wip

2024-11-23 21:41:59 +00:00
parent e809c22cb7
commit 911ed375b4
17 changed files with 311 additions and 18 deletions
@@ -0,0 +1,56 @@
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Markup;
+using Toolkit.Foundation;
+
+namespace Toolkit.UI.WinUI;
+
+[ContentProperty(Name = nameof(Conditions))]
+public class ConditionalExpression :
+    DependencyObject,
+    ICondition
+{
+    public static readonly DependencyProperty ConditionsProperty =
+        DependencyProperty.Register(nameof(Conditions),
+            typeof(ConditionCollection), typeof(ConditionalExpression),
+            new PropertyMetadata(new ConditionCollection()));
+
+    public static readonly DependencyProperty ForwardChainingProperty =
+        DependencyProperty.Register(nameof(ForwardChaining),
+            typeof(ForwardChaining), typeof(ConditionalExpression),
+            new PropertyMetadata(ForwardChaining.And));
+
+    public ConditionalExpression()
+    {
+        SetValue(ConditionsProperty, new ConditionCollection());
+    }
+
+    public ConditionCollection Conditions =>
+        (ConditionCollection)GetValue(ConditionsProperty);
+
+    public ForwardChaining ForwardChaining
+    {
+        get => (ForwardChaining)GetValue(ForwardChainingProperty);
+        set => SetValue(ForwardChainingProperty, value);
+    }
+
+    public bool Evaluate()
+    {
+        bool result = false;
+        foreach (var operation in Conditions)
+        {
+            result = operation.Evaluate();
+
+            if (!result && ForwardChaining == ForwardChaining.And)
+            {
+                return false;
+            }
+
+            if (result && ForwardChaining == ForwardChaining.Or)
+            {
+                return true;
+            }
+        }
+
+        return result;
+    }
+}