <Label Text="{Binding Window.Y, StringFormat='Y = {0:0.00}'}" />
+        <Label Text="{Binding Window.Width, StringFormat='W = {0:0.00}'}" />
+        <Label Text="{Binding Window.Height, StringFormat='H = {0:0.00}'}" />
+
+        <Button 
+            Clicked="OnSetMinSize"
+            Text="Set the minimum size to 640x480" />
+
+        <Button 
+            Clicked="OnSetMaxSize"
+            Text="Set the maximum size to 800x600" />
+
+        <Button 
+            Clicked="OnSetFreeSize"
+            Text="Remove size restrictions" />
+
+        <Button 
+            Clicked="OnSetCustomSize"
+            Text="Set window size to 700x500" />
+
+        <Button 
+            Clicked="OnCenterWindow"
+            Text="Center window" />
+
+    </StackLayout>
+
 </views:BasePage>

src/Controls/samples/Controls.Sample/Pages/Core/MultiWindowPage.xaml.cs

@@ -1,18 +1,17 @@
 using System;
 using Maui.Controls.Sample.Pages.Base;
 using Microsoft.Maui.Controls;
+using Microsoft.Maui.Devices;
 
 namespace Maui.Controls.Sample.Pages
 {
 	public partial class MultiWindowPage : BasePage
 	{
-		static int windowCounter = 1;
-
 		public MultiWindowPage()
 		{
 			InitializeComponent();
 
-			label.Text = "Window Count: " + (windowCounter++).ToString();
+			BindingContext = this;
 		}
 
 		void OnNewWindowClicked(object sender, EventArgs e)
@@ -22,9 +21,42 @@ void OnNewWindowClicked(object sender, EventArgs e)
 
 		void OnCloseWindowClicked(object sender, EventArgs e)
 		{
-			var window = this.GetParentWindow();
-			if (window is not null)
-				Application.Current.CloseWindow(window);
+			Application.Current.CloseWindow(Window);
+		}
+
+		void OnSetMaxSize(object sender, EventArgs e)
+		{
+			Window.MaximumWidth = 800;
+			Window.MaximumHeight = 600;
+		}
+
+		void OnSetMinSize(object sender, EventArgs e)
+		{
+			Window.MinimumWidth = 640;
+			Window.MinimumHeight = 480;
+		}
+
+		void OnSetFreeSize(object sender, EventArgs e)
+		{
+			Window.MaximumWidth = double.PositiveInfinity;
+			Window.MaximumHeight = double.PositiveInfinity;
+
+			Window.MinimumWidth = -1d;
+			Window.MinimumHeight = -1d;
+		}
+
+		void OnSetCustomSize(object sender, EventArgs e)
+		{
+			Window.Width = 700;
+			Window.Height = 500;
+		}
+
+		void OnCenterWindow(object sender, EventArgs e)
+		{
+			var disp = DeviceDisplay.MainDisplayInfo;
+
+			Window.X = (disp.Width / disp.Density - Window.Width) / 2;
+			Window.Y = (disp.Height / disp.Density - Window.Height) / 2;
 		}
 	}
 }

src/Controls/src/Core/HandlerImpl/Window/Window.Impl.cs

@@ -8,6 +8,7 @@
 using System.Threading.Tasks;
 using Microsoft.Maui.Controls.Internals;
 using Microsoft.Maui.Controls.Platform;
+using Microsoft.Maui.Graphics;
 
 namespace Microsoft.Maui.Controls
 {
@@ -25,6 +26,30 @@ public partial class Window : NavigableElement, IWindow, IVisualTreeElement, ITo
 		public static readonly BindableProperty FlowDirectionProperty =
 			BindableProperty.Create(nameof(FlowDirection), typeof(FlowDirection), typeof(Window), FlowDirection.MatchParent, propertyChanging: FlowDirectionChanging, propertyChanged: FlowDirectionChanged);
 
+		public static readonly BindableProperty XProperty = BindableProperty.Create(
+			nameof(X), typeof(double), typeof(Window), Primitives.Dimension.Unset);
+
+		public static readonly BindableProperty YProperty = BindableProperty.Create(
+			nameof(Y), typeof(double), typeof(Window), Primitives.Dimension.Unset);
+
+		public static readonly BindableProperty WidthProperty = BindableProperty.Create(
+			nameof(Width), typeof(double), typeof(Window), Primitives.Dimension.Unset);
+
+		public static readonly BindableProperty HeightProperty = BindableProperty.Create(
+			nameof(Height), typeof(double), typeof(Window), Primitives.Dimension.Unset);
+
+		public static readonly BindableProperty MaximumWidthProperty = BindableProperty.Create(
+			nameof(MaximumWidth), typeof(double), typeof(Window), Primitives.Dimension.Maximum);
+
+		public static readonly BindableProperty MaximumHeightProperty = BindableProperty.Create(
+			nameof(MaximumHeight), typeof(double), typeof(Window), Primitives.Dimension.Maximum);
+
+		public static readonly BindableProperty MinimumWidthProperty = BindableProperty.Create(
+			nameof(MinimumWidth), typeof(double), typeof(Window), Primitives.Dimension.Minimum);
+
+		public static readonly BindableProperty MinimumHeightProperty = BindableProperty.Create(
+			nameof(MinimumHeight), typeof(double), typeof(Window), Primitives.Dimension.Minimum);
+
 		HashSet<IWindowOverlay> _overlays = new HashSet<IWindowOverlay>();
 		ReadOnlyCollection<Element>? _logicalChildren;
 		List<IVisualTreeElement> _visualChildren;
@@ -47,6 +72,8 @@ internal Toolbar? Toolbar
 			}
 		}
 
+		public event EventHandler? SizeChanged;
+
 		public IReadOnlyCollection<IWindowOverlay> Overlays => _overlays.ToList().AsReadOnly();
 
 		public IVisualDiagnosticsOverlay VisualDiagnosticsOverlay { get; }
@@ -86,6 +113,114 @@ public Page? Page
 			set => SetValue(PageProperty, value);
 		}
 
+		public double X
+		{
+			get => (double)GetValue(XProperty);
+			set => SetValue(XProperty, value);
+		}
+
+		public double Y
+		{
+			get => (double)GetValue(YProperty);
+			set => SetValue(YProperty, value);
+		}
+
+		public double Width
+		{
+			get => (double)GetValue(WidthProperty);
+			set => SetValue(WidthProperty, value);
+		}
+
+		public double Height
+		{
+			get => (double)GetValue(HeightProperty);
+			set => SetValue(HeightProperty, value);
+		}
+
+		public double MaximumWidth
+		{
+			get => (double)GetValue(MaximumWidthProperty);
+			set => SetValue(MaximumWidthProperty, value);
+		}
+
+		public double MaximumHeight
+		{
+			get => (double)GetValue(MaximumHeightProperty);
+			set => SetValue(MaximumHeightProperty, value);
+		}
+
+		public double MinimumWidth
+		{
+			get => (double)GetValue(MinimumWidthProperty);
+			set => SetValue(MinimumWidthProperty, value);
+		}
+
+		public double MinimumHeight
+		{
+			get => (double)GetValue(MinimumHeightProperty);
+			set => SetValue(MinimumHeightProperty, value);
+		}
+
+		double IWindow.X => GetPositionCoordinate(XProperty);
+
+		double IWindow.Y => GetPositionCoordinate(YProperty);
+
+		double IWindow.Width => GetSizeCoordinate(WidthProperty);
+
+		double IWindow.Height => GetSizeCoordinate(HeightProperty);
+
+		double IWindow.MaximumWidth => GetSizeCoordinate(MaximumWidthProperty);
+
+		double IWindow.MaximumHeight => GetSizeCoordinate(MaximumHeightProperty);
+
+		double IWindow.MinimumWidth => GetSizeCoordinate(MinimumWidthProperty);
+
+		double IWindow.MinimumHeight => GetSizeCoordinate(MinimumHeightProperty);
+
+		double GetPositionCoordinate(BindableProperty property)
+		{
+			if (!IsSet(property))
+				return Primitives.Dimension.Unset;
+			var coord = (double)GetValue(property);
+			if (!Primitives.Dimension.IsExplicitSet(coord))
+				return Primitives.Dimension.Unset;
+			return coord;
+		}
+
+		double GetSizeCoordinate(BindableProperty property)
+		{
+			if (!IsSet(property))
+				return Primitives.Dimension.Unset;
+			var coord = (double)GetValue(property);
+			if (coord == -1 || !Primitives.Dimension.IsExplicitSet(coord))
+				return Primitives.Dimension.Unset;
+			return ValidatePositive(coord);
+		}
+
+		int _batchFrameUpdate = 0;
+
+		void IWindow.FrameChanged(Rect frame)
+		{
+			if (new Rect(X, Y, Width, Height) == frame)
+				return;
+
+			_batchFrameUpdate++;
+
+			X = frame.X;
+			Y = frame.Y;
+			Width = frame.Width;
+			Height = frame.Height;
+
+			_batchFrameUpdate--;
+			if (_batchFrameUpdate < 0)
+				_batchFrameUpdate = 0;
+
+			if (_batchFrameUpdate == 0)
+			{
+				SizeChanged?.Invoke(this, EventArgs.Empty);
+			}
+		}
+
 		public event EventHandler<ModalPoppedEventArgs>? ModalPopped;
 		public event EventHandler<ModalPoppingEventArgs>? ModalPopping;
 		public event EventHandler<ModalPushedEventArgs>? ModalPushed;
@@ -519,6 +654,11 @@ bool IWindow.BackButtonClicked()
 			return this.Page?.SendBackButtonPressed() ?? false;
 		}
 
+		static double ValidatePositive(double value, [CallerMemberName] string? name = null) =>
+			value >= 0
+				? value
+				: throw new InvalidOperationException($"{name} cannot be less than zero.");
+
 		class NavigationImpl : NavigationProxy
 		{
 			readonly Window _owner;

src/Controls/src/Core/PublicAPI/net-android/PublicAPI.Unshipped.txt

@@ -34,6 +34,23 @@ Microsoft.Maui.Controls.TapGestureRecognizer.Tapped -> System.EventHandler<Micro
 Microsoft.Maui.Controls.TappedEventArgs.Buttons.get -> Microsoft.Maui.Controls.ButtonsMask
 Microsoft.Maui.Controls.ToolTipProperties
 Microsoft.Maui.Controls.ToolTipProperties.ToolTipProperties() -> void
+Microsoft.Maui.Controls.Window.Height.get -> double
+Microsoft.Maui.Controls.Window.Height.set -> void
+Microsoft.Maui.Controls.Window.MaximumHeight.get -> double
+Microsoft.Maui.Controls.Window.MaximumHeight.set -> void
+Microsoft.Maui.Controls.Window.MaximumWidth.get -> double
+Microsoft.Maui.Controls.Window.MaximumWidth.set -> void
+Microsoft.Maui.Controls.Window.MinimumHeight.get -> double
+Microsoft.Maui.Controls.Window.MinimumHeight.set -> void
+Microsoft.Maui.Controls.Window.MinimumWidth.get -> double
+Microsoft.Maui.Controls.Window.MinimumWidth.set -> void
+Microsoft.Maui.Controls.Window.SizeChanged -> System.EventHandler?
+Microsoft.Maui.Controls.Window.Width.get -> double
+Microsoft.Maui.Controls.Window.Width.set -> void
+Microsoft.Maui.Controls.Window.X.get -> double
+Microsoft.Maui.Controls.Window.X.set -> void
+Microsoft.Maui.Controls.Window.Y.get -> double
+Microsoft.Maui.Controls.Window.Y.set -> void
 override Microsoft.Maui.Controls.ContentPresenter.ArrangeOverride(Microsoft.Maui.Graphics.Rect bounds) -> Microsoft.Maui.Graphics.Size
 override Microsoft.Maui.Controls.ContentPresenter.MeasureOverride(double widthConstraint, double heightConstraint) -> Microsoft.Maui.Graphics.Size
 override Microsoft.Maui.Controls.FlyoutPage.OnDisappearing() -> void
@@ -51,6 +68,14 @@ static readonly Microsoft.Maui.Controls.PointerGestureRecognizer.PointerExitedCo
 static readonly Microsoft.Maui.Controls.PointerGestureRecognizer.PointerMovedCommandParameterProperty -> Microsoft.Maui.Controls.BindableProperty!
 static readonly Microsoft.Maui.Controls.PointerGestureRecognizer.PointerMovedCommandProperty -> Microsoft.Maui.Controls.BindableProperty!
 static readonly Microsoft.Maui.Controls.ToolTipProperties.TextProperty -> Microsoft.Maui.Controls.BindableProperty!
+static readonly Microsoft.Maui.Controls.Window.HeightProperty -> Microsoft.Maui.Controls.BindableProperty!
+static readonly Microsoft.Maui.Controls.Window.MaximumHeightProperty -> Microsoft.Maui.Controls.BindableProperty!
+static readonly Microsoft.Maui.Controls.Window.MaximumWidthProperty -> Microsoft.Maui.Controls.BindableProperty!
+static readonly Microsoft.Maui.Controls.Window.MinimumHeightProperty -> Microsoft.Maui.Controls.BindableProperty!
+static readonly Microsoft.Maui.Controls.Window.MinimumWidthProperty -> Microsoft.Maui.Controls.BindableProperty!
+static readonly Microsoft.Maui.Controls.Window.WidthProperty -> Microsoft.Maui.Controls.BindableProperty!
+static readonly Microsoft.Maui.Controls.Window.XProperty -> Microsoft.Maui.Controls.BindableProperty!
+static readonly Microsoft.Maui.Controls.Window.YProperty -> Microsoft.Maui.Controls.BindableProperty!
 virtual Microsoft.Maui.Controls.PointerEventArgs.GetPosition(Microsoft.Maui.Controls.Element? relativeTo) -> Microsoft.Maui.Graphics.Point?
 virtual Microsoft.Maui.Controls.TappedEventArgs.GetPosition(Microsoft.Maui.Controls.Element? relativeTo) -> Microsoft.Maui.Graphics.Point?
 ~Microsoft.Maui.Controls.MenuFlyout.Add(Microsoft.Maui.IMenuElement item) -> void