Function convertColorToRGBA

lib/colorUtils.js:192–217

* Convert a colour to a normalised RGBA format * Required due to the different color formats * returned by different web drivers. * * Examples: * rgb(85,0,0) => rgba(85, 0, 0, 1) * * @param {string} color Color as a string, i.e. rgb(85,0,0)

(color)

 * @param {string} color Color as a string, i.e. rgb(85,0,0)
 */
function convertColorToRGBA(color) {
  const cstr = `${color}`.toLowerCase().trim() || ''

  if (!/^rgba?\(.+?\)$/.test(cstr)) {
    // Convert both color names and hex colors to rgba
    const hexColor = convertColorNameToHex(color)
    return convertHexColorToRgba(hexColor)
  }

  // Convert rgb to rgba
  const channels = cstr.match(/([\-0-9.]+)/g) || []

  switch (channels.length) {
    case 3:
      // Convert rgb to rgba
      return `rgba(${channels.join(', ')}, 1)`

    case 4:
      // Format rgba
      return `rgba(${channels.join(', ')})`

    default:
      // Unexpected color format. Leave it untouched (let the user handle it)
      return color
  }
}

/**
 * Test if the given css property name is one that holds color information