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yew::context

Struct ContextProvider

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pub struct ContextProvider<T: Clone + PartialEq + 'static> { /* private fields */ }
Expand description

The context provider component.

Every child (direct or indirect) of this component may access the context value. In order to consume contexts, Scope::context method is used, In function components the use_context hook is used.

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impl<T: Clone + PartialEq + 'static> Component for ContextProvider<T>

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type Message = ()

Messages are used to make Components dynamic and interactive. Simple Component’s can declare their Message type to be (). Complex Component’s commonly use an enum to declare multiple Message types.
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type Properties = ContextProviderProps<T>

The Component’s properties. Read more
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fn create(ctx: &Context<Self>) -> Self

Called when component is created.
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fn changed(&mut self, ctx: &Context<Self>, old_props: &Self::Properties) -> bool

Called when properties passed to the component change Read more
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fn view(&self, ctx: &Context<Self>) -> Html

Components define their visual layout using a JSX-style syntax through the use of the html! procedural macro. The full guide to using the macro can be found in Yew’s documentation. Read more
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fn update(&mut self, ctx: &Context<Self>, msg: Self::Message) -> bool

Called when a new message is sent to the component via its scope. Read more
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fn rendered(&mut self, ctx: &Context<Self>, first_render: bool)

The rendered method is called after each time a Component is rendered but before the browser updates the page. Read more
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fn prepare_state(&self) -> Option<String>

Prepares the state during server side rendering. Read more
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fn destroy(&mut self, ctx: &Context<Self>)

Called right before a Component is unmounted.
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impl<T: Debug + Clone + PartialEq + 'static> Debug for ContextProvider<T>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<T> !Freeze for ContextProvider<T>

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impl<T> !RefUnwindSafe for ContextProvider<T>

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impl<T> !Send for ContextProvider<T>

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impl<T> !Sync for ContextProvider<T>

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impl<T> Unpin for ContextProvider<T>
where T: Unpin,

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impl<T> !UnwindSafe for ContextProvider<T>

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> BaseComponent for T
where T: Component + 'static,

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type Message = <T as Component>::Message

The Component’s Message.
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type Properties = <T as Component>::Properties

The Component’s Properties.
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fn create(ctx: &Context<T>) -> T

Creates a component.
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fn update( &mut self, ctx: &Context<T>, msg: <T as BaseComponent>::Message, ) -> bool

Updates component’s internal state.
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fn changed( &mut self, ctx: &Context<T>, old_props: &<T as BaseComponent>::Properties, ) -> bool

React to changes of component properties.
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fn view(&self, ctx: &Context<T>) -> Result<VNode, RenderError>

Returns a component layout to be rendered.
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fn rendered(&mut self, ctx: &Context<T>, first_render: bool)

Notified after a layout is rendered.
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fn destroy(&mut self, ctx: &Context<T>)

Notified before a component is destroyed.
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fn prepare_state(&self) -> Option<String>

Prepares the server-side state.
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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> 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 in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoPropValue<Option<T>> for T

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fn into_prop_value(self) -> Option<T>

Convert self to a value of a Properties struct.
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impl<T> IntoPropValue<T> for T

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fn into_prop_value(self) -> T

Convert self to a value of a Properties struct.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

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

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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more