appthemes-updater.php

<?php
/*
 * Plugin Name: AppThemes Updater
 * Description: Automatically notifies you when AppThemes and Marketplace product updates are available.
 * Version: 1.4.1
 * Author: AppThemes
 * Author URI: https://www.appthemes.com
 * AppThemes ID: appthemes-updater
 * Text Domain: appthemes-updater
 * Domain Path: /languages
*/

function app_updater_activate() {
	app_refresh_themes();
	app_refresh_plugins();
}

function app_refresh_themes() {
	delete_site_transient( 'update_themes' );
	wp_update_themes();
}

function app_refresh_plugins() {
	delete_site_transient( 'update_plugins' );
	wp_update_plugins();
}

function app_extra_headers( $headers ) {
	$headers['AppThemes ID'] = 'AppThemes ID';

	return $headers;
}

function app_updater_init() {

	require_once( dirname( __FILE__ ) . '/updater-class.php' );
	require_once( dirname( __FILE__ ) . '/updater-ui.php' );

	new APP_Theme_Upgrader;
	new APP_Plugin_Upgrader;
	new APP_Upgrader_Regular;
}

if ( is_admin() ) {
	app_updater_init();

	add_filter( 'extra_plugin_headers', 'app_extra_headers' );
	add_filter( 'extra_theme_headers', 'app_extra_headers' );

	add_action( 'load-update-core.php', 'app_updater_activate' );
	remove_action( 'load-update-core.php', 'wp_update_plugins' );
	remove_action( 'load-update-core.php', 'wp_update_themes' );

	register_activation_hook( __FILE__, 'app_updater_activate' );
}

/**
 * Load the localization files.
 *
 * @since 1.4.0
 *
 * Note: the first-loaded translation file overrides any following ones if the same translation is present.
 *
 * Locales found in (unless WP_LANG_DIR is defined differently in wp-config.php:
 *   - wp-content/languages/appthemes-updater/appthemes-updater-LOCALE.mo
 *   - wp-content/languages/plugins/appthemes-updater-LOCALE.mo
 */
function app_updater_load_textdomain() {

	$domain = 'appthemes-updater';

	// Load the locale (e.g. de_DE) based on the WordPress site language set (wp-admin => Settings => General).
	$locale = apply_filters( 'plugin_locale', get_locale(), $domain );

	// Load any custom .mo file first, if it's found.
	load_textdomain( $domain, WP_LANG_DIR . '/' . $domain . '/' . $domain . '-' . $locale . '.mo' );

	// Load the plugin's .mo file if it's found and no custom .mo file exists.
	load_plugin_textdomain( $domain, false, plugin_basename( dirname( __FILE__ ) ) . '/languages' );
}
add_action( 'init', 'app_updater_load_textdomain' );

/**
 * Adds plugin action links.
 *
 * @since 1.4.0
 */
function app_updater_action_links( $links ) {

	$plugin_links = array(
		'<a href="' . esc_url( get_admin_url( null, 'options-general.php?page=appthemes-key-config' ) ) . '">' . __( 'Settings', 'appthemes-updater' ) . '</a>',
		'<a href="https://docs.appthemes.com/tutorials/installing-the-appthemes-updater-plugin/" target="_blank">' . __( 'Docs', 'appthemes-updater' ) . '</a>',
		'<a href="http://forums.appthemes.com/appthemes-updater-plugin/" target="_blank">' . __( 'Support', 'appthemes-updater' ) . '</a>',
	);

	return array_merge( $plugin_links, $links );
}
add_filter( 'plugin_action_links_' . plugin_basename(__FILE__), 'app_updater_action_links' );