how to use Notification Service?

[rikarani]

i'm confused with notified signal. When i test it with simple code that print summary and body, it show multiple time instead of one time.

i don't know if this related or not, i can't show the child too

here the code

class NotificationList(widgets.Box):
    __gtype_name__ = "notification-list"

    def __init__(self) -> None:
        super().__init__(
            vertical=True,
            setup=lambda _: notification.connect(
                "notified", lambda _, notif: self.__onNotified(notif)
            ),
        )

    def __onNotified(self, notif: Notification) -> None:
        print(f"{notif.summary}: {notif.body}")
        self.prepend(widgets.Label(label=f"{notif.summary}: {notif.body}"))

[rikarani]

aah sorry my bad, forgot that i do binding in parent widget

managed to solve this by changing

widgets.Box(
    vertical=True,
    vexpand=True,
    css_classes=["notification"],
    spacing=16,
    child=notification.bind(
        "notifications",
        lambda notifications: [
            widgets.Box(
                child=[
                    widgets.Label(
                        css_classes=["count"],
                        label=f"{len(notifications)} Notifikasi",
                    ),
                    widgets.Button(
                        css_classes=["clear-all"],
                        hexpand=True,
                        halign="end",
                        on_click=lambda _: notification.clear_all(),
                        child=widgets.Label(
                            css_classes=["label"],
                            label="Hapus Semua",
                        ),
                    ),
                ]
            ),
            widgets.Scroll(
                vexpand=True,
                child=NotificationList(),
            ),
        ],
    ),
),

to this

widgets.Box(
    vertical=True,
    vexpand=True,
    css_classes=["notification"],
    spacing=16,
    child=[
        widgets.Box(
            child=[
                widgets.Label(
                    css_classes=["count"],
                    label=notification.bind(
                        "notifications",
                        lambda notifications: f"{len(notifications)} Notifikasi",
                    ),
                ),
                widgets.Button(
                    css_classes=["clear-all"],
                    hexpand=True,
                    halign="end",
                    on_click=lambda _: notification.clear_all(),
                    child=widgets.Label(
                        css_classes=["label"],
                        label="Hapus Semua",
                    ),
                ),
            ]
        ),
        widgets.Scroll(
            vexpand=True,
            child=NotificationList(),
        ),
    ],
),