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32 lines
841 B
JavaScript
32 lines
841 B
JavaScript
import { htmlSafe } from '@ember/template';
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// A decorator for transforming an object into an html
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// compatible style attribute string.
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//
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// ex. @styleString
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// get styleStr() {
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// return { color: '#FF0', 'border-width': '1px' }
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// }
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export default function styleString(target, name, descriptor) {
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if (!descriptor.get) throw new Error('styleString only works on getters');
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const orig = descriptor.get;
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descriptor.get = function() {
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const styles = orig.apply(this);
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let str = '';
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if (styles) {
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str = Object.keys(styles)
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.reduce(function(arr, key) {
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const val = styles[key];
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arr.push(key + ':' + (typeof val === 'number' ? val.toFixed(2) + 'px' : val));
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return arr;
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}, [])
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.join(';');
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}
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return htmlSafe(str);
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};
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return descriptor;
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}
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