e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
150 lines
3.9 KiB
Python
150 lines
3.9 KiB
Python
# SPDX-FileCopyrightText: 2017-2023 Blender Authors
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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# -----------------------------------------------------------------------------
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# AppOverrideState
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class AppOverrideState:
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"""
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Utility class to encapsulate overriding the application state
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so that settings can be restored afterwards.
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"""
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__slots__ = (
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# setup_classes
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"_class_store",
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# setup_ui_ignore
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"_ui_ignore_store",
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# setup_addons
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"_addon_store",
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)
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# ---------
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# Callbacks
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#
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# Set as None, to make it simple to check if they're being overridden.
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# setup/teardown classes
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class_ignore = None
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# setup/teardown ui_ignore
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ui_ignore_classes = None
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ui_ignore_operator = None
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ui_ignore_property = None
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ui_ignore_menu = None
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ui_ignore_label = None
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addon_paths = None
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addons = None
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# End callbacks
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def __init__(self):
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self._class_store = None
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self._addon_store = None
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self._ui_ignore_store = None
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def _setup_classes(self):
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assert self._class_store is None
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self._class_store = self.class_ignore()
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from bpy.utils import unregister_class
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for cls in self._class_store:
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unregister_class(cls)
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def _teardown_classes(self):
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assert self._class_store is not None
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from bpy.utils import register_class
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for cls in self._class_store:
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register_class(cls)
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self._class_store = None
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def _setup_ui_ignore(self):
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import bl_app_override
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self._ui_ignore_store = bl_app_override.ui_draw_filter_register(
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ui_ignore_classes=(
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None if self.ui_ignore_classes is None
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else self.ui_ignore_classes()
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),
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ui_ignore_operator=self.ui_ignore_operator,
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ui_ignore_property=self.ui_ignore_property,
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ui_ignore_menu=self.ui_ignore_menu,
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ui_ignore_label=self.ui_ignore_label,
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)
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def _teardown_ui_ignore(self):
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import bl_app_override
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bl_app_override.ui_draw_filter_unregister(
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self._ui_ignore_store
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)
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self._ui_ignore_store = None
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def _setup_addons(self):
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import sys
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sys_path = []
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if self.addon_paths is not None:
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for path in self.addon_paths():
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if path not in sys.path:
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sys.path.append(path)
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import addon_utils
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addons = []
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if self.addons is not None:
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addons.extend(self.addons())
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for addon in addons:
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addon_utils.enable(addon)
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self._addon_store = {
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"sys_path": sys_path,
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"addons": addons,
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}
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def _teardown_addons(self):
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import sys
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sys_path = self._addon_store["sys_path"]
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for path in sys_path:
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# should always succeed, but if not it doesn't matter
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# (someone else was changing the sys.path), ignore!
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try:
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sys.path.remove(path)
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except:
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pass
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addons = self._addon_store["addons"]
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import addon_utils
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for addon in addons:
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addon_utils.disable(addon)
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self._addon_store.clear()
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self._addon_store = None
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def setup(self):
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if self.class_ignore is not None:
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self._setup_classes()
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if any((self.addon_paths,
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self.addons,
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)):
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self._setup_addons()
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if any((self.ui_ignore_operator,
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self.ui_ignore_property,
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self.ui_ignore_menu,
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self.ui_ignore_label,
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)):
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self._setup_ui_ignore()
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def teardown(self):
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if self._class_store is not None:
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self._teardown_classes()
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if self._addon_store is not None:
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self._teardown_addons()
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if self._ui_ignore_store is not None:
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self._teardown_ui_ignore()
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