Struct cursive_core::views::FocusTracker

pub struct FocusTracker<T> { /* private fields */ }

Detects focus events for a view.

Implementations

impl<T> FocusTracker<T>

pub fn new(view: T) -> Self

Wraps a view in a new FocusTracker.

pub fn on_focus<F>(self, f: F) -> Selfwhere
    F: 'static + FnMut(&mut T) -> EventResult,

Sets a callback to be run when the focus is gained.

pub fn on_focus_lost<F>(self, f: F) -> Selfwhere
    F: 'static + FnMut(&mut T) -> EventResult,

Sets a callback to be run when the focus is lost.

Trait Implementations

impl<T: View> ViewWrapper for FocusTracker<T>

type V = T

Type that this view wraps.

fn with_view<F, R>(&self, f: F) -> Option<R>where
    F: FnOnce(&Self::V) -> R,

Runs a function on the inner view, returning the result.

fn with_view_mut<F, R>(&mut self, f: F) -> Option<R>where
    F: FnOnce(&mut Self::V) -> R,

Runs a function on the inner view, returning the result.

fn into_inner(self) -> Result<Self::V, Self>where
    Self::V: Sized,

Attempts to retrieve the inner view.

fn wrap_take_focus(
    &mut self,
    source: Direction
) -> Result<EventResult, CannotFocus>

Wraps the take_focus method.

fn wrap_on_event(&mut self, event: Event) -> EventResult

Wraps the on_event method.

fn wrap_draw(&self, printer: &Printer<'_, '_>)

Wraps the draw method.

fn wrap_required_size(&mut self, req: Vec2) -> Vec2

Wraps the required_size method.

fn wrap_layout(&mut self, size: Vec2)

Wraps the layout method.

fn wrap_call_on_any<'a>(&mut self, selector: &Selector<'_>, callback: AnyCb<'a>)

Wraps the find method.

fn wrap_focus_view(
    &mut self,
    selector: &Selector<'_>
) -> Result<EventResult, ViewNotFound>

Wraps the focus_view method.

fn wrap_needs_relayout(&self) -> bool

Wraps the needs_relayout method.

fn wrap_important_area(&self, size: Vec2) -> Rect

Wraps the important_area method.