Move disconnected helper to utils

Author: ales-erjavec

Orange/widgets/data/oweditdomain.py

@@ -8,7 +8,6 @@
 import warnings
 from xml.sax.saxutils import escape
 from itertools import zip_longest, repeat, chain
-from contextlib import contextmanager
 from collections import namedtuple, Counter
 from functools import singledispatch, partial
 from typing import (
@@ -44,7 +43,7 @@
 from Orange.misc.collections import DictMissingConst
 from Orange.util import frompyfunc
 from Orange.widgets import widget, gui, settings
-from Orange.widgets.utils import itemmodels, ftry
+from Orange.widgets.utils import itemmodels, ftry, disconnected
 from Orange.widgets.utils.buttons import FixedSizeButton
 from Orange.widgets.utils.itemmodels import signal_blocking
 from Orange.widgets.utils.widgetpreview import WidgetPreview
@@ -870,15 +869,6 @@ def get_dialog_settings(self) -> Dict[str, Any]:
         return settings_dict
 
 
-@contextmanager
-def disconnected(signal, slot, connection_type=Qt.AutoConnection):
-    signal.disconnect(slot)
-    try:
-        yield
-    finally:
-        signal.connect(slot, connection_type)
-
-
 #: In 'reordable' models holds the original position of the item
 #: (if applicable).
 SourcePosRole = Qt.UserRole

Orange/widgets/utils/__init__.py

@@ -1,13 +1,14 @@
 import inspect
 import sys
 from collections import deque
+from contextlib import contextmanager
 from enum import Enum, IntEnum
 from typing import (
     TypeVar, Callable, Any, Iterable, Optional, Hashable, Type, Union, Tuple
 )
 from xml.sax.saxutils import escape
 
-from AnyQt.QtCore import QObject
+from AnyQt.QtCore import QObject, Qt
 
 from Orange.data.variable import TimeVariable
 from Orange.util import deepgetattr
@@ -194,3 +195,12 @@ def enum2int(enum: Union[Enum, IntEnum]) -> int:
     Settings transformed to int
     """
     return int(enum) if isinstance(enum, int) else enum.value
+
+
+@contextmanager
+def disconnected(signal, slot, connection_type=Qt.AutoConnection):
+    signal.disconnect(slot)
+    try:
+        yield
+    finally:
+        signal.connect(slot, connection_type)