Upload folder via GUI - inc

inc/classes/class-builder.php

@@ -0,0 +1,44 @@
+<?php
+if (!defined('ABSPATH')) exit;
+class WMF_Builder {
+    private static $instance=null;
+    public static function instance() {
+        if(is_null(self::$instance)){self::$instance=new self();self::$instance->hook();}
+        return self::$instance;
+    }
+    public function hook() {
+        add_action('wp_ajax_wmf_get_field_settings',array($this,'ajax_field_settings'));
+        add_action('wp_ajax_wmf_preview_form',       array($this,'ajax_preview'));
+    }
+    public function ajax_field_settings() {
+        check_ajax_referer('wmf_admin','nonce');
+        if(!current_user_can('manage_options')) wp_die();
+        $type=sanitize_text_field($_POST['field_type']??'');
+        $field=json_decode(stripslashes($_POST['field_data']??'{}'),true);
+        $obj=wmf_get_field($type);
+        if(!$obj) wp_send_json_error('Unbekannter Feldtyp: '.$type);
+        ob_start(); $obj->settings_panel($field); $html=ob_get_clean();
+        wp_send_json_success(array('html'=>$html));
+    }
+    public function ajax_preview() {
+        check_ajax_referer('wmf_admin','nonce');
+        if(!current_user_can('manage_options')) wp_die();
+        $form_id=intval($_POST['form_id']??0);
+        $fields=json_decode(stripslashes($_POST['fields']??'[]'),true);
+        $meta=wmf_get_form_meta($form_id);
+        $meta['fields']=$fields;
+        ob_start();
+        echo '<div class="wmf-preview-wrap">';
+        foreach($fields as $field) {
+            $obj=wmf_get_field($field['type']??'');
+            if(!$obj) continue;
+            echo '<div class="wmf-field-wrap">';
+            $obj->render($field,'');
+            echo '</div>';
+        }
+        echo '<div class="wmf-submit-wrap"><button type="button" class="wmf-submit-button" disabled>'.esc_html($meta['submit_label']?:'Absenden').'</button></div>';
+        echo '</div>';
+        $html=ob_get_clean();
+        wp_send_json_success(array('html'=>$html));
+    }
+}