class LayoutPluginManager

Same name in other branches
  1. 8.9.x core/lib/Drupal/Core/Layout/LayoutPluginManager.php \Drupal\Core\Layout\LayoutPluginManager
  2. 10 core/lib/Drupal/Core/Layout/LayoutPluginManager.php \Drupal\Core\Layout\LayoutPluginManager
  3. 11.x core/lib/Drupal/Core/Layout/LayoutPluginManager.php \Drupal\Core\Layout\LayoutPluginManager

Provides a plugin manager for layouts.

Hierarchy

Expanded class hierarchy of LayoutPluginManager

1 file declares its use of LayoutPluginManager
LayoutPluginManagerTest.php in core/tests/Drupal/Tests/Core/Layout/LayoutPluginManagerTest.php
1 string reference to 'LayoutPluginManager'
layout_discovery.services.yml in core/modules/layout_discovery/layout_discovery.services.yml
core/modules/layout_discovery/layout_discovery.services.yml
1 service uses LayoutPluginManager
plugin.manager.core.layout in core/modules/layout_discovery/layout_discovery.services.yml
Drupal\Core\Layout\LayoutPluginManager

File

core/lib/Drupal/Core/Layout/LayoutPluginManager.php, line 21

Namespace

Drupal\Core\Layout
View source
class LayoutPluginManager extends DefaultPluginManager implements LayoutPluginManagerInterface {
    use FilteredPluginManagerTrait;
    
    /**
     * The theme handler.
     *
     * @var \Drupal\Core\Extension\ThemeHandlerInterface
     */
    protected $themeHandler;
    
    /**
     * LayoutPluginManager constructor.
     *
     * @param \Traversable $namespaces
     *   An object that implements \Traversable which contains the root paths
     *   keyed by the corresponding namespace to look for plugin implementations.
     * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
     *   Cache backend instance to use.
     * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
     *   The module handler to invoke the alter hook with.
     * @param \Drupal\Core\Extension\ThemeHandlerInterface $theme_handler
     *   The theme handler to invoke the alter hook with.
     */
    public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler, ThemeHandlerInterface $theme_handler) {
        parent::__construct('Plugin/Layout', $namespaces, $module_handler, LayoutInterface::class, Layout::class);
        $this->themeHandler = $theme_handler;
        $type = $this->getType();
        $this->setCacheBackend($cache_backend, $type);
        $this->alterInfo($type);
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getType() {
        return 'layout';
    }
    
    /**
     * {@inheritdoc}
     */
    protected function providerExists($provider) {
        return $this->moduleHandler
            ->moduleExists($provider) || $this->themeHandler
            ->themeExists($provider);
    }
    
    /**
     * {@inheritdoc}
     */
    protected function getDiscovery() {
        if (!$this->discovery) {
            $discovery = new AnnotatedClassDiscovery($this->subdir, $this->namespaces, $this->pluginDefinitionAnnotationName, $this->additionalAnnotationNamespaces);
            $discovery = new YamlDiscoveryDecorator($discovery, 'layouts', $this->moduleHandler
                ->getModuleDirectories() + $this->themeHandler
                ->getThemeDirectories());
            $discovery->addTranslatableProperty('label')
                ->addTranslatableProperty('description')
                ->addTranslatableProperty('category');
            $discovery = new AnnotationBridgeDecorator($discovery, $this->pluginDefinitionAnnotationName);
            $discovery = new ContainerDerivativeDiscoveryDecorator($discovery);
            $this->discovery = $discovery;
        }
        return $this->discovery;
    }
    
    /**
     * {@inheritdoc}
     */
    public function processDefinition(&$definition, $plugin_id) {
        parent::processDefinition($definition, $plugin_id);
        if (!$definition instanceof LayoutDefinition) {
            throw new InvalidPluginDefinitionException($plugin_id, sprintf('The "%s" layout definition must extend %s', $plugin_id, LayoutDefinition::class));
        }
        // Add the module or theme path to the 'path'.
        $provider = $definition->getProvider();
        if ($this->moduleHandler
            ->moduleExists($provider)) {
            $base_path = $this->moduleHandler
                ->getModule($provider)
                ->getPath();
        }
        elseif ($this->themeHandler
            ->themeExists($provider)) {
            $base_path = $this->themeHandler
                ->getTheme($provider)
                ->getPath();
        }
        else {
            $base_path = '';
        }
        $path = $definition->getPath();
        $path = !empty($path) ? $base_path . '/' . $path : $base_path;
        $definition->setPath($path);
        // Add the base path to the icon path.
        if ($icon_path = $definition->getIconPath()) {
            $definition->setIconPath($path . '/' . $icon_path);
        }
        // Add a dependency on the provider of the library.
        if ($library = $definition->getLibrary()) {
            $config_dependencies = $definition->getConfigDependencies();
            [
                $library_provider,
            ] = explode('/', $library, 2);
            if ($this->moduleHandler
                ->moduleExists($library_provider)) {
                $config_dependencies['module'][] = $library_provider;
            }
            elseif ($this->themeHandler
                ->themeExists($library_provider)) {
                $config_dependencies['theme'][] = $library_provider;
            }
            $definition->setConfigDependencies($config_dependencies);
        }
        // If 'template' is set, then we'll derive 'template_path' and 'theme_hook'.
        $template = $definition->getTemplate();
        if (!empty($template)) {
            $template_parts = explode('/', $template);
            $template = array_pop($template_parts);
            $template_path = $path;
            if (count($template_parts) > 0) {
                $template_path .= '/' . implode('/', $template_parts);
            }
            $definition->setTemplate($template);
            $definition->setThemeHook(strtr($template, '-', '_'));
            $definition->setTemplatePath($template_path);
        }
        if (!$definition->getDefaultRegion()) {
            $definition->setDefaultRegion(key($definition->getRegions()));
        }
        // Makes sure region names are translatable.
        $regions = array_map(function ($region) {
            if (!$region['label'] instanceof TranslatableMarkup) {
                // Region labels from YAML discovery needs translation.
                $region['label'] = new TranslatableMarkup($region['label'], [], [
                    'context' => 'layout_region',
                ]);
            }
            return $region;
        }, $definition->getRegions());
        $definition->setRegions($regions);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getThemeImplementations() {
        $hooks = [];
        $hooks['layout'] = [
            'render element' => 'content',
        ];
        
        /** @var \Drupal\Core\Layout\LayoutDefinition[] $definitions */
        $definitions = $this->getDefinitions();
        foreach ($definitions as $definition) {
            if ($template = $definition->getTemplate()) {
                $hooks[$definition->getThemeHook()] = [
                    'render element' => 'content',
                    'base hook' => 'layout',
                    'template' => $template,
                    'path' => $definition->getTemplatePath(),
                ];
            }
        }
        return $hooks;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCategories() {
        // Fetch all categories from definitions and remove duplicates.
        $categories = array_unique(array_values(array_map(function (LayoutDefinition $definition) {
            return $definition->getCategory();
        }, $this->getDefinitions())));
        natcasesort($categories);
        return $categories;
    }
    
    /**
     * {@inheritdoc}
     *
     * @return \Drupal\Core\Layout\LayoutDefinition[]
     */
    public function getSortedDefinitions(array $definitions = NULL, $label_key = 'label') {
        // Sort the plugins first by category, then by label.
        $definitions = $definitions ?? $this->getDefinitions();
        // Suppress errors because PHPUnit will indirectly modify the contents,
        // triggering https://bugs.php.net/bug.php?id=50688.
        @uasort($definitions, function (LayoutDefinition $a, LayoutDefinition $b) {
            if ($a->getCategory() != $b->getCategory()) {
                return strnatcasecmp($a->getCategory(), $b->getCategory());
            }
            return strnatcasecmp($a->getLabel(), $b->getLabel());
        });
        return $definitions;
    }
    
    /**
     * {@inheritdoc}
     *
     * @return \Drupal\Core\Layout\LayoutDefinition[][]
     */
    public function getGroupedDefinitions(array $definitions = NULL, $label_key = 'label') {
        $definitions = $this->getSortedDefinitions($definitions ?? $this->getDefinitions(), $label_key);
        $grouped_definitions = [];
        foreach ($definitions as $id => $definition) {
            $grouped_definitions[(string) $definition->getCategory()][$id] = $definition;
        }
        return $grouped_definitions;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getLayoutOptions() {
        $layout_options = [];
        foreach ($this->getGroupedDefinitions() as $category => $layout_definitions) {
            foreach ($layout_definitions as $name => $layout_definition) {
                $layout_options[$category][$name] = $layout_definition->getLabel();
            }
        }
        return $layout_options;
    }

}

Members

Title Sort descending Modifiers Object type Summary Overriden Title Overrides
ContextAwarePluginManagerTrait::contextHandler protected function Wraps the context handler. 1
ContextAwarePluginManagerTrait::getDefinitions abstract public function See \Drupal\Component\Plugin\Discovery\DiscoveryInterface::getDefinitions(). 1
ContextAwarePluginManagerTrait::getDefinitionsForContexts public function See \Drupal\Core\Plugin\Context\ContextAwarePluginManagerInterface::getDefinitionsForContexts().
DefaultPluginManager::$additionalAnnotationNamespaces protected property Additional annotation namespaces.
DefaultPluginManager::$alterHook protected property Name of the alter hook if one should be invoked.
DefaultPluginManager::$cacheKey protected property The cache key.
DefaultPluginManager::$cacheTags protected property An array of cache tags to use for the cached definitions.
DefaultPluginManager::$defaults protected property A set of defaults to be referenced by $this->processDefinition(). 9
DefaultPluginManager::$moduleHandler protected property The module handler to invoke the alter hook. 1
DefaultPluginManager::$namespaces protected property An object of root paths that are traversable.
DefaultPluginManager::$pluginDefinitionAnnotationName protected property The name of the annotation that contains the plugin definition.
DefaultPluginManager::$pluginInterface protected property The interface each plugin should implement. 1
DefaultPluginManager::$subdir protected property The subdirectory within a namespace to look for plugins.
DefaultPluginManager::alterDefinitions protected function Invokes the hook to alter the definitions if the alter hook is set. 1
DefaultPluginManager::alterInfo protected function Sets the alter hook name.
DefaultPluginManager::clearCachedDefinitions public function Clears static and persistent plugin definition caches. Overrides CachedDiscoveryInterface::clearCachedDefinitions 6
DefaultPluginManager::extractProviderFromDefinition protected function Extracts the provider from a plugin definition.
DefaultPluginManager::findDefinitions protected function Finds plugin definitions. 7
DefaultPluginManager::getCacheContexts public function The cache contexts associated with this object. Overrides CacheableDependencyInterface::getCacheContexts
DefaultPluginManager::getCachedDefinitions protected function Returns the cached plugin definitions of the decorated discovery class.
DefaultPluginManager::getCacheMaxAge public function The maximum age for which this object may be cached. Overrides CacheableDependencyInterface::getCacheMaxAge
DefaultPluginManager::getCacheTags public function The cache tags associated with this object. Overrides CacheableDependencyInterface::getCacheTags
DefaultPluginManager::getFactory protected function Gets the plugin factory. Overrides PluginManagerBase::getFactory
DefaultPluginManager::setCacheBackend public function Initialize the cache backend.
DefaultPluginManager::setCachedDefinitions protected function Sets a cache of plugin definitions for the decorated discovery class.
DefaultPluginManager::useCaches public function Disable the use of caches. Overrides CachedDiscoveryInterface::useCaches 1
DiscoveryCachedTrait::$definitions protected property Cached definitions array. 1
DiscoveryCachedTrait::getDefinition public function Overrides DiscoveryTrait::getDefinition 3
DiscoveryTrait::doGetDefinition protected function Gets a specific plugin definition.
DiscoveryTrait::hasDefinition public function
FilteredPluginManagerTrait::getFilteredDefinitions public function Implements \Drupal\Core\Plugin\FilteredPluginManagerInterface::getFilteredDefinitions().
FilteredPluginManagerTrait::moduleHandler protected function Wraps the module handler. 1
FilteredPluginManagerTrait::themeManager protected function Wraps the theme manager. 1
LayoutPluginManager::$themeHandler protected property The theme handler.
LayoutPluginManager::getCategories public function Gets the names of all categories. Overrides CategorizingPluginManagerInterface::getCategories
LayoutPluginManager::getDiscovery protected function Gets the plugin discovery. Overrides DefaultPluginManager::getDiscovery
LayoutPluginManager::getGroupedDefinitions public function Overrides LayoutPluginManagerInterface::getGroupedDefinitions
LayoutPluginManager::getLayoutOptions public function Returns an array of layout labels grouped by category. Overrides LayoutPluginManagerInterface::getLayoutOptions
LayoutPluginManager::getSortedDefinitions public function Overrides LayoutPluginManagerInterface::getSortedDefinitions
LayoutPluginManager::getThemeImplementations public function Gets theme implementations for layouts. Overrides LayoutPluginManagerInterface::getThemeImplementations
LayoutPluginManager::getType protected function A string identifying the plugin type. Overrides FilteredPluginManagerTrait::getType
LayoutPluginManager::processDefinition public function Performs extra processing on plugin definitions. Overrides DefaultPluginManager::processDefinition
LayoutPluginManager::providerExists protected function Determines if the provider of a definition exists. Overrides DefaultPluginManager::providerExists
LayoutPluginManager::__construct public function LayoutPluginManager constructor. Overrides DefaultPluginManager::__construct
PluginManagerBase::$discovery protected property The object that discovers plugins managed by this manager.
PluginManagerBase::$factory protected property The object that instantiates plugins managed by this manager.
PluginManagerBase::$mapper protected property The object that returns the preconfigured plugin instance appropriate for a particular runtime condition.
PluginManagerBase::createInstance public function 12
PluginManagerBase::getInstance public function 6
PluginManagerBase::handlePluginNotFound protected function Allows plugin managers to specify custom behavior if a plugin is not found. 1
UseCacheBackendTrait::$cacheBackend protected property Cache backend instance.
UseCacheBackendTrait::$useCaches protected property Flag whether caches should be used or skipped.
UseCacheBackendTrait::cacheGet protected function Fetches from the cache backend, respecting the use caches flag.
UseCacheBackendTrait::cacheSet protected function Stores data in the persistent cache, respecting the use caches flag.

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