' . t('Configure global meta tag default values below. Meta tags may be ') . '
'; - $output .= '' . t('Meta tags inherit from one level to the next unless they are overridden. To view a summary of the meta tags and the inheritance for a specific configuration, click on its name below.') . '
'; + $output = '' . t('Configure global meta tag default values below. Meta tags may be left as the default.') . '
'; + $output .= '' . t('Meta tag patterns are passed down from one level to the next unless they are overridden. To view a summary of the individual meta tags and the pattern for a specific configuration, click on its name below.') . '
'; $output .= '' . t('If the top-level configuration is not specific enough, additional default meta tag configurations can be added for a specific entity type or entity bundle, e.g. for a specific content type.') . '
'; $output .= '' . t('Meta tags can be further refined on a per-entity basis, e.g. for individual nodes, by adding the "Metatag" field to that entity type through its normal field settings pages.') . '
'; return $output; @@ -45,8 +46,8 @@ function metatag_help($route_name, RouteMatchInterface $route_match) { // The 'add default meta tags' configuration page. case 'entity.metatag_defaults.add_form': - $output = '' . t('Use the following form to override the global default meta tags for a specific entity type or entity bundle. In practical terms, this allows the meta tags to be changed for a specific content type or taxonomy vocabulary, so that its content will have different meta tags default values than others.') . '
'; - $output .= '' . t('As a reminder, if the "Metatag" field is added to the entity type through its normal field settings, the meta tags can be further refined on a per entity basis; this allows eg. each node to have its meta tags refined as needed.') . '
'; + $output = '' . t('Use the following form to override the global default meta tags for a specific entity type or entity bundle. In practical terms, this allows the meta tags to be customized for a specific content type or taxonomy vocabulary, so that its content will have different meta tags default values than others.') . '
'; + $output .= '' . t('As a reminder, if the "Metatag" field is added to the entity type through its normal field settings, the meta tags can be further refined on a per entity basis; this allows each node to have its meta tags customized on an individual basis.') . '
'; return $output; break; } @@ -103,7 +104,7 @@ function metatag_form_field_config_edit_form_alter(&$form, FormStateInterface $f */ function metatag_page_attachments(array &$attachments) { if (!metatag_is_current_route_supported()) { - return; + return NULL; } $metatag_attachments = &drupal_static('metatag_attachments'); @@ -112,7 +113,7 @@ function metatag_page_attachments(array &$attachments) { // Load the meta tags from the route. $metatag_attachments = metatag_get_tags_from_route(); if (!$metatag_attachments) { - return; + return NULL; } // If any Metatag items were found, append them. @@ -134,8 +135,8 @@ function metatag_page_attachments(array &$attachments) { * Implements hook_entity_view_alter(). */ function metatag_entity_view_alter(array &$build, EntityInterface $entity, EntityViewDisplayInterface $display) { - // Some entities are built with a link rel="canonical" tag attached. - // If metatag provides one, remove the one built with the entity. + // Some entities are built with a link rel="canonical" and/or link rel="shortlink" tag attached. + // If metatag provides them, remove the ones built with the entity. if (isset($build['#attached']['html_head_link'])) { $metatag_attachments = drupal_static('metatag_attachments'); if (is_null($metatag_attachments)) { @@ -143,20 +144,18 @@ function metatag_entity_view_alter(array &$build, EntityInterface $entity, Entit $metatag_attachments = metatag_get_tags_from_route(); } - // Check to see if the page currently outputs a canonical tag. + // Check to see if the page currently outputs a canonical and/or shortlink tag. if (isset($metatag_attachments['#attached']['html_head'])) { foreach ($metatag_attachments['#attached']['html_head'] as $metatag_item) { - if ($metatag_item[1] == 'canonical_url') { - // Metatag provides a link rel="canonical" tag. + if (in_array($metatag_item[1], array('canonical_url', 'shortlink'))) { + // Metatag provides rel="canonical" and/or rel="shortlink" tags. foreach ($build['#attached']['html_head_link'] as $key => $item) { - if (isset($item[0]['rel']) && $item[0]['rel'] == 'canonical') { - // Remove the link rel="canonical" tag from the entity's build - // array. + if (isset($item[0]['rel']) && in_array($item[0]['rel'], array('canonical', 'shortlink'))) { + // Remove the link rel="canonical" or link rel="shortlink" tag + // from the entity's build array. unset($build['#attached']['html_head_link'][$key]); - break; } } - break; } } } @@ -203,6 +202,15 @@ function metatag_get_route_entity() { return $route_match->getParameter($entity_type); } + // Look for a rest entity view page, e.g. node/{nid}?_format=json, etc. + $matches = []; + // ie: rest.entity.node.GET.json + preg_match('/rest\.entity\.(.*)\.(.*)\.(.*)/', $route_name, $matches); + if (!empty($matches[1])) { + $entity_type = $matches[1]; + return $route_match->getParameter($entity_type); + } + // Look for entity object 'add' pages, e.g. node/add/{bundle}. $route_name_matches = []; preg_match('/(entity\.)?(.*)\.add(_form)?/', $route_name, $route_name_matches); @@ -235,6 +243,26 @@ function metatag_get_route_entity() { } } + // Look for entity object 'add content translation' pages, e.g. + // node/{nid}/translations/add/{source_lang}/{translation_lang} + $route_name_matches = []; + preg_match('/(entity\.)?(.*)\.content_translation_add/', $route_name, $route_name_matches); + if (!empty($route_name_matches[2])) { + $entity_type = $route_name_matches[2]; + $definition = Drupal::entityTypeManager()->getDefinition($entity_type, FALSE); + if (!empty($definition)) { + $node = $route_match->getParameter($entity_type); + $type = $node->bundle(); + if (!empty($type)) { + return \Drupal::entityTypeManager() + ->getStorage($entity_type) + ->create([ + $definition->get('entity_keys')['bundle'] => $type, + ]); + } + } + } + // Special handling for the admin user_create page. In this case, there's only // one bundle and it's named the same as the entity type, so some shortcuts // can be used. @@ -263,7 +291,7 @@ function metatag_get_route_entity() { */ function metatag_preprocess_html(&$variables) { if (!metatag_is_current_route_supported()) { - return; + return NULL; } $attachments = drupal_static('metatag_attachments'); @@ -272,7 +300,7 @@ function metatag_preprocess_html(&$variables) { } if (!$attachments) { - return; + return NULL; } // Load the page title. @@ -307,7 +335,7 @@ function metatag_get_tags_from_route() { // First, get defaults. $metatags = metatag_get_default_tags(); if (!$metatags) { - return; + return NULL; } // Then, set tag overrides for this particular entity. @@ -318,6 +346,13 @@ function metatag_get_tags_from_route() { } } + // Trigger hook_metatags_alter(). + // Allow modules to override tags or the entity used for token replacements. + $context = [ + 'entity' => $entity, + ]; + \Drupal::service('module_handler')->alter('metatags', $metatags, $context); + return $metatag_manager->generateElements($metatags, $entity); } @@ -333,19 +368,11 @@ function metatag_get_default_tags() { // First we load global defaults. $metatags = $global_metatag_manager->load('global'); if (!$metatags) { - return; + return NULL; } // Check if this is a special page. - if (\Drupal::service('path.matcher')->isFrontPage()) { - $special_metatags = $global_metatag_manager->load('front'); - } - elseif (\Drupal::service('current_route_match')->getRouteName() == 'system.403') { - $special_metatags = $global_metatag_manager->load('403'); - } - elseif (\Drupal::service('current_route_match')->getRouteName() == 'system.404') { - $special_metatags = $global_metatag_manager->load('404'); - } + $special_metatags = \Drupal::service('metatag.manager')->getSpecialMetatags(); if (isset($special_metatags)) { $metatags->overwriteTags($special_metatags->get('tags')); }