diff core/modules/layout_builder/src/Controller/LayoutBuilderController.php @ 14:1fec387a4317

Update Drupal core to 8.5.2 via Composer

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/layout_builder/src/Controller/LayoutBuilderController.php	Mon Apr 23 09:46:53 2018 +0100
@@ -0,0 +1,328 @@
+<?php
+
+namespace Drupal\layout_builder\Controller;
+
+use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
+use Drupal\Core\Messenger\MessengerInterface;
+use Drupal\Core\Plugin\PluginFormInterface;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Drupal\Core\Url;
+use Drupal\layout_builder\Context\LayoutBuilderContextTrait;
+use Drupal\layout_builder\LayoutTempstoreRepositoryInterface;
+use Drupal\layout_builder\OverridesSectionStorageInterface;
+use Drupal\layout_builder\Section;
+use Drupal\layout_builder\SectionStorageInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\HttpFoundation\RedirectResponse;
+
+/**
+ * Defines a controller to provide the Layout Builder admin UI.
+ *
+ * @internal
+ */
+class LayoutBuilderController implements ContainerInjectionInterface {
+
+  use LayoutBuilderContextTrait;
+  use StringTranslationTrait;
+
+  /**
+   * The layout tempstore repository.
+   *
+   * @var \Drupal\layout_builder\LayoutTempstoreRepositoryInterface
+   */
+  protected $layoutTempstoreRepository;
+
+  /**
+   * The messenger service.
+   *
+   * @var \Drupal\Core\Messenger\MessengerInterface
+   */
+  protected $messenger;
+
+  /**
+   * LayoutBuilderController constructor.
+   *
+   * @param \Drupal\layout_builder\LayoutTempstoreRepositoryInterface $layout_tempstore_repository
+   *   The layout tempstore repository.
+   * @param \Drupal\Core\Messenger\MessengerInterface $messenger
+   *   The messenger service.
+   */
+  public function __construct(LayoutTempstoreRepositoryInterface $layout_tempstore_repository, MessengerInterface $messenger) {
+    $this->layoutTempstoreRepository = $layout_tempstore_repository;
+    $this->messenger = $messenger;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static(
+      $container->get('layout_builder.tempstore_repository'),
+      $container->get('messenger')
+    );
+  }
+
+  /**
+   * Provides a title callback.
+   *
+   * @param \Drupal\layout_builder\SectionStorageInterface $section_storage
+   *   The section storage.
+   *
+   * @return string
+   *   The title for the layout page.
+   */
+  public function title(SectionStorageInterface $section_storage) {
+    return $this->t('Edit layout for %label', ['%label' => $section_storage->label()]);
+  }
+
+  /**
+   * Renders the Layout UI.
+   *
+   * @param \Drupal\layout_builder\SectionStorageInterface $section_storage
+   *   The section storage.
+   * @param bool $is_rebuilding
+   *   (optional) Indicates if the layout is rebuilding, defaults to FALSE.
+   *
+   * @return array
+   *   A render array.
+   */
+  public function layout(SectionStorageInterface $section_storage, $is_rebuilding = FALSE) {
+    $this->prepareLayout($section_storage, $is_rebuilding);
+
+    $output = [];
+    $count = 0;
+    for ($i = 0; $i < $section_storage->count(); $i++) {
+      $output[] = $this->buildAddSectionLink($section_storage, $count);
+      $output[] = $this->buildAdministrativeSection($section_storage, $count);
+      $count++;
+    }
+    $output[] = $this->buildAddSectionLink($section_storage, $count);
+    $output['#attached']['library'][] = 'layout_builder/drupal.layout_builder';
+    $output['#type'] = 'container';
+    $output['#attributes']['id'] = 'layout-builder';
+    // Mark this UI as uncacheable.
+    $output['#cache']['max-age'] = 0;
+    return $output;
+  }
+
+  /**
+   * Prepares a layout for use in the UI.
+   *
+   * @param \Drupal\layout_builder\SectionStorageInterface $section_storage
+   *   The section storage.
+   * @param bool $is_rebuilding
+   *   Indicates if the layout is rebuilding.
+   */
+  protected function prepareLayout(SectionStorageInterface $section_storage, $is_rebuilding) {
+    // Only add sections if the layout is new and empty.
+    if (!$is_rebuilding && $section_storage->count() === 0) {
+      $sections = [];
+      // If this is an empty override, copy the sections from the corresponding
+      // default.
+      if ($section_storage instanceof OverridesSectionStorageInterface) {
+        $sections = $section_storage->getDefaultSectionStorage()->getSections();
+      }
+
+      // For an empty layout, begin with a single section of one column.
+      if (!$sections) {
+        $sections[] = new Section('layout_onecol');
+      }
+
+      foreach ($sections as $section) {
+        $section_storage->appendSection($section);
+      }
+      $this->layoutTempstoreRepository->set($section_storage);
+    }
+  }
+
+  /**
+   * Builds a link to add a new section at a given delta.
+   *
+   * @param \Drupal\layout_builder\SectionStorageInterface $section_storage
+   *   The section storage.
+   * @param int $delta
+   *   The delta of the section to splice.
+   *
+   * @return array
+   *   A render array for a link.
+   */
+  protected function buildAddSectionLink(SectionStorageInterface $section_storage, $delta) {
+    $storage_type = $section_storage->getStorageType();
+    $storage_id = $section_storage->getStorageId();
+    return [
+      'link' => [
+        '#type' => 'link',
+        '#title' => $this->t('Add Section'),
+        '#url' => Url::fromRoute('layout_builder.choose_section',
+          [
+            'section_storage_type' => $storage_type,
+            'section_storage' => $storage_id,
+            'delta' => $delta,
+          ],
+          [
+            'attributes' => [
+              'class' => ['use-ajax'],
+              'data-dialog-type' => 'dialog',
+              'data-dialog-renderer' => 'off_canvas',
+            ],
+          ]
+        ),
+      ],
+      '#type' => 'container',
+      '#attributes' => [
+        'class' => ['add-section'],
+      ],
+    ];
+  }
+
+  /**
+   * Builds the render array for the layout section while editing.
+   *
+   * @param \Drupal\layout_builder\SectionStorageInterface $section_storage
+   *   The section storage.
+   * @param int $delta
+   *   The delta of the section.
+   *
+   * @return array
+   *   The render array for a given section.
+   */
+  protected function buildAdministrativeSection(SectionStorageInterface $section_storage, $delta) {
+    $storage_type = $section_storage->getStorageType();
+    $storage_id = $section_storage->getStorageId();
+    $section = $section_storage->getSection($delta);
+
+    $layout = $section->getLayout();
+    $build = $section->toRenderArray($this->getAvailableContexts($section_storage), TRUE);
+    $layout_definition = $layout->getPluginDefinition();
+
+    foreach ($layout_definition->getRegions() as $region => $info) {
+      if (!empty($build[$region])) {
+        foreach ($build[$region] as $uuid => $block) {
+          $build[$region][$uuid]['#attributes']['class'][] = 'draggable';
+          $build[$region][$uuid]['#attributes']['data-layout-block-uuid'] = $uuid;
+          $build[$region][$uuid]['#contextual_links'] = [
+            'layout_builder_block' => [
+              'route_parameters' => [
+                'section_storage_type' => $storage_type,
+                'section_storage' => $storage_id,
+                'delta' => $delta,
+                'region' => $region,
+                'uuid' => $uuid,
+              ],
+            ],
+          ];
+        }
+      }
+
+      $build[$region]['layout_builder_add_block']['link'] = [
+        '#type' => 'link',
+        '#title' => $this->t('Add Block'),
+        '#url' => Url::fromRoute('layout_builder.choose_block',
+          [
+            'section_storage_type' => $storage_type,
+            'section_storage' => $storage_id,
+            'delta' => $delta,
+            'region' => $region,
+          ],
+          [
+            'attributes' => [
+              'class' => ['use-ajax'],
+              'data-dialog-type' => 'dialog',
+              'data-dialog-renderer' => 'off_canvas',
+            ],
+          ]
+        ),
+      ];
+      $build[$region]['layout_builder_add_block']['#type'] = 'container';
+      $build[$region]['layout_builder_add_block']['#attributes'] = ['class' => ['add-block']];
+      $build[$region]['layout_builder_add_block']['#weight'] = 1000;
+      $build[$region]['#attributes']['data-region'] = $region;
+      $build[$region]['#attributes']['class'][] = 'layout-builder--layout__region';
+    }
+
+    $build['#attributes']['data-layout-update-url'] = Url::fromRoute('layout_builder.move_block', [
+      'section_storage_type' => $storage_type,
+      'section_storage' => $storage_id,
+    ])->toString();
+    $build['#attributes']['data-layout-delta'] = $delta;
+    $build['#attributes']['class'][] = 'layout-builder--layout';
+
+    return [
+      '#type' => 'container',
+      '#attributes' => [
+        'class' => ['layout-section'],
+      ],
+      'configure' => [
+        '#type' => 'link',
+        '#title' => $this->t('Configure section'),
+        '#access' => $layout instanceof PluginFormInterface,
+        '#url' => Url::fromRoute('layout_builder.configure_section', [
+          'section_storage_type' => $storage_type,
+          'section_storage' => $storage_id,
+          'delta' => $delta,
+        ]),
+        '#attributes' => [
+          'class' => ['use-ajax', 'configure-section'],
+          'data-dialog-type' => 'dialog',
+          'data-dialog-renderer' => 'off_canvas',
+        ],
+      ],
+      'remove' => [
+        '#type' => 'link',
+        '#title' => $this->t('Remove section'),
+        '#url' => Url::fromRoute('layout_builder.remove_section', [
+          'section_storage_type' => $storage_type,
+          'section_storage' => $storage_id,
+          'delta' => $delta,
+        ]),
+        '#attributes' => [
+          'class' => ['use-ajax', 'remove-section'],
+          'data-dialog-type' => 'dialog',
+          'data-dialog-renderer' => 'off_canvas',
+        ],
+      ],
+      'layout-section' => $build,
+    ];
+  }
+
+  /**
+   * Saves the layout.
+   *
+   * @param \Drupal\layout_builder\SectionStorageInterface $section_storage
+   *   The section storage.
+   *
+   * @return \Symfony\Component\HttpFoundation\RedirectResponse
+   *   A redirect response.
+   */
+  public function saveLayout(SectionStorageInterface $section_storage) {
+    $section_storage->save();
+    $this->layoutTempstoreRepository->delete($section_storage);
+
+    if ($section_storage instanceof OverridesSectionStorageInterface) {
+      $this->messenger->addMessage($this->t('The layout override has been saved.'));
+    }
+    else {
+      $this->messenger->addMessage($this->t('The layout has been saved.'));
+    }
+
+    return new RedirectResponse($section_storage->getRedirectUrl()->setAbsolute()->toString());
+  }
+
+  /**
+   * Cancels the layout.
+   *
+   * @param \Drupal\layout_builder\SectionStorageInterface $section_storage
+   *   The section storage.
+   *
+   * @return \Symfony\Component\HttpFoundation\RedirectResponse
+   *   A redirect response.
+   */
+  public function cancelLayout(SectionStorageInterface $section_storage) {
+    $this->layoutTempstoreRepository->delete($section_storage);
+
+    $this->messenger->addMessage($this->t('The changes to the layout have been discarded.'));
+
+    return new RedirectResponse($section_storage->getRedirectUrl()->setAbsolute()->toString());
+  }
+
+}