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);
}
