pub enum SemanticsRole {
Layout,
Subcompose,
Text {
value: String,
},
Spacer,
Button,
Unknown,
}Expand description
Re-export the UI crate so applications can depend on a single crate. Semantic role describing how a node should participate in accessibility and hit testing. Roles are now derived from SemanticsConfiguration rather than widget types.
Variants§
Layout
Generic container or layout node
Subcompose
Subcomposition boundary
Text
Text content derived from the text node semantics payload.
Spacer
Spacer (non-interactive)
Button
Button (derived from the semantics role)
Unknown
Unknown or unspecified role
Trait Implementations§
Source§impl Clone for SemanticsRole
impl Clone for SemanticsRole
Source§fn clone(&self) -> SemanticsRole
fn clone(&self) -> SemanticsRole
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreSource§impl Debug for SemanticsRole
impl Debug for SemanticsRole
impl Eq for SemanticsRole
Source§impl PartialEq for SemanticsRole
impl PartialEq for SemanticsRole
impl StructuralPartialEq for SemanticsRole
Auto Trait Implementations§
impl Freeze for SemanticsRole
impl RefUnwindSafe for SemanticsRole
impl Send for SemanticsRole
impl Sync for SemanticsRole
impl Unpin for SemanticsRole
impl UnsafeUnpin for SemanticsRole
impl UnwindSafe for SemanticsRole
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
Source§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can
then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.Source§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Convert
Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be
further downcast into Rc<ConcreteType> where ConcreteType implements Trait.Source§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot
generate &Any’s vtable from &Trait’s.Source§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot
generate &mut Any’s vtable from &mut Trait’s.Source§impl<T> DowncastSync for T
impl<T> DowncastSync for T
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key and return true if they are equal.