Struct Callback

pub struct Callback(/* private fields */);

Callback is a function that can be triggered by an event. It has a mutable access to the cursive root.

It is meant to be stored in views.

Implementations

impl Callback

pub fn from_fn<F>(f: F) -> Self

where F: 'static + Fn(&mut Cursive) + Send + Sync,

Wraps the given function into a Callback object.

pub fn from_fn_mut<F>(f: F) -> Self

where F: 'static + FnMut(&mut Cursive) + Send,

Wrap a FnMut into a Callback object.

If this methods tries to call itself, nested calls will be no-ops.

pub fn from_fn_once<F>(f: F) -> Self

where F: 'static + FnOnce(&mut Cursive) + Send,

Wrap a FnOnce into a Callback object.

After being called once, the callback will become a no-op.

pub fn dummy() -> Self

Returns a dummy callback that doesn’t run anything.

Trait Implementations

impl Clone for Callback

fn clone(&self) -> Callback

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl From<Arc<dyn Fn(&mut Cursive) + Send + Sync>> for Callback

fn from(f: Arc<dyn Fn(&mut Cursive) + Send + Sync>) -> Self

Converts to this type from the input type.

impl From<Box<dyn Fn(&mut Cursive) + Send + Sync>> for Callback

fn from(f: Box<dyn Fn(&mut Cursive) + Send + Sync>) -> Self

Converts to this type from the input type.

impl Deref for Callback

type Target = dyn Fn(&mut Cursive)

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.