Struct relm4::RelmMsgHandler

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pub struct RelmMsgHandler<Data, ParentModel>where
    Data: MessageHandler<ParentModel> + 'static,
    ParentModel: Model,{ /* private fields */ }
Expand description

RelmMsgHandlers are usually used to run expansive tasks on different threads and report back when they are finished so that their parent components can keep handling UI events in the meantime. For example you could use a RelmMsgHandler for sending a HTTP request or for copying files.

Multiple RelmMsgHandlers that have the same parent are usually bundled along with RelmComponents and RelmWorkers in a struct that implements Components.

Implementations§

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impl<Data, ParentModel> RelmMsgHandler<Data, ParentModel>where Data: MessageHandler<ParentModel> + 'static, ParentModel: Model,

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pub fn new( parent_model: &ParentModel, parent_sender: Sender<ParentModel::Msg> ) -> Self

Create a new RelmMsgHandler.

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pub fn send(&self, msg: Data::Msg)

Send a message to this message handler. This can be used by the parent to send messages to this message handler.

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pub fn sender(&self) -> Data::Sender

Get a sender to send messages to this message handler.

Trait Implementations§

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impl<Data, ParentModel> Clone for RelmMsgHandler<Data, ParentModel>where Data: MessageHandler<ParentModel> + 'static + Clone, ParentModel: Model + Clone,

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fn clone(&self) -> RelmMsgHandler<Data, ParentModel>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<Data, ParentModel> Debug for RelmMsgHandler<Data, ParentModel>where Data: MessageHandler<ParentModel> + 'static + Debug, ParentModel: Model + Debug,

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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<Data, ParentModel> RefUnwindSafe for RelmMsgHandler<Data, ParentModel>where Data: RefUnwindSafe, ParentModel: RefUnwindSafe,

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impl<Data, ParentModel> Send for RelmMsgHandler<Data, ParentModel>where Data: Send, ParentModel: Send,

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impl<Data, ParentModel> Sync for RelmMsgHandler<Data, ParentModel>where Data: Sync, ParentModel: Sync,

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impl<Data, ParentModel> Unpin for RelmMsgHandler<Data, ParentModel>where Data: Unpin, ParentModel: Unpin,

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impl<Data, ParentModel> UnwindSafe for RelmMsgHandler<Data, ParentModel>where Data: UnwindSafe, ParentModel: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

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

const: unstable · source§

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

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source§

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> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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 Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.