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<?php |
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|
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/* |
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* manages custom menus translations as well as the language switcher menu item on admin side |
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* |
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* @since 1.2 |
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*/ |
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class PLL_Admin_Nav_Menu { |
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|
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/* |
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* constructor: setups filters and actions |
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* |
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* @since 1.2 |
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* |
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* @param object $polylang |
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*/ |
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public function __construct(&$polylang) { |
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$this->model = &$polylang->model; |
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$this->options = &$polylang->options; |
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$this->theme = get_option( 'stylesheet' ); |
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|
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// integration in the WP menu interface |
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add_action('admin_init', array(&$this, 'admin_init')); // after Polylang upgrade |
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|
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// integration with WP customizer |
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add_action('customize_register', array(&$this, 'create_nav_menu_locations'), 5); |
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|
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// protection against #24802 |
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add_filter('pre_insert_term', array(&$this, 'pre_insert_term'), 10, 2); |
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} |
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|
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/* |
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* setups filters and terms |
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* adds the language switcher metabox and create new nav menu locations |
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* |
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* @since 1.1 |
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*/ |
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public function admin_init(){ |
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add_action('admin_enqueue_scripts', array(&$this, 'admin_enqueue_scripts')); |
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add_action('wp_update_nav_menu_item', array(&$this, 'wp_update_nav_menu_item'), 10, 2); |
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add_filter('wp_get_nav_menu_items', array(&$this, 'translate_switcher_title')); |
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|
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// translation of menus based on chosen locations |
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add_filter('pre_update_option_theme_mods_' . $this->theme, array($this, 'update_nav_menu_locations')); |
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add_filter('theme_mod_nav_menu_locations', array($this, 'nav_menu_locations'), 20); |
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|
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// filter _wp_auto_add_pages_to_menu by language |
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add_action('transition_post_status', array(&$this, 'auto_add_pages_to_menu'), 5, 3); // before _wp_auto_add_pages_to_menu |
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|
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// FIXME is it possible to choose the order (after theme locations in WP3.5 and older) ? |
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// FIXME not displayed if Polylang is activated before the first time the user goes to nav menus http://core.trac.wordpress.org/ticket/16828 |
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add_meta_box('pll_lang_switch_box', __('Language switcher', 'polylang'), array( &$this, 'lang_switch' ), 'nav-menus', 'side', 'high'); |
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|
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$this->create_nav_menu_locations(); |
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} |
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|
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/* |
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* create temporary nav menu locations (one per location and per language) for all non-default language |
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* |
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* @since 1.2 |
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*/ |
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public function create_nav_menu_locations() { |
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global $_wp_registered_nav_menus; |
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|
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if (isset($_wp_registered_nav_menus)) { |
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foreach ($_wp_registered_nav_menus as $loc => $name) |
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foreach ($this->model->get_languages_list() as $lang) |
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$arr[$loc . (pll_default_language() == $lang->slug ? '' : '___' . $lang->slug)] = $name . ' ' . $lang->name; |
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|
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$_wp_registered_nav_menus = $arr; |
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} |
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} |
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|
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/* |
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* language switcher metabox |
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* The checkbox and all hidden fields are important |
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* thanks to John Morris for his very interesting post http://www.johnmorrisonline.com/how-to-add-a-fully-functional-custom-meta-box-to-wordpress-navigation-menus/ |
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* |
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* @since 1.1 |
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*/ |
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public function lang_switch() { |
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global $_nav_menu_placeholder, $nav_menu_selected_id; |
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$_nav_menu_placeholder = 0 > $_nav_menu_placeholder ? $_nav_menu_placeholder - 1 : -1;?> |
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|
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<div id="posttype-lang-switch" class="posttypediv"> |
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<div id="tabs-panel-lang-switch" class="tabs-panel tabs-panel-active"> |
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<ul id ="lang-switch-checklist" class="categorychecklist form-no-clear"> |
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<li> |
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<label class="menu-item-title"> |
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<input type="checkbox" class="menu-item-checkbox" name="menu-item[<?php echo $_nav_menu_placeholder; ?>][menu-item-object-id]" value="-1"> <?php _e('Language switcher', 'polylang'); ?> |
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</label> |
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<input type="hidden" class="menu-item-type" name="menu-item[<?php echo $_nav_menu_placeholder; ?>][menu-item-type]" value="custom"> |
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<input type="hidden" class="menu-item-title" name="menu-item[<?php echo $_nav_menu_placeholder; ?>][menu-item-title]" value="<?php _e('Language switcher', 'polylang'); ?>"> |
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<input type="hidden" class="menu-item-url" name="menu-item[<?php echo $_nav_menu_placeholder; ?>][menu-item-url]" value="#pll_switcher"> |
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</li> |
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</ul> |
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</div> |
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<p class="button-controls"> |
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<span class="add-to-menu"> |
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<input type="submit" <?php disabled( $nav_menu_selected_id, 0 ); ?> class="button-secondary submit-add-to-menu right" value="Add to Menu" name="add-post-type-menu-item" id="submit-posttype-lang-switch"> |
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<span class="spinner"></span> |
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</span> |
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</p> |
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</div><?php |
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} |
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|
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/* |
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* prepares javascript to modify the language switcher menu item |
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* |
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* @since 1.1 |
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*/ |
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public function admin_enqueue_scripts() { |
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$screen = get_current_screen(); |
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if ('nav-menus' != $screen->base) |
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return; |
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|
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$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min'; |
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wp_enqueue_script('pll_nav_menu', POLYLANG_URL .'/js/nav-menu'.$suffix.'.js', array('jquery'), POLYLANG_VERSION); |
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|
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// the strings for the options |
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foreach (array_reverse(PLL_Switcher::get_switcher_options('menu', 'string')) as $str) |
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$data['strings'][] = $str; |
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|
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$data['strings'][] = __('Language switcher', 'polylang'); // the title |
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|
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// get all language switcher menu items |
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$items = get_posts(array( |
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'numberposts' => -1, |
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'nopaging' => true, |
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'post_type' => 'nav_menu_item', |
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'fields' => 'ids', |
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'meta_key' => '_pll_menu_item' |
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)); |
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|
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// the options values for the language switcher |
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$data['val'] = array(); |
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foreach ($items as $item) |
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$data['val'][$item] = get_post_meta($item, '_pll_menu_item', true); |
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|
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// send all these data to javascript |
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wp_localize_script('pll_nav_menu', 'pll_data', $data); |
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} |
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|
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/* |
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* save our menu item options |
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* |
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* @since 1.1 |
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* |
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* @param int $menu_id not used |
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* @param int $menu_item_db_id |
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*/ |
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public function wp_update_nav_menu_item( $menu_id = 0, $menu_item_db_id = 0 ) { |
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if (empty($_POST['menu-item-url'][$menu_item_db_id]) || $_POST['menu-item-url'][$menu_item_db_id] != '#pll_switcher') |
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return; |
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|
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// security check |
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// as 'wp_update_nav_menu_item' can be called from outside WP admin |
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if ( ! current_user_can('edit_theme_options') ) |
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wp_die( __( 'Cheatin’ uh?' ) ); |
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|
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check_admin_referer( 'update-nav_menu', 'update-nav-menu-nonce' ); |
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|
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$options = array('hide_current' => 0,'force_home' => 0 ,'show_flags' => 0 ,'show_names' => 1); // default values |
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// our jQuery form has not been displayed |
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if (empty($_POST['menu-item-pll-detect'][$menu_item_db_id])) { |
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if (!get_post_meta($menu_item_db_id, '_pll_menu_item', true)) // our options were never saved |
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update_post_meta($menu_item_db_id, '_pll_menu_item', $options); |
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} |
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else { |
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foreach ($options as $opt => $v) |
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$options[$opt] = empty($_POST['menu-item-'.$opt][$menu_item_db_id]) ? 0 : 1; |
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update_post_meta($menu_item_db_id, '_pll_menu_item', $options); // allow us to easily identify our nav menu item |
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} |
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|
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} |
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|
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/* |
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* translates the language switcher menu items title in case the user switches the admin language |
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* |
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* @since 1.1.1 |
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* |
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* @param array $items |
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* @return array modified $items |
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*/ |
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public function translate_switcher_title($items) { |
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foreach ($items as $item) |
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if ('#pll_switcher' == $item->url) |
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$item->post_title = __('Language switcher', 'polylang'); |
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return $items; |
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} |
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|
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/* |
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* assign menu languages and translations based on (temporary) locations |
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* |
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* @since 1.1 |
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* |
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* @param array $mods theme mods |
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* @return unmodified $mods |
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*/ |
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public function update_nav_menu_locations($mods) { |
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if (isset($mods['nav_menu_locations'])) { |
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|
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// security check |
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if ( ! current_user_can('edit_theme_options') ) |
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wp_die( __( 'Cheatin’ uh?' ) ); |
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|
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if (isset($_REQUEST['action']) && 'locations' == $_REQUEST['action']) { |
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check_admin_referer( 'save-menu-locations' ); |
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$this->options['nav_menus'][$this->theme] = array(); |
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} |
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|
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elseif (isset($_REQUEST['action']) && 'update' == $_REQUEST['action']) { |
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check_admin_referer( 'update-nav_menu', 'update-nav-menu-nonce' ); |
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$this->options['nav_menus'][$this->theme] = array(); |
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} |
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|
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// customizer |
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// don't reset locations in this case. |
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// see http://wordpress.org/support/topic/menus-doesnt-show-and-not-saved-in-theme-settings-multilingual-site |
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elseif (isset($_REQUEST['action']) && 'customize_save' == $_REQUEST['action']) { |
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check_ajax_referer( 'save-customize_' . $GLOBALS['wp_customize']->get_stylesheet(), 'nonce' ); |
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} |
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|
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else |
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return; // not called from WP |
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|
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$default = pll_default_language(); |
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|
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// extract language and menu from locations |
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foreach ($mods['nav_menu_locations'] as $loc => $menu) { |
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if ($pos = strpos($loc, '___')) { |
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$this->options['nav_menus'][$this->theme][substr($loc, 0, $pos)][substr($loc, $pos+3)] = $menu; |
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unset($mods['nav_menu_locations'][$loc]); // remove temporary locations before database update |
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} |
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else |
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$this->options['nav_menus'][$this->theme][$loc][$default] = $menu; |
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} |
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|
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update_option('polylang', $this->options); |
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} |
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return $mods; |
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} |
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|
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/* |
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* fills temporary menu locations based on menus translations |
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* |
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* @since 1.2 |
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* |
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* @param bool|array $menus |
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* @return bool|array modified list of menu locations |
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*/ |
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public function nav_menu_locations($menus) { |
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if (is_array($menus)) { |
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foreach ($menus as $loc => $menu) { |
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foreach ($this->model->get_languages_list() as $lang) { |
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if (pll_default_language() != $lang->slug && !empty($this->options['nav_menus'][$this->theme][$loc][$lang->slug])) |
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$menus[$loc . '___' . $lang->slug] = $this->options['nav_menus'][$this->theme][$loc][$lang->slug]; |
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} |
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} |
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} |
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|
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return $menus; |
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} |
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|
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/* |
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* filters _wp_auto_add_pages_to_menu by language |
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* |
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* @since 0.9.4 |
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* |
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* @param string $new_status Transition to this post status. |
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* @param string $old_status Previous post status. |
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* @param object $post Post data. |
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*/ |
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public function auto_add_pages_to_menu( $new_status, $old_status, $post ) { |
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if ('publish' != $new_status || 'publish' == $old_status || 'page' != $post->post_type || ! empty($post->post_parent) || !($lang = $this->model->get_post_language($post->ID))) |
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return; |
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|
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// get all the menus in the post language |
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$menus = get_terms('nav_menu', array('lang' => $lang->slug, 'fields' => 'ids', 'hide_empty' => false)); |
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$menus = implode(',', $menus); |
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|
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add_filter('option_nav_menu_options', create_function('$a', "\$a['auto_add'] = array_intersect(\$a['auto_add'], array($menus)); return \$a;")); |
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} |
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|
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/* |
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* FIXME prevents sharing a menu term with a language term by renaming the nav menu before its creation |
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* to avoid http://core.trac.wordpress.org/ticket/24802 |
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* and http://wordpress.org/support/topic/all-connection-between-elements-lost |
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* |
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* @since 1.1.3 |
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* |
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* @param string $name term name |
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* @param string $taxonomy |
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* @return string modified (nav menu) term name if necessary |
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*/ |
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function pre_insert_term($name, $taxonomy) { |
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return ('nav_menu' == $taxonomy && in_array($name, $this->model->get_languages_list(array('fields' => 'name')))) ? $name .= '-menu' : $name; |
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} |
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} |
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|
