FocusEvent

input

Trait FocusEvent 

Source 
pub trait FocusEvent: Sized {
    // Required methods
    fn from_focused(focused: bool, old_event: &Self) -> Option<Self>;
    fn focus<U, F>(&self, f: F) -> Option<U>
       where F: FnMut(bool) -> U;

    // Provided method
    fn focus_args(&self) -> Option<bool> { ... }
}
Expand description

When window gets or loses focus.

Required Methods§

Source

fn from_focused(focused: bool, old_event: &Self) -> Option<Self>

Creates a focus event.

Preserves time stamp from original input event, if any.

Source

fn focus<U, F>(&self, f: F) -> Option<U>
where F: FnMut(bool) -> U,

Calls closure if this is a focus event.

Provided Methods§

Source

fn focus_args(&self) -> Option<bool>

Returns focus arguments.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§