bulma/sass/utilities/functions.sass
2019-05-20 21:58:02 +01:00

68 lines
2.5 KiB
Sass

@function mergeColorMaps($bulma-colors, $custom-colors)
// We return at least Bulma's hard-coded colors
$merged-colors: $bulma-colors
// We want a map as input
@if type-of($custom-colors) == 'map'
@each $name, $components in $custom-colors
// The color name should be a string
// and the components either a single color
// or a colors list with at least one element
@if type-of($name) == 'string' and (type-of($components) == 'list' or type-of($components) == 'color') and length($components) >= 1
$color-base: null
$value: null
// The param can either be a single color
// or a list of 2 colors
@if type-of($components) == 'color'
$color-base: $components
$value: $components
@else if type-of($components) == 'list'
$color-base: nth($components, 1)
$color-invert: null
// Check if the invert color is provided,
// otherwise compute it
@if length($components) > 1
$color-invert: nth($components, 2)
@else
$color-invert: findColorInvert($color-base)
$value: ($color-base, $color-invert)
// We only want to merge the map if the color base is an actual color
@if type-of($color-base) == 'color'
// We merge this colors elements as map with Bulma's colors map
// (we can override them this way, no multiple definition for the same name)
// $merged-colors: map_merge($merged-colors, ($name: ($color-base, $color-invert)))
$merged-colors: map_merge($merged-colors, ($name: $value))
@return $merged-colors
@function powerNumber($number, $exp)
$value: 1
@if $exp > 0
@for $i from 1 through $exp
$value: $value * $number
@else if $exp < 0
@for $i from 1 through -$exp
$value: $value / $number
@return $value
@function colorLuminance($color)
$color-rgb: ('red': red($color),'green': green($color),'blue': blue($color))
@each $name, $value in $color-rgb
$adjusted: 0
$value: $value / 255
@if $value < 0.03928
$value: $value / 12.92
@else
$value: ($value + .055) / 1.055
$value: powerNumber($value, 2)
$color-rgb: map-merge($color-rgb, ($name: $value))
@return (map-get($color-rgb, 'red') * .2126) + (map-get($color-rgb, 'green') * .7152) + (map-get($color-rgb, 'blue') * .0722)
@function findColorInvert($color)
@if (colorLuminance($color) > 0.55)
@return rgba(#000, 0.7)
@else
@return #fff