Struct ElementHandle 

pub struct ElementHandle<'a> { /* private fields */ }

Handle returned by Elements::add for chaining .key() and .width().

This handle has a builder-style API — call methods on it immediately after adding a component to an Elements list:

let mut els = Elements::new();
els.add(Spinner::new("loading..."))
    .key("my-spinner")
    .width(WidthConstraint::Fixed(20));

Implementations

impl<'a> ElementHandle<'a>

pub fn key(self, key: impl Into<String>) -> Self

Set a key for stable identity across rebuilds.

Keyed elements are matched by key during reconciliation, allowing them to survive position changes. Without a key, elements are matched by position and type.

pub fn width(self, constraint: WidthConstraint) -> Self

Set the width constraint for this element within a horizontal container.

Only meaningful when the element is a child of an HStack. Fixed(n) reserves exactly n columns. Fill (default) takes remaining space, split equally among Fill siblings.