Struct ModalBarrier 

pub struct ModalBarrier {
    pub pointer: bool,
    pub absorb: bool,
    pub paint: bool,
    pub semantics: bool,
}

What a subtree is not allowed to contribute to the frame.

Returned by Widget::barrier; the walk applies it once the subtree has been visited, by discarding what that subtree added.

Fields

pointer: bool

Drops the subtree’s input targets: clicks, long presses, focus stops, scrollable areas, scrollbars, drag handles, reorder handles and interactive viewports.

absorb: bool

Makes the barrier itself an input target that carries no message, so input landing on it stops there instead of reaching whatever is painted behind. Only meaningful together with pointer.

paint: bool

Drops the subtree’s primitives — laid out and measured, but not drawn.

semantics: bool

Drops the subtree’s accessibility nodes.

Implementations

impl ModalBarrier

pub const NONE: Self

A barrier that lets everything through — what a widget with no opinion returns.

pub fn is_none(&self) -> bool

true when this barrier would change nothing, so the walk can skip it.

Trait Implementations

impl Clone for ModalBarrier

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ModalBarrier

impl Debug for ModalBarrier

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

Formats the value using the given formatter.

impl Default for ModalBarrier

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ModalBarrier

impl PartialEq for ModalBarrier

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ModalBarrier