Enum Titlebar 

pub enum Titlebar {
    Standard,
    Medium,
    Tall,
}

How tall the titlebar strip is under Chrome::Custom (backlog W22): on macOS where the traffic lights sit in it, and everywhere the height widgets::titlebar draws at.

On macOS the lights are AppKit’s to place: a taller titlebar is AppKit’s own taller one, made by giving the window an empty toolbar, and AppKit keeps the lights in it through resizing, fullscreen and focus. Measured on macOS 27, the strip about the lights and the close button’s top-left corner:

	strip	lights at
Standard	32	(9, 9)
Medium	40	(12, 13)
Tall	52	(19, 19)

The numbers are the OS’s, and moved between releases before; what the window got is env.window.native_controls, measured, widgets::titlebar lays out against it, and the window’s titlebar_h metric is the measured height too, Standard included.

On Windows and Linux the strip under custom chrome is the app’s, as tall as the titlebar_h metric: Medium and Tall make that window’s platform height 40 and 52 (Titlebar::strip_h) in place of the caption’s 32 or 34, so ui.metrics().titlebar_h, $titlebar_h and the drawn buttons, which grow to the strip, all read it. An app’s own metrics keep it while their titlebar_h is the stock number (Metrics::compact(), Node’s base); a number of the app’s own wins (Core::set_platform_titlebar_h).

Nothing under Chrome::Native or Chrome::Borderless, on a popup or on the devtools’ window.

Variants

Standard

The titlebar a window without a toolbar has (the default).

Medium

A compact toolbar’s (NSWindowToolbarStyle::UnifiedCompact).

Tall

A full toolbar’s (NSWindowToolbarStyle::Unified).

Implementations

impl Titlebar

pub const NAMES: [&'static str; 3]

Every name Titlebar::from_name reads, in order.

pub const fn strip_h(self) -> Option<f32>

The strip’s height off macOS, where the strip under custom chrome is the app’s: the height the macOS titlebar of the same name has on macOS 27, so one ask draws one strip on all three. None for Standard, which is the platform’s own caption height.

pub fn from_name(name: &str) -> Option<Self>

The variant a binding names in lower case ("medium").

Trait Implementations

impl Clone for Titlebar

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Titlebar

impl Debug for Titlebar

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

Formats the value using the given formatter.

impl Default for Titlebar

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Titlebar

impl PartialEq for Titlebar

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Titlebar