--- /dev/null
+<?php
+
+namespace Drupal\views_ui;
+
+use Drupal\Core\Entity\EntityForm;
+use Drupal\Core\Form\FormStateInterface;
+use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
+use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
+
+/**
+ * Base form for Views forms.
+ */
+abstract class ViewFormBase extends EntityForm {
+
+ /**
+ * The name of the display used by the form.
+ *
+ * @var string
+ */
+ protected $displayID;
+
+ /**
+ * {@inheritdoc}
+ */
+ public function init(FormStateInterface $form_state) {
+ parent::init($form_state);
+
+ // @todo Remove the need for this.
+ $form_state->loadInclude('views_ui', 'inc', 'admin');
+ $form_state->set('view', $this->entity);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildForm(array $form, FormStateInterface $form_state, $display_id = NULL) {
+ if (isset($display_id) && $form_state->has('display_id') && ($display_id !== $form_state->get('display_id'))) {
+ throw new \InvalidArgumentException('Mismatch between $form_state->get(\'display_id\') and $display_id.');
+ }
+ $this->displayID = $form_state->has('display_id') ? $form_state->get('display_id') : $display_id;
+ return parent::buildForm($form, $form_state);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function prepareEntity() {
+ // Determine the displays available for editing.
+ if ($tabs = $this->getDisplayTabs($this->entity)) {
+ if (empty($this->displayID)) {
+ // If a display isn't specified, use the first one after sorting by
+ // #weight.
+ uasort($tabs, 'Drupal\Component\Utility\SortArray::sortByWeightProperty');
+ foreach ($tabs as $id => $tab) {
+ if (!isset($tab['#access']) || $tab['#access']) {
+ $this->displayID = $id;
+ break;
+ }
+ }
+ }
+ // If a display is specified, but we don't have access to it, return
+ // an access denied page.
+ if ($this->displayID && !isset($tabs[$this->displayID])) {
+ throw new NotFoundHttpException();
+ }
+ elseif ($this->displayID && (isset($tabs[$this->displayID]['#access']) && !$tabs[$this->displayID]['#access'])) {
+ throw new AccessDeniedHttpException();
+ }
+
+ }
+ elseif ($this->displayID) {
+ throw new NotFoundHttpException();
+ }
+ }
+
+ /**
+ * Adds tabs for navigating across Displays when editing a View.
+ *
+ * This function can be called from hook_menu_local_tasks_alter() to implement
+ * these tabs as secondary local tasks, or it can be called from elsewhere if
+ * having them as secondary local tasks isn't desired. The caller is responsible
+ * for setting the active tab's #active property to TRUE.
+ *
+ * @param $display_id
+ * The display_id which is edited on the current request.
+ */
+ public function getDisplayTabs(ViewUI $view) {
+ $executable = $view->getExecutable();
+ $executable->initDisplay();
+ $display_id = $this->displayID;
+ $tabs = [];
+
+ // Create a tab for each display.
+ foreach ($view->get('display') as $id => $display) {
+ // Get an instance of the display plugin, to make sure it will work in the
+ // UI.
+ $display_plugin = $executable->displayHandlers->get($id);
+ if (empty($display_plugin)) {
+ continue;
+ }
+
+ $tabs[$id] = [
+ '#theme' => 'menu_local_task',
+ '#weight' => $display['position'],
+ '#link' => [
+ 'title' => $this->getDisplayLabel($view, $id),
+ 'localized_options' => [],
+ 'url' => $view->urlInfo('edit-display-form')->setRouteParameter('display_id', $id),
+ ],
+ ];
+ if (!empty($display['deleted'])) {
+ $tabs[$id]['#link']['localized_options']['attributes']['class'][] = 'views-display-deleted-link';
+ }
+ if (isset($display['display_options']['enabled']) && !$display['display_options']['enabled']) {
+ $tabs[$id]['#link']['localized_options']['attributes']['class'][] = 'views-display-disabled-link';
+ }
+ }
+
+ // If the default display isn't supposed to be shown, don't display its tab, unless it's the only display.
+ if ((!$this->isDefaultDisplayShown($view) && $display_id != 'default') && count($tabs) > 1) {
+ $tabs['default']['#access'] = FALSE;
+ }
+
+ // Mark the display tab as red to show validation errors.
+ $errors = $executable->validate();
+ foreach ($view->get('display') as $id => $display) {
+ if (!empty($errors[$id])) {
+ // Always show the tab.
+ $tabs[$id]['#access'] = TRUE;
+ // Add a class to mark the error and a title to make a hover tip.
+ $tabs[$id]['#link']['localized_options']['attributes']['class'][] = 'error';
+ $tabs[$id]['#link']['localized_options']['attributes']['title'] = $this->t('This display has one or more validation errors.');
+ }
+ }
+
+ return $tabs;
+ }
+
+ /**
+ * Controls whether or not the default display should have its own tab on edit.
+ */
+ public function isDefaultDisplayShown(ViewUI $view) {
+ // Always show the default display for advanced users who prefer that mode.
+ $advanced_mode = \Drupal::config('views.settings')->get('ui.show.master_display');
+ // For other users, show the default display only if there are no others, and
+ // hide it if there's at least one "real" display.
+ $additional_displays = (count($view->getExecutable()->displayHandlers) == 1);
+
+ return $advanced_mode || $additional_displays;
+ }
+
+ /**
+ * Placeholder function for overriding $display['display_title'].
+ *
+ * @todo Remove this function once editing the display title is possible.
+ */
+ public function getDisplayLabel(ViewUI $view, $display_id, $check_changed = TRUE) {
+ $display = $view->get('display');
+ $title = $display_id == 'default' ? $this->t('Master') : $display[$display_id]['display_title'];
+ $title = views_ui_truncate($title, 25);
+
+ if ($check_changed && !empty($view->changed_display[$display_id])) {
+ $changed = '*';
+ $title = $title . $changed;
+ }
+
+ return $title;
+ }
+
+}
projects / yaffs-website / blobdiff