/**
* Displays a navigation menu.
*
* Optional $args contents:
*
* menu - The menu that is desired. Accepts (matching in order) id, slug, name. Defaults to blank.
* menu_class - CSS class to use for the ul element which forms the menu. Defaults to 'menu'.
* menu_id - The ID that is applied to the ul element which forms the menu. Defaults to the menu slug, incremented.
* container - Whether to wrap the ul, and what to wrap it with. Defaults to 'div'.
* container_class - the class that is applied to the container. Defaults to 'menu-{menu slug}-container'.
* container_id - The ID that is applied to the container. Defaults to blank.
* fallback_cb - If the menu doesn't exists, a callback function will fire. Defaults to 'nxt_page_menu'. Set to false for no fallback.
* before - Text before the link text.
* after - Text after the link text.
* link_before - Text before the link.
* link_after - Text after the link.
* echo - Whether to echo the menu or return it. Defaults to echo.
* depth - how many levels of the hierarchy are to be included. 0 means all. Defaults to 0.
* walker - allows a custom walker to be specified.
* theme_location - the location in the theme to be used. Must be registered with register_nav_menu() in order to be selectable by the user.
* items_wrap - How the list items should be wrapped. Defaults to a ul with an id and class. Uses printf() format with numbered placeholders.
*
* @since 3.0.0
*
* @param array $args Arguments
*/
function nxt_nav_menu($args = array())
{
static $menu_id_slugs = array();
$defaults = array('menu' => '', 'container' => 'div', 'container_class' => '', 'container_id' => '', 'menu_class' => 'menu', 'menu_id' => '', 'echo' => true, 'fallback_cb' => 'nxt_page_menu', 'before' => '', 'after' => '', 'link_before' => '', 'link_after' => '', 'items_wrap' => '<ul id="%1$s" class="%2$s">%3$s</ul>', 'depth' => 0, 'walker' => '', 'theme_location' => '');
$args = nxt_parse_args($args, $defaults);
$args = apply_filters('nxt_nav_menu_args', $args);
$args = (object) $args;
// Get the nav menu based on the requested menu
$menu = nxt_get_nav_menu_object($args->menu);
// Get the nav menu based on the theme_location
if (!$menu && $args->theme_location && ($locations = get_nav_menu_locations()) && isset($locations[$args->theme_location])) {
$menu = nxt_get_nav_menu_object($locations[$args->theme_location]);
}
// get the first menu that has items if we still can't find a menu
if (!$menu && !$args->theme_location) {
$menus = nxt_get_nav_menus();
foreach ($menus as $menu_maybe) {
if ($menu_items = nxt_get_nav_menu_items($menu_maybe->term_id)) {
$menu = $menu_maybe;
break;
}
}
}
// If the menu exists, get its items.
if ($menu && !is_nxt_error($menu) && !isset($menu_items)) {
$menu_items = nxt_get_nav_menu_items($menu->term_id);
}
// If no menu was found or if the menu has no items and no location was requested, call the fallback_cb if it exists
if ((!$menu || is_nxt_error($menu) || isset($menu_items) && empty($menu_items) && !$args->theme_location) && $args->fallback_cb && is_callable($args->fallback_cb)) {
return call_user_func($args->fallback_cb, (array) $args);
}
// If no fallback function was specified and the menu doesn't exists, bail.
if (!$menu || is_nxt_error($menu)) {
return false;
}
$nav_menu = $items = '';
$show_container = false;
if ($args->container) {
$allowed_tags = apply_filters('nxt_nav_menu_container_allowedtags', array('div', 'nav'));
if (in_array($args->container, $allowed_tags)) {
$show_container = true;
$class = $args->container_class ? ' class="' . esc_attr($args->container_class) . '"' : ' class="menu-' . $menu->slug . '-container"';
$id = $args->container_id ? ' id="' . esc_attr($args->container_id) . '"' : '';
$nav_menu .= '<' . $args->container . $id . $class . '>';
}
}
// Set up the $menu_item variables
_nxt_menu_item_classes_by_context($menu_items);
$sorted_menu_items = array();
foreach ((array) $menu_items as $key => $menu_item) {
$sorted_menu_items[$menu_item->menu_order] = $menu_item;
}
unset($menu_items);
$sorted_menu_items = apply_filters('nxt_nav_menu_objects', $sorted_menu_items, $args);
$items .= walk_nav_menu_tree($sorted_menu_items, $args->depth, $args);
unset($sorted_menu_items);
// Attributes
if (!empty($args->menu_id)) {
$wrap_id = $args->menu_id;
} else {
$wrap_id = 'menu-' . $menu->slug;
while (in_array($wrap_id, $menu_id_slugs)) {
if (preg_match('#-(\\d+)$#', $wrap_id, $matches)) {
$wrap_id = preg_replace('#-(\\d+)$#', '-' . ++$matches[1], $wrap_id);
} else {
$wrap_id = $wrap_id . '-1';
}
}
}
$menu_id_slugs[] = $wrap_id;
$wrap_class = $args->menu_class ? $args->menu_class : '';
// Allow plugins to hook into the menu to add their own <li>'s
$items = apply_filters('nxt_nav_menu_items', $items, $args);
$items = apply_filters("nxt_nav_menu_{$menu->slug}_items", $items, $args);
$nav_menu .= sprintf($args->items_wrap, esc_attr($wrap_id), esc_attr($wrap_class), $items);
unset($items);
if ($show_container) {
$nav_menu .= '</' . $args->container . '>';
}
$nav_menu = apply_filters('nxt_nav_menu', $nav_menu, $args);
if ($args->echo) {
echo $nav_menu;
} else {
return $nav_menu;
}
}
$messages[] = '<div id="message" class="error"><p>' . __('Please enter a valid menu name.') . '</p></div>';
$menu_title = $_menu_object->name;
}
if (!is_nxt_error($_menu_object)) {
$_nav_menu_selected_id = nxt_update_nav_menu_object($nav_menu_selected_id, array('menu-name' => $menu_title));
if (is_nxt_error($_nav_menu_selected_id)) {
$_menu_object = $_nav_menu_selected_id;
$messages[] = '<div id="message" class="error"><p>' . $_nav_menu_selected_id->get_error_message() . '</p></div>';
} else {
$_menu_object = nxt_get_nav_menu_object($_nav_menu_selected_id);
$nav_menu_selected_title = $_menu_object->name;
}
}
// Update menu items
if (!is_nxt_error($_menu_object)) {
$unsorted_menu_items = nxt_get_nav_menu_items($nav_menu_selected_id, array('orderby' => 'ID', 'output' => ARRAY_A, 'output_key' => 'ID', 'post_status' => 'draft,publish'));
$menu_items = array();
// Index menu items by db ID
foreach ($unsorted_menu_items as $_item) {
$menu_items[$_item->db_id] = $_item;
}
$post_fields = array('menu-item-db-id', 'menu-item-object-id', 'menu-item-object', 'menu-item-parent-id', 'menu-item-position', 'menu-item-type', 'menu-item-title', 'menu-item-url', 'menu-item-description', 'menu-item-attr-title', 'menu-item-target', 'menu-item-classes', 'menu-item-xfn');
nxt_defer_term_counting(true);
// Loop through all the menu items' POST variables
if (!empty($_POST['menu-item-db-id'])) {
foreach ((array) $_POST['menu-item-db-id'] as $_key => $k) {
// Menu item title can't be blank
if (empty($_POST['menu-item-title'][$_key])) {
continue;
}
$args = array();
/**
* Automatically add newly published page objects to menus with that as an option.
*
* @since 3.0.0
* @access private
*
* @param string $new_status The new status of the post object.
* @param string $old_status The old status of the post object.
* @param object $post The post object being transitioned from one status to another.
* @return void
*/
function _nxt_auto_add_pages_to_menu($new_status, $old_status, $post)
{
if ('publish' != $new_status || 'publish' == $old_status || 'page' != $post->post_type) {
return;
}
if (!empty($post->post_parent)) {
return;
}
$auto_add = get_option('nav_menu_options');
if (empty($auto_add) || !is_array($auto_add) || !isset($auto_add['auto_add'])) {
return;
}
$auto_add = $auto_add['auto_add'];
if (empty($auto_add) || !is_array($auto_add)) {
return;
}
$args = array('menu-item-object-id' => $post->ID, 'menu-item-object' => $post->post_type, 'menu-item-type' => 'post_type', 'menu-item-status' => 'publish');
foreach ($auto_add as $menu_id) {
$items = nxt_get_nav_menu_items($menu_id, array('post_status' => 'publish,draft'));
if (!is_array($items)) {
continue;
}
foreach ($items as $item) {
if ($post->ID == $item->object_id) {
continue 2;
}
}
nxt_update_nav_menu_item($menu_id, 0, $args);
}
}
function admin_main($data)
{
if (!$data) {
$data = array();
}
?>
<div class='level-operation' id='main-menu'>
<h2 class='sidebar-name'><?php
_e('Menu', 'membership');
?>
<span><a href='#remove' id='remove-menu' class='removelink' title='<?php
_e("Remove Menu from this rules area.", 'membership');
?>
'><?php
_e('Remove', 'membership');
?>
</a></span></h2>
<div class='inner-operation'>
<p><?php
_e('Select the Menu items to be covered by this rule by checking the box next to the relevant menu labels.', 'membership');
?>
</p>
<?php
$navs = nxt_get_nav_menus(array('orderby' => 'name'));
if (!empty($navs)) {
?>
<table cellspacing="0" class="widefat fixed">
<thead>
<tr>
<th style="" class="manage-column column-cb check-column" id="cb" scope="col"><input type="checkbox"></th>
<th style="" class="manage-column column-name" id="name" scope="col"><?php
_e('Menu / Item title', 'membership');
?>
</th>
</tr>
</thead>
<tfoot>
<tr>
<th style="" class="manage-column column-cb check-column" id="cb" scope="col"><input type="checkbox"></th>
<th style="" class="manage-column column-name" id="name" scope="col"><?php
_e('Menu / Item title', 'membership');
?>
</th>
</tr>
</tfoot>
<tbody>
<?php
foreach ($navs as $key => $nav) {
?>
<tr valign="middle" class="alternate" id="menu-<?php
echo $nav->term_id;
?>
-0">
<td class="column-name" colspan='2'>
<strong><?php
echo __('MENU', 'membership') . " - " . esc_html($nav->name);
?>
</strong>
</td>
</tr>
<?php
$items = nxt_get_nav_menu_items($nav->term_id);
if (!empty($items)) {
foreach ($items as $ikey => $item) {
?>
<tr valign="middle" class="alternate" id="menu-<?php
//echo $nav->term_id . '-';
echo $item->ID;
?>
">
<th class="check-column" scope="row">
<input type="checkbox" value="<?php
//echo $nav->term_id . '-';
echo $item->ID;
?>
" name="menu[]" <?php
if (in_array($item->ID, $data)) {
echo 'checked="checked"';
}
?>
>
</th>
<td class="column-name">
<strong> – <?php
if ($item->menu_item_parent != 0) {
echo "– ";
}
echo esc_html($item->title);
?>
</strong>
</td>
</tr>
<?php
}
}
}
?>
</tbody>
</table>
<?php
}
?>
</div>
</div>
<?php
}
/**
* Returns the menu formatted to edit.
*
* @since 3.0.0
*
* @param string $menu_id The ID of the menu to format.
* @return string|nxt_Error $output The menu formatted to edit or error object on failure.
*/
function nxt_get_nav_menu_to_edit($menu_id = 0)
{
$menu = nxt_get_nav_menu_object($menu_id);
// If the menu exists, get its items.
if (is_nav_menu($menu)) {
$menu_items = nxt_get_nav_menu_items($menu->term_id, array('post_status' => 'any'));
$result = '<div id="menu-instructions" class="post-body-plain';
$result .= !empty($menu_items) ? ' menu-instructions-inactive">' : '">';
$result .= '<p>' . __('Select menu items (pages, categories, links) from the boxes at left to begin building your custom menu.') . '</p>';
$result .= '</div>';
if (empty($menu_items)) {
return $result . ' <ul class="menu" id="menu-to-edit"> </ul>';
}
$walker_class_name = apply_filters('nxt_edit_nav_menu_walker', 'Walker_Nav_Menu_Edit', $menu_id);
if (class_exists($walker_class_name)) {
$walker = new $walker_class_name();
} else {
return new nxt_Error('menu_walker_not_exist', sprintf(__('The Walker class named <strong>%s</strong> does not exist.'), $walker_class_name));
}
$some_pending_menu_items = $some_invalid_menu_items = false;
foreach ((array) $menu_items as $menu_item) {
if (isset($menu_item->post_status) && 'draft' == $menu_item->post_status) {
$some_pending_menu_items = true;
}
if (!empty($menu_item->_invalid)) {
$some_invalid_menu_items = true;
}
}
if ($some_pending_menu_items) {
$result .= '<div class="updated inline"><p>' . __('Click Save Menu to make pending menu items public.') . '</p></div>';
}
if ($some_invalid_menu_items) {
$result .= '<div class="error inline"><p>' . __('There are some invalid menu items. Please check or delete them.') . '</p></div>';
}
$result .= '<ul class="menu" id="menu-to-edit"> ';
$result .= walk_nav_menu_tree(array_map('nxt_setup_nav_menu_item', $menu_items), 0, (object) array('walker' => $walker));
$result .= ' </ul> ';
return $result;
} elseif (is_nxt_error($menu)) {
return $menu;
}
}
