core/mod/menu.php

<?php

require_once('include/menu.php');
require_once('include/identity.php');

function menu_init(&$a) {
	if (array_key_exists('sys', $_REQUEST) && $_REQUEST['sys'] && is_site_admin()) {
		$sys = get_sys_channel();
		if ($sys && intval($sys['channel_id'])) {
			$a->is_sys = true;
		}
	}
}

function menu_post(&$a) {

	$uid = local_channel();

	if(array_key_exists('sys', $_REQUEST) && $_REQUEST['sys'] && is_site_admin()) {
		$sys = get_sys_channel();
		$uid = intval($sys['channel_id']);
		$a->is_sys = true;
	}

	if(! $uid)
		return;

	$_REQUEST['menu_channel_id'] = $uid;

	if($_REQUEST['menu_bookmark'])
		$_REQUEST['menu_flags'] |= MENU_BOOKMARK;
	if($_REQUEST['menu_system'])
		$_REQUEST['menu_flags'] |= MENU_SYSTEM;

	$menu_id = ((argc() > 1) ? intval(argv(1)) : 0);
	if($menu_id) {
		$_REQUEST['menu_id'] = intval(argv(1));
		$r = menu_edit($_REQUEST);
		if($r) {
			//info( t('Menu updated.') . EOL);
			goaway(z_root() . '/mitem/' . $menu_id . (($a->is_sys) ? '?f=&sys=1' : '')); 
		}
		else
			notice( t('Unable to update menu.'). EOL);
	}
	else {
		$r = menu_create($_REQUEST);
			if($r) {
			//info( t('Menu created.') . EOL);
			goaway(z_root() . '/mitem/' . $r . (($a->is_sys) ? '?f=&sys=1' : '')); 
		}
		else
			notice( t('Unable to create menu.'). EOL);

	}
}


function menu_content(&$a) {

	$uid = local_channel();

	if ($a->is_sys && is_site_admin()) {
		$sys = get_sys_channel();
		$uid = intval($sys['channel_id']);
	}

	if(! $uid) {
		notice( t('Permission denied.') . EOL);
		return '';
	}

	if(argc() == 1) {



		// list menus
		$x = menu_list($uid);
		if($x) {
			for($y = 0; $y < count($x); $y ++) {
				$m = menu_fetch($x[$y]['menu_name'],$uid,get_observer_hash());
				if($m)
					$x[$y]['element'] = '[element]' . base64url_encode(json_encode(menu_element($m))) . '[/element]';
				$x[$y]['bookmark'] = (($x[$y]['menu_flags'] & MENU_BOOKMARK) ? true : false);
			}
		}

		$create = replace_macros(get_markup_template('menuedit.tpl'), array(
			'$menu_name' => array('menu_name', t('Menu Name'), '', t('Unique name (not visible on webpage) - required'), '*'),
			'$menu_desc' => array('menu_desc', t('Menu Title'), '', t('Visible on webpage - leave empty for no title'), ''),
			'$menu_bookmark' => array('menu_bookmark', t('Allow Bookmarks'), 0 , t('Menu may be used to store saved bookmarks'), array(t('No'), t('Yes'))),
			'$submit' => t('Submit and proceed'),
			'$sys' => $a->is_sys,
			'$display' => 'none'
		));

		$o = replace_macros(get_markup_template('menulist.tpl'),array(
			'$title' => t('Menus'),
			'$create' => $create,
			'$menus' => $x,
			'$nametitle' => t('Menu Name'),
			'$desctitle' => t('Menu Title'),
			'$edit' => t('Edit'),
			'$drop' => t('Drop'),
			'$created' => t('Created'),
			'$edited' => t('Edited'),
			'$new' => t('New'),
			'$bmark' => t('Bookmarks allowed'),
			'$hintnew' => t('Create'),
			'$hintdrop' => t('Delete this menu'),
			'$hintcontent' => t('Edit menu contents'),
			'$hintedit' => t('Edit this menu'),
			'$sys' => $a->is_sys
		));

		return $o;

	}

	if(argc() > 1) {
		if(intval(argv(1))) {

			if(argc() == 3 && argv(2) == 'drop') {
				$r = menu_delete_id(intval(argv(1)),$uid);
				if(!$r)
					notice( t('Menu could not be deleted.'). EOL);

				goaway(z_root() . '/menu' . (($a->is_sys) ? '?f=&sys=1' : ''));
			}

			$m = menu_fetch_id(intval(argv(1)),$uid);

			if(! $m) {
				notice( t('Menu not found.') . EOL);
				return '';
			}

			$o = replace_macros(get_markup_template('menuedit.tpl'), array(
				'$header' => t('Edit Menu'),
				'$menu_id' => intval(argv(1)),
				'$hintedit' => t('Add or remove entries to this menu'),
				'$editcontents' => t('Edit menu contents'),
				'$menu_name' => array('menu_name', t('Menu name'), $m['menu_name'], t('Must be unique, only seen by you'), '*'),
				'$menu_desc' => array('menu_desc', t('Menu title'), $m['menu_desc'], t('Menu title as seen by others'), ''),
				'$menu_bookmark' => array('menu_bookmark', t('Allow bookmarks'), (($m['menu_flags'] & MENU_BOOKMARK) ? 1 : 0), t('Menu may be used to store saved bookmarks'), array(t('No'), t('Yes'))),
				'$menu_system' => (($m['menu_flags'] & MENU_SYSTEM) ? 1 : 0),
				'$submit' => t('Submit and proceed')
			));

			return $o;

		}
		else {
			notice( t('Not found.') . EOL);
			return;
		}
	}

}