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ComponentView

Struct ComponentView 

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pub struct ComponentView<C: Component> { /* private fields */ }
Expand description

The View adapter that hosts a Component in any surrounding view tree.

ComponentView<C> implements View<Outer> for every Outer state: the hosted subtree is bound to C::State, not Outer, so a component can be dropped anywhere regardless of the ambient application state. Build it with the component free function.

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impl<Outer: 'static, C: Component> View<Outer> for ComponentView<C>

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type Element = ComponentWidget<C>

The retained widget this view produces.
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fn build(&self, _ctx: &mut BuildCtx<'_>) -> Self::Element

Materialise a fresh widget for this view.
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fn rebuild( &self, _prev: &Self, element: &mut Self::Element, ctx: &mut BuildCtx<'_>, ) -> ChangeFlags

Reconcile prev (the previous view of the same type) against the live element, mutating it in place and reporting what changed.
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fn teardown(&self, element: &mut Self::Element, ctx: &mut BuildCtx<'_>)

Tear down element when this view is being removed. Read more
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fn message(&self, _element: &mut Self::Element, _state: &mut State)

Deliver an event message to this view, mutating application state. Read more

Auto Trait Implementations§

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impl<C> Freeze for ComponentView<C>
where C: Freeze,

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impl<C> RefUnwindSafe for ComponentView<C>
where C: RefUnwindSafe,

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impl<C> Send for ComponentView<C>
where C: Send,

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impl<C> Sync for ComponentView<C>
where C: Sync,

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impl<C> Unpin for ComponentView<C>
where C: Unpin,

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impl<C> UnsafeUnpin for ComponentView<C>
where C: UnsafeUnpin,

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impl<C> UnwindSafe for ComponentView<C>
where C: UnwindSafe,

Blanket Implementations§

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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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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> StorageAccess<T> for T

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fn as_borrowed(&self) -> &T

Borrows the value.
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fn into_taken(self) -> T

Takes the value.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.