Struct ComponentContext 

pub struct ComponentContext<C: Component> { /* private fields */ }

Capabilities available while creating or updating a component.

Messages sent through this context are queued and delivered after the current lifecycle call.

Implementations

impl<C: Component> ComponentContext<C>

pub fn open_window(&self, root: View) -> bool

Requests a new application-owned window with an independent Pump.

pub fn sender(&self) -> LocalSender<C::Message>

Returns a sender bound to this component instance.

pub fn spawn_background<F>(&self, work: F) -> ComponentTask

where C::Message: Send, F: FnOnce(CancellationToken) -> C::Message + Send + 'static,

Starts scope-owned work on the Windows thread pool.

Expected application failures should be represented in the returned message. A panic in work or failure to submit to the Windows thread pool is fatal.

pub fn spawn_background_with_rejection<F>( &self, work: F, rejected: C::Message, ) -> ComponentTask

where C::Message: Send, F: FnOnce(CancellationToken) -> C::Message + Send + 'static,

Starts scope-owned work and dispatches rejected if bounded delivery rejects it.

Cancellation and scope retirement do not dispatch rejected. A panic in work or failure to submit to the Windows thread pool is fatal.

pub fn window(&self) -> WindowRef

Returns a token-bound capability for the component’s owning window.