Issue #2032309 by dawehner, amateescu: Use local tasks derivatives to provide...

Issue #2032309 by dawehner, amateescu: Use local tasks derivatives to provide local tasks for views.

core/lib/Drupal/Core/Menu/LocalTaskDerivativeBase.php

+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Core\Menu\LocalTaskDerivativeBase.
+ */
+
+namespace Drupal\Core\Menu;
+
+use Drupal\Component\Plugin\Derivative\DerivativeBase;
+
+/**
+ * Provides a getPluginIdFromRoute method for local task derivatives.
+ */
+class LocalTaskDerivativeBase extends DerivativeBase {
+
+  /**
+   * Finds the local task ID of a route given the route name.
+   *
+   * @param string $route_name
+   *   The route name.
+   * @param array $local_tasks
+   *   An array of all local task definitions.
+   *
+   * @return string|null
+   *   Returns the local task ID of the given route or NULL if none is found.
+   */
+  protected function getPluginIdFromRoute($route_name, &$local_tasks) {
+    foreach ($local_tasks as $plugin_id => $local_task) {
+      if ($local_task['route_name'] == $route_name) {
+        return $plugin_id;
+        break;
+      }
+    }
+  }
+
+}

core/modules/comment/comment.local_tasks.yml

@@ -13,3 +13,21 @@ comment.confirm_delete_tab:
   tab_root_id: comment.permalink_tab
   weight: 10
 
+comment.admin:
+  title: Comments
+  route_name: comment.admin
+  tab_root_id: node.content_overview
+
+comment.admin_new:
+  title: 'Published comments'
+  route_name: comment.admin
+  tab_root_id: node.content_overview
+  tab_parent_id: comment.admin
+
+comment.admin_approval:
+  title: 'Unapproved comments'
+  route_name: comment.admin_approval
+  class: Drupal\comment\Plugin\Menu\LocalTask\UnapprovedComments
+  tab_root_id: node.content_overview
+  tab_parent_id: comment.admin
+  weight: 1

core/modules/comment/comment.module

@@ -210,18 +210,6 @@ function comment_menu() {
     'title' => 'Comments',
     'description' => 'List and edit site comments and the comment approval queue.',
     'route_name' => 'comment.admin',
-    'type' => MENU_LOCAL_TASK | MENU_NORMAL_ITEM,
-  );
-  // Tabs begin here.
-  $items['admin/content/comment/new'] = array(
-    'title' => 'Published comments',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
-  $items['admin/content/comment/approval'] = array(
-    'title' => 'Unapproved comments',
-    'title callback' => 'comment_count_unpublished',
-    'route_name' => 'comment.admin_approval',
-    'type' => MENU_LOCAL_TASK,
   );
 
   return $items;
@@ -239,6 +227,8 @@ function comment_menu_alter(&$items) {
 
 /**
  * Returns a menu title which includes the number of unapproved comments.
+ *
+ * @todo Move to the comment manager and replace by a entity query?
  */
 function comment_count_unpublished() {
   $count = db_query('SELECT COUNT(cid) FROM {comment} WHERE status = :status', array(

core/modules/comment/lib/Drupal/comment/Plugin/Menu/LocalTask/UnapprovedComments.php

+<?php
+
+/**
+ * @file
+ * Contains \Drupal\comment\Plugin\Menu\LocalTask\UnapprovedComments.
+ */
+
+namespace Drupal\comment\Plugin\Menu\LocalTask;
+
+use Drupal\Core\Menu\LocalTaskDefault;
+
+/**
+ * Provides a local task that shows the amount of unapproved comments.
+ */
+class UnapprovedComments extends LocalTaskDefault {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getTitle() {
+    return comment_count_unpublished();
+  }
+
+}

core/modules/config_translation/lib/Drupal/config_translation/Plugin/Derivative/ConfigTranslationLocalTasks.php

@@ -8,15 +8,14 @@
 namespace Drupal\config_translation\Plugin\Derivative;
 
 use Drupal\config_translation\ConfigMapperManagerInterface;
-use Drupal\Component\Plugin\Derivative\DerivativeBase;
-use Drupal\Component\Utility\Unicode;
+use Drupal\Core\Menu\LocalTaskDerivativeBase;
 use Drupal\Core\Plugin\Discovery\ContainerDerivativeInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Provides dynamic local tasks for config translation.
  */
-class ConfigTranslationLocalTasks extends DerivativeBase implements ContainerDerivativeInterface {
+class ConfigTranslationLocalTasks extends LocalTaskDerivativeBase implements ContainerDerivativeInterface {
 
   /**
    * The mapper plugin discovery service.
@@ -80,7 +79,7 @@ public function alterLocalTasks(array &$local_tasks) {
       /** @var \Drupal\config_translation\ConfigMapperInterface $mapper */
       $route_name = $mapper->getOverviewRouteName();
       $translation_tab = $this->basePluginId . ':' . $route_name;
-      $tab_root_id = $this->getTaskFromRoute($mapper->getBaseRouteName(), $local_tasks);
+      $tab_root_id = $this->getPluginIdFromRoute($mapper->getBaseRouteName(), $local_tasks);
       if (!empty($tab_root_id)) {
         $local_tasks[$translation_tab]['tab_root_id'] = $tab_root_id;
       }
@@ -90,27 +89,5 @@ public function alterLocalTasks(array &$local_tasks) {
     }
   }
 
-  /**
-   * Find the local task ID of the parent route given the route name.
-   *
-   * @param string $route_name
-   *   The route name of the parent local task.
-   * @param array $local_tasks
-   *   An array of all local task definitions.
-   *
-   * @return bool|string
-   *   Returns the local task ID of the parent task, otherwise return FALSE.
-   */
-  protected function getTaskFromRoute($route_name, array &$local_tasks) {
-    $root_local_task = FALSE;
-    foreach ($local_tasks as $plugin_id => $local_task) {
-      if ($local_task['route_name'] == $route_name) {
-        $root_local_task = $plugin_id;
-        break;
-      }
-    }
-
-    return $root_local_task;
-  }
 
 }

core/modules/content_translation/lib/Drupal/content_translation/Plugin/Derivative/ContentTranslationLocalTasks.php

@@ -7,15 +7,15 @@
 
 namespace Drupal\content_translation\Plugin\Derivative;
 
-use Drupal\Component\Plugin\Derivative\DerivativeBase;
 use Drupal\content_translation\ContentTranslationManagerInterface;
+use Drupal\Core\Menu\LocalTaskDerivativeBase;
 use Drupal\Core\Plugin\Discovery\ContainerDerivativeInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Provides dynamic local tasks for content translation.
  */
-class ContentTranslationLocalTasks extends DerivativeBase implements ContainerDerivativeInterface {
+class ContentTranslationLocalTasks extends LocalTaskDerivativeBase implements ContainerDerivativeInterface {
 
   /**
    * The base plugin ID
@@ -84,31 +84,8 @@ public function alterLocalTasks(array &$local_tasks) {
       $translation_route_name = $entity_info['links']['drupal:content-translation-overview'];
       $translation_tab = $this->basePluginId . ':' . $translation_route_name;
 
-      $local_tasks[$translation_tab]['tab_root_id'] = $this->getTaskFromRoute($entity_route_name, $local_tasks);
+      $local_tasks[$translation_tab]['tab_root_id'] = $this->getPluginIdFromRoute($entity_route_name, $local_tasks);
     }
   }
 
-  /**
-   * Find the local task ID of the parent route given the route name.
-   *
-   * @param string $route_name
-   *   The route name of the parent local task.
-   * @param array $local_tasks
-   *   An array of all local task definitions.
-   *
-   * @return bool|string
-   *   Returns the local task ID of the parent task, otherwise return FALSE.
-   */
-  protected function getTaskFromRoute($route_name, &$local_tasks) {
-    $parent_local_task = FALSE;
-    foreach ($local_tasks as $plugin_id => $local_task) {
-      if ($local_task['route_name'] == $route_name) {
-        $parent_local_task = $plugin_id;
-        break;
-      }
-    }
-
-    return $parent_local_task;
-  }
-
 }

core/modules/field_ui/lib/Drupal/field_ui/Plugin/Derivative/FieldUiLocalTask.php

@@ -7,8 +7,8 @@
 
 namespace Drupal\field_ui\Plugin\Derivative;
 
-use Drupal\Component\Plugin\Derivative\DerivativeBase;
 use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\Menu\LocalTaskDerivativeBase;
 use Drupal\Core\Plugin\Discovery\ContainerDerivativeInterface;
 use Drupal\Core\Routing\RouteProviderInterface;
 use Drupal\Core\StringTranslation\TranslationInterface;
@@ -17,7 +17,7 @@
 /**
  * Provides local task definitions for all entity bundles.
  */
-class FieldUiLocalTask extends DerivativeBase implements ContainerDerivativeInterface {
+class FieldUiLocalTask extends LocalTaskDerivativeBase implements ContainerDerivativeInterface {
 
   /**
    * The route provider.
@@ -199,29 +199,6 @@ public function alterLocalTasks(&$local_tasks) {
     }
   }
 
-  /**
-   * Finds the local task ID of a route given the route name.
-   *
-   * @param string $route_name
-   *   The route name.
-   * @param array $local_tasks
-   *   An array of all local task definitions.
-   *
-   * @return string|null
-   *   Returns the local task ID of the given route or NULL if none is found.
-   */
-  protected function getPluginIdFromRoute($route_name, &$local_tasks) {
-    $local_task_id = NULL;
-    foreach ($local_tasks as $plugin_id => $local_task) {
-      if ($local_task['route_name'] == $route_name) {
-        $local_task_id = $plugin_id;
-        break;
-      }
-    }
-
-    return $local_task_id;
-  }
-
   /**
    * Translates a string to the current language or to a given language.
    *

core/modules/node/node.local_tasks.yml

@@ -11,6 +11,10 @@ node.delete_confirm:
   tab_root_id: node.view
   title: Delete
   weight: 10
+node.content_overview:
+  title: Content
+  route_name: node.content_overview
+  tab_root_id: node.content_overview
 node.revision_overview:
   route_name: node.revision_overview
   tab_root_id: node.view

core/modules/node/node.module

@@ -985,10 +985,6 @@ function node_menu() {
     'route_name' => 'node.content_overview',
     'weight' => -10,
   );
-  $items['admin/content/node'] = array(
-    'title' => 'Content',
-    'type' => MENU_DEFAULT_LOCAL_TASK,
-  );
 
   $items['admin/structure/types'] = array(
     'title' => 'Content types',

core/modules/views/lib/Drupal/views/Plugin/Derivative/ViewsLocalTask.php

+<?php
+
+/**
+ * @file
+ * Contains \Drupal\views\Plugin\Derivative\ViewsLocalTask.
+ */
+
+namespace Drupal\views\Plugin\Derivative;
+
+use Drupal\Core\KeyValueStore\KeyValueStoreInterface;
+use Drupal\Core\Menu\LocalTaskDerivativeBase;
+use Drupal\Core\Plugin\Discovery\ContainerDerivativeInterface;
+use Drupal\Core\Routing\RouteProviderInterface;
+use Drupal\views\Views;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides local task definitions for all views configured as local tasks.
+ */
+class ViewsLocalTask extends LocalTaskDerivativeBase implements ContainerDerivativeInterface {
+
+  /**
+   * The route provider.
+   *
+   * @var \Drupal\Core\Routing\RouteProviderInterface
+   */
+  protected $routeProvider;
+
+  /**
+   * The state key value store.
+   *
+   * @var \Drupal\Core\KeyValueStore\KeyValueStoreInterface
+   */
+  protected $state;
+
+  /**
+   * Constructs a \Drupal\views\Plugin\Derivative\ViewsLocalTask instance.
+   *
+   * @param \Drupal\Core\Routing\RouteProviderInterface $route_provider
+   *   The route provider.
+   * @param \Drupal\Core\KeyValueStore\KeyValueStoreInterface $state
+   *   The state key value store.
+   */
+  public function __construct(RouteProviderInterface $route_provider, KeyValueStoreInterface $state) {
+    $this->routeProvider = $route_provider;
+    $this->state = $state;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, $base_plugin_id) {
+    return new static(
+      $container->get('router.route_provider'),
+      $container->get('state')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getDerivativeDefinitions(array $base_plugin_definition) {
+    $this->derivatives = array();
+
+    $view_route_names = $this->state->get('views.view_route_names');
+    foreach ($this->getApplicableMenuViews() as $pair) {
+      /** @var $executable \Drupal\views\ViewExecutable */
+      list($executable, $display_id) = $pair;
+
+      $executable->setDisplay($display_id);
+      $menu = $executable->display_handler->getOption('menu');
+      if (in_array($menu['type'], array('tab', 'default tab'))) {
+        $plugin_id = 'view.' . $executable->storage->id() . '.' . $display_id;
+        $route_name = $view_route_names[$executable->storage->id() . '.' . $display_id];
+
+        // Don't add a local task for views which override existing routes.
+        // @todo Alternative it could just change the existing entry.
+        if ($route_name != $plugin_id) {
+          continue;
+        }
+
+        $this->derivatives[$plugin_id] = array(
+          'route_name' => $route_name,
+          'weight' => $menu['weight'],
+          'title' => $menu['title'],
+        ) + $base_plugin_definition;
+
+        // Default local tasks have themselves as tab root id.
+        if ($menu['type'] == 'default tab') {
+          $this->derivatives[$plugin_id]['tab_root_id'] = 'views_view:' . $plugin_id;
+        }
+      }
+    }
+    return $this->derivatives;
+  }
+
+  /**
+   * Alters tab_root_id and tab_parent_id into the views local tasks.
+   */
+  public function alterLocalTasks(&$local_tasks) {
+    $view_route_names = $this->state->get('views.view_route_names');
+
+    foreach ($this->getApplicableMenuViews() as $pair) {
+      /** @var $executable \Drupal\views\ViewExecutable */
+      list($executable, $display_id) = $pair;
+
+      $executable->setDisplay($display_id);
+      $menu = $executable->display_handler->getOption('menu');
+
+      // We already have set the tab_root_id for default tabs.
+      if (in_array($menu['type'], array('tab'))) {
+        $plugin_id = 'view.' . $executable->storage->id() . '.' . $display_id;
+        $view_route_name = $view_route_names[$executable->storage->id() . '.' . $display_id];
+
+        // Don't add a local task for views which override existing routes.
+        if ($view_route_name != $plugin_id) {
+          unset($local_tasks[$plugin_id]);
+          continue;
+        }
+
+        // Find out the parent route.
+        // @todo Find out how to find both the root and parent tab.
+        $path = $executable->display_handler->getPath();
+        $split = explode('/', $path);
+        array_pop($split);
+        $path = implode('/', $split);
+
+        $pattern = '/' . str_replace('%', '{}', $path);
+        if ($routes = $this->routeProvider->getRoutesByPattern($pattern)) {
+          foreach ($routes->all() as $name => $route) {
+            if ($parent_task = $this->getPluginIdFromRoute($name, $local_tasks)) {
+              $local_tasks['views_view:' . $plugin_id]['tab_root_id'] = $parent_task;
+            }
+            // Skip after the first found route.
+            break;
+          }
+        }
+      }
+    }
+  }
+
+  /**
+   * Return a list of all views and display IDs that have a menu entry.
+   *
+   * @return array
+   *   A list of arrays containing the $view and $display_id.
+   * @code
+   * array(
+   *   array($view, $display_id),
+   *   array($view, $display_id),
+   * );
+   * @endcode
+   */
+  protected function getApplicableMenuViews() {
+    return Views::getApplicableViews('uses_hook_menu');
+  }
+
+}

core/modules/views/lib/Drupal/views/Plugin/views/display/PathPluginBase.php

@@ -314,17 +314,20 @@ public function executeHookMenu($callbacks) {
           $items[$path]['menu_name'] = $menu['name'];
           break;
         case 'tab':
-          $items[$path]['type'] = MENU_LOCAL_TASK;
+          $items[$path]['type'] = MENU_CALLBACK;
           break;
         case 'default tab':
-          $items[$path]['type'] = MENU_DEFAULT_LOCAL_TASK;
+          $items[$path]['type'] = MENU_CALLBACK;
           break;
       }
 
       // Add context for contextual links.
-      if (!empty($menu['context'])) {
-        // @todo Make this work with the new contextual links system.
-        $items[$path]['context'] = TRUE;
+      if (in_array($menu['type'], array('tab', 'default tab'))) {
+        // @todo Remove once contextual links are ported to a new plugin based
+        //   system.
+        if (!empty($menu['context'])) {
+          $items[$path]['context'] = TRUE;
+        }
       }
 
       // If this is a 'default' tab, check to see if we have to create the
@@ -336,6 +339,11 @@ public function executeHookMenu($callbacks) {
         // Remove the last piece.
         $bit = array_pop($bits);
 
+        // Default tabs are handled by the local task plugins.
+        if ($tab_options['type'] == 'tab') {
+          return $items;
+        }
+
         // we can't do this if they tried to make the last path bit variable.
         // @todo: We can validate this.
         if ($bit != '%views_arg' && !empty($bits)) {
@@ -359,9 +367,6 @@ public function executeHookMenu($callbacks) {
             case 'normal':
               $items[$default_path]['type'] = MENU_NORMAL_ITEM;
               break;
-            case 'tab':
-              $items[$default_path]['type'] = MENU_LOCAL_TASK;
-              break;
           }
           if (isset($tab_options['weight'])) {
             $items[$default_path]['weight'] = intval($tab_options['weight']);

core/modules/views/views.local_tasks.yml

+views_view:
+  class: Drupal\Core\Menu\LocalTaskDefault
+  derivative: \Drupal\views\Plugin\Derivative\ViewsLocalTask

core/modules/views/views.module

@@ -12,6 +12,7 @@
 use Drupal\Core\Cache\Cache;
 use Drupal\Core\Database\Query\AlterableInterface;
 use Drupal\Core\Language\Language;
+use Drupal\views\Plugin\Derivative\ViewsLocalTask;
 use Drupal\views\ViewExecutable;
 use Drupal\Component\Plugin\Exception\PluginException;
 use Drupal\views\Entity\View;
@@ -1355,3 +1356,12 @@ function views_element_validate_tags($element, &$form_state) {
     }
   }
 }
+
+/**
+ * Implements hook_local_tasks_alter().
+ */
+function views_local_tasks_alter(&$local_tasks) {
+  $container = \Drupal::getContainer();
+  $local_task = ViewsLocalTask::create($container, 'views_view');
+  $local_task->alterLocalTasks($local_tasks);
+}