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<?php |
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/** |
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* Slideshow Block. |
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* |
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* @since 7.1.0 |
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* |
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* @package Jetpack |
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*/ |
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jetpack_register_block( |
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'jetpack/slideshow', |
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array( |
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'render_callback' => 'jetpack_slideshow_block_load_assets', |
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) |
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); |
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/** |
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* Slideshow block registration/dependency declaration. |
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* |
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* @param array $attr Array containing the slideshow block attributes. |
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* @param string $content String containing the slideshow block content. |
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* |
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* @return string |
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*/ |
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function jetpack_slideshow_block_load_assets( $attr, $content ) { |
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Jetpack_Gutenberg::load_assets_as_required( 'slideshow' ); |
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if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) { |
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return jetpack_slideshow_block_render_amp( $attr ); |
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} |
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return $content; |
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} |
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/** |
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* Render slideshow block for AMP |
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* |
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* @param array $attr Array containing the slideshow block attributes. |
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* |
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* @return string |
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*/ |
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function jetpack_slideshow_block_render_amp( $attr ) { |
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static $wp_block_jetpack_slideshow_id = 0; |
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$wp_block_jetpack_slideshow_id++; |
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$ids = empty( $attr['ids'] ) ? array() : $attr['ids']; |
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$autoplay = empty( $attr['autoplay'] ) ? false : $attr['autoplay']; |
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$delay = empty( $attr['delay'] ) ? 3 : intval( $attr['delay'] ); |
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$align = isset( $attr['align'] ) ? $attr['align'] : 'center'; |
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$classes = array( |
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'wp-block-jetpack-slideshow', |
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'wp-amp-block', |
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'align' . $align, |
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$autoplay ? 'wp-block-jetpack-slideshow__autoplay' : null, |
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$autoplay ? 'wp-block-jetpack-slideshow__autoplay-playing' : null, |
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); |
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$first_image = wp_get_attachment_metadata( $ids[0] ); |
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$amp_carousel = sprintf( |
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'<amp-carousel width="%s" height="%s" layout="responsive" type="slides" data-next-button-aria-label="%s" data-prev-button-aria-label="%s" controls loop %s id="wp-block-jetpack-slideshow__amp_carousel_%s">%s</amp-carousel>', |
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esc_attr( $first_image['width'] ), |
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esc_attr( $first_image['height'] ), |
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esc_attr__( 'Next Slide', 'jetpack' ), |
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esc_attr__( 'Previous Slide', 'jetpack' ), |
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$autoplay ? 'autoplay delay=' . esc_attr( $delay * 1000 ) : '', |
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esc_attr( $wp_block_jetpack_slideshow_id ), |
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implode( '', jetpack_slideshow_block_slides( $ids, $first_image['width'], $first_image['height'] ) ) |
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); |
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return sprintf( |
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'<div class="%s" id="wp-block-jetpack-slideshow__%s"><div class="wp-block-jetpack-slideshow_container swiper-container">%s%s<div class="wp-block-jetpack-slideshow_pagination swiper-pagination swiper-pagination-bullets amp-pagination">%s</div></div></div>', |
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esc_attr( implode( $classes, ' ' ) ), |
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esc_attr( $wp_block_jetpack_slideshow_id ), |
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$amp_carousel, |
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$autoplay ? jetpack_slideshow_block_autoplay_ui( $wp_block_jetpack_slideshow_id ) : '', |
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implode( '', jetpack_slideshow_block_bullets( $ids, $wp_block_jetpack_slideshow_id ) ) |
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); |
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} |
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/** |
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* Generate array of slides markup |
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* |
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* @param array $ids Array of image ids. |
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* @param int $width Width of the container. |
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* @param int $height Height of the container. |
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* |
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* @return array Array of slides markup. |
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*/ |
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function jetpack_slideshow_block_slides( $ids = [], $width = 400, $height = 300 ) { |
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return array_map( |
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function( $id ) use ( $width, $height ) { |
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$caption = wp_get_attachment_caption( $id ); |
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$figcaption = $caption ? sprintf( |
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'<figcaption class="wp-block-jetpack-slideshow_caption gallery-caption">%s</figcaption>', |
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wp_kses_post( $caption ) |
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) : ''; |
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$image = wp_get_attachment_image( |
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$id, |
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[ $width, $height ], |
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false, |
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[ |
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'class' => 'wp-block-jetpack-slideshow_image', |
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'object-fit' => 'contain', |
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] |
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); |
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return sprintf( |
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'<div class="wp-block-jetpack-slideshow_slide"><figure>%s%s</figure></div>', |
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$image, |
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$figcaption |
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); |
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}, |
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$ids |
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); |
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} |
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/** |
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* Generate array of bullets markup |
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* |
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* @param array $ids Array of image ids. |
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* @param int $block_ordinal The ordinal number of the block, used in unique ID. |
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* |
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* @return array Array of bullets markup. |
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*/ |
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function jetpack_slideshow_block_bullets( $ids = [], $block_ordinal = 0 ) { |
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$amp_carousel_id = sprintf( |
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'wp-block-jetpack-slideshow__amp_carousel_%s', |
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intval( $block_ordinal ) |
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); |
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return array_map( |
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function( $index ) use ( $amp_carousel_id ) { |
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return sprintf( |
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'<button class="swiper-pagination-bullet" tabindex="0" role="button" aria-label="Go to slide %s" on="tap:%s.goToSlide(index=%s)"></button>', |
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( $index + 1 ), |
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esc_attr( $amp_carousel_id ), |
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$index |
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); |
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}, |
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array_keys( $ids ) |
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); |
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} |
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/** |
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* Generate autoplay play/pause UI. |
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* |
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* @param int $block_ordinal The ordinal number of the block, used in unique ID. |
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* |
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* @return string Autoplay UI markup. |
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*/ |
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function jetpack_slideshow_block_autoplay_ui( $block_ordinal = 0 ) { |
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$block_id = sprintf( |
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'wp-block-jetpack-slideshow__%s', |
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intval( $block_ordinal ) |
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); |
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$amp_carousel_id = sprintf( |
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'wp-block-jetpack-slideshow__amp_carousel_%s', |
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intval( $block_ordinal ) |
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); |
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$autoplay_pause = sprintf( |
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'<a aria-label="%s" class="wp-block-jetpack-slideshow_button-pause" role="button" on="tap:%s.toggleAutoplay(toggleOn=false),%s.toggleClass(class=wp-block-jetpack-slideshow__autoplay-playing,force=false)"></a>', |
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esc_attr__( 'Pause Slideshow', 'jetpack' ), |
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esc_attr( $amp_carousel_id ), |
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esc_attr( $block_id ) |
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); |
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$autoplay_play = sprintf( |
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'<a aria-label="%s" class="wp-block-jetpack-slideshow_button-play" role="button" on="tap:%s.toggleAutoplay(toggleOn=true),%s.toggleClass(class=wp-block-jetpack-slideshow__autoplay-playing,force=true)"></a>', |
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esc_attr__( 'Play Slideshow', 'jetpack' ), |
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esc_attr( $amp_carousel_id ), |
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esc_attr( $block_id ) |
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); |
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return $autoplay_pause . $autoplay_play; |
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} |
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Automattic /
jetpack
