grpc: added set session user call, updated mobility to look for files within new gui as well, fixed pygui issue when start session has a grpc exceptions, showing and empty error window

daemon/core/gui/coreclient.py

@@ -1,6 +1,7 @@
 """
 Incorporate grpc into python tkinter GUI
 """
+import getpass
 import json
 import logging
 import os
@@ -71,6 +72,7 @@ class CoreClient:
         self.default_services: Dict[NodeType, Set[str]] = {}
         self.emane_models: List[str] = []
         self.observer: Optional[str] = None
+        self.user = getpass.getuser()
 
         # loaded configuration data
         self.servers: Dict[str, CoreServer] = {}
@@ -289,6 +291,9 @@ class CoreClient:
                 self.session_id, self.handle_events
             )
 
+            # set session user
+            self.client.set_session_user(self.session_id, self.user)
+
             # get session service defaults
             response = self.client.get_service_defaults(self.session_id)
             self.default_services = {

daemon/core/gui/data/xmls/sample1.xml

@@ -188,7 +188,7 @@
       <configuration name="error" value="0"/>
     </mobility_configuration>
     <mobility_configuration node="10" model="ns2script">
-      <configuration name="file" value="/home/developer/.coretk/mobility/sample1.scen"/>
+      <configuration name="file" value="sample1.scen"/>
       <configuration name="refresh_ms" value="50"/>
       <configuration name="loop" value="1"/>
       <configuration name="autostart" value="5"/>

daemon/core/gui/toolbar.py

@@ -305,7 +305,7 @@ class Toolbar(ttk.Frame):
             self.set_runtime()
             self.app.core.set_metadata()
             self.app.core.show_mobility_players()
-        else:
+        elif response.exceptions:
             enable_buttons(self.design_frame, enabled=True)
             message = "\n".join(response.exceptions)
             self.app.show_error("Start Session Error", message)