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af7a04318d
Add missing `@since` tags for some functions. Correct alignment of some `@param` tags. Follow-up to [46271], [46278], [51304]. See #52628, #53461. Built from https://develop.svn.wordpress.org/trunk@51322 git-svn-id: http://core.svn.wordpress.org/trunk@50931 1a063a9b-81f0-0310-95a4-ce76da25c4cd
36 lines
823 B
JavaScript
36 lines
823 B
JavaScript
/**
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* File skip-link-focus-fix.js.
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*
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* Helps with accessibility for keyboard only users.
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*
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* This is the source file for what is minified in the twentytwenty_skip_link_focus_fix() PHP function.
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*
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* Learn more: https://git.io/vWdr2
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*
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* @since Twenty Twenty 1.0
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*/
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( function() {
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var isIe = /(trident|msie)/i.test( navigator.userAgent );
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if ( isIe && document.getElementById && window.addEventListener ) {
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window.addEventListener( 'hashchange', function() {
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var id = location.hash.substring( 1 ),
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element;
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if ( ! ( /^[A-z0-9_-]+$/.test( id ) ) ) {
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return;
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}
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element = document.getElementById( id );
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if ( element ) {
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if ( ! ( /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) ) ) {
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element.tabIndex = -1;
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}
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element.focus();
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}
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}, false );
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}
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}() );
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