WordPress/wp-content/themes/twentyfifteen/js/skip-link-focus-fix.js
Ian Stewart affa411402 Importing Twenty Fifteen, first pass at our new default theme for 2015, set for 4.1.
It's good for posts, it's good for pages, it might be good for you. Development will occur in trunk. Have at it.

Props matt, iandstewart, iamtakashi, obenland, cainm, kristastevens, karmatosed, chellycat, lancewillett, kwight, davidakennedy. See #29799


Built from https://develop.svn.wordpress.org/trunk@29892


git-svn-id: http://core.svn.wordpress.org/trunk@29648 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2014-10-14 19:28:18 +00:00

26 lines
852 B
JavaScript

/**
* Makes "skip to content" link work correctly in IE9, Chrome, and Opera
* for better accessibility.
*
* @link http://www.nczonline.net/blog/2013/01/15/fixing-skip-to-content-links/
*/
( function() {
var is_webkit = navigator.userAgent.toLowerCase().indexOf( 'webkit' ) > -1,
is_opera = navigator.userAgent.toLowerCase().indexOf( 'opera' ) > -1,
is_ie = navigator.userAgent.toLowerCase().indexOf( 'msie' ) > -1;
if ( ( is_webkit || is_opera || is_ie ) && document.getElementById && window.addEventListener ) {
window.addEventListener( 'hashchange', function() {
var element = document.getElementById( location.hash.substring( 1 ) );
if ( element ) {
if ( ! /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) ) {
element.tabIndex = -1;
}
element.focus();
}
}, false );
}
} )();