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msd2/wordpress/wp-admin/js/user-suggest.js

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+/**
+ * Suggests users in a multisite environment.
+ *
+ * For input fields where the admin can select a user based on email or
+ * username, this script shows an autocompletion menu for these inputs. Should
+ * only be used in a multisite environment. Only users in the currently active
+ * site are shown.
+ *
+ * @since 3.4.0
+ * @output wp-admin/js/user-suggest.js
+ */
+
+/* global ajaxurl, current_site_id, isRtl */
+
+(function( $ ) {
+	var id = ( typeof current_site_id !== 'undefined' ) ? '&site_id=' + current_site_id : '';
+	$(document).ready( function() {
+		var position = { offset: '0, -1' };
+		if ( typeof isRtl !== 'undefined' && isRtl ) {
+			position.my = 'right top';
+			position.at = 'right bottom';
+		}
+
+		/**
+		 * Adds an autocomplete function to input fields marked with the class
+		 * 'wp-suggest-user'.
+		 *
+		 * A minimum of two characters is required to trigger the suggestions. The
+		 * autocompletion menu is shown at the left bottom of the input field. On
+		 * RTL installations, it is shown at the right top. Adds the class 'open' to
+		 * the input field when the autocompletion menu is shown.
+		 *
+		 * Does a backend call to retrieve the users.
+		 *
+		 * Optional data-attributes:
+		 * - data-autocomplete-type (add, search)
+		 *   The action that is going to be performed: search for existing users
+		 *   or add a new one. Default: add
+		 * - data-autocomplete-field (user_login, user_email)
+		 *   The field that is returned as the value for the suggestion.
+		 *   Default: user_login
+		 *
+		 * @see wp-admin/includes/admin-actions.php:wp_ajax_autocomplete_user()
+		 */
+		$( '.wp-suggest-user' ).each( function(){
+			var $this = $( this ),
+				autocompleteType = ( typeof $this.data( 'autocompleteType' ) !== 'undefined' ) ? $this.data( 'autocompleteType' ) : 'add',
+				autocompleteField = ( typeof $this.data( 'autocompleteField' ) !== 'undefined' ) ? $this.data( 'autocompleteField' ) : 'user_login';
+
+			$this.autocomplete({
+				source:    ajaxurl + '?action=autocomplete-user&autocomplete_type=' + autocompleteType + '&autocomplete_field=' + autocompleteField + id,
+				delay:     500,
+				minLength: 2,
+				position:  position,
+				open: function() {
+					$( this ).addClass( 'open' );
+				},
+				close: function() {
+					$( this ).removeClass( 'open' );
+				}
+			});
+		});
+	});
+})( jQuery );