Function asTextStyle

packages/core/src/renderer/styles.ts:25–50

(v: unknown, theme?: Theme)

 * Coerce unknown value to TextStyle if object-shaped.
 */
export function asTextStyle(v: unknown, theme?: Theme): TextStyle | undefined {
  if (!isObject(v)) return undefined;
  const style = v as TextStyle;
  if (!theme) return style;

  const resolvedFg = resolveStyleColor(theme, style.fg) as TextStyle["fg"];
  const resolvedBg = resolveStyleColor(theme, style.bg) as TextStyle["bg"];
  const resolvedUnderlineColor = resolveStyleColor(theme, style.underlineColor) as
    | TextStyle["underlineColor"]
    | undefined;

  if (
    resolvedFg === style.fg &&
    resolvedBg === style.bg &&
    resolvedUnderlineColor === style.underlineColor
  ) {
    return style;
  }

  return {
    ...style,
    ...(resolvedFg === undefined ? {} : { fg: resolvedFg }),
    ...(resolvedBg === undefined ? {} : { bg: resolvedBg }),
    ...(resolvedUnderlineColor === undefined ? {} : { underlineColor: resolvedUnderlineColor }),
  };
}

/** Visual state for button/input styling. */
export type ButtonVisualState = Readonly<{ focused: boolean; disabled: boolean }>;