';
+ return $output;
+}
+
+// adds login and out links to menus "site-loggedin" and "site-loggedout"
+function sandbox_nav_menu_items($items, $args){
+ if ( is_user_logged_in() ) {
+ if ( $args->menu->slug === 'site-loggedin' ) {
+ // add logout link to the end of the menu
+ $logout_class = 'menu-item-logout menu-item menu-item-type-custom menu-item-object-custom';
+ $items .= '
' . wp_loginout(get_permalink(), false) . '
';
+ }
+ } elseif ( $args->menu->slug === 'site-loggedout' ) {
+ // add login link to the begin of the menu
+ $login_class = 'menu-item-login menu-item menu-item-type-custom menu-item-object-custom';
+ $items = '
' . wp_loginout(get_permalink(), false) . '
' . $items;
+ }
+ return $items;
+}
+
+/**
+ * user edit ajax system
+ * =====================
+ * passwords strenght meter taken from:
+ * https://code.tutsplus.com/articles/using-the-included-password-strength-meter-script-in-wordpress--wp-34736
+ * https://github.com/WordPress/WordPress/blob/master/wp-admin/js/user-profile.js#L223
+ * ajax idea:
+ * https://wordpress.stackexchange.com/questions/274778/updating-user-profile-with-ajax-not-working
+ * form field validation:
+ * https://itnext.io/https-medium-com-joshstudley-form-field-validation-with-html-and-a-little-javascript-1bda6a4a4c8c
+ * page template idea:
+ * https://wordpress.stackexchange.com/questions/9775/how-to-edit-a-user-profile-on-the-front-end
+ */
+function sandbox_ajax_user_edit(){
+ check_ajax_referer('sandbox_ajax_call', 'verify');
+
+ // list of valid field names
+ $fields = array('user_login', 'first_name', 'last_name', 'nickname', 'display_name', 'pass1');
+
+ if ( isset($_POST['field_name']) ) {
+ $field_name = $_POST['field_name'];
+
+ if ( in_array($field_name, $fields) ) { // valid field
+ if ( isset($_POST[$field_name]) ) { // field value is set
+ $value = filter_var(trim($_POST[$_POST['field_name']]), FILTER_SANITIZE_STRING);
+ $pattern = '/[A-Za-z0-9 ]{3,32}/';
+ if ( $_POST['field_name'] === 'nickname' ) {
+ $pattern = '/[a-zA-Z0-9-_ ]{3,32}/';
+ }
+ if ( $_POST['field_name'] === 'pass1' ) {
+ $pattern = '/^[^\\\\]*$/';
+ }
+ if ( preg_match($pattern, $value) ) { // check valid pattern
+ $current_user = wp_get_current_user();
+ // reset $_POST
+ $_POST = array(
+ 'email' => $current_user->user_email,
+ );
+ if ( $field_name !== 'nickname' ) {
+ $_POST['nickname'] = $current_user->nickname;
+ }
+ // readd value
+ $_POST[$field_name] = $value;
+ if ( $field_name === 'pass1' ) {
+ $_POST['pass2'] = $value;
+ }
+ $edited_user = edit_user($current_user->ID);
+ if ( gettype($edited_user) === "integer" ) {
+ $json = array('error' => false, 'message' => 'Value "' . $value . '" for field "' . $field_name . '" was saved');
+ } else {
+ $json = array('error' => true, 'debug' => array('user_edit' => $edited_user), 'message' => 'User was not saved, look at "debug" array');
+ }
+ } else {
+ $json = array('error' => true, 'message' => 'Value for field "' . $_POST['field_name'] . '" is not valid');
+ }
+ } else {
+ $json = array('error' => true, 'message' => 'No value for field "' . $_POST['field_name'] . '" sent');
+ }
+ } else {
+ $json = array('error' => true, 'message' => 'Given fieldname "' . $_POST['field_name'] . '" is not valid');
+ }
+ } else {
+ $json = array('error' => true, 'message' => 'No "field" Param fieldname sent');
+ }
+ wp_send_json($json);
+}
+
+// Change Wordpress email subject
+function sandbox_mail_from_name($name){
+ return get_bloginfo('name', 'display');
+}
+
+/**
+ * Sort countries list by name instead country-iso-code
+ * https://wordpress.org/support/topic/excellent-9087/
+ */
+function sandbox_listo_ordered($data){
+ sort($data);
+ return $data;
+}
+
+/**
+ * filter values of form tags to email
+ *
+ * @param $tag_replace string to change
+ * @param $submitted an array containing all submitted fields
+ * @param $cf7_key is a unique string key to identify your form, which you can find in your form table in the dashboard.
+ */
+function sandbox_cf7_mailtag_email_updates($tag_replace, $submitted, $cf7_key){
+ if ( $cf7_key == 'free-trial' ) {
+ if ( $tag_replace === '' ) { // empty means no
+ $tag_replace = 'no'; //change the email-updates.
+ }
+ }
+ return $tag_replace;
+}
+
+function sandbox_smart_grid_register_styles(){
+ // wp_deregister_style('cf7-grid-layout');
+}
+
+/**
+ * Site Widgets
+ * =============
+ */
+
+/**
+ * custom faq navigation widget
+ * ============================
+ * requires the post-type "faq"
+ * requires the taxonomy "topic"
+ */
+class sandbox_faq_nav_widget extends WP_Widget {
+
+ public function __construct() {
+ /* Widget settings. */
+ $widget_ops = array('classname' => 'faq-navigation', 'description' => 'Displays the FAQ navigation.');
+
+ /* Widget control settings. */
+ $control_ops = array('width' => 300, 'height' => 350, 'id_base' => 'faq-navigation');
+
+ /* Create the widget. */
+ parent::__construct('faq-navigation', 'FAQ Navigation', $widget_ops, $control_ops);
+ }
+
+ // processes widget options to be saved
+ public function update($new_instance, $old_instance) {
+ $instance = $old_instance;
+ $instance['title'] = strip_tags($new_instance['title']);
+ return $instance;
+ }
+
+ // outputs the content of the widget
+ public function widget($args, $instance) {
+ sandbox_faq_nav($args, $instance);
+ }
+
+ // outputs the options form on admin
+ public function form($instance) {
+ $title = esc_attr($instance['title']);
+
+ ?>