225 lines
6.9 KiB
PHP
225 lines
6.9 KiB
PHP
<?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 automattic/jetpack
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*/
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namespace Automattic\Jetpack\Extensions\Slideshow;
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use Automattic\Jetpack\Blocks;
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use Jetpack_Gutenberg;
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/**
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* Registers the block for use in Gutenberg
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* This is done via an action so that we can disable
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* registration if we need to.
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*/
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function register_block() {
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Blocks::jetpack_register_block(
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__DIR__,
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array( 'render_callback' => __NAMESPACE__ . '\load_assets' )
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);
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}
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add_action( 'init', __NAMESPACE__ . '\register_block' );
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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 load_assets( $attr, $content ) {
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Jetpack_Gutenberg::load_assets_as_required( __DIR__ );
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if ( Blocks::is_amp_request() ) {
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return 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 render_amp( $attr ) {
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if ( empty( $attr['ids'] ) ) {
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return '';
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}
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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 = $attr['ids'];
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$autoplay = empty( $attr['autoplay'] ) ? false : true;
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$extras = array(
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'wp-amp-block',
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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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$classes = Blocks::classes( Blocks::get_block_feature( __DIR__ ), $attr, $extras );
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return sprintf(
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'<div class="%1$s" id="wp-block-jetpack-slideshow__%2$d"><div class="wp-block-jetpack-slideshow_container swiper-container">%3$s%4$s%5$s</div></div>',
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esc_attr( $classes ),
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absint( $wp_block_jetpack_slideshow_id ),
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amp_carousel( $attr, $wp_block_jetpack_slideshow_id ),
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$autoplay ? autoplay_ui( $wp_block_jetpack_slideshow_id ) : '',
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render_paginator( $ids, $wp_block_jetpack_slideshow_id )
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);
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}
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/**
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* Generate amp-carousel markup
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*
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* @param array $attr Array of block attributes.
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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 amp-carousel markup.
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*/
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function amp_carousel( $attr, $block_ordinal ) {
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$ids = empty( $attr['ids'] ) ? array() : $attr['ids'];
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$first_image = wp_get_attachment_metadata( $ids[0] );
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$delay = empty( $attr['delay'] ) ? 3 : absint( $attr['delay'] );
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$autoplay = empty( $attr['autoplay'] ) ? false : $attr['autoplay'];
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$width = empty( $first_image['width'] ) ? 800 : $first_image['width'];
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$height = empty( $first_image['height'] ) ? 600 : $first_image['height'];
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return sprintf(
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'<amp-carousel width="%1$d" height="%2$d" layout="responsive" type="slides" data-next-button-aria-label="%3$s" data-prev-button-aria-label="%4$s" controls loop %5$s id="wp-block-jetpack-slideshow__amp-carousel__%6$s" on="slideChange:wp-block-jetpack-slideshow__amp-pagination__%6$s.toggle(index=event.index, value=true)">%7$s</amp-carousel>',
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esc_attr( $width ),
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esc_attr( $height ),
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esc_attr__( 'Next Slide', 'jetpack' ),
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esc_attr__( 'Previous Slide', 'jetpack' ),
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$autoplay ? 'autoplay delay=' . esc_attr( $delay * 1000 ) : '',
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absint( $block_ordinal ),
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implode( '', slides( $ids, $width, $height ) )
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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 slides( $ids = array(), $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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array( $width, $height ),
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false,
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array(
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'class' => 'wp-block-jetpack-slideshow_image',
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'object-fit' => 'contain',
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)
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);
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return sprintf(
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'<div class="wp-block-jetpack-slideshow_slide"><figure>%s%s</figure></div>',
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$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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* Render blocks paginator section
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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 render_paginator( $ids = array(), $block_ordinal = 0 ) {
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$total = count( $ids );
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if ( $total < 6 ) {
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return bullets( $ids, $block_ordinal );
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}
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return sprintf(
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'<div class="swiper-pagination-simple">%s / %s</div>',
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absint( $block_ordinal ),
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absint( $total )
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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 bullets( $ids = array(), $block_ordinal = 0 ) {
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$buttons = array_map(
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function ( $index ) {
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$aria_label = sprintf(
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/* translators: %d: Slide number. */
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__( 'Go to slide %d', 'jetpack' ),
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absint( $index + 1 )
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);
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return sprintf(
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'<button option="%d" class="swiper-pagination-bullet" tabindex="0" role="button" aria-label="%s" %s></button>',
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absint( $index ),
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esc_attr( $aria_label ),
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0 === $index ? 'selected' : ''
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);
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},
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array_keys( $ids )
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);
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return sprintf(
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'<amp-selector id="wp-block-jetpack-slideshow__amp-pagination__%1$d" class="wp-block-jetpack-slideshow_pagination swiper-pagination swiper-pagination-custom amp-pagination" on="select:wp-block-jetpack-slideshow__amp-carousel__%1$d.goToSlide(index=event.targetOption)" layout="container">%2$s</amp-selector>',
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absint( $block_ordinal ),
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implode( '', $buttons )
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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 autoplay_ui( $block_ordinal = 0 ) {
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$block_id = sprintf(
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'wp-block-jetpack-slideshow__%d',
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absint( $block_ordinal )
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);
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$amp_carousel_id = sprintf(
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'wp-block-jetpack-slideshow__amp-carousel__%d',
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absint( $block_ordinal )
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);
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$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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