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( function () {
'use strict';
function initToc( tocNode ) {
const toggleNode = tocNode.querySelector( '.toctogglecheckbox' );
if ( !toggleNode ) {
return;
}
let hidden = false;
toggleNode.addEventListener( 'change', () => {
hidden = !hidden;
mw.cookie.set( 'hidetoc', hidden ? '1' : null );
toggleNode.setAttribute( 'aria-label', hidden ?
mw.message( 'table-of-contents-show-button-aria-label' ).plain() :
mw.message( 'table-of-contents-hide-button-aria-label' ).plain()
);
} );
// Initial state
if ( mw.cookie.get( 'hidetoc' ) === '1' ) {
toggleNode.checked = true;
hidden = true;
}
toggleNode.setAttribute( 'aria-label', hidden ?
mw.message( 'table-of-contents-show-button-aria-label' ).plain() :
mw.message( 'table-of-contents-hide-button-aria-label' ).plain()
);
}
mw.hook( 'wikipage.content' ).add( ( $content ) => {
const tocs = $content[ 0 ] ? $content[ 0 ].querySelectorAll( '.toc' ) : [];
let i = tocs.length;
while ( i-- ) {
initToc( tocs[ i ] );
}
} );
}() );