[Xwt.Mac] Implement PasswordEntry widget

3 files changed, 96 insertions, 0 deletions

diff --git a/Xwt.Mac/Xwt.Mac.csproj b/Xwt.Mac/Xwt.Mac.csproj
index c7fa2149..331ad68f 100644
--- a/Xwt.Mac/Xwt.Mac.csproj
+++ b/Xwt.Mac/Xwt.Mac.csproj
@@ -124,6 +124,7 @@
     <Compile Include="Xwt.Mac.CellViews\CheckBoxTableCell.cs" />
     <Compile Include="Xwt.Mac\EmbedNativeWidgetBackend.cs" />
     <Compile Include="Xwt.Mac\MacKeyboardHandler.cs" />
+    <Compile Include="Xwt.Mac\PasswordEntryBackend.cs" />
   </ItemGroup>
   <Import Project="..\BuildHelpers.targets" />
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
diff --git a/Xwt.Mac/Xwt.Mac/MacEngine.cs b/Xwt.Mac/Xwt.Mac/MacEngine.cs
index 89fca49c..588a1a2d 100644
--- a/Xwt.Mac/Xwt.Mac/MacEngine.cs
+++ b/Xwt.Mac/Xwt.Mac/MacEngine.cs
@@ -121,6 +121,7 @@ namespace Xwt.Mac
 			RegisterBackend <Xwt.Backends.ISliderBackend, SliderBackend> ();
 			RegisterBackend <Xwt.Backends.IEmbeddedWidgetBackend, EmbedNativeWidgetBackend> ();
 			RegisterBackend <Xwt.Backends.KeyboardHandler, MacKeyboardHandler> ();
+			RegisterBackend <Xwt.Backends.IPasswordEntryBackend, PasswordEntryBackend> ();
 		}
 
 		public override void RunApplication ()
diff --git a/Xwt.Mac/Xwt.Mac/PasswordEntryBackend.cs b/Xwt.Mac/Xwt.Mac/PasswordEntryBackend.cs
new file mode 100644
index 00000000..6cff98ce
--- /dev/null
+++ b/Xwt.Mac/Xwt.Mac/PasswordEntryBackend.cs
@@ -0,0 +1,94 @@
+using System;
+using Xwt.Backends;
+using MonoMac.AppKit;
+
+namespace Xwt.Mac
+{
+	public class PasswordEntryBackend : ViewBackend<NSView, IPasswordEntryEventSink>, IPasswordEntryBackend
+	{
+		public PasswordEntryBackend ()
+		{
+		}
+
+		public override void Initialize ()
+		{
+			base.Initialize ();
+			ViewObject = new CustomAlignedContainer (new CustomSecureTextField (EventSink, ApplicationContext));
+		}
+
+		protected override void OnSizeToFit ()
+		{
+			Container.SizeToFit ();
+		}
+
+		CustomAlignedContainer Container {
+			get { return (CustomAlignedContainer)base.Widget; }
+		}
+
+		public new NSSecureTextField Widget {
+			get { return (NSSecureTextField)Container.Child; }
+		}
+
+		protected override Size GetNaturalSize ()
+		{
+			var s = base.GetNaturalSize ();
+			return new Size (EventSink.GetDefaultNaturalSize ().Width, s.Height);
+		}
+
+		public string Password {
+			get {
+				return Widget.StringValue;
+			}
+			set {
+				Widget.StringValue = value ?? string.Empty;
+			}
+		}
+
+		public System.Security.SecureString SecurePassword {
+			get {
+				return null;
+			}
+		}
+
+		public string PlaceholderText {
+			get {
+				return ((NSTextFieldCell)Widget.Cell).PlaceholderString;
+			}
+			set {
+				((NSTextFieldCell)Widget.Cell).PlaceholderString = value ?? string.Empty;
+			}
+		}
+	}
+
+	class CustomSecureTextField : NSSecureTextField, IViewObject
+	{
+		IPasswordEntryEventSink eventSink;
+		ApplicationContext context;
+
+		public CustomSecureTextField (IPasswordEntryEventSink eventSink, ApplicationContext context)
+		{
+			this.context = context;
+			this.eventSink = eventSink;
+			Activated += (sender, e) => context.InvokeUserCode (delegate {
+				eventSink.OnActivated ();
+			});
+		}
+
+		public NSView View {
+			get {
+				return this;
+			}
+		}
+
+		public ViewBackend Backend { get; set; }
+
+		public override void DidChange (MonoMac.Foundation.NSNotification notification)
+		{
+			base.DidChange (notification);
+			context.InvokeUserCode (delegate {
+				eventSink.OnChanged ();
+			});
+		}
+	}
+}
+