/wp-includes/nav-menu.php

https://bitbucket.org/skyarch-iijima/wordpress · PHP · 1176 lines · 589 code · 158 blank · 429 comment · 148 complexity · 5cdaca092b849167e6fa8f9ce6a3df45 MD5 · raw file 

    

  1. <?php
    2. 

  2. /**
    3. 

  3.  * Navigation Menu functions
    4. 

  4.  *
    5. 

  5.  * @package WordPress
    6. 

  6.  * @subpackage Nav_Menus
    7. 

  7.  * @since 3.0.0
    8. 

  8.  */
    9. 

  9. 

  10. /**
    11. 

  11.  * Returns a navigation menu object.
    12. 

  12.  *
    13. 

  13.  * @since 3.0.0
    14. 

  14.  *
    15. 

  15.  * @param int|string|WP_Term $menu Menu ID, slug, name, or object.
    16. 

  16.  * @return WP_Term|false False if $menu param isn't supplied or term does not exist, menu object if successful.
    17. 

  17.  */
    18. 

  18. function wp_get_nav_menu_object( $menu ) {
    19. 

  19. 	$menu_obj = false;
    20. 

  20. 

  21. 	if ( is_object( $menu ) ) {
    22. 

  22. 		$menu_obj = $menu;
    23. 

  23. 	}
    24. 

  24. 

  25. 	if ( $menu && ! $menu_obj ) {
    26. 

  26. 		$menu_obj = get_term( $menu, 'nav_menu' );
    27. 

  27. 

  28. 		if ( ! $menu_obj ) {
    29. 

  29. 			$menu_obj = get_term_by( 'slug', $menu, 'nav_menu' );
    30. 

  30. 		}
    31. 

  31. 

  32. 		if ( ! $menu_obj ) {
    33. 

  33. 			$menu_obj = get_term_by( 'name', $menu, 'nav_menu' );
    34. 

  34. 		}
    35. 

  35. 	}
    36. 

  36. 

  37. 	if ( ! $menu_obj || is_wp_error( $menu_obj ) ) {
    38. 

  38. 		$menu_obj = false;
    39. 

  39. 	}
    40. 

  40. 

  41. 	/**
    42. 

  42. 	 * Filters the nav_menu term retrieved for wp_get_nav_menu_object().
    43. 

  43. 	 *
    44. 

  44. 	 * @since 4.3.0
    45. 

  45. 	 *
    46. 

  46. 	 * @param WP_Term|false      $menu_obj Term from nav_menu taxonomy, or false if nothing had been found.
    47. 

  47. 	 * @param int|string|WP_Term $menu     The menu ID, slug, name, or object passed to wp_get_nav_menu_object().
    48. 

  48. 	 */
    49. 

  49. 	return apply_filters( 'wp_get_nav_menu_object', $menu_obj, $menu );
    50. 

  50. }
    51. 

  51. 

  52. /**
    53. 

  53.  * Check if the given ID is a navigation menu.
    54. 

  54.  *
    55. 

  55.  * Returns true if it is; false otherwise.
    56. 

  56.  *
    57. 

  57.  * @since 3.0.0
    58. 

  58.  *
    59. 

  59.  * @param int|string|WP_Term $menu Menu ID, slug, name, or object of menu to check.
    60. 

  60.  * @return bool Whether the menu exists.
    61. 

  61.  */
    62. 

  62. function is_nav_menu( $menu ) {
    63. 

  63. 	if ( ! $menu )
    64. 

  64. 		return false;
    65. 

  65. 

  66. 	$menu_obj = wp_get_nav_menu_object( $menu );
    67. 

  67. 

  68. 	if (
    69. 

  69. 		$menu_obj &&
    70. 

  70. 		! is_wp_error( $menu_obj ) &&
    71. 

  71. 		! empty( $menu_obj->taxonomy ) &&
    72. 

  72. 		'nav_menu' == $menu_obj->taxonomy
    73. 

  73. 	)
    74. 

  74. 		return true;
    75. 

  75. 

  76. 	return false;
    77. 

  77. }
    78. 

  78. 

  79. /**
    80. 

  80.  * Registers navigation menu locations for a theme.
    81. 

  81.  *
    82. 

  82.  * @since 3.0.0
    83. 

  83.  *
    84. 

  84.  * @global array $_wp_registered_nav_menus
    85. 

  85.  *
    86. 

  86.  * @param array $locations Associative array of menu location identifiers (like a slug) and descriptive text.
    87. 

  87.  */
    88. 

  88. function register_nav_menus( $locations = array() ) {
    89. 

  89. 	global $_wp_registered_nav_menus;
    90. 

  90. 

  91. 	add_theme_support( 'menus' );
    92. 

  92. 

  93. 	$_wp_registered_nav_menus = array_merge( (array) $_wp_registered_nav_menus, $locations );
    94. 

  94. }
    95. 

  95. 

  96. /**
    97. 

  97.  * Unregisters a navigation menu location for a theme.
    98. 

  98.  *
    99. 

  99.  * @since 3.1.0
    100. 

  100.  * @global array $_wp_registered_nav_menus
    101. 

  101.  *
    102. 

  102.  * @param string $location The menu location identifier.
    103. 

  103.  * @return bool True on success, false on failure.
    104. 

  104.  */
    105. 

  105. function unregister_nav_menu( $location ) {
    106. 

  106. 	global $_wp_registered_nav_menus;
    107. 

  107. 

  108. 	if ( is_array( $_wp_registered_nav_menus ) && isset( $_wp_registered_nav_menus[$location] ) ) {
    109. 

  109. 		unset( $_wp_registered_nav_menus[$location] );
    110. 

  110. 		if ( empty( $_wp_registered_nav_menus ) ) {
    111. 

  111. 			_remove_theme_support( 'menus' );
    112. 

  112. 		}
    113. 

  113. 		return true;
    114. 

  114. 	}
    115. 

  115. 	return false;
    116. 

  116. }
    117. 

  117. 

  118. /**
    119. 

  119.  * Registers a navigation menu location for a theme.
    120. 

  120.  *
    121. 

  121.  * @since 3.0.0
    122. 

  122.  *
    123. 

  123.  * @param string $location    Menu location identifier, like a slug.
    124. 

  124.  * @param string $description Menu location descriptive text.
    125. 

  125.  */
    126. 

  126. function register_nav_menu( $location, $description ) {
    127. 

  127. 	register_nav_menus( array( $location => $description ) );
    128. 

  128. }
    129. 

  129. /**
    130. 

  130.  * Retrieves all registered navigation menu locations in a theme.
    131. 

  131.  *
    132. 

  132.  * @since 3.0.0
    133. 

  133.  *
    134. 

  134.  * @global array $_wp_registered_nav_menus
    135. 

  135.  *
    136. 

  136.  * @return array Registered navigation menu locations. If none are registered, an empty array.
    137. 

  137.  */
    138. 

  138. function get_registered_nav_menus() {
    139. 

  139. 	global $_wp_registered_nav_menus;
    140. 

  140. 	if ( isset( $_wp_registered_nav_menus ) )
    141. 

  141. 		return $_wp_registered_nav_menus;
    142. 

  142. 	return array();
    143. 

  143. }
    144. 

  144. 

  145. /**
    146. 

  146.  * Retrieves all registered navigation menu locations and the menus assigned to them.
    147. 

  147.  *
    148. 

  148.  * @since 3.0.0
    149. 

  149.  *
    150. 

  150.  * @return array Registered navigation menu locations and the menus assigned them.
    151. 

  151.  *               If none are registered, an empty array.
    152. 

  152.  */
    153. 

  153. 

  154. function get_nav_menu_locations() {
    155. 

  155. 	$locations = get_theme_mod( 'nav_menu_locations' );
    156. 

  156. 	return ( is_array( $locations ) ) ? $locations : array();
    157. 

  157. }
    158. 

  158. 

  159. /**
    160. 

  160.  * Determines whether a registered nav menu location has a menu assigned to it.
    161. 

  161.  *
    162. 

  162.  * @since 3.0.0
    163. 

  163.  *
    164. 

  164.  * @param string $location Menu location identifier.
    165. 

  165.  * @return bool Whether location has a menu.
    166. 

  166.  */
    167. 

  167. function has_nav_menu( $location ) {
    168. 

  168. 	$has_nav_menu = false;
    169. 

  169. 

  170. 	$registered_nav_menus = get_registered_nav_menus();
    171. 

  171. 	if ( isset( $registered_nav_menus[ $location ] ) ) {
    172. 

  172. 		$locations = get_nav_menu_locations();
    173. 

  173. 		$has_nav_menu = ! empty( $locations[ $location ] );
    174. 

  174. 	}
    175. 

  175. 

  176. 	/**
    177. 

  177. 	 * Filters whether a nav menu is assigned to the specified location.
    178. 

  178. 	 *
    179. 

  179. 	 * @since 4.3.0
    180. 

  180. 	 *
    181. 

  181. 	 * @param bool   $has_nav_menu Whether there is a menu assigned to a location.
    182. 

  182. 	 * @param string $location     Menu location.
    183. 

  183. 	 */
    184. 

  184. 	return apply_filters( 'has_nav_menu', $has_nav_menu, $location );
    185. 

  185. }
    186. 

  186. 

  187. /**
    188. 

  188.  * Returns the name of a navigation menu.
    189. 

  189.  *
    190. 

  190.  * @since 4.9.0
    191. 

  191.  *
    192. 

  192.  * @param string $location Menu location identifier.
    193. 

  193.  * @return string Menu name.
    194. 

  194.  */
    195. 

  195. function wp_get_nav_menu_name( $location ) {
    196. 

  196. 	$menu_name = '';
    197. 

  197. 

  198. 	$locations = get_nav_menu_locations();
    199. 

  199. 

  200. 	if ( isset( $locations[ $location ] ) ) {
    201. 

  201. 		$menu = wp_get_nav_menu_object( $locations[ $location ] );
    202. 

  202. 

  203. 		if ( $menu && $menu->name ) {
    204. 

  204. 			$menu_name = $menu->name;
    205. 

  205. 		}
    206. 

  206. 	}
    207. 

  207. 

  208. 	/**
    209. 

  209. 	 * Filters the navigation menu name being returned.
    210. 

  210. 	 *
    211. 

  211. 	 * @since 4.9.0
    212. 

  212. 	 *
    213. 

  213. 	 * @param string $menu_name Menu name.
    214. 

  214. 	 * @param string $location  Menu location identifier.
    215. 

  215. 	 */
    216. 

  216. 	return apply_filters( 'wp_get_nav_menu_name', $menu_name, $location );
    217. 

  217. }
    218. 

  218. 

  219. /**
    220. 

  220.  * Determines whether the given ID is a nav menu item.
    221. 

  221.  *
    222. 

  222.  * @since 3.0.0
    223. 

  223.  *
    224. 

  224.  * @param int $menu_item_id The ID of the potential nav menu item.
    225. 

  225.  * @return bool Whether the given ID is that of a nav menu item.
    226. 

  226.  */
    227. 

  227. function is_nav_menu_item( $menu_item_id = 0 ) {
    228. 

  228. 	return ( ! is_wp_error( $menu_item_id ) && ( 'nav_menu_item' == get_post_type( $menu_item_id ) ) );
    229. 

  229. }
    230. 

  230. 

  231. /**
    232. 

  232.  * Creates a navigation menu.
    233. 

  233.  *
    234. 

  234.  * Note that `$menu_name` is expected to be pre-slashed.
    235. 

  235.  *
    236. 

  236.  * @since 3.0.0
    237. 

  237.  *
    238. 

  238.  * @param string $menu_name Menu name.
    239. 

  239.  * @return int|WP_Error Menu ID on success, WP_Error object on failure.
    240. 

  240.  */
    241. 

  241. function wp_create_nav_menu( $menu_name ) {
    242. 

  242. 	// expected_slashed ($menu_name)
    243. 

  243. 	return wp_update_nav_menu_object( 0, array( 'menu-name' => $menu_name ) );
    244. 

  244. }
    245. 

  245. 

  246. /**
    247. 

  247.  * Delete a Navigation Menu.
    248. 

  248.  *
    249. 

  249.  * @since 3.0.0
    250. 

  250.  *
    251. 

  251.  * @param int|string|WP_Term $menu Menu ID, slug, name, or object.
    252. 

  252.  * @return bool|WP_Error True on success, false or WP_Error object on failure.
    253. 

  253.  */
    254. 

  254. function wp_delete_nav_menu( $menu ) {
    255. 

  255. 	$menu = wp_get_nav_menu_object( $menu );
    256. 

  256. 	if ( ! $menu )
    257. 

  257. 		return false;
    258. 

  258. 

  259. 	$menu_objects = get_objects_in_term( $menu->term_id, 'nav_menu' );
    260. 

  260. 	if ( ! empty( $menu_objects ) ) {
    261. 

  261. 		foreach ( $menu_objects as $item ) {
    262. 

  262. 			wp_delete_post( $item );
    263. 

  263. 		}
    264. 

  264. 	}
    265. 

  265. 

  266. 	$result = wp_delete_term( $menu->term_id, 'nav_menu' );
    267. 

  267. 

  268. 	// Remove this menu from any locations.
    269. 

  269. 	$locations = get_nav_menu_locations();
    270. 

  270. 	foreach ( $locations as $location => $menu_id ) {
    271. 

  271. 		if ( $menu_id == $menu->term_id )
    272. 

  272. 			$locations[ $location ] = 0;
    273. 

  273. 	}
    274. 

  274. 	set_theme_mod( 'nav_menu_locations', $locations );
    275. 

  275. 

  276. 	if ( $result && !is_wp_error($result) )
    277. 

  277. 

  278. 		/**
    279. 

  279. 		 * Fires after a navigation menu has been successfully deleted.
    280. 

  280. 		 *
    281. 

  281. 		 * @since 3.0.0
    282. 

  282. 		 *
    283. 

  283. 		 * @param int $term_id ID of the deleted menu.
    284. 

  284. 		 */
    285. 

  285. 		do_action( 'wp_delete_nav_menu', $menu->term_id );
    286. 

  286. 

  287. 	return $result;
    288. 

  288. }
    289. 

  289. 

  290. /**
    291. 

  291.  * Save the properties of a menu or create a new menu with those properties.
    292. 

  292.  *
    293. 

  293.  * Note that `$menu_data` is expected to be pre-slashed.
    294. 

  294.  *
    295. 

  295.  * @since 3.0.0
    296. 

  296.  *
    297. 

  297.  * @param int   $menu_id   The ID of the menu or "0" to create a new menu.
    298. 

  298.  * @param array $menu_data The array of menu data.
    299. 

  299.  * @return int|WP_Error Menu ID on success, WP_Error object on failure.
    300. 

  300.  */
    301. 

  301. function wp_update_nav_menu_object( $menu_id = 0, $menu_data = array() ) {
    302. 

  302. 	// expected_slashed ($menu_data)
    303. 

  303. 	$menu_id = (int) $menu_id;
    304. 

  304. 

  305. 	$_menu = wp_get_nav_menu_object( $menu_id );
    306. 

  306. 

  307. 	$args = array(
    308. 

  308. 		'description' => ( isset( $menu_data['description'] ) ? $menu_data['description']  : '' ),
    309. 

  309. 		'name'        => ( isset( $menu_data['menu-name']   ) ? $menu_data['menu-name']    : '' ),
    310. 

  310. 		'parent'      => ( isset( $menu_data['parent']      ) ? (int) $menu_data['parent'] : 0  ),
    311. 

  311. 		'slug'        => null,
    312. 

  312. 	);
    313. 

  313. 

  314. 	// double-check that we're not going to have one menu take the name of another
    315. 

  315. 	$_possible_existing = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' );
    316. 

  316. 	if (
    317. 

  317. 		$_possible_existing &&
    318. 

  318. 		! is_wp_error( $_possible_existing ) &&
    319. 

  319. 		isset( $_possible_existing->term_id ) &&
    320. 

  320. 		$_possible_existing->term_id != $menu_id
    321. 

  321. 	) {
    322. 

  322. 		return new WP_Error( 'menu_exists',
    323. 

  323. 			/* translators: %s: menu name */
    324. 

  324. 			sprintf( __( 'The menu name %s conflicts with another menu name. Please try another.' ),
    325. 

  325. 				'<strong>' . esc_html( $menu_data['menu-name'] ) . '</strong>'
    326. 

  326. 			)
    327. 

  327. 		);
    328. 

  328. 	}
    329. 

  329. 

  330. 	// menu doesn't already exist, so create a new menu
    331. 

  331. 	if ( ! $_menu || is_wp_error( $_menu ) ) {
    332. 

  332. 		$menu_exists = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' );
    333. 

  333. 

  334. 		if ( $menu_exists ) {
    335. 

  335. 			return new WP_Error( 'menu_exists',
    336. 

  336. 				/* translators: %s: menu name */
    337. 

  337. 				sprintf( __( 'The menu name %s conflicts with another menu name. Please try another.' ),
    338. 

  338. 					'<strong>' . esc_html( $menu_data['menu-name'] ) . '</strong>'
    339. 

  339. 				)
    340. 

  340. 			);
    341. 

  341. 		}
    342. 

  342. 

  343. 		$_menu = wp_insert_term( $menu_data['menu-name'], 'nav_menu', $args );
    344. 

  344. 

  345. 		if ( is_wp_error( $_menu ) )
    346. 

  346. 			return $_menu;
    347. 

  347. 

  348. 		/**
    349. 

  349. 		 * Fires after a navigation menu is successfully created.
    350. 

  350. 		 *
    351. 

  351. 		 * @since 3.0.0
    352. 

  352. 		 *
    353. 

  353. 		 * @param int   $term_id   ID of the new menu.
    354. 

  354. 		 * @param array $menu_data An array of menu data.
    355. 

  355. 		 */
    356. 

  356. 		do_action( 'wp_create_nav_menu', $_menu['term_id'], $menu_data );
    357. 

  357. 

  358. 		return (int) $_menu['term_id'];
    359. 

  359. 	}
    360. 

  360. 

  361. 	if ( ! $_menu || ! isset( $_menu->term_id ) )
    362. 

  362. 		return 0;
    363. 

  363. 

  364. 	$menu_id = (int) $_menu->term_id;
    365. 

  365. 

  366. 	$update_response = wp_update_term( $menu_id, 'nav_menu', $args );
    367. 

  367. 

  368. 	if ( is_wp_error( $update_response ) )
    369. 

  369. 		return $update_response;
    370. 

  370. 

  371. 	$menu_id = (int) $update_response['term_id'];
    372. 

  372. 

  373. 	/**
    374. 

  374. 	 * Fires after a navigation menu has been successfully updated.
    375. 

  375. 	 *
    376. 

  376. 	 * @since 3.0.0
    377. 

  377. 	 *
    378. 

  378. 	 * @param int   $menu_id   ID of the updated menu.
    379. 

  379. 	 * @param array $menu_data An array of menu data.
    380. 

  380. 	 */
    381. 

  381. 	do_action( 'wp_update_nav_menu', $menu_id, $menu_data );
    382. 

  382. 	return $menu_id;
    383. 

  383. }
    384. 

  384. 

  385. /**
    386. 

  386.  * Save the properties of a menu item or create a new one.
    387. 

  387.  *
    388. 

  388.  * The menu-item-title, menu-item-description, and menu-item-attr-title are expected
    389. 

  389.  * to be pre-slashed since they are passed directly into `wp_insert_post()`.
    390. 

  390.  *
    391. 

  391.  * @since 3.0.0
    392. 

  392.  *
    393. 

  393.  * @param int   $menu_id         The ID of the menu. Required. If "0", makes the menu item a draft orphan.
    394. 

  394.  * @param int   $menu_item_db_id The ID of the menu item. If "0", creates a new menu item.
    395. 

  395.  * @param array $menu_item_data  The menu item's data.
    396. 

  396.  * @return int|WP_Error The menu item's database ID or WP_Error object on failure.
    397. 

  397.  */
    398. 

  398. function wp_update_nav_menu_item( $menu_id = 0, $menu_item_db_id = 0, $menu_item_data = array() ) {
    399. 

  399. 	$menu_id = (int) $menu_id;
    400. 

  400. 	$menu_item_db_id = (int) $menu_item_db_id;
    401. 

  401. 

  402. 	// make sure that we don't convert non-nav_menu_item objects into nav_menu_item objects
    403. 

  403. 	if ( ! empty( $menu_item_db_id ) && ! is_nav_menu_item( $menu_item_db_id ) )
    404. 

  404. 		return new WP_Error( 'update_nav_menu_item_failed', __( 'The given object ID is not that of a menu item.' ) );
    405. 

  405. 

  406. 	$menu = wp_get_nav_menu_object( $menu_id );
    407. 

  407. 

  408. 	if ( ! $menu && 0 !== $menu_id ) {
    409. 

  409. 		return new WP_Error( 'invalid_menu_id', __( 'Invalid menu ID.' ) );
    410. 

  410. 	}
    411. 

  411. 

  412. 	if ( is_wp_error( $menu ) ) {
    413. 

  413. 		return $menu;
    414. 

  414. 	}
    415. 

  415. 

  416. 	$defaults = array(
    417. 

  417. 		'menu-item-db-id' => $menu_item_db_id,
    418. 

  418. 		'menu-item-object-id' => 0,
    419. 

  419. 		'menu-item-object' => '',
    420. 

  420. 		'menu-item-parent-id' => 0,
    421. 

  421. 		'menu-item-position' => 0,
    422. 

  422. 		'menu-item-type' => 'custom',
    423. 

  423. 		'menu-item-title' => '',
    424. 

  424. 		'menu-item-url' => '',
    425. 

  425. 		'menu-item-description' => '',
    426. 

  426. 		'menu-item-attr-title' => '',
    427. 

  427. 		'menu-item-target' => '',
    428. 

  428. 		'menu-item-classes' => '',
    429. 

  429. 		'menu-item-xfn' => '',
    430. 

  430. 		'menu-item-status' => '',
    431. 

  431. 	);
    432. 

  432. 

  433. 	$args = wp_parse_args( $menu_item_data, $defaults );
    434. 

  434. 

  435. 	if ( 0 == $menu_id ) {
    436. 

  436. 		$args['menu-item-position'] = 1;
    437. 

  437. 	} elseif ( 0 == (int) $args['menu-item-position'] ) {
    438. 

  438. 		$menu_items = 0 == $menu_id ? array() : (array) wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) );
    439. 

  439. 		$last_item = array_pop( $menu_items );
    440. 

  440. 		$args['menu-item-position'] = ( $last_item && isset( $last_item->menu_order ) ) ? 1 + $last_item->menu_order : count( $menu_items );
    441. 

  441. 	}
    442. 

  442. 

  443. 	$original_parent = 0 < $menu_item_db_id ? get_post_field( 'post_parent', $menu_item_db_id ) : 0;
    444. 

  444. 

  445. 	if ( 'custom' != $args['menu-item-type'] ) {
    446. 

  446. 		/* if non-custom menu item, then:
    447. 

  447. 			* use original object's URL
    448. 

  448. 			* blank default title to sync with original object's
    449. 

  449. 		*/
    450. 

  450. 

  451. 		$args['menu-item-url'] = '';
    452. 

  452. 

  453. 		$original_title = '';
    454. 

  454. 		if ( 'taxonomy' == $args['menu-item-type'] ) {
    455. 

  455. 			$original_parent = get_term_field( 'parent', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );
    456. 

  456. 			$original_title = get_term_field( 'name', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );
    457. 

  457. 		} elseif ( 'post_type' == $args['menu-item-type'] ) {
    458. 

  458. 

  459. 			$original_object = get_post( $args['menu-item-object-id'] );
    460. 

  460. 			$original_parent = (int) $original_object->post_parent;
    461. 

  461. 			$original_title = $original_object->post_title;
    462. 

  462. 		} elseif ( 'post_type_archive' == $args['menu-item-type'] ) {
    463. 

  463. 			$original_object = get_post_type_object( $args['menu-item-object'] );
    464. 

  464. 			if ( $original_object ) {
    465. 

  465. 				$original_title = $original_object->labels->archives;
    466. 

  466. 			}
    467. 

  467. 		}
    468. 

  468. 

  469. 		if ( $args['menu-item-title'] == $original_title )
    470. 

  470. 			$args['menu-item-title'] = '';
    471. 

  471. 

  472. 		// hack to get wp to create a post object when too many properties are empty
    473. 

  473. 		if ( '' ==  $args['menu-item-title'] && '' == $args['menu-item-description'] )
    474. 

  474. 			$args['menu-item-description'] = ' ';
    475. 

  475. 	}
    476. 

  476. 

  477. 	// Populate the menu item object
    478. 

  478. 	$post = array(
    479. 

  479. 		'menu_order' => $args['menu-item-position'],
    480. 

  480. 		'ping_status' => 0,
    481. 

  481. 		'post_content' => $args['menu-item-description'],
    482. 

  482. 		'post_excerpt' => $args['menu-item-attr-title'],
    483. 

  483. 		'post_parent' => $original_parent,
    484. 

  484. 		'post_title' => $args['menu-item-title'],
    485. 

  485. 		'post_type' => 'nav_menu_item',
    486. 

  486. 	);
    487. 

  487. 

  488. 	$update = 0 != $menu_item_db_id;
    489. 

  489. 

  490. 	// New menu item. Default is draft status
    491. 

  491. 	if ( ! $update ) {
    492. 

  492. 		$post['ID'] = 0;
    493. 

  493. 		$post['post_status'] = 'publish' == $args['menu-item-status'] ? 'publish' : 'draft';
    494. 

  494. 		$menu_item_db_id = wp_insert_post( $post );
    495. 

  495. 		if ( ! $menu_item_db_id	|| is_wp_error( $menu_item_db_id ) )
    496. 

  496. 			return $menu_item_db_id;
    497. 

  497. 

  498. 		/**
    499. 

  499. 		 * Fires immediately after a new navigation menu item has been added.
    500. 

  500. 		 *
    501. 

  501. 		 * @since 4.4.0
    502. 

  502. 		 *
    503. 

  503. 		 * @see wp_update_nav_menu_item()
    504. 

  504. 		 *
    505. 

  505. 		 * @param int   $menu_id         ID of the updated menu.
    506. 

  506. 		 * @param int   $menu_item_db_id ID of the new menu item.
    507. 

  507. 		 * @param array $args            An array of arguments used to update/add the menu item.
    508. 

  508. 		 */
    509. 

  509. 		do_action( 'wp_add_nav_menu_item', $menu_id, $menu_item_db_id, $args );
    510. 

  510. 	}
    511. 

  511. 

  512. 	// Associate the menu item with the menu term
    513. 

  513. 	// Only set the menu term if it isn't set to avoid unnecessary wp_get_object_terms()
    514. 

  514. 	 if ( $menu_id && ( ! $update || ! is_object_in_term( $menu_item_db_id, 'nav_menu', (int) $menu->term_id ) ) ) {
    515. 

  515. 		wp_set_object_terms( $menu_item_db_id, array( $menu->term_id ), 'nav_menu' );
    516. 

  516. 	}
    517. 

  517. 

  518. 	if ( 'custom' == $args['menu-item-type'] ) {
    519. 

  519. 		$args['menu-item-object-id'] = $menu_item_db_id;
    520. 

  520. 		$args['menu-item-object'] = 'custom';
    521. 

  521. 	}
    522. 

  522. 

  523. 	$menu_item_db_id = (int) $menu_item_db_id;
    524. 

  524. 

  525. 	update_post_meta( $menu_item_db_id, '_menu_item_type', sanitize_key($args['menu-item-type']) );
    526. 

  526. 	update_post_meta( $menu_item_db_id, '_menu_item_menu_item_parent', strval( (int) $args['menu-item-parent-id'] ) );
    527. 

  527. 	update_post_meta( $menu_item_db_id, '_menu_item_object_id', strval( (int) $args['menu-item-object-id'] ) );
    528. 

  528. 	update_post_meta( $menu_item_db_id, '_menu_item_object', sanitize_key($args['menu-item-object']) );
    529. 

  529. 	update_post_meta( $menu_item_db_id, '_menu_item_target', sanitize_key($args['menu-item-target']) );
    530. 

  530. 

  531. 	$args['menu-item-classes'] = array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-classes'] ) );
    532. 

  532. 	$args['menu-item-xfn'] = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-xfn'] ) ) );
    533. 

  533. 	update_post_meta( $menu_item_db_id, '_menu_item_classes', $args['menu-item-classes'] );
    534. 

  534. 	update_post_meta( $menu_item_db_id, '_menu_item_xfn', $args['menu-item-xfn'] );
    535. 

  535. 	update_post_meta( $menu_item_db_id, '_menu_item_url', esc_url_raw($args['menu-item-url']) );
    536. 

  536. 

  537. 	if ( 0 == $menu_id )
    538. 

  538. 		update_post_meta( $menu_item_db_id, '_menu_item_orphaned', (string) time() );
    539. 

  539. 	elseif ( get_post_meta( $menu_item_db_id, '_menu_item_orphaned' ) )
    540. 

  540. 		delete_post_meta( $menu_item_db_id, '_menu_item_orphaned' );
    541. 

  541. 

  542. 	// Update existing menu item. Default is publish status
    543. 

  543. 	if ( $update ) {
    544. 

  544. 		$post['ID'] = $menu_item_db_id;
    545. 

  545. 		$post['post_status'] = 'draft' == $args['menu-item-status'] ? 'draft' : 'publish';
    546. 

  546. 		wp_update_post( $post );
    547. 

  547. 	}
    548. 

  548. 

  549. 	/**
    550. 

  550. 	 * Fires after a navigation menu item has been updated.
    551. 

  551. 	 *
    552. 

  552. 	 * @since 3.0.0
    553. 

  553. 	 *
    554. 

  554. 	 * @see wp_update_nav_menu_item()
    555. 

  555. 	 *
    556. 

  556. 	 * @param int   $menu_id         ID of the updated menu.
    557. 

  557. 	 * @param int   $menu_item_db_id ID of the updated menu item.
    558. 

  558. 	 * @param array $args            An array of arguments used to update a menu item.
    559. 

  559. 	 */
    560. 

  560. 	do_action( 'wp_update_nav_menu_item', $menu_id, $menu_item_db_id, $args );
    561. 

  561. 

  562. 	return $menu_item_db_id;
    563. 

  563. }
    564. 

  564. 

  565. /**
    566. 

  566.  * Returns all navigation menu objects.
    567. 

  567.  *
    568. 

  568.  * @since 3.0.0
    569. 

  569.  * @since 4.1.0 Default value of the 'orderby' argument was changed from 'none'
    570. 

  570.  *              to 'name'.
    571. 

  571.  *
    572. 

  572.  * @param array $args Optional. Array of arguments passed on to get_terms().
    573. 

  573.  *                    Default empty array.
    574. 

  574.  * @return array Menu objects.
    575. 

  575.  */
    576. 

  576. function wp_get_nav_menus( $args = array() ) {
    577. 

  577. 	$defaults = array( 'hide_empty' => false, 'orderby' => 'name' );
    578. 

  578. 	$args = wp_parse_args( $args, $defaults );
    579. 

  579. 

  580. 	/**
    581. 

  581. 	 * Filters the navigation menu objects being returned.
    582. 

  582. 	 *
    583. 

  583. 	 * @since 3.0.0
    584. 

  584. 	 *
    585. 

  585. 	 * @see get_terms()
    586. 

  586. 	 *
    587. 

  587. 	 * @param array $menus An array of menu objects.
    588. 

  588. 	 * @param array $args  An array of arguments used to retrieve menu objects.
    589. 

  589. 	 */
    590. 

  590. 	return apply_filters( 'wp_get_nav_menus', get_terms( 'nav_menu',  $args), $args );
    591. 

  591. }
    592. 

  592. 

  593. /**
    594. 

  594.  * Return if a menu item is valid.
    595. 

  595.  *
    596. 

  596.  * @link https://core.trac.wordpress.org/ticket/13958
    597. 

  597.  *
    598. 

  598.  * @since 3.2.0
    599. 

  599.  * @access private
    600. 

  600.  *
    601. 

  601.  * @param object $item The menu item to check.
    602. 

  602.  * @return bool False if invalid, otherwise true.
    603. 

  603.  */
    604. 

  604. function _is_valid_nav_menu_item( $item ) {
    605. 

  605. 	return empty( $item->_invalid );
    606. 

  606. }
    607. 

  607. 

  608. /**
    609. 

  609.  * Retrieves all menu items of a navigation menu.
    610. 

  610.  *
    611. 

  611.  * Note: Most arguments passed to the `$args` parameter – save for 'output_key' – are
    612. 

  612.  * specifically for retrieving nav_menu_item posts from get_posts() and may only
    613. 

  613.  * indirectly affect the ultimate ordering and content of the resulting nav menu
    614. 

  614.  * items that get returned from this function.
    615. 

  615.  *
    616. 

  616.  * @since 3.0.0
    617. 

  617.  *
    618. 

  618.  * @global string $_menu_item_sort_prop
    619. 

  619.  * @staticvar array $fetched
    620. 

  620.  *
    621. 

  621.  * @param int|string|WP_Term $menu Menu ID, slug, name, or object.
    622. 

  622.  * @param array              $args {
    623. 

  623.  *     Optional. Arguments to pass to get_posts().
    624. 

  624.  *
    625. 

  625.  *     @type string $order       How to order nav menu items as queried with get_posts(). Will be ignored
    626. 

  626.  *                               if 'output' is ARRAY_A. Default 'ASC'.
    627. 

  627.  *     @type string $orderby     Field to order menu items by as retrieved from get_posts(). Supply an orderby
    628. 

  628.  *                               field via 'output_key' to affect the output order of nav menu items.
    629. 

  629.  *                               Default 'menu_order'.
    630. 

  630.  *     @type string $post_type   Menu items post type. Default 'nav_menu_item'.
    631. 

  631.  *     @type string $post_status Menu items post status. Default 'publish'.
    632. 

  632.  *     @type string $output      How to order outputted menu items. Default ARRAY_A.
    633. 

  633.  *     @type string $output_key  Key to use for ordering the actual menu items that get returned. Note that
    634. 

  634.  *                               that is not a get_posts() argument and will only affect output of menu items
    635. 

  635.  *                               processed in this function. Default 'menu_order'.
    636. 

  636.  *     @type bool   $nopaging    Whether to retrieve all menu items (true) or paginate (false). Default true.
    637. 

  637.  * }
    638. 

  638.  * @return false|array $items Array of menu items, otherwise false.
    639. 

  639.  */
    640. 

  640. function wp_get_nav_menu_items( $menu, $args = array() ) {
    641. 

  641. 	$menu = wp_get_nav_menu_object( $menu );
    642. 

  642. 

  643. 	if ( ! $menu ) {
    644. 

  644. 		return false;
    645. 

  645. 	}
    646. 

  646. 

  647. 	static $fetched = array();
    648. 

  648. 

  649. 	$items = get_objects_in_term( $menu->term_id, 'nav_menu' );
    650. 

  650. 	if ( is_wp_error( $items ) ) {
    651. 

  651. 		return false;
    652. 

  652. 	}
    653. 

  653. 

  654. 	$defaults = array( 'order' => 'ASC', 'orderby' => 'menu_order', 'post_type' => 'nav_menu_item',
    655. 

  655. 		'post_status' => 'publish', 'output' => ARRAY_A, 'output_key' => 'menu_order', 'nopaging' => true );
    656. 

  656. 	$args = wp_parse_args( $args, $defaults );
    657. 

  657. 	$args['include'] = $items;
    658. 

  658. 

  659. 	if ( ! empty( $items ) ) {
    660. 

  660. 		$items = get_posts( $args );
    661. 

  661. 	} else {
    662. 

  662. 		$items = array();
    663. 

  663. 	}
    664. 

  664. 

  665. 	// Get all posts and terms at once to prime the caches
    666. 

  666. 	if ( empty( $fetched[ $menu->term_id ] ) && ! wp_using_ext_object_cache() ) {
    667. 

  667. 		$fetched[$menu->term_id] = true;
    668. 

  668. 		$posts = array();
    669. 

  669. 		$terms = array();
    670. 

  670. 		foreach ( $items as $item ) {
    671. 

  671. 			$object_id = get_post_meta( $item->ID, '_menu_item_object_id', true );
    672. 

  672. 			$object    = get_post_meta( $item->ID, '_menu_item_object',    true );
    673. 

  673. 			$type      = get_post_meta( $item->ID, '_menu_item_type',      true );
    674. 

  674. 

  675. 			if ( 'post_type' == $type )
    676. 

  676. 				$posts[$object][] = $object_id;
    677. 

  677. 			elseif ( 'taxonomy' == $type)
    678. 

  678. 				$terms[$object][] = $object_id;
    679. 

  679. 		}
    680. 

  680. 

  681. 		if ( ! empty( $posts ) ) {
    682. 

  682. 			foreach ( array_keys($posts) as $post_type ) {
    683. 

  683. 				get_posts( array('post__in' => $posts[$post_type], 'post_type' => $post_type, 'nopaging' => true, 'update_post_term_cache' => false) );
    684. 

  684. 			}
    685. 

  685. 		}
    686. 

  686. 		unset($posts);
    687. 

  687. 

  688. 		if ( ! empty( $terms ) ) {
    689. 

  689. 			foreach ( array_keys($terms) as $taxonomy ) {
    690. 

  690. 				get_terms( $taxonomy, array(
    691. 

  691. 					'include' => $terms[ $taxonomy ],
    692. 

  692. 					'hierarchical' => false,
    693. 

  693. 				) );
    694. 

  694. 			}
    695. 

  695. 		}
    696. 

  696. 		unset($terms);
    697. 

  697. 	}
    698. 

  698. 

  699. 	$items = array_map( 'wp_setup_nav_menu_item', $items );
    700. 

  700. 

  701. 	if ( ! is_admin() ) { // Remove invalid items only in front end
    702. 

  702. 		$items = array_filter( $items, '_is_valid_nav_menu_item' );
    703. 

  703. 	}
    704. 

  704. 

  705. 	if ( ARRAY_A == $args['output'] ) {
    706. 

  706. 		$items = wp_list_sort( $items, array(
    707. 

  707. 			$args['output_key'] => 'ASC',
    708. 

  708. 		) );
    709. 

  709. 		$i = 1;
    710. 

  710. 		foreach ( $items as $k => $item ) {
    711. 

  711. 			$items[$k]->{$args['output_key']} = $i++;
    712. 

  712. 		}
    713. 

  713. 	}
    714. 

  714. 

  715. 	/**
    716. 

  716. 	 * Filters the navigation menu items being returned.
    717. 

  717. 	 *
    718. 

  718. 	 * @since 3.0.0
    719. 

  719. 	 *
    720. 

  720. 	 * @param array  $items An array of menu item post objects.
    721. 

  721. 	 * @param object $menu  The menu object.
    722. 

  722. 	 * @param array  $args  An array of arguments used to retrieve menu item objects.
    723. 

  723. 	 */
    724. 

  724. 	return apply_filters( 'wp_get_nav_menu_items', $items, $menu, $args );
    725. 

  725. }
    726. 

  726. 

  727. /**
    728. 

  728.  * Decorates a menu item object with the shared navigation menu item properties.
    729. 

  729.  *
    730. 

  730.  * Properties:
    731. 

  731.  * - ID:               The term_id if the menu item represents a taxonomy term.
    732. 

  732.  * - attr_title:       The title attribute of the link element for this menu item.
    733. 

  733.  * - classes:          The array of class attribute values for the link element of this menu item.
    734. 

  734.  * - db_id:            The DB ID of this item as a nav_menu_item object, if it exists (0 if it doesn't exist).
    735. 

  735.  * - description:      The description of this menu item.
    736. 

  736.  * - menu_item_parent: The DB ID of the nav_menu_item that is this item's menu parent, if any. 0 otherwise.
    737. 

  737.  * - object:           The type of object originally represented, such as "category," "post", or "attachment."
    738. 

  738.  * - object_id:        The DB ID of the original object this menu item represents, e.g. ID for posts and term_id for categories.
    739. 

  739.  * - post_parent:      The DB ID of the original object's parent object, if any (0 otherwise).
    740. 

  740.  * - post_title:       A "no title" label if menu item represents a post that lacks a title.
    741. 

  741.  * - target:           The target attribute of the link element for this menu item.
    742. 

  742.  * - title:            The title of this menu item.
    743. 

  743.  * - type:             The family of objects originally represented, such as "post_type" or "taxonomy."
    744. 

  744.  * - type_label:       The singular label used to describe this type of menu item.
    745. 

  745.  * - url:              The URL to which this menu item points.
    746. 

  746.  * - xfn:              The XFN relationship expressed in the link of this menu item.
    747. 

  747.  * - _invalid:         Whether the menu item represents an object that no longer exists.
    748. 

  748.  *
    749. 

  749.  * @since 3.0.0
    750. 

  750.  *
    751. 

  751.  * @param object $menu_item The menu item to modify.
    752. 

  752.  * @return object $menu_item The menu item with standard menu item properties.
    753. 

  753.  */
    754. 

  754. function wp_setup_nav_menu_item( $menu_item ) {
    755. 

  755. 	if ( isset( $menu_item->post_type ) ) {
    756. 

  756. 		if ( 'nav_menu_item' == $menu_item->post_type ) {
    757. 

  757. 			$menu_item->db_id = (int) $menu_item->ID;
    758. 

  758. 			$menu_item->menu_item_parent = ! isset( $menu_item->menu_item_parent ) ? get_post_meta( $menu_item->ID, '_menu_item_menu_item_parent', true ) : $menu_item->menu_item_parent;
    759. 

  759. 			$menu_item->object_id = ! isset( $menu_item->object_id ) ? get_post_meta( $menu_item->ID, '_menu_item_object_id', true ) : $menu_item->object_id;
    760. 

  760. 			$menu_item->object = ! isset( $menu_item->object ) ? get_post_meta( $menu_item->ID, '_menu_item_object', true ) : $menu_item->object;
    761. 

  761. 			$menu_item->type = ! isset( $menu_item->type ) ? get_post_meta( $menu_item->ID, '_menu_item_type', true ) : $menu_item->type;
    762. 

  762. 

  763. 			if ( 'post_type' == $menu_item->type ) {
    764. 

  764. 				$object = get_post_type_object( $menu_item->object );
    765. 

  765. 				if ( $object ) {
    766. 

  766. 					$menu_item->type_label = $object->labels->singular_name;
    767. 

  767. 				} else {
    768. 

  768. 					$menu_item->type_label = $menu_item->object;
    769. 

  769. 					$menu_item->_invalid = true;
    770. 

  770. 				}
    771. 

  771. 

  772. 				if ( 'trash' === get_post_status( $menu_item->object_id ) ) {
    773. 

  773. 					$menu_item->_invalid = true;
    774. 

  774. 				}
    775. 

  775. 

  776. 				$menu_item->url = get_permalink( $menu_item->object_id );
    777. 

  777. 

  778. 				$original_object = get_post( $menu_item->object_id );
    779. 

  779. 				/** This filter is documented in wp-includes/post-template.php */
    780. 

  780. 				$original_title = apply_filters( 'the_title', $original_object->post_title, $original_object->ID );
    781. 

  781. 

  782. 				if ( '' === $original_title ) {
    783. 

  783. 					/* translators: %d: ID of a post */
    784. 

  784. 					$original_title = sprintf( __( '#%d (no title)' ), $original_object->ID );
    785. 

  785. 				}
    786. 

  786. 

  787. 				$menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title;
    788. 

  788. 

  789. 			} elseif ( 'post_type_archive' == $menu_item->type ) {
    790. 

  790. 				$object =  get_post_type_object( $menu_item->object );
    791. 

  791. 				if ( $object ) {
    792. 

  792. 					$menu_item->title = '' == $menu_item->post_title ? $object->labels->archives : $menu_item->post_title;
    793. 

  793. 					$post_type_description = $object->description;
    794. 

  794. 				} else {
    795. 

  795. 					$menu_item->_invalid = true;
    796. 

  796. 					$post_type_description = '';
    797. 

  797. 				}
    798. 

  798. 

  799. 				$menu_item->type_label = __( 'Post Type Archive' );
    800. 

  800. 				$post_content = wp_trim_words( $menu_item->post_content, 200 );
    801. 

  801. 				$post_type_description = '' == $post_content ? $post_type_description : $post_content;
    802. 

  802. 				$menu_item->url = get_post_type_archive_link( $menu_item->object );
    803. 

  803. 			} elseif ( 'taxonomy' == $menu_item->type ) {
    804. 

  804. 				$object = get_taxonomy( $menu_item->object );
    805. 

  805. 				if ( $object ) {
    806. 

  806. 					$menu_item->type_label = $object->labels->singular_name;
    807. 

  807. 				} else {
    808. 

  808. 					$menu_item->type_label = $menu_item->object;
    809. 

  809. 					$menu_item->_invalid = true;
    810. 

  810. 				}
    811. 

  811. 

  812. 				$term_url = get_term_link( (int) $menu_item->object_id, $menu_item->object );
    813. 

  813. 				$menu_item->url = !is_wp_error( $term_url ) ? $term_url : '';
    814. 

  814. 

  815. 				$original_title = get_term_field( 'name', $menu_item->object_id, $menu_item->object, 'raw' );
    816. 

  816. 				if ( is_wp_error( $original_title ) )
    817. 

  817. 					$original_title = false;
    818. 

  818. 				$menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title;
    819. 

  819. 

  820. 			} else {
    821. 

  821. 				$menu_item->type_label = __('Custom Link');
    822. 

  822. 				$menu_item->title = $menu_item->post_title;
    823. 

  823. 				$menu_item->url = ! isset( $menu_item->url ) ? get_post_meta( $menu_item->ID, '_menu_item_url', true ) : $menu_item->url;
    824. 

  824. 			}
    825. 

  825. 

  826. 			$menu_item->target = ! isset( $menu_item->target ) ? get_post_meta( $menu_item->ID, '_menu_item_target', true ) : $menu_item->target;
    827. 

  827. 

  828. 			/**
    829. 

  829. 			 * Filters a navigation menu item's title attribute.
    830. 

  830. 			 *
    831. 

  831. 			 * @since 3.0.0
    832. 

  832. 			 *
    833. 

  833. 			 * @param string $item_title The menu item title attribute.
    834. 

  834. 			 */
    835. 

  835. 			$menu_item->attr_title = ! isset( $menu_item->attr_title ) ? apply_filters( 'nav_menu_attr_title', $menu_item->post_excerpt ) : $menu_item->attr_title;
    836. 

  836. 

  837. 			if ( ! isset( $menu_item->description ) ) {
    838. 

  838. 				/**
    839. 

  839. 				 * Filters a navigation menu item's description.
    840. 

  840. 				 *
    841. 

  841. 				 * @since 3.0.0
    842. 

  842. 				 *
    843. 

  843. 				 * @param string $description The menu item description.
    844. 

  844. 				 */
    845. 

  845. 				$menu_item->description = apply_filters( 'nav_menu_description', wp_trim_words( $menu_item->post_content, 200 ) );
    846. 

  846. 			}
    847. 

  847. 

  848. 			$menu_item->classes = ! isset( $menu_item->classes ) ? (array) get_post_meta( $menu_item->ID, '_menu_item_classes', true ) : $menu_item->classes;
    849. 

  849. 			$menu_item->xfn = ! isset( $menu_item->xfn ) ? get_post_meta( $menu_item->ID, '_menu_item_xfn', true ) : $menu_item->xfn;
    850. 

  850. 		} else {
    851. 

  851. 			$menu_item->db_id = 0;
    852. 

  852. 			$menu_item->menu_item_parent = 0;
    853. 

  853. 			$menu_item->object_id = (int) $menu_item->ID;
    854. 

  854. 			$menu_item->type = 'post_type';
    855. 

  855. 

  856. 			$object = get_post_type_object( $menu_item->post_type );
    857. 

  857. 			$menu_item->object = $object->name;
    858. 

  858. 			$menu_item->type_label = $object->labels->singular_name;
    859. 

  859. 

  860. 			if ( '' === $menu_item->post_title ) {
    861. 

  861. 				/* translators: %d: ID of a post */
    862. 

  862. 				$menu_item->post_title = sprintf( __( '#%d (no title)' ), $menu_item->ID );
    863. 

  863. 			}
    864. 

  864. 

  865. 			$menu_item->title = $menu_item->post_title;
    866. 

  866. 			$menu_item->url = get_permalink( $menu_item->ID );
    867. 

  867. 			$menu_item->target = '';
    868. 

  868. 

  869. 			/** This filter is documented in wp-includes/nav-menu.php */
    870. 

  870. 			$menu_item->attr_title = apply_filters( 'nav_menu_attr_title', '' );
    871. 

  871. 

  872. 			/** This filter is documented in wp-includes/nav-menu.php */
    873. 

  873. 			$menu_item->description = apply_filters( 'nav_menu_description', '' );
    874. 

  874. 			$menu_item->classes = array();
    875. 

  875. 			$menu_item->xfn = '';
    876. 

  876. 		}
    877. 

  877. 	} elseif ( isset( $menu_item->taxonomy ) ) {
    878. 

  878. 		$menu_item->ID = $menu_item->term_id;
    879. 

  879. 		$menu_item->db_id = 0;
    880. 

  880. 		$menu_item->menu_item_parent = 0;
    881. 

  881. 		$menu_item->object_id = (int) $menu_item->term_id;
    882. 

  882. 		$menu_item->post_parent = (int) $menu_item->parent;
    883. 

  883. 		$menu_item->type = 'taxonomy';
    884. 

  884. 

  885. 		$object = get_taxonomy( $menu_item->taxonomy );
    886. 

  886. 		$menu_item->object = $object->name;
    887. 

  887. 		$menu_item->type_label = $object->labels->singular_name;
    888. 

  888. 

  889. 		$menu_item->title = $menu_item->name;
    890. 

  890. 		$menu_item->url = get_term_link( $menu_item, $menu_item->taxonomy );
    891. 

  891. 		$menu_item->target = '';
    892. 

  892. 		$menu_item->attr_title = '';
    893. 

  893. 		$menu_item->description = get_term_field( 'description', $menu_item->term_id, $menu_item->taxonomy );
    894. 

  894. 		$menu_item->classes = array();
    895. 

  895. 		$menu_item->xfn = '';
    896. 

  896. 

  897. 	}
    898. 

  898. 

  899. 	/**
    900. 

  900. 	 * Filters a navigation menu item object.
    901. 

  901. 	 *
    902. 

  902. 	 * @since 3.0.0
    903. 

  903. 	 *
    904. 

  904. 	 * @param object $menu_item The menu item object.
    905. 

  905. 	 */
    906. 

  906. 	return apply_filters( 'wp_setup_nav_menu_item', $menu_item );
    907. 

  907. }
    908. 

  908. 

  909. /**
    910. 

  910.  * Get the menu items associated with a particular object.
    911. 

  911.  *
    912. 

  912.  * @since 3.0.0
    913. 

  913.  *
    914. 

  914.  * @param int    $object_id   The ID of the original object.
    915. 

  915.  * @param string $object_type The type of object, such as "taxonomy" or "post_type."
    916. 

  916.  * @param string $taxonomy    If $object_type is "taxonomy", $taxonomy is the name of the tax that $object_id belongs to
    917. 

  917.  * @return array The array of menu item IDs; empty array if none;
    918. 

  918.  */
    919. 

  919. function wp_get_associated_nav_menu_items( $object_id = 0, $object_type = 'post_type', $taxonomy = '' ) {
    920. 

  920. 	$object_id = (int) $object_id;
    921. 

  921. 	$menu_item_ids = array();
    922. 

  922. 

  923. 	$query = new WP_Query;
    924. 

  924. 	$menu_items = $query->query(
    925. 

  925. 		array(
    926. 

  926. 			'meta_key' => '_menu_item_object_id',
    927. 

  927. 			'meta_value' => $object_id,
    928. 

  928. 			'post_status' => 'any',
    929. 

  929. 			'post_type' => 'nav_menu_item',
    930. 

  930. 			'posts_per_page' => -1,
    931. 

  931. 		)
    932. 

  932. 	);
    933. 

  933. 	foreach ( (array) $menu_items as $menu_item ) {
    934. 

  934. 		if ( isset( $menu_item->ID ) && is_nav_menu_item( $menu_item->ID ) ) {
    935. 

  935. 			$menu_item_type = get_post_meta( $menu_item->ID, '_menu_item_type', true );
    936. 

  936. 			if (
    937. 

  937. 				'post_type' == $object_type &&
    938. 

  938. 				'post_type' == $menu_item_type
    939. 

  939. 			) {
    940. 

  940. 				$menu_item_ids[] = (int) $menu_item->ID;
    941. 

  941. 			} elseif (
    942. 

  942. 				'taxonomy' == $object_type &&
    943. 

  943. 				'taxonomy' == $menu_item_type &&
    944. 

  944. 				get_post_meta( $menu_item->ID, '_menu_item_object', true ) == $taxonomy
    945. 

  945. 			) {
    946. 

  946. 				$menu_item_ids[] = (int) $menu_item->ID;
    947. 

  947. 			}
    948. 

  948. 		}
    949. 

  949. 	}
    950. 

  950. 

  951. 	return array_unique( $menu_item_ids );
    952. 

  952. }
    953. 

  953. 

  954. /**
    955. 

  955.  * Callback for handling a menu item when its original object is deleted.
    956. 

  956.  *
    957. 

  957.  * @since 3.0.0
    958. 

  958.  * @access private
    959. 

  959.  *
    960. 

  960.  * @param int $object_id The ID of the original object being trashed.
    961. 

  961.  *
    962. 

  962.  */
    963. 

  963. function _wp_delete_post_menu_item( $object_id = 0 ) {
    964. 

  964. 	$object_id = (int) $object_id;
    965. 

  965. 

  966. 	$menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'post_type' );
    967. 

  967. 

  968. 	foreach ( (array) $menu_item_ids as $menu_item_id ) {
    969. 

  969. 		wp_delete_post( $menu_item_id, true );
    970. 

  970. 	}
    971. 

  971. }
    972. 

  972. 

  973. /**
    974. 

  974.  * Serves as a callback for handling a menu item when its original object is deleted.
    975. 

  975.  *
    976. 

  976.  * @since 3.0.0
    977. 

  977.  * @access private
    978. 

  978.  *
    979. 

  979.  * @param int    $object_id Optional. The ID of the original object being trashed. Default 0.
    980. 

  980.  * @param int    $tt_id     Term taxonomy ID. Unused.
    981. 

  981.  * @param string $taxonomy  Taxonomy slug.
    982. 

  982.  */
    983. 

  983. function _wp_delete_tax_menu_item( $object_id = 0, $tt_id, $taxonomy ) {
    984. 

  984. 	$object_id = (int) $object_id;
    985. 

  985. 

  986. 	$menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'taxonomy', $taxonomy );
    987. 

  987. 

  988. 	foreach ( (array) $menu_item_ids as $menu_item_id ) {
    989. 

  989. 		wp_delete_post( $menu_item_id, true );
    990. 

  990. 	}
    991. 

  991. }
    992. 

  992. 

  993. /**
    994. 

  994.  * Automatically add newly published page objects to menus with that as an option.
    995. 

  995.  *
    996. 

  996.  * @since 3.0.0
    997. 

  997.  * @access private
    998. 

  998.  *
    999. 

  999.  * @param string $new_status The new status of the post object.
    1000. 

  1000.  * @param string $old_status The old status of the post object.
    1001. 

  1001.  * @param object $post       The post object being transitioned from one status to another.
    1002. 

  1002.  */
    1003. 

  1003. function _wp_auto_add_pages_to_menu( $new_status, $old_status, $post ) {
    1004. 

  1004. 	if ( 'publish' != $new_status || 'publish' == $old_status || 'page' != $post->post_type )
    1005. 

  1005. 		return;
    1006. 

  1006. 	if ( ! empty( $post->post_parent ) )
    1007. 

  1007. 		return;
    1008. 

  1008. 	$auto_add = get_option( 'nav_menu_options' );
    1009. 

  1009. 	if ( empty( $auto_add ) || ! is_array( $auto_add ) || ! isset( $auto_add['auto_add'] ) )
    1010. 

  1010. 		return;
    1011. 

  1011. 	$auto_add = $auto_add['auto_add'];
    1012. 

  1012. 	if ( empty( $auto_add ) || ! is_array( $auto_add ) )
    1013. 

  1013. 		return;
    1014. 

  1014. 

  1015. 	$args = array(
    1016. 

  1016. 		'menu-item-object-id' => $post->ID,
    1017. 

  1017. 		'menu-item-object' => $post->post_type,
    1018. 

  1018. 		'menu-item-type' => 'post_type',
    1019. 

  1019. 		'menu-item-status' => 'publish',
    1020. 

  1020. 	);
    1021. 

  1021. 

  1022. 	foreach ( $auto_add as $menu_id ) {
    1023. 

  1023. 		$items = wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) );
    1024. 

  1024. 		if ( ! is_array( $items ) )
    1025. 

  1025. 			continue;
    1026. 

  1026. 		foreach ( $items as $item ) {
    1027. 

  1027. 			if ( $post->ID == $item->object_id )
    1028. 

  1028. 				continue 2;
    1029. 

  1029. 		}
    1030. 

  1030. 		wp_update_nav_menu_item( $menu_id, 0, $args );
    1031. 

  1031. 	}
    1032. 

  1032. }
    1033. 

  1033. 

  1034. /**
    1035. 

  1035.  * Delete auto-draft posts associated with the supplied changeset.
    1036. 

  1036.  *
    1037. 

  1037.  * @since 4.8.0
    1038. 

  1038.  * @access private
    1039. 

  1039.  *
    1040. 

  1040.  * @param int $post_id Post ID for the customize_changeset.
    1041. 

  1041.  */
    1042. 

  1042. function _wp_delete_customize_changeset_dependent_auto_drafts( $post_id ) {
    1043. 

  1043. 	$post = get_post( $post_id );
    1044. 

  1044. 

  1045. 	if ( ! $post || 'customize_changeset' !== $post->post_type ) {
    1046. 

  1046. 		return;
    1047. 

  1047. 	}
    1048. 

  1048. 

  1049. 	$data = json_decode( $post->post_content, true );
    1050. 

  1050. 	if ( empty( $data['nav_menus_created_posts']['value'] ) ) {
    1051. 

  1051. 		return;
    1052. 

  1052. 	}
    1053. 

  1053. 	remove_action( 'delete_post', '_wp_delete_customize_changeset_dependent_auto_drafts' );
    1054. 

  1054. 	foreach ( $data['nav_menus_created_posts']['value'] as $stub_post_id ) {
    1055. 

  1055. 		if ( empty( $stub_post_id ) ) {
    1056. 

  1056. 			continue;
    1057. 

  1057. 		}
    1058. 

  1058. 		if ( 'auto-draft' === get_post_status( $stub_post_id ) ) {
    1059. 

  1059. 			wp_delete_post( $stub_post_id, true );
    1060. 

  1060. 		} elseif ( 'draft' === get_post_status( $stub_post_id ) ) {
    1061. 

  1061. 			wp_trash_post( $stub_post_id );
    1062. 

  1062. 			delete_post_meta( $stub_post_id, '_customize_changeset_uuid' );
    1063. 

  1063. 		}
    1064. 

  1064. 	}
    1065. 

  1065. 	add_action( 'delete_post', '_wp_delete_customize_changeset_dependent_auto_drafts' );
    1066. 

  1066. }
    1067. 

  1067. 

  1068. /**
    1069. 

  1069.  * Handle menu config after theme change.
    1070. 

  1070.  *
    1071. 

  1071.  * @access private
    1072. 

  1072.  * @since 4.9.0
    1073. 

  1073.  */
    1074. 

  1074. function _wp_menus_changed() {
    1075. 

  1075. 	$old_nav_menu_locations    = get_option( 'theme_switch_menu_locations', array() );
    1076. 

  1076. 	$new_nav_menu_locations    = get_nav_menu_locations();
    1077. 

  1077. 	$mapped_nav_menu_locations = wp_map_nav_menu_locations( $new_nav_menu_locations, $old_nav_menu_locations );
    1078. 

  1078. 

  1079. 	set_theme_mod( 'nav_menu_locations', $mapped_nav_menu_locations );
    1080. 

  1080. 	delete_option( 'theme_switch_menu_locations' );
    1081. 

  1081. }
    1082. 

  1082. 

  1083. /**
    1084. 

  1084.  * Maps nav menu locations according to assignments in previously active theme.
    1085. 

  1085.  *
    1086. 

  1086.  * @since 4.9.0
    1087. 

  1087.  *
    1088. 

  1088.  * @param array $new_nav_menu_locations New nav menu locations assignments.
    1089. 

  1089.  * @param array $old_nav_menu_locations Old nav menu locations assignments.
    1090. 

  1090.  * @return array Nav menus mapped to new nav menu locations.
    1091. 

  1091.  */
    1092. 

  1092. function wp_map_nav_menu_locations( $new_nav_menu_locations, $old_nav_menu_locations ) {
    1093. 

  1093. 	$registered_nav_menus   = get_registered_nav_menus();
    1094. 

  1094. 	$new_nav_menu_locations = array_intersect_key( $new_nav_menu_locations, $registered_nav_menus );
    1095. 

  1095. 

  1096. 	// Short-circuit if there are no old nav menu location assignments to map.
    1097. 

  1097. 	if ( empty( $old_nav_menu_locations ) ) {
    1098. 

  1098. 		return $new_nav_menu_locations;
    1099. 

  1099. 	}
    1100. 

  1100. 

  1101. 	// If old and new theme have just one location, map it and we're done.
    1102. 

  1102. 	if ( 1 === count( $old_nav_menu_locations ) && 1 === count( $registered_nav_menus ) ) {
    1103. 

  1103. 		$new_nav_menu_locations[ key( $registered_nav_menus ) ] = array_pop( $old_nav_menu_locations );
    1104. 

  1104. 		return $new_nav_menu_locations;
    1105. 

  1105. 	}
    1106. 

  1106. 

  1107. 	$old_locations = array_keys( $old_nav_menu_locations );
    1108. 

  1108. 

  1109. 	// Map locations with the same slug.
    1110. 

  1110. 	foreach ( $registered_nav_menus as $location => $name ) {
    1111. 

  1111. 		if ( in_array( $location, $old_locations, true ) ) {
    1112. 

  1112. 			$new_nav_menu_locations[ $location ] = $old_nav_menu_locations[ $location ];
    1113. 

  1113. 			unset( $old_nav_menu_locations[ $location ] );
    1114. 

  1114. 		}
    1115. 

  1115. 	}
    1116. 

  1116. 

  1117. 	// If there are no old nav menu locations left, then we're done.
    1118. 

  1118. 	if ( empty( $old_nav_menu_locations ) ) {
    1119. 

  1119. 		return $new_nav_menu_locations;
    1120. 

  1120. 	}
    1121. 

  1121. 

  1122. 	/*
    1123. 

  1123. 	 * If old and new theme both have locations that contain phrases
    1124. 

  1124. 	 * from within the same group, make an educated guess and map it.
    1125. 

  1125. 	 */
    1126. 

  1126. 	$common_slug_groups = array(
    1127. 

  1127. 		array( 'primary', 'menu-1', 'main', 'header', 'navigation', 'top' ),
    1128. 

  1128. 		array( 'secondary', 'menu-2', 'footer', 'subsidiary', 'bottom' ),
    1129. 

  1129. 		array( 'social' ),
    1130. 

  1130. 	);
    1131. 

  1131. 

  1132. 	// Go through each group...
    1133. 

  1133. 	foreach ( $common_slug_groups as $slug_group ) {
    1134. 

  1134. 

  1135. 		// ...and see if any of these slugs...
    1136. 

  1136. 		foreach ( $slug_group as $slug ) {
    1137. 

  1137. 

  1138. 			// ...and any of the new menu locations...
    1139. 

  1139. 			foreach ( $registered_nav_menus as $new_location => $name ) {
    1140. 

  1140. 

  1141. 				// ...actually match!
    1142. 

  1142. 				if ( false === stripos( $new_location, $slug ) && false === stripos( $slug, $new_location ) ) {
    1143. 

  1143. 					continue;
    1144. 

  1144. 				}
    1145. 

  1145. 

  1146. 				// Then see if any of the old locations...
    1147. 

  1147. 				foreach ( $old_nav_menu_locations as $location => $menu_id ) {
    1148. 

  1148. 

  1149. 					// ...and any slug in the same group...
    1150. 

  1150. 					foreach ( $slug_group as $slug ) {
    1151. 

  1151. 

  1152. 						// ... have a match as well.
    1153. 

  1153. 						if ( false === stripos( $location, $slug ) && false === stripos( $slug, $location ) ) {
    1154. 

  1154. 							continue;
    1155. 

  1155. 						}
    1156. 

  1156. 

  1157. 						// Make sure this location wasn't mapped and removed previously.
    1158. 

  1158. 						if ( ! empty( $old_nav_menu_locations[ $location ] ) ) {
    1159. 

  1159. 

  1160. 							// We have a match that can be mapped!
    1161. 

  1161. 							$new_nav_menu_locations[ $new_location ] = $old_nav_menu_locations[ $location ];
    1162. 

  1162. 

  1163. 							// Remove the mapped location so it can't be mapped again.
    1164. 

  1164. 							unset( $old_nav_menu_locations[ $location ] );
    1165. 

  1165. 

  1166. 							// Go back and check the next new menu location.
    1167. 

  1167. 							continue 3;
    1168. 

  1168. 						}
    1169. 

  1169. 					} // endforeach ( $slug_group as $slug )
    1170. 

  1170. 				} // endforeach ( $old_nav_menu_locations as $location => $menu_id )
    1171. 

  1171. 			} // endforeach foreach ( $registered_nav_menus as $new_location => $name )
    1172. 

  1172. 		} // endforeach ( $slug_group as $slug )
    1173. 

  1173. 	} // endforeach ( $common_slug_groups as $slug_group )
    1174. 

  1174. 

  1175. 	return $new_nav_menu_locations;
    1176. 

  1176. }
    1177.