Trait cursive_core::view::Finder
source · pub trait Finder {
fn call_on_all<V, F>(&mut self, sel: &Selector<'_>, callback: F)
where
V: View,
F: FnMut(&mut V);
fn call_on<V, F, R>(&mut self, sel: &Selector<'_>, callback: F) -> Option<R>
where
V: View,
F: FnOnce(&mut V) -> R,
{ ... }
fn call_on_name<V, F, R>(&mut self, name: &str, callback: F) -> Option<R>
where
V: View,
F: FnOnce(&mut V) -> R,
{ ... }
fn find_name<V>(&mut self, name: &str) -> Option<ViewRef<V>>
where
V: View,
{ ... }
}
Expand description
Provides call_on<V: View>
to views.
This trait is mostly a wrapper around View::call_on_any
.
It provides a nicer interface to find a view when you know its type.
Required Methods§
Provided Methods§
sourcefn call_on<V, F, R>(&mut self, sel: &Selector<'_>, callback: F) -> Option<R>where
V: View,
F: FnOnce(&mut V) -> R,
fn call_on<V, F, R>(&mut self, sel: &Selector<'_>, callback: F) -> Option<R>where
V: View,
F: FnOnce(&mut V) -> R,
Runs a callback on the view identified by sel
.
If the view is found, return the result of callback
.
If the view is not found, or if it is not of the asked type,
it returns None
.