conf.php

<!-- conf/config.php -->
... 

[I18n]

; This is the method for determining which language to show the
; current visitor. Options are: url (e.g., /fr/), subdomain
; (e.g., fr.example.com), http (uses Accept-Language header),
; or cookie.

negotiation_method = url

; Switch this to On if you have more than one Language
multilingual = On

...

Functions.php

<!-- apps/navigation/lib/Functions.php -->

<?php

/**
 * Print the site tree as an HTML list with the current
 * context open as sub-lists up to the first-level children
 * of the current page. The currently active page will have
 * the class `current` and parents will have the class
 * `parent`.
 *
 * Usage:
 *
 *     $n = new Navigation;
 *     $path = $n->path ($page->id);
 *     $path = ($path) ? $path : array ();
 *     navigation_print_context ($n->tree, $path);
 */
function navigation_print_context ($tree, $path) {
	echo '<ul>';
	foreach ($tree as $item) {
		if ($item->attr->id == $path[count ($path) - 1]) {
			printf ('<li class="current"><a href="/%s">%s</a>', $item->attr->id, $item->data);
			if (isset ($item->children)) {
				navigation_print_context ($item->children, $path);
			}
			echo '</li>';
		} elseif (in_array ($item->attr->id, $path)) {
			printf ('<li class="parent"><a href="/%s">%s</a>', $item->attr->id, $item->data);
			if (isset ($item->children)) {
				navigation_print_context ($item->children, $path);
			}
			echo '</li>';
		} else {
			printf ('<li><a href="/%s">%s</a></li>', $item->attr->id, $item->data);
		}
	}
	echo '</ul>';
}

/**
 * Print the full site tree as an HTML list.
 */
function navigation_print_level ($tree) {
	echo '<ul>';
	foreach ($tree as $item) {
		printf ('<li><a href="/%s">%s</a>', $item->attr->id, $item->data);
		if (isset ($item->children)) {
			navigation_print_level ($item->children);
		}
		echo '</li>';
	}
	echo '</ul>';
}

/**
 * Clears all cache keys for the navigation app.
 */
function navigation_clear_cache () {
	global $cache;
	$cache->delete ('_navigation_top');
	$cache->delete ('_c_navigation_map');
	$cache->delete ('_c_navigation_dropmenu');
}

/**
 * Returns a list of pages that are not in the navigation.
 */
function navigation_get_other_pages ($ids) {
	$pages = array ();
	$res = DB::fetch ('select id, title, menu_title from #prefix#webpage where access = "public"');
	foreach ($res as $p) {
		if (in_array ($p->id, $ids)) {
			// skip if in tree
			continue;
		}
		if (! empty ($p->menu_title)) {
			$pages[$p->id] = $p->menu_title;
		} else {
			$pages[$p->id] = $p->title;
		}
	}
	return $pages;
}

function navigation_print_admin_tree ($tree, $tree_root=true) {
	echo ($tree_root) ?'<ul class="tdd-tree">' : "<ul>";
	foreach ($tree as $item) {
		printf ('<li id="%s"><i class="%s"></i> %s', $item->attr->id, $item->attr->classname,  $item->data);
		if (isset ($item->children)) {
			navigation_print_admin_tree ($item->children, false);
		}
		echo '</li>';
	}
	echo '</ul>';
}

function navigation_add_class($navString, $pageId, $css){
	$out = str_replace (
		sprintf ('<li><a href="/%s">', $pageId),
		sprintf ('<li class="%s"><a href="/%s">', $css, $pageId),
		$navString
	);
	return $out;
}

function navigation_add_language_path($navString, $language, $languages){
	$out = str_replace (
		'href="/',
		'href="/' . $language . '/',
		$navString
	);
	$out = preg_replace (
		'#"/' . $language . '/(' . join ('|', array_keys ($languages)) . ')"#',
		'"/\1"',
		$out
	);
	return $out;
}


?>

page.php

<!-- apps/admin/handlers/page.php -->

<?php

/**
 * Renders a web page from the webpage table.
 * This is the default handler in Elefant,
 * allowing it to work as a web page-serving
 * CMS by default.
 */

// determine page id
$id = count ($this->params)
    ? $this->params[
            (conf ('General', 'page_url_style') === 'flat')
                ? 0
                : count ($this->params) - 1
        ]
    : 'index';

// check if cached
$res = $cache->get ('_admin_page_' . $id);
if ($res) {
    $page = (is_object ($res)) ? $res : unserialize ($res);

	// show admin edit buttons
	if (User::is_valid () && User::is ('admin')) {
		$lock = new Lock ('Webpage', $id);
		$page->locked = $lock->exists ();
		echo $tpl->render ('admin/editable', $page);
	}

	// output the page body
	echo $page->body;
	return;
}

// get it from the database
$wp = new Webpage ($id);

// page not found
if ($wp->error) {
	echo $this->error (404, i18n_get ('Page not found'), '<p>' . i18n_get ('Hmm, we can\'t seem to find the page you wanted at the moment.') . '</p>');
	return;
}

// access control
if ($wp->access !== 'public' && ! User::is ('admin')) {
	if (! User::require_login ()) {
		$page->title = i18n_get ('Login required');
		echo $this->run ('user/login');
		return;
	}
	if (! User::access ($wp->access)) {
		$page->title = i18n_get ('Login required');
		echo $this->run ('user/login');
		return;
	}
}


// set the page properties
$page->id = $id;
$page->title = $wp->title;
$page->_menu_title = $wp->menu_title;
$page->_window_title = $wp->window_title;
$page->description = $wp->description;
$page->keywords = $wp->keywords;
$page->layout = $wp->layout;
$page->head = $wp->head;

// show admin edit buttons
if (User::is_valid () && User::is('admin')) {
	$lock = new Lock ('Webpage', $id);
	$page->locked = $lock->exists ();
	echo $tpl->render ('admin/editable', $page);
}

// execute any embedded includes
$out = $tpl->run_includes ($wp->body);

if ($wp->access == 'public' && $out === $wp->body) {
	// public page, no includes, cacheable.
	$page->body = $out;
	$cache->set ('_admin_page_' . $id, serialize ($page));
}

// output the page body
echo $out;

?>

section.php

<!-- apps/navigation/handlers/section.php -->

<?php

/**
 * Displays a single section of the navigation as a
 * bulleted list, with `class="current"` added to
 * the current page's `<li>` element for custom styling.
 */

global $i18n;

require_once ('apps/navigation/lib/Functions.php');

$n = new Navigation;
$section = $n->node ($data['section']);

//ob_start ();

$out = '<ul>';

if (conf ('I18n', 'multilingual') && $data['section'] === $i18n->language) {
	$out .= sprintf ('<li><a href="/%s">%s</a></li>', $section->attr->id, $section->data);
}

if (is_array ($section->children)) {
	foreach ($section->children as $item) {
		$path = (conf ('General', 'page_url_style') === "flat") ? $item->attr->id : implode ("/",array_slice( $n->path ($item->attr->id), 1));
		$out .= sprintf ('<li><a href="/%s">%s</a></li>', $path, $item->data);
	}
}
$out .= '</ul>';

//$out = ob_get_clean ();
$out = navigation_add_class($out, $page->id, "current");

if($data['setActiveClass']){
	foreach ( array_slice( $n->path ($page->id), 1) as $active) {
		$out = navigation_add_class($out, $active, "active");
	}
}

if ($i18n->url_includes_lang) {
	$out = navigation_add_language_path ($out, $i18n->language, $i18n->languages);
}

echo $out;
	
?>

top.php

<!-- apps/navigation/handlers/top.php -->

<?php
 
/**
 * Displays the top-level navigation as a bulleted list,
 * with `class="current"` added to the current page's
 * `<li>` element for custom styling.
 */
 
 
 
global $i18n;

if (conf ('I18n', 'multilingual')) {
  $this->run ('navigation/section?section='.$i18n->language);
  return;
}

require_once ('apps/navigation/lib/Functions.php');
 
$res = $cache->get ('_navigation_top');
if ($res) {
	
	$out = navigation_add_class($res, $page->id, "current");
	
	if($data['setActiveClass']){
		foreach ( array_slice( $n->path ($page->id), 1) as $active) {
			$out = navigation_add_class($out, $active, "active");
		}
	}

	
	if ($i18n->url_includes_lang) {
		$out = navigation_add_language_path ($out, $i18n->language, $i18n->languages);
	}

	echo $out;
	return;
}
 
$n = new Navigation;
 
$out = '<ul>';
foreach ($n->tree as $item) {
	$out .= sprintf ('<li><a href="/%s">%s</a></li>', $item->attr->id, $item->data);
}
$out .= '</ul>';
 
$cache->set ('_navigation_top', $out);

$out = navigation_add_class($out, $i18n->url_includes_lang.$page->id, "current");

if($data['setActiveClass']){
	foreach ( array_slice( $n->path ($page->id), 1) as $active) {
		$out = navigation_add_class($out, $active, "active");
	}
}

if ($i18n->url_includes_lang) {
	$out = navigation_add_language_path ($out, $i18n->language, $i18n->languages);
}

echo $out;
 
?>