pythonnative/tests/typing/conformance_navigation.py at main · pythonnative/pythonnative · GitHub

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"""Typing conformance: typed screens and navigation (checked by mypy, never executed)."""

from __future__ import annotations

import pythonnative as pn

@pn.component

def HomeScreen() -> pn.Node:

nav = pn.use_navigation()

nav.push(ItemScreen(id=42))

nav.navigate(ItemScreen(id=1, tab="reviews"))

nav.push(ItemScreen(id="x")) # type: ignore[arg-type]

nav.push(ItemScreen(identifier=1)) # type: ignore[call-arg]

nav.push("ItemScreen") # type: ignore[arg-type]

return pn.Text("home")

@pn.component

def ItemScreen(id: int, tab: str = "details") -> pn.Node:

nav = pn.use_navigation()

pn.use_screen_options(title=f"Item {id}")

pn.use_screen_options(titel="x") # type: ignore[call-arg]

nav.pop_to(HomeScreen)

nav.replace(ItemScreen(id=id + 1))

nav.reset(HomeScreen(), ItemScreen(id=1))

can: bool = nav.can_go_back()

return pn.Text(f"{id} {tab} {can}")

Root = pn.StackNavigator(

pn.Screen(HomeScreen, title="Home"),

pn.Screen(ItemScreen, path="items/{id}", header_large_title=True),

initial=HomeScreen,

)

pn.Screen(HomeScreen, titel="Home") # type: ignore[call-arg]

pn.StackNavigator(HomeScreen, initial="HomeScreen") # type: ignore[arg-type]

ref = pn.NavigationRef()

app: pn.Element = pn.NavigationContainer(Root, link_prefixes=["myapp://"], ref=ref)