Fix error when displaying a selected but inactive object's properties with the pin feature

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

@@ -31,6 +31,8 @@ class BIM_PT_aggregate(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False

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

@@ -92,6 +92,8 @@ class BIM_PT_object_attributes(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
             return False
         return bool(context.active_object.BIMObjectProperties.ifc_definition_id)

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

@@ -89,6 +89,8 @@ class BIM_PT_classification_references(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
             return False
         return bool(context.active_object.BIMObjectProperties.ifc_definition_id)

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

@@ -76,6 +76,8 @@ class BIM_PT_object_constraints(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
             return False
         return bool(context.active_object.BIMObjectProperties.ifc_definition_id)

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

@@ -80,6 +80,8 @@ class BIM_PT_object_documents(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
             return False
         return bool(context.active_object.BIMObjectProperties.ifc_definition_id)

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

@@ -32,6 +32,8 @@ class BIM_PT_representations(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
             return False
         return IfcStore.get_file()

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

@@ -77,6 +77,8 @@ class BIM_PT_object_groups(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         return IfcStore.get_file() and context.active_object.BIMObjectProperties.ifc_definition_id
 
     def draw(self, context):

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

@@ -52,6 +52,8 @@ class BIM_PT_object_material(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False

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

@@ -32,6 +32,8 @@ class BIM_PT_class(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         return IfcStore.get_file()
 
     def draw(self, context):

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

@@ -77,6 +77,8 @@ class BIM_PT_object_systems(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         return IfcStore.get_file() and context.active_object.BIMObjectProperties.ifc_definition_id
 
     def draw(self, context):

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

@@ -31,6 +31,8 @@ class BIM_PT_type(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         props = context.active_object.BIMObjectProperties
         if not props.ifc_definition_id:
             return False

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

@@ -32,6 +32,8 @@ class BIM_PT_voids(Panel):
 
     @classmethod
     def poll(cls, context):
+        if not context.active_object:
+            return False
         if not IfcStore.get_element(context.active_object.BIMObjectProperties.ifc_definition_id):
             return False
         return IfcStore.get_file()