Added secure field (and examples) on iOS.

sample/HotUI.Samples/MainPage.cs

@@ -25,6 +25,9 @@ namespace HotUI.Samples {
             new MenuItem("ListPage1", ()=> new ListPage()),
             new MenuItem("ListPage2", ()=> new ListPage2()),
             new MenuItem("Insane Diff", ()=> new InsaneDiffPage()),
+            new MenuItem("SecureFieldSample1", ()=> new SecureFieldSample1()),
+            new MenuItem("SecureFieldSample2", ()=> new SecureFieldSample2()),
+            new MenuItem("SecureFieldSample3", ()=> new SecureFieldSample3()),
             new MenuItem("SwiftUI Tutorial Section 1", ()=> new Section1()),
             new MenuItem("SwiftUI Tutorial Section 2", ()=> new Section2()),
             new MenuItem("SwiftUI Tutorial Section 3", ()=> new Section3()),

sample/HotUI.Samples/SecureFieldSample1.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+
+/*
+
+struct ContentView : View {
+    @State private var password: String = ""
+
+    var body: some View {
+        VStack {
+            SecureField("Enter a password", text: $password)
+            Text("You entered: \(password)")
+        }
+    }
+}
+
+*/
+namespace HotUI.Samples
+{
+    public class SecureFieldSample1 : View
+    {
+        /*[State]
+        readonly MyBindingObject state;*/
+
+        readonly State<string> password = new State<string>("");
+        
+        public SecureFieldSample1()
+        {
+            Body = () => new VStack
+            {
+                new SecureField("Enter a password", newValue => password.Value = newValue),
+                new Text(() => $"{password.Value}")
+            };
+        }
+    }
+}

sample/HotUI.Samples/SecureFieldSample2.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+
+/*
+
+struct ContentView : View {
+    @State private var password: String = ""
+
+    var body: some View {
+        VStack {
+            SecureField("Enter a password", text: $password)
+            Text("You entered: \(password)")
+        }
+    }
+}
+
+*/
+namespace HotUI.Samples
+{
+    public class SecureFieldSample2 : View
+    {
+        readonly State<string> password = new State<string>("");
+        
+        public SecureFieldSample2()
+        {
+            Body = () => new VStack
+            {
+                new SecureField("Enter a password", value => password.Value = value),
+                new Text(password.Value)
+            };
+        }
+    }
+}

sample/HotUI.Samples/SecureFieldSample3.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+
+/*
+
+struct ContentView : View {
+    @State private var password: String = ""
+
+    var body: some View {
+        VStack {
+            SecureField("Enter a password", text: $password)
+            Text("You entered: \(password)")
+        }
+    }
+}
+
+*/
+namespace HotUI.Samples
+{
+    public class SecureFieldSample3 : View
+    {
+        readonly State<string> password = new State<string>("");
+        
+        public SecureFieldSample3()
+        {
+            Body = () => new VStack
+            {
+                new SecureField("Enter a password", password),
+                new Text(password)
+            };
+        }
+    }
+}

sample/HotUI.Samples/SecureFieldSample4.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+
+/*
+
+struct ContentView : View {
+    @State private var password: String = ""
+
+    var body: some View {
+        VStack {
+            SecureField("Enter a password", text: $password)
+            Text("You entered: \(password)")
+        }
+    }
+}
+
+*/
+namespace HotUI.Samples
+{
+    public class SecureFieldSample4 : View
+    {
+        readonly State<string> password = "";
+        
+        public SecureFieldSample4()
+        {
+            Body = () => new VStack
+            {
+                new SecureField("Enter a password", password),
+                new Text(password)
+            };
+        }
+    }
+}

src/HotUI.iOS/Handlers/SecureFieldHandler.cs

@@ -0,0 +1,55 @@
+using System;
+using UIKit;
+// ReSharper disable MemberCanBePrivate.Global
+// ReSharper disable ClassNeverInstantiated.Global
+
+namespace HotUI.iOS
+{
+    public class SecureFieldHandler : AbstractHandler<SecureField, UITextField>
+    {
+        public static readonly PropertyMapper<SecureField> Mapper = new PropertyMapper<SecureField>(ViewHandler.Mapper)
+        {
+            [nameof(SecureField.Text)] = MapTextProperty,
+            [nameof(SecureField.Placeholder)] = MapPlaceholderProperty
+        };
+        
+        public SecureFieldHandler() : base(Mapper)
+        {
+
+        }
+
+        protected override UITextField CreateView()
+        {
+            var textField = new UITextField();
+            textField.SecureTextEntry = true;
+            textField.EditingDidEnd += EntryHandler_EditingDidEnd;
+
+            textField.ShouldReturn = s =>
+            {
+                textField.ResignFirstResponder();
+                return true;
+            };
+            
+            return textField;
+        }
+        
+        private void EntryHandler_EditingDidEnd(object sender, EventArgs e)
+        {
+            VirtualView?.OnCommit(TypedNativeView.Text);
+        }
+        
+        public static void MapTextProperty(IViewHandler viewHandler, SecureField virtualView)
+        {
+            var nativeView = (UITextField) viewHandler.NativeView;
+            nativeView.Text = virtualView.Text;
+            nativeView.SizeToFit();
+        }
+        
+        public static void MapPlaceholderProperty(IViewHandler viewHandler, SecureField virtualView)
+        {
+            var nativeView = (UITextField) viewHandler.NativeView;
+            nativeView.Placeholder = virtualView.Placeholder;
+            nativeView.SizeToFit();
+        }
+    }
+}

src/HotUI.iOS/HotUI.iOS.csproj

@@ -50,6 +50,7 @@
     <Compile Include="Extensions\CoreGraphicsExtensions.cs" />
     <Compile Include="Handlers\AbstractLayoutHandler.cs" />
     <Compile Include="Handlers\HStackHandler.cs" />
+    <Compile Include="Handlers\SecureFieldHandler.cs" />
     <Compile Include="Handlers\SpacerHandler.cs" />
     <Compile Include="Handlers\VStackHandler.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />

src/HotUI.iOS/UI.cs

@@ -16,6 +16,7 @@ namespace HotUI.iOS {
 			hasInit = true;
 			Registrar.Handlers.Register<Button, ButtonHandler> ();
 			Registrar.Handlers.Register<TextField, TextFieldHandler> ();
+			Registrar.Handlers.Register<SecureField, SecureFieldHandler>();
 			Registrar.Handlers.Register<Text, TextHandler> ();
             Registrar.Handlers.Register<Toggle, ToggleHandler>();
 			Registrar.Handlers.Register<VStack, VStackHandler> ();

src/HotUI/Controls/SecureField.cs

@@ -0,0 +1,60 @@
+using System;
+namespace HotUI {
+	public class SecureField : View 
+	{
+		public SecureField ()
+		{
+
+		}
+			
+		public SecureField (string placeholder, Action<string> onCommit = null) : base (true)
+		{
+			Placeholder = placeholder;
+			OnCommit = onCommit;
+		}
+		
+		public SecureField (string text = null, string placeholder = null, Action<string> onCommit = null) : base (true)
+		{
+			Text = text;
+			Placeholder = placeholder;
+			OnCommit = onCommit;
+		}
+		
+		public SecureField (Func<string> builder, string placeholder = null, Action<string> onCommit = null )
+		{
+			TextBinding = builder;
+			Placeholder = placeholder;
+			OnCommit = onCommit;
+		}
+
+		string text;
+		public string Text {
+			get => text;
+			private set => this.SetValue (State, ref text, value, ViewPropertyChanged);
+		}
+		
+		public Func<string> TextBinding { get; private set; }
+		protected override void WillUpdateView ()
+		{
+			base.WillUpdateView ();
+			if (TextBinding != null) {
+				State.StartProperty ();
+				var text = TextBinding.Invoke ();
+				var props = State.EndProperty ();
+				var propCount = props.Length;
+				if (propCount > 0) {
+					State.BindingState.AddViewProperty (props, (s,o)=> Text = TextBinding.Invoke());
+				}
+				Text = text;
+			}
+		}
+
+		string placeholder;
+		public string Placeholder {
+			get => placeholder;
+			set => this.SetValue (State, ref placeholder, value, ViewPropertyChanged);
+		}
+		
+		public Action<string> OnCommit { get; set; }
+	}
+}

src/HotUI/State.cs

@@ -17,14 +17,19 @@ namespace HotUI {
 			Value = value;
 		}
 		public State ()
-		{
+		{		
 
 		}
 		public T Value {
 			get => GetProperty<T> ();
 			set => SetProperty (value);
 		}
+		
+		public static implicit operator T(State<T> state) => state.Value;
+		public static implicit operator Action<T>(State<T> state) => value => state.Value = value;
+		public static implicit operator State<T>(T value) => new State<T>(value);
 	}
+	
 	public class StateBuilder : IDisposable {
 		static List<State> currentStates = new List<State> ();
 		public static State CurrentState => currentStates.LastOrDefault ();