Reset color value inputs to 0 on blur

This commit is contained in:
Isaiah Odhner 2023-05-25 01:08:29 -04:00
parent c19a3a2741
commit 3507d4267a

View File

@ -294,6 +294,25 @@ class ColorPreview(Widget):
"""Render a line of the widget."""
return Strip([Segment(" " * self.size.width, Style(bgcolor=self.color), None)])
class IntegerInput(Input):
"""An input that only accepts integers."""
def validate_value(self, value: str) -> str:
"""Validate the given value."""
if not value:
# Allow empty string
return value
try:
int(value)
except ValueError:
return self.value
return value
def on_blur(self, event: events.Blur) -> None:
"""Called when the input loses focus. Resets the input if empty."""
if not self.value:
self.value = "0"
class EditColorsDialogWindow(DialogWindow):
"""A dialog window that lets the user select a color."""
@ -307,7 +326,7 @@ class EditColorsDialogWindow(DialogWindow):
if selected_color:
self._current_color = selected_color
self._color_by_button: dict[Button, str] = {}
self._inputs_by_letter: dict[str, Input] = {}
self._inputs_by_letter: dict[str, IntegerInput] = {}
self._custom_colors_index = 0
self.handle_selected_color = handle_selected_color
@ -342,7 +361,7 @@ class EditColorsDialogWindow(DialogWindow):
"b": "Bl&ue:",
}[component_letter]
text_without_hotkey = text_with_hotkey.replace("&", "")
input = Input(name=component_letter)
input = IntegerInput(name=component_letter)
label = Label(text_without_hotkey)
container = Container(label, input, classes="input_container")
input_containers.append(container)
@ -448,18 +467,6 @@ class EditColorsDialogWindow(DialogWindow):
self._update_inputs("hsl")
self._update_color_preview()
# `textual._on.OnDecoratorError: The message class must have a 'control' to match with the on decorator`
# Also, neither does `DescendantBlur` have a `control` attribute.
# I'll probably have to subclass `Input` as `NumericInput`.
# @on(events.Blur, "Input")
# def _on_input_blur(self, event: events.Blur) -> None:
# """Called when an input loses focus. Restores empty inputs to their previous value."""
# input = event.control
# if input is None or input.name is None or not isinstance(input, Input):
# return
# if len(input.value) == 0:
# self._update_inputs(input.name)
@property
def _current_color(self) -> Color:
"""Get the current color."""