Struct PopupBackendCapabilities

pub struct PopupBackendCapabilities { /* private fields */ }

Popup presentation capabilities reported by a host adapter.

The safe default is overlay-only. In particular, the winit 0.30 adapter does not advertise native popup support.

Examples

use ailloli_ui_runtime::popup::{PopupBackend, PopupBackendCapabilities};
assert!(!PopupBackendCapabilities::default().supports(PopupBackend::Native));

Implementations

impl PopupBackendCapabilities

Backend support tests and deterministic fallback resolution.

pub const fn overlay_only() -> Self

Capabilities for headless hosts and the universal fallback path.

Examples

use ailloli_ui_runtime::popup::{PopupBackend, PopupBackendCapabilities};
let capabilities = PopupBackendCapabilities::overlay_only();
assert!(capabilities.supports(PopupBackend::Overlay));
assert!(!capabilities.supports(PopupBackend::Native));

pub const fn native_and_overlay() -> Self

Capabilities for a host that has independently validated native popup presentation while retaining overlay fallback support.

Examples

use ailloli_ui_runtime::popup::{PopupBackend, PopupBackendCapabilities};
let capabilities = PopupBackendCapabilities::native_and_overlay();
assert!(capabilities.supports(PopupBackend::Native));

pub const fn supports(self, backend: PopupBackend) -> bool

Reports direct support for a backend before fallback.

Overlay is always supported; native support equals the advertised flag.

Examples

use ailloli_ui_runtime::popup::{PopupBackend, PopupBackendCapabilities};
assert!(PopupBackendCapabilities::overlay_only().supports(PopupBackend::Overlay));

pub const fn resolve(self, requested: PopupBackend) -> PopupBackendResolution

Selects the request when supported, otherwise the overlay fallback.

Examples

use ailloli_ui_runtime::popup::{PopupBackend, PopupBackendCapabilities};
let resolution = PopupBackendCapabilities::overlay_only().resolve(PopupBackend::Native);
assert_eq!(resolution.selected(), PopupBackend::Overlay);
assert!(resolution.fell_back());

Trait Implementations

impl Clone for PopupBackendCapabilities

fn clone(&self) -> PopupBackendCapabilities

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PopupBackendCapabilities

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

Formats the value using the given formatter.

impl Default for PopupBackendCapabilities

fn default() -> PopupBackendCapabilities

Returns the “default value” for a type.

impl PartialEq for PopupBackendCapabilities

fn eq(&self, other: &PopupBackendCapabilities) -> 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 PopupBackendCapabilities

impl Eq for PopupBackendCapabilities

impl StructuralPartialEq for PopupBackendCapabilities