Исходный код EJIO.ctk_extender.components.login_form

## /ctk_extender/components/login_form.py

import customtkinter as ctk
from typing import Any
from EJIO.utils import _
from ..widget import Form, FormCheckBox, Button, PackStrategy
from ..event import on_event, EventController
from .event import FieldReturnEvent
from .labeled_field import FormLabeledField

__all__ = [
    'LoginForm',
]




class LoginForm(Form):
    """
    Высокоуровневый составной компонент формы авторизации.
    """
    __slots__ = ()

    def __init__(self, parent: Any, geometry: Any = None) -> None:
        super().__init__(parent, geometry)

        self._populate_form_components()



    def build(self) -> ctk.CTkFrame:
        frame_instance = super().build()
        frame_instance.configure(fg_color="transparent")

        return frame_instance


    def _populate_form_components(self) -> None:
        # 1. Добавляем поле Логина
        login_widget = self.add_widget(
            FormLabeledField,
            name="login",
            label_text=_("ctk_extender.builtins.component.login_form.login_text"),
            placeholder=_("ctk_extender.builtins.component.login_form.login_placeholder"),
            layout="column",
            required=False,
            geometry=PackStrategy(fill="x", pady=(0, 10))
        )

        # 2. Добавляем поле Пароля
        pass_widget = self.add_widget(
            FormLabeledField,
            name="password",
            label_text=_("ctk_extender.builtins.component.login_form.password_text"),
            placeholder=_("ctk_extender.builtins.component.login_form.password_placeholder"),
            layout="column",
            required=False,
            show="•",
            geometry=PackStrategy(fill="x", pady=(0, 15))
        )

        # 3. Добавляем чекбокс "Запомнить меня"
        self.add_widget(
            FormCheckBox,
            name="remember_me",
            text=_("ctk_extender.builtins.component.login_form.remember_text"),
            geometry=PackStrategy(anchor="w", pady=(0, 20))
        )

        # 4. Добавляем кастомную кнопку отправки
        self.add_widget(
            Button,
            text=_("ctk_extender.builtins.component.login_form.btn_text"),
            command=self.submit,
            geometry=PackStrategy(fill="x")
        )

        # Перехватываем низкоуровневый Enter инпутов и сразу транслируем в шину событий.
        # Добираемся к нативным инпутам через цепочки _field_instance базовых оберток
        login_widget._field_instance.ctk_instance.bind( #TODO: добавить функционал для быстрой установки событий через обертку
            "<Return>", lambda e: EventController.emit(FieldReturnEvent(self,"login"))
        )
        pass_widget._field_instance.ctk_instance.bind(
            "<Return>", lambda e: EventController.emit(FieldReturnEvent(self,"password"))
        )

    @on_event(FieldReturnEvent, predicate=lambda e: e.sender.__class__.__name__ == "LoginForm")
    def _handle_internal_return(self, event: FieldReturnEvent) -> None:
        """Переключает фокус по цепочке полей, используя focus_field."""
        if event.sender != self:
            return

        if event.field_name == "login":
            self.focus_field("password")
        elif event.field_name == "password":
            self.submit()