Version 1
[yaffs-website] / web / core / modules / workflows / src / Form / WorkflowStateAddForm.php
diff --git a/web/core/modules/workflows/src/Form/WorkflowStateAddForm.php b/web/core/modules/workflows/src/Form/WorkflowStateAddForm.php
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+<?php
+
+namespace Drupal\workflows\Form;
+
+use Drupal\Core\Entity\EntityForm;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Class WorkflowStateAddForm.
+ */
+class WorkflowStateAddForm extends EntityForm {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId() {
+    return 'workflow_state_add_form';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function form(array $form, FormStateInterface $form_state) {
+    $form = parent::form($form, $form_state);
+
+    /* @var \Drupal\workflows\WorkflowInterface $workflow */
+    $workflow = $this->getEntity();
+    $form['label'] = [
+      '#type' => 'textfield',
+      '#title' => $this->t('Label'),
+      '#maxlength' => 255,
+      '#default_value' => '',
+      '#description' => $this->t('Label for the state.'),
+      '#required' => TRUE,
+    ];
+
+    $form['id'] = [
+      '#type' => 'machine_name',
+      '#machine_name' => [
+        'exists' => [$this, 'exists'],
+      ],
+    ];
+
+    // Add additional form fields from the workflow type plugin.
+    $form['type_settings'] = [
+      $workflow->get('type') => $workflow->getTypePlugin()->buildStateConfigurationForm($form_state, $workflow),
+      '#tree' => TRUE,
+    ];
+
+    return $form;
+  }
+
+  /**
+   * Determines if the workflow state already exists.
+   *
+   * @param string $state_id
+   *   The workflow state ID.
+   *
+   * @return bool
+   *   TRUE if the workflow state exists, FALSE otherwise.
+   */
+  public function exists($state_id) {
+    /** @var \Drupal\workflows\WorkflowInterface $original_workflow */
+    $original_workflow = \Drupal::entityTypeManager()->getStorage('workflow')->loadUnchanged($this->getEntity()->id());
+    return $original_workflow->hasState($state_id);
+  }
+
+  /**
+   * Copies top-level form values to entity properties
+   *
+   * This form can only change values for a state, which is part of workflow.
+   *
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   *   The entity the current form should operate upon.
+   * @param array $form
+   *   A nested array of form elements comprising the form.
+   * @param \Drupal\Core\Form\FormStateInterface $form_state
+   *   The current state of the form.
+   */
+  protected function copyFormValuesToEntity(EntityInterface $entity, array $form, FormStateInterface $form_state) {
+    /** @var \Drupal\workflows\WorkflowInterface $entity */
+    $values = $form_state->getValues();
+
+    // This is fired twice so we have to check that the entity does not already
+    // have the state.
+    if (!$entity->hasState($values['id'])) {
+      $entity->addState($values['id'], $values['label']);
+      if (isset($values['type_settings'])) {
+        $configuration = $entity->getTypePlugin()->getConfiguration();
+        $configuration['states'][$values['id']] = $values['type_settings'][$entity->getTypePlugin()->getPluginId()];
+        $entity->set('type_settings', $configuration);
+      }
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function save(array $form, FormStateInterface $form_state) {
+    /** @var \Drupal\workflows\WorkflowInterface $workflow */
+    $workflow = $this->entity;
+    $workflow->save();
+    drupal_set_message($this->t('Created %label state.', [
+      '%label' => $workflow->getState($form_state->getValue('id'))->label(),
+    ]));
+    $form_state->setRedirectUrl($workflow->toUrl('edit-form'));
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function actions(array $form, FormStateInterface $form_state) {
+    $actions['submit'] = [
+      '#type' => 'submit',
+      '#value' => $this->t('Save'),
+      '#submit' => ['::submitForm', '::save'],
+    ];
+    return $actions;
+  }
+
+}