mirror of https://github.com/jkjoy/sunpeiwen.git
37 lines
837 B
JavaScript
37 lines
837 B
JavaScript
var nodes = require('../nodes')
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, hsla = require('./hsla')
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, component = require('./component');
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/**
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* Return the saturation component of the given `color`,
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* or set the saturation component to the optional second `value` argument.
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*
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* Examples:
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*
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* saturation(#00c)
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* // => 100%
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*
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* saturation(#00c, 50%)
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* // => #339
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*
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* @param {RGBA|HSLA} color
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* @param {Unit} [value]
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* @return {Unit|RGBA}
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* @api public
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*/
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function saturation(color, value){
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if (value) {
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var hslaColor = color.hsla;
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return hsla(
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new nodes.Unit(hslaColor.h),
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value,
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new nodes.Unit(hslaColor.l),
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new nodes.Unit(hslaColor.a)
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)
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}
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return component(color, new nodes.String('saturation'));
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}
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saturation.params = ['color', 'value'];
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module.exports = saturation;
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