function create_shortcode_product($args, $content) {
    $product_home = new WP_Query(array(
            'post_type' => 'product',
            'showposts' => $args['showposts'],
            'order' => 'DESC',
            'orderby' => 'random',
            'tax_query' => array(
                              array(
                                'taxonomy' => 'product_cat',
                                'field'    => 'term_id',
                                'terms'    => $args['id'],
                              ),
                            ),
    ));

    ob_start(); ?>
    <div>
        <div class="tab_product_main">
            <!-- here is get parent category-->

        </div>
        <div class="tab_product">
        <?php $term_id = $args['id'];?>
            <?php $wcatTerms = get_terms('product_cat', array('hide_empty' => 0, 'orderby' => 'ASC', 'parent' =>$term_id ));
                foreach($wcatTerms as $wcatTerm) :
                $wthumbnail_id = get_woocommerce_term_meta( $wcatTerm->term_id, 'thumbnail_id', true );
            ?>
            <a href="<?php echo get_term_link( $wcatTerm->slug, $wcatTerm->taxonomy ); ?>"><?php echo $wcatTerm->name; ?></a>
            <?php endforeach; ?>
        </div>
    </div>
    <div class="box_ct box_ct_home">
        <div class="ads ads_left_cate fl">
            <div id="img-ads">
                <?php $idcat = $args['id'];
                      $thumbnail_id = get_woocommerce_term_meta( $idcat, 'thumbnail_id', true );
                      $image = wp_get_attachment_url( $thumbnail_id );
                ?>
                <img src="<?php echo $image; ?>" alt="">
            </div>
        </div>

        <div class="product_row fr flexslider">
            <div class="flex-viewport">
                <ul class="slides">
                    <?php if ( $product_home->have_posts() ) :
                                    while ( $product_home->have_posts() ) :$product_home->the_post(); global $product;?>
                        <li class="item_P">
                            <div class="n-product">
                                <div class="boxgrid">
                                    <a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>">
                                        <?php echo get_the_post_thumbnail( get_the_id(), 'full', array( 'class' =>'thumnail') ); ?>
                                    </a>
                                </div>
                                <h3 class="product_name"><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h3>
                                <?php echo number_format($product->get_regular_price(), 0, ',','.');?>
                            </div>
                        </li>
                    <?php endwhile;endif; wp_reset_postdata();?>
                </ul>
            </div>
        </div>
    </div>
    <?php $list_product = ob_get_contents();

    ob_end_clean();

    return $list_product;
}

add_shortcode('product', 'create_shortcode_product');

add_filter('widget_text', 'do_shortcode');