Add project files.

Nodify/Connectors/Events/ConnectorEventArgs.cs

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+using System;
+using System.Windows;
+
+namespace Nodify.Events
+{
+    /// <summary>
+    /// Represents the method that will handle <see cref="Connector"/> related routed events.
+    /// </summary>
+    /// <param name="sender">The object where the event handler is attached.</param>
+    /// <param name="e">The event data.</param>
+    public delegate void ConnectorEventHandler(object sender, ConnectorEventArgs e);
+
+    /// <summary>
+    /// Provides data for <see cref="Nodify.Connector"/> related routed events.
+    /// </summary>
+    public class ConnectorEventArgs : RoutedEventArgs
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ConnectorEventArgs"/> class using the specified <see cref="Connector"/>.
+        /// </summary>
+        /// <param name="connector">The <see cref="FrameworkElement.DataContext"/> of a related <see cref="Nodify.Connector"/>.</param>
+        public ConnectorEventArgs(object connector)
+            => Connector = connector;
+
+        /// <summary>
+        /// Gets or sets the <see cref="Nodify.Connector.Anchor"/> of the <see cref="Nodify.Connector"/> associated with this event.
+        /// </summary>
+        public Point Anchor { get; set; }
+
+        /// <summary>
+        /// Gets the <see cref="FrameworkElement.DataContext"/> of the <see cref="Nodify.Connector"/> associated with this event.
+        /// </summary>
+        public object Connector { get; }
+
+        protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget)
+            => ((ConnectorEventHandler)genericHandler)(genericTarget, this);
+    }
+}

Nodify/Connectors/Events/PendingConnectionEventArgs.cs

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+using System;
+using System.Windows;
+
+namespace Nodify.Events
+{
+    /// <summary>
+    /// Represents the method that will handle <see cref="PendingConnection"/> related routed events.
+    /// </summary>
+    /// <param name="sender">The object where the event handler is attached.</param>
+    /// <param name="e">The event data.</param>
+    public delegate void PendingConnectionEventHandler(object sender, PendingConnectionEventArgs e);
+    
+    /// <summary>
+    /// Provides data for <see cref="PendingConnection"/> related routed events.
+    /// </summary>
+    public class PendingConnectionEventArgs : RoutedEventArgs
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="PendingConnectionEventArgs"/> class using the specified <see cref="SourceConnector"/>.
+        /// </summary>
+        /// <param name="sourceConnector">The <see cref="FrameworkElement.DataContext"/> of a related <see cref="Connector"/>.</param>
+        public PendingConnectionEventArgs(object sourceConnector)
+            => SourceConnector = sourceConnector;
+        
+        /// <summary>
+        /// Gets or sets the <see cref="Connector.Anchor"/> of the <see cref="Connector"/> that raised this event.
+        /// </summary>
+        public Point Anchor { get; set; }
+        
+        /// <summary>
+        /// Gets the <see cref="FrameworkElement.DataContext"/> of the <see cref="Connector"/> that started this <see cref="PendingConnection"/>.
+        /// </summary>
+        public object SourceConnector { get; }
+        
+        /// <summary>
+        /// Gets or sets the <see cref="FrameworkElement.DataContext"/> of the target <see cref="Connector"/> when the <see cref="PendingConnection"/> is completed.
+        /// </summary>
+        public object? TargetConnector { get; set; }
+
+        /// <summary>
+        /// Gets or sets the distance from the <see cref="SourceConnector"/> in the X axis.
+        /// </summary>
+        public double OffsetX { get; set; }
+
+        /// <summary>
+        /// Gets or sets the distance from the <see cref="SourceConnector"/> in the Y axis.
+        /// </summary>
+        public double OffsetY { get; set; }
+
+        /// <summary>
+        /// Gets or sets a value that indicates whether this <see cref="PendingConnection"/> was cancelled.
+        /// </summary>
+        public bool Canceled { get; set; }
+
+        protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget)
+            => ((PendingConnectionEventHandler)genericHandler)(genericTarget, this);
+    }
+}