Merge branch '1052591_FixNewChildAttributeAction' into '2020.1.0'

[Projekt: Entwicklung - Neon][TicketNr.: 1052591][[Eigenschaft] - Button...

See merge request xrm/basic!241

entity/Attribute_entity/Attribute_entity.aod

@@ -323,6 +323,8 @@
           <isObjectAction v="false" />
           <isSelectionAction v="true" />
           <iconId>VAADIN:FILE_TREE_SMALL</iconId>
+          <state>AUTO</state>
+          <stateProcess>%aditoprj%/entity/Attribute_entity/entityfields/attributeactions/children/newchildattribute/stateProcess.js</stateProcess>
         </entityActionField>
       </children>
     </entityActionGroup>

entity/Attribute_entity/entityfields/attributeactions/children/newchildattribute/stateProcess.js

+import("Attribute_lib");
+import("system.result");
+import("system.vars");
+import("system.neon");
+
+if(vars.get("$sys.selection").length == 1 && vars.get("$field.ATTRIBUTE_TYPE") == $AttributeTypes.GROUP.toString())
+    result.string(neon.COMPONENTSTATE_EDITABLE)
+else
+    result.string(neon.COMPONENTSTATE_DISABLED)
\ No newline at end of file