Function getBorderWidth

packages/extension/mcp/tools/code/styles/normalize.ts:285–314

(style: StyleMap)

}

function getBorderWidth(style: StyleMap): string | null {
  const sideWidths = BORDER_SIDES.map((side) => {
    const width = style[`border-${side}-width`]
    if (width) return normalizeStyleValue(width)
    const border = style[`border-${side}`]
    if (!border) return null
    const parsed = parseBorderShorthand(normalizeStyleValue(border))
    return parsed.width ? normalizeStyleValue(parsed.width) : null
  })

  if (sideWidths.every((width): width is string => typeof width === 'string' && width.length > 0)) {
    const [first, ...rest] = sideWidths
    if (rest.every((width) => width === first)) {
      return first
    }
  }

  const borderWidth = style['border-width']
  if (borderWidth) {
    const [t, r, b, l] = parseBoxValues(normalizeStyleValue(borderWidth))
    if (t === r && r === b && b === l) return t
  }

  if (style.border) {
    const parsed = parseBorderShorthand(normalizeStyleValue(style.border))
    if (parsed.width) return normalizeStyleValue(parsed.width)
  }

  return null
}

function hasOverflowClipping(style: StyleMap): boolean {
  const overflowValues = [style.overflow, style['overflow-x'], style['overflow-y']]