plugin.php

<?php
/**
 * Plugin Name: AgentPress Listings
 * Plugin URI: https://www.studiopress.com/
 * Description: AgentPress Listings is a plugin which adds a Listings custom post type for Real Estate agents.
 * Author: StudioPress
 * Author URI: https://www.studiopress.com/
 *
 * Version: 1.3.4
 *
 * Text Domain: agentpress-listings
 * Domain Path: /languages/
 *
 * License: GNU General Public License v2.0 (or later)
 * License URI: https://opensource.org/licenses/gpl-license.php
 *
 * @package agentpress-listing
 */

register_activation_hook( __FILE__, 'agentpress_listings_activation' );

/**
 * This function runs on plugin activation. It checks to make sure the required
 * minimum Genesis version is installed. If not, it deactivates itself.
 *
 * @since 0.1.0
 */
function agentpress_listings_activation() {

	$latest = '2.0.2';

	if ( 'genesis' !== get_option( 'template' ) ) {

		// Deactivate ourself.
		deactivate_plugins( plugin_basename( __FILE__ ) );
		wp_die(
			sprintf(
				wp_kses(
					// translators: %1$s is the link.
					__( 'Sorry, you can\'t activate unless you have installed <a href="%1$s">Genesis</a>', 'agentpress-listings' ),
					array(
						'a' => array(
							'href' => array(),
						),
					)
				),
				'http://my.studiopress.com/themes/genesis/'
			)
		);

	}

	if ( version_compare( wp_get_theme( 'genesis' )->get( 'Version' ), $latest, '<' ) ) {

		// Deactivate ourself.
		deactivate_plugins( plugin_basename( __FILE__ ) ); /** Deactivate ourself */
		// translators: %1$s is the link and %2$s is the version.
		wp_die(
			sprintf(
				wp_kses(
					// translators: %1$s is the link and %2$s is the version.
					__( 'Sorry, you cannot activate without <a href="%1$s">Genesis %2$s</a> or greater', 'agentpress-listings' ),
					array(
						'a' => array(
							'href' => array(),
						),
					)
				),
				'http://www.studiopress.com/support/showthread.php?t=19576',
				esc_html( $latest )
			)
		);

	}

	/** Flush rewrite rules */
	if ( ! post_type_exists( 'listing' ) ) {

			agentpress_listings_init();
			global $_agentpress_listings, $_agentpress_taxonomies;
			$_agentpress_listings->create_post_type();
			$_agentpress_taxonomies->register_taxonomies();

	}

		flush_rewrite_rules();

}

add_action( 'after_setup_theme', 'agentpress_listings_init' );
/**
 * Initialize AgentPress Listings.
 *
 * Include the libraries, define global variables, instantiate the classes.
 *
 * @since 0.1.0
 */
function agentpress_listings_init() {

	/** Do nothing if a Genesis child theme isn't active */
	if ( ! function_exists( 'genesis_get_option' ) ) {
		return;
	}

	global $_agentpress_listings, $_agentpress_taxonomies;

	define( 'APL_URL', plugin_dir_url( __FILE__ ) );
	define( 'APL_VERSION', '1.3.4' );

	/** Load textdomain for translation */
	load_plugin_textdomain( 'agentpress-listings', false, basename( dirname( __FILE__ ) ) . '/languages/' );

	/** Includes */
	require_once dirname( __FILE__ ) . '/includes/functions.php';
	require_once dirname( __FILE__ ) . '/includes/class-agentpress-listings.php';
	require_once dirname( __FILE__ ) . '/includes/class-agentpress-taxonomies.php';
	require_once dirname( __FILE__ ) . '/includes/class-agentpress-featured-listings-widget.php';
	require_once dirname( __FILE__ ) . '/includes/class-agentpress-listings-search-widget.php';

	/** Instantiate */
	$_agentpress_listings   = new AgentPress_Listings();
	$_agentpress_taxonomies = new AgentPress_Taxonomies();

	add_action( 'widgets_init', 'agentpress_register_widgets' );

}

/**
 * Register Widgets that will be used in the AgentPress Listings plugin
 *
 * @since 0.1.0
 */
function agentpress_register_widgets() {

	$widgets = array( 'AgentPress_Featured_Listings_Widget', 'AgentPress_Listings_Search_Widget' );

	foreach ( (array) $widgets as $widget ) {
		register_widget( $widget );
	}

}