94 lines
2.8 KiB
JavaScript
94 lines
2.8 KiB
JavaScript
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/**
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* Accordion-folding functionality.
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*
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* Markup with the appropriate classes will be automatically hidden,
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* with one section opening at a time when its title is clicked.
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* Use the following markup structure for accordion behavior:
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*
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* <div class="accordion-container">
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* <div class="accordion-section open">
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* <h3 class="accordion-section-title"></h3>
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* <div class="accordion-section-content">
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* </div>
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* </div>
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* <div class="accordion-section">
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* <h3 class="accordion-section-title"></h3>
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* <div class="accordion-section-content">
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* </div>
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* </div>
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* <div class="accordion-section">
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* <h3 class="accordion-section-title"></h3>
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* <div class="accordion-section-content">
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* </div>
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* </div>
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* </div>
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*
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* Note that any appropriate tags may be used, as long as the above classes are present.
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*
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* @since 3.6.0.
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*/
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( function( $ ){
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$( document ).ready( function () {
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// Expand/Collapse accordion sections on click.
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$( '.accordion-container' ).on( 'click keydown', '.accordion-section-title', function( e ) {
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if ( e.type === 'keydown' && 13 !== e.which ) { // "return" key
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return;
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}
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e.preventDefault(); // Keep this AFTER the key filter above
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accordionSwitch( $( this ) );
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});
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});
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/**
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* Close the current accordion section and open a new one.
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*
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* @param {Object} el Title element of the accordion section to toggle.
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* @since 3.6.0
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*/
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function accordionSwitch ( el ) {
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var section = el.closest( '.accordion-section' ),
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sectionToggleControl = section.find( '[aria-expanded]' ).first(),
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container = section.closest( '.accordion-container' ),
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siblings = container.find( '.open' ),
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siblingsToggleControl = siblings.find( '[aria-expanded]' ).first(),
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content = section.find( '.accordion-section-content' );
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// This section has no content and cannot be expanded.
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if ( section.hasClass( 'cannot-expand' ) ) {
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return;
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}
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// Add a class to the container to let us know something is happening inside.
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// This helps in cases such as hiding a scrollbar while animations are executing.
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container.addClass( 'opening' );
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if ( section.hasClass( 'open' ) ) {
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section.toggleClass( 'open' );
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content.toggle( true ).slideToggle( 150 );
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} else {
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siblingsToggleControl.attr( 'aria-expanded', 'false' );
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siblings.removeClass( 'open' );
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siblings.find( '.accordion-section-content' ).show().slideUp( 150 );
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content.toggle( false ).slideToggle( 150 );
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section.toggleClass( 'open' );
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}
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// We have to wait for the animations to finish
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setTimeout(function(){
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container.removeClass( 'opening' );
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}, 150);
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// If there's an element with an aria-expanded attribute, assume it's a toggle control and toggle the aria-expanded value.
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if ( sectionToggleControl ) {
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sectionToggleControl.attr( 'aria-expanded', String( sectionToggleControl.attr( 'aria-expanded' ) === 'false' ) );
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}
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}
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})(jQuery);
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