/* globals jQuery, sowb */
var sowb = window.sowb || {};
jQuery( function ( $ ) {
sowb.setupCarousel = function () {
$.fn.setSlideTo = function( slide ) {
$item = $( this );
// We need to reset the Slick slide settings to avoid https://github.com/kenwheeler/slick/issues/1006.
var slidesToShow = $item.slick( 'slickGetOption', 'slidesToShow' );
var slidesToScroll = $item.slick( 'slickGetOption', 'slidesToScroll' );
$item.slick( 'slickSetOption', 'slidesToShow', 1 );
$item.slick( 'slickSetOption', 'slidesToScroll', 1 );
$item.slick( 'slickGoTo', slide );
$item.slick( 'slickSetOption', 'slidesToShow', slidesToShow );
$item.slick( 'slickSetOption', 'slidesToScroll', slidesToScroll );
};
$( '.sow-carousel-wrapper' ).on( 'init', function( e, slick ) {
$( this ).css( 'opacity', 1 );
} );
// The carousel widget
$( '.sow-carousel-wrapper' ).each( function () {
var $$ = $( this ),
$items = $$.find( '.sow-carousel-items' ),
responsiveSettings = $$.data( 'responsive' ),
carouselSettings = $$.data( 'carousel_settings' );
$items.not( '.slick-initialized' ).slick( {
arrows: false,
dots: carouselSettings.dots,
appendDots: carouselSettings.appendDots ? $$.find( '.sow-carousel-nav' ) : $$,
rows: 0,
rtl: $$.data( 'dir' ) == 'rtl',
touchThreshold: 20,
infinite:
carouselSettings.loop &&
(
! $$.data( 'ajax-url' ) ||
(
$$.data( 'ajax-url' ) &&
carouselSettings.autoplay_continuous_scroll &&
carouselSettings.autoplay
)
),
variableWidth: $$.data( 'variable_width' ),
accessibility: false,
adaptiveHeight: carouselSettings.adaptive_height,
cssEase: carouselSettings.animation,
speed: carouselSettings.animation_speed,
slidesToScroll: responsiveSettings.desktop_slides_to_scroll,
slidesToShow: typeof responsiveSettings.desktop_slides_to_show == 'undefined'
? responsiveSettings.desktop_slides_to_scroll
: responsiveSettings.desktop_slides_to_show,
responsive: [
{
breakpoint: responsiveSettings.tablet_portrait_breakpoint,
settings: {
slidesToScroll: responsiveSettings.tablet_portrait_slides_to_scroll,
slidesToShow: typeof responsiveSettings.tablet_portrait_slides_to_show == 'undefined'
? responsiveSettings.tablet_portrait_slides_to_scroll
: responsiveSettings.tablet_portrait_slides_to_show,
}
},
{
breakpoint: responsiveSettings.mobile_breakpoint,
settings: {
slidesToScroll: responsiveSettings.mobile_slides_to_scroll,
slidesToShow: typeof responsiveSettings.mobile_slides_to_show == 'undefined'
? responsiveSettings.mobile_slides_to_scroll
: responsiveSettings.mobile_slides_to_show,
}
},
],
} );
// Clear the pre-fill width if one is set.
if ( carouselSettings.item_overflow ) {
$items.css( 'width', '' );
$items.css( 'opacity', '' );
}
// Trigger navigation click on swipe
$items.on( 'swipe', function( e, slick, direction ) {
$$.parent().parent().find( '.sow-carousel-' + ( direction == 'left' ? 'next' : 'prev' ) ).trigger( 'touchend' );
} );
// Set up Autoplay. We use a custom autoplay rather than the Slick
// autoplay to account for the (sometimes) non-standard nature of our
// navigation that Slick has trouble accounting for.
if ( carouselSettings.autoplay ) {
var interrupted = false;
var autoplayNav = $$.parent().parent().find( '.sow-carousel-' + ( $$.data( 'dir' ) == 'ltr' ? 'next' : 'prev' ) );
// Check if this is a Block Editor preview, and if it is, don't autoplay.
if ( ! $( 'body' ).hasClass( 'block-editor-page' ) ) {
setInterval( function() {
if ( ! interrupted ) {
autoplayNav.trigger( 'click' );
}
}, carouselSettings.autoplaySpeed );
if ( carouselSettings.pauseOnHover ) {
$items.on('mouseenter.slick', function() {
interrupted = true;
} );
$items.on( 'mouseleave.slick', function() {
interrupted = false;
} );
}
}
}
// click is used rather than Slick's beforeChange or afterChange
// due to the inability to stop a slide from changing from those events
$$.parent().parent().find( '.sow-carousel-previous, .sow-carousel-next' ).on( 'click touchend', function( e, refocus ) {
e.preventDefault();
var $items = $$.find( '.sow-carousel-items' ),
numItems = $items.find( '.sow-carousel-item' ).length,
complete = numItems >= $$.data( 'item_count' ),
numVisibleItems = Math.ceil( $items.outerWidth() / $items.find( '.sow-carousel-item' ).outerWidth( true ) ),
numVisibleItemsFloor = Math.floor( $items.outerWidth() / $items.find( '.sow-carousel-item' ).outerWidth( true ) ),
slidesToScroll = $items.slick( 'slickGetOption', 'slidesToScroll' ),
lastPosition = numItems - numVisibleItems,
loading = false;
// Post Carousel has a loading indicator so we need to pad the lastPosition.
if (
$$.data( 'widget' ) == 'post' &&
(
$$.data( 'carousel_settings' ).theme != 'undefined' &&
complete
)
) {
lastPosition++;
}
// Check if all items are displayed
if ( ! complete ) {
// For Ajax Carousels, check if we need to fetch the next batch of items.
if (
$items.slick( 'slickCurrentSlide' ) + numVisibleItems >= numItems - 1 ||
$items.slick( 'slickCurrentSlide' ) + slidesToScroll > lastPosition
) {
$( sowb ).trigger( 'carousel_load_new_items', [ $$, $items, refocus ] );
loading = true;
}
}
// A custom navigation is used due to a Slick limitation that prevents the slide from stopping
// the slide from changing and wanting to remain consistent with the previous carousel.
// https://github.com/kenwheeler/slick/pull/2104
//
// The Slick Infinite setting has a positioning bug that can result in the first item
// being hidden so we need to manually handle that
// https://github.com/kenwheeler/slick/issues/3567
if ( $( this ).hasClass( 'sow-carousel-next' ) && ! loading ) {
// Check if this is the last slide, and we need to loop
if (
complete &&
$items.slick( 'slickCurrentSlide' ) >= lastPosition
) {
if ( $$.data( 'carousel_settings' ).loop ) {
$items.slick( 'slickGoTo', 0 );
}
// If slidesToScroll is higher than the the number of visible items, go to the last item.
} else if ( $$.data( 'widget' ) == 'post' && $$.data( 'carousel_settings' ).theme == 'undefined' && slidesToScroll >= numVisibleItemsFloor ) {
// There's more slides than items, update Slick settings to allow for scrolling of partially visible items.
$items.slick( 'slickSetOption', 'slidesToShow', numVisibleItemsFloor );
$items.slick( 'slickSetOption', 'slidesToScroll', numVisibleItemsFloor );
$items.slick( 'slickNext' );
// Check if the number of slides to scroll exceeds lastPosition, go to the last slide, or
} else if ( $items.slick( 'slickCurrentSlide' ) + slidesToScroll > lastPosition ) {
$items.setSlideTo( lastPosition );
} else {
$items.slick( 'slickNext' );
}
} else if ( $( this ).hasClass( 'sow-carousel-previous' ) ) {
if ( $$.data( 'carousel_settings' ).loop && $items.slick( 'slickCurrentSlide' ) == 0 ) {
$items.slick( 'slickGoTo', lastPosition );
} else if ( $$.data( 'widget' ) == 'post' && $items.slick( 'slickCurrentSlide' ) <= slidesToScroll ) {
$items.slick( 'slickGoTo', 0 );
} else {
$items.slick( 'slickPrev' );
}
}
// Post Carousel update dot navigation active item.
if ( carouselSettings.dots && $$.data( 'widget' ) == 'post' ) {
$$.find( 'li.slick-active' ).removeClass( 'slick-active' );
$$.find( '.slick-dots li' ).eq( Math.ceil( $$.find( '.sow-carousel-items' ).slick( 'slickCurrentSlide' ) / slidesToScroll ) ).addClass( 'slick-active' );
}
} );
if ( carouselSettings.dots && ( $$.data( 'variable_width' ) || $$.data( 'carousel_settings' ).theme ) ) {
// Unbind base Slick Dot Navigation as we use a custom event to prevent blank spaces.
$$.find( '.slick-dots li' ).off( 'click.slick' );
var carouselDotNavigation = function() {
$items = $$.find( '.sow-carousel-items' );
var targetItem = $( this ).index(),
slidesToScroll = $items.slick( 'slickGetOption', 'slidesToScroll' ),
numItems = $items.find( '.sow-carousel-item' ).length,
numVisibleItems = Math.ceil( $items.outerWidth() / $items.find( '.sow-carousel-item' ).outerWidth( true ) ),
lastPosition = numItems - numVisibleItems;
// Check if navigating to the selected item would result in a blank space.
if ( targetItem + numVisibleItems >= numItems ) {
// Blank spacing would occur, let's go to the last possible item
// make it appear as though we navigated to the selected item.
$items.slick( 'slickGoTo', lastPosition );
$dots = $( this ).parent();
$dots.find( '.slick-active' ).removeClass( 'slick-active' );
$dots.children().eq( targetItem ).addClass( 'slick-active' );
} else {
if ( $$.data( 'widget' ) == 'post' ) {
// We need to account for an empty item.
targetItem = Math.ceil( $( this ).index() * slidesToScroll );
}
$items.slick( 'slickGoTo', targetItem );
}
// Is this a Post Carousel? If so, let's check if we need to load more posts.
if ( $$.data( 'widget' ) == 'post' ) {
var complete = numItems >= $$.data( 'item_count' );
// Check if all items are displayed
if ( ! complete ) {
if (
$items.slick( 'slickCurrentSlide' ) + numVisibleItems >= numItems - 1 ||
$items.slick( 'slickCurrentSlide' ) + slidesToScroll > lastPosition
) {
$( sowb ).trigger( 'carousel_load_new_items', [ $$, $items, false ] );
}
}
}
};
$$.find( '.slick-dots li' ).on( 'click touchend', carouselDotNavigation );
// Setup Slick Dot Navigation again when new posts are added.
$( sowb ).on( 'carousel_posts_added', function() {
$$.find( '.slick-dots li' ).on( 'click touchend', carouselDotNavigation );
} );
}
} );
$( sowb ).trigger( 'carousel_setup' );
// Keyboard Navigation of carousel navigation.
$( document ).on( 'keydown', '.sow-carousel-navigation a', function( e ) {
if ( e.keyCode != 13 && e.keyCode != 32 ) {
return;
}
e.preventDefault();
$( this ).trigger( 'click' );
} );
// Keyboard Navigation of carousel items.
$( document ).on( 'keyup', '.sow-carousel-item', function( e ) {
// Was enter pressed?
if ( e.keyCode == 13 ) {
$( this ).find( 'h3 a' )[0].click();
}
// Ensure left/right key was pressed
if ( e.keyCode != 37 && e.keyCode != 39 ) {
return;
}
var $wrapper = $( this ).parents( '.sow-carousel-wrapper' ),
$items = $wrapper.find( '.sow-carousel-items' ),
numItems = $items.find( '.sow-carousel-item' ).length,
itemIndex = $( this ).data( 'slick-index' ),
lastPosition = numItems - ( numItems === $wrapper.data( 'item_count' ) ? 0 : 1 );
if ( e.keyCode == 37 ) {
itemIndex--;
if ( itemIndex < 0 ) {
itemIndex = lastPosition;
}
} else if ( e.keyCode == 39 ) {
itemIndex++;
if ( itemIndex >= lastPosition ) {
if ( $wrapper.data( 'fetching' ) ) {
return; // Currently loading new items.
}
$wrapper.parent().find( '.sow-carousel-next' ).trigger( 'click', true );
}
}
$items.slick( 'slickGoTo', itemIndex, true );
$wrapper.find( '.sow-carousel-item' ).prop( 'tabindex', -1 );
$wrapper.find( '.sow-carousel-item[data-slick-index="' + itemIndex + '"]' )
.trigger( 'focus' )
.prop( 'tabindex', 0 );
} );
var carousel_resizer = function() {
$( '.sow-carousel-wrapper' ).each( function() {
var currentCarousel = $( this ),
$items = currentCarousel.find( '.sow-carousel-items.slick-initialized' );
// Change Slick Settings on iPad Pro while Landscape
var responsiveSettings = currentCarousel.data( 'responsive' );
if ( window.matchMedia( '(min-width: ' + responsiveSettings.tablet_portrait_breakpoint + 'px) and (max-width: ' + responsiveSettings.tablet_landscape_breakpoint + 'px) and (orientation: landscape)' ).matches ) {
$items.slick( 'slickSetOption', 'slidesToShow', responsiveSettings.tablet_landscape_slides_to_show );
$items.slick( 'slickSetOption', 'slidesToScroll', responsiveSettings.tablet_landscape_slides_to_scroll );
}
} );
$( '.sow-carousel-item:first-of-type' ).prop( 'tabindex', 0 );
};
carousel_resizer();
$( window ).on( 'resize load', carousel_resizer );
};
sowb.setupCarousel();
$( sowb ).on( 'setup_widgets', sowb.setupCarousel );
} );
window.sowb = sowb;