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 +1,65 @@
+using Avalonia.Data.Converters;
+using Avalonia.Markup.Xaml;
+
+namespace Toolkit.Foundation.Avalonia
+{
+    public class EventParameterExtension : MarkupExtension, IEventParameter
+    {
+        private readonly IValueConverter? converter;
+
+        private readonly object? converterParameter;
+
+        private readonly string? key;
+        private readonly string? path;
+
+        public EventParameterExtension()
+        {
+
+        }
+
+        public EventParameterExtension(string key, string path)
+        {
+            this.key = key;
+            this.path = path;
+        }
+
+        public EventParameterExtension(string path)
+        {
+            this.path = path;
+        }
+
+        public EventParameterExtension(IValueConverter? converter = null, object? converterParameter = null)
+        {
+            this.converter = converter;
+            this.converterParameter = converterParameter;
+        }
+
+        public List<object> GetValues(EventArgs args)
+        {
+            List<object>? parameters = new();
+
+            dynamic? arguments = args.GetEventArguments(path, converter, converterParameter);
+            if (arguments is not null)
+            {
+                if (arguments is ICollection<object> collection)
+                {
+                    foreach (object? argument in collection)
+                    {
+                        parameters.Add(key is not null ? new KeyValuePair<string, object>(key, (dynamic)argument) : argument);
+                    }
+                }
+                else
+                {
+                    parameters.Add(key is not null ? new KeyValuePair<string, object>(key, arguments) : arguments);
+                }
+            }
+
+            return parameters;
+        }
+
+        public override object ProvideValue(IServiceProvider serviceProvider)
+        {
+            return this;
+        }
+    }
+}