853: Extended possible observer references fqns

Author: bohdan-harniuk

src/com/magento/idea/magento2plugin/actions/generation/CreateAnObserverAction.java

@@ -139,7 +139,8 @@ private boolean checkIsEventDispatchMethod(final MethodReference element) {
 
         return Observer.INTERFACE.equals(fqn)
                 || Observer.IMPLEMENTATION.equals(fqn)
-                || Observer.ENTITY_IMPL.equals(fqn);
+                || Observer.ENTITY_IMPL.equals(fqn)
+                || Observer.STAGING_IMPL.equals(fqn);
     }
 
     private boolean checkIsElementStringLiteral(final @NotNull PsiElement element) {

src/com/magento/idea/magento2plugin/magento/files/Observer.java

@@ -14,6 +14,7 @@ public class Observer implements ModuleFileInterface {
     public static final String INTERFACE = "Magento\\Framework\\Event\\ManagerInterface";
     public static final String IMPLEMENTATION = "Magento\\Framework\\Event\\Manager";
     public static final String ENTITY_IMPL = "Magento\\Framework\\EntityManager\\EventManager";
+    public static final String STAGING_IMPL = "Magento\\Staging\\Model\\Event\\Manager";
     public static final String DISPATCH_METHOD = "dispatch";
     public static final String NAME_ATTRIBUTE = "name";
     public static final String OBSERVER_EXECUTE_TEMPLATE_NAME = "Magento Observer Execute Method";