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/wp-admin/nav-menus.php

https://bitbucket.org/devbctph/futura_wp
PHP | 855 lines | 636 code | 108 blank | 111 comment | 154 complexity | 575b6f07fe02753e8aa1b368339e2324 MD5 | raw file
  1<?php
  2/**
  3 * WordPress Administration for Navigation Menus
  4 * Interface functions
  5 *
  6 * @version 2.0.0
  7 *
  8 * @package WordPress
  9 * @subpackage Administration
 10 */
 11
 12/** Load WordPress Administration Bootstrap */
 13require_once( dirname( __FILE__ ) . '/admin.php' );
 14
 15// Load all the nav menu interface functions
 16require_once( ABSPATH . 'wp-admin/includes/nav-menu.php' );
 17
 18if ( ! current_theme_supports( 'menus' ) && ! current_theme_supports( 'widgets' ) )
 19	wp_die( __( 'Your theme does not support navigation menus or widgets.' ) );
 20
 21// Permissions Check
 22if ( ! current_user_can( 'edit_theme_options' ) ) {
 23	wp_die(
 24		'<h1>' . __( 'Cheatin&#8217; uh?' ) . '</h1>' .
 25		'<p>' . __( 'Sorry, you are not allowed to edit theme options on this site.' ) . '</p>',
 26		403
 27	);
 28}
 29
 30wp_enqueue_script( 'nav-menu' );
 31
 32if ( wp_is_mobile() )
 33	wp_enqueue_script( 'jquery-touch-punch' );
 34
 35// Container for any messages displayed to the user
 36$messages = array();
 37
 38// Container that stores the name of the active menu
 39$nav_menu_selected_title = '';
 40
 41// The menu id of the current menu being edited
 42$nav_menu_selected_id = isset( $_REQUEST['menu'] ) ? (int) $_REQUEST['menu'] : 0;
 43
 44// Get existing menu locations assignments
 45$locations = get_registered_nav_menus();
 46$menu_locations = get_nav_menu_locations();
 47$num_locations = count( array_keys( $locations ) );
 48
 49// Allowed actions: add, update, delete
 50$action = isset( $_REQUEST['action'] ) ? $_REQUEST['action'] : 'edit';
 51
 52/*
 53 * If a JSON blob of navigation menu data is found, expand it and inject it
 54 * into `$_POST` to avoid PHP `max_input_vars` limitations. See #14134.
 55 */
 56_wp_expand_nav_menu_post_data();
 57
 58switch ( $action ) {
 59	case 'add-menu-item':
 60		check_admin_referer( 'add-menu_item', 'menu-settings-column-nonce' );
 61		if ( isset( $_REQUEST['nav-menu-locations'] ) )
 62			set_theme_mod( 'nav_menu_locations', array_map( 'absint', $_REQUEST['menu-locations'] ) );
 63		elseif ( isset( $_REQUEST['menu-item'] ) )
 64			wp_save_nav_menu_items( $nav_menu_selected_id, $_REQUEST['menu-item'] );
 65		break;
 66	case 'move-down-menu-item' :
 67
 68		// Moving down a menu item is the same as moving up the next in order.
 69		check_admin_referer( 'move-menu_item' );
 70		$menu_item_id = isset( $_REQUEST['menu-item'] ) ? (int) $_REQUEST['menu-item'] : 0;
 71		if ( is_nav_menu_item( $menu_item_id ) ) {
 72			$menus = isset( $_REQUEST['menu'] ) ? array( (int) $_REQUEST['menu'] ) : wp_get_object_terms( $menu_item_id, 'nav_menu', array( 'fields' => 'ids' ) );
 73			if ( ! is_wp_error( $menus ) && ! empty( $menus[0] ) ) {
 74				$menu_id = (int) $menus[0];
 75				$ordered_menu_items = wp_get_nav_menu_items( $menu_id );
 76				$menu_item_data = (array) wp_setup_nav_menu_item( get_post( $menu_item_id ) );
 77
 78				// Set up the data we need in one pass through the array of menu items.
 79				$dbids_to_orders = array();
 80				$orders_to_dbids = array();
 81				foreach ( (array) $ordered_menu_items as $ordered_menu_item_object ) {
 82					if ( isset( $ordered_menu_item_object->ID ) ) {
 83						if ( isset( $ordered_menu_item_object->menu_order ) ) {
 84							$dbids_to_orders[$ordered_menu_item_object->ID] = $ordered_menu_item_object->menu_order;
 85							$orders_to_dbids[$ordered_menu_item_object->menu_order] = $ordered_menu_item_object->ID;
 86						}
 87					}
 88				}
 89
 90				// Get next in order.
 91				if (
 92					isset( $orders_to_dbids[$dbids_to_orders[$menu_item_id] + 1] )
 93				) {
 94					$next_item_id = $orders_to_dbids[$dbids_to_orders[$menu_item_id] + 1];
 95					$next_item_data = (array) wp_setup_nav_menu_item( get_post( $next_item_id ) );
 96
 97					// If not siblings of same parent, bubble menu item up but keep order.
 98					if (
 99						! empty( $menu_item_data['menu_item_parent'] ) &&
100						(
101							empty( $next_item_data['menu_item_parent'] ) ||
102							$next_item_data['menu_item_parent'] != $menu_item_data['menu_item_parent']
103						)
104					) {
105
106						$parent_db_id = in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids ) ? (int) $menu_item_data['menu_item_parent'] : 0;
107
108						$parent_object = wp_setup_nav_menu_item( get_post( $parent_db_id ) );
109
110						if ( ! is_wp_error( $parent_object ) ) {
111							$parent_data = (array) $parent_object;
112							$menu_item_data['menu_item_parent'] = $parent_data['menu_item_parent'];
113							update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
114
115						}
116
117					// Make menu item a child of its next sibling.
118					} else {
119						$next_item_data['menu_order'] = $next_item_data['menu_order'] - 1;
120						$menu_item_data['menu_order'] = $menu_item_data['menu_order'] + 1;
121
122						$menu_item_data['menu_item_parent'] = $next_item_data['ID'];
123						update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
124
125						wp_update_post($menu_item_data);
126						wp_update_post($next_item_data);
127					}
128
129				// The item is last but still has a parent, so bubble up.
130				} elseif (
131					! empty( $menu_item_data['menu_item_parent'] ) &&
132					in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids )
133				) {
134					$menu_item_data['menu_item_parent'] = (int) get_post_meta( $menu_item_data['menu_item_parent'], '_menu_item_menu_item_parent', true);
135					update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
136				}
137			}
138		}
139
140		break;
141	case 'move-up-menu-item' :
142		check_admin_referer( 'move-menu_item' );
143		$menu_item_id = isset( $_REQUEST['menu-item'] ) ? (int) $_REQUEST['menu-item'] : 0;
144		if ( is_nav_menu_item( $menu_item_id ) ) {
145			$menus = isset( $_REQUEST['menu'] ) ? array( (int) $_REQUEST['menu'] ) : wp_get_object_terms( $menu_item_id, 'nav_menu', array( 'fields' => 'ids' ) );
146			if ( ! is_wp_error( $menus ) && ! empty( $menus[0] ) ) {
147				$menu_id = (int) $menus[0];
148				$ordered_menu_items = wp_get_nav_menu_items( $menu_id );
149				$menu_item_data = (array) wp_setup_nav_menu_item( get_post( $menu_item_id ) );
150
151				// Set up the data we need in one pass through the array of menu items.
152				$dbids_to_orders = array();
153				$orders_to_dbids = array();
154				foreach ( (array) $ordered_menu_items as $ordered_menu_item_object ) {
155					if ( isset( $ordered_menu_item_object->ID ) ) {
156						if ( isset( $ordered_menu_item_object->menu_order ) ) {
157							$dbids_to_orders[$ordered_menu_item_object->ID] = $ordered_menu_item_object->menu_order;
158							$orders_to_dbids[$ordered_menu_item_object->menu_order] = $ordered_menu_item_object->ID;
159						}
160					}
161				}
162
163				// If this menu item is not first.
164				if ( ! empty( $dbids_to_orders[$menu_item_id] ) && ! empty( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) ) {
165
166					// If this menu item is a child of the previous.
167					if (
168						! empty( $menu_item_data['menu_item_parent'] ) &&
169						in_array( $menu_item_data['menu_item_parent'], array_keys( $dbids_to_orders ) ) &&
170						isset( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) &&
171						( $menu_item_data['menu_item_parent'] == $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] )
172					) {
173						$parent_db_id = in_array( $menu_item_data['menu_item_parent'], $orders_to_dbids ) ? (int) $menu_item_data['menu_item_parent'] : 0;
174						$parent_object = wp_setup_nav_menu_item( get_post( $parent_db_id ) );
175
176						if ( ! is_wp_error( $parent_object ) ) {
177							$parent_data = (array) $parent_object;
178
179							/*
180							 * If there is something before the parent and parent a child of it,
181							 * make menu item a child also of it.
182							 */
183							if (
184								! empty( $dbids_to_orders[$parent_db_id] ) &&
185								! empty( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1] ) &&
186								! empty( $parent_data['menu_item_parent'] )
187							) {
188								$menu_item_data['menu_item_parent'] = $parent_data['menu_item_parent'];
189
190							/*
191							 * Else if there is something before parent and parent not a child of it,
192							 * make menu item a child of that something's parent
193							 */
194							} elseif (
195								! empty( $dbids_to_orders[$parent_db_id] ) &&
196								! empty( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1] )
197							) {
198								$_possible_parent_id = (int) get_post_meta( $orders_to_dbids[$dbids_to_orders[$parent_db_id] - 1], '_menu_item_menu_item_parent', true);
199								if ( in_array( $_possible_parent_id, array_keys( $dbids_to_orders ) ) )
200									$menu_item_data['menu_item_parent'] = $_possible_parent_id;
201								else
202									$menu_item_data['menu_item_parent'] = 0;
203
204							// Else there isn't something before the parent.
205							} else {
206								$menu_item_data['menu_item_parent'] = 0;
207							}
208
209							// Set former parent's [menu_order] to that of menu-item's.
210							$parent_data['menu_order'] = $parent_data['menu_order'] + 1;
211
212							// Set menu-item's [menu_order] to that of former parent.
213							$menu_item_data['menu_order'] = $menu_item_data['menu_order'] - 1;
214
215							// Save changes.
216							update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
217							wp_update_post($menu_item_data);
218							wp_update_post($parent_data);
219						}
220
221					// Else this menu item is not a child of the previous.
222					} elseif (
223						empty( $menu_item_data['menu_order'] ) ||
224						empty( $menu_item_data['menu_item_parent'] ) ||
225						! in_array( $menu_item_data['menu_item_parent'], array_keys( $dbids_to_orders ) ) ||
226						empty( $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] ) ||
227						$orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1] != $menu_item_data['menu_item_parent']
228					) {
229						// Just make it a child of the previous; keep the order.
230						$menu_item_data['menu_item_parent'] = (int) $orders_to_dbids[$dbids_to_orders[$menu_item_id] - 1];
231						update_post_meta( $menu_item_data['ID'], '_menu_item_menu_item_parent', (int) $menu_item_data['menu_item_parent'] );
232						wp_update_post($menu_item_data);
233					}
234				}
235			}
236		}
237		break;
238
239	case 'delete-menu-item':
240		$menu_item_id = (int) $_REQUEST['menu-item'];
241
242		check_admin_referer( 'delete-menu_item_' . $menu_item_id );
243
244		if ( is_nav_menu_item( $menu_item_id ) && wp_delete_post( $menu_item_id, true ) )
245			$messages[] = '<div id="message" class="updated notice is-dismissible"><p>' . __('The menu item has been successfully deleted.') . '</p></div>';
246		break;
247
248	case 'delete':
249		check_admin_referer( 'delete-nav_menu-' . $nav_menu_selected_id );
250		if ( is_nav_menu( $nav_menu_selected_id ) ) {
251			$deletion = wp_delete_nav_menu( $nav_menu_selected_id );
252		} else {
253			// Reset the selected menu.
254			$nav_menu_selected_id = 0;
255			unset( $_REQUEST['menu'] );
256		}
257
258		if ( ! isset( $deletion ) )
259			break;
260
261		if ( is_wp_error( $deletion ) )
262			$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . $deletion->get_error_message() . '</p></div>';
263		else
264			$messages[] = '<div id="message" class="updated notice is-dismissible"><p>' . __( 'The menu has been successfully deleted.' ) . '</p></div>';
265		break;
266
267	case 'delete_menus':
268		check_admin_referer( 'nav_menus_bulk_actions' );
269		foreach ( $_REQUEST['delete_menus'] as $menu_id_to_delete ) {
270			if ( ! is_nav_menu( $menu_id_to_delete ) )
271				continue;
272
273			$deletion = wp_delete_nav_menu( $menu_id_to_delete );
274			if ( is_wp_error( $deletion ) ) {
275				$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . $deletion->get_error_message() . '</p></div>';
276				$deletion_error = true;
277			}
278		}
279
280		if ( empty( $deletion_error ) )
281			$messages[] = '<div id="message" class="updated notice is-dismissible"><p>' . __( 'Selected menus have been successfully deleted.' ) . '</p></div>';
282		break;
283
284	case 'update':
285		check_admin_referer( 'update-nav_menu', 'update-nav-menu-nonce' );
286
287		// Remove menu locations that have been unchecked.
288		foreach ( $locations as $location => $description ) {
289			if ( ( empty( $_POST['menu-locations'] ) || empty( $_POST['menu-locations'][ $location ] ) ) && isset( $menu_locations[ $location ] ) && $menu_locations[ $location ] == $nav_menu_selected_id )
290				unset( $menu_locations[ $location ] );
291		}
292
293		// Merge new and existing menu locations if any new ones are set.
294		if ( isset( $_POST['menu-locations'] ) ) {
295			$new_menu_locations = array_map( 'absint', $_POST['menu-locations'] );
296			$menu_locations = array_merge( $menu_locations, $new_menu_locations );
297		}
298
299		// Set menu locations.
300		set_theme_mod( 'nav_menu_locations', $menu_locations );
301
302		// Add Menu.
303		if ( 0 == $nav_menu_selected_id ) {
304			$new_menu_title = trim( esc_html( $_POST['menu-name'] ) );
305
306			if ( $new_menu_title ) {
307				$_nav_menu_selected_id = wp_update_nav_menu_object( 0, array('menu-name' => $new_menu_title) );
308
309				if ( is_wp_error( $_nav_menu_selected_id ) ) {
310					$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . $_nav_menu_selected_id->get_error_message() . '</p></div>';
311				} else {
312					$_menu_object = wp_get_nav_menu_object( $_nav_menu_selected_id );
313					$nav_menu_selected_id = $_nav_menu_selected_id;
314					$nav_menu_selected_title = $_menu_object->name;
315					if ( isset( $_REQUEST['menu-item'] ) )
316						wp_save_nav_menu_items( $nav_menu_selected_id, absint( $_REQUEST['menu-item'] ) );
317					if ( isset( $_REQUEST['zero-menu-state'] ) ) {
318						// If there are menu items, add them
319						wp_nav_menu_update_menu_items( $nav_menu_selected_id, $nav_menu_selected_title );
320						// Auto-save nav_menu_locations
321						$locations = get_nav_menu_locations();
322						foreach ( $locations as $location => $menu_id ) {
323								$locations[ $location ] = $nav_menu_selected_id;
324								break; // There should only be 1
325						}
326						set_theme_mod( 'nav_menu_locations', $locations );
327					}
328					if ( isset( $_REQUEST['use-location'] ) ) {
329						$locations = get_registered_nav_menus();
330						$menu_locations = get_nav_menu_locations();
331						if ( isset( $locations[ $_REQUEST['use-location'] ] ) )
332							$menu_locations[ $_REQUEST['use-location'] ] = $nav_menu_selected_id;
333						set_theme_mod( 'nav_menu_locations', $menu_locations );
334					}
335
336					// $messages[] = '<div id="message" class="updated"><p>' . sprintf( __( '<strong>%s</strong> has been created.' ), $nav_menu_selected_title ) . '</p></div>';
337					wp_redirect( admin_url( 'nav-menus.php?menu=' . $_nav_menu_selected_id ) );
338					exit();
339				}
340			} else {
341				$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . __( 'Please enter a valid menu name.' ) . '</p></div>';
342			}
343
344		// Update existing menu.
345		} else {
346
347			$_menu_object = wp_get_nav_menu_object( $nav_menu_selected_id );
348
349			$menu_title = trim( esc_html( $_POST['menu-name'] ) );
350			if ( ! $menu_title ) {
351				$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . __( 'Please enter a valid menu name.' ) . '</p></div>';
352				$menu_title = $_menu_object->name;
353			}
354
355			if ( ! is_wp_error( $_menu_object ) ) {
356				$_nav_menu_selected_id = wp_update_nav_menu_object( $nav_menu_selected_id, array( 'menu-name' => $menu_title ) );
357				if ( is_wp_error( $_nav_menu_selected_id ) ) {
358					$_menu_object = $_nav_menu_selected_id;
359					$messages[] = '<div id="message" class="error notice is-dismissible"><p>' . $_nav_menu_selected_id->get_error_message() . '</p></div>';
360				} else {
361					$_menu_object = wp_get_nav_menu_object( $_nav_menu_selected_id );
362					$nav_menu_selected_title = $_menu_object->name;
363				}
364			}
365
366			// Update menu items.
367			if ( ! is_wp_error( $_menu_object ) ) {
368				$messages = array_merge( $messages, wp_nav_menu_update_menu_items( $_nav_menu_selected_id, $nav_menu_selected_title ) );
369
370				// If the menu ID changed, redirect to the new URL.
371				if ( $nav_menu_selected_id != $_nav_menu_selected_id ) {
372					wp_redirect( admin_url( 'nav-menus.php?menu=' . intval( $_nav_menu_selected_id ) ) );
373					exit();
374				}
375			}
376		}
377		break;
378	case 'locations':
379		if ( ! $num_locations ) {
380			wp_redirect( admin_url( 'nav-menus.php' ) );
381			exit();
382		}
383
384		add_filter( 'screen_options_show_screen', '__return_false' );
385
386		if ( isset( $_POST['menu-locations'] ) ) {
387			check_admin_referer( 'save-menu-locations' );
388
389			$new_menu_locations = array_map( 'absint', $_POST['menu-locations'] );
390			$menu_locations = array_merge( $menu_locations, $new_menu_locations );
391			// Set menu locations
392			set_theme_mod( 'nav_menu_locations', $menu_locations );
393
394			$messages[] = '<div id="message" class="updated notice is-dismissible"><p>' . __( 'Menu locations updated.' ) . '</p></div>';
395		}
396		break;
397}
398
399// Get all nav menus.
400$nav_menus = wp_get_nav_menus();
401$menu_count = count( $nav_menus );
402
403// Are we on the add new screen?
404$add_new_screen = ( isset( $_GET['menu'] ) && 0 == $_GET['menu'] ) ? true : false;
405
406$locations_screen = ( isset( $_GET['action'] ) && 'locations' == $_GET['action'] ) ? true : false;
407
408/*
409 * If we have one theme location, and zero menus, we take them right
410 * into editing their first menu.
411 */
412$page_count = wp_count_posts( 'page' );
413$one_theme_location_no_menus = ( 1 == count( get_registered_nav_menus() ) && ! $add_new_screen && empty( $nav_menus ) && ! empty( $page_count->publish ) ) ? true : false;
414
415$nav_menus_l10n = array(
416	'oneThemeLocationNoMenus' => $one_theme_location_no_menus,
417	'moveUp'       => __( 'Move up one' ),
418	'moveDown'     => __( 'Move down one' ),
419	'moveToTop'    => __( 'Move to the top' ),
420	/* translators: %s: previous item name */
421	'moveUnder'    => __( 'Move under %s' ),
422	/* translators: %s: previous item name */
423	'moveOutFrom'  => __( 'Move out from under %s' ),
424	/* translators: %s: previous item name */
425	'under'        => __( 'Under %s' ),
426	/* translators: %s: previous item name */
427	'outFrom'      => __( 'Out from under %s' ),
428	/* translators: 1: item name, 2: item position, 3: total number of items */
429	'menuFocus'    => __( '%1$s. Menu item %2$d of %3$d.' ),
430	/* translators: 1: item name, 2: item position, 3: parent item name */
431	'subMenuFocus' => __( '%1$s. Sub item number %2$d under %3$s.' ),
432);
433wp_localize_script( 'nav-menu', 'menus', $nav_menus_l10n );
434
435/*
436 * Redirect to add screen if there are no menus and this users has either zero,
437 * or more than 1 theme locations.
438 */
439if ( 0 == $menu_count && ! $add_new_screen && ! $one_theme_location_no_menus )
440	wp_redirect( admin_url( 'nav-menus.php?action=edit&menu=0' ) );
441
442// Get recently edited nav menu.
443$recently_edited = absint( get_user_option( 'nav_menu_recently_edited' ) );
444if ( empty( $recently_edited ) && is_nav_menu( $nav_menu_selected_id ) )
445	$recently_edited = $nav_menu_selected_id;
446
447// Use $recently_edited if none are selected.
448if ( empty( $nav_menu_selected_id ) && ! isset( $_GET['menu'] ) && is_nav_menu( $recently_edited ) )
449	$nav_menu_selected_id = $recently_edited;
450
451// On deletion of menu, if another menu exists, show it.
452if ( ! $add_new_screen && 0 < $menu_count && isset( $_GET['action'] ) && 'delete' == $_GET['action'] )
453	$nav_menu_selected_id = $nav_menus[0]->term_id;
454
455// Set $nav_menu_selected_id to 0 if no menus.
456if ( $one_theme_location_no_menus ) {
457	$nav_menu_selected_id = 0;
458} elseif ( empty( $nav_menu_selected_id ) && ! empty( $nav_menus ) && ! $add_new_screen ) {
459	// if we have no selection yet, and we have menus, set to the first one in the list.
460	$nav_menu_selected_id = $nav_menus[0]->term_id;
461}
462
463// Update the user's setting.
464if ( $nav_menu_selected_id != $recently_edited && is_nav_menu( $nav_menu_selected_id ) )
465	update_user_meta( $current_user->ID, 'nav_menu_recently_edited', $nav_menu_selected_id );
466
467// If there's a menu, get its name.
468if ( ! $nav_menu_selected_title && is_nav_menu( $nav_menu_selected_id ) ) {
469	$_menu_object = wp_get_nav_menu_object( $nav_menu_selected_id );
470	$nav_menu_selected_title = ! is_wp_error( $_menu_object ) ? $_menu_object->name : '';
471}
472
473// Generate truncated menu names.
474foreach ( (array) $nav_menus as $key => $_nav_menu ) {
475	$nav_menus[$key]->truncated_name = wp_html_excerpt( $_nav_menu->name, 40, '&hellip;' );
476}
477
478// Retrieve menu locations.
479if ( current_theme_supports( 'menus' ) ) {
480	$locations = get_registered_nav_menus();
481	$menu_locations = get_nav_menu_locations();
482}
483
484/*
485 * Ensure the user will be able to scroll horizontally
486 * by adding a class for the max menu depth.
487 *
488 * @global int $_wp_nav_menu_max_depth
489 */
490global $_wp_nav_menu_max_depth;
491$_wp_nav_menu_max_depth = 0;
492
493// Calling wp_get_nav_menu_to_edit generates $_wp_nav_menu_max_depth.
494if ( is_nav_menu( $nav_menu_selected_id ) ) {
495	$menu_items = wp_get_nav_menu_items( $nav_menu_selected_id, array( 'post_status' => 'any' ) );
496	$edit_markup = wp_get_nav_menu_to_edit( $nav_menu_selected_id );
497}
498
499/**
500 *
501 * @global int $_wp_nav_menu_max_depth
502 *
503 * @param string $classes
504 * @return string
505 */
506function wp_nav_menu_max_depth( $classes ) {
507	global $_wp_nav_menu_max_depth;
508	return "$classes menu-max-depth-$_wp_nav_menu_max_depth";
509}
510
511add_filter('admin_body_class', 'wp_nav_menu_max_depth');
512
513wp_nav_menu_setup();
514wp_initial_nav_menu_meta_boxes();
515
516if ( ! current_theme_supports( 'menus' ) && ! $num_locations )
517	$messages[] = '<div id="message" class="updated"><p>' . sprintf( __( 'Your theme does not natively support menus, but you can use them in sidebars by adding a &#8220;Navigation Menu&#8221; widget on the <a href="%s">Widgets</a> screen.' ), admin_url( 'widgets.php' ) ) . '</p></div>';
518
519if ( ! $locations_screen ) : // Main tab
520	$overview  = '<p>' . __( 'This screen is used for managing your navigation menus.' ) . '</p>';
521	/* translators: 1: Widgets admin screen URL, 2 and 3: The name of the default themes */
522	$overview .= '<p>' . sprintf( __( 'Menus can be displayed in locations defined by your theme, even used in sidebars by adding a &#8220;Navigation Menu&#8221; widget on the <a href="%1$s">Widgets</a> screen. If your theme does not support the navigation menus feature (the default themes, %2$s and %3$s, do), you can learn about adding this support by following the Documentation link to the side.' ), admin_url( 'widgets.php' ), 'Twenty Sixteen', 'Twenty Seventeen' ) . '</p>';
523	$overview .= '<p>' . __( 'From this screen you can:' ) . '</p>';
524	$overview .= '<ul><li>' . __( 'Create, edit, and delete menus' ) . '</li>';
525	$overview .= '<li>' . __( 'Add, organize, and modify individual menu items' ) . '</li></ul>';
526
527	get_current_screen()->add_help_tab( array(
528		'id'      => 'overview',
529		'title'   => __( 'Overview' ),
530		'content' => $overview
531	) );
532
533	$menu_management  = '<p>' . __( 'The menu management box at the top of the screen is used to control which menu is opened in the editor below.' ) . '</p>';
534	$menu_management .= '<ul><li>' . __( 'To edit an existing menu, <strong>choose a menu from the drop down and click Select</strong>' ) . '</li>';
535	$menu_management .= '<li>' . __( 'If you haven&#8217;t yet created any menus, <strong>click the &#8217;create a new menu&#8217; link</strong> to get started' ) . '</li></ul>';
536	$menu_management .= '<p>' . __( 'You can assign theme locations to individual menus by <strong>selecting the desired settings</strong> at the bottom of the menu editor. To assign menus to all theme locations at once, <strong>visit the Manage Locations tab</strong> at the top of the screen.' ) . '</p>';
537
538	get_current_screen()->add_help_tab( array(
539		'id'      => 'menu-management',
540		'title'   => __( 'Menu Management' ),
541		'content' => $menu_management
542	) );
543
544	$editing_menus  = '<p>' . __( 'Each navigation menu may contain a mix of links to pages, categories, custom URLs or other content types. Menu links are added by selecting items from the expanding boxes in the left-hand column below.' ) . '</p>';
545	$editing_menus .= '<p>' . __( '<strong>Clicking the arrow to the right of any menu item</strong> in the editor will reveal a standard group of settings. Additional settings such as link target, CSS classes, link relationships, and link descriptions can be enabled and disabled via the Screen Options tab.' ) . '</p>';
546	$editing_menus .= '<ul><li>' . __( 'Add one or several items at once by <strong>selecting the checkbox next to each item and clicking Add to Menu</strong>' ) . '</li>';
547	$editing_menus .= '<li>' . __( 'To add a custom link, <strong>expand the Custom Links section, enter a URL and link text, and click Add to Menu</strong>' ) .'</li>';
548	$editing_menus .= '<li>' . __( 'To reorganize menu items, <strong>drag and drop items with your mouse or use your keyboard</strong>. Drag or move a menu item a little to the right to make it a submenu' ) . '</li>';
549	$editing_menus .= '<li>' . __( 'Delete a menu item by <strong>expanding it and clicking the Remove link</strong>' ) . '</li></ul>';
550
551	get_current_screen()->add_help_tab( array(
552		'id'      => 'editing-menus',
553		'title'   => __( 'Editing Menus' ),
554		'content' => $editing_menus
555	) );
556else : // Locations Tab.
557	$locations_overview  = '<p>' . __( 'This screen is used for globally assigning menus to locations defined by your theme.' ) . '</p>';
558	$locations_overview .= '<ul><li>' . __( 'To assign menus to one or more theme locations, <strong>select a menu from each location&#8217;s drop down.</strong> When you&#8217;re finished, <strong>click Save Changes</strong>' ) . '</li>';
559	$locations_overview .= '<li>' . __( 'To edit a menu currently assigned to a theme location, <strong>click the adjacent &#8217;Edit&#8217; link</strong>' ) . '</li>';
560	$locations_overview .= '<li>' . __( 'To add a new menu instead of assigning an existing one, <strong>click the &#8217;Use new menu&#8217; link</strong>. Your new menu will be automatically assigned to that theme location' ) . '</li></ul>';
561
562	get_current_screen()->add_help_tab( array(
563		'id'      => 'locations-overview',
564		'title'   => __( 'Overview' ),
565		'content' => $locations_overview
566	) );
567endif;
568
569get_current_screen()->set_help_sidebar(
570	'<p><strong>' . __('For more information:') . '</strong></p>' .
571	'<p>' . __('<a href="https://codex.wordpress.org/Appearance_Menus_Screen">Documentation on Menus</a>') . '</p>' .
572	'<p>' . __('<a href="https://wordpress.org/support/">Support Forums</a>') . '</p>'
573);
574
575// Get the admin header.
576require_once( ABSPATH . 'wp-admin/admin-header.php' );
577?>
578<div class="wrap">
579	<h1 class="wp-heading-inline"><?php echo esc_html( __( 'Menus' ) ); ?></h1>
580	<?php
581	if ( current_user_can( 'customize' ) ) :
582		$focus = $locations_screen ? array( 'section' => 'menu_locations' ) : array( 'panel' => 'nav_menus' );
583		printf(
584			' <a class="page-title-action hide-if-no-customize" href="%1$s">%2$s</a>',
585			esc_url( add_query_arg( array(
586				array( 'autofocus' => $focus ),
587				'return' => urlencode( remove_query_arg( wp_removable_query_args(), wp_unslash( $_SERVER['REQUEST_URI'] ) ) ),
588			), admin_url( 'customize.php' ) ) ),
589			__( 'Manage with Live Preview' )
590		);
591	endif;
592	?>
593
594	<hr class="wp-header-end">
595
596	<h2 class="nav-tab-wrapper wp-clearfix">
597		<a href="<?php echo admin_url( 'nav-menus.php' ); ?>" class="nav-tab<?php if ( ! isset( $_GET['action'] ) || isset( $_GET['action'] ) && 'locations' != $_GET['action'] ) echo ' nav-tab-active'; ?>"><?php esc_html_e( 'Edit Menus' ); ?></a>
598		<?php if ( $num_locations && $menu_count ) : ?>
599			<a href="<?php echo esc_url( add_query_arg( array( 'action' => 'locations' ), admin_url( 'nav-menus.php' ) ) ); ?>" class="nav-tab<?php if ( $locations_screen ) echo ' nav-tab-active'; ?>"><?php esc_html_e( 'Manage Locations' ); ?></a>
600		<?php
601			endif;
602		?>
603	</h2>
604	<?php
605	foreach ( $messages as $message ) :
606		echo $message . "\n";
607	endforeach;
608	?>
609	<?php
610	if ( $locations_screen ) :
611		if ( 1 == $num_locations ) {
612			echo '<p>' . __( 'Your theme supports one menu. Select which menu you would like to use.' ) . '</p>';
613		} else {
614			echo '<p>' .  sprintf( _n( 'Your theme supports %s menu. Select which menu appears in each location.', 'Your theme supports %s menus. Select which menu appears in each location.', $num_locations ), number_format_i18n( $num_locations ) ) . '</p>';
615		}
616	?>
617	<div id="menu-locations-wrap">
618		<form method="post" action="<?php echo esc_url( add_query_arg( array( 'action' => 'locations' ), admin_url( 'nav-menus.php' ) ) ); ?>">
619			<table class="widefat fixed" id="menu-locations-table">
620				<thead>
621				<tr>
622					<th scope="col" class="manage-column column-locations"><?php _e( 'Theme Location' ); ?></th>
623					<th scope="col" class="manage-column column-menus"><?php _e( 'Assigned Menu' ); ?></th>
624				</tr>
625				</thead>
626				<tbody class="menu-locations">
627				<?php foreach ( $locations as $_location => $_name ) { ?>
628					<tr class="menu-locations-row">
629						<td class="menu-location-title"><label for="locations-<?php echo $_location; ?>"><?php echo $_name; ?></label></td>
630						<td class="menu-location-menus">
631							<select name="menu-locations[<?php echo $_location; ?>]" id="locations-<?php echo $_location; ?>">
632								<option value="0"><?php printf( '&mdash; %s &mdash;', esc_html__( 'Select a Menu' ) ); ?></option>
633								<?php foreach ( $nav_menus as $menu ) : ?>
634									<?php $selected = isset( $menu_locations[$_location] ) && $menu_locations[$_location] == $menu->term_id; ?>
635									<option <?php if ( $selected ) echo 'data-orig="true"'; ?> <?php selected( $selected ); ?> value="<?php echo $menu->term_id; ?>">
636										<?php echo wp_html_excerpt( $menu->name, 40, '&hellip;' ); ?>
637									</option>
638								<?php endforeach; ?>
639							</select>
640							<div class="locations-row-links">
641								<?php if ( isset( $menu_locations[ $_location ] ) && 0 != $menu_locations[ $_location ] ) : ?>
642								<span class="locations-edit-menu-link">
643									<a href="<?php echo esc_url( add_query_arg( array( 'action' => 'edit', 'menu' => $menu_locations[$_location] ), admin_url( 'nav-menus.php' ) ) ); ?>">
644										<span aria-hidden="true"><?php _ex( 'Edit', 'menu' ); ?></span><span class="screen-reader-text"><?php _e( 'Edit selected menu' ); ?></span>
645									</a>
646								</span>
647								<?php endif; ?>
648								<span class="locations-add-menu-link">
649									<a href="<?php echo esc_url( add_query_arg( array( 'action' => 'edit', 'menu' => 0, 'use-location' => $_location ), admin_url( 'nav-menus.php' ) ) ); ?>">
650										<?php _ex( 'Use new menu', 'menu' ); ?>
651									</a>
652								</span>
653							</div><!-- .locations-row-links -->
654						</td><!-- .menu-location-menus -->
655					</tr><!-- .menu-locations-row -->
656				<?php } // foreach ?>
657				</tbody>
658			</table>
659			<p class="button-controls wp-clearfix"><?php submit_button( __( 'Save Changes' ), 'primary left', 'nav-menu-locations', false ); ?></p>
660			<?php wp_nonce_field( 'save-menu-locations' ); ?>
661			<input type="hidden" name="menu" id="nav-menu-meta-object-id" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" />
662		</form>
663	</div><!-- #menu-locations-wrap -->
664	<?php
665	/**
666	 * Fires after the menu locations table is displayed.
667	 *
668	 * @since 3.6.0
669	 */
670	do_action( 'after_menu_locations_table' ); ?>
671	<?php else : ?>
672	<div class="manage-menus">
673 		<?php if ( $menu_count < 2 ) : ?>
674		<span class="add-edit-menu-action">
675			<?php printf( __( 'Edit your menu below, or <a href="%s">create a new menu</a>.' ), esc_url( add_query_arg( array( 'action' => 'edit', 'menu' => 0 ), admin_url( 'nav-menus.php' ) ) ) ); ?>
676		</span><!-- /add-edit-menu-action -->
677		<?php else : ?>
678			<form method="get" action="<?php echo admin_url( 'nav-menus.php' ); ?>">
679			<input type="hidden" name="action" value="edit" />
680			<label for="select-menu-to-edit" class="selected-menu"><?php _e( 'Select a menu to edit:' ); ?></label>
681			<select name="menu" id="select-menu-to-edit">
682				<?php if ( $add_new_screen ) : ?>
683					<option value="0" selected="selected"><?php _e( '&mdash; Select &mdash;' ); ?></option>
684				<?php endif; ?>
685				<?php foreach ( (array) $nav_menus as $_nav_menu ) : ?>
686					<option value="<?php echo esc_attr( $_nav_menu->term_id ); ?>" <?php selected( $_nav_menu->term_id, $nav_menu_selected_id ); ?>>
687						<?php
688						echo esc_html( $_nav_menu->truncated_name ) ;
689
690						if ( ! empty( $menu_locations ) && in_array( $_nav_menu->term_id, $menu_locations ) ) {
691							$locations_assigned_to_this_menu = array();
692							foreach ( array_keys( $menu_locations, $_nav_menu->term_id ) as $menu_location_key ) {
693								if ( isset( $locations[ $menu_location_key ] ) ) {
694									$locations_assigned_to_this_menu[] = $locations[ $menu_location_key ];
695								}
696							}
697
698							/**
699							 * Filters the number of locations listed per menu in the drop-down select.
700							 *
701							 * @since 3.6.0
702							 *
703							 * @param int $locations Number of menu locations to list. Default 3.
704							 */
705							$assigned_locations = array_slice( $locations_assigned_to_this_menu, 0, absint( apply_filters( 'wp_nav_locations_listed_per_menu', 3 ) ) );
706
707							// Adds ellipses following the number of locations defined in $assigned_locations.
708							if ( ! empty( $assigned_locations ) ) {
709								printf( ' (%1$s%2$s)',
710									implode( ', ', $assigned_locations ),
711									count( $locations_assigned_to_this_menu ) > count( $assigned_locations ) ? ' &hellip;' : ''
712								);
713							}
714						}
715						?>
716					</option>
717				<?php endforeach; ?>
718			</select>
719			<span class="submit-btn"><input type="submit" class="button" value="<?php esc_attr_e( 'Select' ); ?>"></span>
720			<span class="add-new-menu-action">
721				<?php printf( __( 'or <a href="%s">create a new menu</a>.' ), esc_url( add_query_arg( array( 'action' => 'edit', 'menu' => 0 ), admin_url( 'nav-menus.php' ) ) ) ); ?>
722			</span><!-- /add-new-menu-action -->
723		</form>
724	<?php endif; ?>
725	</div><!-- /manage-menus -->
726	<div id="nav-menus-frame" class="wp-clearfix">
727	<div id="menu-settings-column" class="metabox-holder<?php if ( isset( $_GET['menu'] ) && '0' == $_GET['menu'] ) { echo ' metabox-holder-disabled'; } ?>">
728
729		<div class="clear"></div>
730
731		<form id="nav-menu-meta" class="nav-menu-meta" method="post" enctype="multipart/form-data">
732			<input type="hidden" name="menu" id="nav-menu-meta-object-id" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" />
733			<input type="hidden" name="action" value="add-menu-item" />
734			<?php wp_nonce_field( 'add-menu_item', 'menu-settings-column-nonce' ); ?>
735			<?php do_accordion_sections( 'nav-menus', 'side', null ); ?>
736		</form>
737
738	</div><!-- /#menu-settings-column -->
739	<div id="menu-management-liquid">
740		<div id="menu-management">
741			<form id="update-nav-menu" method="post" enctype="multipart/form-data">
742				<div class="menu-edit <?php if ( $add_new_screen ) echo 'blank-slate'; ?>">
743					<input type="hidden" name="nav-menu-data">
744					<?php
745					wp_nonce_field( 'closedpostboxes', 'closedpostboxesnonce', false );
746					wp_nonce_field( 'meta-box-order', 'meta-box-order-nonce', false );
747					wp_nonce_field( 'update-nav_menu', 'update-nav-menu-nonce' );
748
749					$menu_name_aria_desc = $add_new_screen ? ' aria-describedby="menu-name-desc"' : '';
750
751					if ( $one_theme_location_no_menus ) {
752						$menu_name_val = 'value="' . esc_attr( 'Menu 1' ) . '"';
753					?>
754						<input type="hidden" name="zero-menu-state" value="true" />
755					<?php } else {
756						$menu_name_val = 'value="' . esc_attr( $nav_menu_selected_title ) . '"';
757					} ?>
758 					<input type="hidden" name="action" value="update" />
759					<input type="hidden" name="menu" id="menu" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" />
760					<div id="nav-menu-header">
761						<div class="major-publishing-actions wp-clearfix">
762							<label class="menu-name-label" for="menu-name"><?php _e( 'Menu Name' ); ?></label>
763							<input name="menu-name" id="menu-name" type="text" class="menu-name regular-text menu-item-textbox" <?php echo $menu_name_val . $menu_name_aria_desc; ?> />
764							<div class="publishing-action">
765								<?php submit_button( empty( $nav_menu_selected_id ) ? __( 'Create Menu' ) : __( 'Save Menu' ), 'primary large menu-save', 'save_menu', false, array( 'id' => 'save_menu_header' ) ); ?>
766							</div><!-- END .publishing-action -->
767						</div><!-- END .major-publishing-actions -->
768					</div><!-- END .nav-menu-header -->
769					<div id="post-body">
770						<div id="post-body-content" class="wp-clearfix">
771							<?php if ( ! $add_new_screen ) : ?>
772							<h3><?php _e( 'Menu Structure' ); ?></h3>
773							<?php $starter_copy = ( $one_theme_location_no_menus ) ? __( 'Edit your default menu by adding or removing items. Drag each item into the order you prefer. Click Create Menu to save your changes.' ) : __( 'Drag each item into the order you prefer. Click the arrow on the right of the item to reveal additional configuration options.' ); ?>
774							<div class="drag-instructions post-body-plain" <?php if ( isset( $menu_items ) && 0 == count( $menu_items ) ) { ?>style="display: none;"<?php } ?>>
775								<p><?php echo $starter_copy; ?></p>
776							</div>
777							<?php
778							if ( isset( $edit_markup ) && ! is_wp_error( $edit_markup ) ) {
779								echo $edit_markup;
780							} else {
781							?>
782							<ul class="menu" id="menu-to-edit"></ul>
783							<?php } ?>
784							<?php endif; ?>
785							<?php if ( $add_new_screen ) : ?>
786								<p class="post-body-plain" id="menu-name-desc"><?php _e( 'Give your menu a name, then click Create Menu.' ); ?></p>
787								<?php if ( isset( $_GET['use-location'] ) ) : ?>
788									<input type="hidden" name="use-location" value="<?php echo esc_attr( $_GET['use-location'] ); ?>" />
789								<?php endif; ?>
790							<?php endif; ?>
791							<div class="menu-settings" <?php if ( $one_theme_location_no_menus ) { ?>style="display: none;"<?php } ?>>
792								<h3><?php _e( 'Menu Settings' ); ?></h3>
793								<?php
794								if ( ! isset( $auto_add ) ) {
795									$auto_add = get_option( 'nav_menu_options' );
796									if ( ! isset( $auto_add['auto_add'] ) )
797										$auto_add = false;
798									elseif ( false !== array_search( $nav_menu_selected_id, $auto_add['auto_add'] ) )
799										$auto_add = true;
800									else
801										$auto_add = false;
802								} ?>
803
804								<fieldset class="menu-settings-group auto-add-pages">
805									<legend class="menu-settings-group-name howto"><?php _e( 'Auto add pages' ); ?></legend>
806									<div class="menu-settings-input checkbox-input">
807										<input type="checkbox"<?php checked( $auto_add ); ?> name="auto-add-pages" id="auto-add-pages" value="1" /> <label for="auto-add-pages"><?php printf( __('Automatically add new top-level pages to this menu' ), esc_url( admin_url( 'edit.php?post_type=page' ) ) ); ?></label>
808									</div>
809								</fieldset>
810
811								<?php if ( current_theme_supports( 'menus' ) ) : ?>
812
813									<fieldset class="menu-settings-group menu-theme-locations">
814										<legend class="menu-settings-group-name howto"><?php _e( 'Display location' ); ?></legend>
815										<?php foreach ( $locations as $location => $description ) : ?>
816										<div class="menu-settings-input checkbox-input">
817											<input type="checkbox"<?php checked( isset( $menu_locations[ $location ] ) && $menu_locations[ $location ] == $nav_menu_selected_id ); ?> name="menu-locations[<?php echo esc_attr( $location ); ?>]" id="locations-<?php echo esc_attr( $location ); ?>" value="<?php echo esc_attr( $nav_menu_selected_id ); ?>" />
818											<label for="locations-<?php echo esc_attr( $location ); ?>"><?php echo $description; ?></label>
819											<?php if ( ! empty( $menu_locations[ $location ] ) && $menu_locations[ $location ] != $nav_menu_selected_id ) : ?>
820												<span class="theme-location-set"><?php
821													/* translators: %s: menu name */
822													printf( _x( '(Currently set to: %s)', 'menu location' ),
823														wp_get_nav_menu_object( $menu_locations[ $location ] )->name
824													);
825												?></span>
826											<?php endif; ?>
827										</div>
828										<?php endforeach; ?>
829									</fieldset>
830
831								<?php endif; ?>
832
833							</div>
834						</div><!-- /#post-body-content -->
835					</div><!-- /#post-body -->
836					<div id="nav-menu-footer">
837						<div class="major-publishing-actions wp-clearfix">
838							<?php if ( 0 != $menu_count && ! $add_new_screen ) : ?>
839							<span class="delete-action">
840								<a class="submitdelete deletion menu-delete" href="<?php echo esc_url( wp_nonce_url( add_query_arg( array( 'action' => 'delete', 'menu' => $nav_menu_selected_id ), admin_url( 'nav-menus.php' ) ), 'delete-nav_menu-' . $nav_menu_selected_id) ); ?>"><?php _e('Delete Menu'); ?></a>
841							</span><!-- END .delete-action -->
842							<?php endif; ?>
843							<div class="publishing-action">
844								<?php submit_button( empty( $nav_menu_selected_id ) ? __( 'Create Menu' ) : __( 'Save Menu' ), 'primary large menu-save', 'save_menu', false, array( 'id' => 'save_menu_footer' ) ); ?>
845							</div><!-- END .publishing-action -->
846						</div><!-- END .major-publishing-actions -->
847					</div><!-- /#nav-menu-footer -->
848				</div><!-- /.menu-edit -->
849			</form><!-- /#update-nav-menu -->
850		</div><!-- /#menu-management -->
851	</div><!-- /#menu-management-liquid -->
852	</div><!-- /#nav-menus-frame -->
853	<?php endif; ?>
854</div><!-- /.wrap-->
855<?php include( ABSPATH . 'wp-admin/admin-footer.php' ); ?>