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form-nav-menu.php 7.9KB

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  1. <?php
  2. if ( ! defined( 'ABSPATH' ) ) {
  3. exit; // Exit if accessed directly
  4. }
  5. if ( ! class_exists( 'acf_form_nav_menu' ) ) :
  6. class acf_form_nav_menu {
  7. /*
  8. * __construct
  9. *
  10. * This function will setup the class functionality
  11. *
  12. * @type function
  13. * @date 5/03/2014
  14. * @since 5.0.0
  15. *
  16. * @param n/a
  17. * @return n/a
  18. */
  19. function __construct() {
  20. // actions
  21. add_action( 'admin_enqueue_scripts', array( $this, 'admin_enqueue_scripts' ) );
  22. add_action( 'wp_update_nav_menu', array( $this, 'update_nav_menu' ) );
  23. add_action( 'acf/validate_save_post', array( $this, 'acf_validate_save_post' ), 5 );
  24. add_action( 'wp_nav_menu_item_custom_fields', array( $this, 'wp_nav_menu_item_custom_fields' ), 10, 5 );
  25. // filters
  26. add_filter( 'wp_get_nav_menu_items', array( $this, 'wp_get_nav_menu_items' ), 10, 3 );
  27. add_filter( 'wp_edit_nav_menu_walker', array( $this, 'wp_edit_nav_menu_walker' ), 10, 2 );
  28. }
  29. /*
  30. * admin_enqueue_scripts
  31. *
  32. * This action is run after post query but before any admin script / head actions.
  33. * It is a good place to register all actions.
  34. *
  35. * @type action (admin_enqueue_scripts)
  36. * @date 26/01/13
  37. * @since 3.6.0
  38. *
  39. * @param N/A
  40. * @return N/A
  41. */
  42. function admin_enqueue_scripts() {
  43. // validate screen
  44. if ( ! acf_is_screen( 'nav-menus' ) ) {
  45. return;
  46. }
  47. // load acf scripts
  48. acf_enqueue_scripts();
  49. // actions
  50. add_action( 'admin_footer', array( $this, 'admin_footer' ), 1 );
  51. }
  52. /**
  53. * wp_nav_menu_item_custom_fields
  54. *
  55. * description
  56. *
  57. * @date 30/7/18
  58. * @since 5.6.9
  59. *
  60. * @param type $var Description. Default.
  61. * @return type Description.
  62. */
  63. function wp_nav_menu_item_custom_fields( $item_id, $item, $depth, $args, $id = '' ) {
  64. // vars
  65. $prefix = "menu-item-acf[$item_id]";
  66. // get field groups
  67. $field_groups = acf_get_field_groups(
  68. array(
  69. 'nav_menu_item' => $item->type,
  70. 'nav_menu_item_id' => $item_id,
  71. 'nav_menu_item_depth' => $depth,
  72. )
  73. );
  74. // render
  75. if ( ! empty( $field_groups ) ) {
  76. // open
  77. echo '<div class="acf-menu-item-fields acf-fields -clear">';
  78. // loop
  79. foreach ( $field_groups as $field_group ) {
  80. // load fields
  81. $fields = acf_get_fields( $field_group );
  82. // bail if not fields
  83. if ( empty( $fields ) ) {
  84. continue;
  85. }
  86. // change prefix
  87. acf_prefix_fields( $fields, $prefix );
  88. // render
  89. acf_render_fields( $fields, $item_id, 'div', $field_group['instruction_placement'] );
  90. }
  91. // close
  92. echo '</div>';
  93. // Trigger append for newly created menu item (via AJAX)
  94. if ( acf_is_ajax( 'add-menu-item' ) ) : ?>
  95. <script type="text/javascript">
  96. (function($) {
  97. acf.doAction('append', $('#menu-item-settings-<?php echo $item_id; ?>') );
  98. })(jQuery);
  99. </script>
  100. <?php
  101. endif;
  102. }
  103. }
  104. /*
  105. * update_nav_menu
  106. *
  107. * description
  108. *
  109. * @type function
  110. * @date 26/5/17
  111. * @since 5.6.0
  112. *
  113. * @param $post_id (int)
  114. * @return $post_id (int)
  115. */
  116. function update_nav_menu( $menu_id ) {
  117. // vars
  118. $post_id = 'term_' . $menu_id;
  119. // verify and remove nonce
  120. if ( ! acf_verify_nonce( 'nav_menu' ) ) {
  121. return $menu_id;
  122. }
  123. // validate and show errors
  124. acf_validate_save_post( true );
  125. // save
  126. acf_save_post( $post_id );
  127. // save nav menu items
  128. $this->update_nav_menu_items( $menu_id );
  129. }
  130. /*
  131. * update_nav_menu_items
  132. *
  133. * description
  134. *
  135. * @type function
  136. * @date 26/5/17
  137. * @since 5.6.0
  138. *
  139. * @param $post_id (int)
  140. * @return $post_id (int)
  141. */
  142. function update_nav_menu_items( $menu_id ) {
  143. // bail ealry if not set
  144. if ( empty( $_POST['menu-item-acf'] ) ) {
  145. return;
  146. }
  147. // loop
  148. foreach ( $_POST['menu-item-acf'] as $post_id => $values ) {
  149. acf_save_post( $post_id, $values );
  150. }
  151. }
  152. /**
  153. * wp_get_nav_menu_items
  154. *
  155. * WordPress does not provide an easy way to find the current menu being edited.
  156. * This function listens to when a menu's items are loaded and stores the menu.
  157. * Needed on nav-menus.php page for new menu with no items
  158. *
  159. * @date 23/2/18
  160. * @since 5.6.9
  161. *
  162. * @param type $var Description. Default.
  163. * @return type Description.
  164. */
  165. function wp_get_nav_menu_items( $items, $menu, $args ) {
  166. acf_set_data( 'nav_menu_id', $menu->term_id );
  167. return $items;
  168. }
  169. /**
  170. * Called when WP renders a menu edit form.
  171. * Used to set global data and customize the Walker class.
  172. *
  173. * @date 26/5/17
  174. * @since 5.6.0
  175. *
  176. * @param string $class The walker class to use. Default 'Walker_Nav_Menu_Edit'.
  177. * @param int $menu_id ID of the menu being rendered.
  178. * @return string
  179. */
  180. function wp_edit_nav_menu_walker( $class, $menu_id = 0 ) {
  181. // update data (needed for ajax location rules to work)
  182. acf_set_data( 'nav_menu_id', $menu_id );
  183. // Use custom walker class to inject "wp_nav_menu_item_custom_fields" action prioir to WP 5.4.
  184. if ( acf_version_compare( 'wp', '<', '5.3.99' ) ) {
  185. acf_include( 'includes/walkers/class-acf-walker-nav-menu-edit.php' );
  186. return 'ACF_Walker_Nav_Menu_Edit';
  187. }
  188. // Return class.
  189. return $class;
  190. }
  191. /*
  192. * acf_validate_save_post
  193. *
  194. * This function will loop over $_POST data and validate
  195. *
  196. * @type action 'acf/validate_save_post' 5
  197. * @date 7/09/2016
  198. * @since 5.4.0
  199. *
  200. * @param n/a
  201. * @return n/a
  202. */
  203. function acf_validate_save_post() {
  204. // bail ealry if not set
  205. if ( empty( $_POST['menu-item-acf'] ) ) {
  206. return;
  207. }
  208. // loop
  209. foreach ( $_POST['menu-item-acf'] as $post_id => $values ) {
  210. // vars
  211. $prefix = 'menu-item-acf[' . $post_id . ']';
  212. // validate
  213. acf_validate_values( $values, $prefix );
  214. }
  215. }
  216. /*
  217. * admin_footer
  218. *
  219. * This function will add some custom HTML to the footer of the edit page
  220. *
  221. * @type function
  222. * @date 11/06/2014
  223. * @since 5.0.0
  224. *
  225. * @param n/a
  226. * @return n/a
  227. */
  228. function admin_footer() {
  229. // vars
  230. $nav_menu_id = acf_get_data( 'nav_menu_id' );
  231. $post_id = 'term_' . $nav_menu_id;
  232. // get field groups
  233. $field_groups = acf_get_field_groups(
  234. array(
  235. 'nav_menu' => $nav_menu_id,
  236. )
  237. );
  238. ?>
  239. <div id="tmpl-acf-menu-settings" style="display: none;">
  240. <?php
  241. // data (always needed to save nav menu items)
  242. acf_form_data(
  243. array(
  244. 'screen' => 'nav_menu',
  245. 'post_id' => $post_id,
  246. 'ajax' => 1,
  247. )
  248. );
  249. // render
  250. if ( ! empty( $field_groups ) ) {
  251. // loop
  252. foreach ( $field_groups as $field_group ) {
  253. $fields = acf_get_fields( $field_group );
  254. echo '<div class="acf-menu-settings -' . $field_group['style'] . '">';
  255. echo '<h2>' . $field_group['title'] . '</h2>';
  256. echo '<div class="acf-fields -left -clear">';
  257. acf_render_fields( $fields, $post_id, 'div', $field_group['instruction_placement'] );
  258. echo '</div>';
  259. echo '</div>';
  260. }
  261. }
  262. ?>
  263. </div>
  264. <script type="text/javascript">
  265. (function($) {
  266. // append html
  267. var html = $('#tmpl-acf-menu-settings').html();
  268. $('#tmpl-acf-menu-settings').remove();
  269. $('#post-body-content').append( html );
  270. // avoid WP over-writing $_POST data
  271. // - https://core.trac.wordpress.org/ticket/41502#ticket
  272. $(document).on('submit', '#update-nav-menu', function() {
  273. // vars
  274. var $form = $(this);
  275. var $input = $('input[name="nav-menu-data"]');
  276. // decode json
  277. var json = $form.serializeArray();
  278. var json2 = [];
  279. // loop
  280. $.each( json, function( i, pair ) {
  281. // avoid nesting (unlike WP)
  282. if( pair.name === 'nav-menu-data' ) return;
  283. // bail early if is 'acf[' input
  284. if( pair.name.indexOf('acf[') > -1 ) return;
  285. // append
  286. json2.push( pair );
  287. });
  288. // update
  289. $input.val( JSON.stringify(json2) );
  290. });
  291. })(jQuery);
  292. </script>
  293. <?php
  294. }
  295. }
  296. acf_new_instance( 'acf_form_nav_menu' );
  297. endif;
  298. ?>