/*
  A place for global mixins (functions and constants).

  Any file with the suffix [*.mixin.styl] will be recognized
  as a mixin and made available to all [.stly] files.

*/


$RED = rgba(255, 0, 0, 0.05)



// --------------------------------------------------------------------




toUnit(prop, value, unit=px)
  if value is not null
    {prop} unit(value, unit)


clearfix()
  // See: https://css-tricks.com/snippets/css/clear-fix/
  &:after
    content ""
    display table
    clear both


// Position --------------------------------------------------------


abs-pos(top = 0, right = 0, bottom = 0, left = 0, unit=px)
  position absolute
  toUnit 'left', left, unit
  toUnit 'top', top, unit
  toUnit 'right', right, unit
  toUnit 'bottom', bottom, unit


fixed-pos(top = 0, right = 0, bottom = 0, left = 0, unit=px)
  position fixed
  toUnit 'left', left, unit
  toUnit 'top', top, unit
  toUnit 'right', right, unit
  toUnit 'bottom', bottom, unit


// Size --------------------------------------------------------


size(width, height = width, unit=px)
  toUnit 'width',  width,  unit
  toUnit 'height', height, unit

min-size(width, height = width, unit=px)
  toUnit 'width',  min-width,  unit
  toUnit 'height', min-height, unit


// Center Position ------------------------------------------------------


abs-center-x(offset = 0)
  position absolute
  left 50%
  transform translateX(-50%)
  toUnit 'margin-left', offset

abs-center-y(offset = 0)
  position absolute
  top 50%
  transform translateY(-50%)
  toUnit 'margin-top', offset

abs-center(offsetX = 0, offsetY = 0)
  position absolute
  left 50%
  top 50%
  transform translate(-50%, -50%)
  toUnit 'margin-left', offsetX
  toUnit 'margin-top', offsetY




// ------------------------------------------------------


bg-image(path, width=null, height=null, repeat=null)
  // Size.
  height = width if height is null
  size(width, height, 'px')

  // Image path.
  if match('.svg$', path)
    // SVG's don't need an @2x retina version.
    background-image url(path)
  else
    // Give all other image types the @2x retina version.
    image path, unit(width, 'px'), unit(height, 'px')

  // Repeat.
  repeat = no-repeat if repeat is null
  background-repeat repeat



// ---------------------------------


query-max-width(pixelWidth)
  'only screen and (max-width : ' + pixelWidth + 'px)'

query-min-width(pixelWidth)
  'only screen and (min-width : ' + pixelWidth + 'px)'

NARROW      = query-max-width(900)
WIDE        = query-min-width(901)
EXTRA_WIDE  = query-min-width(1024)