move override panel methods to tool.Blender

to keep them close, so it will be easier to keep them in sync

src/blenderbim/blenderbim/bim/__init__.py

@@ -307,17 +307,10 @@ def unregister():
             km.keymap_items.remove(kmi)
     addon_keymaps.clear()
 
-    for panel, poll in tuple(original_scene_panels_polls.items()):
-        if poll is None:
-            del panel.poll
-        else:
-            panel.poll = poll
-        # panel might be already unregisterd during blender exit
-        # or if it's addon was disabled
-        if panel.is_registered:
-            # reregister to activate new poll
-            bpy.utils.unregister_class(panel)
-            bpy.utils.register_class(panel)
-        del original_scene_panels_polls[panel]
+    import blenderbim.tool as tool
+
+    # use tuple() as method will be removing keys from dict
+    for panel in tuple(original_scene_panels_polls.keys()):
+        tool.Blender.remove_scene_panel_override(panel)
 
     bpy.app.translations.unregister("blenderbim")

src/blenderbim/blenderbim/bim/handler.py

@@ -255,32 +255,6 @@ def viewport_shading_changed_callback(area):
         bpy.context.scene.BIMStylesProperties.active_style_type = "External"
 
 
-@classmethod
-def poll_check_blender_tab(cls, context):
-    return tool.Blender.is_tab(context, "BLENDER")
-
-
-def override_scene_panel(original_panel: bpy.types.Panel) -> None:
-    polls = blenderbim.bim.original_scene_panels_polls
-
-    # override poll method
-    if not hasattr(original_panel, "poll"):
-        polls[original_panel] = None
-        original_panel.poll = poll_check_blender_tab
-    else:
-        polls[original_panel] = original_panel.poll
-
-        @classmethod
-        def wrapped_poll(cls, context):
-            return polls[cls](context) and poll_check_blender_tab.__func__(cls, context)
-
-        original_panel.poll = wrapped_poll
-
-    # reregister to activate new poll
-    bpy.utils.unregister_class(original_panel)
-    bpy.utils.register_class(original_panel)
-
-
 @persistent
 def load_post(scene):
     global global_subscription_owner
@@ -322,5 +296,5 @@ def load_post(scene):
     for panel in tool.Blender.get_scene_panels_list():
         if panel in blenderbim.bim.original_scene_panels_polls:
             continue
-        override_scene_panel(panel)
+        tool.Blender.override_scene_panel(panel)
     tool.Blender.setup_tabs()

src/blenderbim/blenderbim/tool/blender.py

@@ -934,3 +934,46 @@ class Blender(blenderbim.core.tool.Blender):
 
         assert set(items) == set(final_items), "Sorted list doesn't match original"
         return final_items
+
+    @classmethod
+    def override_scene_panel(cls, original_panel: bpy.types.Panel) -> None:
+        @classmethod
+        def poll_check_blender_tab(cls, context):
+            return tool.Blender.is_tab(context, "BLENDER")
+
+        polls = blenderbim.bim.original_scene_panels_polls
+
+        # override poll method
+        if not hasattr(original_panel, "poll"):
+            polls[original_panel] = None
+            original_panel.poll = poll_check_blender_tab
+        else:
+            polls[original_panel] = original_panel.poll
+
+            @classmethod
+            def wrapped_poll(cls, context):
+                return polls[cls](context) and poll_check_blender_tab.__func__(cls, context)
+
+            original_panel.poll = wrapped_poll
+
+        # reregister to activate new poll
+        bpy.utils.unregister_class(original_panel)
+        bpy.utils.register_class(original_panel)
+
+    @classmethod
+    def remove_scene_panel_override(cls, panel: bpy.types.Panel) -> None:
+        polls = blenderbim.bim.original_scene_panels_polls
+
+        poll = polls[panel]
+        if poll is None:
+            del panel.poll
+        else:
+            panel.poll = poll
+
+        # panel might be already unregistered during blender exit
+        # or if it's addon was disabled
+        if panel.is_registered:
+            # reregister to activate new poll
+            bpy.utils.unregister_class(panel)
+            bpy.utils.register_class(panel)
+        del polls[panel]