!!!FEATURE: Reform foundation and boot process of the UI

Classes/Controller/BackendController.php

@@ -12,18 +12,13 @@
  * source code.
  */
 
-use Neos\ContentRepository\Core\NodeType\NodeTypeName;
 use Neos\ContentRepository\Core\Projection\ContentGraph\VisibilityConstraints;
 use Neos\ContentRepositoryRegistry\ContentRepositoryRegistry;
 use Neos\Flow\Annotations as Flow;
 use Neos\Flow\Mvc\Controller\ActionController;
-use Neos\Flow\Mvc\View\ViewInterface;
 use Neos\Flow\Persistence\PersistenceManagerInterface;
-use Neos\Flow\ResourceManagement\ResourceManager;
 use Neos\Flow\Security\Context;
 use Neos\Flow\Session\SessionInterface;
-use Neos\Fusion\View\FusionView;
-use Neos\Neos\Controller\Backend\MenuHelper;
 use Neos\Neos\Domain\Repository\DomainRepository;
 use Neos\Neos\Domain\Repository\SiteRepository;
 use Neos\Neos\Domain\Service\NodeTypeNameFactory;
@@ -32,13 +27,18 @@
 use Neos\Neos\FrontendRouting\SiteDetection\SiteDetectionResult;
 use Neos\Neos\Service\BackendRedirectionService;
 use Neos\Neos\Service\UserService;
-use Neos\Neos\Ui\Domain\Service\StyleAndJavascriptInclusionService;
-use Neos\Neos\Ui\Service\NodeClipboard;
+use Neos\Neos\Ui\Domain\InitialData\ConfigurationProviderInterface;
+use Neos\Neos\Ui\Domain\InitialData\FrontendConfigurationProviderInterface;
+use Neos\Neos\Ui\Domain\InitialData\InitialStateProviderInterface;
+use Neos\Neos\Ui\Domain\InitialData\MenuProviderInterface;
+use Neos\Neos\Ui\Domain\InitialData\NodeTypeGroupsAndRolesProviderInterface;
+use Neos\Neos\Ui\Domain\InitialData\RoutesProviderInterface;
+use Neos\Neos\Ui\Presentation\ApplicationView;
 
 class BackendController extends ActionController
 {
     /**
-     * @var FusionView
+     * @var ApplicationView
      */
     protected $view;
 
@@ -72,18 +72,6 @@ class BackendController extends ActionController
      */
     protected $session;
 
-    /**
-     * @Flow\Inject
-     * @var ResourceManager
-     */
-    protected $resourceManager;
-
-    /**
-     * @Flow\Inject
-     * @var MenuHelper
-     */
-    protected $menuHelper;
-
     /**
      * @Flow\Inject(lazy=false)
      * @var BackendRedirectionService
@@ -104,27 +92,39 @@ class BackendController extends ActionController
 
     /**
      * @Flow\Inject
-     * @var StyleAndJavascriptInclusionService
+     * @var ConfigurationProviderInterface
      */
-    protected $styleAndJavascriptInclusionService;
+    protected $configurationProvider;
 
     /**
      * @Flow\Inject
-     * @var NodeClipboard
+     * @var RoutesProviderInterface
      */
-    protected $clipboard;
+    protected $routesProvider;
 
     /**
-     * @Flow\InjectConfiguration(package="Neos.Neos.Ui", path="splashScreen.partial")
-     * @var string
+     * @Flow\Inject
+     * @var FrontendConfigurationProviderInterface
      */
-    protected $splashScreenPartial;
+    protected $frontendConfigurationProvider;
 
-    public function initializeView(ViewInterface $view)
-    {
-        /** @var FusionView $view */
-        $view->setFusionPath('backend');
-    }
+    /**
+     * @Flow\Inject
+     * @var NodeTypeGroupsAndRolesProviderInterface
+     */
+    protected $nodeTypeGroupsAndRolesProvider;
+
+    /**
+     * @Flow\Inject
+     * @var MenuProviderInterface
+     */
+    protected $menuProvider;
+
+    /**
+     * @Flow\Inject
+     * @var InitialStateProviderInterface
+     */
+    protected $initialStateProvider;
 
     /**
      * Displays the backend interface
@@ -187,23 +187,35 @@ public function indexAction(string $node = null)
             $node = $subgraph->findNodeById($nodeAddress->nodeAggregateId);
         }
 
-        $this->view->assign('user', $user);
-        $this->view->assign('documentNode', $node);
-        $this->view->assign('site', $siteNode);
-        $this->view->assign('clipboardNodes', $this->clipboard->getSerializedNodeAddresses());
-        $this->view->assign('clipboardMode', $this->clipboard->getMode());
-        $this->view->assign('headScripts', $this->styleAndJavascriptInclusionService->getHeadScripts());
-        $this->view->assign('headStylesheets', $this->styleAndJavascriptInclusionService->getHeadStylesheets());
-        $this->view->assign('splashScreenPartial', $this->splashScreenPartial);
-        $this->view->assign('sitesForMenu', $this->menuHelper->buildSiteList($this->getControllerContext()));
-        $this->view->assign('modulesForMenu', $this->menuHelper->buildModuleList($this->getControllerContext()));
-        $this->view->assign('contentRepositoryId', $siteDetectionResult->contentRepositoryId);
-
-        $this->view->assignMultiple([
-            'subgraph' => $subgraph
+        $this->view->assign('initialData', [
+            'configuration' =>
+                $this->configurationProvider->getConfiguration(
+                    contentRepository: $contentRepository,
+                    uriBuilder: $this->controllerContext->getUriBuilder(),
+                ),
+            'routes' =>
+                $this->routesProvider->getRoutes(
+                    uriBuilder: $this->controllerContext->getUriBuilder()
+                ),
+            'frontendConfiguration' =>
+                $this->frontendConfigurationProvider->getFrontendConfiguration(
+                    controllerContext: $this->controllerContext,
+                ),
+            'nodeTypes' =>
+                $this->nodeTypeGroupsAndRolesProvider->getNodeTypes(),
+            'menu' =>
+                $this->menuProvider->getMenu(
+                    controllerContext: $this->controllerContext,
+                ),
+            'initialState' =>
+                $this->initialStateProvider->getInitialState(
+                    controllerContext: $this->controllerContext,
+                    contentRepositoryId: $siteDetectionResult->contentRepositoryId,
+                    documentNode: $node,
+                    site: $siteNode,
+                    user: $user,
+                ),
         ]);
-
-        $this->view->assign('interfaceLanguage', $this->userService->getInterfaceLanguage());
     }
 
     /**

Classes/Domain/InitialData/CacheConfigurationVersionProviderInterface.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Neos.Neos.Ui package.
+ *
+ * (c) Contributors of the Neos Project - www.neos.io
+ *
+ * This package is Open Source Software. For the full copyright and license
+ * information, please view the LICENSE file which was distributed with this
+ * source code.
+ */
+
+declare(strict_types=1);
+
+namespace Neos\Neos\Ui\Domain\InitialData;
+
+/**
+ * Retrieves the current version identifier for the configuration cache so it
+ * can be used as a cache busting parameter for resources fetched on client
+ * side.
+ *
+ * @internal
+ */
+interface CacheConfigurationVersionProviderInterface
+{
+    public function getCacheConfigurationVersion(): string;
+}

Classes/Domain/InitialData/ConfigurationProviderInterface.php

@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of the Neos.Neos.Ui package.
+ *
+ * (c) Contributors of the Neos Project - www.neos.io
+ *
+ * This package is Open Source Software. For the full copyright and license
+ * information, please view the LICENSE file which was distributed with this
+ * source code.
+ */
+
+declare(strict_types=1);
+
+namespace Neos\Neos\Ui\Domain\InitialData;
+
+use Neos\ContentRepository\Core\ContentRepository;
+use Neos\Flow\Mvc\Routing\UriBuilder;
+
+/**
+ * Retrieves the `nodeTree` and `structureTree` segments from
+ * `Neos.Neos.userInterface.navigateComponent` settings,
+ * `allowedTargetWorkspaces` from the ContentRepository's `WorkspaceService`
+ * as well as the `nodeTypeSchema` and `translations` endpoints.
+ *
+ * @internal
+ */
+interface ConfigurationProviderInterface
+{
+    /**
+     * @return array{nodeTree:mixed,structureTree:mixed,allowedTargetWorkspaces:mixed,endpoints:array{nodeTypeSchema:string,translations:string}}
+     */
+    public function getConfiguration(
+        ContentRepository $contentRepository,
+        UriBuilder $uriBuilder,
+    ): array;
+}

Classes/Domain/InitialData/FrontendConfigurationProviderInterface.php

@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Neos.Neos.Ui package.
+ *
+ * (c) Contributors of the Neos Project - www.neos.io
+ *
+ * This package is Open Source Software. For the full copyright and license
+ * information, please view the LICENSE file which was distributed with this
+ * source code.
+ */
+
+declare(strict_types=1);
+
+namespace Neos\Neos\Ui\Domain\InitialData;
+
+use Neos\Flow\Mvc\Controller\ControllerContext;
+
+/**
+ * Reads and preprocesses the `Neos.Neos.Ui.frontendConfiguration` settings
+ * that are mostly used by third-party plugins to share data between server
+ * and client.
+ *
+ * @internal
+ */
+interface FrontendConfigurationProviderInterface
+{
+    /** @return array<mixed> */
+    public function getFrontendConfiguration(
+        ControllerContext $controllerContext
+    ): array;
+}

Classes/Domain/InitialData/InitialStateProviderInterface.php

@@ -0,0 +1,38 @@
+<?php
+
+/*
+ * This file is part of the Neos.Neos.Ui package.
+ *
+ * (c) Contributors of the Neos Project - www.neos.io
+ *
+ * This package is Open Source Software. For the full copyright and license
+ * information, please view the LICENSE file which was distributed with this
+ * source code.
+ */
+
+declare(strict_types=1);
+
+namespace Neos\Neos\Ui\Domain\InitialData;
+
+use Neos\ContentRepository\Core\Factory\ContentRepositoryId;
+use Neos\ContentRepository\Core\Projection\ContentGraph\Node;
+use Neos\Flow\Mvc\Controller\ControllerContext;
+use Neos\Neos\Domain\Model\User;
+
+/**
+ * Reads and preprocesses the `Neos.Neos.Ui.initialState` settings that are
+ * used to hydrate the UI's redux store.
+ *
+ * @internal
+ */
+interface InitialStateProviderInterface
+{
+    /** @return array<mixed> */
+    public function getInitialState(
+        ControllerContext $controllerContext,
+        ContentRepositoryId $contentRepositoryId,
+        ?Node $documentNode,
+        ?Node $site,
+        User $user,
+    ): array;
+}

Classes/Domain/InitialData/MenuProviderInterface.php

@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the Neos.Neos.Ui package.
+ *
+ * (c) Contributors of the Neos Project - www.neos.io
+ *
+ * This package is Open Source Software. For the full copyright and license
+ * information, please view the LICENSE file which was distributed with this
+ * source code.
+ */
+
+declare(strict_types=1);
+
+namespace Neos\Neos\Ui\Domain\InitialData;
+
+use Neos\Flow\Mvc\Controller\ControllerContext;
+
+/**
+ * Retrieves all data needed to render the main burger menu located in the
+ * top left corner of the UI.
+ *
+ * @internal
+ */
+interface MenuProviderInterface
+{
+    /**
+     * @return array<int,array{label:string,icon:string,uri:string,target:string,children:array<int,array{icon:string,label:string,uri:string,position?:string,isActive:bool,target:string,skipI18n:bool}>}>
+     */
+    public function getMenu(ControllerContext $controllerContext): array;
+}

Classes/Domain/InitialData/NodeTypeGroupsAndRolesProviderInterface.php

@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Neos.Neos.Ui package.
+ *
+ * (c) Contributors of the Neos Project - www.neos.io
+ *
+ * This package is Open Source Software. For the full copyright and license
+ * information, please view the LICENSE file which was distributed with this
+ * source code.
+ */
+
+declare(strict_types=1);
+
+namespace Neos\Neos\Ui\Domain\InitialData;
+
+/**
+ * Retrieves information about node type roles and node type groups.
+ *
+ * Roles are a dedicated UI-concept that is meant to distinguish between
+ * document, content and collection nodes.
+ * Groups refer the grouping of node types in the creation dialog.
+ *
+ * @internal
+ */
+interface NodeTypeGroupsAndRolesProviderInterface
+{
+    /**
+     * @return array{roles:mixed,groups:mixed}
+     */
+    public function getNodeTypes(): array;
+}

Classes/Domain/InitialData/RoutesProviderInterface.php

@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Neos.Neos.Ui package.
+ *
+ * (c) Contributors of the Neos Project - www.neos.io
+ *
+ * This package is Open Source Software. For the full copyright and license
+ * information, please view the LICENSE file which was distributed with this
+ * source code.
+ */
+
+declare(strict_types=1);
+
+namespace Neos\Neos\Ui\Domain\InitialData;
+
+use Neos\Flow\Mvc\Routing\UriBuilder;
+
+/**
+ * Retrieves routes/endpoints required for communication with the
+ * Neos server application.
+ *
+ * Only exceptions are `nodeTypeSchema` and `translations`,
+ * which are handled by {@see ConfigurationProviderInterface}.
+ *
+ * @internal
+ */
+interface RoutesProviderInterface
+{
+    /** @return array<mixed> */
+    public function getRoutes(UriBuilder $uriBuilder): array;
+}