/**
  * Set up our control.
  *
  * @since  3.0.0
  * @access public
  * @param  object  $manager
  * @param  string  $id
  * @param  array   $args
  * @return void
  */
 public function __construct($manager, $id, $args = array())
 {
     // Array of allowed layouts. Pass via `$args['layouts']`.
     $allowed = !empty($args['layouts']) ? $args['layouts'] : array_keys(hybrid_get_layouts());
     // Loop through each of the layouts and add it to the choices array with proper key/value pairs.
     foreach (hybrid_get_layouts() as $layout) {
         if (in_array($layout->name, $allowed) && !('theme_layout' === $id && false === $layout->is_global_layout) && $layout->image) {
             $args['choices'][$layout->name] = array('label' => $layout->label, 'url' => sprintf($layout->image, get_template_directory_uri(), get_stylesheet_directory_uri()));
         }
     }
     // Let the parent class handle the rest.
     parent::__construct($manager, $id, $args);
 }
/**
 * Callback function for displaying the layout meta box.
 *
 * @since  3.0.0
 * @access public
 * @param  object  $object
 * @param  array   $box
 * @return void
 */
function hybrid_post_layout_meta_box($post, $box)
{
    // Get the current post's layout.
    $post_layout = hybrid_get_post_layout($post->ID);
    $post_layout = $post_layout ? $post_layout : 'default';
    wp_nonce_field(basename(__FILE__), 'hybrid-post-layout-nonce');
    ?>

	<?php 
    foreach (hybrid_get_layouts() as $layout) {
        ?>

		<?php 
        if (true === $layout->is_post_layout && $layout->image && !(!empty($layout->post_types) && !in_array($post->post_type, $layout->post_types))) {
            ?>

			<label class="has-img">
				<input type="radio" value="<?php 
            echo esc_attr($layout->name);
            ?>
" name="hybrid-post-layout" <?php 
            checked($post_layout, $layout->name);
            ?>
 />

				<span class="screen-reader-text"><?php 
            echo esc_html($layout->label);
            ?>
</span>

				<img src="<?php 
            echo esc_url(sprintf($layout->image, get_template_directory_uri(), get_stylesheet_directory_uri()));
            ?>
" alt="<?php 
            echo esc_attr($layout->label);
            ?>
" />
			</label>

		<?php 
        }
        ?>

	<?php 
    }
    ?>

	<script type="text/javascript">
	jQuery( document ).ready( function( $ ) {

		// Add the `.checked` class to whichever radio is checked.
		$( '#hybrid-post-layout input:checked' ).addClass( 'checked' );

		// When a radio is clicked.
		$( "#hybrid-post-layout input" ).click( function() {

			// If the radio has the `.checked` class, remove it and uncheck the radio.
			if ( $( this ).hasClass( 'checked' ) ) {

				$( "#hybrid-post-layout input" ).removeClass( 'checked' );
				$( this ).prop( 'checked', false );

			// If the radio is not checked, ad the `.checked` class and check it.
			} else {

				$( "#hybrid-post-layout input" ).removeClass( 'checked' );
				$( this ).addClass( 'checked' );
			}
		} );
	} );
	</script>
<?php 
}