Enum NavPatch 

pub enum NavPatch {
    Pushed {
        title: String,
        immersive: bool,
    },
    Popped,
    Title(String),
    GuardTop(bool),
}

Applied to the NAV HOST after a page child is attached / before it is removed; the toolkit animates its native presentation accordingly.

Variants

Pushed

The just-attached last page child became the top of the stack. immersive marks a page that keeps the floating transparent chrome on backends with an immersive nav mode (day-android edge-to-edge today; ignored elsewhere) — unmarked pages get the standard opaque bar.

Fields

title: String

immersive: bool

Popped

The top page is about to be removed; present its predecessor.

Title(String)

Current top-of-stack title changed.

GuardTop(bool)

The top page has a back guard (Stack::on_back, docs/navigation.md): while true, the toolkit must NOT auto-pop on a native back gesture/button — instead route it to Day as Event::NavBack { already_popped: false } so the app’s guard decides. On backends whose back already routes through Day (AppKit/Qt/XAML/web custom headers) this is a no-op; iOS disables the swipe, Android holds its callback, GTK sets the page can-pop=false, ArkUI consumes onBackPressed.

Trait Implementations

impl Clone for NavPatch

fn clone(&self) -> NavPatch

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NavPatch

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for NavPatch

fn eq(&self, other: &NavPatch) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for NavPatch