Unity 5.3 support

Author: Siccity

Scripts/Editor/Drawers/NodeEnumDrawer.cs

@@ -24,12 +24,21 @@ public override void OnGUI(Rect position, SerializedProperty property, GUIConten
 			string enumName = "";
 			if (property.enumValueIndex >= 0 && property.enumValueIndex < property.enumDisplayNames.Length) enumName = property.enumDisplayNames[property.enumValueIndex];
 
+#if UNITY_2017_1_OR_NEWER
 			// Display dropdown
 			if (EditorGUI.DropdownButton(position, new GUIContent(enumName), FocusType.Passive)) {
 				// Position is all wrong if we show the dropdown during the node draw phase.
 				// Instead, add it to onLateGUI to display it later.
 				NodeEditorWindow.current.onLateGUI += () => ShowContextMenuAtMouse(property);
 			}
+#else
+			// Display dropdown
+			if (GUI.Button(position, new GUIContent(enumName), "MiniPopup")) {
+				// Position is all wrong if we show the dropdown during the node draw phase.
+				// Instead, add it to onLateGUI to display it later.
+				NodeEditorWindow.current.onLateGUI += () => ShowContextMenuAtMouse(property);
+			}
+#endif
 			EditorGUI.EndProperty();
 		}
 

Scripts/Editor/NodeEditorAction.cs

@@ -289,7 +289,7 @@ public void Controls() {
                 case EventType.KeyDown:
                     if (EditorGUIUtility.editingTextField) break;
                     else if (e.keyCode == KeyCode.F) Home();
-                    if (SystemInfo.operatingSystemFamily == OperatingSystemFamily.MacOSX) {
+                    if (IsMac()) {
                         if (e.keyCode == KeyCode.Return) RenameSelectedNode();
                     } else {
                         if (e.keyCode == KeyCode.F2) RenameSelectedNode();
@@ -300,7 +300,7 @@ public void Controls() {
                     if (e.commandName == "SoftDelete") {
                         if (e.type == EventType.ExecuteCommand) RemoveSelectedNodes();
                         e.Use();
-                    } else if (SystemInfo.operatingSystemFamily == OperatingSystemFamily.MacOSX && e.commandName == "Delete") {
+                    } else if (IsMac() && e.commandName == "Delete") {
                         if (e.type == EventType.ExecuteCommand) RemoveSelectedNodes();
                         e.Use();
                     } else if (e.commandName == "Duplicate") {
@@ -319,6 +319,14 @@ public void Controls() {
             }
         }
 
+        public bool IsMac() {
+#if UNITY_2017_1_OR_NEWER
+            return SystemInfo.operatingSystemFamily == OperatingSystemFamily.MacOSX;
+#else
+            return SystemInfo.operatingSystem.StartsWith("Mac");
+#endif
+        }
+
         private void RecalculateDragOffsets(Event current) {
             dragOffset = new Vector2[Selection.objects.Length + selectedReroutes.Count];
             // Selected nodes