Javascriptに詳しくなくてもできる！WordPressブロックエディタ(Gutenberg)カスタム -ACF編-

/テーマ名 
function.php 
  /template-parts
    /blocks
      /testimonial
        testimonial.php
        testimonial.css
        testimonial.js

function register_acf_block_types() {
    // register a testimonial block.
    acf_register_block_type(array(
        'name'              => 'testimonial',
        'title'             => __('Testimonial'),
        'description'       => __('A custom testimonial block.'),
        'render_template'   => 'template-parts/blocks/testimonial/testimonial.php',
        'category'          => 'formatting',
        'icon'              => 'admin-comments',
        'keywords'          => array( 'testimonial', 'quote' ),
		'enqueue_assets' 	=> function(){
			wp_enqueue_style( 'block-testimonial', get_template_directory_uri() . '/template-parts/blocks/testimonial/testimonial.css', array(), '1.0.0' );
			wp_enqueue_script( 'block-testimonial', get_template_directory_uri() . '/template-parts/blocks/testimonial/testimonial.js', array(), '1.0.0', true );
		  },
    ));
}
// Check if function exists and hook into setup.
if( function_exists('acf_register_block_type') ) {
    add_action('acf/init', 'register_acf_block_types');
}

<?php

/**
 * Testimonial Block Template.
 *
 * @param   array $block The block settings and attributes.
 * @param   string $content The block inner HTML (empty).
 * @param   bool $is_preview True during AJAX preview.
 * @param   (int|string) $post_id The post ID this block is saved to.
 */

// Create id attribute allowing for custom "anchor" value.
$id = 'testimonial-' . $block['id'];
if( !empty($block['anchor']) ) {
    $id = $block['anchor'];
}

// Create class attribute allowing for custom "className" and "align" values.
$className = 'testimonial';
if( !empty($block['className']) ) {
    $className .= ' ' . $block['className'];
}
if( !empty($block['align']) ) {
    $className .= ' align' . $block['align'];
}

// Load values and assing defaults.
$text = get_field('testimonial') ?: 'Your testimonial here...';
$author = get_field('author') ?: 'Author name';
$role = get_field('role') ?: 'Role';
$image = get_field('image') ?: 295;
$background_color = get_field('background_color');
$text_color = get_field('text_color');

?>
<div id="<?php echo esc_attr($id); ?>" class="<?php echo esc_attr($className); ?>">
    <blockquote class="testimonial-blockquote">
        <span class="testimonial-text"><?php echo $text; ?></span>
        <span class="testimonial-author"><?php echo $author; ?></span>
        <span class="testimonial-role"><?php echo $role; ?></span>
    </blockquote>
    <div class="testimonial-image">
        <?php echo wp_get_attachment_image( $image, 'large' ); ?>
    </div>
    <style type="text/css">
        #<?php echo $id; ?> {
            background: <?php echo $background_color; ?>;
            color: <?php echo $text_color; ?>;
        }
    </style>
</div>  

(function ($) {

  /**
   * initializeBlock
   *
   * Adds custom JavaScript to the block HTML.
   *
   * @date    15/4/19
   * @since   1.0.0
   *
   * @param   object $block The block jQuery element.
   * @param   object attributes The block attributes (only available when editing).
   * @return  void
   */
  var initializeBlock = function ($block) {
    $block.find('img').doSomething();
  }

  // Initialize each block on page load (front end).
  $(document).ready(function () {
    $('.testimonial').each(function () {
      initializeBlock($(this));
    });
  });

  // Initialize dynamic block preview (editor).
  if (window.acf) {
    window.acf.addAction('render_block_preview/type=testimonial', initializeBlock);
  }

})(jQuery);

.testimonial {
    background: #00e4ba;
    color: #fff;
    display: flex;
    flex-direction: row;
    align-items: center;
}
...