reduce code duplication between stringwidget and filenamewidget

src/ess/reduce/widgets/__init__.py

@@ -26,7 +26,7 @@
 from ._linspace_widget import LinspaceWidget
 from ._vector_widget import VectorWidget
 from ._bounds_widget import BoundsWidget
-from ._string_widget import StringWidget, MultiStringWidget
+from ._string_widget import MultiStringWidget, StringWidget
 from ._switchable_widget import SwitchWidget
 from ._optional_widget import OptionalWidget
 
@@ -102,27 +102,6 @@ def boolean_parameter_widget(param: BooleanParameter):
     )
 
 
-# @create_parameter_widget.register(StringParameter)
-# def string_parameter_widget(param: StringParameter):
-#     name = param.name
-#     description = param.description
-#     if param.switchable:
-#         return widgets.Text(
-#             description=name,
-#             tooltip=description,
-#             layout=default_layout,
-#             style=default_style,
-#         )
-#     else:
-#         return widgets.Text(
-#             value=param.default,
-#             description=name,
-#             tooltip=description,
-#             layout=default_layout,
-#             style=default_style,
-#         )
-
-
 @create_parameter_widget.register(StringParameter)
 def string_parameter_widget(param: StringParameter):
     return StringWidget(

src/ess/reduce/widgets/_filename_widget.py

@@ -1,40 +1,10 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright (c) 2024 Scipp contributors (https://github.com/scipp)
-# import scipp as sc
-from ipywidgets import HBox, Text, ValueWidget
 
-from ._config import default_layout
+from ._string_widget import MultiStringWidget, StringWidget
 
 
-class FilenameWidget(HBox, ValueWidget):
-    def __init__(self, description: str, value: str | None = None, **kwargs):
-        super().__init__(layout=default_layout)
-        self.text_widget = Text(description=description, value=value, **kwargs)
-        self.children = [self.text_widget]
+class FilenameWidget(StringWidget): ...
 
-    @property
-    def value(self) -> str | None:
-        v = self.text_widget.value.strip()
-        if not v:
-            return None
-        return v
 
-    @value.setter
-    def value(self, value: str | None):
-        if value is None:
-            self.text_widget.value = ''
-        else:
-            self.text_widget.value = value
-
-
-class MultiFilenameWidget(FilenameWidget):
-    @property
-    def value(self) -> tuple[str, ...]:
-        v = super().value
-        if v is None:
-            return ()
-        return tuple(s.strip() for s in v.split(','))
-
-    @value.setter
-    def value(self, value: tuple[str, ...]):
-        self.text_widget.value = ', '.join(value)
+class MultiFilenameWidget(MultiStringWidget): ...

src/ess/reduce/widgets/_string_widget.py

@@ -1,6 +1,5 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright (c) 2024 Scipp contributors (https://github.com/scipp)
-# import scipp as sc
 from ipywidgets import HBox, Text, ValueWidget
 
 from ._config import default_layout