<?php

/**

 * Build Administration Menu.

 *

 * @package WordPress

 * @subpackage Administration

 */

if ( is_network_admin() )

	do_action('_network_admin_menu');

elseif ( is_user_admin() )

	do_action('_user_admin_menu');

else

	do_action('_admin_menu');

// Create list of page plugin hook names.

foreach ($menu as $menu_page) {

	if ( false !== $pos = strpos($menu_page[2], '?') ) {

		// Handle post_type=post|page|foo pages.

		$hook_name = substr($menu_page[2], 0, $pos);

		$hook_args = substr($menu_page[2], $pos + 1);

		wp_parse_str($hook_args, $hook_args);

		// Set the hook name to be the post type.

		if ( isset($hook_args['post_type']) )

			$hook_name = $hook_args['post_type'];

		else

			$hook_name = basename($hook_name, '.php');

		unset($hook_args);

	} else {

		$hook_name = basename($menu_page[2], '.php');

	}

	$hook_name = sanitize_title($hook_name);

	if ( isset($compat[$hook_name]) )

		$hook_name = $compat[$hook_name];

	elseif ( !$hook_name )

		continue;

	$admin_page_hooks[$menu_page[2]] = $hook_name;

}

unset($menu_page, $compat);

$_wp_submenu_nopriv = array();

$_wp_menu_nopriv = array();

// Loop over submenus and remove pages for which the user does not have privs.

foreach ( array( 'submenu' ) as $sub_loop ) {

	foreach ($$sub_loop as $parent => $sub) {

		foreach ($sub as $index => $data) {

			if ( ! current_user_can($data[1]) ) {

				unset(${$sub_loop}[$parent][$index]);

				$_wp_submenu_nopriv[$parent][$data[2]] = true;

			}

		}

		unset($index, $data);

		if ( empty(${$sub_loop}[$parent]) )

			unset(${$sub_loop}[$parent]);

	}

	unset($sub, $parent);

}

unset($sub_loop);

// Loop over the top-level menu.

// Menus for which the original parent is not accessible due to lack of privs will have the next

// submenu in line be assigned as the new menu parent.

foreach ( $menu as $id => $data ) {

	if ( empty($submenu[$data[2]]) )

		continue;

	$subs = $submenu[$data[2]];

	$first_sub = array_shift($subs);

	$old_parent = $data[2];

	$new_parent = $first_sub[2];

	// If the first submenu is not the same as the assigned parent,

	// make the first submenu the new parent.

	if ( $new_parent != $old_parent ) {

		$_wp_real_parent_file[$old_parent] = $new_parent;

		$menu[$id][2] = $new_parent;

		foreach ($submenu[$old_parent] as $index => $data) {

			$submenu[$new_parent][$index] = $submenu[$old_parent][$index];

			unset($submenu[$old_parent][$index]);

		}

		unset($submenu[$old_parent], $index);

		if ( isset($_wp_submenu_nopriv[$old_parent]) )

			$_wp_submenu_nopriv[$new_parent] = $_wp_submenu_nopriv[$old_parent];

	}

}

unset($id, $data, $subs, $first_sub, $old_parent, $new_parent);

if ( is_network_admin() )

	do_action('network_admin_menu', '');

elseif ( is_user_admin() )

	do_action('user_admin_menu', '');

else

	do_action('admin_menu', '');

// Remove menus that have no accessible submenus and require privs that the user does not have.

// Run re-parent loop again.

foreach ( $menu as $id => $data ) {

	if ( ! current_user_can($data[1]) )

		$_wp_menu_nopriv[$data[2]] = true;

	// If there is only one submenu and it is has same destination as the parent,

	// remove the submenu.

	if ( ! empty( $submenu[$data[2]] ) && 1 == count ( $submenu[$data[2]] ) ) {

		$subs = $submenu[$data[2]];

		$first_sub = array_shift($subs);

		if ( $data[2] == $first_sub[2] )

			unset( $submenu[$data[2]] );

	}

	// If submenu is empty...

	if ( empty($submenu[$data[2]]) ) {

		// And user doesn't have privs, remove menu.

		if ( isset( $_wp_menu_nopriv[$data[2]] ) ) {

			unset($menu[$id]);

		}

	}

}

unset($id, $data, $subs, $first_sub);

// Remove any duplicated separators

$separator_found = false;

foreach ( $menu as $id => $data ) {

	if ( 0 == strcmp('wp-menu-separator', $data[4] ) ) {

		if (false == $separator_found) {

			$separator_found = true;

		} else {

			unset($menu[$id]);

			$separator_found = false;

		}

	} else {

		$separator_found = false;

	}

}

unset($id, $data);

function add_cssclass($add, $class) {

	$class = empty($class) ? $add : $class .= ' ' . $add;

	return $class;

}

function add_menu_classes($menu) {

	$first = $lastorder = false;

	$i = 0;

	$mc = count($menu);

	foreach ( $menu as $order => $top ) {

		$i++;

		if ( 0 == $order ) { // dashboard is always shown/single

			$menu[0][4] = add_cssclass('menu-top-first', $top[4]);

			$lastorder = 0;

			continue;

		}

		if ( 0 === strpos($top[2], 'separator') ) { // if separator

			$first = true;

			$c = $menu[$lastorder][4];

			$menu[$lastorder][4] = add_cssclass('menu-top-last', $c);

			continue;

		}

		if ( $first ) {

			$c = $menu[$order][4];

			$menu[$order][4] = add_cssclass('menu-top-first', $c);

			$first = false;

		}

		if ( $mc == $i ) { // last item

			$c = $menu[$order][4];

			$menu[$order][4] = add_cssclass('menu-top-last', $c);

		}

		$lastorder = $order;

	}

	return apply_filters( 'add_menu_classes', $menu );

}

uksort($menu, "strnatcasecmp"); // make it all pretty

if ( apply_filters('custom_menu_order', false) ) {

	$menu_order = array();

	foreach ( $menu as $menu_item ) {

		$menu_order[] = $menu_item[2];

	}

	unset($menu_item);

	$default_menu_order = $menu_order;

	$menu_order = apply_filters('menu_order', $menu_order);

	$menu_order = array_flip($menu_order);

	$default_menu_order = array_flip($default_menu_order);

	function sort_menu($a, $b) {

		global $menu_order, $default_menu_order;

		$a = $a[2];

		$b = $b[2];

		if ( isset($menu_order[$a]) && !isset($menu_order[$b]) ) {

			return -1;

		} elseif ( !isset($menu_order[$a]) && isset($menu_order[$b]) ) {

			return 1;

		} elseif ( isset($menu_order[$a]) && isset($menu_order[$b]) ) {

			if ( $menu_order[$a] == $menu_order[$b] )

				return 0;

			return ($menu_order[$a] < $menu_order[$b]) ? -1 : 1;

		} else {

			return ($default_menu_order[$a] <= $default_menu_order[$b]) ? -1 : 1;

		}

	}

	usort($menu, 'sort_menu');

	unset($menu_order, $default_menu_order);

}

// Remove the last menu item if it is a separator.

$last_menu_key = array_keys( $menu );

$last_menu_key = array_pop( $last_menu_key );

if ( !empty( $menu ) && 'wp-menu-separator' == $menu[ $last_menu_key ][ 4 ] )

	unset( $menu[ $last_menu_key ] );

unset( $last_menu_key );

if ( !user_can_access_admin_page() ) {

	do_action('admin_page_access_denied');

	wp_die( __('You do not have sufficient permissions to access this page.') );

}

$menu = add_menu_classes($menu);