Support renaming materials by double clicking them in materials ui

Example - https://imgur.com/a/NXr6Ku2

Which is especially important for non-IfcMaterials as they currently don't have their own editing UI (besides when they are applied to some element).

src/blenderbim/blenderbim/bim/module/material/prop.py

@@ -119,8 +119,18 @@ def get_contexts(self, context):
     return MaterialsData.data["contexts"]
 
 
+def update_material_name(self: "Material", context: bpy.types.Context) -> None:
+    ifc_file = tool.Ifc.get()
+    name = self.name
+    material = ifc_file.by_id(self.ifc_definition_id)
+    if material.is_a("IfcMaterialLayerSet"):
+        material.LayerSetName = name
+    else:
+        material.Name = name
+
+
 class Material(PropertyGroup):
-    name: StringProperty(name="Name")
+    name: StringProperty(name="Name", update=update_material_name)
     ifc_definition_id: IntProperty(name="IFC Definition ID")
     is_category: BoolProperty(name="Is Category", default=False)
     is_expanded: BoolProperty(name="Is Expanded", default=False)

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

@@ -348,6 +348,9 @@ class BIM_PT_object_material(Panel):
 
 class BIM_UL_materials(UIList):
     def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
+        mprops = context.scene.BIMMaterialProperties
+        material_type = mprops.material_type
+
         if item:
             row = layout.row(align=True)
 
@@ -363,7 +366,10 @@ class BIM_UL_materials(UIList):
                 row.label(text=item.name)
             else:
                 row.label(text="", icon="BLANK1")
-                row.label(text=item.name, icon="MATERIAL")
+                if material_type == "IfcMaterialList":
+                    row.label(text=item.name, icon="MATERIAL")
+                else:
+                    row.prop(item, "name", text="", icon="MATERIAL", emboss=False)
 
                 row2 = row.row()
                 row2.alignment = "RIGHT"