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