WordPress/wp-content/themes/twentysixteen/js/skip-link-focus-fix.js
Weston Ruter 4e30de26c6 Bundled Themes: Remove/disable obsolete IE-specific skip-link-focus-fix.
* Removes script from the `wp_print_footer_scripts` action in Twenty Nineteen, Twenty Twenty, and Twenty Twenty-One.
* Switches enqueue functions to just register the scripts in Twenty Fifteen, Twenty Sixteen, and Twenty Seventeen.
* Rearranges Twenty Seventeen's scripts to connect `twentyseventeenScreenReaderText` with the global script instead of the unused skip link fix.
* Updates scripts in Twenty Fifteen and Twenty Sixteen with code from Twenty Seventeen _to run on Internet Explorer only_. Twenty Sixteen needed to keep an adjustment that offsets the toolbar and border.
* Removes the script from JS files in Twenty Thirteen and Twenty Fourteen and edits their modified dates.

Props sabernhardt, westonruter, joedolson, flixos90, mukesh27.
Fixes #54421.

Built from https://develop.svn.wordpress.org/trunk@55861


git-svn-id: http://core.svn.wordpress.org/trunk@55373 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2023-05-26 17:25:23 +00:00

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810 B
JavaScript

/**
* File skip-link-focus-fix.js.
*
* Helps with accessibility for keyboard only users.
*
* Learn more: https://git.io/vWdr2
*/
( function() {
var isIe = /(trident|msie)/i.test( navigator.userAgent );
if ( isIe && document.getElementById && window.addEventListener ) {
window.addEventListener( 'hashchange', function() {
var id = location.hash.substring( 1 ),
element;
if ( ! ( /^[A-z0-9_-]+$/.test( id ) ) ) {
return;
}
element = document.getElementById( id );
if ( element ) {
if ( ! ( /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) ) ) {
element.tabIndex = -1;
}
element.focus();
// Repositions the window on jump-to-anchor to account for admin bar and border height.
window.scrollBy( 0, -53 );
}
}, false );
}
} )();