Temporarily disable material listeners as they need to be rewritten anyway (ideally without listeners) with the new style system

At least now we can create types for testing

src/blenderbim/blenderbim/bim/module/model/product.py

@@ -514,6 +514,7 @@ def regenerate_profile_usage(usecase_path, ifc_file, settings):
 
 
 def ensure_material_assigned(usecase_path: str, ifc_file: ifcopenshell.file, settings: dict[str, Any]) -> None:
+    return  # TODO ensure this now works with the new approach of styles
     elements = settings["products"]
     material = settings.get("material")
     if material:
@@ -544,6 +545,7 @@ def ensure_material_assigned(usecase_path: str, ifc_file: ifcopenshell.file, set
 
 
 def ensure_material_unassigned(usecase_path: str, ifc_file: ifcopenshell.file, settings: dict[str, Any]) -> None:
+    return  # TODO ensure this now works with the new approach of styles
     elements = settings["products"]
 
     # unassign_material could be called when product is about to get removed

src/blenderbim/blenderbim/bim/module/project/ui.py

@@ -264,7 +264,6 @@ class BIM_PT_project(Panel):
         row = self.layout.row(align=True)
         row.prop(props, "ifc_file", text="")
         row.operator("bim.select_ifc_file", icon="FILE_FOLDER", text="")
-        row.operator("bim.unload_project", text="", icon="CANCEL")
 
 
 class BIM_PT_new_project_wizard(Panel):

src/blenderbim/blenderbim/bim/module/type/operator.py

@@ -310,7 +310,7 @@ class AddType(bpy.types.Operator, tool.Ifc.Operator):
             if materials:
                 material = materials[0]  # Arbitrarily pick a material
             else:
-                material = self.add_default_material()
+                material = ifcopenshell.api.run("material.add_material", tool.Ifc.get(), name="Unknown")
             rel = ifcopenshell.api.run(
                 "material.assign_material", ifc_file, products=[element], type="IfcMaterialLayerSet"
             )
@@ -344,7 +344,7 @@ class AddType(bpy.types.Operator, tool.Ifc.Operator):
             if materials:
                 material = materials[0]  # Arbitrarily pick a material
             else:
-                material = self.add_default_material()
+                material = ifcopenshell.api.run("material.add_material", tool.Ifc.get(), name="Unknown")
             if template == "PROFILESET":
                 named_profiles = [p for p in ifc_file.by_type("IfcProfileDef") if p.ProfileName]
                 if named_profiles:
@@ -495,13 +495,6 @@ class AddType(bpy.types.Operator, tool.Ifc.Operator):
         props.type_class = props.type_class
         return {"FINISHED"}
 
-    def add_default_material(self):
-        material = ifcopenshell.api.run("material.add_material", tool.Ifc.get(), name="Unknown")
-        blender_material = bpy.data.materials.new(material.Name)
-        tool.Ifc.link(material, blender_material)
-        blender_material.use_fake_user = True
-        return material
-
 
 class RemoveType(bpy.types.Operator, tool.Ifc.Operator):
     bl_idname = "bim.remove_type"