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Sass: Generating decoupled color schemes #sass
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// ---- | |
// Sass (v3.4.1) | |
// Compass (v1.0.1) | |
// ---- | |
// Sass: Generating decoupled color schemes | |
// Helper functions | |
@function tint($color, $percentage) { | |
@return mix(white, $color, $percentage); | |
} | |
@function shade($color, $percentage) { | |
@return mix(black, $color, $percentage); | |
} | |
// Toninzed color scheme (a presentational color scheme generator) | |
@function tone-schemer($name, $color, $lightenizer: 'tint', $darkenizer: 'shade') { | |
$scheme: ( | |
#{$name}-lightest: call($lightenizer, $color, 75%), | |
#{$name}-lighter : call($lightenizer, $color, 50%), | |
#{$name}-light : call($lightenizer, $color, 25%), | |
#{$name} : $color, | |
#{$name}-dark : call($darkenizer, $color, 25%), | |
#{$name}-darker : call($darkenizer, $color, 50%), | |
#{$name}-darkest : call($darkenizer, $color, 75%), | |
); | |
@return $scheme; | |
} | |
// State color scheme generator (a semantic color scheme generator) | |
@function state-schemer($color, $alt-color) { | |
$scheme: ( | |
color : $color, | |
alt-color : $alt-color, | |
active : $alt-color, | |
alt-active: $color | |
); | |
@return $scheme; | |
} | |
// Scheme generator that calls a generator with the parameters | |
@function generate-scheme($generator, $parameters: ()) { | |
$scheme: (); | |
// do something (e.g. error handling) | |
$scheme: call($generator, $parameters...); | |
@return $scheme; | |
} | |
// Use cases | |
// Color scheme definitions | |
$red-scheme: generate-scheme( | |
'tone-schemer', | |
( | |
name: 'red', | |
color: #f66 | |
) | |
); | |
$button-scheme: generate-scheme( | |
'state-schemer', | |
( | |
color : #fff, | |
alt-color: #66f | |
) | |
); | |
// The result | |
.schemes { | |
red-scheme : inspect($red-scheme); | |
button-scheme: inspect($button-scheme); | |
} | |
strong { | |
color: map-get($red-scheme, 'red-darker'); | |
} | |
@mixin button($color, $alt-color, $active, $alt-active) { | |
color: $color; | |
background: $alt-color; | |
&:hover, | |
&:focus { | |
color: $active; | |
background: $alt-active; | |
} | |
} | |
.button { | |
@include button($button-scheme...); | |
} |
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.schemes { | |
red-scheme: (red-lightest: #ffd8d8, red-lighter: #ffb2b2, red-light: #ff8c8c, red: #f66, red-dark: #bf4c4c, red-darker: #7f3333, red-darkest: #3f1919); | |
button-scheme: (color: #fff, alt-color: #66f, active: #66f, alt-active: #fff); | |
} | |
strong { | |
color: #7f3333; | |
} | |
.button { | |
color: #fff; | |
background: #66f; | |
} | |
.button:hover, .button:focus { | |
color: #66f; | |
background: #fff; | |
} |
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