Sha256: f3e0720b6050625106d13b833cf0e6ce8fe2b1770b2e0a4251cc693ef81a7354
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Size: 1.42 KB
Versions: 271
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Contents
/* global text, dom, axe, aria */
/**
* Gets the visible text of a label for a given input
* @see http://www.w3.org/WAI/PF/aria/roles#namecalculation
* @method labelVirtual
* @memberof axe.commons.text
* @instance
* @param {VirtualNode} node The virtual node mapping to the input to test
* @return {Mixed} String of visible text, or `null` if no label is found
*/
text.labelVirtual = function(node) {
var ref, candidate, doc;
candidate = aria.labelVirtual(node);
if (candidate) {
return candidate;
}
// explicit label
if (node.actualNode.id) {
const id = axe.utils.escapeSelector(node.actualNode.getAttribute('id'));
doc = axe.commons.dom.getRootNode(node.actualNode);
ref = doc.querySelector('label[for="' + id + '"]');
candidate = ref && text.visible(ref, true);
if (candidate) {
return candidate;
}
}
ref = dom.findUpVirtual(node, 'label');
candidate = ref && text.visible(ref, true);
if (candidate) {
return candidate;
}
return null;
};
/**
* Finds virtual node and calls labelVirtual()
* IMPORTANT: This method requires the composed tree at axe._tree
* @see axe.commons.text.virtualLabel
* @method label
* @memberof axe.commons.text
* @instance
* @param {Element} node The virtual node mapping to the input to test
* @return {Mixed} String of visible text, or `null` if no label is found
*/
text.label = function(node) {
node = axe.utils.getNodeFromTree(node);
return text.labelVirtual(node);
};
Version data entries
271 entries across 271 versions & 1 rubygems