function pll_the_languages($args = '')
{
if (PLL_ADMIN) {
return '';
}
$switcher = new PLL_Switcher();
return $switcher->the_languages(PLL()->links, $args);
}
/**
* Template tag: displays the language switcher
*
* List of parameters accepted in $args:
*
* dropdown => displays a dropdown if set to 1, defaults to 0
* echo => echoes the the switcher if set to 1 ( default )
* hide_if_empty => hides languages with no posts ( or pages ) if set to 1 ( default )
* show_flags => shows flags if set to 1, defaults to 0
* show_names => shows languages names if set to 1 ( default )
* display_names_as => whether to display the language name or code. valid options are 'slug' and 'name'
* force_home => forces linking to the home page is set to 1, defaults to 0
* hide_if_no_translation => hides the link if there is no translation if set to 1, defaults to 0
* hide_current => hides the current language if set to 1, defaults to 0
* post_id => if not null, link to translations of post defined by post_id, defaults to null
* raw => set this to true to build your own custom language switcher, defaults to 0
*
* @since 0.5
*
* @param array $args optional
* @return null|string|array null if displaying, array if raw is requested, string otherwise
*/
function pll_the_languages($args = '')
{
if (PLL() instanceof PLL_Frontend) {
$switcher = new PLL_Switcher();
return $switcher->the_languages(PLL()->links, $args);
}
return '';
}
function pll_the_languages($args = '')
{
global $polylang;
if ($polylang instanceof PLL_Frontend && !empty($polylang->links)) {
$switcher = new PLL_Switcher();
return $switcher->the_languages($polylang->links, $args);
}
return '';
}
/**
* Splits the one item of backend in several items on frontend
* take care to menu_order as it is used later in wp_nav_menu
*
* @since 1.1.1
*
* @param array $items menu items
* @return array modified items
*/
public function wp_get_nav_menu_items($items)
{
if (doing_action('customize_register')) {
// needed since WP 4.3, doing_action available since WP 3.9
return $items;
}
// The customizer menus does not sort the items and we need them to be sorted before splitting the language switcher
usort($items, array($this, 'usort_menu_items'));
$new_items = array();
$offset = 0;
foreach ($items as $key => $item) {
if ($options = get_post_meta($item->ID, '_pll_menu_item', true)) {
$i = 0;
$switcher = new PLL_Switcher();
$args = array_merge(array('raw' => 1), $options);
$the_languages = $switcher->the_languages(PLL()->links, $args);
// parent item for dropdown
if (!empty($options['dropdown'])) {
$item->title = $options['show_flags'] && $options['show_names'] ? $this->curlang->flag . ' ' . esc_html($this->curlang->name) : ($options['show_flags'] ? $this->curlang->flag : esc_html($this->curlang->name));
$item->url = '';
$item->classes = array('pll-parent-menu-item');
$new_items[] = $item;
$offset++;
}
foreach ($the_languages as $lang) {
$lang_item = clone $item;
$lang_item->ID = $lang_item->ID . '-' . $lang['slug'];
// A unique ID
$lang_item->title = $options['show_flags'] && $options['show_names'] ? $lang['flag'] . '<span style="margin-left:0.3em;">' . esc_html($lang['name']) . '</span>' : ($options['show_flags'] ? $lang['flag'] : esc_html($lang['name']));
$lang_item->url = $lang['url'];
$lang_item->lang = $lang['locale'];
// Save this for use in nav_menu_link_attributes
$lang_item->classes = $lang['classes'];
$lang_item->menu_order += $offset + $i++;
if (!empty($options['dropdown'])) {
$lang_item->menu_item_parent = $item->db_id;
$lang_item->db_id = 0;
// to avoid recursion
}
$new_items[] = $lang_item;
}
$offset += $i - 1;
} else {
$item->menu_order += $offset;
$new_items[] = $item;
}
}
return $new_items;
}
public function wp_get_nav_menu_items($items)
{
if (doing_action('customize_register')) {
// needed since WP 4.3, doing_action available since WP 3.9
return $items;
}
// the customizer menus does not sort the items and we need them to be sorted before splitting the language switcher
usort($items, array($this, 'usort_menu_items'));
$new_items = array();
$offset = 0;
foreach ($items as $key => $item) {
if ($options = get_post_meta($item->ID, '_pll_menu_item', true)) {
$i = 0;
$switcher = new PLL_Switcher();
$args = array_merge(array('raw' => 1), $options);
$the_languages = $switcher->the_languages(PLL()->links, $args);
foreach ($the_languages as $lang) {
$lang_item = clone $item;
$lang_item->ID = $lang_item->ID . '-' . $lang['slug'];
// a unique ID
$lang_item->title = $options['show_flags'] && $options['show_names'] ? $lang['flag'] . ' ' . esc_html($lang['name']) : ($options['show_flags'] ? $lang['flag'] : esc_html($lang['name']));
$lang_item->url = $lang['url'];
$lang_item->lang = $lang['locale'];
// save this for use in nav_menu_link_attributes
$lang_item->classes = $lang['classes'];
$lang_item->menu_order += $offset + $i++;
$new_items[] = $lang_item;
}
$offset += $i - 1;
} else {
$item->menu_order += $offset;
$new_items[] = $item;
}
}
return $new_items;
}
function form($instance)
{
// default values
$instance = wp_parse_args((array) $instance, array_merge(array('title' => ''), PLL_Switcher::get_switcher_options('widget', 'default')));
// title
$title = sprintf('<p><label for="%1$s">%2$s</label><input class="widefat" id="%1$s" name="%3$s" type="text" value="%4$s" /></p>', $this->get_field_id('title'), __('Title:', 'polylang'), $this->get_field_name('title'), esc_attr($instance['title']));
$fields = '';
foreach (PLL_Switcher::get_switcher_options('widget') as $key => $str) {
$fields .= sprintf('<div class = "%5$s" %6$s><input type="checkbox" class="checkbox" id="%1$s" name="%2$s" %3$s/> <label for="%1$s">%4$s</label></div>', $this->get_field_id($key), $this->get_field_name($key), $instance[$key] ? 'checked="checked"' : '', esc_html($str), 'dropdown' == $key ? '' : 'no-dropdown-' . $this->id, 'dropdown' == $key || empty($instance['dropdown']) ? '' : 'style="display:none;"');
}
echo $title . '<p>' . $fields . '</p>';
// FIXME echoing script in form is not very clean
// but it does not work if enqueued properly :
// clicking save on a widget makes this code unreachable for the just saved widget (?!)
$this->admin_print_script();
}
public function admin_enqueue_scripts()
{
$screen = get_current_screen();
if ('nav-menus' != $screen->base) {
return;
}
$suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
wp_enqueue_script('pll_nav_menu', POLYLANG_URL . '/js/nav-menu' . $suffix . '.js', array('jquery'), POLYLANG_VERSION);
// the strings for the options
foreach (array_reverse(PLL_Switcher::get_switcher_options('menu', 'string')) as $str) {
$data['strings'][] = $str;
}
$data['strings'][] = __('Language switcher', 'polylang');
// the title
// get all language switcher menu items
$items = get_posts(array('numberposts' => -1, 'nopaging' => true, 'post_type' => 'nav_menu_item', 'fields' => 'ids', 'meta_key' => '_pll_menu_item'));
// the options values for the language switcher
$data['val'] = array();
foreach ($items as $item) {
$data['val'][$item] = get_post_meta($item, '_pll_menu_item', true);
}
// send all these data to javascript
wp_localize_script('pll_nav_menu', 'pll_data', $data);
}
/**
* @return string Menu HTML.
*/
public function alternate_versions_menu()
{
global $polylang;
$wpml_selector = $this->wpml_language_selector_html();
if ($wpml_selector) {
return $wpml_selector;
}
if (!class_exists('PLL_Switcher')) {
return '';
}
$switcher = new PLL_Switcher();
$languages = $switcher->the_languages($polylang->links, array('post_id' => $this->post->ID, 'echo' => false, 'hide_if_no_translation' => true, 'hide_current' => true));
return empty($languages) ? '' : html('ul class="alternate-languages"', $languages);
}
