[−][src]Trait cursive::view::Finder
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
fn call_on<V, F, R>(&mut self, sel: &Selector, callback: F) -> Option<R> where
V: View + Any,
F: FnOnce(&mut V) -> R,
V: View + Any,
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
.
Provided methods
fn call_on_id<V, F, R>(&mut self, id: &str, callback: F) -> Option<R> where
V: View + Any,
F: FnOnce(&mut V) -> R,
V: View + Any,
F: FnOnce(&mut V) -> R,
Convenient method to use call_on
with a view::Selector::Id
.
fn find_id<V>(&mut self, id: &str) -> Option<ViewRef<V>> where
V: View + Any,
V: View + Any,
Convenient method to find a view wrapped in an IdView
.