Trait When

pub trait When: AsRef<EventTarget> + Sized {
    // Required method
    fn when<E: FromWasmAbi + 'static, F: FnMut(E) + 'static>(
        self: &Rc<Self>,
        event_type: &'static str,
        callback: F,
    ) -> Result<EventListener<Self, E>, JsError>;
}

Trait for listening to events with a callback.

Required Methods

fn when<E: FromWasmAbi + 'static, F: FnMut(E) + 'static>( self: &Rc<Self>, event_type: &'static str, callback: F, ) -> Result<EventListener<Self, E>, JsError>

Run callback when given event type occurs.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T> When for T

where T: AsRef<EventTarget>,