Enum TabOverflowButton 

pub enum TabOverflowButton {
    Auto,
    Always,
    Never,
}

When the trailing “show all tabs” overflow dropdown button appears.

The dropdown is a chevron-down PopoverIconButton whose popover lists every tab (a jump-to menu for tabs scrolled out of view). This mode governs when the button itself is shown — independent of whether the tabs actually overflow the viewport (which is what drives the scroll arrows).

Variants

Auto

Show the button only when the tab headers overflow the bar’s viewport — i.e. exactly when there is something scrolled out of view, the same condition that auto-reveals the scroll arrows. The default: the button stays out of the way until it is useful.

Always

Always show the button whenever the bar has at least one tab, even when every tab is already visible (a persistent jump-to affordance).

Never

Never show the button.

Trait Implementations

impl Clone for TabOverflowButton

fn clone(&self) -> TabOverflowButton

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for TabOverflowButton

impl Debug for TabOverflowButton

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

Formats the value using the given formatter.

impl Default for TabOverflowButton

fn default() -> TabOverflowButton

Returns the “default value” for a type.

impl Eq for TabOverflowButton

impl PartialEq for TabOverflowButton

fn eq(&self, other: &TabOverflowButton) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TabOverflowButton