class WPR_Widget_Image extends WP_Widget_Media_Image

class WPR_Widget_Image extends WP_Widget_Media_Image {
    function __construct() {
        parent::__construct();
        add_filter( 'widget_media_image_instance_schema', array( $this, 'schema' ) );
    }
	function schema( $schema ) {
	   return array_merge( array(
			'template'    => array(
				'type'    => 'string',
				'enum'    =>  array( 'default', 'parallax' ),
				'default' => 'default',
            ),
        ), $schema );
	}

	public function enqueue_admin_scripts() {
        wp_enqueue_script( 'ruddie-image-widgets', WPR_URL . '/js/image-widget.js' );
		parent::enqueue_admin_scripts();
    }
	public function render_control_template_scripts() {
		parent::render_control_template_scripts();
        ?>
    	<script type="text/html" id="tmpl-ruddie-image-setting">
            <label class="setting template">
                <span><?php _e( 'Template' ); ?></span>
    			<select name="temlate" data-setting="template">
    				<?php
    				$templates = array(
                        'default' => __( 'Default' ),
                        'parallax' => __( 'Parallax' )
                    );

    				foreach ( $templates as $key => $label ) :
    					?>
    					<option value="<?php echo esc_attr( $key ); ?>">
    						<?php echo esc_html( $label ); ?>
    					</option>
    				<?php endforeach; ?>
    			</select>
            </label>
    	</script>
        <?php
    }
}