Fix vertical edge copy

Author: alelievr

Assets/com.alelievr.NodeGraphProcessor/Editor/Views/BaseGraphView.cs

@@ -179,7 +179,17 @@ string SerializeGraphElementsCallback(IEnumerable<GraphElement> elements)
 			var data = new CopyPasteHelper();
 
 			foreach (BaseNodeView nodeView in elements.Where(e => e is BaseNodeView))
+			{
 				data.copiedNodes.Add(JsonSerializer.SerializeNode(nodeView.nodeTarget));
+				foreach (var port in nodeView.nodeTarget.GetAllPorts())
+				{
+					if (port.portData.vertical)
+					{
+						foreach (var edge in port.GetEdges())
+							data.copiedEdges.Add(JsonSerializer.Serialize(edge));
+					}
+				}
+			}
 
 			foreach (GroupView groupView in elements.Where(e => e is GroupView))
 				data.copiedGroups.Add(JsonSerializer.Serialize(groupView.group));

Assets/com.alelievr.NodeGraphProcessor/Runtime/Elements/BaseNode.cs

@@ -715,6 +715,29 @@ public NodePort	GetPort(string fieldName, string identifier)
 			});
 		}
 
+		/// <summary>
+		/// Return all the ports of the node
+		/// </summary>
+		/// <returns></returns>
+		public IEnumerable<NodePort> GetAllPorts()
+		{
+			foreach (var port in inputPorts)
+				yield return port;
+			foreach (var port in outputPorts)
+				yield return port;
+		}
+
+		/// <summary>
+		/// Return all the connected edges of the node
+		/// </summary>
+		/// <returns></returns>
+		public IEnumerable<SerializableEdge> GetAllEdges()
+		{
+			foreach (var port in GetAllPorts())
+				foreach (var edge in port.GetEdges())
+					yield return edge;
+		}
+
 		/// <summary>
 		/// Is the port an input
 		/// </summary>