Function override of flatsome_wc_get_gallery_image_html

functions.php

<?php
/**
 * Function override for Flatsome theme
 * - disables main image link on product page
 * 
 * @param integer $attachment_id 
 * @param bool $main_image 
 * @param string $size 
 * @return string 
 */
function flatsome_wc_get_gallery_image_html( $attachment_id, $main_image = false, $size = 'woocommerce_single' ) {
    $gallery_thumbnail = wc_get_image_size( 'gallery_thumbnail' );
    $thumbnail_size    = apply_filters( 'woocommerce_gallery_thumbnail_size', array( $gallery_thumbnail['width'], $gallery_thumbnail['height'] ) );
    $image_size        = apply_filters( 'woocommerce_gallery_image_size', $size );
    $full_size         = apply_filters( 'woocommerce_gallery_full_size', apply_filters( 'woocommerce_product_thumbnails_large_size', 'full' ) );
    $thumbnail_src     = wp_get_attachment_image_src( $attachment_id, $thumbnail_size );
    $full_src          = wp_get_attachment_image_src( $attachment_id, $full_size );
    $image             = wp_get_attachment_image( $attachment_id, $image_size, false, array(
      'title'                   => get_post_field( 'post_title', $attachment_id ),
      'data-caption'            => get_post_field( 'post_excerpt', $attachment_id ),
      'data-src'                => $full_src[0],
      'data-large_image'        => $full_src[0],
      'data-large_image_width'  => $full_src[1],
      'data-large_image_height' => $full_src[2],
      'class'                   => $main_image ? 'wp-post-image skip-lazy' : 'skip-lazy', // skip-lazy, blacklist for Jetpack's lazy load.
    ) );

    $image_wrapper_class = $main_image ? 'slide first' : 'slide';
    $image_html = $main_image ? $image : '<a href="' . esc_url( $full_src[0] ) . '">' . $image . '</a>';
    return '<div data-thumb="' . esc_url( $thumbnail_src[0] ) . '" class="woocommerce-product-gallery__image '.$image_wrapper_class.'">' . $image_html . '</div>';
}