"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.getLabelContent = getLabelContent; exports.getLabels = getLabels; exports.getRealLabels = getRealLabels; var _helpers = require("./helpers"); const labelledNodeNames = ['button', 'meter', 'output', 'progress', 'select', 'textarea', 'input']; function getTextContent(node) { if (labelledNodeNames.includes(node.nodeName.toLowerCase())) { return ''; } if (node.nodeType === _helpers.TEXT_NODE) return node.textContent; return Array.from(node.childNodes).map(childNode => getTextContent(childNode)).join(''); } function getLabelContent(element) { let textContent; if (element.tagName.toLowerCase() === 'label') { textContent = getTextContent(element); } else { textContent = element.value || element.textContent; } return textContent; } // Based on https://github.com/eps1lon/dom-accessibility-api/pull/352 function getRealLabels(element) { // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition -- types are not aware of older browsers that don't implement `labels` if (element.labels !== undefined) { var _labels; return (_labels = element.labels) != null ? _labels : []; } if (!isLabelable(element)) return []; const labels = element.ownerDocument.querySelectorAll('label'); return Array.from(labels).filter(label => label.control === element); } function isLabelable(element) { return /BUTTON|METER|OUTPUT|PROGRESS|SELECT|TEXTAREA/.test(element.tagName) || element.tagName === 'INPUT' && element.getAttribute('type') !== 'hidden'; } function getLabels(container, element, { selector = '*' } = {}) { const ariaLabelledBy = element.getAttribute('aria-labelledby'); const labelsId = ariaLabelledBy ? ariaLabelledBy.split(' ') : []; return labelsId.length ? labelsId.map(labelId => { const labellingElement = container.querySelector(`[id="${labelId}"]`); return labellingElement ? { content: getLabelContent(labellingElement), formControl: null } : { content: '', formControl: null }; }) : Array.from(getRealLabels(element)).map(label => { const textToMatch = getLabelContent(label); const formControlSelector = 'button, input, meter, output, progress, select, textarea'; const labelledFormControl = Array.from(label.querySelectorAll(formControlSelector)).filter(formControlElement => formControlElement.matches(selector))[0]; return { content: textToMatch, formControl: labelledFormControl }; }); }