/**
* Accordion-folding functionality.
*
* Markup with the appropriate classes will be automatically hidden,
* with one section opening at a time when its title is clicked.
* Use the following markup structure for accordion behavior:
*
*
*
* Note that any appropriate tags may be used, as long as the above classes are present.
*
* @since 3.6.0.
*/
( function( $ ){
$( document ).ready( function () {
// Expand/Collapse accordion sections on click.
$( .accordion-container ).on( click keydown, .accordion-section-title, function( e ) {
if ( e.type === keydown && 13 !== e.which ) { // "return" key
return;
}
e.preventDefault(); // Keep this AFTER the key filter above
accordionSwitch( $( this ) );
});
});
/**
* Close the current accordion section and open a new one.
*
* @param {Object} el Title element of the accordion section to toggle.
* @since 3.6.0
*/
function accordionSwitch ( el ) {
var section = el.closest( .accordion-section ),
sectionToggleControl = section.find( [aria-expanded] ).first(),
container = section.closest( .accordion-container ),
siblings = container.find( .open ),
siblingsToggleControl = siblings.find( [aria-expanded] ).first(),
content = section.find( .accordion-section-content );
// This section has no content and cannot be expanded.
if ( section.hasClass( cannot-expand ) ) {
return;
}
// Add a class to the container to let us know something is happening inside.
// This helps in cases such as hiding a scrollbar while animations are executing.
container.addClass( opening );
if ( section.hasClass( open ) ) {
section.toggleClass( open );
content.toggle( true ).slideToggle( 150 );
} else {
siblingsToggleControl.attr( aria-expanded, false );
siblings.removeClass( open );
siblings.find( .accordion-section-content ).show().slideUp( 150 );
content.toggle( false ).slideToggle( 150 );
section.toggleClass( open );
}
// We have to wait for the animations to finish
setTimeout(function(){
container.removeClass( opening );
}, 150);
// If theres an element with an aria-expanded attribute, assume its a toggle control and toggle the aria-expanded value.
if ( sectionToggleControl ) {
sectionToggleControl.attr( aria-expanded, String( sectionToggleControl.attr( aria-expanded ) === false ) );
}
}
})(jQuery);