zng::widget::node

Struct WidgetUiNode

pub struct WidgetUiNode<'u>(/* private fields */);

Expand description

Extra UiNode methods for nodes that define a widget instance context.

See UiNode::as_widget for more details.

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impl<'u> WidgetUiNode<'u>

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pub fn with_context<R>( &mut self, update_mode: WidgetUpdateMode, visitor: impl FnOnce() -> R, ) -> R

Calls visitor with the WIDGET context of the widget instance defined by the node.

If update_mode is WidgetUpdateMode::Bubble the update flags requested for the widget in visitor will be copied to the caller widget context, otherwise they are ignored.

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pub fn id(&mut self) -> WidgetId

Gets the widget instance ID.

Auto Trait Implementations§

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impl<'u> !UnwindSafe for WidgetUiNode<'u>

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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where T: ?Sized,

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Immutably borrows from an owned value. Read more

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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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.

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Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

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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.

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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.

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fn from(t: T) -> T

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

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fn instrument(self, span: Span) -> Instrumented<Self>

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fn in_current_span(self) -> Instrumented<Self>

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Calls U::from(self).

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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