Ghost-Admin/app/components/gh-skip-link.js

39 lines
1.3 KiB
JavaScript

import Component from '@ember/component';
import {htmlSafe} from '@ember/template';
export default Component.extend({
tagName: 'a',
anchor: '',
classNames: ['sr-only', 'sr-only-focusable'],
// Add attributes to component for href
// href should be set to retain anchor properties
// such as pointer cursor and text underline
attributeBindings: ['href'],
// Used so that upon clicking on the link
// anchor behaviors or ignored
href: htmlSafe('javascript:;'),
click() {
let el = document.querySelector(this.anchor);
if (el) {
// Scrolls to the top of main content or whatever
// is passed to the anchor attribute
document.body.scrollTop = el.getBoundingClientRect().top;
let removeTabindex = function () {
el.removeAttribute('tabindex');
};
// This sets focus on the content which was skipped to
// upon losing focus, the tabindex should be removed
// so that normal keyboard navigation picks up from focused
// element
el.setAttribute('tabindex', -1);
el.focus();
el.addEventListener('blur', removeTabindex);
el.addEventListener('focusout', removeTabindex);
}
}
});