Struct Listener 

pub struct Listener<Element: Deref<Target = EventTarget>, Arg: FromWasmAbi + 'static = JsValue> { /* private fields */ }

Safe wrapper around eventListener callbacks that cleans them up once the Listener struct is dropped For more information, see https://github.com/rustwasm/wasm-bindgen/issues/993.

This utility can be used with any type that dereferences to EventTarget, so it is not limited to just pure HtmlElements.

Implementations

impl<Element: Deref<Target = EventTarget>, Arg: FromWasmAbi + 'static> Listener<Element, Arg>

pub fn new<F>(element: Element, name: &'static str, cb: F) -> Self

where F: Fn(Arg) + 'static,

Attaches a listener callback to an element

pub fn element(&self) -> &Element

Get the element that this listener is attached to

pub fn name(&self) -> &'static str

Get the name of the event that this listener is listening for

pub fn callback(&self) -> &Closure<dyn Fn(Arg)>

Get the callback that is called when the listener’s event is emitted

Trait Implementations

impl<Element: Debug + Deref<Target = EventTarget>, Arg: Debug + FromWasmAbi + 'static> Debug for Listener<Element, Arg>

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

Formats the value using the given formatter.

impl<Element: Deref<Target = EventTarget>, Arg: FromWasmAbi + 'static> Drop for Listener<Element, Arg>

fn drop(&mut self)

Executes the destructor for this type.