/
ariaRoles.js
77 lines (76 loc) · 2.35 KB
/
ariaRoles.js
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/**
** use [htmlDatas.js, ariaDatas.js, implicitAriaRoles.js]
*/
var getComputedAriaRole = function () {
if (this.hasAttribute('role')) {
var role = this.getAttribute('role');
if (role.trim().length > 0) {
var roles = role.split(' ');
var computedRole = null;
if (roles.length > 1) {
for (var i = 0; i < roles.length; i++) {
role = new ARIA.Role(roles[i]);
if (role.isValid()) {
computedRole = role.role;
break;
}
}
if (computedRole) {
if (computedRole == 'presentation' || computedRole == 'none') {
if (this.matches(HTML.getFocusableElementsSelector())) {
return this.getImplicitAriaRole();
}
}
return computedRole;
}
else {
return this.getImplicitAriaRole();
}
}
else {
role = new ARIA.Role(role);
if (role.isValid()) {
if (role.role == 'presentation' || role.role == 'none') {
if (this.matches(HTML.getFocusableElementsSelector())) {
return this.getImplicitAriaRole();
}
}
return role.role;
}
else {
return this.getImplicitAriaRole();
}
}
}
else {
return this.getImplicitAriaRole();
}
}
else {
return this.getImplicitAriaRole();
}
};
var hasValidRole = function () {
var role = this.getAttribute('role');
if (role.trim().length > 0) {
role = role.split(' ');
if (role.length > 1) {
var result = false;
for (var i = 0; i < role.length; i++) {
var token = new ARIA.Role(role[i]);
if (token.isValid()) {
result = true;
break;
}
}
return result;
}
else {
role = new ARIA.Role(role);
return role.isValid();
}
}
else {
return false;
}
};