Enum PopupMountPolicy

#[non_exhaustive]
pub enum PopupMountPolicy {
    RetainedOverlay,
    ProceduralFallback,
}

Rendering ownership selected for one popup registration.

New popup content is mounted into the provider-neutral retained overlay by default. Widgets that still draw their own overlay must opt into Self::ProceduralFallback until their shell, placement, and interaction have migrated to the retained subtree.

The portal keeps two fixed z-order strata: procedural fallbacks are always below retained overlays. Opening a popup raises it only within its own stratum, so paint, hit-testing, outside dismissal, and Escape all agree on the same topmost popup during the migration.

Examples

use ailloli_ui_runtime::popup::PopupMountPolicy;
assert_eq!(PopupMountPolicy::default(), PopupMountPolicy::RetainedOverlay);

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

RetainedOverlay

Mount the popup factory into the runtime-owned retained overlay tree.

ProceduralFallback

Keep widget-owned procedural drawing in the lower migration stratum.

Trait Implementations

impl Clone for PopupMountPolicy

fn clone(&self) -> PopupMountPolicy

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PopupMountPolicy

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

Formats the value using the given formatter.

impl Default for PopupMountPolicy

fn default() -> PopupMountPolicy

Returns the “default value” for a type.

impl PartialEq for PopupMountPolicy

fn eq(&self, other: &PopupMountPolicy) -> 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 Copy for PopupMountPolicy

impl Eq for PopupMountPolicy

impl StructuralPartialEq for PopupMountPolicy