diff core/modules/views_ui/src/ViewPreviewForm.php @ 0:c75dbcec494b

Initial commit from drush-created site

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/views_ui/src/ViewPreviewForm.php	Thu Jul 05 14:24:15 2018 +0000
@@ -0,0 +1,108 @@
+<?php
+
+namespace Drupal\views_ui;
+
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Url;
+
+/**
+ * Form controller for the Views preview form.
+ *
+ * @internal
+ */
+class ViewPreviewForm extends ViewFormBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function form(array $form, FormStateInterface $form_state) {
+    $view = $this->entity;
+
+    $form['#prefix'] = '<div id="views-preview-wrapper" class="views-preview-wrapper views-admin clearfix">';
+    $form['#suffix'] = '</div>';
+    $form['#id'] = 'views-ui-preview-form';
+
+    $form_state->disableCache();
+
+    $form['controls']['#attributes'] = ['class' => ['clearfix']];
+
+    $form['controls']['title'] = [
+      '#prefix' => '<h2 class="view-preview-form__title">',
+      '#markup' => $this->t('Preview'),
+      '#suffix' => '</h2>',
+    ];
+
+    // Add a checkbox controlling whether or not this display auto-previews.
+    $form['controls']['live_preview'] = [
+      '#type' => 'checkbox',
+      '#id' => 'edit-displays-live-preview',
+      '#title' => $this->t('Auto preview'),
+      '#default_value' => \Drupal::config('views.settings')->get('ui.always_live_preview'),
+    ];
+
+    // Add the arguments textfield
+    $form['controls']['view_args'] = [
+      '#type' => 'textfield',
+      '#title' => $this->t('Preview with contextual filters:'),
+      '#description' => $this->t('Separate contextual filter values with a "/". For example, %example.', ['%example' => '40/12/10']),
+      '#id' => 'preview-args',
+    ];
+
+    $args = [];
+    if (!$form_state->isValueEmpty('view_args')) {
+      $args = explode('/', $form_state->getValue('view_args'));
+    }
+
+    $user_input = $form_state->getUserInput();
+    if ($form_state->get('show_preview') || !empty($user_input['js'])) {
+      $form['preview'] = [
+        '#weight' => 110,
+        '#theme_wrappers' => ['container'],
+        '#attributes' => ['id' => 'views-live-preview', 'class' => ['views-live-preview']],
+        'preview' => $view->renderPreview($this->displayID, $args),
+      ];
+    }
+    $uri = $view->urlInfo('preview-form');
+    $uri->setRouteParameter('display_id', $this->displayID);
+    $form['#action'] = $uri->toString();
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function actions(array $form, FormStateInterface $form_state) {
+    $view = $this->entity;
+    return [
+      '#attributes' => [
+        'id' => 'preview-submit-wrapper',
+        'class' => ['preview-submit-wrapper']
+      ],
+      'button' => [
+        '#type' => 'submit',
+        '#value' => $this->t('Update preview'),
+        '#attributes' => ['class' => ['arguments-preview']],
+        '#submit' => ['::submitPreview'],
+        '#id' => 'preview-submit',
+        '#ajax' => [
+          'url' => Url::fromRoute('entity.view.preview_form', ['view' => $view->id(), 'display_id' => $this->displayID]),
+          'wrapper' => 'views-preview-wrapper',
+          'event' => 'click',
+          'progress' => ['type' => 'fullscreen'],
+          'method' => 'replaceWith',
+          'disable-refocus' => TRUE,
+        ],
+      ],
+    ];
+  }
+
+  /**
+   * Form submission handler for the Preview button.
+   */
+  public function submitPreview($form, FormStateInterface $form_state) {
+    $form_state->set('show_preview', TRUE);
+    $form_state->setRebuild();
+  }
+
+}