17 lines
579 B
JavaScript
17 lines
579 B
JavaScript
import { helper } from '@ember/component/helper';
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import { CSSResult } from '@lit/reactive-element';
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/**
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* Conditionally maps cssInfos to an array ready for ShadowDom::styles
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* usage.
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*
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* @typedef {([CSSResult, boolean] | [CSSResult])} cssInfo
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* @param {(cssInfo | string)[]} entries - An array of 'entry-like' arrays of `cssInfo`s to map
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*/
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const cssMap = entries => {
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return entries
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.filter(entry => (entry instanceof CSSResult ? true : entry[entry.length - 1]))
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.map(entry => (entry instanceof CSSResult ? entry : entry[0]))
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};
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export default helper(cssMap);
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