FCP

facebook-conversion-pixel.php

elseif ( is_admin() ) {
	/**
	 * Include plugin options page
	 * @since 1.0
	 */
	include_once( plugin_dir_path( __FILE__ ) . 'includes/admin.php' );

	/**
	 * Include Custom Metaboxes and Fields Library
	 * @since 1.2
	 */
	if ( file_exists(  __DIR__ . '/includes/cmb2/init.php' ) ) {
	  require_once  __DIR__ . '/includes/cmb2/init.php';
	}

	/**
	 * Display meta box in admin
	 * @since 1.2
	 */
	function fb_pxl_display_meta_box() {
		$prefix = 'fb_pxl_';

		$options = get_option( 'fb_pxl_options' );
		$post_types = array();
		foreach ( $options as $post_type => $checkbox ) {
			if ( 'on' == $checkbox )
				array_push( $post_types, $post_type );
		}

		$metabox = new_cmb2_box( array(
			'id'            => $prefix . 'metabox',
			'title'         => 'Facebook Conversion Pixel',
			'object_types'  => $post_types,
			'context'       => 'normal',
			'priority'      => 'high',
			'show_names'    => true,
		) );

		$metabox->add_field( array(
			'name' => 'Insert Code',
			'desc' => 'Insert Facebook Conversion Pixel code on this page',
			'id'   => $prefix . 'checkbox',
			'type' => 'checkbox',
		) );

		$metabox->add_field( array(
			'name' => 'Conversion Pixel',
			'desc' => 'Paste your Facebook Conversion Pixel code here',
			'id'   => $prefix . 'conversion_code',
			'type' => 'textarea_code',
		) );
	}
	add_filter( 'cmb2_init', 'fb_pxl_display_meta_box' );