Enum euca::vdom::EventHandler

pub enum EventHandler<'a, Message> {
    Msg(&'a Message),
    Fn(fn(_: Event) -> Option<Message>),
    FnMsg(&'a Message, fn(_: Message, _: Event) -> Option<Message>),
    InputValue(fn(_: String) -> Option<Message>),
    InputEvent(fn(_: InputEvent) -> Option<Message>),
}

This represents an event handler. The handler can either always map to a specific message, or a function can be provided that will transform the given web_sys::Event into a message. This function must be a plain fn pointer and cannot capture any state from the environment.

Variants

Msg(&'a Message)

A message that will be generated when this event associated with this handler fires.

Fn(fn(_: Event) -> Option<Message>)

A callback that will convert a web_sys::Event into a message.

FnMsg(&'a Message, fn(_: Message, _: Event) -> Option<Message>)

A callback that will convert a web_sys::Event into a message.

This variation accepts a message to pass data into the callback.

InputValue(fn(_: String) -> Option<Message>)

This callback will recieve the value of a form input and convert it to a message.

InputEvent(fn(_: InputEvent) -> Option<Message>)

A function that will convert a web_sys::InputEvent event to a Message.

Trait Implementations

impl<'a, Message: Clone> Clone for EventHandler<'a, Message>

fn clone(&self) -> EventHandler<'a, Message>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, Message: Copy> Copy for EventHandler<'a, Message>

impl<'a, Message: Debug> Debug for EventHandler<'a, Message>

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

Formats the value using the given formatter.

impl<'a, Message: PartialEq> PartialEq<EventHandler<'a, Message>> for EventHandler<'a, Message>

fn eq(&self, other: &EventHandler<'a, Message>) -> bool

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

fn ne(&self, other: &EventHandler<'a, Message>) -> bool

This method tests for !=.

impl<'a, Message> StructuralPartialEq for EventHandler<'a, Message>