25 lines
596 B
JavaScript
25 lines
596 B
JavaScript
import { addUniqueItem, removeItem } from 'motion-utils';
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import { compareByDepth } from './compare-by-depth.mjs';
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class FlatTree {
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constructor() {
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this.children = [];
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this.isDirty = false;
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}
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add(child) {
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addUniqueItem(this.children, child);
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this.isDirty = true;
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}
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remove(child) {
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removeItem(this.children, child);
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this.isDirty = true;
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}
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forEach(callback) {
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this.isDirty && this.children.sort(compareByDepth);
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this.isDirty = false;
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this.children.forEach(callback);
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}
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}
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export { FlatTree };
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