<?php

/**

 * class xili_language_admin - 2.6.3 - 2.7.1 - 2.8.0 - 2.8.1

 *

 */

class xili_language_admin extends xili_language {

	// 2.5

	var $authorbrowserlanguage = ''; // author default browser language

	var $exists_style_ext = false; // test if external style exists in theme

	var $style_folder = ''; // where is xl-style.css

	var $style_flag_folder_path = ''; // where are flags

	var $style_message = '';

	var $wikilink = 'http://wiki.xiligroup.org';

	var $parent = null;

	var $news_id = 0; //for multi pointers

	var $news_case = array();

	var $admin_messages = array(); //set in #491

	/**

	 * PHP 5 Constructor

	 */		

	function __construct( $xl_parent ){

		$this->parent = $xl_parent; // to keep values built in parent filters...

		parent::__construct( false, false, true );  // need parent constructed values (third param - tell coming admin-class //2.6

		// since 2.2.0

		add_action( 'admin_bar_init', array( &$this, 'admin_bar_init') ); // add button in toolbar

		// 2.8.0 dashboard language - inspired from Takayuki Miyoshi works

		add_filter( 'locale', array( &$this, 'admin_side_locale') ); 

		add_action( 'admin_init', array( &$this, 'switch_user_locale') );

		add_action( 'personal_options_update', array( &$this, 'update_user_dashboard_lang_option') );

		add_action( 'personal_options', array( &$this, 'select_user_dashboard_locale') );

		// plugins list infos

		add_filter( 'plugin_row_meta', array( &$this, 'more_infos_in_plugin_list' ), 10, 2);  // class WP_Plugins_List_Table

		add_filter( 'plugin_action_links', array( &$this, 'more_plugin_actions' ), 10, 2); // class WP_Plugins_List_Table

		add_action( 'after_plugin_row', array( &$this, 'more_plugin_row' ), 10, 3); // class WP_Plugins_List_Table

		// Dashboard menu and settings pages

		add_action( 'admin_menu', array(&$this, 'add_menu_settings_pages') );

		add_action( 'admin_print_styles-settings_page_language_page', array(&$this, 'print_styles_options_language_page'), 20 );

		add_action( 'admin_print_styles-settings_page_language_front_set', array(&$this, 'print_styles_options_language_tabs'), 20 );

		add_action( 'admin_print_styles-settings_page_language_expert', array(&$this, 'print_styles_options_language_tabs'), 20 );

		add_action( 'admin_print_styles-settings_page_language_support', array(&$this, 'print_styles_options_language_support'), 20 );

		// Edit Post Page

		add_action( 'admin_init', array(&$this,'admin_init') ); // styles registering

		add_action( 'admin_menu', array(&$this, 'add_custom_box_in_post_edit') );

		add_action( 'admin_print_scripts-post.php', array(&$this,'find_post_script')); // 2.2.2

		add_action( 'admin_print_scripts-post-new.php', array(&$this,'find_post_script'));

		add_action( 'admin_print_styles-post.php', array(&$this, 'print_styles_cpt_edit') );

		add_action( 'admin_print_styles-post-new.php', array(&$this, 'print_styles_cpt_edit') );

		//add_filter( 'is_protected_meta', array(&$this,'hide_lang_post_meta'), 10, 3 ); // 2.5

		//add_filter( 'post_meta_key_subselect', array(&$this,'hide_lang_post_meta_popup'), 10, 2); // 2.5

		/* actions for edit post page */

		add_action( 'save_post', array(&$this,'xili_language_add'), 10, 2 );

		add_action( 'save_post', array(&$this, 'fixes_post_slug'), 11, 2 ); // 2.5

		// Edit Attachment Media

		add_filter( 'attachment_fields_to_edit', array(&$this,'add_language_attachment_fields'), 10, 2 ); // 2.6.3

		add_filter( 'attachment_fields_to_save', array(&$this,'set_attachment_fields_to_save'), 10, 2 ); // 2.6.3

		add_action( 'delete_attachment', array(&$this,'if_cloned_attachment') ); // 2.6.3

		add_filter( 'wp_delete_file', array(&$this,'if_file_cloned_attachment') ); // 2.6.3

		// posts edit table

		add_filter( 'manage_post_posts_columns', array(&$this,'xili_manage_column_name')); // 2.8.1

		add_filter( 'manage_page_posts_columns', array(&$this,'xili_manage_column_name'));

		add_filter( 'manage_media_columns', array(&$this,'xili_manage_column_name')); // 2.6.3

		$custompoststype = $this->xili_settings['multilingual_custom_post'] ; // 2.8.1

 		if ( $custompoststype != array()) {

			foreach ( $custompoststype as $key => $customtype ) {

 				if ( ( !class_exists( 'bbPress') && $customtype['multilingual'] == 'enable' ) || ( class_exists( 'bbPress')  && ! in_array( $key, array( bbp_get_forum_post_type(), bbp_get_topic_post_type(), bbp_get_reply_post_type() ) ) && $customtype['multilingual'] == 'enable' ) ) {

 					add_filter( 'manage_'.$key.'_posts_columns', array(&$this,'xili_manage_column_name'));

 				}

			}

 		}

		if ( class_exists( 'bbPress' ) ) {

			add_filter( 'bbp_admin_forums_column_headers', array(&$this,'xili_manage_column_name'));

			add_filter( 'bbp_admin_topics_column_headers', array(&$this,'xili_manage_column_name'));

			add_filter( 'bbp_admin_replies_column_headers', array(&$this,'xili_manage_column_name')); //2.8.1

		}

		add_action( 'manage_posts_custom_column', array(&$this,'xili_manage_column'), 10, 2);

		add_action( 'manage_pages_custom_column', array(&$this,'xili_manage_column'), 10, 2);

		add_action( 'manage_media_custom_column', array(&$this,'xili_manage_column'), 10, 2); // 2.6.3

		add_action( 'admin_print_styles-edit.php', array(&$this, 'print_styles_posts_list'), 20 );

		add_action( 'admin_print_styles-upload.php', array(&$this, 'print_styles_posts_list'), 20 );// 2.6.3

		// quick edit languages in list - 1.8.9 

		add_action( 'quick_edit_custom_box', array(&$this,'languages_custom_box'), 10, 2);

		add_action( 'admin_head-edit.php', array(&$this,'quick_edit_add_script') );

		add_action( 'bulk_edit_custom_box', array(&$this,'hidden_languages_custom_box'), 10, 2); // 1.8.9.3

		// sub-select in admin/edit.php 1.8.9

		add_action( 'restrict_manage_posts', array(&$this,'restrict_manage_languages_posts') );

		/* categories edit-tags table */

		add_filter( 'manage_edit-category_columns', array(&$this,'xili_manage_tax_column_name'));

		add_filter( 'manage_category_custom_column', array(&$this,'xili_manage_tax_column'), 10, 3); // 2.6

		add_filter( 'category_row_actions', array(&$this,'xili_manage_tax_action'), 10, 2); // 2.6

		add_action( 'admin_print_styles-edit-tags.php', array(&$this, 'print_styles_posts_list'), 20 );

		add_action( 'category_edit_form_fields', array(&$this, 'show_translation_msgstr'), 10, 2 );

		add_action( 'category_add_form', array(&$this, 'update_xd_msgid_list') ); //do_action($taxonomy . '_add_form', $taxonomy);

		/* actions for edit link page */	

		add_action( 'admin_menu', array(&$this, 'add_custom_box_in_link') );

		add_filter( 'manage_link-manager_columns', array(&$this,'xili_manage_link_column_name') ); // 1.8.5

		add_action( 'manage_link_custom_column', array(&$this,'manage_link_lang_column'),10,2);

		add_action( 'admin_print_styles-link.php', array(&$this, 'print_styles_link_edit'), 20 );

		// set or update term for this link taxonomy

		add_action( 'edit_link', array(&$this,'edit_link_set_lang') );

		add_action( 'add_link', array(&$this,'edit_link_set_lang') );

		//display contextual help

	    add_action( 'contextual_help', array( &$this,'add_help_text' ), 10, 3 ); /* 1.7.0 */

	}

	/**

 	 * Checks if we should add links to the admin bar.

 	 *

 	 * @since 2.2.0

 	 */

	function admin_bar_init() {

	// Is the user sufficiently leveled, or has the bar been disabled? !is_super_admin() || 

		if ( !is_admin_bar_showing() )

			return;

	 // editor rights

		if ( current_user_can ( 'xili_language_menu' ) )

			add_action( 'admin_bar_menu', array( &$this,'xili_tool_bar_links' ), 500 );

			add_action( 'admin_bar_menu', array( &$this,'lang_admin_bar_menu' ), 500 );

	}

	/**

 	 * Checks if we should add links to the bar. 

 	 *

 	 * @since 2.2 

 	 * updated and renamed 2.4.2 (node)

 	 */

	function xili_tool_bar_links() {

		$link = plugins_url( 'images/xililang-logo-24.png', $this->file_file ) ;

		$alt = __( 'Languages by ©xiligroup' ,'xili-language');

		$title = __( 'Languages menu by ©xiligroup' ,'xili-language');

		// Add the Parent link. 

		$this->add_node_if_version( array(

			'title' => sprintf("<img src=\"%s\" alt=\"%s\" title=\"%s\" />", $link, $alt, $title ), 

			'href' => false,

			'id' => 'xili_links',

		));

		if ( current_user_can ( 'xili_language_set' ) )

			$this->add_node_if_version( array(

				'title' => __('Languages settings','xili-language'),

				'href' => admin_url('options-general.php?page=language_page'),

				'id' => 'xl-set',

				'parent' => 'xili_links',

				'meta' => array('title' => __('Languages settings','xili-language') )

			));

		if ( class_exists('xili_tidy_tags' ) && current_user_can ('xili_tidy_editor_set') ) 

			$this->add_node_if_version( array(

				'title' => sprintf(__("Tidy %s settings","xili_tidy_tags"), __('Tags') ),

				'href' => admin_url( 'admin.php?page=xili_tidy_tags_settings' ),

				'id' => 'xtt-set',

				'parent' => 'xili_links',

				'meta' => array('title' => sprintf(__("Tidy %s settings","xili_tidy_tags"), __('Tags') ) )

			));

		if ( class_exists('xili_tidy_tags' ) && current_user_can ('xili_tidy_editor_group') ) 

			$this->add_node_if_version( array(

				'title' => sprintf( __('%s groups','xili_tidy_tags'), __('Tags')),

				'href' => admin_url( 'admin.php?page=xili_tidy_tags_assign' ),

				'id' => 'xtt-group',

				'parent' => 'xili_links',

				'meta' => array('title' => sprintf( __('%s groups','xili_tidy_tags'), __('Tags') ) )

			));	

		if ( class_exists('xili_dictionary' ) && current_user_can ('xili_dictionary_set')) {

			if ( XILIDICTIONARY_VER > '1.5' ) {

				global $xili_dictionary;

				$link = $xili_dictionary->xd_settings_page ;  // XD 2.0

			} else {

				$link = 'tools.php?page=dictionary_page';

			}

			$this->add_node_if_version( array(

				'title' => 'xili-dictionary',

				'href' => admin_url( $link ),

				'id' => 'xd-set',

				'parent' => 'xili_links',

				'meta' => array('title' => sprintf( __('Translation with %s tools','xili-language'), 'xili-dictionary' ) )

			));		

		}

		$this->add_node_if_version( array(

			'title' => __('xili-language : how to','xili-language'),

			'href' => 'http://multilingual.wpmu.xilione.com',

			'id' => 'xilione-multi',

			'parent' => 'xili_links',

			'meta' => array('target' => '_blank')

		));

		$this->add_node_if_version( array(

			'title' => __('About ©xiligroup plugins','xili-language'),

			'href' => 'http://dev.xiligroup.com',

			'id' => 'xili-about',

			'parent' => 'xili_links',

			'meta' => array('target' => '_blank')

		));

	}

	function add_node_if_version ( $args ) {

		global $wp_admin_bar, $wp_version;

		if ( version_compare($wp_version, '3.3', '<') ) {

			$wp_admin_bar->add_menu( $args );

		} else {

			$wp_admin_bar->add_node( $args );	

		}

	}

	/**

	 * Admin side localization - user's dashboard

	 *

	 * @since 2.8.0

	 *

	 */

	function admin_side_locale( $locale = 'en_US' ) {

		$locale = get_user_option( 'user_locale' ); 

		if ( empty( $locale ) )

			$locale = $this->get_default_locale();

		return $locale;

	}

	/**

	 * Admin side localization - available languages inside WP core installation

	 *

	 * @since 2.8.0

	 *

	 */

	function get_default_locale() {

		$locale = ( defined( 'WPLANG' ) ) ? WPLANG : 'en_US';

		if ( is_multisite() ) {

			if ( defined( 'WP_INSTALLING' ) || ( false === $ms_locale = get_option( 'WPLANG' ) ) )

				$ms_locale = get_site_option( 'WPLANG' );

			if ( $ms_locale !== false )

				$locale = $ms_locale;

		}

		return $locale;

	}

	// Admin Bar at top right

	function lang_admin_bar_menu( ) {

		$screen = get_current_screen();  // to limit unwanted side effects (form)

		if ( in_array ( $screen->id , array (

		'dashboard', 'users', 'profile',

		'edit-post', 'edit-page', 'link-manager', 'upload',

		'settings_page_language_page', 'settings_page_language_front_set',  

		'settings_page_language_expert','settings_page_language_support',

		'xdmsg', 'edit-xdmsg', 'xdmsg_page_dictionary_page'

		) ) 

		|| ( false !== strpos ( $screen->id , '_page_xili_tidy_tags_assign' ) ) 

		) {

			$current_locale = $this->admin_side_locale();

			$current_language = (isset ( $this->examples_list[$current_locale]) ) ? $this->examples_list[$current_locale] : '';

			if ( ! $current_language )

				$current_language = $current_locale;

			$this->add_node_if_version( array(

				'parent' => 'top-secondary',

				'id' => 'xili-user-locale',

				'title' => __('Language','xili-language').': '. $this->lang_to_show( $current_language ) ) ); // '✔ '

			$available_languages = $this->available_languages(

				array( 'exclude' => array( $current_locale ) ) );

			foreach ( $available_languages as $locale => $lang ) {

				$url = admin_url( 'profile.php?action=lang-switch-locale&locale=' . $locale );

				$url = add_query_arg(

					array( 'redirect_to' => urlencode( $_SERVER['REQUEST_URI'] ) ),

					$url );

				$url = wp_nonce_url( $url, 'lang-switch-locale' );

				$this->add_node_if_version( array(

					'parent' => 'xili-user-locale',

					'id' => 'xili-user-locale-' . $locale,

					'title' => $this->lang_to_show( $lang ),

					'href' => $url ) );

			}

		}

	}

	function switch_user_locale() {

		if ( empty( $_REQUEST['action'] ) || 'lang-switch-locale' != $_REQUEST['action'] )

			return;

		check_admin_referer( 'lang-switch-locale' );

		$locale = isset( $_REQUEST['locale'] ) ? $_REQUEST['locale'] : '';

		if ( ! $this->is_available_locale( $locale ) || $locale == $this->admin_side_locale() )

			return;

		update_user_option( get_current_user_id(), 'user_locale', $locale, true );

		if ( ! empty( $_REQUEST['redirect_to'] ) ) {

			wp_safe_redirect( $_REQUEST['redirect_to'] );

			exit();

		}

	}

	function  is_available_locale( $locale ) {

		return ! empty( $locale ) && array_key_exists( $locale, (array) $this->available_languages() );

	}

	function available_languages( $args = '' ) {

		$defaults = array(

			'exclude' => array(),

			'orderby' => 'key',

			'order' => 'ASC' );

		$args = wp_parse_args( $args, $defaults );

		$langs = array();

		$installed_locales = get_available_languages();

		$installed_locales[] = $this->get_default_locale();

		$installed_locales[] = 'en_US';

		$installed_locales = array_unique( $installed_locales );

		$installed_locales = array_filter( $installed_locales );

		foreach ( $installed_locales as $locale ) {

			if ( in_array( $locale, (array) $args['exclude'] ) )

				continue;

			$lang = ( isset ( $this->examples_list[$locale]) ) ? $this->examples_list[$locale] : '';

			if ( empty( $lang ) )

				$lang = "[$locale]";

			$langs[$locale] = $lang;

		}

		if ( 'value' == $args['orderby'] ) {

			natcasesort( $langs );

			if ( 'DESC' == $args['order'] )

				$langs = array_reverse( $langs );

		} else {

			if ( 'DESC' == $args['order'] )

				krsort( $langs );

			else

				ksort( $langs );

		}

		$langs = apply_filters( 'xili_available_languages', $langs, $args );

		return $langs;

	}

	/**

	 * Adds option in user profile to set and update his dashboard language

	 * 

	 * 'user_locale' saved as iso (en_US or fr_FR ….)

	 * @since 2.8.0

	 * 

	 */

	function update_user_dashboard_lang_option() {

		if ( ! isset( $_POST['user_locale'] ) || empty( $_POST['user_locale'] ) )

			$locale = null;

		else

			$locale = $_POST['user_locale'];

		update_user_option( get_current_user_id(), 'user_locale', $locale, true );

	}

	function select_user_dashboard_locale() {

		$available_languages = $this->available_languages( 'orderby=value' );

		$selected = $this->admin_side_locale();

		?>

		<tr>

			<th scope="row"><?php echo esc_html( __( 'Your dashboard language', 'xili-language' ) ); ?></th>

			<td>

				<select name="user_locale">

				<?php foreach ( $available_languages as $locale => $lang ) : ?>

					<option value="<?php echo esc_attr( $locale ); ?>" <?php selected( $locale, $selected ); ?>><?php echo esc_html( $this->lang_to_show( $lang ) ); ?></option>

				<?php endforeach; ?>

				</select>

				<p><em><?php _e('System’s default language is', 'xili-language'); echo ": " . $this->get_default_locale(); ?></em></p>

			</td>

		</tr>

		<?php

	}

	function lang_to_show ( $lang = 'english' ) {

		return ucwords( $lang ); // uppercase each word

	}

	/** end dashboard user's language functions **/

	/**

	 * Adds links to the plugin row on the plugins page.

	 * Thanks to Zappone et WP engineer.com

	 *

	 * @param mixed $links

	 * @param mixed $file

	 */

	function more_infos_in_plugin_list( $links, $file ) {

		$base = $this->plugin_basename ;

		if ( $file == $base ) {

			$links[] = '<a href="options-general.php?page=language_page">' . __('Settings') . '</a>';

			$links[] = __('Informations and Getting started:', 'xili-language') . ' <a href="'. $this->wikilink . '">' . __('Xili Wiki', 'xili-language') . '</a>';

			$links[] = '<a href="http://forum2.dev.xiligroup.com">' . __('Forum and Support', 'xili-language') . '</a>';

			$links[] = '<a href="http://dev.xiligroup.com/donate/">' . __('Donate', 'xili-language') . '</a>';

		}

		return $links;

	}

	/**

	 * Adds a row to comment situation for multilingual context !

	 *

	 */

	function more_plugin_row ( $plugin_file, $plugin_data, $status ) {

		$base = $this->plugin_basename ;

		if ( $plugin_file == $base ) {

			$statusXili =  array ();

			$statusXili[] = __('Congratulations for choosing xili-language to built a multilingual website. To work optimally, 2 other plugins are recommended', 'xili-language');

			$statusXili[] = $this->plugin_status ( 'xili-dictionary', 'xili-dictionary/xili-dictionary.php', $status ) ;

			$statusXili[] = $this->plugin_status ( 'xili-tidy-tags', 'xili-tidy-tags/xili-tidy-tags.php' , $status) ;

			if ( is_child_theme() ) { 

				$theme_name = get_option("stylesheet").' '.__('child of','xili-language').' '.get_option("template"); 

			} else {

				$theme_name = get_option("template"); 

			}

			$statusXili[] = sprintf ( __('For Appearance the current active theme is <em>%s</em>', 'xili-language'), $theme_name );

			if ( $this->parent->xili_settings['theme_domain'] == '' ) {	

				$statusXili[] = sprintf (__('This theme <em>%s</em> seems to not contain localization function (load_theme_textdomain) to be used for a multilingual website', 'xili-language'), $theme_name );

			} else {

				$statusXili[] = sprintf (__('This theme <em>%s</em> seems to contain localization function to be used for a multilingual website', 'xili-language'), $theme_name );

			}

			$cb_col = '<img src="'.plugins_url( 'images/xililang-logo-24.png', $this->file_file ).'" alt="xili-language trilogy"/>';

			$action_col = __('More infos about', 'xili-language') . '<br />&nbsp;&nbsp;' . $plugin_data['Name'] ;

			$description_col = implode ( '. ', $statusXili ).'.';

			echo "<tr><th>$cb_col</th><td>$action_col</td><td>$description_col</td></tr>";

		}

	}

	function plugin_status ( $plugin_name, $plugin_file, $status ) {

			if ( is_plugin_active( $plugin_file ) ){

				$plug_status = __('active', 'xili-language');

			} else {

				$plugins = get_plugins();

				if ( isset( $plugins[ $plugin_file ] ) ) {	

					$plug_status = __('inactive', 'xili-language');

				} else {

					$plug_status = __('not installed', 'xili-language');

				}

			}

		return sprintf ( __('Plugin %s is %s', 'xili-language'), $plugin_name, $plug_status ); 			

	}

	/**

	 * Add action link(s) to plugins page

	 * 

	 * @since 0.9.3

	 * @author MS

	 * @copyright Dion Hulse, http://dd32.id.au/wordpress-plugins/?configure-link and scripts@schloebe.de

	 */

	function more_plugin_actions( $links, $file ){

		$this_plugin = $this->plugin_basename ;

		if( $file == $this_plugin ){

			$settings_link = '<a href="options-general.php?page=language_page">' . __('Settings') . '</a>';

			$links = array_merge( array($settings_link), $links); // before other links

		}

		return $links;

	}