vc_integration_with_shortcode.php

<?php 
/*
Plugin Name: Stock Toolkit
*/


add_action( 'init', 'stock_theme_custom_post' );
function stock_theme_custom_post() {
    register_post_type( 'testimonial',
        array(
            'labels' => array(
								'name'          => __( 'Testimonials' ),
								'singular_name' => __( 'Testimonial' )
            ),
						'supports' => array('title', 'editor', 'thumbnail', 'page-attributes'),
						'public'   => false,
						'show_ui'  => true,

        )
    );
}


function post_list_shortcode($atts){
    extract( shortcode_atts( array(
				'count' => -1,
				'type'  => 'post',
				'color'  => '#aaddff',
				'icon'  => ''
    ), $atts) );
     
    $q = new WP_Query(
        array('posts_per_page' => $count, 'post_type' => $type)
        );
         
    $list = '<ul>';
    while($q->have_posts()) : $q->the_post();
        $idd = get_the_ID();
        $post_content = get_the_content();
        $list .= '<li><a style="color:'.$color.'" href="'.get_permalink().'">';
					if(!empty($icon)){
						$list .='<i class="'.$icon.'"></i> ';
					}
        $list .= ''.get_the_title().'</a></li>';        
    endwhile;
    $list.= '</ul>';
    wp_reset_query();
    return $list;
}
add_shortcode('post_list', 'post_list_shortcode');



function stock_vc_postlist_addon() {
   vc_map( array(
      "name" => __( "Post list", "my-text-domain" ),
      "base" => "post_list",
      "category" => __( "Stock", "my-text-domain"),
      "params" => array(
         array(
            "type" => "textfield",
            "heading" => __( "Post type", "my-text-domain" ),
            "param_name" => "type",
            "value" => __( "post", "my-text-domain" ),
            "description" => __( "Type your post type.", "my-text-domain" )
         ),
         array(
            "type" => "textfield",
            "heading" => __( "Post count", "my-text-domain" ),
            "param_name" => "count",
            "value" => __( "-1", "my-text-domain" ),
            "description" => __( "Type how many items you want to show. Number only. Select -1 to show all.", "my-text-domain" )
         ),
         array(
            "type" => "colorpicker",
            "heading" => __( "Link color", "my-text-domain" ),
            "param_name" => "color",
            "value" => __( "#aaddff", "my-text-domain" ),
            "description" => __( "Pick your link color.", "my-text-domain" )
         ),
         array(
            "type" => "iconpicker",
            "heading" => __( "Icon", "my-text-domain" ),
            "param_name" => "icon",
            "description" => __( "Pick your icon.", "my-text-domain" )
         )
      )
   ) );
}
add_action( 'vc_before_init', 'stock_vc_postlist_addon' );

?>