Fix #4176. Bug where tabbed interface didn't work on new or temporary screens.

src/blenderbim/blenderbim/bim/__init__.py

@@ -115,6 +115,7 @@ classes = [
     prop.ObjProperty,
     prop.Attribute,
     prop.BIMAreaProperties,
+    prop.BIMTabProperties,
     prop.BIMProperties,
     prop.IfcParameter,
     prop.PsetQto,
@@ -206,6 +207,7 @@ def register():
     bpy.app.handlers.load_post.append(handler.loadIfcStore)
     bpy.types.Scene.BIMProperties = bpy.props.PointerProperty(type=prop.BIMProperties)
     bpy.types.Screen.BIMAreaProperties = bpy.props.CollectionProperty(type=prop.BIMAreaProperties)
+    bpy.types.Screen.BIMTabProperties = bpy.props.PointerProperty(type=prop.BIMTabProperties)
     bpy.types.Collection.BIMCollectionProperties = bpy.props.PointerProperty(type=prop.BIMCollectionProperties)
     bpy.types.Object.BIMObjectProperties = bpy.props.PointerProperty(type=prop.BIMObjectProperties)
     bpy.types.Material.BIMObjectProperties = bpy.props.PointerProperty(type=prop.BIMObjectProperties)

src/blenderbim/blenderbim/bim/handler.py

@@ -354,10 +354,4 @@ def load_post(scene):
             bpy.utils.register_class(override_panel)
             bpy.utils.unregister_class(original_panel)
             blenderbim.bim.overridden_scene_panels[panel] = (original_panel, override_panel)
-    # https://blender.stackexchange.com/questions/140644/how-can-make-the-state-of-a-boolean-property-relative-to-the-3d-view-area
-    for screen in bpy.data.screens:
-        if len(screen.BIMAreaProperties) == 20:
-            continue
-        screen.BIMAreaProperties.clear()
-        for i in range(20):  # 20 is an arbitrary value of split areas
-            screen.BIMAreaProperties.add()
+    tool.Blender.setup_tabs()

src/blenderbim/blenderbim/bim/operator.py

@@ -55,7 +55,8 @@ class SetTab(bpy.types.Operator):
     def execute(self, context):
         if context.area.spaces.active.search_filter:
             return {"FINISHED"}
-        aprops = context.screen.BIMAreaProperties[context.screen.areas[:].index(context.area)]
+        tool.Blender.setup_tabs()
+        aprops = tool.Blender.get_area_props(context)
         aprops.tab = self.tab
         return {"FINISHED"}
 
@@ -69,7 +70,8 @@ class SwitchTab(bpy.types.Operator):
     def execute(self, context):
         if context.area.spaces.active.search_filter:
             return {"FINISHED"}
-        aprops = context.screen.BIMAreaProperties[context.screen.areas[:].index(context.area)]
+        tool.Blender.setup_tabs()
+        aprops = tool.Blender.get_area_props(context)
         aprops.tab = aprops.alt_tab
         return {"FINISHED"}
 

src/blenderbim/blenderbim/bim/prop.py

@@ -58,6 +58,13 @@ def update_tab(self, context):
     self.previous_tab = self.tab
 
 
+def update_global_tab(self, context):
+    tool.Blender.setup_tabs()
+    screen = tool.Blender.get_screen(context)
+    aprops = screen.BIMAreaProperties[screen.areas[:].index(context.area)]
+    aprops.tab = self.tab
+
+
 # If we don't cache strings, accents get mangled due to a Blender bug
 # https://blender.stackexchange.com/questions/216230/is-there-a-workaround-for-the-known-bug-in-dynamic-enumproperty
 # https://github.com/IfcOpenShell/IfcOpenShell/pull/1945
@@ -332,6 +339,17 @@ class BIMAreaProperties(PropertyGroup):
     inactive_tab: BoolProperty(default=False, name="Inactive Tab")
 
 
+# BIMAreaProperties exists per area and is setup on load post. However, for new
+# or temporary screens, they may not be setup yet, so this global tab
+# properties is used as a fallback.
+class BIMTabProperties(PropertyGroup):
+    tab: EnumProperty(default=0, items=get_tab, name="Tab", update=update_global_tab)
+    previous_tab: StringProperty(default="PROJECT", name="Previous Tab")
+    alt_tab: StringProperty(default="OBJECT", name="Alt Tab")
+    active_tab: BoolProperty(default=True, name="Active Tab")
+    inactive_tab: BoolProperty(default=False, name="Inactive Tab")
+
+
 class BIMProperties(PropertyGroup):
     schema_dir: StringProperty(
         default=os.path.join(cwd, "schema") + os.path.sep, name="Schema Directory", update=update_schema_dir

src/blenderbim/blenderbim/bim/ui.py

@@ -138,7 +138,11 @@ class BIM_ADDON_preferences(bpy.types.AddonPreferences):
     openlca_port: IntProperty(name="OpenLCA IPC Port", default=8080)
     should_hide_empty_props: BoolProperty(name="Should Hide Empty Properties", default=True)
     should_setup_workspace: BoolProperty(name="Should Setup Workspace Layout for BIM", default=True)
-    should_setup_toolbar: BoolProperty(name="Always Show Toolbar In 3D Viewport", default=True, description="If disabled, the toolbar will only load when an IFC model is active")
+    should_setup_toolbar: BoolProperty(
+        name="Always Show Toolbar In 3D Viewport",
+        default=True,
+        description="If disabled, the toolbar will only load when an IFC model is active",
+    )
     should_play_chaching_sound: BoolProperty(
         name="Should Make A Cha-Ching Sound When Project Costs Updates", default=False
     )
@@ -288,7 +292,10 @@ class BIM_PT_tabs(Panel):
     def draw(self, context):
         try:
             is_ifc_project = bool(tool.Ifc.get())
-            aprops = context.screen.BIMAreaProperties[context.screen.areas[:].index(context.area)]
+            aprops = tool.Blender.get_area_props(context)
+            if not aprops:
+                # Fallback in case areas aren't setup yet.
+                aprops = context.screen.BIMTabProperties
 
             row = self.layout.row()
             row.operator(
@@ -330,7 +337,6 @@ class BIM_PT_tabs(Panel):
                 else:
                     row.prop(aprops, "inactive_tab", text="", icon="BLANK1", emboss=False)
 
-            aprops = context.screen.BIMAreaProperties[context.screen.areas[:].index(context.area)]
             row = self.layout.row(align=True)
             row.prop(aprops, "tab", text="")
         except:

src/blenderbim/blenderbim/tool/blender.py

@@ -42,26 +42,41 @@ class Blender(blenderbim.core.tool.Blender):
     OBJECT_TYPES_THAT_SUPPORT_EDIT_MODE = ("MESH", "CURVE", "SURFACE", "META", "FONT", "LATTICE", "ARMATURE")
     OBJECT_TYPES_THAT_SUPPORT_EDIT_GPENCIL_MODE = ("GPENCIL",)
 
+    @classmethod
+    def get_area_props(cls, context):
+        try:
+            if context.screen.name.endswith("-nonnormal"):  # Ctrl-space temporary fullscreen
+                screen = bpy.data.screens[context.screen.name[0 : -len("-nonnormal")]]
+                # The original area object has its type changed to "EMPTY" apparently
+                index = [a.type for a in screen.areas].index("EMPTY")
+                return screen.BIMAreaProperties[index]
+            return context.screen.BIMAreaProperties[context.screen.areas[:].index(context.area)]
+        except:
+            return
+
     @classmethod
     def set_active_object(cls, obj):
         bpy.context.view_layer.objects.active = obj
         obj.select_set(True)
 
+    @classmethod
+    def setup_tabs(cls):
+        # https://blender.stackexchange.com/questions/140644/how-can-make-the-state-of-a-boolean-property-relative-to-the-3d-view-area
+        for screen in bpy.data.screens:
+            if len(screen.BIMAreaProperties) == 20:
+                continue
+            screen.BIMAreaProperties.clear()
+            for i in range(20):  # 20 is an arbitrary value of split areas
+                screen.BIMAreaProperties.add()
+
     @classmethod
     def is_tab(cls, context, tab):
-        if not len(context.screen.BIMAreaProperties):
-            return None
+        aprops = cls.get_area_props(context)
+        if not aprops:
+            return context.screen.BIMTabProperties.tab == tab
         if context.area.spaces.active.search_filter:
             return True
-        screen_areas = context.screen.areas[:]
-        current_area = context.area
-        # If the user is using the properties panel "Display Filter" search it
-        # will create a new area that's not present in context.screen.areas for
-        # all property tabs except for the active property tab.
-        if current_area not in screen_areas:
-            current_area = next(a for a in context.screen.areas if a.x == current_area.x and a.y == current_area.y)
-        area_index = screen_areas.index(current_area)
-        return context.screen.BIMAreaProperties[area_index].tab == tab
+        return aprops.tab == tab
 
     @classmethod
     def is_default_scene(cls):
@@ -679,7 +694,9 @@ class Blender(blenderbim.core.tool.Blender):
             bpy.utils.register_tool(
                 ws_structural.StructuralTool, after={"bim.spatial_tool"}, separator=False, group=False
             )
-            bpy.utils.register_tool(ws_covering.CoveringTool, after={"bim.structural_tool"}, separator=False, group=False)
+            bpy.utils.register_tool(
+                ws_covering.CoveringTool, after={"bim.structural_tool"}, separator=False, group=False
+            )
         except:
             pass