--- /dev/null
+<?php
+
+namespace Drupal\ctools_wizard_test\Form;
+
+
+use Drupal\Core\Form\FormBase;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Simple wizard step form.
+ */
+class OneForm extends FormBase {
+
+ /**
+ * Returns a unique string identifying the form.
+ *
+ * @return string
+ * The unique string identifying the form.
+ */
+ public function getFormId() {
+ return 'ctools_wizard_test_one_form';
+ }
+
+ /**
+ * Form constructor.
+ *
+ * @param array $form
+ * An associative array containing the structure of the form.
+ * @param \Drupal\Core\Form\FormStateInterface $form_state
+ * The current state of the form.
+ *
+ * @return array
+ * The form structure.
+ */
+ public function buildForm(array $form, FormStateInterface $form_state) {
+ $cached_values = $form_state->getTemporaryValue('wizard');
+ $form['one'] = [
+ '#title' => $this->t('One'),
+ '#type' => 'textfield',
+ '#default_value' => !empty($cached_values['one']) ? $cached_values['one'] : '',
+ ];
+ $form['dynamic'] = [
+ '#title' => $this->t('Dynamic value'),
+ '#type' => 'item',
+ '#markup' => !empty($cached_values['dynamic']) ? $cached_values['dynamic'] : '',
+ ];
+ return $form;
+ }
+
+ /**
+ * Form submission handler.
+ *
+ * @param array $form
+ * An associative array containing the structure of the form.
+ * @param \Drupal\Core\Form\FormStateInterface $form_state
+ * The current state of the form.
+ */
+ public function submitForm(array &$form, FormStateInterface $form_state) {
+ $keys = array(
+ 'one',
+ );
+ $cached_values = $form_state->getTemporaryValue('wizard');
+ foreach ($keys as $key) {
+ $cached_values[$key] = $form_state->getValue($key);
+ }
+ $form_state->setTemporaryValue('wizard', $cached_values);
+
+ drupal_set_message($this->t('Dynamic value submitted: @value', ['@value' => $cached_values['dynamic']]));;
+ }
+
+}