Source

Arzebiu aos Molhos / wp-admin / includes / menu.php

<?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 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);

// Remove any duplicated seperators
$seperator_found = false;
foreach ( $menu as $id => $data ) {
	if ( 0 == strcmp('wp-menu-separator', $data[4] ) ) {
		if (false == $seperator_found) {
			$seperator_found = true;
		} else {
			unset($menu[$id]);
			$seperator_found = false;
		}
	} else {
		$seperator_found = false;
	}
}
unset($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);
}

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);

?>
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