lucid-ui
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A UI component library from AppNexus.
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<a href="../index.html">All files</a> / <a href="index.html">util</a> style-helpers.js
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import _ from 'lodash';
import classNames from 'classnames';
/**
* bindClassNames
*
* Returns a version of the `classnames` functions where `&` is bound to a given
* value. The returned functions can be further bound to more specific values for
* `&` which allows your bound classnames to look closer to style selector.
*
* Examples:
* bindClassNames('lucid')('&-Button') === 'lucid-Button'
* bindClassNames('lucid').bind('&-Button')('&-active') === 'lucid-Button-active'
*/
export function bindClassNames(value='', variable=/&/g) {
function cx(...args) {
return _.map(
classNames(...args).split(' '),
(className) => className.replace(variable, value)
).join(' ');
}
return _.assign(cx, {
bind(nextValue=value, ...args) {
return bindClassNames(nextValue.replace(variable, value), ...args);
},
});
}
export const NAMESPACE = 'lucid';
/**
* Exports a lucid-bound version of classnames, which can be make more specific
* to a component.
*
* Example:
* const cx = lucidClassNames.bind('&-Button')
*
* cx('&',{
* '&-active': true
* }, ['custom-classname']) === 'lucid-Button lucid-Button-active custom-classname'
*/
export const lucidClassNames = bindClassNames(NAMESPACE);
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