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// Load all the nav menu interface functions
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require_once( ABSPATH . 'wp-admin/includes/nav-menu.php' );
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if ( ! current_theme_supports( 'nav-menus' ) && ! current_theme_supports( 'widgets' ) )
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if ( ! current_theme_supports( 'menus' ) && ! current_theme_supports( 'widgets' ) )
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wp_die( __( 'Your theme does not support navigation menus or widgets.' ) );
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// Permissions Check
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// Remove this menu from any locations.
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$locations = get_theme_mod( 'nav_menu_locations' );
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foreach ( $locations as $location => $menu_id ) {
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foreach ( (array) $locations as $location => $menu_id ) {
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if ( $menu_id == $nav_menu_selected_id )
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$locations[ $location ] = 0;
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if ( 0 == $nav_menu_selected_id ) {
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$new_menu_title = esc_html( $_POST['menu-name'] );
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$new_menu_title = trim( esc_html( $_POST['menu-name'] ) );
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if ( $new_menu_title ) {
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$_nav_menu_selected_id = wp_update_nav_menu_object( 0, array('menu-name' => $new_menu_title) );
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$_menu_object = wp_get_nav_menu_object( $nav_menu_selected_id );
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$menu_title = trim( esc_html( $_POST['menu-name'] ) );
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if ( ! $menu_title ) {
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$messages[] = '<div id="message" class="error"><p>' . __('Please enter a valid menu name.') . '</p></div>';
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$menu_title = $_menu_object->name;
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if ( ! is_wp_error( $_menu_object ) ) {
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$_nav_menu_selected_id = wp_update_nav_menu_object( $nav_menu_selected_id, array( 'menu-name' => $_POST['menu-name'] ) );
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$_nav_menu_selected_id = wp_update_nav_menu_object( $nav_menu_selected_id, array( 'menu-name' => $menu_title ) );
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if ( is_wp_error( $_nav_menu_selected_id ) ) {
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$_menu_object = $_nav_menu_selected_id;
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$messages[] = '<div id="message" class="error"><p>' . $_nav_menu_selected_id->get_error_message() . '</p></div>';
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// Update menu items
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if ( ! is_wp_error( $_menu_object ) ) {
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$unsorted_menu_items = wp_get_nav_menu_items( $nav_menu_selected_id, array('orderby' => 'ID', 'output' => ARRAY_A, 'output_key' => 'ID', 'post_status' => 'draft,publish') );
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$unsorted_menu_items = wp_get_nav_menu_items( $nav_menu_selected_id, array('orderby' => 'ID', 'output' => ARRAY_A, 'output_key' => 'ID', 'post_status' => 'draft,pending,publish') );
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$menu_items = array();
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// Index menu items by db ID
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foreach( $unsorted_menu_items as $_item )
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$menu_items[$_item->db_id] = $_item;
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$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' );
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$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-status', 'menu-item-target', 'menu-item-classes', 'menu-item-xfn' );
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wp_defer_term_counting(true);
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// Loop through all the menu items' POST variables
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if ( ! empty( $_POST['menu-item-db-id'] ) ) {
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$nav_menus[$key]->truncated_name = $_nav_menu->truncated_name;
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// The theme supports menus
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if ( current_theme_supports('nav-menus') ) {
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// The theme does not support menus but supports widgets
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} elseif ( current_theme_supports('widgets') ) {
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$messages[] = '<div id="message" class="error"><p>' . __('The current theme does not natively support menus, but you can use the “Custom Menu” widget to add any menus you create here to the theme’s sidebar.') . '</p></div>';
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// Ensure the user will be able to scroll horizontally
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// by adding a class for the max menu depth.
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global $_wp_nav_menu_max_depth;
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$_wp_nav_menu_max_depth = 0;
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// Calling wp_get_nav_menu_to_edit generates $_wp_nav_menu_max_depth
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if ( is_nav_menu( $nav_menu_selected_id ) )
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$edit_markup = wp_get_nav_menu_to_edit( $nav_menu_selected_id );
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function wp_nav_menu_max_depth() {
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global $_wp_nav_menu_max_depth;
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return "menu-max-depth-$_wp_nav_menu_max_depth";
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add_action('admin_body_class','wp_nav_menu_max_depth');
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wp_initial_nav_menu_meta_boxes();
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if ( ! current_theme_supports( 'menus' ) && ! wp_get_nav_menus() )
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echo '<div id="message" class="updated"><p>' . __('The current theme does not natively support menus, but you can use the “Custom Menu” widget to add any menus you create here to the theme’s sidebar.') . '</p></div>';
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$help = '<p>' . __('This feature is new in version 3.0; to use a custom menu in place of your theme’s default menus, support for this feature must be registered in the theme’s functions.php file. If your theme does not support the custom menus feature yet (the new default theme, Twenty Ten, does), you can learn about adding support yourself by following the below link.') . '</p>';
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$help .= '<p>' . __('You can create custom menus for your site. These menus may contain links to pages, categories, custom links or other content types (use the Screen Options tab to decide which ones to show on the screen). You can specify a different navigation label for a menu item as well as other attributes. You can create multiple menus. If your theme includes more than one menu, you can choose which custom menu to associate with each. You can also use custom menus in conjunction with the Custom Menus widget.') . '</p>';
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$help .= '<p>' . __('To create a new custom menu, click on the + tab, give the menu a name, and click Create Menu. Next, add menu items from the appropriate boxes. You’ll be able to edit the information for each menu item, and can drag and drop to put them in order. You can also drag a menu item a little to the right to make it a submenu, to create menus with hierarchy. You’ll see when the position of the drop target shifts over to create the nested placement. Don’t forget to click Save when you’re finished.') . '</p>';
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<div id="post-body">
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<div id="post-body-content">
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if ( is_nav_menu( $nav_menu_selected_id ) ) :
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$edit_markup = wp_get_nav_menu_to_edit( $nav_menu_selected_id );
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if ( ! is_wp_error( $edit_markup ) ) :
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if ( isset( $edit_markup ) ) {
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if ( ! is_wp_error( $edit_markup ) )
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echo $edit_markup;
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elseif ( empty( $nav_menu_selected_id ) ) :
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} else if ( empty( $nav_menu_selected_id ) ) {
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echo '<div class="post-body-plain">';
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echo '<p>' . __('To create a custom menu, give it a name above and click Create Menu. Then choose items like pages, categories or custom links from the left column to add to this menu.') . '</p>';
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echo '<p>' . __('After you have added your items, drag and drop to put them in the order you want. You can also click each item to reveal additional configuration options.') . '</p>';
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echo '<p>' . __('When you have finished building your custom menu, make sure you click the Save Menu button.') . '</p>';
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</div><!-- /#post-body-content -->
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</div><!-- /#post-body -->
added
removed
wp-admin/nav-menus.php
