Adds public functions to App object:

app.py

@@ -16,21 +16,50 @@ def init_app(self):
         """
         Called as the application is being initialized
         """
-        
+
         tk_multi_workfiles = self.import_module("tk_multi_workfiles")
 
         # register commands:
         self._work_files_handler = tk_multi_workfiles.WorkFiles(self)
         self.engine.register_command("Tank File Manager...", self._work_files_handler.show_dlg)
 
+        self._save_as_handler = tk_multi_workfiles.SaveAs
+        self._versioning_handler = tk_multi_workfiles.Versioning
+
         # other commands are only valid if we have valid work and publish templates:
-        if self.get_template("template_work") and self.get_template("template_publish"):
-            cmd = lambda app=self: tk_multi_workfiles.SaveAs.show_save_as_dlg(app)
+        if self.can_save_as():
+            cmd = lambda app=self: app.show_save_as_dlg()
             self.engine.register_command("Tank Save As...", cmd)
-            
-            cmd = lambda app=self: tk_multi_workfiles.Versioning.show_change_version_dlg(app)
+
+            cmd = lambda app=self: app.show_change_version_dlg()
             self.engine.register_command("Version up Current Scene...", cmd)
-        
+
     def destroy_app(self):
         self.log_debug("Destroying tk-multi-workfiles")
-        self._work_files_handler = None
+        self._work_files_handler = None
+        self._save_as_handler = None
+        self._versioning_handler = None
+
+    def show_save_as_dlg(self):
+        """
+        If save as is available, will show the save as dialog.
+        """
+        if self.can_save_as():
+            return self._save_as_handler.show_save_as_dlg(self)
+        return False
+
+    def show_change_version_dlg(self):
+        """
+        If save as is available, will show the change version dialog.
+        """
+        if self.can_save_as():
+            return self._versioning_handler.show_change_version_dlg(self)
+        return False
+
+    def can_save_as(self):
+        """
+        Returns True if save as is available, False otherwise.
+        """
+        if self.get_template("template_work") and self.get_template("template_publish"):
+            return True
+        return False