/**
* Access to the single instance of the class
*
* @since 1.7
*
* @return object
*/
public static function instance()
{
if (empty(self::$instance)) {
self::$instance = new self();
}
return self::$instance;
}
public function __construct()
{
// FIXME maybe not available on every installations but widely used by WP plugins
spl_autoload_register(array(&$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();
}
// loads the API
require_once PLL_INC . '/api.php';
// WPML API
if (!defined('PLL_WPML_COMPAT') || PLL_WPML_COMPAT) {
PLL_WPML_Compat::instance();
}
// extra code for compatibility with some plugins
if (!defined('PLL_PLUGINS_COMPAT') || PLL_PLUGINS_COMPAT) {
PLL_Plugins_Compat::instance();
}
}
/**
* 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);
} elseif ($model->get_languages_list() && empty($_GET['deactivate-polylang'])) {
$polylang = new PLL_Frontend($links_model);
}
if (!$model->get_languages_list()) {
/**
* Fires when no language has been defined yet
* Used to load overriden textdomains
*
* @since 1.2
*/
do_action('pll_no_language_defined');
}
if (!empty($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));
}
}
function icl_translate($context, $name, $string = false, $bool = false, &$has_translation = null, $lang = null)
{
// FIXME WPML can automatically registers the string based on an option
if (empty($string)) {
$string = PLL_WPML_Compat::instance()->get_string_by_context_and_name($context, $name);
}
return empty($lang) ? pll__($string) : pll_translate_string($string, $lang);
}
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;
}
}
// /!\ this filter is fired *before* the $polylang object is available
$class = apply_filters('pll_model', PLL_SETTINGS ? 'PLL_Admin_Model' : 'PLL_Model');
$model = new $class($options);
$links_model = $model->get_links_model();
add_filter('pll_languages_list', array('PLL_Static_Pages', 'pll_languages_list'), 2, 2);
// before PLL_Links_Model
if (PLL_SETTINGS) {
$polylang = new PLL_Settings($links_model);
} elseif (PLL_ADMIN) {
$polylang = new PLL_Admin($links_model);
} elseif ($model->get_languages_list() && empty($_GET['deactivate-polylang'])) {
$polylang = new PLL_Frontend($links_model);
}
if (!$model->get_languages_list()) {
do_action('pll_no_language_defined');
// to load overriden textdomains
}
if (!empty($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();
do_action('pll_init', $polylang);
}
}
