--- /dev/null
+<?php
+
+namespace Drupal\ctools\Form;
+
+
+use Drupal\Core\Ajax\AjaxResponse;
+use Drupal\Core\Ajax\CloseModalDialogCommand;
+use Drupal\Core\Ajax\RedirectCommand;
+use Drupal\Core\Form\FormBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\user\SharedTempStoreFactory;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+abstract class ResolverRelationshipConfigure extends FormBase {
+
+ /**
+ * @var \Drupal\user\SharedTempStoreFactory
+ */
+ protected $tempstore;
+
+ /**
+ * @var string
+ */
+ protected $tempstore_id;
+
+ /**
+ * @var string;
+ */
+ protected $machine_name;
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container) {
+ return new static($container->get('user.shared_tempstore'));
+ }
+
+ function __construct(SharedTempStoreFactory $tempstore) {
+ $this->tempstore = $tempstore;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getFormId() {
+ return 'ctools_context_configure';
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildForm(array $form, FormStateInterface $form_state, $context = NULL, $tempstore_id = NULL, $machine_name = NULL) {
+ $this->tempstore_id = $tempstore_id;
+ $this->machine_name = $machine_name;
+ $cached_values = $this->tempstore->get($this->tempstore_id)->get($this->machine_name);
+ if (is_numeric($context)) {
+ $id = $context;
+ $contexts = $this->getContexts($cached_values);
+ $context = $contexts[$id]['context'];
+ $label = $contexts[$id]['label'];
+ $machine_name = $contexts[$id]['machine_name'];
+ $description = $contexts[$id]['description'];
+ // Conditionally set this form element so that we can update or add.
+ $form['id'] = [
+ '#type' => 'value',
+ '#value' => $id
+ ];
+ }
+ else {
+ $label = '';
+ $machine_name = '';
+ $description = '';
+ }
+ $form['#attached']['library'][] = 'core/drupal.dialog.ajax';
+ $form['context'] = [
+ '#type' => 'value',
+ '#value' => $context
+ ];
+ $form['label'] = [
+ '#type' => 'textfield',
+ '#title' => $this->t('Label'),
+ '#default_value' => $label,
+ '#required' => TRUE,
+ ];
+ $form['machine_name'] = [
+ '#type' => 'textfield',
+ '#title' => $this->t('Machine Name'),
+ '#default_value' => $machine_name,
+ '#required' => TRUE,
+ ];
+ $form['description'] = [
+ '#type' => 'textarea',
+ '#title' => $this->t('Description'),
+ '#default_value' => $description,
+ ];
+ $form['submit'] = [
+ '#type' => 'submit',
+ '#value' => $this->t('Save'),
+ '#ajax' => [
+ 'callback' => [$this, 'ajaxSave'],
+ ]
+ ];
+ return $form;
+ }
+
+ public function validateForm(array &$form, FormStateInterface $form_state) {
+ $machine_name = $form_state->getValue('machine_name');
+ $cached_values = $this->tempstore->get($this->tempstore_id)->get($this->machine_name);
+ foreach ($this->getContexts($cached_values) as $id => $context) {
+ if ($context['machine_name'] == $machine_name) {
+ $form_state->setError($form['machine_name'], $this->t('That machine name is in use by another context definition.'));
+ }
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function submitForm(array &$form, FormStateInterface $form_state) {
+ $cached_values = $this->tempstore->get($this->tempstore_id)->get($this->machine_name);
+ $contexts = $this->getContexts($cached_values);
+ $context = [
+ 'context' => $form_state->getValue('context'),
+ 'label' => $form_state->getValue('label'),
+ 'machine_name' => $form_state->getValue('machine_name'),
+ 'description' => $form_state->getValue('description'),
+ ];
+ if ($form_state->hasValue('id')) {
+ $contexts[$form_state->getValue('id')] = $context;
+ }
+ else {
+ $contexts[] = $context;
+ }
+ $cached_values = $this->setContexts($cached_values, $contexts);
+ $this->tempstore->get($this->tempstore_id)->set($this->machine_name, $cached_values);
+ list($route_name, $route_parameters) = $this->getParentRouteInfo($cached_values);
+ $form_state->setRedirect($route_name, $route_parameters);
+ }
+
+ public function ajaxSave(array &$form, FormStateInterface $form_state) {
+ $response = new AjaxResponse();
+ $cached_values = $this->tempstore->get($this->tempstore_id)->get($this->machine_name);
+ list($route_name, $route_parameters) = $this->getParentRouteInfo($cached_values);
+ $response->addCommand(new RedirectCommand($this->url($route_name, $route_parameters)));
+ $response->addCommand(new CloseModalDialogCommand());
+ return $response;
+ }
+
+ /**
+ * Document the route name and parameters for redirect after submission.
+ *
+ * @param $cached_values
+ *
+ * @return array
+ * In the format of
+ * return ['route.name', ['machine_name' => $this->machine_name, 'step' => 'step_name]];
+ */
+ abstract protected function getParentRouteInfo($cached_values);
+
+ /**
+ * Custom logic for retrieving the contexts array from cached_values.
+ *
+ * @param $cached_values
+ *
+ * @return array
+ */
+ abstract protected function getContexts($cached_values);
+
+ /**
+ * Custom logic for setting the contexts array in cached_values.
+ *
+ * @param $cached_values
+ *
+ * @param $contexts
+ * The contexts to set within the cached values.
+ *
+ * @return mixed
+ * Return the $cached_values
+ */
+ abstract protected function setContexts($cached_values, $contexts);
+
+}