Struct SessionWatch 

pub struct SessionWatch { /* private fields */ }

Watches whether anything on screen can be seen; see the module. Dropping it stops the watch.

Implementations

impl SessionWatch

pub fn new(changed: impl Fn() + Send + Sync + 'static) -> Option<Self>

Start watching, on the main thread. changed runs each time away changes on a notification, on whatever thread the system posts it from. None on every platform but macOS, and off the main thread.

pub fn away(&self) -> bool

Whether nothing on screen can be seen now: the displays sleep, the screen is locked, or another session has the console.

pub fn recheck(&self) -> bool

Clear each reason the system no longer reports, should the notification that clears it not have come; whether away changed. For while it is away, on the main thread.

Trait Implementations

impl Debug for SessionWatch

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.