Custom Menus : fix build error due to library update

You can now create differents menus

release/datafiles/userdef/userdef_default.c

@@ -105,6 +105,7 @@ const UserDef U_default = {
 
     .autoexec_paths = {NULL},
     .user_menus = {NULL},
+    .user_menus_group = {NULL},
 
     .keyconfigstr = "blender",
     .undosteps = 32,
@@ -234,5 +235,9 @@ const UserDef U_default = {
     .runtime =
         {
             .is_dirty = 0,
+
+            .um_space_select = 1,
+            .um_context_select = 0,
+            .um_item_select = NULL,
         },
 };

release/scripts/modules/rna_user_menus_ui.py

@@ -0,0 +1,294 @@
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software Foundation,
+#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+# <pep8 compliant>
+
+__all__ = (
+    "draw_user_menus",
+)
+
+import bpy
+from bpy.app.translations import pgettext_iface as iface_
+from bpy.app.translations import contexts as i18n_contexts
+
+def _indented_layout(layout, level):
+    indentpx = 16
+    if level == 0:
+        level = 0.0001   # Tweak so that a percentage of 0 won't split by half
+    indent = level * indentpx / bpy.context.region.width
+
+    split = layout.split(factor=indent)
+    col = split.column()
+    col = split.column()
+    return col
+
+def get_keymap(context, idname, ensure):
+    prefs = context.preferences
+    um = prefs.user_menus
+
+    if not idname:
+        idname = um.active_group.idname
+
+    for km in context.window_manager.keyconfigs.user.keymaps:
+        for kmi in km.keymap_items:
+            if kmi.idname == "wm.call_user_menu":
+                if kmi.properties.name == idname:
+                    return kmi
+    if ensure:
+        km = context.window_manager.keyconfigs.user.keymaps['Window']
+        kmi = km.keymap_items.new("wm.call_user_menu",'NONE', 'ANY', shift=False, ctrl=False, alt=False)
+        kmi.properties.idname = idname
+        kmi.active = True
+        return kmi
+
+def draw_button(context, box, item, index):
+    prefs = context.preferences
+    um = prefs.user_menus
+
+    name = item.name
+    if name == "":
+        name = " "
+    item.is_selected = item == um.active_item
+    col = box.column(align=True)
+    row = col.row(align=True)
+    if item.type == "SEPARATOR":
+        name = "___________"
+    #icons = bpy.types.UILayout.bl_rna.functions["prop"].parameters["icon"].enum_items.keys()
+    #selected_icon = icons[item.icon]
+    row.prop(item, "is_selected", icon=item.icon, text=name, toggle=1)
+    if item.type == "SUBMENU":
+        sm = item.get_submenu()
+        if um.active_group.type == "PIE" and index >= 0:
+            row.operator("preferences.pie_menuitem_add", text="", icon='ADD').index = index
+            row.operator("preferences.menuitem_remove", text="", icon='REMOVE')
+            row.operator("preferences.menuitem_up", text="", icon='TRIA_UP')
+            row.operator("preferences.menuitem_down", text="", icon='TRIA_DOWN')
+        sub_box = col.box()
+        sub_box = sub_box.column(align=True)
+        draw_item(context, sub_box, sm.items_list)
+
+def draw_item(context, box, items):
+    for umi in items:
+        draw_button(context, box, umi, -1)
+
+def draw_item_box(context, row):
+    prefs = context.preferences
+    um = prefs.user_menus
+
+    box_line = row.box()
+    box_col = box_line.column(align=True)
+
+    has_item = um.has_item()
+    if not has_item:
+        box_col.label(text="none")
+    else:
+        draw_item(context, box_col, um.get_current_menu().menu_items)
+
+    row = row.split(factor=0.9, align=True)
+    col = row.column(align=True)
+
+    col.operator("preferences.menuitem_add", text="", icon='ADD').index = -1
+    col.operator("preferences.menuitem_remove", text="", icon='REMOVE')
+    col.operator("preferences.menuitem_up", text="", icon='TRIA_UP')
+    col.operator("preferences.menuitem_down", text="", icon='TRIA_DOWN')
+    row.separator()
+
+def draw_pie_item(context, col, items, label, index):
+    row = col.row()
+    row.label(text=label)
+    draw_button(context, row, items, index)
+
+def draw_pie(context, row):
+    prefs = context.preferences
+    um = prefs.user_menus
+
+    cm = um.get_current_menu()
+    if not cm:
+        return
+    col = row.column()
+    draw_pie_item(context, col, cm.menu_items[0], "Left : ", 0)
+    draw_pie_item(context, col, cm.menu_items[1], "Right : ", 1)
+    draw_pie_item(context, col, cm.menu_items[2], "Down : ", 2)
+    draw_pie_item(context, col, cm.menu_items[3], "Up : ", 3)
+    draw_pie_item(context, col, cm.menu_items[4], "Upper left : ", 4)
+    draw_pie_item(context, col, cm.menu_items[5], "Upper right : ", 5)
+    draw_pie_item(context, col, cm.menu_items[6], "Lower left : ", 6)
+    draw_pie_item(context, col, cm.menu_items[7], "Lower right : ", 7)
+    row.separator()
+        
+
+def draw_item_editor(context, row):
+    prefs = context.preferences
+    um = prefs.user_menus
+
+    col = row.column()
+
+    has_item = um.has_item()
+    current = um.active_item
+    if not has_item:
+        col.label(text="No item in this list.")
+        col.label(text="Add one or choose another list to get started")
+    elif current:
+        col.prop(current, "type")
+        if (current.type != "SEPARATOR"):
+            rowsub = col.row(align=True)
+            rowsub.prop(current, "icon", icon=current.icon, text="")
+            col.prop(current, "name")
+        if (current.type == "OPERATOR"):
+            umi_op = current.get_operator()
+            col.prop(umi_op, "operator")
+            box = col.box()
+            box.template_user_menu_item_properties(umi_op)
+        if (current.type == "MENU"):
+            umi_pm = current.get_menu()
+            col.prop(umi_pm, "id_name", text="ID name")
+        if (current.type == "PROPERTY"):
+            umi_prop = current.get_property()
+            col.prop(umi_prop, "id_name")
+            col.prop(umi_prop, "context")
+    else:
+        col.label(text="No item selected.")
+
+def draw_user_menu_preference_expanded(context, layout, kmi, map_type):
+    prefs = context.preferences
+    um = prefs.user_menus
+
+    box = layout.box()
+    sub = box.row()
+
+    if kmi:
+        if map_type not in {'TEXTINPUT', 'TIMER'}:
+            sub = box.column()
+            subrow = sub.row(align=True)
+
+            if map_type == 'KEYBOARD':
+                subrow.prop(kmi, "type", text="", event=True)
+                subrow.prop(kmi, "value", text="")
+                subrow_repeat = subrow.row(align=True)
+                subrow_repeat.active = kmi.value in {'ANY', 'PRESS'}
+                subrow_repeat.prop(kmi, "repeat", text="Repeat")
+            elif map_type in {'MOUSE', 'NDOF'}:
+                subrow.prop(kmi, "type", text="")
+                subrow.prop(kmi, "value", text="")
+
+            subrow = sub.row()
+            subrow.scale_x = 0.75
+            subrow.prop(kmi, "any", toggle=True)
+            subrow.prop(kmi, "shift", toggle=True)
+            subrow.prop(kmi, "ctrl", toggle=True)
+            subrow.prop(kmi, "alt", toggle=True)
+            subrow.prop(kmi, "oskey", text="Cmd", toggle=True)
+            subrow.prop(kmi, "key_modifier", text="", event=True)
+    else:
+        sub.label(text="No key set")
+
+def draw_user_menu_preference(context, layout):
+    prefs = context.preferences
+    um = prefs.user_menus
+    umg = um.active_group
+    kmi = get_keymap(context, None, False)
+    map_type = None
+
+    box = layout.box()
+    row = box.row()
+
+    row.prop(um, "expanded", text="", emboss=False)
+
+    qf = um.menus[0]
+    if umg != qf:
+        row.prop(umg, "name")
+        pie_text = "List"
+        if umg.type == "PIE":
+            pie_text = "Pie"
+        row.prop(umg, "type", text=pie_text, expand=True)
+    if kmi:
+        row.prop(kmi, "map_type", text="")
+        map_type = kmi.map_type
+        if map_type == 'KEYBOARD':
+            row.prop(kmi, "type", text="", full_event=True)
+        elif map_type == 'MOUSE':
+            row.prop(kmi, "type", text="", full_event=True)
+        elif map_type == 'NDOF':
+            row.prop(kmi, "type", text="", full_event=True)
+        elif map_type == 'TWEAK':
+            subrow = row.row()
+            subrow.prop(kmi, "type", text="")
+            subrow.prop(kmi, "value", text="")
+        elif map_type == 'TIMER':
+            row.prop(kmi, "type", text="")
+        else:
+            row.label()
+
+    if um.expanded:
+        draw_user_menu_preference_expanded(context=context, layout=box, kmi=kmi, map_type=map_type)
+
+
+def menu_id(context, umg):
+    prefs = context.preferences
+    um = prefs.user_menus
+
+    i = 0
+    for item in um.menus:
+        if item == umg:
+            return i
+        i = i + 1
+    return -1
+
+
+def draw_user_menus(context, layout):
+    prefs = context.preferences
+    um = prefs.user_menus
+
+    if not um.active_group:
+        um.active_group = um.menus[0]
+
+    split = layout.split(factor=0.4)
+
+    row = split.row()
+
+    rowsub = row.row(align=True)
+    rowsub.menu("USERPREF_MT_menu_select", text=um.active_group.name)
+    rowsub.operator("preferences.usermenus_add", text="", icon='ADD')
+    rowsub.operator("preferences.usermenus_remove", text="", icon='REMOVE')
+
+    rowsub = split.row(align=True)
+    rowsub.prop(um, "space_selected", text="")
+
+    rowsub = split.row(align=True)
+    rowsub.prop(um, "context_selected", text="")
+
+    #rowsub = split.row(align=True)
+    #rowsub.operator("preferences.keyconfig_import", text="", icon='IMPORT')
+    #rowsub.operator("preferences.keyconfig_export", text="", icon='EXPORT')
+
+    row = layout.row()
+    row.separator()
+
+    draw_user_menu_preference(context=context, layout=row)
+
+    row = layout.row()
+    row.separator()
+
+    if um.active_group.type == "PIE":
+        draw_pie(context=context, row=row)
+    else:
+        draw_item_box(context=context, row=row)
+    draw_item_editor(context=context, row=row)
+
+    row.separator()
+

release/scripts/presets/keyconfig/keymap_data/blender_default.py

@@ -157,6 +157,8 @@ def op_menu(menu, kmi_args):
 def op_menu_pie(menu, kmi_args):
     return ("wm.call_menu_pie", kmi_args, {"properties": [("name", menu)]})
 
+def op_user_menu(menu, kmi_args):
+    return ("wm.call_user_menu", kmi_args, {"properties": [("name", menu)]})
 
 def op_panel(menu, kmi_args, kmi_data=()):
     return ("wm.call_panel", kmi_args, {"properties": [("name", menu), *kmi_data]})
@@ -407,7 +409,7 @@ def km_window(params):
         ("wm.quit_blender", {"type": 'Q', "value": 'PRESS', "ctrl": True}, None),
 
         # Quick menu and toolbar
-        op_menu("SCREEN_MT_user_menu", {"type": 'Q', "value": 'PRESS'}),
+        op_user_menu("QUICK_FAVORITES", {"type": 'Q', "value": 'PRESS'}),
 
         # Fast editor switching
         *(

release/scripts/presets/keyconfig/keymap_data/industry_compatible_data.py

@@ -67,6 +67,8 @@ def op_menu(menu, kmi_args):
 def op_menu_pie(menu, kmi_args):
     return ("wm.call_menu_pie", kmi_args, {"properties": [("name", menu)]})
 
+def op_user_menu(menu, kmi_args):
+    return ("wm.call_user_menu", kmi_args, {"properties": [("name", menu)]})
 
 def op_panel(menu, kmi_args, kmi_data=()):
     return ("wm.call_panel", kmi_args, {"properties": [("name", menu), *kmi_data]})
@@ -210,7 +212,7 @@ def km_window(params):
         ("wm.quit_blender", {"type": 'Q', "value": 'PRESS', "ctrl": True}, None),
 
         # Quick menu and toolbar
-        op_menu("SCREEN_MT_user_menu", {"type": 'TAB', "value": 'PRESS', "shift": True}),
+        op_user_menu("QUICK_FAVORITES", {"type": 'Q', "value": 'PRESS'}),
 
         # NDOF settings
         op_panel("USERPREF_PT_ndof_settings", {"type": 'NDOF_BUTTON_MENU', "value": 'PRESS'}),

release/scripts/startup/bl_operators/presets.py

@@ -602,7 +602,6 @@ class AddPresetOperator(AddPresetBase, Operator):
         prefix, suffix = operator.split("_OT_", 1)
         return os.path.join("operator", "%s.%s" % (prefix.lower(), suffix))
 
-
 class WM_MT_operator_presets(Menu):
     bl_label = "Operator Presets"
 

release/scripts/startup/bl_operators/userpref.py

@@ -51,6 +51,8 @@ def module_filesystem_remove(path_base, module_name):
 
 # This duplicates shutil.copytree from Python 3.8, with the new dirs_exist_ok
 # argument that we need. Once we upgrade to 3.8 we can remove this.
+
+
 def _preferences_copytree(entries, src, dst):
     import os
     import shutil
@@ -85,11 +87,13 @@ def _preferences_copytree(entries, src, dst):
         raise Error(errors)
     return dst
 
+
 def preferences_copytree(src, dst):
     import os
     with os.scandir(src) as entries:
         return _preferences_copytree(entries=entries, src=src, dst=dst)
 
+
 class PREFERENCES_OT_keyconfig_activate(Operator):
     bl_idname = "preferences.keyconfig_activate"
     bl_label = "Activate Keyconfig"
@@ -241,7 +245,8 @@ class PREFERENCES_OT_keyconfig_import(Operator):
 
         config_name = basename(self.filepath)
 
-        path = bpy.utils.user_resource('SCRIPTS', os.path.join("presets", "keyconfig"), create=True)
+        path = bpy.utils.user_resource(
+            'SCRIPTS', os.path.join("presets", "keyconfig"), create=True)
         path = os.path.join(path, config_name)
 
         try:
@@ -460,7 +465,8 @@ class PREFERENCES_OT_addon_enable(Operator):
             err_str = traceback.format_exc()
             print(err_str)
 
-        mod = addon_utils.enable(self.module, default_set=True, handle_error=err_cb)
+        mod = addon_utils.enable(
+            self.module, default_set=True, handle_error=err_cb)
 
         if mod:
             info = addon_utils.module_bl_info(mod)
@@ -544,7 +550,8 @@ class PREFERENCES_OT_theme_install(Operator):
 
         xmlfile = self.filepath
 
-        path_themes = bpy.utils.user_resource('SCRIPTS', "presets/interface_theme", create=True)
+        path_themes = bpy.utils.user_resource(
+            'SCRIPTS', "presets/interface_theme", create=True)
 
         if not path_themes:
             self.report({'ERROR'}, "Failed to get themes path")
@@ -554,7 +561,8 @@ class PREFERENCES_OT_theme_install(Operator):
 
         if not self.overwrite:
             if os.path.exists(path_dest):
-                self.report({'WARNING'}, "File already installed to %r\n" % path_dest)
+                self.report(
+                    {'WARNING'}, "File already installed to %r\n" % path_dest)
                 return {'CANCELLED'}
 
         try:
@@ -638,7 +646,8 @@ class PREFERENCES_OT_addon_install(Operator):
 
         if self.target == 'DEFAULT':
             # don't use bpy.utils.script_paths("addons") because we may not be able to write to it.
-            path_addons = bpy.utils.user_resource('SCRIPTS', "addons", create=True)
+            path_addons = bpy.utils.user_resource(
+                'SCRIPTS', "addons", create=True)
         else:
             path_addons = context.preferences.filepaths.script_directory
             if path_addons:
@@ -661,7 +670,8 @@ class PREFERENCES_OT_addon_install(Operator):
         pyfile_dir = os.path.dirname(pyfile)
         for addon_path in addon_utils.paths():
             if os.path.samefile(pyfile_dir, addon_path):
-                self.report({'ERROR'}, "Source file is in the add-on search path: %r" % addon_path)
+                self.report(
+                    {'ERROR'}, "Source file is in the add-on search path: %r" % addon_path)
                 return {'CANCELLED'}
         del addon_path
         del pyfile_dir
@@ -684,7 +694,8 @@ class PREFERENCES_OT_addon_install(Operator):
                 for f in file_to_extract.namelist():
                     path_dest = os.path.join(path_addons, os.path.basename(f))
                     if os.path.exists(path_dest):
-                        self.report({'WARNING'}, "File already installed to %r\n" % path_dest)
+                        self.report(
+                            {'WARNING'}, "File already installed to %r\n" % path_dest)
                         return {'CANCELLED'}
 
             try:  # extract the file to "addons"
@@ -699,7 +710,8 @@ class PREFERENCES_OT_addon_install(Operator):
             if self.overwrite:
                 module_filesystem_remove(path_addons, os.path.basename(pyfile))
             elif os.path.exists(path_dest):
-                self.report({'WARNING'}, "File already installed to %r\n" % path_dest)
+                self.report(
+                    {'WARNING'}, "File already installed to %r\n" % path_dest)
                 return {'CANCELLED'}
 
             # if not compressed file just copy into the addon path
@@ -709,7 +721,8 @@ class PREFERENCES_OT_addon_install(Operator):
                 traceback.print_exc()
                 return {'CANCELLED'}
 
-        addons_new = {mod.__name__ for mod in addon_utils.modules()} - addons_old
+        addons_new = {mod.__name__ for mod in addon_utils.modules()} - \
+            addons_old
         addons_new.discard("modules")
 
         # disable any addons we may have enabled previously and removed.
@@ -779,7 +792,8 @@ class PREFERENCES_OT_addon_remove(Operator):
 
         path, isdir = PREFERENCES_OT_addon_remove.path_from_addon(self.module)
         if path is None:
-            self.report({'WARNING'}, "Add-on path %r could not be found" % path)
+            self.report(
+                {'WARNING'}, "Add-on path %r could not be found" % path)
             return {'CANCELLED'}
 
         # in case its enabled
@@ -925,9 +939,11 @@ class PREFERENCES_OT_app_template_install(Operator):
                     module_filesystem_remove(path_app_templates, f)
             else:
                 for f in file_to_extract.namelist():
-                    path_dest = os.path.join(path_app_templates, os.path.basename(f))
+                    path_dest = os.path.join(
+                        path_app_templates, os.path.basename(f))
                     if os.path.exists(path_dest):
-                        self.report({'WARNING'}, "File already installed to %r\n" % path_dest)
+                        self.report(
+                            {'WARNING'}, "File already installed to %r\n" % path_dest)
                         return {'CANCELLED'}
 
             try:  # extract the file to "bl_app_templates_user"
@@ -941,7 +957,8 @@ class PREFERENCES_OT_app_template_install(Operator):
             self.report({'WARNING'}, "Expected a zip-file %r\n" % filepath)
             return {'CANCELLED'}
 
-        app_templates_new = set(os.listdir(path_app_templates)) - app_templates_old
+        app_templates_new = set(os.listdir(
+            path_app_templates)) - app_templates_old
 
         # in case a new module path was created to install this addon.
         bpy.utils.refresh_script_paths()
@@ -1001,14 +1018,17 @@ class PREFERENCES_OT_studiolight_install(Operator):
         prefs = context.preferences
 
         path_studiolights = os.path.join("studiolights", self.type.lower())
-        path_studiolights = bpy.utils.user_resource('DATAFILES', path_studiolights, create=True)
+        path_studiolights = bpy.utils.user_resource(
+            'DATAFILES', path_studiolights, create=True)
         if not path_studiolights:
             self.report({'ERROR'}, "Failed to create Studio Light path")
             return {'CANCELLED'}
 
         for e in self.files:
-            shutil.copy(os.path.join(self.directory, e.name), path_studiolights)
-            prefs.studio_lights.load(os.path.join(path_studiolights, e.name), self.type)
+            shutil.copy(os.path.join(self.directory, e.name),
+                        path_studiolights)
+            prefs.studio_lights.load(os.path.join(
+                path_studiolights, e.name), self.type)
 
         # print message
         msg = (
@@ -1047,7 +1067,8 @@ class PREFERENCES_OT_studiolight_new(Operator):
         wm = context.window_manager
         filename = bpy.path.ensure_ext(self.filename, ".sl")
 
-        path_studiolights = bpy.utils.user_resource('DATAFILES', os.path.join("studiolights", "studio"), create=True)
+        path_studiolights = bpy.utils.user_resource(
+            'DATAFILES', os.path.join("studiolights", "studio"), create=True)
         if not path_studiolights:
             self.report({'ERROR'}, "Failed to get Studio Light path")
             return {'CANCELLED'}
@@ -1060,7 +1081,8 @@ class PREFERENCES_OT_studiolight_new(Operator):
             else:
                 for studio_light in prefs.studio_lights:
                     if studio_light.name == filename:
-                        bpy.ops.preferences.studiolight_uninstall(index=studio_light.index)
+                        bpy.ops.preferences.studiolight_uninstall(
+                            index=studio_light.index)
 
         prefs.studio_lights.new(path=filepath_final)
 
@@ -1076,7 +1098,8 @@ class PREFERENCES_OT_studiolight_new(Operator):
     def draw(self, _context):
         layout = self.layout
         if self.ask_overide:
-            layout.label(text="Warning, file already exists. Overwrite existing file?")
+            layout.label(
+                text="Warning, file already exists. Overwrite existing file?")
         else:
             layout.prop(self, "filename")
 
@@ -1141,6 +1164,184 @@ class PREFERENCES_OT_studiolight_show(Operator):
         bpy.ops.screen.userpref_show('INVOKE_DEFAULT')
         return {'FINISHED'}
 
+# -----------------------------------------------------------------------------
+# User Menus Operators
+
+class PREFERENCES_OT_usermenus_select(Operator):
+    bl_idname = "preferences.usermenus_select"
+    bl_label = "select user menu to edit"
+
+    index: IntProperty()
+
+    def execute(self, _context):
+        prefs = _context.preferences
+        um = prefs.user_menus
+
+        i = 0
+        for umg in um.menus:
+            if i == self.index:
+                um.set_group(new_group=umg)
+                return {'FINISHED'}
+            i = i + 1
+        return {'CANCELLED'}
+
+class PREFERENCES_OT_usermenus_add(Operator):
+    bl_idname = "preferences.usermenus_add"
+    bl_label = "add an user menus group"
+
+    def execute(self, _context):
+        prefs = _context.preferences
+        um = prefs.user_menus
+        um.add_group()
+        return {'FINISHED'}
+
+class PREFERENCES_OT_usermenus_remove(Operator):
+    bl_idname = "preferences.usermenus_remove"
+    bl_label = "remove an user menus group"
+
+    @classmethod
+    def poll(self, context):
+        prefs = context.preferences
+        um = prefs.user_menus
+
+        if um.active_group.idname == "QUICK_FAVORITES":
+            return False
+        return True
+
+    def execute(self, _context):
+        prefs = _context.preferences
+        um = prefs.user_menus
+        um.remove_group()
+        return {'FINISHED'}
+
+class PREFERENCES_OT_menuitem_add(Operator):
+    """Add user menu item"""
+    bl_idname = "preferences.menuitem_add"
+    bl_label = "Add User Menu Item"
+
+    index: IntProperty()
+
+    def execute(self, context):
+        prefs = context.preferences
+        um = prefs.user_menus
+
+        um.item_add(index=self.index)
+        context.preferences.is_dirty = True
+        return {'FINISHED'}
+
+
+class PREFERENCES_OT_menuitem_remove(Operator):
+    """Remove user menu item"""
+    bl_idname = "preferences.menuitem_remove"
+    bl_label = "Remove User Menu Item"
+
+    @classmethod
+    def poll(self, context):
+        prefs = context.preferences
+        um = prefs.user_menus
+        can_remove = um.active_item
+        um_type = um.active_group.type
+
+        if um_type == "PIE" and can_remove:
+            if not can_remove.parent:
+                return False
+        return can_remove
+
+    def execute(self, context):
+        prefs = context.preferences
+        um = prefs.user_menus
+        um.item_remove()
+        context.preferences.is_dirty = True
+        return {'FINISHED'}
+
+
+class PREFERENCES_OT_menuitem_up(Operator):
+    """move up an user menu item"""
+    bl_idname = "preferences.menuitem_up"
+    bl_label = "Move Up An User Menu Item"
+
+    @classmethod
+    def poll(self, context):
+        prefs = context.preferences
+        um = prefs.user_menus
+        current = um.active_item
+        um_type = um.active_group.type
+        if not current:
+            return False
+        
+        if um_type == "PIE":
+            if not current.parent:
+                return False
+            prev_item = current.prev
+            if prev_item:
+                return True
+            if current.parent.item.parent:
+                return True
+            return False
+        else:
+            prev_item = current.prev
+            if prev_item or current.parent:
+                return True
+            return False
+
+    def execute(self, context):
+        prefs = context.preferences
+        um = prefs.user_menus
+        um.item_move(up=True)
+        context.preferences.is_dirty = True
+        return {'FINISHED'}
+
+
+class PREFERENCES_OT_menuitem_down(Operator):
+    """move up an user menu item"""
+    bl_idname = "preferences.menuitem_down"
+    bl_label = "Move Up An User Menu Item"
+
+    @classmethod
+    def poll(self, context):
+        prefs = context.preferences
+        um = prefs.user_menus
+        um_type = um.active_group.type
+        current = um.active_item
+        if not current:
+            return False
+        
+        if um_type == "PIE":
+            if not current.parent:
+                return False
+            next_item = current.next
+            if next_item:
+                return True
+            if current.parent.item.parent:
+                return True
+            return False
+        else:
+            next_item = current.next
+            if next_item or current.parent:
+                return True
+            return False
+
+    def execute(self, context):
+        prefs = context.preferences
+        um = prefs.user_menus
+        um.item_move(up=False)
+        context.preferences.is_dirty = True
+        return {'FINISHED'}
+
+class PREFERENCES_OT_pie_menuitem_add(Operator):
+    """Add user menu item"""
+    bl_idname = "preferences.pie_menuitem_add"
+    bl_label = "Add User Menu Item"
+
+    index: IntProperty()
+
+    def execute(self, context):
+        prefs = context.preferences
+        um = prefs.user_menus
+
+        um.pie_item_add(index=self.index)
+        context.preferences.is_dirty = True
+        return {'FINISHED'}
 
 classes = (
     PREFERENCES_OT_addon_disable,
@@ -1167,4 +1368,12 @@ classes = (
     PREFERENCES_OT_studiolight_uninstall,
     PREFERENCES_OT_studiolight_copy_settings,
     PREFERENCES_OT_studiolight_show,
+    PREFERENCES_OT_usermenus_select,
+    PREFERENCES_OT_usermenus_add,
+    PREFERENCES_OT_usermenus_remove,
+    PREFERENCES_OT_menuitem_add,
+    PREFERENCES_OT_menuitem_remove,
+    PREFERENCES_OT_menuitem_up,
+    PREFERENCES_OT_menuitem_down,
+    PREFERENCES_OT_pie_menuitem_add,
 )

release/scripts/startup/bl_operators/wm.py

@@ -2633,6 +2633,36 @@ class WM_OT_drop_blend_file(Operator):
         col.operator("wm.link", text="Link...", icon='LINK_BLEND').filepath = self.filepath
         col.operator("wm.append", text="Append...", icon='APPEND_BLEND').filepath = self.filepath
 
+class WM_OT_call_user_menu(Operator):
+    bl_idname = "wm.call_user_menu"
+    bl_label = "display user menu"
+
+    name: StringProperty()
+
+    def execute(self, context):
+        return {'FINISHED'}
+
+    def draw_menu(self, menu, context):
+        prefs = context.preferences
+        um = prefs.user_menus
+        umg = um.get_group(idname=self.name)
+
+        layout = menu.layout
+        if umg.type == "PIE":
+            layout = layout.menu_pie()
+        um.draw_menu(context=context, layout=layout, menu=umg)
+
+    def invoke(self, context, event):
+        prefs = context.preferences
+        um = prefs.user_menus
+        wm = context.window_manager
+        umg = um.get_group(idname=self.name)
+
+        if umg.type == "PIE":
+            wm.popup_menu_pie(draw_func=self.draw_menu, title=umg.name, event=event)
+        else:
+            wm.popup_menu(self.draw_menu, title=umg.name)
+        return {'FINISHED'}
 
 classes = (
     WM_OT_context_collection_boolean_set,
@@ -2677,4 +2707,5 @@ classes = (
     WM_OT_batch_rename,
     WM_MT_splash,
     WM_MT_splash_about,
+    WM_OT_call_user_menu,
 )

release/scripts/startup/bl_ui/space_userpref.py

@@ -1684,8 +1684,37 @@ class USERPREF_PT_keymap(KeymapPanel, Panel):
         # Keymap Settings
         draw_keymaps(context, layout)
 
-        # print("runtime", time.time() - start)
+# -----------------------------------------------------------------------------
+# Custom Menu Editor Panels
 
+class UserMenusPanel:
+    bl_space_type = 'PREFERENCES'
+    bl_region_type = 'WINDOW'
+    bl_context = "user_menus"
+
+class USERPREF_MT_menu_select(Menu):
+    bl_label = "Menus group select"
+
+    def draw(self, context):
+        prefs = context.preferences
+        um = prefs.user_menus
+
+        layout = self.layout
+        index = 0
+        for umg in um.menus:
+            layout.operator("preferences.usermenus_select", text=umg.name).index = index
+            index = index + 1
+
+
+class USERPREF_PT_user_menus(UserMenusPanel, Panel):
+    bl_label = "user_menus"
+    bl_options = {'HIDE_HEADER'}
+
+    def draw(self, context):
+        from rna_user_menus_ui import draw_user_menus
+
+        layout = self.layout
+        draw_user_menus(context, layout)
 
 # -----------------------------------------------------------------------------
 # Add-On Panels
@@ -2278,6 +2307,8 @@ classes = (
     USERPREF_PT_navigation_fly_walk_gravity,
 
     USERPREF_PT_keymap,
+    USERPREF_MT_menu_select,
+    USERPREF_PT_user_menus,
     USERPREF_PT_addons,
 
     USERPREF_PT_studiolight_lights,

source/blender/blenkernel/BKE_blender_user_menu.h

@@ -27,7 +27,16 @@ extern "C" {
 struct ListBase;
 struct bUserMenu;
 struct bUserMenuItem;
+struct wmWindowManager;
+struct bUserMenusGroup;
 
+void BKE_blender_user_menu_free_list(struct ListBase *lb);
+void BKE_blender_user_menus_group_idname_update(struct bUserMenusGroup *umg);
+void BKE_blender_user_menus_group_idname_update_keymap(struct wmWindowManager *wm,
+                                                       const char *old,
+                                                       const char *new);
+struct bUserMenusGroup *BKE_blender_user_menus_group_new(const char *name);
+struct bUserMenusGroup *BKE_blender_user_menus_group_find(struct ListBase *lb, const char *idname);
 struct bUserMenu *BKE_blender_user_menu_find(struct ListBase *lb,
                                              char space_type,
                                              const char *context);
@@ -38,6 +47,7 @@ struct bUserMenu *BKE_blender_user_menu_ensure(struct ListBase *lb,
 struct bUserMenuItem *BKE_blender_user_menu_item_add(struct ListBase *lb, int type);
 void BKE_blender_user_menu_item_free(struct bUserMenuItem *umi);
 void BKE_blender_user_menu_item_free_list(struct ListBase *lb);
+struct bUserMenusGroup *BKU_blender_user_menu_default(void);
 
 #ifdef __cplusplus
 }

source/blender/blenkernel/BKE_context.h

@@ -255,6 +255,7 @@ struct ViewLayer *CTX_data_view_layer(const bContext *C);
 struct RenderEngineType *CTX_data_engine_type(const bContext *C);
 struct ToolSettings *CTX_data_tool_settings(const bContext *C);
 
+const char **CTX_data_list_mode_string(void);
 const char *CTX_data_mode_string(const bContext *C);
 enum eContextObjectMode CTX_data_mode_enum_ex(const struct Object *obedit,
                                               const struct Object *ob,

source/blender/blenkernel/intern/blender.c

@@ -238,10 +238,14 @@ static void userdef_free_keyconfig_prefs(UserDef *userdef)
 
 static void userdef_free_user_menus(UserDef *userdef)
 {
-  for (bUserMenu *um = userdef->user_menus.first, *um_next; um; um = um_next) {
-    um_next = um->next;
-    BKE_blender_user_menu_item_free_list(&um->items);
-    MEM_freeN(um);
+  for (bUserMenusGroup *umg = userdef->user_menus_group.first, *umg_next; umg; umg = umg_next) {
+    umg_next = umg->next;
+    for (bUserMenu *um = umg->menus.first, *um_next; um; um = um_next) {
+      um_next = um->next;
+      BKE_blender_user_menu_item_free_list(&um->items);
+      MEM_freeN(um);
+    }
+    MEM_freeN(umg);
   }
 }
 

source/blender/blenkernel/intern/blender_user_menu.c

@@ -26,12 +26,97 @@
 
 #include "BLI_listbase.h"
 #include "BLI_string.h"
+#include "BLI_string_utils.h"
 
 #include "DNA_userdef_types.h"
+#include "DNA_windowmanager_types.h"
+
+#include "RNA_access.h"
 
 #include "BKE_blender_user_menu.h"
 #include "BKE_idprop.h"
 
+/* -------------------------------------------------------------------- */
+/** \name Menu group
+ * \{ */
+
+void BKE_blender_user_menu_free_list(ListBase *lb)
+{
+  for (bUserMenu *um = lb->first, *um_next; um; um = um_next) {
+    um_next = um->next;
+    BKE_blender_user_menu_item_free_list(&um->items);
+    MEM_freeN(um);
+  }
+  BLI_listbase_clear(lb);
+}
+
+bUserMenusGroup *BKE_blender_user_menus_group_find(ListBase *lb, const char *idname)
+{
+  LISTBASE_FOREACH (bUserMenusGroup *, umg, lb) {
+    if ((STREQ(idname, umg->idname))) {
+      return umg;
+    }
+  }
+  return NULL;
+}
+
+void BKE_blender_user_menus_group_idname_update(bUserMenusGroup *umg)
+{
+  char name[64];
+
+  STRNCPY(name, umg->name);
+  for (int i = 0; name[i]; i++) {
+    if (name[i] == ' ')
+      name[i] = '_';
+    if (name[i] >= 'a' && name[i] <= 'z')
+      name[i] += 'A' - 'a';
+  }
+  STRNCPY(umg->idname, name);
+  BLI_uniquename(&U.user_menus_group,
+                 umg,
+                 umg->idname,
+                 '_',
+                 offsetof(bUserMenusGroup, idname),
+                 sizeof(umg->idname));
+}
+
+void BKE_blender_user_menus_group_idname_update_keymap(wmWindowManager *wm,
+                                                       const char *old,
+                                                       const char *new)
+{
+  wmKeyConfig *kc;
+  wmKeyMap *km;
+
+  for (kc = wm->keyconfigs.first; kc; kc = kc->next) {
+    for (km = kc->keymaps.first; km; km = km->next) {
+      wmKeyMapItem *kmi;
+      for (kmi = km->items.first; kmi; kmi = kmi->next) {
+        if (STREQ(kmi->idname, "WM_OT_call_user_menu")) {
+          IDProperty *idp = IDP_GetPropertyFromGroup(kmi->properties, "name");
+          char *index = IDP_String(idp);
+          if (STREQ(index, old)) {
+            IDP_AssignString(idp, new, 64);
+          }
+        }
+      }
+    }
+  }
+}
+
+bUserMenusGroup *BKE_blender_user_menus_group_new(const char *name)
+{
+  bUserMenusGroup *umg = MEM_mallocN(sizeof(*umg), __func__);
+  STRNCPY(umg->name, name);
+  umg->type = 0;
+  umg->prev = NULL;
+  umg->next = NULL;
+  BLI_listbase_clear(&umg->menus);
+  BKE_blender_user_menus_group_idname_update(umg);
+  return umg;
+}
+
+/** \} */
+
 /* -------------------------------------------------------------------- */
 /** \name Menu Type
  * \{ */
@@ -50,8 +135,10 @@ bUserMenu *BKE_blender_user_menu_ensure(ListBase *lb, char space_type, const cha
 {
   bUserMenu *um = BKE_blender_user_menu_find(lb, space_type, context);
   if (um == NULL) {
+
     um = MEM_callocN(sizeof(bUserMenu), __func__);
     um->space_type = space_type;
+    BLI_listbase_clear(&um->items);
     STRNCPY(um->context, context);
     BLI_addhead(lb, um);
   }
@@ -80,6 +167,9 @@ bUserMenuItem *BKE_blender_user_menu_item_add(ListBase *lb, int type)
   else if (type == USER_MENU_TYPE_PROP) {
     size = sizeof(bUserMenuItem_Prop);
   }
+  else if (type == USER_MENU_TYPE_SUBMENU) {
+    size = sizeof(bUserMenuItem_SubMenu);
+  }
   else {
     size = sizeof(bUserMenuItem);
     BLI_assert(0);
@@ -87,7 +177,9 @@ bUserMenuItem *BKE_blender_user_menu_item_add(ListBase *lb, int type)
 
   bUserMenuItem *umi = MEM_callocN(size, __func__);
   umi->type = type;
-  BLI_addtail(lb, umi);
+  umi->icon = 0;
+  if (lb)
+    BLI_addtail(lb, umi);
   return umi;
 }
 
@@ -99,6 +191,10 @@ void BKE_blender_user_menu_item_free(bUserMenuItem *umi)
       IDP_FreeProperty(umi_op->prop);
     }
   }
+  if (umi->type == USER_MENU_TYPE_SUBMENU) {
+    bUserMenuItem_SubMenu *umi_sm = (bUserMenuItem_SubMenu *)umi;
+    BKE_blender_user_menu_item_free_list(&umi_sm->items);
+  }
   MEM_freeN(umi);
 }
 
@@ -110,3 +206,19 @@ void BKE_blender_user_menu_item_free_list(ListBase *lb)
   }
   BLI_listbase_clear(lb);
 }
+
+/* -------------------------------------------------------------------- */
+/** \name Default Menu
+ * \{ */
+
+bUserMenusGroup *BKU_blender_user_menu_default(void)
+{
+  bUserMenusGroup *umg = MEM_mallocN(sizeof(*umg), __func__);
+  STRNCPY(umg->name, "Quick Favorites");
+  STRNCPY(umg->idname, "QUICK_FAVORITES");
+  umg->type = 0;
+  umg->prev = NULL;
+  umg->next = NULL;
+  BLI_listbase_clear(&umg->menus);
+  return umg;
+}

source/blender/blenkernel/intern/blendfile.c

@@ -57,6 +57,7 @@
 #include "BKE_screen.h"
 #include "BKE_studiolight.h"
 #include "BKE_workspace.h"
+#include "BKE_blender_user_menu.h"
 
 #include "BLO_readfile.h"
 #include "BLO_writefile.h"
@@ -614,6 +615,13 @@ UserDef *BKE_blendfile_userdef_from_defaults(void)
     BLI_addtail(&userdef->themes, btheme);
   }
 
+  /* default user menus. */
+  {
+    bUserMenusGroup *umg = BKU_blender_user_menu_default();
+    BLI_addtail(&userdef->user_menus_group, umg);
+    userdef->runtime.umg_select = umg;
+  }
+
 #ifdef WITH_PYTHON_SECURITY
   /* use alternative setting for security nuts
    * otherwise we'd need to patch the binary blob - startup.blend.c */

source/blender/blenkernel/intern/context.c

@@ -1151,6 +1151,11 @@ const char *CTX_data_mode_string(const bContext *C)
   return data_mode_strings[CTX_data_mode_enum(C)];
 }
 
+const char **CTX_data_list_mode_string(void)
+{
+  return data_mode_strings;
+}
+
 void CTX_data_scene_set(bContext *C, Scene *scene)
 {
   C->data.scene = scene;

source/blender/blenloader/intern/readfile.c

@@ -114,6 +114,7 @@
 #include "BKE_action.h"
 #include "BKE_anim_data.h"
 #include "BKE_armature.h"
+#include "BKE_blender_user_menu.h"
 #include "BKE_brush.h"
 #include "BKE_collection.h"
 #include "BKE_colortools.h"
@@ -159,6 +160,8 @@
 #include "BKE_volume.h"
 #include "BKE_workspace.h"
 
+#include "BKE_blender_user_menu.h"
+
 #include "DRW_engine.h"
 
 #include "DEG_depsgraph.h"
@@ -8897,6 +8900,26 @@ static void direct_link_keymapitem(BlendDataReader *reader, wmKeyMapItem *kmi)
   kmi->flag &= ~KMI_UPDATE;
 }
 
+static void read_usermenuitems(BlendDataReader *reader,
+                               ListBase *lb,
+                               bUserMenuItem_SubMenu *parent)
+{
+  LISTBASE_FOREACH (bUserMenuItem *, umi, lb) {
+    umi->parent = parent;
+    if (umi->type == USER_MENU_TYPE_OPERATOR) {
+      bUserMenuItem_Op *umi_op = (bUserMenuItem_Op *)umi;
+      BLO_read_data_address(reader, &umi_op->prop);
+      IDP_BlendDataRead(reader, &umi_op->prop);
+    }
+    if (umi->type == USER_MENU_TYPE_SUBMENU) {
+      bUserMenuItem_SubMenu *umi_sm = (bUserMenuItem_SubMenu *)umi;
+      BLI_listbase_clear(&umi_sm->items);
+      BLO_read_list(reader, &umi_sm->items);
+      read_usermenuitems(reader, &umi_sm->items, umi_sm);
+    }
+  }
+}
+
 static BHead *read_userdef(BlendFileData *bfd, FileData *fd, BHead *bhead)
 {
   UserDef *user;
@@ -8918,6 +8941,7 @@ static BHead *read_userdef(BlendFileData *bfd, FileData *fd, BHead *bhead)
   BLO_read_list(reader, &user->user_menus);
   BLO_read_list(reader, &user->addons);
   BLO_read_list(reader, &user->autoexec_paths);
+  BLO_read_list(reader, &user->user_menus_group);
 
   LISTBASE_FOREACH (wmKeyMap *, keymap, &user->user_keymaps) {
     keymap->modal_items = NULL;
@@ -8951,13 +8975,7 @@ static BHead *read_userdef(BlendFileData *bfd, FileData *fd, BHead *bhead)
 
   LISTBASE_FOREACH (bUserMenu *, um, &user->user_menus) {
     BLO_read_list(reader, &um->items);
-    LISTBASE_FOREACH (bUserMenuItem *, umi, &um->items) {
-      if (umi->type == USER_MENU_TYPE_OPERATOR) {
-        bUserMenuItem_Op *umi_op = (bUserMenuItem_Op *)umi;
-        BLO_read_data_address(reader, &umi_op->prop);
-        IDP_BlendDataRead(reader, &umi_op->prop);
-      }
-    }
+    read_usermenuitems(reader, &um->items, NULL);
   }
 
   LISTBASE_FOREACH (bAddon *, addon, &user->addons) {
@@ -8965,6 +8983,23 @@ static BHead *read_userdef(BlendFileData *bfd, FileData *fd, BHead *bhead)
     IDP_BlendDataRead(reader, &addon->prop);
   }
 
+  LISTBASE_FOREACH (bUserMenusGroup *, umg, &user->user_menus_group) {
+    BLO_read_list(reader, &umg->menus);
+    BKE_blender_user_menus_group_idname_update(umg);
+    LISTBASE_FOREACH (bUserMenu *, um, &umg->menus) {
+      BLO_read_list(reader, &um->items);
+      read_usermenuitems(reader, &um->items, NULL);
+    }
+  }
+
+  if (user->user_menus.first != NULL && user->user_menus_group.first == NULL) {
+    bUserMenusGroup *umg = BKU_blender_user_menu_default();
+    BLI_addtail(&user->user_menus_group, umg);
+    user->runtime.umg_select = umg;
+    umg->menus = user->user_menus;
+    BLI_listbase_clear(&user->user_menus);
+  }
+
   // XXX
   user->uifonts.first = user->uifonts.last = NULL;
 
@@ -8976,6 +9011,10 @@ static BHead *read_userdef(BlendFileData *bfd, FileData *fd, BHead *bhead)
   /* Clear runtime data. */
   user->runtime.is_dirty = false;
   user->edit_studio_light = 0;
+  user->runtime.um_space_select = 1;
+  user->runtime.um_context_select = 1;
+  user->runtime.um_item_select = NULL;
+  user->runtime.umg_select = user->user_menus_group.first;
 
   /* free fd->datamap again */
   oldnewmap_clear(fd->datamap);

source/blender/blenloader/intern/writefile.c

@@ -980,7 +980,37 @@ static void write_keymapitem(BlendWriter *writer, const wmKeyMapItem *kmi)
   }
 }
 
+static void write_usermenuitems(BlendWriter *writer, const ListBase *lb)
+{
+  LISTBASE_FOREACH (const bUserMenuItem *, umi, lb) {
+    if (umi->type == USER_MENU_TYPE_OPERATOR) {
+      const bUserMenuItem_Op *umi_op = (const bUserMenuItem_Op *)umi;
+      BLO_write_struct(writer, bUserMenuItem_Op, umi_op);
+      if (umi_op->prop) {
+        IDP_BlendWrite(writer, umi_op->prop);
+      }
+    }
+    else if (umi->type == USER_MENU_TYPE_MENU) {
+      const bUserMenuItem_Menu *umi_mt = (const bUserMenuItem_Menu *)umi;
+      BLO_write_struct(writer, bUserMenuItem_Menu, umi_mt);
+    }
+    else if (umi->type == USER_MENU_TYPE_PROP) {
+      const bUserMenuItem_Prop *umi_pr = (const bUserMenuItem_Prop *)umi;
+      BLO_write_struct(writer, bUserMenuItem_Prop, umi_pr);
+    }
+    else if (umi->type == USER_MENU_TYPE_SUBMENU) {
+      const bUserMenuItem_SubMenu *umi_sm = (const bUserMenuItem_SubMenu *)umi;
+      BLO_write_struct(writer, bUserMenuItem_SubMenu, umi_sm);
+      write_usermenuitems(writer, &umi_sm->items);
+    }
+    else {
+      BLO_write_struct(writer, bUserMenuItem, umi);
+    }
+  }
+}
+
 static void write_userdef(BlendWriter *writer, const UserDef *userdef)
+
 {
   writestruct(writer->wd, USER, UserDef, 1, userdef);
 
@@ -1013,30 +1043,6 @@ static void write_userdef(BlendWriter *writer, const UserDef *userdef)
     }
   }
 
-  LISTBASE_FOREACH (const bUserMenu *, um, &userdef->user_menus) {
-    BLO_write_struct(writer, bUserMenu, um);
-    LISTBASE_FOREACH (const bUserMenuItem *, umi, &um->items) {
-      if (umi->type == USER_MENU_TYPE_OPERATOR) {
-        const bUserMenuItem_Op *umi_op = (const bUserMenuItem_Op *)umi;
-        BLO_write_struct(writer, bUserMenuItem_Op, umi_op);
-        if (umi_op->prop) {
-          IDP_BlendWrite(writer, umi_op->prop);
-        }
-      }
-      else if (umi->type == USER_MENU_TYPE_MENU) {
-        const bUserMenuItem_Menu *umi_mt = (const bUserMenuItem_Menu *)umi;
-        BLO_write_struct(writer, bUserMenuItem_Menu, umi_mt);
-      }
-      else if (umi->type == USER_MENU_TYPE_PROP) {
-        const bUserMenuItem_Prop *umi_pr = (const bUserMenuItem_Prop *)umi;
-        BLO_write_struct(writer, bUserMenuItem_Prop, umi_pr);
-      }
-      else {
-        BLO_write_struct(writer, bUserMenuItem, umi);
-      }
-    }
-  }
-
   LISTBASE_FOREACH (const bAddon *, bext, &userdef->addons) {
     BLO_write_struct(writer, bAddon, bext);
     if (bext->prop) {
@@ -1048,6 +1054,14 @@ static void write_userdef(BlendWriter *writer, const UserDef *userdef)
     BLO_write_struct(writer, bPathCompare, path_cmp);
   }
 
+  LISTBASE_FOREACH (const bUserMenusGroup *, umg, &userdef->user_menus_group) {
+    BLO_write_struct(writer, bUserMenusGroup, umg);
+    LISTBASE_FOREACH (const bUserMenu *, um, &umg->menus) {
+      BLO_write_struct(writer, bUserMenu, um);
+      write_usermenuitems(writer, &um->items);
+    }
+  }
+
   LISTBASE_FOREACH (const uiStyle *, style, &userdef->uistyles) {
     BLO_write_struct(writer, uiStyle, style);
   }

source/blender/editors/include/ED_screen.h

@@ -374,8 +374,12 @@ bool ED_operator_camera(struct bContext *C);
 
 /* screen_user_menu.c */
 
-bUserMenu **ED_screen_user_menus_find(const struct bContext *C, uint *r_len);
-struct bUserMenu *ED_screen_user_menu_ensure(struct bContext *C);
+struct bUserMenusGroup *ED_screen_user_menus_group_find(int id);
+struct bUserMenu **ED_screen_user_menus_find_menu(const struct bContext *C,
+                                                  uint *r_len,
+                                                  struct bUserMenusGroup *umg);
+struct bUserMenu **ED_screen_user_menus_find(const struct bContext *C, uint *r_len, int id);
+struct bUserMenu *ED_screen_user_menu_ensure(struct bContext *C, int id);
 
 struct bUserMenuItem_Op *ED_screen_user_menu_item_find_operator(struct ListBase *lb,
                                                                 const struct wmOperatorType *ot,
@@ -396,7 +400,8 @@ void ED_screen_user_menu_item_add_operator(struct ListBase *lb,
 void ED_screen_user_menu_item_add_menu(struct ListBase *lb,
                                        const char *ui_name,
                                        const struct MenuType *mt);
-void ED_screen_user_menu_item_add_prop(ListBase *lb,
+void ED_screen_user_menu_item_add_prop(struct bContext *C,
+                                       ListBase *lb,
                                        const char *ui_name,
                                        const char *context_data_path,
                                        const char *prop_id,
@@ -404,6 +409,14 @@ void ED_screen_user_menu_item_add_prop(ListBase *lb,
 
 void ED_screen_user_menu_item_remove(struct ListBase *lb, struct bUserMenuItem *umi);
 void ED_screen_user_menu_register(void);
+bool screen_user_menu_draw_items(const struct bContext *C,
+                                 struct uiLayout *layout,
+                                 struct ListBase *lb,
+                                 char type);
+void screen_user_menu_draw_begin(struct bContext *C,
+                                 struct uiLayout *layout,
+                                 char type,
+                                 struct bUserMenusGroup *umg);
 
 /* Cache display helpers */
 

source/blender/editors/include/UI_interface.h

@@ -2113,6 +2113,7 @@ void uiTemplateCacheFile(uiLayout *layout,
                          const struct bContext *C,
                          struct PointerRNA *ptr,
                          const char *propname);
+void uiTemplateUserMenuItemProperties(uiLayout *layout, PointerRNA *ptr);
 
 /* Default UIList class name, keep in sync with its declaration in bl_ui/__init__.py */
 #define UI_UL_DEFAULT_CLASS_NAME "UI_UL_list"

source/blender/editors/interface/interface_context_menu.c

@@ -437,7 +437,8 @@ static void ui_but_user_menu_add(bContext *C, uiBut *but, bUserMenu *um)
     }
     const char *prop_id = RNA_property_identifier(but->rnaprop);
     /* Note, ignore 'drawstr', use property idname always. */
-    ED_screen_user_menu_item_add_prop(&um->items, "", member_id_data_path, prop_id, but->rnaindex);
+    ED_screen_user_menu_item_add_prop(
+        C, &um->items, "", member_id_data_path, prop_id, but->rnaindex);
     if (data_path) {
       MEM_freeN((void *)data_path);
     }
@@ -453,7 +454,7 @@ static void ui_but_user_menu_add(bContext *C, uiBut *but, bUserMenu *um)
 static void popup_user_menu_add_or_replace_func(bContext *C, void *arg1, void *UNUSED(arg2))
 {
   uiBut *but = arg1;
-  bUserMenu *um = ED_screen_user_menu_ensure(C);
+  bUserMenu *um = ED_screen_user_menu_ensure(C, 0);
   U.runtime.is_dirty = true;
   ui_but_user_menu_add(C, but, um);
 }
@@ -983,7 +984,7 @@ bool ui_popup_context_menu_for_button(bContext *C, uiBut *but)
     bool item_found = false;
 
     uint um_array_len;
-    bUserMenu **um_array = ED_screen_user_menus_find(C, &um_array_len);
+    bUserMenu **um_array = ED_screen_user_menus_find(C, &um_array_len, 0);
     for (int um_index = 0; um_index < um_array_len; um_index++) {
       bUserMenu *um = um_array[um_index];
       if (um == NULL) {

source/blender/editors/interface/interface_templates.c

@@ -7390,3 +7390,80 @@ void uiTemplateFileSelectPath(uiLayout *layout, bContext *C, FileSelectParams *p
 }
 
 /** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Keymap Template
+ * \{ */
+
+static void template_user_menu_item_properties(uiLayout *layout,
+                                               const char *title,
+                                               PointerRNA *ptr)
+{
+  uiLayout *flow, *box, *row;
+
+  uiItemS(layout);
+
+  if (title) {
+    uiItemL(layout, title, ICON_NONE);
+  }
+
+  flow = uiLayoutColumnFlow(layout, 2, false);
+
+  int i = 0;
+  RNA_STRUCT_BEGIN_SKIP_RNA_TYPE (ptr, prop) {
+    const bool is_set = RNA_property_is_set(ptr, prop);
+    uiBut *but;
+
+    // recurse for nested properties
+    if (RNA_property_type(prop) == PROP_POINTER) {
+      PointerRNA propptr = RNA_property_pointer_get(ptr, prop);
+
+      if (propptr.data && RNA_struct_is_a(propptr.type, &RNA_OperatorProperties)) {
+        const char *name = RNA_property_ui_name(prop);
+        template_user_menu_item_properties(layout, name, &propptr);
+        continue;
+      }
+    }
+
+    box = uiLayoutBox(flow);
+    uiLayoutSetActive(box, is_set);
+    row = uiLayoutRow(box, false);
+
+    // property value
+    uiItemFullR(row, ptr, prop, -1, 0, 0, NULL, ICON_NONE);
+
+    if (is_set) {
+      // unset operator
+      uiBlock *block = uiLayoutGetBlock(row);
+      UI_block_emboss_set(block, UI_EMBOSS_NONE);
+      but = uiDefIconButO(block,
+                          UI_BTYPE_BUT,
+                          "UI_OT_unset_property_button",
+                          WM_OP_EXEC_DEFAULT,
+                          ICON_X,
+                          0,
+                          0,
+                          UI_UNIT_X,
+                          UI_UNIT_Y,
+                          NULL);
+      but->rnapoin = *ptr;
+      but->rnaprop = prop;
+      UI_block_emboss_set(block, UI_EMBOSS);
+    }
+  }
+  RNA_STRUCT_END;
+}
+
+void uiTemplateUserMenuItemProperties(uiLayout *layout, PointerRNA *ptr)
+{
+  PointerRNA propptr = RNA_pointer_get(ptr, "prop");
+
+  if (propptr.data) {
+    uiBut *but = uiLayoutGetBlock(layout)->buttons.last;
+
+    WM_operator_properties_sanitize(&propptr, false);
+    template_user_menu_item_properties(layout, NULL, &propptr);
+  }
+}
+
+/** \} */

source/blender/editors/screen/screen_user_menu.c

@@ -67,10 +67,23 @@ static const char *screen_menu_context_string(const bContext *C, const SpaceLink
 /** \} */
 
 /* -------------------------------------------------------------------- */
-/** \name Menu Type
+/** \name Menu Group
  * \{ */
 
-bUserMenu **ED_screen_user_menus_find(const bContext *C, uint *r_len)
+bUserMenusGroup *ED_screen_user_menus_group_find(int id)
+{
+  int index = 0;
+  LISTBASE_FOREACH (bUserMenusGroup *, umg, &U.user_menus_group) {
+    if (index == id)
+      return umg;
+    index++;
+  }
+  return NULL;
+}
+
+/** \} */
+
+bUserMenu **ED_screen_user_menus_find_menu(const bContext *C, uint *r_len, bUserMenusGroup *umg)
 {
   SpaceLink *sl = CTX_wm_space_data(C);
 
@@ -83,23 +96,33 @@ bUserMenu **ED_screen_user_menus_find(const bContext *C, uint *r_len)
   const char *context = screen_menu_context_string(C, sl);
   uint array_len = 3;
   bUserMenu **um_array = MEM_calloc_arrayN(array_len, sizeof(*um_array), __func__);
-  um_array[0] = BKE_blender_user_menu_find(&U.user_menus, sl->spacetype, context);
+  um_array[0] = BKE_blender_user_menu_find(&umg->menus, sl->spacetype, context);
   um_array[1] = (sl->spacetype != SPACE_TOPBAR) ?
-                    BKE_blender_user_menu_find(&U.user_menus, SPACE_TOPBAR, context_mode) :
+                    BKE_blender_user_menu_find(&umg->menus, SPACE_TOPBAR, context_mode) :
                     NULL;
   um_array[2] = (sl->spacetype == SPACE_VIEW3D) ?
-                    BKE_blender_user_menu_find(&U.user_menus, SPACE_PROPERTIES, context_mode) :
+                    BKE_blender_user_menu_find(&umg->menus, SPACE_PROPERTIES, context_mode) :
                     NULL;
-
   *r_len = array_len;
   return um_array;
 }
 
-bUserMenu *ED_screen_user_menu_ensure(bContext *C)
+bUserMenu **ED_screen_user_menus_find(const bContext *C, uint *r_len, int id)
 {
+  bUserMenusGroup *umg = ED_screen_user_menus_group_find(id);
+  if (!umg)
+    return NULL;
+  return ED_screen_user_menus_find_menu(C, r_len, umg);
+}
+
+bUserMenu *ED_screen_user_menu_ensure(bContext *C, int id)
+{
+  bUserMenusGroup *umg = ED_screen_user_menus_group_find(id);
+  if (!umg)
+    return NULL;
   SpaceLink *sl = CTX_wm_space_data(C);
   const char *context = screen_menu_context_string(C, sl);
-  return BKE_blender_user_menu_ensure(&U.user_menus, sl->spacetype, context);
+  return BKE_blender_user_menu_ensure(&umg->menus, sl->spacetype, context);
 }
 
 /** \} */
@@ -169,6 +192,9 @@ void ED_screen_user_menu_item_add_operator(ListBase *lb,
     STRNCPY(umi_op->item.ui_name, ui_name);
   }
   STRNCPY(umi_op->op_idname, ot->idname);
+  umi_op->ptr = NULL;
+  umi_op->prop = NULL;
+  WM_operator_properties_alloc(&(umi_op->ptr), &(umi_op->prop), ot->idname);
   umi_op->prop = prop ? IDP_CopyProperty(prop) : NULL;
 }
 
@@ -182,7 +208,8 @@ void ED_screen_user_menu_item_add_menu(ListBase *lb, const char *ui_name, const
   STRNCPY(umi_mt->mt_idname, mt->idname);
 }
 
-void ED_screen_user_menu_item_add_prop(ListBase *lb,
+void ED_screen_user_menu_item_add_prop(bContext *C,
+                                       ListBase *lb,
                                        const char *ui_name,
                                        const char *context_data_path,
                                        const char *prop_id,
@@ -194,6 +221,39 @@ void ED_screen_user_menu_item_add_prop(ListBase *lb,
   STRNCPY(umi_pr->context_data_path, context_data_path);
   STRNCPY(umi_pr->prop_id, prop_id);
   umi_pr->prop_index = prop_index;
+
+  /* Copy current context name into ui_name if null */
+  if (ui_name && ui_name[0] != '\0')
+    return;
+  char *data_path = strchr(umi_pr->context_data_path, '.');
+  if (data_path) {
+    *data_path = '\0';
+  }
+
+  PointerRNA ptr = CTX_data_pointer_get(C, umi_pr->context_data_path);
+  if (ptr.type == NULL) {
+    PointerRNA ctx_ptr;
+    RNA_pointer_create(NULL, &RNA_Context, (void *)C, &ctx_ptr);
+    if (!RNA_path_resolve_full(&ctx_ptr, umi_pr->context_data_path, &ptr, NULL, NULL)) {
+      ptr.type = NULL;
+    }
+  }
+  if (data_path) {
+    *data_path = '.';
+    data_path += 1;
+  }
+
+  if (ptr.type != NULL) {
+    PropertyRNA *prop = NULL;
+    PointerRNA prop_ptr = ptr;
+    if ((data_path == NULL) || RNA_path_resolve_full(&ptr, data_path, &prop_ptr, NULL, NULL)) {
+      prop = RNA_struct_find_property(&prop_ptr, umi_pr->prop_id);
+    }
+    if (prop) {
+      const char *name = RNA_property_ui_name(prop);
+      BLI_strncpy(umi_pr->item.ui_name, name, FILE_MAX);
+    }
+  }
 }
 
 void ED_screen_user_menu_item_remove(ListBase *lb, bUserMenuItem *umi)
@@ -208,97 +268,146 @@ void ED_screen_user_menu_item_remove(ListBase *lb, bUserMenuItem *umi)
 /** \name Menu Definition
  * \{ */
 
-static void screen_user_menu_draw(const bContext *C, Menu *menu)
+static void screen_user_menu_draw_submenu(bContext *C, uiLayout *layout, void *arg)
+{
+  ListBase *lb = (ListBase *)arg;
+
+  screen_user_menu_draw_items(C, layout, lb, false);
+}
+
+bool screen_user_menu_draw_items(const bContext *C, uiLayout *layout, ListBase *lb, char type)
 {
   /* Enable when we have the ability to edit menus. */
-  const bool show_missing = false;
   char label[512];
+  const bool show_missing = type;
+  bool is_empty = true;
 
+  int i = 0;
+
+  LISTBASE_FOREACH (bUserMenuItem *, umi, lb) {
+    if (type == 1 && i > 7)
+      return is_empty;
+    const char *ui_name = umi->ui_name[0] ? umi->ui_name : NULL;
+    if (umi->type == USER_MENU_TYPE_OPERATOR) {
+      bUserMenuItem_Op *umi_op = (bUserMenuItem_Op *)umi;
+      wmOperatorType *ot = WM_operatortype_find(umi_op->op_idname, false);
+      if (ot != NULL) {
+        IDProperty *prop = umi_op->prop ? IDP_CopyProperty(umi_op->prop) : NULL;
+        uiItemFullO_ptr(layout, ot, ui_name, umi->icon, prop, umi_op->opcontext, 0, NULL);
+        is_empty = false;
+      }
+      else {
+        if (show_missing) {
+          SNPRINTF(label, "Missing: %s", umi_op->op_idname);
+          uiItemL(layout, label, ICON_NONE);
+        }
+        i--;
+      }
+    }
+    else if (umi->type == USER_MENU_TYPE_MENU) {
+      bUserMenuItem_Menu *umi_mt = (bUserMenuItem_Menu *)umi;
+      MenuType *mt = WM_menutype_find(umi_mt->mt_idname, false);
+      if (mt != NULL) {
+        uiItemM_ptr(layout, mt, ui_name, umi->icon);
+        is_empty = false;
+      }
+      else {
+        if (show_missing) {
+          SNPRINTF(label, "Missing: %s", umi_mt->mt_idname);
+          uiItemL(layout, label, ICON_NONE);
+        }
+        i--;
+      }
+    }
+    else if (umi->type == USER_MENU_TYPE_SUBMENU) {
+      bUserMenuItem_SubMenu *umi_mt = (bUserMenuItem_SubMenu *)umi;
+
+      uiItemMenuF(
+          layout, ui_name, umi->icon, &screen_user_menu_draw_submenu, (void *)&umi_mt->items);
+      is_empty = false;
+    }
+    else if (umi->type == USER_MENU_TYPE_PROP) {
+      bUserMenuItem_Prop *umi_pr = (bUserMenuItem_Prop *)umi;
+
+      char *data_path = strchr(umi_pr->context_data_path, '.');
+      if (data_path) {
+        *data_path = '\0';
+      }
+      PointerRNA ptr = CTX_data_pointer_get(C, umi_pr->context_data_path);
+      if (ptr.type == NULL) {
+        PointerRNA ctx_ptr;
+        RNA_pointer_create(NULL, &RNA_Context, (void *)C, &ctx_ptr);
+        if (!RNA_path_resolve_full(&ctx_ptr, umi_pr->context_data_path, &ptr, NULL, NULL)) {
+          ptr.type = NULL;
+        }
+      }
+      if (data_path) {
+        *data_path = '.';
+        data_path += 1;
+      }
+
+      bool ok = false;
+      if (ptr.type != NULL) {
+        PropertyRNA *prop = NULL;
+        PointerRNA prop_ptr = ptr;
+        if ((data_path == NULL) || RNA_path_resolve_full(&ptr, data_path, &prop_ptr, NULL, NULL)) {
+          prop = RNA_struct_find_property(&prop_ptr, umi_pr->prop_id);
+          if (prop) {
+            ok = true;
+            uiItemFullR(layout, &prop_ptr, prop, umi_pr->prop_index, 0, 0, ui_name, umi->icon);
+            is_empty = false;
+          }
+        }
+      }
+      if (!ok) {
+        if (show_missing) {
+          SNPRINTF(label, "Missing: %s.%s", umi_pr->context_data_path, umi_pr->prop_id);
+          uiItemL(layout, label, ICON_NONE);
+        }
+        i--;
+      }
+    }
+    else if (umi->type == USER_MENU_TYPE_SEP) {
+      uiItemS(layout);
+    }
+    i++;
+  }
+  return is_empty;
+}
+
+void screen_user_menu_draw_begin(bContext *C, uiLayout *layout, char type, bUserMenusGroup *umg)
+{
   uint um_array_len;
-  bUserMenu **um_array = ED_screen_user_menus_find(C, &um_array_len);
+  bUserMenu **um_array = ED_screen_user_menus_find_menu(C, &um_array_len, umg);
   bool is_empty = true;
   for (int um_index = 0; um_index < um_array_len; um_index++) {
     bUserMenu *um = um_array[um_index];
     if (um == NULL) {
       continue;
     }
-    LISTBASE_FOREACH (bUserMenuItem *, umi, &um->items) {
-      const char *ui_name = umi->ui_name[0] ? umi->ui_name : NULL;
-      if (umi->type == USER_MENU_TYPE_OPERATOR) {
-        bUserMenuItem_Op *umi_op = (bUserMenuItem_Op *)umi;
-        wmOperatorType *ot = WM_operatortype_find(umi_op->op_idname, false);
-        if (ot != NULL) {
-          IDProperty *prop = umi_op->prop ? IDP_CopyProperty(umi_op->prop) : NULL;
-          uiItemFullO_ptr(menu->layout, ot, ui_name, ICON_NONE, prop, umi_op->opcontext, 0, NULL);
-          is_empty = false;
-        }
-        else {
-          if (show_missing) {
-            SNPRINTF(label, "Missing: %s", umi_op->op_idname);
-            uiItemL(menu->layout, label, ICON_NONE);
-          }
-        }
-      }
-      else if (umi->type == USER_MENU_TYPE_MENU) {
-        bUserMenuItem_Menu *umi_mt = (bUserMenuItem_Menu *)umi;
-        MenuType *mt = WM_menutype_find(umi_mt->mt_idname, false);
-        if (mt != NULL) {
-          uiItemM_ptr(menu->layout, mt, ui_name, ICON_NONE);
-          is_empty = false;
-        }
-        else {
-          if (show_missing) {
-            SNPRINTF(label, "Missing: %s", umi_mt->mt_idname);
-            uiItemL(menu->layout, label, ICON_NONE);
-          }
-        }
-      }
-      else if (umi->type == USER_MENU_TYPE_PROP) {
-        bUserMenuItem_Prop *umi_pr = (bUserMenuItem_Prop *)umi;
+    is_empty = screen_user_menu_draw_items(C, layout, &um->items, true) && is_empty;
+  }
+  if (um_array) {
+    MEM_freeN(um_array);
+  }
 
-        char *data_path = strchr(umi_pr->context_data_path, '.');
-        if (data_path) {
-          *data_path = '\0';
-        }
-        PointerRNA ptr = CTX_data_pointer_get(C, umi_pr->context_data_path);
-        if (ptr.type == NULL) {
-          PointerRNA ctx_ptr;
-          RNA_pointer_create(NULL, &RNA_Context, (void *)C, &ctx_ptr);
-          if (!RNA_path_resolve_full(&ctx_ptr, umi_pr->context_data_path, &ptr, NULL, NULL)) {
-            ptr.type = NULL;
-          }
-        }
-        if (data_path) {
-          *data_path = '.';
-          data_path += 1;
-        }
+  if (is_empty && type == 0) {
+    uiItemL(layout, TIP_("No menu items found"), ICON_NONE);
+    uiItemL(layout, TIP_("Right click on buttons to add them to this menu"), ICON_NONE);
+  }
+}
 
-        bool ok = false;
-        if (ptr.type != NULL) {
-          PropertyRNA *prop = NULL;
-          PointerRNA prop_ptr = ptr;
-          if ((data_path == NULL) ||
-              RNA_path_resolve_full(&ptr, data_path, &prop_ptr, NULL, NULL)) {
-            prop = RNA_struct_find_property(&prop_ptr, umi_pr->prop_id);
-            if (prop) {
-              ok = true;
-              uiItemFullR(
-                  menu->layout, &prop_ptr, prop, umi_pr->prop_index, 0, 0, ui_name, ICON_NONE);
-              is_empty = false;
-            }
-          }
-        }
-        if (!ok) {
-          if (show_missing) {
-            SNPRINTF(label, "Missing: %s.%s", umi_pr->context_data_path, umi_pr->prop_id);
-            uiItemL(menu->layout, label, ICON_NONE);
-          }
-        }
-      }
-      else if (umi->type == USER_MENU_TYPE_SEP) {
-        uiItemS(menu->layout);
-      }
+static void screen_user_menu_draw(const bContext *C, Menu *menu)
+{
+  uint um_array_len;
+  bUserMenu **um_array = ED_screen_user_menus_find(C, &um_array_len, 0);
+  bool is_empty = true;
+  for (int um_index = 0; um_index < um_array_len; um_index++) {
+    bUserMenu *um = um_array[um_index];
+    if (um == NULL) {
+      continue;
     }
+    is_empty = is_empty || screen_user_menu_draw_items(C, menu->layout, &um->items, true);
   }
   if (um_array) {
     MEM_freeN(um_array);

source/blender/editors/space_userpref/space_userpref.c

@@ -136,6 +136,7 @@ static void userpref_main_region_layout(const bContext *C, ARegion *region)
       i = 0;
     }
     const char *id = items[i].identifier;
+
     BLI_assert(strlen(id) < sizeof(id_lower));
     STRNCPY(id_lower, id);
     BLI_str_tolower_ascii(id_lower, strlen(id_lower));

source/blender/makesdna/DNA_userdef_types.h

@@ -515,27 +515,42 @@ typedef struct bPathCompare {
   char _pad0[7];
 } bPathCompare;
 
+typedef struct bUserMenusGroup {
+  struct bUserMenusGroup *next, *prev;
+  /* bUserMenu */
+  char idname[64];
+  char name[64];
+  char type;
+  char _pad0[7];
+  struct ListBase menus;
+} bUserMenusGroup;
+
 typedef struct bUserMenu {
   struct bUserMenu *next, *prev;
   char space_type;
   char _pad0[7];
   char context[64];
   /* bUserMenuItem */
-  ListBase items;
+  struct ListBase items;
 } bUserMenu;
 
 /** May be part of #bUserMenu or other list. */
 typedef struct bUserMenuItem {
   struct bUserMenuItem *next, *prev;
+  struct bUserMenuItem_SubMenu *parent;
+  int icon;
   char ui_name[64];
   char type;
-  char _pad0[7];
+  // editor
+  char is_selected;
+  char _pad0[2];
 } bUserMenuItem;
 
 typedef struct bUserMenuItem_Op {
   bUserMenuItem item;
   char op_idname[64];
   struct IDProperty *prop;
+  struct PointerRNA *ptr;
   char opcontext;
   char _pad0[7];
 } bUserMenuItem_Op;
@@ -545,6 +560,12 @@ typedef struct bUserMenuItem_Menu {
   char mt_idname[64];
 } bUserMenuItem_Menu;
 
+typedef struct bUserMenuItem_SubMenu {
+  bUserMenuItem item;
+  struct ListBase items;
+  char name[64];
+} bUserMenuItem_SubMenu;
+
 typedef struct bUserMenuItem_Prop {
   bUserMenuItem item;
   char context_data_path[256];
@@ -558,6 +579,7 @@ enum {
   USER_MENU_TYPE_OPERATOR = 2,
   USER_MENU_TYPE_MENU = 3,
   USER_MENU_TYPE_PROP = 4,
+  USER_MENU_TYPE_SUBMENU = 5,
 };
 
 typedef struct SolidLight {
@@ -582,7 +604,14 @@ typedef struct WalkNavigation {
 
 typedef struct UserDef_Runtime {
   char is_dirty;
-  char _pad0[7];
+
+  /* User menu editor runtime datas */
+  char um_space_select;
+  char um_context_select;
+  char um_expanded;
+  char _pad0[4];
+  struct bUserMenuItem *um_item_select;
+  struct bUserMenusGroup *umg_select;
 } UserDef_Runtime;
 
 /**
@@ -722,8 +751,10 @@ typedef struct UserDef {
   struct ListBase user_keyconfig_prefs;
   struct ListBase addons;
   struct ListBase autoexec_paths;
-  /** #bUserMenu. */
+  /** #bUserMenu : deprecated, keep for compatibility. */
   struct ListBase user_menus;
+  /** #bUserMenuGroups. */
+  struct ListBase user_menus_group;
 
   char keyconfigstr[64];
 
@@ -913,16 +944,17 @@ typedef enum eUserPref_Section {
   USER_SECTION_ADDONS = 6,
   USER_SECTION_LIGHT = 7,
   USER_SECTION_KEYMAP = 8,
+  USER_SECTION_USER_MENUS = 9,
 #ifdef WITH_USERDEF_WORKSPACES
-  USER_SECTION_WORKSPACE_CONFIG = 9,
-  USER_SECTION_WORKSPACE_ADDONS = 10,
-  USER_SECTION_WORKSPACE_KEYMAPS = 11,
+  USER_SECTION_WORKSPACE_CONFIG = 10,
+  USER_SECTION_WORKSPACE_ADDONS = 11,
+  USER_SECTION_WORKSPACE_KEYMAPS = 12,
 #endif
-  USER_SECTION_VIEWPORT = 12,
-  USER_SECTION_ANIMATION = 13,
-  USER_SECTION_NAVIGATION = 14,
-  USER_SECTION_FILE_PATHS = 15,
-  USER_SECTION_EXPERIMENTAL = 16,
+  USER_SECTION_VIEWPORT = 13,
+  USER_SECTION_ANIMATION = 14,
+  USER_SECTION_NAVIGATION = 15,
+  USER_SECTION_FILE_PATHS = 16,
+  USER_SECTION_EXPERIMENTAL = 17,
 } eUserPref_Section;
 
 /** #UserDef_SpaceData.flag (State of the user preferences UI). */

source/blender/makesrna/RNA_access.h

@@ -474,6 +474,7 @@ extern StructRNA RNA_PreferencesEdit;
 extern StructRNA RNA_PreferencesFilePaths;
 extern StructRNA RNA_PreferencesInput;
 extern StructRNA RNA_PreferencesKeymap;
+extern StructRNA RNA_PreferencesUserMenus;
 extern StructRNA RNA_PreferencesSystem;
 extern StructRNA RNA_PreferencesView;
 extern StructRNA RNA_Property;

source/blender/makesrna/intern/rna_define.c

@@ -1869,7 +1869,7 @@ void RNA_def_property_enum_items(PropertyRNA *prop, const EnumPropertyItem *item
 {
   StructRNA *srna = DefRNA.laststruct;
   int i, defaultfound = 0;
-
+  
   switch (prop->type) {
     case PROP_ENUM: {
       EnumPropertyRNA *eprop = (EnumPropertyRNA *)prop;

source/blender/makesrna/intern/rna_ui_api.c

@@ -1639,6 +1639,12 @@ void RNA_api_ui_layout(StructRNA *srna)
   RNA_def_property_ui_text(parm, "Item", "");
   RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED);
   api_ui_item_common_text(func);
+
+  /* User menu template */
+  func = RNA_def_function(
+      srna, "template_user_menu_item_properties", "uiTemplateUserMenuItemProperties");
+  parm = RNA_def_pointer(func, "item", "um_item_op", "", "");
+  RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED | PARM_RNAPTR);
 }
 
 #endif

source/blender/makesrna/intern/rna_userdef.c

@@ -88,6 +88,7 @@ const EnumPropertyItem rna_enum_preference_section_items[] = {
     {USER_SECTION_INPUT, "INPUT", 0, "Input", ""},
     {USER_SECTION_NAVIGATION, "NAVIGATION", 0, "Navigation", ""},
     {USER_SECTION_KEYMAP, "KEYMAP", 0, "Keymap", ""},
+    {USER_SECTION_USER_MENUS, "USER_MENUS", 0, "User Menus", ""},
     {0, "", 0, NULL, NULL},
     {USER_SECTION_SYSTEM, "SYSTEM", 0, "System", ""},
     {USER_SECTION_SAVE_LOAD, "SAVE_LOAD", 0, "Save & Load", ""},
@@ -177,6 +178,7 @@ static const EnumPropertyItem rna_enum_userdef_viewport_aa_items[] = {
 #  include "DNA_screen_types.h"
 
 #  include "BKE_blender.h"
+#  include "BKE_blender_user_menu.h"
 #  include "BKE_global.h"
 #  include "BKE_idprop.h"
 #  include "BKE_image.h"
@@ -186,6 +188,8 @@ static const EnumPropertyItem rna_enum_userdef_viewport_aa_items[] = {
 #  include "BKE_pbvh.h"
 #  include "BKE_screen.h"
 
+#  include "ED_screen.h"
+
 #  include "DEG_depsgraph.h"
 
 #  include "GPU_extensions.h"
@@ -531,6 +535,11 @@ static PointerRNA rna_UserDef_keymap_get(PointerRNA *ptr)
   return rna_pointer_inherit_refine(ptr, &RNA_PreferencesKeymap, ptr->data);
 }
 
+static PointerRNA rna_UserDef_user_menus_get(PointerRNA *ptr)
+{
+  return rna_pointer_inherit_refine(ptr, &RNA_PreferencesUserMenus, ptr->data);
+}
+
 static PointerRNA rna_UserDef_filepaths_get(PointerRNA *ptr)
 {
   return rna_pointer_inherit_refine(ptr, &RNA_PreferencesFilePaths, ptr->data);
@@ -1068,6 +1077,549 @@ static void rna_UserDef_studiolight_light_ambient_get(PointerRNA *ptr, float *va
   copy_v3_v3(values, sl->light_ambient);
 }
 
+/* User Menus Functions */
+
+static bUserMenu *rna_UserDef_usermenus_get_current(UserDef *userdef, bool ensure)
+{
+  const char **contexts_list = CTX_data_list_mode_string();
+#  if 0 /* UNUSED */
+  ListBase *umg_list = &userdef->user_menus_group;
+#  endif
+
+  bUserMenusGroup *umg = userdef->runtime.umg_select;
+  bUserMenu *bum = NULL;
+
+  if (!umg)
+    return NULL;
+  if (userdef->runtime.um_space_select > 0) {
+    if (umg->type) {
+      bum = BKE_blender_user_menu_find(&umg->menus,
+                                       userdef->runtime.um_space_select,
+                                       contexts_list[userdef->runtime.um_context_select]);
+      if (!bum) {
+        bum = BKE_blender_user_menu_ensure(&umg->menus,
+                                           userdef->runtime.um_space_select,
+                                           contexts_list[userdef->runtime.um_context_select]);
+        for (int i = 0; i < 8; i++) {
+          BKE_blender_user_menu_item_add(&bum->items, USER_MENU_TYPE_SEP);
+        }
+      }
+    }
+    else {
+      if (ensure) {
+        bum = BKE_blender_user_menu_ensure(&umg->menus,
+                                           userdef->runtime.um_space_select,
+                                           contexts_list[userdef->runtime.um_context_select]);
+      }
+      else {
+        bum = BKE_blender_user_menu_find(&umg->menus,
+                                         userdef->runtime.um_space_select,
+                                         contexts_list[userdef->runtime.um_context_select]);
+      }
+    }
+  }
+  return bum;
+}
+
+/*static bUserMenuItem *rna_UserDef_usermenus_get_current_item(UserDef *userdef)
+{
+  int id = userdef->runtime.um_item_select - 1;
+  if (id < 0) return NULL;
+
+  bUserMenu *bum = rna_UserDef_usermenus_get_current(userdef, false);
+  if (bum) {
+
+    ListBase *lb = &bum->items;
+    int i = 0;
+    for (bUserMenuItem *umi = lb->first; umi; umi = umi->next, i++) {
+      if (i == id)
+        return umi;
+    }
+  }
+
+  return NULL;
+}*/
+
+static bUserMenusGroup *rna_UserDef_usermenus_get_group(UserDef *userdef, const char *idname)
+{
+  return BKE_blender_user_menus_group_find(&userdef->user_menus_group, idname);
+}
+
+static void rna_UserDef_usermenus_set_group(UserDef *userdef, bUserMenusGroup *umg)
+{
+  userdef->runtime.umg_select = umg;
+}
+
+static void rna_UserDef_usermenus_add_group(UserDef *userdef)
+{
+  bUserMenusGroup *umg = BKE_blender_user_menus_group_new("new menu");
+  BLI_addtail(&userdef->user_menus_group, umg);
+  userdef->runtime.umg_select = umg;
+}
+
+static void rna_UserDef_usermenus_remove_group(UserDef *userdef)
+{
+  bUserMenusGroup *umg = userdef->runtime.umg_select;
+
+  userdef->runtime.umg_select = umg->prev;
+  if (!userdef->runtime.umg_select) {
+    userdef->runtime.umg_select = umg->next;
+    if (!userdef->runtime.umg_select) {
+      return;
+    }
+  }
+
+  BLI_remlink(&userdef->user_menus_group, umg);
+  BKE_blender_user_menu_free_list(&umg->menus);
+  MEM_freeN(umg);
+}
+
+static bool rna_UserDef_usermenus_has_item(UserDef *userdef)
+{
+  bUserMenu *bum = rna_UserDef_usermenus_get_current(userdef, false);
+  if (!bum)
+    return false;
+
+  ListBase *lb = &bum->items;
+  bUserMenuItem *umi = lb->first;
+  if (!umi)
+    return false;
+  return true;
+}
+
+static int rna_UserDef_usermenus_items_length(UserDef *userdef)
+{
+  bUserMenu *bum = rna_UserDef_usermenus_get_current(userdef, false);
+  if (!bum)
+    return 0;
+
+  ListBase *lb = &bum->items;
+  int i = 0;
+  for (bUserMenuItem *umi = lb->first; umi; umi = umi->next, i++)
+    ;
+  return i;
+}
+
+static int rna_UserDef_usermenus_spacetypes_get(PointerRNA *ptr)
+{
+  UserDef *userdef = (UserDef *)ptr->data;
+  int id = userdef->runtime.um_space_select;
+  id = (id <= 0) ? USER_SECTION_EDITING : id;
+  return id;
+}
+
+static void rna_UserDef_usermenus_active_item_set(PointerRNA *ptr, bool value)
+{
+  bUserMenuItem *umi = (bUserMenuItem *)ptr->data;
+
+  if (value) {
+    U.runtime.um_item_select = umi;
+  }
+  umi->is_selected = value;
+}
+
+static const EnumPropertyItem *rna_UserDef_usermenus_spacetypes_itemf(bContext *UNUSED(C),
+                                                                      PointerRNA *UNUSED(ptr),
+                                                                      PropertyRNA *UNUSED(prop),
+                                                                      bool *r_free)
+{
+  int totitem = 0;
+  EnumPropertyItem *item = NULL;
+  int i;
+  const ListBase *spacetypes = BKE_spacetypes_list();
+
+  SpaceType *st = NULL;
+  for (i = 0, st = spacetypes->first; st; st = st->next, i++) {
+    int id = st->spaceid;
+    EnumPropertyItem new_item = {id, st->name, 0, st->name, st->name};
+    RNA_enum_item_add(&item, &totitem, &new_item);
+  }
+
+#  ifndef NDEBUG
+  if (i == 0) {
+    EnumPropertyItem new_item = {i, "NO_SPACETYPE", 0, "No spacetype available", ""};
+    RNA_enum_item_add(&item, &totitem, &new_item);
+  }
+#  endif
+
+  RNA_enum_item_end(&item, &totitem);
+  *r_free = true;
+
+  return item;
+}
+
+static const EnumPropertyItem *rna_UserDef_usermenus_contexts_itemf(bContext *UNUSED(C),
+                                                                    PointerRNA *UNUSED(ptr),
+                                                                    PropertyRNA *UNUSED(prop),
+                                                                    bool *r_free)
+{
+  static const char *contexts_list[] = {
+      "mesh edit",           "curve edit",          "surface edit",        "text edit",
+      "armature edit",       "mball edit",          "lattice edit",        "pose mode",
+      "sculpt mode",         "weight paint",        "vertex paint",        "image paint",
+      "particle mode",       "object mode",         "greasepencil paint",  "greasepencil edit",
+      "greasepencil sculpt", "greasepencil weight", "greasepencil vertex", NULL,
+  };
+
+  int totitem = 0;
+  EnumPropertyItem *item = NULL;
+  int i;
+
+  for (i = 0; contexts_list[i]; i++) {
+    EnumPropertyItem new_item = {i, contexts_list[i], 0, contexts_list[i], contexts_list[i]};
+    RNA_enum_item_add(&item, &totitem, &new_item);
+  }
+
+#  ifndef NDEBUG
+  if (i == 0) {
+    EnumPropertyItem new_item = {i, "NO_CONTEXT", 0, "No context available", ""};
+    RNA_enum_item_add(&item, &totitem, &new_item);
+  }
+#  endif
+
+  RNA_enum_item_end(&item, &totitem);
+  *r_free = true;
+
+  return item;
+}
+
+static const EnumPropertyItem *rna_UserDef_icons_itemf(bContext *UNUSED(C),
+                                                       PointerRNA *UNUSED(ptr),
+                                                       PropertyRNA *UNUSED(prop),
+                                                       bool *r_free)
+{
+  int totitem = 0;
+  const EnumPropertyItem *list = rna_enum_icon_items;
+  EnumPropertyItem *item = NULL;
+
+  int i;
+
+  for (i = 0; list[i].identifier; i++) {
+    EnumPropertyItem new_item = {
+        list[i].value, list[i].identifier, list[i].value, list[i].name, list[i].description};
+    RNA_enum_item_add(&item, &totitem, &new_item);
+  }
+
+#  ifndef NDEBUG
+  if (i == 0) {
+    EnumPropertyItem new_item = {i, "NONE", 0, "No icons", ""};
+    RNA_enum_item_add(&item, &totitem, &new_item);
+  }
+#  endif
+
+  RNA_enum_item_end(&item, &totitem);
+  *r_free = true;
+
+  return item;
+}
+
+static void rna_UserDef_usermenus_item_add(UserDef *userdef, int index)
+{
+  bUserMenu *um = rna_UserDef_usermenus_get_current(userdef, true);
+  if (!um)
+    return;
+
+  ListBase *lb = &um->items;
+  bUserMenuItem_Op *umi = (bUserMenuItem_Op *)BKE_blender_user_menu_item_add(
+      NULL, USER_MENU_TYPE_OPERATOR);
+
+  if (index < 0)
+    BLI_addtail(lb, umi);
+  else {
+    int i = 0;
+    for (bUserMenuItem *insert = lb->first; insert; insert = insert->next, i++) {
+      if (i == index) {
+        BLI_insertlinkbefore(lb, insert, umi);
+        return;
+      }
+    }
+    BLI_addtail(lb, umi);
+  }
+
+  // basic operator setup
+  wmOperatorType *ot = WM_operatortype_find("OBJECT_OT_add", true);
+  STRNCPY(umi->item.ui_name, "new item");
+  STRNCPY(umi->op_idname, ot->idname);
+  userdef->runtime.um_item_select = &umi->item;
+}
+
+static void rna_UserDef_usermenus_item_remove(UserDef *userdef)
+{
+  bUserMenu *bum = rna_UserDef_usermenus_get_current(userdef, true);
+  bUserMenuItem *umi = userdef->runtime.um_item_select;
+  if (!bum || !umi)
+    return;
+
+  userdef->runtime.um_item_select = umi->next;
+  if (!userdef->runtime.um_item_select)
+    userdef->runtime.um_item_select = umi->prev;
+  ListBase *lb = (umi->parent) ? &umi->parent->items : &bum->items;
+  ED_screen_user_menu_item_remove(lb, umi);
+}
+
+static void rna_UserDef_usermenus_item_move(UserDef *userdef, bool up)
+{
+  bUserMenu *bum = rna_UserDef_usermenus_get_current(userdef, true);
+  bUserMenuItem *umi = userdef->runtime.um_item_select;
+  if (!bum || !umi)
+    return;
+
+  ListBase *lb = (umi->parent) ? &umi->parent->items : &bum->items;
+  bUserMenuItem *umi_toward = (up) ? umi->prev : umi->next;
+  BLI_remlink(lb, umi);
+
+  if (!umi_toward) {
+
+    if (!umi->parent)
+      return;
+    if (!umi->parent->item.parent) {
+      if (up)
+        BLI_insertlinkbefore(&bum->items, umi->parent, umi);
+      else
+        BLI_insertlinkafter(&bum->items, umi->parent, umi);
+      umi->parent = NULL;
+    }
+    else {
+      if (up)
+        BLI_insertlinkbefore(&umi->parent->item.parent->items, umi->parent, umi);
+      else
+        BLI_insertlinkafter(&umi->parent->item.parent->items, umi->parent, umi);
+      umi->parent = umi->parent->item.parent;
+    }
+  }
+  else if (umi_toward->type == USER_MENU_TYPE_SUBMENU) {
+    bUserMenuItem_SubMenu *umi_sm = (bUserMenuItem_SubMenu *)umi_toward;
+    if (up)
+      BLI_addtail(&umi_sm->items, umi);
+    else
+      BLI_addhead(&umi_sm->items, umi);
+    umi->parent = umi_sm;
+  }
+  else {
+
+    if (up)
+      BLI_insertlinkbefore(lb, umi->prev, umi);
+    else
+      BLI_insertlinkafter(lb, umi->next, umi);
+  }
+}
+
+static void rna_UserDef_usermenus_pie_item_add(UserDef *userdef, int index)
+{
+  bUserMenu *um = rna_UserDef_usermenus_get_current(userdef, true);
+  if (!um)
+    return;
+
+  bUserMenuItem_Op *umi = NULL;
+  ListBase *lb = &um->items;
+  bUserMenuItem *insert = lb->first;
+  int i = 0;
+  for (insert = lb->first; insert; insert = insert->next, i++) {
+    if (insert->type != USER_MENU_TYPE_SUBMENU)
+      continue;
+    bUserMenuItem_SubMenu *sm = (bUserMenuItem_SubMenu *)insert;
+    if (i == index) {
+      umi = (bUserMenuItem_Op *)BKE_blender_user_menu_item_add(&sm->items,
+                                                               USER_MENU_TYPE_OPERATOR);
+      break;
+    }
+  }
+
+  if (!umi)
+    return;
+
+  // basic operator setup
+  wmOperatorType *ot = WM_operatortype_find("OBJECT_OT_add", true);
+  STRNCPY(umi->item.ui_name, "new item");
+  STRNCPY(umi->op_idname, ot->idname);
+  umi->item.parent = (bUserMenuItem_SubMenu *)insert;
+  userdef->runtime.um_item_select = &umi->item;
+}
+
+static void rna_UserDef_usermenus_item_type_set(PointerRNA *ptr, int value)
+{
+  bUserMenuItem *umi = (bUserMenuItem *)ptr->data;
+  bUserMenu *bum = rna_UserDef_usermenus_get_current(&U, true);
+
+  if (!bum || !umi || umi->type == value)
+    return;
+
+  ListBase *lb = (!umi->parent) ? &bum->items : &umi->parent->items;
+  BLI_remlink(lb, umi);
+  bUserMenuItem *new_umi = BKE_blender_user_menu_item_add(NULL, value);
+  new_umi->parent = umi->parent;
+  if (value == USER_MENU_TYPE_SUBMENU) {
+    bUserMenuItem_SubMenu *umi_sm = (bUserMenuItem_SubMenu *)new_umi;
+    BLI_listbase_clear(&umi_sm->items);
+  }
+  BLI_insertlinkafter(lb, umi->prev, new_umi);
+  STRNCPY(new_umi->ui_name, umi->ui_name);
+  BKE_blender_user_menu_item_free(umi);
+  U.runtime.um_item_select = new_umi;
+}
+
+static int rna_UserDef_usermenus_item_type_get(PointerRNA *ptr)
+{
+  bUserMenuItem *data = (bUserMenuItem *)(ptr->data);
+  if (data)
+    return (int)(data->type);
+  return 0;
+}
+
+static void rna_UserDef_usermenus_item_name_get(PointerRNA *ptr, char *value)
+{
+  bUserMenuItem *umi = (bUserMenuItem *)(ptr->data);
+  
+  if (!*umi->ui_name) {
+    const char *name = " ";
+    if (umi->type == USER_MENU_TYPE_MENU) {
+      bUserMenuItem_Menu *umi_mt = (bUserMenuItem_Menu *)umi;
+      MenuType *mt = WM_menutype_find(umi_mt->mt_idname, true);
+      name = (const char *)CTX_IFACE_(mt->translation_context, mt->label);
+      BLI_strncpy(umi->ui_name, name, FILE_MAX);
+    }
+  }
+  BLI_strncpy(value, umi->ui_name, FILE_MAX);
+}
+
+static void rna_UserDef_usermenus_pie_set(PointerRNA *ptr, int value)
+{
+  bUserMenusGroup *umg = (bUserMenusGroup *)ptr->data;
+
+  LISTBASE_FOREACH (bUserMenu *, um, &umg->menus) {
+    ListBase *lb = &um->items;
+    BKE_blender_user_menu_item_free_list(lb);
+    if (value)
+      for (int i = 0; i < 8; i++) {
+        BKE_blender_user_menu_item_add(lb, USER_MENU_TYPE_SEP);
+      }
+  }
+  umg->type = value;
+}
+
+static PointerRNA rna_UserDef_usermenus_item_op_prop_get(PointerRNA *ptr)
+{
+  bUserMenuItem_Op *umi_op = ptr->data;
+
+  if (umi_op->ptr) {
+    return *(umi_op->ptr);
+  }
+  return PointerRNA_NULL;
+}
+
+static void rna_UserDef_usermenus_group_idname_set(Main *bmain,
+                                                   Scene *UNUSED(scene),
+                                                   PointerRNA *ptr)
+{
+  bUserMenusGroup *umg = (bUserMenusGroup *)ptr->data;
+#  if 0
+  const char *name = umg->name;
+#  endif
+  char old[64] = {'\0'};
+
+  STRNCPY(old, umg->idname);
+  BKE_blender_user_menus_group_idname_update(umg);
+  BKE_blender_user_menus_group_idname_update_keymap(bmain->wm.first, old, umg->idname);
+}
+
+static void rna_UserDef_usermenus_item_op_get(PointerRNA *ptr, char *value)
+{
+  bUserMenuItem_Op *umi_op = ptr->data;
+  WM_operator_py_idname(value, umi_op->op_idname);
+}
+
+static int rna_UserDef_usermenus_item_op_length(PointerRNA *ptr)
+{
+  bUserMenuItem_Op *umi_op = ptr->data;
+  char pyname[OP_MAX_TYPENAME];
+
+  WM_operator_py_idname(pyname, umi_op->op_idname);
+  return strlen(pyname);
+}
+
+static void rna_UserDef_usermenus_item_op_set(PointerRNA *ptr, const char *value)
+{
+  bUserMenuItem_Op *umi_op = (bUserMenuItem_Op *)ptr->data;
+  char idname_bl[OP_MAX_TYPENAME];
+
+  wmOperatorType *origin_ot = WM_operatortype_find(umi_op->op_idname, true);
+  wmOperatorType *ot = WM_operatortype_find(value, false);
+  if (origin_ot == ot || ot == NULL)
+    return;
+
+  WM_operator_bl_idname(idname_bl, value);
+  WM_operator_py_idname(umi_op->op_idname, value);
+
+  if (LIKELY(umi_op->ptr)) {
+    WM_operator_properties_free(umi_op->ptr);
+    MEM_freeN(umi_op->ptr);
+
+    umi_op->ptr = NULL;
+  }
+  umi_op->prop = NULL;
+
+  WM_operator_properties_alloc(&(umi_op->ptr), &(umi_op->prop), idname_bl);
+  WM_operator_properties_sanitize(umi_op->ptr, 1);
+}
+
+static void rna_UserDef_usermenu_draw(UserDef *UNUSED(userdef),
+                                      bContext *C,
+                                      uiLayout *layout,
+                                      bUserMenusGroup *umg)
+{
+  screen_user_menu_draw_begin(C, layout, true, umg);
+}
+
+/* UserMenu.menu_items */
+
+static void rna_UserDef_usermenu_items_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
+{
+  bUserMenu *bum = (bUserMenu *)ptr->data;
+  rna_iterator_listbase_begin(iter, &bum->items, NULL);
+}
+
+static void rna_UserDef_usermenu_submenu_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
+{
+  bUserMenuItem_SubMenu *umi_sm = (bUserMenuItem_SubMenu *)ptr->data;
+  rna_iterator_listbase_begin(iter, &umi_sm->items, NULL);
+}
+
+static bUserMenuItem_Op *rna_UserDef_usermenus_item_operator_get(bUserMenuItem *umi)
+{
+  if (umi->type == USER_MENU_TYPE_OPERATOR)
+    return (bUserMenuItem_Op *)umi;
+  return NULL;
+}
+
+static bUserMenuItem_Menu *rna_UserDef_usermenus_item_menu_get(bUserMenuItem *umi)
+{
+  if (umi->type == USER_MENU_TYPE_MENU)
+    return (bUserMenuItem_Menu *)umi;
+  return NULL;
+}
+
+static bUserMenuItem_Prop *rna_UserDef_usermenus_item_property_get(bUserMenuItem *umi)
+{
+  if (umi->type == USER_MENU_TYPE_PROP)
+    return (bUserMenuItem_Prop *)umi;
+  return NULL;
+}
+
+static bUserMenuItem_SubMenu *rna_UserDef_usermenus_item_submenu_get(bUserMenuItem *umi)
+{
+  if (umi->type == USER_MENU_TYPE_SUBMENU)
+    return (bUserMenuItem_SubMenu *)umi;
+  return NULL;
+}
+
+/* UserMenus.menus */
+
+static void rna_UserDef_usermenu_menus_begin(CollectionPropertyIterator *iter, PointerRNA *ptr)
+{
+  UserDef *userdef = (UserDef *)ptr->data;
+  rna_iterator_listbase_begin(iter, &userdef->user_menus_group, NULL);
+}
+
 int rna_show_statusbar_vram_editable(struct PointerRNA *UNUSED(ptr), const char **UNUSED(r_info))
 {
   return GPU_mem_stats_supported() ? PROP_EDITABLE : 0;
@@ -5910,6 +6462,384 @@ static void rna_def_userdef_keymap(BlenderRNA *brna)
   RNA_def_property_ui_text(prop, "Key Config", "The name of the active key configuration");
 }
 
+static void rna_def_userdef_usermenus_items_subtypes(BlenderRNA *brna)
+{
+  StructRNA *srna;
+  PropertyRNA *prop;
+
+  /* operator item */
+  srna = RNA_def_struct(brna, "um_item_op", NULL);
+  RNA_def_struct_sdna(srna, "bUserMenuItem_Op");
+  RNA_def_struct_ui_text(
+      srna, "User Menu operator item", "an item of the user menus that can store an operator");
+
+  prop = RNA_def_property(srna, "item", PROP_POINTER, PROP_NONE);
+  RNA_def_property_pointer_sdna(prop, NULL, "item");
+  RNA_def_property_struct_type(prop, "UserMenuItem");
+  RNA_def_property_ui_text(prop, "item", "");
+
+  prop = RNA_def_property(srna, "operator", PROP_STRING, PROP_NONE);
+  RNA_def_property_string_sdna(prop, NULL, "op_idname");
+  RNA_def_property_ui_text(prop, "operator", "the operator that will be executed");
+  RNA_def_property_string_funcs(prop,
+                                "rna_UserDef_usermenus_item_op_get",
+                                "rna_UserDef_usermenus_item_op_length",
+                                "rna_UserDef_usermenus_item_op_set");
+  RNA_def_struct_name_property(srna, prop);
+
+  prop = RNA_def_property(srna, "prop", PROP_POINTER, PROP_NONE);
+  RNA_def_property_pointer_sdna(prop, NULL, "prop");
+  RNA_def_property_struct_type(prop, "OperatorProperties");
+  RNA_def_property_ui_text(prop, "properties", "properties of the operator");
+  RNA_def_property_pointer_funcs(prop, "rna_UserDef_usermenus_item_op_prop_get", NULL, NULL, NULL);
+
+  /* menu item */
+  srna = RNA_def_struct(brna, "um_item_menu", NULL);
+  RNA_def_struct_sdna(srna, "bUserMenuItem_Menu");
+  RNA_def_struct_ui_text(
+      srna, "User Menu menu item", "an item of the user menus that can store a submenu");
+
+  prop = RNA_def_property(srna, "item", PROP_POINTER, PROP_NONE);
+  RNA_def_property_pointer_sdna(prop, NULL, "item");
+  RNA_def_property_struct_type(prop, "UserMenuItem");
+  RNA_def_property_ui_text(prop, "item", "");
+
+  prop = RNA_def_property(srna, "id_name", PROP_STRING, PROP_NONE);
+  RNA_def_property_string_sdna(prop, NULL, "mt_idname");
+  RNA_def_property_ui_text(prop, "id name", "the menu id name");
+  RNA_def_struct_name_property(srna, prop);
+
+  /* prop item */
+  srna = RNA_def_struct(brna, "um_item_prop", NULL);
+  RNA_def_struct_sdna(srna, "bUserMenuItem_Prop");
+  RNA_def_struct_ui_text(
+      srna, "User Menu property item", "an item of the user menus that can store a property");
+
+  prop = RNA_def_property(srna, "item", PROP_POINTER, PROP_NONE);
+  RNA_def_property_pointer_sdna(prop, NULL, "item");
+  RNA_def_property_struct_type(prop, "UserMenuItem");
+  RNA_def_property_ui_text(prop, "item", "");
+
+  prop = RNA_def_property(srna, "id_name", PROP_STRING, PROP_NONE);
+  RNA_def_property_string_sdna(prop, NULL, "prop_id");
+  RNA_def_property_ui_text(prop, "id name", "the property id name");
+  RNA_def_struct_name_property(srna, prop);
+
+  prop = RNA_def_property(srna, "context", PROP_STRING, PROP_NONE);
+  RNA_def_property_string_sdna(prop, NULL, "context_data_path");
+  RNA_def_property_ui_text(prop, "context", "the context data path of the property");
+  RNA_def_struct_name_property(srna, prop);
+
+  /* sub menu item */
+  srna = RNA_def_struct(brna, "um_item_submenu", NULL);
+  RNA_def_struct_sdna(srna, "bUserMenuItem_SubMenu");
+  RNA_def_struct_ui_text(
+      srna, "User Menu sub menu item", "an item of the user menus that can store a sub menu");
+
+  prop = RNA_def_property(srna, "item", PROP_POINTER, PROP_NONE);
+  RNA_def_property_pointer_sdna(prop, NULL, "item");
+  RNA_def_property_struct_type(prop, "UserMenuItem");
+  RNA_def_property_ui_text(prop, "item", "");
+
+  prop = RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
+  RNA_def_property_string_sdna(prop, NULL, "name");
+  RNA_def_property_ui_text(prop, "name", "the sub menu name");
+  RNA_def_struct_name_property(srna, prop);
+
+  prop = RNA_def_property(srna, "items_list", PROP_COLLECTION, PROP_NONE);
+  RNA_def_property_struct_type(prop, "UserMenuItem");
+  RNA_def_property_ui_text(prop, "sub menu items", "list of the items of the sub menu");
+  RNA_def_property_collection_funcs(prop,
+                                    "rna_UserDef_usermenu_submenu_begin",
+                                    "rna_iterator_listbase_next",
+                                    NULL,
+                                    "rna_iterator_listbase_get",
+                                    NULL,
+                                    NULL,
+                                    NULL,
+                                    NULL);
+}
+
+static void rna_def_userdef_usermenu(BlenderRNA *brna)
+{
+  StructRNA *srna;
+  PropertyRNA *prop;
+  FunctionRNA *func;
+  PropertyRNA *parm;
+
+  /* user menu */
+  srna = RNA_def_struct(brna, "UserMenu", NULL);
+  RNA_def_struct_sdna(srna, "bUserMenu");
+  RNA_def_struct_ui_text(srna, "User Menu", "an user menu");
+
+  prop = RNA_def_property(srna, "spacetype", PROP_INT, PROP_NONE);
+  RNA_def_property_int_sdna(prop, NULL, "space_type");
+  RNA_def_property_ui_text(prop, "Space Type", "The Space type the user menu will be used in");
+
+  prop = RNA_def_property(srna, "context", PROP_STRING, PROP_NONE);
+  RNA_def_property_string_sdna(prop, NULL, "context");
+  RNA_def_property_ui_text(prop, "Context", "The Context the user menu will be used in");
+  RNA_def_struct_name_property(srna, prop);
+
+  prop = RNA_def_property(srna, "menu_items", PROP_COLLECTION, PROP_NONE);
+  RNA_def_property_struct_type(prop, "UserMenuItem");
+  RNA_def_property_ui_text(prop, "Items", "list of the items of the menu");
+  RNA_def_property_collection_funcs(prop,
+                                    "rna_UserDef_usermenu_items_begin",
+                                    "rna_iterator_listbase_next",
+                                    NULL,
+                                    "rna_iterator_listbase_get",
+                                    NULL,
+                                    NULL,
+                                    NULL,
+                                    NULL);
+
+  /* user menu item */
+  static const EnumPropertyItem um_item_type[] = {
+      {USER_MENU_TYPE_OPERATOR, "OPERATOR", 0, "Operator", "Operator"},
+      {USER_MENU_TYPE_PROP, "PROPERTY", 0, "Property", "Property"},
+      {USER_MENU_TYPE_SUBMENU, "SUBMENU", 0, "Menu", "Menu"},
+      {USER_MENU_TYPE_MENU, "MENU", 0, "Packed Menu", "Packed Menu"},
+      {USER_MENU_TYPE_SEP, "SEPARATOR", 0, "Separator", "Separator"},
+      {0, NULL, 0, NULL, NULL},
+  };
+
+  srna = RNA_def_struct(brna, "UserMenuItem", NULL);
+  RNA_def_struct_sdna(srna, "bUserMenuItem");
+  RNA_def_struct_ui_text(srna, "User Menu Item", "User Menu item");
+
+  prop = RNA_def_property(srna, "next", PROP_POINTER, PROP_NONE);
+  RNA_def_property_pointer_sdna(prop, NULL, "next");
+  RNA_def_property_struct_type(prop, "UserMenuItem");
+  RNA_def_property_ui_text(prop, "item", "");
+
+  prop = RNA_def_property(srna, "prev", PROP_POINTER, PROP_NONE);
+  RNA_def_property_pointer_sdna(prop, NULL, "prev");
+  RNA_def_property_struct_type(prop, "UserMenuItem");
+  RNA_def_property_ui_text(prop, "item", "");
+
+  prop = RNA_def_property(srna, "parent", PROP_POINTER, PROP_NONE);
+  RNA_def_property_pointer_sdna(prop, NULL, "parent");
+  RNA_def_property_struct_type(prop, "um_item_submenu");
+  RNA_def_property_ui_text(prop, "item", "");
+
+  prop = RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
+  RNA_def_property_string_sdna(prop, NULL, "ui_name");
+  RNA_def_property_string_funcs(prop, "rna_UserDef_usermenus_item_name_get", NULL, NULL);
+  RNA_def_property_ui_text(prop, "Name", "Name of the item");
+  RNA_def_struct_name_property(srna, prop);
+
+  prop = RNA_def_property(srna, "type", PROP_ENUM, PROP_NONE);
+  RNA_def_property_enum_sdna(prop, NULL, "type");
+  RNA_def_property_enum_items(prop, um_item_type);
+  RNA_def_property_enum_funcs(
+      prop, "rna_UserDef_usermenus_item_type_get", "rna_UserDef_usermenus_item_type_set", NULL);
+  RNA_def_property_ui_text(prop, "type", "the type of item");
+
+  prop = RNA_def_property(srna, "icon", PROP_ENUM, PROP_NONE);
+  RNA_def_property_enum_sdna(prop, NULL, "icon");
+  RNA_def_property_enum_items(prop, rna_enum_icon_items);
+  RNA_def_property_enum_default(prop, ICON_NONE);
+  RNA_def_property_enum_funcs(prop, NULL, NULL, "rna_UserDef_icons_itemf");
+  RNA_def_property_ui_text(prop, "Icon", "The item icon");
+
+  prop = RNA_def_property(srna, "is_selected", PROP_BOOLEAN, PROP_NONE);
+  RNA_def_property_boolean_sdna(prop, NULL, "is_selected", 0);
+  RNA_def_property_ui_text(prop, "is selected", "is selected");
+  RNA_def_property_boolean_funcs(prop, NULL, "rna_UserDef_usermenus_active_item_set");
+
+  func = RNA_def_function(srna, "get_operator", "rna_UserDef_usermenus_item_operator_get");
+  RNA_def_function_ui_description(func, "return the operator item");
+  parm = RNA_def_pointer(func, "item_op", "um_item_op", "", "the item operator");
+  RNA_def_function_return(func, parm);
+
+  func = RNA_def_function(srna, "get_menu", "rna_UserDef_usermenus_item_menu_get");
+  RNA_def_function_ui_description(func, "return the operator menu");
+  parm = RNA_def_pointer(func, "item_menu", "um_item_menu", "", "the item menu");
+  RNA_def_function_return(func, parm);
+
+  func = RNA_def_function(srna, "get_property", "rna_UserDef_usermenus_item_property_get");
+  RNA_def_function_ui_description(func, "return the operator property");
+  parm = RNA_def_pointer(func, "item_prop", "um_item_prop", "", "the item property");
+  RNA_def_function_return(func, parm);
+
+  func = RNA_def_function(srna, "get_submenu", "rna_UserDef_usermenus_item_submenu_get");
+  RNA_def_function_ui_description(func, "return the submenu");
+  parm = RNA_def_pointer(func, "item_submenu", "um_item_submenu", "", "the item submenu");
+  RNA_def_function_return(func, parm);
+
+  rna_def_userdef_usermenus_items_subtypes(brna);
+}
+
+static void rna_def_userdef_usermenusgroup(BlenderRNA *brna)
+{
+  StructRNA *srna;
+  PropertyRNA *prop;
+
+  static const EnumPropertyItem um_menu_type[] = {
+      {0, "LIST", 0, "List", "List"},
+      {1, "PIE", 0, "Pie", "Pie"},
+      {0, NULL, 0, NULL, NULL},
+  };
+
+  /* user menus group */
+  srna = RNA_def_struct(brna, "UserMenusGroup", NULL);
+  RNA_def_struct_sdna(srna, "bUserMenusGroup");
+  RNA_def_struct_ui_text(srna, "User Menus Group", "A whole displayble user menu");
+
+  prop = RNA_def_property(srna, "name", PROP_STRING, PROP_NONE);
+  RNA_def_property_string_sdna(prop, NULL, "name");
+  RNA_def_property_ui_text(prop, "Name", "Name of the user menu group");
+  RNA_def_struct_name_property(srna, prop);
+  RNA_def_property_update(prop, 0, "rna_UserDef_usermenus_group_idname_set");
+
+  prop = RNA_def_property(srna, "idname", PROP_STRING, PROP_NONE);
+  RNA_def_property_string_sdna(prop, NULL, "idname");
+  RNA_def_property_ui_text(prop, "ID Name", "ID Name of the user menu group");
+  RNA_def_struct_name_property(srna, prop);
+
+  prop = RNA_def_property(srna, "type", PROP_ENUM, PROP_NONE);
+  RNA_def_property_enum_sdna(prop, NULL, "type");
+  RNA_def_property_enum_items(prop, um_menu_type);
+  RNA_def_property_ui_text(prop, "menu type", "change menu type between list and pie");
+  RNA_def_property_enum_funcs(prop, NULL, "rna_UserDef_usermenus_pie_set", NULL);
+
+  prop = RNA_def_property(srna, "menus", PROP_COLLECTION, PROP_NONE);
+  RNA_def_property_struct_type(prop, "UserMenu");
+  RNA_def_property_ui_text(prop, "User Menu", "list of user sub menus contained in the group");
+}
+
+static void rna_def_userdef_usermenus_editor(BlenderRNA *brna)
+{
+  PropertyRNA *prop;
+  FunctionRNA *func;
+  PropertyRNA *parm;
+
+  static const EnumPropertyItem um_space_default[] = {
+      {0, "NULL", 0, "None", "No spacetypes found"},
+      {0, NULL, 0, NULL, NULL},
+  };
+
+  static const EnumPropertyItem um_context_default[] = {
+      {0, "NULL", 0, "None", "No context found"},
+      {0, NULL, 0, NULL, NULL},
+  };
+
+  StructRNA *srna = RNA_def_struct(brna, "PreferencesUserMenus", NULL);
+  RNA_def_struct_sdna(srna, "UserDef");
+  RNA_def_struct_nested(brna, srna, "Preferences");
+  RNA_def_struct_clear_flag(srna, STRUCT_UNDO);
+  RNA_def_struct_ui_text(srna, "User Menus", "User Menus editor");
+
+  prop = RNA_def_property(srna, "space_selected", PROP_ENUM, PROP_NONE);
+  RNA_def_property_enum_sdna(prop, NULL, "runtime.um_space_select");
+  RNA_def_property_enum_items(prop, um_space_default);
+  RNA_def_property_enum_funcs(prop,
+                              "rna_UserDef_usermenus_spacetypes_get",
+                              NULL,
+                              "rna_UserDef_usermenus_spacetypes_itemf");
+  RNA_def_property_ui_text(prop, "space type selected", "the space type selected");
+  RNA_def_property_update(prop, 0, "rna_userdef_update");
+
+  prop = RNA_def_property(srna, "context_selected", PROP_ENUM, PROP_NONE);
+  RNA_def_property_enum_sdna(prop, NULL, "runtime.um_context_select");
+  RNA_def_property_enum_items(prop, um_context_default);
+  RNA_def_property_enum_funcs(prop, NULL, NULL, "rna_UserDef_usermenus_contexts_itemf");
+  RNA_def_property_ui_text(prop, "context selected", "the context selected");
+  RNA_def_property_update(prop, 0, "rna_userdef_update");
+
+  prop = RNA_def_property(srna, "active_item", PROP_POINTER, PROP_NONE);
+  RNA_def_property_pointer_sdna(prop, NULL, "runtime.um_item_select");
+  RNA_def_property_struct_type(prop, "UserMenuItem");
+  RNA_def_property_ui_text(prop, "item", "");
+
+  prop = RNA_def_property(srna, "active_group", PROP_POINTER, PROP_NONE);
+  RNA_def_property_flag(prop, PROP_NEVER_NULL);
+  RNA_def_property_flag(prop, PROP_EDITABLE);
+  RNA_def_property_pointer_sdna(prop, NULL, "runtime.umg_select");
+  RNA_def_property_struct_type(prop, "UserMenusGroup");
+  RNA_def_property_ui_text(prop, "active user menus group", "active user menus group");
+
+  prop = RNA_def_property(srna, "menus", PROP_COLLECTION, PROP_NONE);
+  RNA_def_property_struct_type(prop, "UserMenusGroup");
+  RNA_def_property_ui_text(prop, "Menus", "list of the menus");
+  RNA_def_property_collection_funcs(prop,
+                                    "rna_UserDef_usermenu_menus_begin",
+                                    "rna_iterator_listbase_next",
+                                    "rna_iterator_listbase_end",
+                                    "rna_iterator_listbase_get",
+                                    NULL,
+                                    NULL,
+                                    NULL,
+                                    NULL);
+
+  prop = RNA_def_property(srna, "expanded", PROP_BOOLEAN, PROP_NONE);
+  RNA_def_property_boolean_sdna(prop, NULL, "runtime.um_expanded", 0);
+  RNA_def_property_ui_text(prop, "Items Expanded", "Expanded in the user interface");
+  RNA_def_property_ui_icon(prop, ICON_DISCLOSURE_TRI_RIGHT, 1);
+
+  rna_def_userdef_usermenu(brna);
+  rna_def_userdef_usermenusgroup(brna);
+
+  // functions
+  func = RNA_def_function(srna, "get_current_menu", "rna_UserDef_usermenus_get_current");
+  RNA_def_function_ui_description(func, "get active user menu");
+  parm = RNA_def_boolean(func, "ensure", false, "ensure", "create the menu if don't exist");
+  parm = RNA_def_pointer(func, "current_menu", "UserMenu", "", "the menu");
+  RNA_def_function_return(func, parm);
+
+  func = RNA_def_function(srna, "get_group", "rna_UserDef_usermenus_get_group");
+  RNA_def_function_ui_description(func, "get user menus group by idname");
+  parm = RNA_def_string(func, "idname", NULL, 0, "ID name", "ID name of the group");
+  parm = RNA_def_pointer(func, "menu", "UserMenusGroup", "", "the menu group");
+  RNA_def_function_return(func, parm);
+
+  func = RNA_def_function(srna, "set_group", "rna_UserDef_usermenus_set_group");
+  RNA_def_function_ui_description(func, "set the group menu to edit");
+  parm = RNA_def_pointer(func, "new_group", "UserMenusGroup", "", "the group menu");
+
+  func = RNA_def_function(srna, "add_group", "rna_UserDef_usermenus_add_group");
+  RNA_def_function_ui_description(func, "add a group");
+
+  func = RNA_def_function(srna, "remove_group", "rna_UserDef_usermenus_remove_group");
+  RNA_def_function_ui_description(func, "remove a group");
+
+  func = RNA_def_function(srna, "items_len", "rna_UserDef_usermenus_items_length");
+  RNA_def_function_ui_description(func, "Refresh custom menu editor");
+  parm = RNA_def_int(func, "len", 0, 0, 1000, "", "the list len", 0, 1000);
+  RNA_def_function_return(func, parm);
+
+  func = RNA_def_function(srna, "has_item", "rna_UserDef_usermenus_has_item");
+  RNA_def_function_ui_description(func, "the current list has items");
+  parm = RNA_def_boolean(func, "has_item", false, "", "is there items in the current list ?");
+  RNA_def_function_return(func, parm);
+
+  func = RNA_def_function(srna, "item_add", "rna_UserDef_usermenus_item_add");
+  RNA_def_function_ui_description(func, "add an item to a menu");
+  parm = RNA_def_int(func, "index", 0, -1, 1000, "index", "index to insert the item", -1, 1000);
+
+  func = RNA_def_function(srna, "item_remove", "rna_UserDef_usermenus_item_remove");
+  RNA_def_function_ui_description(func, "remove an item from a user menu");
+
+  func = RNA_def_function(srna, "item_move", "rna_UserDef_usermenus_item_move");
+  RNA_def_function_ui_description(func, "up an item");
+  parm = RNA_def_boolean(func, "up", false, "", "go up ?");
+  RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
+
+  func = RNA_def_function(srna, "pie_item_add", "rna_UserDef_usermenus_pie_item_add");
+  RNA_def_function_ui_description(func, "add an item to a menu");
+  parm = RNA_def_int(func, "index", 0, -1, 1000, "index", "index to insert the item", -1, 1000);
+
+  func = RNA_def_function(srna, "draw_menu", "rna_UserDef_usermenu_draw");
+  RNA_def_function_ui_description(func, "draw items of usermenu");
+  parm = RNA_def_pointer(func, "context", "Context", "", "context");
+  RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
+  parm = RNA_def_pointer(func, "layout", "UILayout", "", "layout");
+  RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
+  parm = RNA_def_pointer(func, "menu", "UserMenusGroup", "", "menu");
+  RNA_def_parameter_flags(parm, 0, PARM_REQUIRED);
+}
+
 static void rna_def_userdef_filepaths(BlenderRNA *brna)
 {
   PropertyRNA *prop;
@@ -6248,6 +7178,12 @@ void RNA_def_userdef(BlenderRNA *brna)
   RNA_def_property_pointer_funcs(prop, "rna_UserDef_keymap_get", NULL, NULL, NULL);
   RNA_def_property_ui_text(prop, "Keymap", "Shortcut setup for keyboards and other input devices");
 
+  prop = RNA_def_property(srna, "user_menus", PROP_POINTER, PROP_NONE);
+  RNA_def_property_flag(prop, PROP_NEVER_NULL);
+  RNA_def_property_struct_type(prop, "PreferencesUserMenus");
+  RNA_def_property_pointer_funcs(prop, "rna_UserDef_user_menus_get", NULL, NULL, NULL);
+  RNA_def_property_ui_text(prop, "User Menus", "User Menus Editor");
+
   prop = RNA_def_property(srna, "filepaths", PROP_POINTER, PROP_NONE);
   RNA_def_property_flag(prop, PROP_NEVER_NULL);
   RNA_def_property_struct_type(prop, "PreferencesFilePaths");
@@ -6315,6 +7251,7 @@ void RNA_def_userdef(BlenderRNA *brna)
   rna_def_userdef_edit(brna);
   rna_def_userdef_input(brna);
   rna_def_userdef_keymap(brna);
+  rna_def_userdef_usermenus_editor(brna);
   rna_def_userdef_filepaths(brna);
   rna_def_userdef_system(brna);
   rna_def_userdef_addon(brna);

source/blender/windowmanager/intern/wm_files.c

@@ -1841,6 +1841,8 @@ static void rna_struct_update_when_changed(bContext *C,
                                            PointerRNA *ptr_b)
 {
   CollectionPropertyIterator iter;
+  if (!ptr_a->data || !ptr_b->data)
+    return;
   PropertyRNA *iterprop = RNA_struct_iterator_property(ptr_a->type);
   BLI_assert(ptr_a->type == ptr_b->type);
   RNA_property_collection_begin(ptr_a, iterprop, &iter);