Sha256: 86a56c0e50cd392fcd6627cf831107bb8f6d796100d16a0f9dd650cf23547bfd
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Versions: 375
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Contents
/* global aria, axe */
/**
* Return the accessible role of an element
*
* @method getRole
* @memberof axe.commons.aria
* @instance
* @param {Element} node
* @param {Object} options
* @param {boolean} options.noImplicit Do not return the implicit role
* @param {boolean} options.fallback Allow fallback roles
* @param {boolean} options.abstracts Allow role to be abstract
* @param {boolean} options.dpub Allow role to be any (valid) doc-* roles
* @returns {string|null} Role or null
*/
aria.getRole = function getRole(
node,
{ noImplicit, fallback, abstracts, dpub } = {}
) {
node = node.actualNode || node;
if (node.nodeType !== 1) {
return null;
}
const roleAttr = (node.getAttribute('role') || '').trim().toLowerCase();
const roleList = fallback ? axe.utils.tokenList(roleAttr) : [roleAttr];
// Get the first valid role:
const validRoles = roleList.filter(role => {
if (!dpub && role.substr(0, 4) === 'doc-') {
return false;
}
return aria.isValidRole(role, { allowAbstract: abstracts });
});
const explicitRole = validRoles[0];
// Get the implicit role, if permitted
if (!explicitRole && !noImplicit) {
return aria.implicitRole(node);
}
return explicitRole || null;
};
Version data entries
375 entries across 375 versions & 1 rubygems