Module: Imgix

Defined in:

lib/imgix.rb,
lib/imgix/path.rb,
lib/imgix/client.rb,
lib/imgix/version.rb,
lib/imgix/param_helpers.rb

Defined Under Namespace

Modules: ParamHelpers Classes: Client, Path

Constant Summary

DOMAIN_REGEX =

regex pattern used to determine if a domain is valid

/^(?:[a-z\d\-_]{1,62}\.){0,125}(?:[a-z\d](?:\-(?=\-*[a-z\d])|[a-z]|\d){0,62}\.)[a-z\d]{1,63}$/i

DEFAULT_WIDTH_TOLERANCE =

determines the growth rate when building out srcset pair widths

0.08

MIN_WIDTH =

the default minimum srcset width

100

MAX_WIDTH =

the default maximum srcset width, also the max width supported by imgix

8192

TARGET_WIDTHS =

returns an array of width values used during scrset generation

lambda { |tolerance, min, max|
  increment_percentage = tolerance || DEFAULT_WIDTH_TOLERANCE
  unless increment_percentage.is_a? Numeric and increment_percentage > 0
    raise ArgumentError, "The width_tolerance argument must be passed a positive scalar value"
  end

  max_size = max || MAX_WIDTH
  resolutions = []
  prev = min || MIN_WIDTH

  while(prev <= max_size)
    # ensures that each width is even
    resolutions.push((2 * (prev / 2).round))
    prev *= 1 + (increment_percentage * 2)
  end

  resolutions.push(max_size)
  return resolutions
}

DPR_QUALITY =

hash of default quality parameter values mapped by each dpr srcset entry

{
  1 => 75, 
  2 => 50,
  3 => 35,
  4 => 23,
  5 => 20
}

VERSION =

'3.2.0'