';
// Add caption if available (extract_image_from_html looks for figcaption)
// Preserve HTML in captions - the gallery renderer will sanitize it
if ( ! empty( $image['caption'] ) ) {
$img_html .= sprintf(
'%s',
wp_kses_post( $image['caption'] )
);
}
// Create inner block structure that the gallery renderer expects
// The renderer only uses innerHTML, not attrs
$inner_blocks[] = array(
'blockName' => 'core/image',
'innerHTML' => $img_html,
);
}
// Build block content HTML for gallery caption extraction (if needed)
// The renderer uses $block_content parameter to extract gallery-level captions
$block_content_html = '';
// Create a mock parsed block that WooCommerce's gallery renderer can handle
// The renderer uses columns from attrs (defaults to 3, but 2 works better for email)
$mock_parsed_block = array(
'innerBlocks' => $inner_blocks,
'attrs' => array(
'columns' => 2,
),
);
// Preserve email_attrs if present (used for width calculation)
if ( ! empty( $parsed_block['email_attrs'] ) ) {
$mock_parsed_block['email_attrs'] = $parsed_block['email_attrs'];
}
// Use WooCommerce's core gallery renderer
$woo_gallery_renderer = new \Automattic\WooCommerce\EmailEditor\Integrations\Core\Renderer\Blocks\Gallery();
return $woo_gallery_renderer->render( $block_content_html, $mock_parsed_block, $rendering_context );
}
/**
* Render slideshow block for AMP
*
* @param array $attr Array containing the slideshow block attributes.
*
* @return string
*/
function render_amp( $attr ) {
if ( empty( $attr['ids'] ) ) {
return '';
}
static $wp_block_jetpack_slideshow_id = 0;
++$wp_block_jetpack_slideshow_id;
$ids = $attr['ids'];
$autoplay = ! empty( $attr['autoplay'] );
$extras = array(
'wp-amp-block',
$autoplay ? 'wp-block-jetpack-slideshow__autoplay' : null,
$autoplay ? 'wp-block-jetpack-slideshow__autoplay-playing' : null,
);
$classes = Blocks::classes( Blocks::get_block_feature( __DIR__ ), $attr, $extras );
return sprintf(
'',
esc_attr( $classes ),
absint( $wp_block_jetpack_slideshow_id ),
amp_carousel( $attr, $wp_block_jetpack_slideshow_id ),
$autoplay ? autoplay_ui( $wp_block_jetpack_slideshow_id ) : '',
render_paginator( $ids, $wp_block_jetpack_slideshow_id )
);
}
/**
* Generate amp-carousel markup
*
* @param array $attr Array of block attributes.
* @param int $block_ordinal The ordinal number of the block, used in unique ID.
*
* @return string amp-carousel markup.
*/
function amp_carousel( $attr, $block_ordinal ) {
$ids = empty( $attr['ids'] ) ? array() : $attr['ids'];
$first_image = wp_get_attachment_metadata( $ids[0] );
$delay = empty( $attr['delay'] ) ? 3 : absint( $attr['delay'] );
$autoplay = empty( $attr['autoplay'] ) ? false : $attr['autoplay'];
$width = empty( $first_image['width'] ) ? 800 : $first_image['width'];
$height = empty( $first_image['height'] ) ? 600 : $first_image['height'];
return sprintf(
'%7$s',
esc_attr( $width ),
esc_attr( $height ),
esc_attr__( 'Next Slide', 'jetpack' ),
esc_attr__( 'Previous Slide', 'jetpack' ),
$autoplay ? 'autoplay delay=' . esc_attr( $delay * 1000 ) : '',
absint( $block_ordinal ),
implode( '', slides( $ids, $width, $height ) )
);
}
/**
* Generate array of slides markup
*
* @param array $ids Array of image ids.
* @param int $width Width of the container.
* @param int $height Height of the container.
*
* @return array Array of slides markup.
*/
function slides( $ids = array(), $width = 400, $height = 300 ) {
return array_map(
function ( $id ) use ( $width, $height ) {
$caption = wp_get_attachment_caption( $id );
$figcaption = $caption ? sprintf(
'%s',
wp_kses_post( $caption )
) : '';
$image = wp_get_attachment_image(
$id,
array( $width, $height ),
false,
array(
'class' => 'wp-block-jetpack-slideshow_image',
'object-fit' => 'contain',
)
);
return sprintf(
'%s%s
',
$image,
$figcaption
);
},
$ids
);
}
/**
* Render blocks paginator section
*
* @param array $ids Array of image ids.
* @param int $block_ordinal The ordinal number of the block, used in unique ID.
*
* @return string Bullets or count markup.
*/
function render_paginator( $ids = array(), $block_ordinal = 0 ) {
$total = count( $ids );
if ( $total < 6 ) {
return bullets( $ids, $block_ordinal );
}
return sprintf(
'',
absint( $block_ordinal ),
absint( $total )
);
}
/**
* Generate array of bullets markup
*
* @param array $ids Array of image ids.
* @param int $block_ordinal The ordinal number of the block, used in unique ID.
*
* @return string Bullets markup.
*/
function bullets( $ids = array(), $block_ordinal = 0 ) {
$buttons = array_map(
function ( $index ) {
$aria_label = sprintf(
/* translators: %d: Slide number. */
__( 'Go to slide %d', 'jetpack' ),
absint( $index + 1 )
);
return sprintf(
'',
absint( $index ),
esc_attr( $aria_label ),
0 === $index ? 'selected' : ''
);
},
array_keys( $ids )
);
return sprintf(
'',
absint( $block_ordinal ),
implode( '', $buttons )
);
}
/**
* Generate autoplay play/pause UI.
*
* @param int $block_ordinal The ordinal number of the block, used in unique ID.
*
* @return string Autoplay UI markup.
*/
function autoplay_ui( $block_ordinal = 0 ) {
$block_id = sprintf(
'wp-block-jetpack-slideshow__%d',
absint( $block_ordinal )
);
$amp_carousel_id = sprintf(
'wp-block-jetpack-slideshow__amp-carousel__%d',
absint( $block_ordinal )
);
$autoplay_pause = sprintf(
'',
esc_attr__( 'Pause Slideshow', 'jetpack' ),
esc_attr( $amp_carousel_id ),
esc_attr( $block_id )
);
$autoplay_play = sprintf(
'',
esc_attr__( 'Play Slideshow', 'jetpack' ),
esc_attr( $amp_carousel_id ),
esc_attr( $block_id )
);
return $autoplay_pause . $autoplay_play;
}
/**
* Enqueue Swiper library assets for dynamic loading.
*
* @return void
*/
function enqueue_swiper_library() {
$swiper_js_path = Jetpack_Gutenberg::get_blocks_directory() . 'swiper.js';
$swiper_css_path = Jetpack_Gutenberg::get_blocks_directory() . 'swiper' . ( is_rtl() ? '.rtl' : '' ) . '.css';
if ( Jetpack_Gutenberg::block_has_asset( $swiper_js_path ) ) {
wp_enqueue_script(
'jetpack-swiper-library',
plugins_url( $swiper_js_path, JETPACK__PLUGIN_FILE ),
array(),
JETPACK__VERSION,
true
);
}
if ( Jetpack_Gutenberg::block_has_asset( $swiper_css_path ) ) {
wp_enqueue_style(
'jetpack-swiper-library',
plugins_url( $swiper_css_path, JETPACK__PLUGIN_FILE ),
array(),
JETPACK__VERSION
);
}
}
/**
* Process slideshow images for email rendering.
*
* @param array $attr Block attributes containing image data.
* @return array Processed image data for email rendering.
*/
function process_slideshow_images_for_email( $attr ) {
$images = array();
// Get images from IDs (primary data source)
if ( ! empty( $attr['ids'] ) && is_array( $attr['ids'] ) ) {
foreach ( $attr['ids'] as $index => $id ) {
// Validate ID is a positive integer
$id = absint( $id );
if ( ! $id ) {
continue;
}
$image_url = wp_get_attachment_image_url( $id, 'medium' );
// Sanitize alt text from post meta
$alt_text = get_post_meta( $id, '_wp_attachment_image_alt', true );
$alt_text = sanitize_text_field( $alt_text );
// Get caption from attachment post (stored in post_excerpt)
$attachment_post = get_post( $id );
$caption = '';
// First try to get caption from images array if available (with validation)
// Preserve HTML in captions - the gallery renderer will sanitize it
if ( ! empty( $attr['images'] ) && is_array( $attr['images'] ) && isset( $attr['images'][ $index ]['caption'] ) ) {
$caption = wp_kses_post( $attr['images'][ $index ]['caption'] );
}
// If no caption in images array, get it from attachment post
if ( empty( $caption ) && $attachment_post && ! empty( $attachment_post->post_excerpt ) ) {
$caption = wp_kses_post( $attachment_post->post_excerpt );
}
if ( $image_url ) {
$images[] = array(
'url' => $image_url,
'alt' => $alt_text,
'caption' => $caption,
'id' => $id,
);
}
}
} elseif ( ! empty( $attr['images'] ) && is_array( $attr['images'] ) ) {
// Fall back to images array if IDs aren't available (for edge cases/testing)
foreach ( $attr['images'] as $image_data ) {
if ( ! empty( $image_data['url'] ) ) {
// Sanitize URL - esc_url_raw returns empty string for invalid URLs
$url = esc_url_raw( $image_data['url'] );
if ( ! $url ) {
continue;
}
// Sanitize alt text
$alt_text = ! empty( $image_data['alt'] ) ? sanitize_text_field( $image_data['alt'] ) : '';
// Preserve HTML in captions - the gallery renderer will sanitize it
$caption = ! empty( $image_data['caption'] ) ? wp_kses_post( $image_data['caption'] ) : '';
// Validate ID if present
$id = ! empty( $image_data['id'] ) ? absint( $image_data['id'] ) : 0;
$images[] = array(
'url' => $url,
'alt' => $alt_text,
'caption' => $caption,
'id' => $id,
);
}
}
}
return $images;
}