Class: Tuile::Theme::Ref

Inherits:
Object
  • Object
show all
Defined in:
lib/tuile/theme.rb,
sig/tuile.rbs

Overview

A live reference to a theme token, resolved against the current theme at paint time rather than baked to a concrete Color. Assign one where a slot is resolved late — currently Component#bg_color= — and it follows light/dark flips with no Component#on_theme_changed hook:

panel.bg_color = Tuile::Theme.ref(:panel_bg)        # a #custom token
dropdown.bg_color = Tuile::Theme.ref(:input_bg_color) # built-in chrome

The name may be a built-in chrome token (CHROME_TOKENS) or a #custom one; a chrome name takes precedence on the (pathological) collision. This does not add a global bg/fg token — it only lets a slot point at a color the theme already carries, resolved the same way framework chrome already resolves it.

Distinct from Color.coerce's symbol support, which names one of the 16 ANSI colors and yields a fixed Color; a Ref names a theme token and re-reads it each paint.

Immutable.

Instance Method Summary collapse

Instance Method Details

#resolve(theme) ⇒ Color

Resolves to the concrete Color name maps to in theme — a built-in chrome reader when name is one (Tuile::Theme.chrome_token?), else a Tuile::Theme#custom token.

@param theme

Parameters:

Returns:



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# File 'lib/tuile/theme.rb', line 150

def resolve(theme)
  return theme.public_send(name) if Theme.chrome_token?(name)

  theme[name]
end