Add Chromium-only Blender WebEngine parity work

blender-5.2.0/scripts/startup/bl_ui/utils.py

@@ -0,0 +1,40 @@
+# SPDX-FileCopyrightText: 2009-2023 Blender Authors
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+from bpy.types import Menu
+
+
+# Panel mix-in class (don't register).
+class PresetPanel:
+    bl_space_type = 'PROPERTIES'
+    bl_region_type = 'HEADER'
+    bl_label = "Presets"
+    path_menu = Menu.path_menu
+
+    @classmethod
+    def draw_panel_header(cls, layout):
+        layout.emboss = 'NONE'
+        layout.popover(
+            panel=cls.__name__,
+            icon='PRESET',
+            text="",
+        )
+
+    @classmethod
+    def draw_menu(cls, layout, text=None):
+        if text is None:
+            text = cls.bl_label
+
+        layout.popover(
+            panel=cls.__name__,
+            icon='PRESET',
+            text=text,
+        )
+
+    def draw(self, context):
+        layout = self.layout
+        layout.emboss = 'PULLDOWN_MENU'
+        layout.operator_context = 'EXEC_DEFAULT'
+
+        Menu.draw_preset(self, context)