WizardTest.php

<?php

namespace Drupal\ctools_wizard_test\Wizard;

use Drupal\Core\Form\FormStateInterface;
use Drupal\ctools\Wizard\FormWizardBase;

/**
 *
 */
class WizardTest extends FormWizardBase {
    
    /**
     * {@inheritdoc}
     */
    public function getWizardLabel() {
        return $this->t('Wizard Information');
    }
    
    /**
     * {@inheritdoc}
     */
    public function getMachineLabel() {
        return $this->t('Wizard Test Name');
    }
    
    /**
     * {@inheritdoc}
     */
    public function getOperations($cached_values) {
        return [
            'one' => [
                'form' => 'Drupal\\ctools_wizard_test\\Form\\OneForm',
                'title' => $this->t('Form One'),
                'values' => [
                    'dynamic' => 'Xylophone',
                ],
                'validate' => [
                    '::stepOneValidate',
                ],
                'submit' => [
                    '::stepOneSubmit',
                ],
            ],
            'two' => [
                'form' => 'Drupal\\ctools_wizard_test\\Form\\TwoForm',
                'title' => $this->t('Form Two'),
                'values' => [
                    'dynamic' => 'Zebra',
                ],
            ],
        ];
    }
    
    /**
     * Validation callback for the first step.
     */
    public function stepOneValidate($form, FormStateInterface $form_state) {
        if ($form_state->getValue('one') == 'wrong') {
            $form_state->setErrorByName('one', $this->t('Cannot set the value to "wrong".'));
        }
    }
    
    /**
     * Submission callback for the first step.
     */
    public function stepOneSubmit($form, FormStateInterface $form_state) {
        $cached_values = $form_state->getTemporaryValue('wizard');
        if ($form_state->getValue('one') == 'magic') {
            $cached_values['one'] = 'Abraham';
        }
        $form_state->setTemporaryValue('wizard', $cached_values);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getRouteName() {
        return 'ctools.wizard.test.step';
    }
    
    /**
     * {@inheritdoc}
     */
    public function finish(array &$form, FormStateInterface $form_state) {
        $cached_values = $form_state->getTemporaryValue('wizard');
        $this->messenger()
            ->addMessage($this->t('Value One: @one', [
            '@one' => $cached_values['one'],
        ]));
        $this->messenger()
            ->addMessage($this->t('Value Two: @two', [
            '@two' => $cached_values['two'],
        ]));
        parent::finish($form, $form_state);
    }

}