woocommerce/assets/js/frontend/single-product.js

jQuery( function( $ ) {

	// wc_single_product_params is required to continue, ensure the object exists
	if ( typeof wc_single_product_params === 'undefined' ) {
		return false;
	}

	// Tabs
	$('.wc-tabs-wrapper, .woocommerce-tabs')
		.on( 'init', function() {
			$('.wc-tab, .panel:not(.panel .panel)').hide();

			var hash  = window.location.hash;
			var url   = window.location.href;
			var $tabs = $( this ).find('.wc-tabs, ul.tabs').first();

			if ( hash.toLowerCase().indexOf( "comment-" ) >= 0 || hash == '#reviews' ) {
				$tabs.find('li.reviews_tab a').click();
			} else if ( url.indexOf( "comment-page-" ) > 0 || url.indexOf( "cpage=" ) > 0 ) {
				$tabs.find('li.reviews_tab a').click();
			} else {
				$tabs.find('li:first a').click();
			}
		})
		.on( 'click', '.wc-tabs li a, ul.tabs li a', function() {
			var $tab          = $( this );
			var $tabs_wrapper = $tab.closest( '.wc-tabs-wrapper, .woocommerce-tabs' );
			var $tabs         = $tabs_wrapper.find( '.wc-tabs, ul.tabs' );

			$tabs.find('li').removeClass( 'active' );
			$tabs_wrapper.find('.wc-tab, .panel:not(.panel .panel)').hide();

			$tab.closest('li').addClass( 'active' );
			$tabs_wrapper.find( $tab.attr( 'href' ) ).show();

			return false;
		})
		.trigger('init');

	$( 'a.woocommerce-review-link' ).click( function() {
		$( '.reviews_tab a' ).click();
		return true;
	});

	// Star ratings for comments
	$( '#rating' ).hide().before( '<p class="stars"><span><a class="star-1" href="#">1</a><a class="star-2" href="#">2</a><a class="star-3" href="#">3</a><a class="star-4" href="#">4</a><a class="star-5" href="#">5</a></span></p>' );

	$( 'body' )
		.on( 'click', '#respond p.stars a', function() {
			var $star   = $( this ),
				$rating = $( this ).closest( '#respond' ).find( '#rating' );

			$rating.val( $star.text() );
			$star.siblings( 'a' ).removeClass( 'active' );
			$star.addClass( 'active' );

			return false;
		})
		.on( 'click', '#respond #submit', function() {
			var $rating = $( this ).closest( '#respond' ).find( '#rating' ),
				rating  = $rating.val();

			if ( $rating.size() > 0 && ! rating && wc_single_product_params.review_rating_required === 'yes' ) {
				alert( wc_single_product_params.i18n_required_rating_text );

				return false;
			}
		});
});