Current File : /home/dopla/www/wp-content/plugins/polylang/include/class-polylang.php
<?php
if ( ! defined( 'ABSPATH' ) ) {
exit; // Don't access directly
};
// Default directory to store user data such as custom flags
if ( ! defined( 'PLL_LOCAL_DIR' ) ) {
define( 'PLL_LOCAL_DIR', WP_CONTENT_DIR . '/polylang' );
}
// Includes local config file if exists
if ( file_exists( PLL_LOCAL_DIR . '/pll-config.php' ) ) {
include_once PLL_LOCAL_DIR . '/pll-config.php';
}
/**
* Controls the plugin, as well as activation, and deactivation
*
* @since 0.1
*/
class Polylang {
/**
* Constructor
*
* @since 0.1
*/
public function __construct() {
require_once PLL_INC . '/functions.php'; // VIP functions
spl_autoload_register( array( $this, 'autoload' ) ); // Autoload classes
$install = new PLL_Install( POLYLANG_BASENAME );
// Stopping here if we are going to deactivate the plugin ( avoids breaking rewrite rules )
if ( $install->is_deactivation() ) {
return;
}
// Plugin initialization
// Take no action before all plugins are loaded
add_action( 'plugins_loaded', array( $this, 'init' ), 1 );
// Override load text domain waiting for the language to be defined
// Here for plugins which load text domain as soon as loaded :(
if ( ! defined( 'PLL_OLT' ) || PLL_OLT ) {
PLL_OLT_Manager::instance();
}
// Extra code for compatibility with some plugins
// Loaded as soon as possible as we may need to act before other plugins are loaded
if ( ! defined( 'PLL_PLUGINS_COMPAT' ) || PLL_PLUGINS_COMPAT ) {
PLL_Plugins_Compat::instance();
}
}
/**
* Autoload classes
*
* @since 1.2
*
* @param string $class
*/
public function autoload( $class ) {
// Not a Polylang class
if ( 0 !== strncmp( 'PLL_', $class, 4 ) ) {
return;
}
$class = str_replace( '_', '-', strtolower( substr( $class, 4 ) ) );
$to_find = array( 'media', 'share', 'slug', 'slugs', 'sync', 'translate', 'wpml', 'xdata', 'rest', 'bulk' );
$dir = implode( '-', array_intersect( explode( '-', $class ), $to_find ) );
$dirs = array(
PLL_FRONT_INC,
PLL_MODULES_INC,
PLL_MODULES_INC . "/$dir",
PLL_MODULES_INC . '/plugins',
PLL_INSTALL_INC,
PLL_ADMIN_INC,
PLL_SETTINGS_INC,
PLL_INC,
);
foreach ( $dirs as $dir ) {
if ( file_exists( $file = "$dir/$class.php" ) ) {
require_once $file;
return;
}
}
}
/**
* Tells whether the current request is an ajax request on frontend or not
*
* @since 2.2
*
* @return bool
*/
public static function is_ajax_on_front() {
// Special test for plupload which does not use jquery ajax and thus does not pass our ajax prefilter
// Special test for customize_save done in frontend but for which we want to load the admin
$in = isset( $_REQUEST['action'] ) && in_array( $_REQUEST['action'], array( 'upload-attachment', 'customize_save' ) );
$is_ajax_on_front = wp_doing_ajax() && empty( $_REQUEST['pll_ajax_backend'] ) && ! $in;
/**
* Filters whether the current request is an ajax request on front.
*
* @since 2.3
*
* @param bool $is_ajax_on_front Whether the current request is an ajax request on front.
*/
return apply_filters( 'pll_is_ajax_on_front', $is_ajax_on_front );
}
/**
* Defines constants
* May be overridden by a plugin if set before plugins_loaded, 1
*
* @since 1.6
*/
public static function define_constants() {
// Cookie name. no cookie will be used if set to false
if ( ! defined( 'PLL_COOKIE' ) ) {
define( 'PLL_COOKIE', 'pll_language' );
}
// Backward compatibility with Polylang < 2.3
if ( ! defined( 'PLL_AJAX_ON_FRONT' ) ) {
define( 'PLL_AJAX_ON_FRONT', self::is_ajax_on_front() );
}
// Admin
if ( ! defined( 'PLL_ADMIN' ) ) {
define( 'PLL_ADMIN', defined( 'DOING_CRON' ) || ( defined( 'WP_CLI' ) && WP_CLI ) || ( is_admin() && ! PLL_AJAX_ON_FRONT ) );
}
// Settings page whatever the tab
if ( ! defined( 'PLL_SETTINGS' ) ) {
define( 'PLL_SETTINGS', is_admin() && ( ( isset( $_GET['page'] ) && 0 === strpos( $_GET['page'], 'mlang' ) ) || ! empty( $_REQUEST['pll_ajax_settings'] ) ) );
}
}
/**
* Polylang initialization
* setups models and separate admin and frontend
*
* @since 1.2
*/
public function init() {
global $polylang;
self::define_constants();
$options = get_option( 'polylang' );
// Plugin upgrade
if ( $options && version_compare( $options['version'], POLYLANG_VERSION, '<' ) ) {
$upgrade = new PLL_Upgrade( $options );
if ( ! $upgrade->upgrade() ) { // If the version is too old
return;
}
}
// Make sure that this filter is *always* added before PLL_Model::get_languages_list() is called for the first time
add_filter( 'pll_languages_list', array( 'PLL_Static_Pages', 'pll_languages_list' ), 2, 2 ); // Before PLL_Links_Model
/**
* Filter the model class to use
* /!\ this filter is fired *before* the $polylang object is available
*
* @since 1.5
*
* @param string $class either PLL_Model or PLL_Admin_Model
*/
$class = apply_filters( 'pll_model', PLL_SETTINGS ? 'PLL_Admin_Model' : 'PLL_Model' );
$model = new $class( $options );
$links_model = $model->get_links_model();
if ( PLL_SETTINGS ) {
$polylang = new PLL_Settings( $links_model );
}
elseif ( PLL_ADMIN ) {
$polylang = new PLL_Admin( $links_model );
}
// Do nothing on frontend if no language is defined
elseif ( $model->get_languages_list() && empty( $_GET['deactivate-polylang'] ) ) {
$polylang = new PLL_Frontend( $links_model );
}
if ( ! $model->get_languages_list() ) {
/**
* Fires when no language has been defined yet
* Used to load overridden textdomains
*
* @since 1.2
*/
do_action( 'pll_no_language_defined' );
}
if ( ! empty( $polylang ) ) {
/**
* Fires after the $polylang object is created and before the API is loaded
*
* @since 2.0
*
* @param object $polylang
*/
do_action_ref_array( 'pll_pre_init', array( &$polylang ) );
require_once PLL_INC . '/api.php'; // Loads the API
if ( ! defined( 'PLL_WPML_COMPAT' ) || PLL_WPML_COMPAT ) {
PLL_WPML_Compat::instance(); // WPML API
PLL_WPML_Config::instance(); // wpml-config.xml
}
$polylang->init();
/**
* Fires after the $polylang object and the API is loaded
*
* @since 1.7
*
* @param object $polylang
*/
do_action_ref_array( 'pll_init', array( &$polylang ) );
}
}
}
new Polylang();
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