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use crate::view::View; use crate::views::IdView; /// Makes a view wrappable in an [`IdView`]. /// /// [`IdView`]: ../views/struct.IdView.html pub trait Identifiable: View + Sized { /// Wraps this view into an `IdView` with the given id. /// /// This is just a shortcut for `IdView::new(id, self)` /// /// You can use the given id to find the view in the layout tree. /// /// # Examples /// /// ```rust /// # use cursive::Cursive; /// # use cursive::views::TextView; /// # use cursive::view::Boxable; /// use cursive::view::Identifiable; /// /// let mut siv = Cursive::dummy(); /// siv.add_layer( /// TextView::new("foo") /// .with_id("text") /// .fixed_width(10) /// ); /// /// // You could call this from an event callback /// siv.call_on_id("text", |view: &mut TextView| { /// view.set_content("New content!"); /// }); /// ``` /// /// # Notes /// /// You should call this directly on the view you want to retrieve later, /// before other wrappers like [`fixed_width`]. Otherwise, you would be /// retrieving a [`BoxView`]! /// /// [`fixed_width`]: trait.Boxable.html#method.fixed_width /// [`BoxView`]: ../views/struct.BoxView.html /// fn with_id<S: Into<String>>(self, id: S) -> IdView<Self> { IdView::new(id, self) } } /// Any `View` implements this trait. impl<T: View> Identifiable for T {}