Struct SystemEnvironmentPreferences 

pub struct SystemEnvironmentPreferences {
    pub locales: Option<Vec<Locale>>,
    pub text_scale: Option<f32>,
    pub reduced_motion: Option<bool>,
    pub high_contrast: Option<bool>,
    pub input: Option<InputCapabilities>,
    pub safe_insets: Option<EdgeInsets>,
    pub view_padding: Option<EdgeInsets>,
    pub view_insets: Option<EdgeInsets>,
}

Application-level system preferences observable by a native adapter.

Fields

locales: Option<Vec<Locale>>

Ordered OS locale preferences. Order is significant.

text_scale: Option<f32>

Accessibility text scaling when the platform exposes a meaningful application text-scale value distinct from window DPI.

reduced_motion: Option<bool>

high_contrast: Option<bool>

input: Option<InputCapabilities>

safe_insets: Option<EdgeInsets>

Desktop platforms normally leave these unsupported (None), but the contract is explicit for shells with desktop safe/view insets.

Inset ownership: safe_insets is the currently usable margin and the shell reduces covered edges while transient UI obscures them; view_padding is the persistent obstruction margin the shell never reduces under occlusion; view_insets is the transient occlusion itself (for example the keyboard). Maintained safe-area padding reads view_padding, never view_insets.

view_padding: Option<EdgeInsets>

view_insets: Option<EdgeInsets>

Implementations

impl SystemEnvironmentPreferences

pub fn apply_to(&self, environment: &mut RuntimeEnvironment)

Applies this complete preference snapshot. Every unsupported field is reset to the stable RuntimeEnvironment::default() value so a backend losing support cannot leave old native state cached indefinitely.

Trait Implementations

impl Clone for SystemEnvironmentPreferences

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SystemEnvironmentPreferences

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

Formats the value using the given formatter.

impl Default for SystemEnvironmentPreferences

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for SystemEnvironmentPreferences

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SystemEnvironmentPreferences