Enum FocusPolicy 

pub enum FocusPolicy {
    FocusOnPointer,
    PreserveCurrentOnPointer,
}

How a focusable node responds to pointer focus.

FocusPolicy only changes pointer-driven focus assignment. Keyboard focus, accessibility focus, and semantic activation still work for focusable nodes.

Example

A toolbar button can run its action without taking focus from an editor:

use fission_ir::semantics::{FocusPolicy, Role};
use fission_ir::Semantics;

let semantics = Semantics {
    role: Role::Button,
    focusable: true,
    focus_policy: FocusPolicy::PreserveCurrentOnPointer,
    ..Semantics::default()
};

Variants

FocusOnPointer

Pointer-down focuses this node when it is focusable. This is the normal behavior for buttons, text inputs, and other controls.

PreserveCurrentOnPointer

Pointer-down keeps the currently focused node focused while still letting this node receive pointer state and activation actions.

Trait Implementations

impl Clone for FocusPolicy

fn clone(&self) -> FocusPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FocusPolicy

impl Debug for FocusPolicy

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

Formats the value using the given formatter.

impl Default for FocusPolicy

fn default() -> FocusPolicy

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FocusPolicy

fn deserialize<__D>( __deserializer: __D, ) -> Result<FocusPolicy, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for FocusPolicy

impl Hash for FocusPolicy

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FocusPolicy

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for FocusPolicy

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for FocusPolicy