Trait piston::FocusEvent

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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§

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

Creates a focus event.

Preserves time stamp from original input event, if any.

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

Calls closure if this is a focus event.

Provided Methods§

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

Returns focus arguments.

Object Safety§

This trait is not object safe.

Implementors§