add a no_popup arg in check layer for autobuild background mode

OP_auto_build.py

@@ -255,7 +255,7 @@ class GPEXP_OT_render_auto_build(bpy.types.Operator):
 
         ## Reset layer states -> 100% opacity (except mask layer 'MA' by default), remove use light, set default blend mode, hide material named "invisible".
         if self.reset_layers_state:
-            bpy.ops.gp.layers_state('EXEC_DEFAULT')
+            bpy.ops.gp.layers_state('EXEC_DEFAULT', no_popup=True)
 
         ## Set GP object data to single user (Individual viewlayers)
         if self.make_gp_single_user:

OP_setup_layers.py

@@ -171,6 +171,9 @@ class GPEXP_OT_layers_state(bpy.types.Operator):
     #     description="Delete view layer that aren't used in the nodetree anymore",
     #     default=True)
 
+    no_popup : BoolProperty(name='No Popup',
+        default=False, description='To use for call in CLI or from other operators', options={'SKIP_SAVE'})
+
     all_objects : BoolProperty(name='On All Object',
         default=True, description='On All object, else use selected objects') # , options={'SKIP_SAVE'}
 
@@ -200,13 +203,13 @@ class GPEXP_OT_layers_state(bpy.types.Operator):
     #     return context.object
 
     def invoke(self, context, event):
-
         ## if no existing infos.json generated, call ops
         l_infos = Path(bpy.data.filepath).parent / 'render' / 'infos.json'
         if not l_infos.exists(): # only if infos not created
             bpy.ops.gp.export_infos_for_compo('INVOKE_DEFAULT')
 
-        # return self.execute(context)
+        if self.no_popup:
+            return self.execute(context)
         return context.window_manager.invoke_props_dialog(self)
 
     def draw(self, context):
@@ -327,6 +330,7 @@ class GPEXP_OT_layers_state(bpy.types.Operator):
                         m.grease_pencil.hide = True
                         changes.append(f'{m.name} material hidden')
 
+        if not self.no_popup:
             fn.show_message_box(_message=changes, _title="Layers Check Report", _icon='INFO')
 
         return {"FINISHED"}