[Mac] Inital ObjectName implementation.

1 files changed, 123 insertions, 0 deletions

diff --git a/Xamarin.PropertyEditing.Mac/Controls/PanelHeaderEditorControl.cs b/Xamarin.PropertyEditing.Mac/Controls/PanelHeaderEditorControl.cs
new file mode 100644
index 0000000..aaa4ce3
--- /dev/null
+++ b/Xamarin.PropertyEditing.Mac/Controls/PanelHeaderEditorControl.cs
@@ -0,0 +1,123 @@
+using System;
+using System.Collections;
+using System.ComponentModel;
+using AppKit;
+using Xamarin.PropertyEditing.Mac.Resources;
+using Xamarin.PropertyEditing.ViewModels;
+
+namespace Xamarin.PropertyEditing.Mac
+{
+	internal class PanelHeaderLabelControl : NSView
+	{
+		public const string PanelHeaderLabelIdentifierString = "PanelHeaderLabelIdentifier";
+		public PanelHeaderLabelControl ()
+		{
+			Identifier = PanelHeaderLabelIdentifierString;
+
+			var propertyObjectNameLabel = new UnfocusableTextField {
+				Alignment = NSTextAlignment.Right,
+				StringValue = Properties.Resources.Name + ":",
+				TranslatesAutoresizingMaskIntoConstraints = false,
+			};
+			AddSubview (propertyObjectNameLabel);
+
+			this.DoConstraints (new NSLayoutConstraint[] {
+				propertyObjectNameLabel.ConstraintTo(this, (ol, c) => ol.Top == c.Top),
+				propertyObjectNameLabel.ConstraintTo(this, (ol, c) => ol.Left == c.Left + 182),
+				propertyObjectNameLabel.ConstraintTo(this, (ol, c) => ol.Width == 40),
+				propertyObjectNameLabel.ConstraintTo(this, (ol, c) => ol.Height == PropertyEditorControl.DefaultControlHeight),
+			});
+		}
+	}
+
+	internal class PanelHeaderEditorControl : PropertyEditorControl
+	{
+		private NSTextField propertyObjectName;
+		private PanelViewModel viewModel;
+
+		public PanelHeaderEditorControl (PanelViewModel viewModel)
+		{
+			if (viewModel == null)
+				throw new ArgumentNullException (nameof (viewModel));
+
+			this.viewModel = viewModel;
+			this.viewModel.PropertyChanged += ViewModel_PropertyChanged;
+
+			NSControlSize controlSize = NSControlSize.Small;
+			TranslatesAutoresizingMaskIntoConstraints = false;
+
+			this.propertyObjectName = new NSTextField {
+				ControlSize = controlSize,
+				Font = NSFont.FromFontName (DefaultFontName, DefaultFontSize),
+				PlaceholderString = LocalizationResources.ObjectNamePlaceholder,
+				TranslatesAutoresizingMaskIntoConstraints = false,
+			};
+
+			this.propertyObjectName.Activated += PropertyObjectName_Activated;
+
+			AddSubview (this.propertyObjectName);
+
+			this.DoConstraints (new NSLayoutConstraint[] {
+				this.propertyObjectName.ConstraintTo(this, (on, c) => on.Top == c.Top + 2),
+				this.propertyObjectName.ConstraintTo(this, (on, c) => on.Left == c.Left + 4),
+				this.propertyObjectName.ConstraintTo(this, (on, c) => on.Width == c.Width - 34),
+				this.propertyObjectName.ConstraintTo(this, (on, c) => on.Height == DefaultControlHeight - 3),
+			});
+
+			// We won't enable or show the PropertyButton for the header
+			this.PropertyButton.Enabled = false;
+			this.PropertyButton.Hidden = true;
+
+			UpdateValue ();
+		}
+
+		void PropertyObjectName_Activated (object sender, EventArgs e)
+		{
+			this.viewModel.ObjectName = this.propertyObjectName.StringValue;
+		}
+
+		public override NSView FirstKeyView => this.propertyObjectName;
+
+		public override NSView LastKeyView => this.propertyObjectName;
+
+		protected override void HandleErrorsChanged (object sender, DataErrorsChangedEventArgs e)
+		{
+			UpdateErrorsDisplayed (viewModel.GetErrors (viewModel.GetType ().Name));
+		}
+
+		protected override void SetEnabled ()
+		{
+			this.propertyObjectName.Editable = !this.viewModel.IsObjectNameReadOnly;
+		}
+
+		protected override void UpdateAccessibilityValues ()
+		{
+			this.propertyObjectName.AccessibilityTitle = string.Format (LocalizationResources.AccessibilityObjectName, nameof (viewModel.ObjectName));
+		}
+
+		protected override void UpdateErrorsDisplayed (IEnumerable errors)
+		{
+			if (this.viewModel.HasErrors) {
+				SetErrors (errors);
+			} else {
+				SetErrors (null);
+				SetEnabled ();
+			}
+		}
+
+		protected override void UpdateValue ()
+		{
+			if (this.propertyObjectName != null) {
+				this.propertyObjectName.StringValue = this.viewModel.ObjectName ?? string.Empty;
+				this.propertyObjectName.Editable = !this.viewModel.IsObjectNameReadOnly;
+			}
+		}
+
+		void ViewModel_PropertyChanged (object sender, PropertyChangedEventArgs e)
+		{
+			if ( e.PropertyName == nameof (PanelViewModel.ObjectName)) {
+				UpdateValue ();
+			}
+		}
+	}
+}