Add functionality to navigate to start and end nodes of a connector.

src/DynamoCoreWpf/Properties/Resources.en-US.resx

@@ -3280,6 +3280,12 @@ You can manage this in Preferences -&gt; Security.</value>
   <data name="ContextMenuConnectionsShowAll" xml:space="preserve">
     <value>Show All Wires</value>
   </data>
+  <data name="ConnectorContextMenuHeaderStartNode" xml:space="preserve">
+    <value>Go to Start Node</value>
+  </data>
+  <data name="ConnectorContextMenuHeaderEndNode" xml:space="preserve">
+    <value>Go to End Node</value>
+  </data>
   <data name="ContextMenuNodeConnections" xml:space="preserve">
     <value>Node Connections</value>
   </data>

src/DynamoCoreWpf/Properties/Resources.resx

@@ -3267,6 +3267,12 @@ You can manage this in Preferences -&gt; Security.</value>
   <data name="ContextMenuConnectionsShowAll" xml:space="preserve">
     <value>Show All Wires</value>
   </data>
+  <data name="ConnectorContextMenuHeaderStartNode" xml:space="preserve">
+    <value>Go to Start Node</value>
+  </data>
+  <data name="ConnectorContextMenuHeaderEndNode" xml:space="preserve">
+    <value>Go to End Node</value>
+  </data>
   <data name="ContextMenuNodeConnections" xml:space="preserve">
     <value>Node Connections</value>
   </data>

src/DynamoCoreWpf/ViewModels/Core/ConnectorViewModel.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
 using System.Collections.Specialized;
@@ -17,6 +17,7 @@
 using System.Windows.Media;
 using Dynamo.Graph;
 using DynCmd = Dynamo.Models.DynamoModel;
+using Dynamo.Models;
 
 namespace Dynamo.ViewModels
 {
@@ -666,6 +667,14 @@ model.Start.Owner is null||
         /// Delegate command to trigger a construction of a ContextMenu.
         /// </summary>
         public DelegateCommand InstantiateContextMenuCommand { get; set; }
+        /// <summary>
+        /// Delegate command to focus the view on the start node
+        /// </summary>
+        public DelegateCommand GoToStartNodeCommand { get; set; }
+        /// <summary>
+        /// Delegate command to focus the view on the end node
+        /// </summary>
+        public DelegateCommand GoToEndNodeCommand { get; set; }
 
         /// <summary>
         /// When mouse hovers over connector, if the data coming through the connector is collection of 5 or more,
@@ -867,6 +876,30 @@ private void InstantiateContextMenuCommandExecute(object parameters)
             CreateContextMenu();
         }
 
+        private void GoToStartNodeCommandExecute(object parameters)
+        {
+            var startNodeID = ConnectorModel.Start.Owner.GUID;
+
+            //Select
+            var command = new DynCmd.SelectModelCommand(startNodeID, ModifierKeys.None);
+            workspaceViewModel.DynamoViewModel.ExecuteCommand(command);
+
+            //Focus the node
+            workspaceViewModel.DynamoViewModel.CurrentSpaceViewModel.FocusNodeCommand.Execute(startNodeID.ToString());
+        }
+
+        private void GoToEndNodeCommandExecute(object parameters)
+        {
+            var endNodeID = ConnectorModel.End.Owner.GUID;
+
+            //Select
+            var command = new DynCmd.SelectModelCommand(endNodeID, ModifierKeys.None);
+            workspaceViewModel.DynamoViewModel.ExecuteCommand(command);
+
+            //Focus the node
+            workspaceViewModel.DynamoViewModel.CurrentSpaceViewModel.FocusNodeCommand.Execute(endNodeID.ToString());
+        }
+
         /// <summary>
         /// Helper function ssed for placing (re-placing) connector
         /// pins when a WatchNode is placed in the center of a connector.
@@ -909,6 +942,8 @@ private void InitializeCommands()
             MouseUnhoverCommand = new DelegateCommand(MouseUnhoverCommandExecute, CanRunMouseUnhover);
             PinConnectorCommand = new DelegateCommand(PinConnectorCommandExecute, x => true);
             InstantiateContextMenuCommand = new DelegateCommand(InstantiateContextMenuCommandExecute, CanInstantiateContextMenu);
+            GoToStartNodeCommand = new DelegateCommand(GoToStartNodeCommandExecute, x => true);
+            GoToEndNodeCommand = new DelegateCommand(GoToEndNodeCommandExecute, x => true);
         }
 
         #endregion

src/DynamoCoreWpf/ViewModels/Preview/ConnectorContextMenuViewModel.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Windows;
 using Dynamo.Logging;
 using Dynamo.UI.Commands;
@@ -96,13 +96,23 @@ public override void Dispose()
         /// Alerts ConnectorViewModel to pin the connector
         /// </summary>
         public DelegateCommand PinConnectedSurrogateCommand { get; set; }
+        /// <summary>
+        /// Alerts ConnectorViewModel to focus the view on start node
+        /// </summary>
+        public DelegateCommand GoToStartNodeCommand { get; set; }
+        /// <summary>
+        /// Alerts ConnectorViewModel to focus the view on end node
+        /// </summary>
+        public DelegateCommand GoToEndNodeCommand { get; set; }
 
         private void InitCommands()
         {
             HideConnectorSurrogateCommand = new DelegateCommand(HideConnectorSurrogateCommandExecute, x => true);
             SelectConnectedSurrogateCommand = new DelegateCommand(SelectConnectedSurrogateCommandExecute, x => true);
             BreakConnectionsSurrogateCommand = new DelegateCommand(BreakConnectionsSurrogateCommandExecute, x => true);
             PinConnectedSurrogateCommand = new DelegateCommand(PinConnectedSurrogateCommandExecute, x => true);
+            GoToStartNodeCommand = new DelegateCommand(GoToStartNodeCommandExecute, x => true);
+            GoToEndNodeCommand = new DelegateCommand(GoToEndNodeCommandExecute, x => true);
         }
 
         /// <summary>
@@ -156,6 +166,24 @@ private void PinConnectedSurrogateCommandExecute(object obj)
             Analytics.TrackEvent(Actions.Pin, Categories.ConnectorOperations, "PinWire");
         }
 
+        /// <summary>
+        /// Executes the start node command on connector view model
+        /// </summary>
+        /// <param name="obj"></param>
+        private void GoToStartNodeCommandExecute(object obj)
+        {
+            ViewModel.GoToStartNodeCommand.Execute(null);
+        }
+
+        /// <summary>
+        /// Executes the end node command on connector view model
+        /// </summary>
+        /// <param name="obj"></param>
+        private void GoToEndNodeCommandExecute(object obj)
+        {
+            ViewModel.GoToEndNodeCommand.Execute(null);
+        }
+
         #endregion
 
 

src/DynamoCoreWpf/Views/Core/ConnectorContextMenuView.xaml

@@ -48,6 +48,10 @@
                             </Style>
                         </MenuItem.Style>
                     </MenuItem>
+                    <MenuItem x:Name="StartNode" Header="{x:Static props:Resources.ConnectorContextMenuHeaderStartNode}" 
+                              Command="{Binding GoToStartNodeCommand}"/>
+                    <MenuItem x:Name="EndNode" Header="{x:Static props:Resources.ConnectorContextMenuHeaderEndNode}" 
+                              Command="{Binding GoToEndNodeCommand}"/>
                 </ContextMenu>
         </Button.ContextMenu>
         </Button>

test/DynamoCoreWpfTests/ConnectorContextMenuTests.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Windows.Controls;
@@ -134,6 +134,36 @@ public void ShowAllConnectorFromWorkspaceContextMenuTest()
             Assert.AreEqual(4, hiddenConnectors.Count());
         }
 
+        [Test]
+        public void GoToStartNodeTest()
+        {
+            Open(@"UI/ConnectorContextMenuTestFile.dyn");
+
+            var connectorViewModel = this.ViewModel.CurrentSpaceViewModel.Connectors.First();
+            Assert.AreEqual(connectorViewModel.ConnectorModel.Start.Owner.IsSelected, false);
+
+            connectorViewModel.InstantiateContextMenuCommand.Execute(null);
+            var contextMenuViewModel = connectorViewModel.ConnectorContextMenuViewModel;
+            contextMenuViewModel.GoToStartNodeCommand.Execute(null);
+
+            Assert.AreEqual(connectorViewModel.ConnectorModel.Start.Owner.IsSelected, true);
+        }
+
+        [Test]
+        public void GoToEndNodeTest()
+        {
+            Open(@"UI/ConnectorContextMenuTestFile.dyn");
+
+            var connectorViewModel = this.ViewModel.CurrentSpaceViewModel.Connectors.First();
+            Assert.AreEqual(connectorViewModel.ConnectorModel.End.Owner.IsSelected, false);
+
+            connectorViewModel.InstantiateContextMenuCommand.Execute(null);
+            var contextMenuViewModel = connectorViewModel.ConnectorContextMenuViewModel;
+            contextMenuViewModel.GoToEndNodeCommand.Execute(null);
+
+            Assert.AreEqual(connectorViewModel.ConnectorModel.End.Owner.IsSelected, true);
+        }
+
         /// <summary>
         /// Helper method to select all (nodes) in the current Workspace
         /// </summary>