Struct hotdrink_wasm::event::event_handler::EventHandler

pub struct EventHandler<T, E> { /* fields omitted */ }

The main event handler containing the callbacks for variables.

Implementations

impl<T: Into<JsValue> + Clone + Debug, E: Display + Debug> EventHandler<T, E>

pub fn new() -> Self

Construct a new event handler that reacts to no events.

pub fn set_on_pending(
    &mut self,
    component: &str,
    variable: &str,
    on_pending: Function
) -> Option<()>

Sets the callback to call when the specified variable starts waiting for a new value.

pub fn set_on_ready(
    &mut self,
    component: &str,
    variable: &str,
    on_ready: Function
) -> Option<()>

Sets the callback to call when the specified variable succeeds in getting a new value.

pub fn set_on_error(
    &mut self,
    component: &str,
    variable: &str,
    on_error: Function
) -> Option<()>

Sets the callback to call when the specified variable fails to get a new value.

pub fn unsubscribe(&mut self, component: &str, variable: &str)

Removes the callback for a specific variable from the event handler.

pub fn handle_event(&mut self, event: JsEvent<T, E>) -> Result<(), JsValue>

Handles an event based on the attached callbacks.

Trait Implementations

impl<T: Clone, E: Clone> Clone for EventHandler<T, E>

fn clone(&self) -> EventHandler<T, E>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug, E: Debug> Debug for EventHandler<T, E>

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

Formats the value using the given formatter.

impl<T, E> Default for EventHandler<T, E>

fn default() -> Self

Returns the “default value” for a type.

impl<T: Eq, E: Eq> Eq for EventHandler<T, E>

impl<T: PartialEq, E: PartialEq> PartialEq<EventHandler<T, E>> for EventHandler<T, E>

fn eq(&self, other: &EventHandler<T, E>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &EventHandler<T, E>) -> bool

This method tests for !=.

impl<T, E> StructuralEq for EventHandler<T, E>

impl<T, E> StructuralPartialEq for EventHandler<T, E>