Refactor: Move BrushAssetShelf to properties_paint_common

Make BrushAssetShelf more easily reusable accross different space_*
UI definition files.

scripts/startup/bl_ui/properties_paint_common.py

@@ -5,6 +5,23 @@
 from bpy.types import Menu
 
 
+class BrushAssetShelf:
+    bl_options = {'DEFAULT_VISIBLE', 'NO_ASSET_DRAG'}
+    bl_default_preview_size = 48
+
+    @classmethod
+    def poll(cls, context):
+        prefs = context.preferences
+        if not prefs.experimental.use_extended_asset_browser:
+            return False
+
+        return context.mode == 'SCULPT'
+
+    @classmethod
+    def asset_poll(cls, asset):
+        return asset.id_type == 'BRUSH'
+
+
 class UnifiedPaintPanel:
     # subclass must set
     # bl_space_type = 'IMAGE_EDITOR'

scripts/startup/bl_ui/space_view3d.py

@@ -13,6 +13,7 @@ from bl_ui.properties_paint_common import (
     brush_basic_texpaint_settings,
     brush_basic_gpencil_weight_settings,
     brush_basic_grease_pencil_weight_settings,
+    BrushAssetShelf,
 )
 from bl_ui.properties_grease_pencil_common import (
     AnnotationDataPanel,
@@ -9083,25 +9084,11 @@ class VIEW3D_PT_viewport_debug(Panel):
         layout.prop(overlay, "use_debug_freeze_view_culling")
 
 
-class VIEW3D_AST_sculpt_brushes(bpy.types.AssetShelf):
+class VIEW3D_AST_sculpt_brushes(BrushAssetShelf, bpy.types.AssetShelf):
     # Experimental: Asset shelf for sculpt brushes, only shows up if both the
     # "Asset Shelf" and the "Extended Asset Browser" experimental features are
     # enabled.
-
-    bl_space_type = 'VIEW_3D'
-    bl_default_preview_size = 48
-
-    @classmethod
-    def poll(cls, context):
-        prefs = context.preferences
-        if not prefs.experimental.use_extended_asset_browser:
-            return False
-
-        return context.mode == 'SCULPT'
-
-    @classmethod
-    def asset_poll(cls, asset):
-        return asset.id_type == 'BRUSH'
+    bl_space_type = "VIEW_3D"
 
 
 classes = (