Struct SimpleHeaderline 

pub struct SimpleHeaderline<S: Send + Sync + 'static> { /* private fields */ }

Ready-made Headerline impl for modes with dedicated header state.

Not constructed directly — create via SimpleHeaderlineHandle::new.

Trait Implementations

impl<S: Send + Sync + 'static> Debug for SimpleHeaderline<S>

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

Formats the value using the given formatter.

impl<S: Send + Sync + 'static> Headerline for SimpleHeaderline<S>

fn version(&self) -> u64

Monotonic counter. Bump whenever the row content changes. The worker skips render() when the version is unchanged since the last call.

fn render(&self) -> Option<HeaderlineRow>

Build the current row. Return None to hide the header entirely. Must not block — cache results; background tasks push updates via the owning handle.