Navigation in Avalonia

2022-12-05 19:39:13 +00:00
parent 855a4b98d2
commit 358926a5d4
17 changed files with 1660 additions and 59 deletions
@@ -0,0 +1,42 @@
+using Avalonia.Controls;
+using Avalonia;
+using Avalonia.Data;
+using Avalonia.Markup.Xaml;
+
+namespace Toolkit.Foundation.Avalonia
+{
+    public class ParameterBindingExtension : MarkupExtension, IParameter
+    {
+        private static readonly AttachedProperty<object> ValueProperty =
+            AvaloniaProperty.RegisterAttached<ParameterBindingExtension, Control, object>("Value");
+
+        private readonly Binding? valueBinding;
+
+        public ParameterBindingExtension(string key, object value)
+        {
+            Key = key;
+            valueBinding = value.ToBinding();
+        }
+
+        public string? Key { get; }
+
+        public KeyValuePair<string, object>? GetValue(object target)
+        {
+            if (target is AvaloniaObject avaloniaObject)
+            {
+                if (valueBinding is not null)
+                {
+                    avaloniaObject.Bind(ValueProperty, valueBinding);
+                    return new KeyValuePair<string, object>(Key, (dynamic)avaloniaObject.GetValue(ValueProperty));
+                }
+            }
+
+            return default;
+        }
+
+        public override object ProvideValue(IServiceProvider serviceProvider)
+        {
+            return this;
+        }
+    }
+}