S
Solaraanimusater

If I ve setup an app with multiple pages

If I've setup an app with multiple pages using Solara's routing, is there an easy way to redirect a user to a certain page? For example, say I'd want to show a popup and then, after some few seconds, redirect the user to the home page.
MaartenBreddels
MaartenBreddels•218d ago
I've based an example on the use_interval hook from https://discord.com/channels/1106593685241614489/1106593686223069309/1111279663805898863 
from typing import Callable
import solara
import solara.lab
import time


def use_interval(f: Callable, interval: float = 10.0, enabled=True):
    """
    Call a function periodically.

    Parameters
    ----------
    f
        Function to call periodically.
    interval
        Interval in milliseconds.
    """

    def run():
        if enabled:
            time_start = time.time()
            next_tick = time_start + interval
            while True:
                # instead of sleeping for 1 second, we sleep until the next second
                # this takes into account overhead and makes the timer more accurate
                f()
                time.sleep(max(0, next_tick - time.time()))
                next_tick += interval

    return solara.use_thread(run, dependencies=[interval, enabled])


@solara.component
def Page():
    router = solara.use_router()
    count = solara.use_reactive(5)
    cancelled = solara.use_reactive(False)

    def redirect():
        router.push(f"/some_url")

    def count_down():
        if count.value > 0:
            count.value -= 1
        else:
            redirect()

    use_interval(count_down, interval=1, enabled=not cancelled.value)
    solara.lab.ConfirmationDialog(
        not cancelled.value,
        on_cancel=lambda: cancelled.set(True),
        on_ok=lambda: redirect(),
        title="Redirecting",
        content=f"Redirecting in {count.value+1} seconds",
    )
    if cancelled.value:
        solara.Button("Redirect anyway", on_click=redirect)
from typing import Callable
import solara
import solara.lab
import time


def use_interval(f: Callable, interval: float = 10.0, enabled=True):
    """
    Call a function periodically.

    Parameters
    ----------
    f
        Function to call periodically.
    interval
        Interval in milliseconds.
    """

    def run():
        if enabled:
            time_start = time.time()
            next_tick = time_start + interval
            while True:
                # instead of sleeping for 1 second, we sleep until the next second
                # this takes into account overhead and makes the timer more accurate
                f()
                time.sleep(max(0, next_tick - time.time()))
                next_tick += interval

    return solara.use_thread(run, dependencies=[interval, enabled])


@solara.component
def Page():
    router = solara.use_router()
    count = solara.use_reactive(5)
    cancelled = solara.use_reactive(False)

    def redirect():
        router.push(f"/some_url")

    def count_down():
        if count.value > 0:
            count.value -= 1
        else:
            redirect()

    use_interval(count_down, interval=1, enabled=not cancelled.value)
    solara.lab.ConfirmationDialog(
        not cancelled.value,
        on_cancel=lambda: cancelled.set(True),
        on_ok=lambda: redirect(),
        title="Redirecting",
        content=f"Redirecting in {count.value+1} seconds",
    )
    if cancelled.value:
        solara.Button("Redirect anyway", on_click=redirect)
I'll update the docs on how to use the router object
animusater
animusater•218d ago
Amazing -- thanks @MaartenBreddels!
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