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# SPDX-License-Identifier: GPL-2.0-or-later
"""
This module contains RestrictBlend context manager.
"""
__all__ = (
"RestrictBlend",
)
import bpy as _bpy
class _RestrictContext:
__slots__ = ()
_real_data = _bpy.data
# safe, the pointer never changes
_real_pref = _bpy.context.preferences
@property
def window_manager(self):
return self._real_data.window_managers[0]
@property
def preferences(self):
return self._real_pref
class _RestrictData:
__slots__ = ()
_context_restrict = _RestrictContext()
_data_restrict = _RestrictData()
class RestrictBlend:
__slots__ = ("context", "data")
def __enter__(self):
self.data = _bpy.data
self.context = _bpy.context
_bpy.data = _data_restrict
_bpy.context = _context_restrict
def __exit__(self, type, value, traceback):
_bpy.data = self.data
_bpy.context = self.context
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