35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
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import NodeList from '../node/NodeList.js';
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import * as PropertySymbol from '../../PropertySymbol.js';
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/**
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* Utility for finding labels associated with a form element.
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*/
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export default class HTMLLabelElementUtility {
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/**
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* Returns label elements for a form element.
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*
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* @param element Element to get labels for.
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* @returns Label elements.
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*/
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static getAssociatedLabelElements(element) {
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const id = element.id;
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let labels;
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if (id && element[PropertySymbol.isConnected]) {
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const rootNode = element[PropertySymbol.rootNode] ||
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element[PropertySymbol.ownerDocument];
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labels = (rootNode.querySelectorAll(`label[for="${id}"]`)[PropertySymbol.items]);
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}
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else {
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labels = [];
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}
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let parent = element[PropertySymbol.parentNode];
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while (parent) {
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if (parent['tagName'] === 'LABEL') {
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labels.push(parent);
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break;
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}
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parent = parent[PropertySymbol.parentNode];
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}
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return new NodeList(PropertySymbol.illegalConstructor, labels);
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}
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}
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//# sourceMappingURL=HTMLLabelElementUtility.js.map
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