Version 1

[yaffs-website] / web / modules / contrib / inline_entity_form / src / ElementSubmit.php

diff --git a/web/modules/contrib/inline_entity_form/src/ElementSubmit.php b/web/modules/contrib/inline_entity_form/src/ElementSubmit.php
new file mode 100644 (file)
index 0000000..0abde9b
--- /dev/null
+++ b/web/modules/contrib/inline_entity_form/src/ElementSubmit.php
@@ -0,0 +1,114 @@
+<?php
+
+namespace Drupal\inline_entity_form;
+
+use Drupal\Component\Utility\NestedArray;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Render\Element;
+
+/**
+ * Provides #ief_element_submit, the submit version of #element_validate.
+ *
+ * #ief_element_submit callbacks are invoked by a #submit callback added
+ * to the form's main submit button.
+ */
+class ElementSubmit {
+
+  /**
+   * Attaches the #ief_element_submit functionality to the given form.
+   *
+   * @param array $form
+   *   The form.
+   * @param \Drupal\Core\Form\FormStateInterface $form_state
+   *   The form state.
+   */
+  public static function attach(&$form, FormStateInterface $form_state) {
+    // attach() is called for each IEF form element, but the callbacks only
+    // need to be added once per form build.
+    if (isset($form['#ief_element_submit_attached'])) {
+      return;
+    }
+    $form['#ief_element_submit_attached'] = TRUE;
+
+    // Entity form actions.
+    foreach (['submit', 'publish', 'unpublish'] as $action) {
+      if (!empty($form['actions'][$action])) {
+        self::addCallback($form['actions'][$action], $form);
+      }
+    }
+    // Generic submit button.
+    if (!empty($form['submit'])) {
+      self::addCallback($form['submit'], $form);
+    }
+  }
+
+  /**
+   * Adds the trigger callback to the given submit element.
+   *
+   * @param array $element
+   *   The submit element.
+   * @param array $complete_form
+   *   The complete form.
+   */
+  public static function addCallback(&$element, $complete_form) {
+    if (empty($element['#submit'])) {
+      // Drupal runs either the button-level callbacks or the form-level ones.
+      // Having no button-level callbacks indicates that the form has relied
+      // on form-level callbacks, which now need to be transferred.
+      $element['#submit'] = $complete_form['#submit'];
+    }
+
+    $element['#submit'] = array_merge([[get_called_class(), 'trigger']], $element['#submit']);
+    // Used to distinguish between an inline form submit and main form submit.
+    $element['#ief_submit_trigger']  = TRUE;
+    $element['#ief_submit_trigger_all'] = TRUE;
+  }
+
+  /**
+   * Button #submit callback: Triggers submission of element forms.
+   *
+   * @param array $form
+   *   The form.
+   * @param \Drupal\Core\Form\FormStateInterface $form_state
+   *   The form state.
+   */
+  public static function trigger($form, FormStateInterface $form_state) {
+    $triggered_element = $form_state->getTriggeringElement();
+    if (!empty($triggered_element['#ief_submit_trigger_all'])) {
+      // The parent form was submitted, process all IEFs and their children.
+      static::doSubmit($form, $form_state);
+    }
+    else {
+      // A specific element was submitted, process it and all of its children.
+      $array_parents = $triggered_element['#array_parents'];
+      $array_parents = array_slice($array_parents, 0, -2);
+      $element = NestedArray::getValue($form, $array_parents);
+      static::doSubmit($element, $form_state);
+    }
+  }
+
+  /**
+   * Submits elements by calling their #ief_element_submit callbacks.
+   *
+   * @param array $element
+   *   The element.
+   * @param \Drupal\Core\Form\FormStateInterface $form_state
+   *   The form state.
+   */
+  public static function doSubmit($element, FormStateInterface $form_state) {
+    // Recurse through all children.
+    foreach (Element::children($element) as $key) {
+      if (!empty($element[$key])) {
+        static::doSubmit($element[$key], $form_state);
+      }
+    }
+
+    // If there are callbacks on this level, run them.
+    if (!empty($element['#ief_element_submit'])) {
+      foreach ($element['#ief_element_submit'] as $callback) {
+        call_user_func_array($callback, [&$element, &$form_state]);
+      }
+    }
+  }
+
+}