Version 1
[yaffs-website] / web / core / modules / views_ui / src / Form / Ajax / Rearrange.php
diff --git a/web/core/modules/views_ui/src/Form/Ajax/Rearrange.php b/web/core/modules/views_ui/src/Form/Ajax/Rearrange.php
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+<?php
+
+namespace Drupal\views_ui\Form\Ajax;
+
+use Drupal\Component\Utility\SafeMarkup;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Url;
+use Drupal\views\ViewEntityInterface;
+use Drupal\views\ViewExecutable;
+
+/**
+ * Provides a rearrange form for Views handlers.
+ */
+class Rearrange extends ViewsFormBase {
+
+  /**
+   * Constructs a new Rearrange object.
+   */
+  public function __construct($type = NULL) {
+    $this->setType($type);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormKey() {
+    return 'rearrange';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getForm(ViewEntityInterface $view, $display_id, $js, $type = NULL) {
+    $this->setType($type);
+    return parent::getForm($view, $display_id, $js);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId() {
+    return 'views_ui_rearrange_form';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state) {
+    $view = $form_state->get('view');
+    $display_id = $form_state->get('display_id');
+    $type = $form_state->get('type');
+
+    $types = ViewExecutable::getHandlerTypes();
+    $executable = $view->getExecutable();
+    if (!$executable->setDisplay($display_id)) {
+      $form['markup'] = ['#markup' => $this->t('Invalid display id @display', ['@display' => $display_id])];
+      return $form;
+    }
+    $display = &$executable->displayHandlers->get($display_id);
+    $form['#title'] = $this->t('Rearrange @type', ['@type' => $types[$type]['ltitle']]);
+    $form['#section'] = $display_id . 'rearrange-item';
+
+    if ($display->defaultableSections($types[$type]['plural'])) {
+      $section = $types[$type]['plural'];
+      $form_state->set('section', $section);
+      views_ui_standard_display_dropdown($form, $form_state, $section);
+    }
+
+    $count = 0;
+
+    // Get relationship labels
+    $relationships = [];
+    foreach ($display->getHandlers('relationship') as $id => $handler) {
+      $relationships[$id] = $handler->adminLabel();
+    }
+
+    $form['fields'] = [
+      '#type' => 'table',
+      '#header' => ['', $this->t('Weight'), $this->t('Remove')],
+      '#empty' => $this->t('No fields available.'),
+      '#tabledrag' => [
+        [
+          'action' => 'order',
+          'relationship' => 'sibling',
+          'group' => 'weight',
+        ]
+      ],
+      '#tree' => TRUE,
+      '#prefix' => '<div class="scroll" data-drupal-views-scroll>',
+      '#suffix' => '</div>',
+    ];
+
+    foreach ($display->getOption($types[$type]['plural']) as $id => $field) {
+      $form['fields'][$id] = [];
+
+      $form['fields'][$id]['#attributes'] = ['class' => ['draggable'], 'id' => 'views-row-' . $id];
+
+      $handler = $display->getHandler($type, $id);
+      if ($handler) {
+        $name = $handler->adminLabel() . ' ' . $handler->adminSummary();
+        if (!empty($field['relationship']) && !empty($relationships[$field['relationship']])) {
+          $name = '(' . $relationships[$field['relationship']] . ') ' . $name;
+        }
+        $markup = $name;
+      }
+      else {
+        $name = $id;
+        $markup = $this->t('Broken field @id', ['@id' => $id]);
+      }
+      $form['fields'][$id]['name'] = ['#markup' => $markup];
+
+      $form['fields'][$id]['weight'] = [
+        '#type' => 'textfield',
+        '#default_value' => ++$count,
+        '#attributes' => ['class' => ['weight']],
+        '#title' => t('Weight for @title', ['@title' => $name]),
+        '#title_display' => 'invisible',
+      ];
+
+      $form['fields'][$id]['removed'] = [
+        '#type' => 'checkbox',
+        '#title' => t('Remove @title', ['@title' => $name]),
+        '#title_display' => 'invisible',
+        '#id' => 'views-removed-' . $id,
+        '#attributes' => ['class' => ['views-remove-checkbox']],
+        '#default_value' => 0,
+        '#suffix' => \Drupal::l(SafeMarkup::format('<span>@text</span>', ['@text' => $this->t('Remove')]),
+          Url::fromRoute('<none>', [], ['attributes' => [
+            'id' => 'views-remove-link-' . $id,
+            'class' => ['views-hidden', 'views-button-remove', 'views-remove-link'],
+            'alt' => $this->t('Remove this item'),
+            'title' => $this->t('Remove this item')],
+          ])
+        ),
+      ];
+    }
+
+    $view->getStandardButtons($form, $form_state, 'views_ui_rearrange_form');
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    $view = $form_state->get('view');
+    $display_id = $form_state->get('display_id');
+    $type = $form_state->get('type');
+
+    $types = ViewExecutable::getHandlerTypes();
+    $display = &$view->getExecutable()->displayHandlers->get($display_id);
+
+    $old_fields = $display->getOption($types[$type]['plural']);
+    $new_fields = $order = [];
+
+    // Make an array with the weights
+    foreach ($form_state->getValue('fields') as $field => $info) {
+      // add each value that is a field with a weight to our list, but only if
+      // it has had its 'removed' checkbox checked.
+      if (is_array($info) && isset($info['weight']) && empty($info['removed'])) {
+        $order[$field] = $info['weight'];
+      }
+    }
+
+    // Sort the array
+    asort($order);
+
+    // Create a new list of fields in the new order.
+    foreach (array_keys($order) as $field) {
+      $new_fields[$field] = $old_fields[$field];
+    }
+    $display->setOption($types[$type]['plural'], $new_fields);
+
+    // Store in cache
+    $view->cacheSet();
+  }
+
+}