Sha256: e780e36083e4b6e4e3ab80091546a5de0a178e51006209c9044c8b13fdfcd81b
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Size: 1.33 KB
Versions: 375
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Stored size: 1.33 KB
Contents
/* global aria, matches */
/**
* @description validate if a given role is an allowed ARIA role for the supplied node
* @method isAriaRoleAllowedOnElement
* @param {HTMLElement} node the node to verify
* @param {String} role aria role to check
* @return {Boolean} retruns true/false
*/
aria.isAriaRoleAllowedOnElement = function isAriaRoleAllowedOnElement(
node,
role
) {
const nodeName = node.nodeName.toUpperCase();
const lookupTable = axe.commons.aria.lookupTable;
// if given node can have no role - return false
if (matches(node, lookupTable.elementsAllowedNoRole)) {
return false;
}
// if given node allows any role - return true
if (matches(node, lookupTable.elementsAllowedAnyRole)) {
return true;
}
// get role value (if exists) from lookupTable.role
const roleValue = lookupTable.role[role];
// if given role does not exist in lookupTable - return false
if (!roleValue || !roleValue.allowedElements) {
return false;
}
// validate attributes and conditions (if any) from allowedElement to given node
let out = matches(node, roleValue.allowedElements);
// if given node type has complex condition to evaluate a given aria-role, execute the same
if (Object.keys(lookupTable.evaluateRoleForElement).includes(nodeName)) {
return lookupTable.evaluateRoleForElement[nodeName]({ node, role, out });
}
return out;
};
Version data entries
375 entries across 375 versions & 1 rubygems