metatag.tokens.inc in Metatag 8
Same filename and directory in other branches
Metatag token integration.
File
metatag.tokens.incView source
<?php
/**
* @file
* Metatag token integration.
*/
use Drupal\Component\Utility\Html;
use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Render\BubbleableMetadata;
/**
* Implements hook_token_info().
*/
function metatag_token_info() {
$info = [];
$group_manager = \Drupal::service('plugin.manager.metatag.group');
$tag_manager = \Drupal::service('plugin.manager.metatag.tag');
$tag_definitions = $tag_manager
->getDefinitions();
$info['types']['metatag'] = [
'name' => t('Metatags'),
'description' => t('Tokens related to Metatags.'),
'needs-data' => 'metatag',
];
foreach ($tag_definitions as $tag_id => $tag_definition) {
$label = $tag_definition['label'];
$description = $tag_definition['description'];
$multiple = $tag_definition['multiple'];
$metatag_token_name = 'metatag-' . $tag_id;
$group = $group_manager
->getDefinition($tag_definition['group']);
if ($group) {
$label = $group['label'] . ': ' . $label;
}
$info['tokens']['current-page']['metatag'] = [
'name' => t('Metatags'),
'description' => t('Metatag values for the current page.'),
'type' => 'metatag',
];
$info['tokens']['metatag'][$tag_id] = [
'name' => Html::escape($label),
'description' => $description,
'type' => $multiple ? "list<{$metatag_token_name}>" : $metatag_token_name,
];
$info['types'][$metatag_token_name] = [
'name' => Html::escape($label),
'description' => t('@label tokens.', [
'@label' => Html::escape($label),
]),
'needs-data' => $metatag_token_name,
'nested' => TRUE,
];
$info['tokens'][$metatag_token_name]['value'] = [
'name' => Html::escape($label),
'module' => 'metatag',
'description' => $description,
];
// Tag list token type.
if ($multiple) {
$info['types']["list<{$metatag_token_name}>"] = [
'name' => t('List of @type values', [
'@type' => Html::escape($label),
]),
'description' => t('Tokens for lists of @type values.', [
'@type' => Html::escape($label),
]),
'needs-data' => "list<{$metatag_token_name}>",
'nested' => TRUE,
];
// Show a different token for each tag delta.
// Since we don't know how many there will be, we will just show 3.
for ($delta = 0; $delta < 3; $delta++) {
$info['tokens']["list<{$metatag_token_name}>"][$delta] = [
'name' => t('@type type with delta @delta', [
'@type' => Html::escape($label),
'@delta' => $delta,
]),
'module' => 'token',
'type' => $metatag_token_name,
];
}
}
}
return $info;
}
/**
* Implements hook_token_info_alter().
*/
function metatag_token_info_alter(&$info) {
foreach (\Drupal::entityTypeManager()
->getDefinitions() as $entity_type_id => $entity_type) {
if (!$entity_type
->entityClassImplements(ContentEntityInterface::class)) {
continue;
}
// Make sure a token type exists for this entity.
$token_type = \Drupal::service('token.entity_mapper')
->getTokenTypeForEntityType($entity_type_id);
if (empty($token_type) || !isset($info['types'][$token_type])) {
continue;
}
$fields = \Drupal::entityTypeManager()
->getStorage('field_storage_config')
->loadByProperties([
'entity_type' => $entity_type_id,
'type' => 'metatag',
]);
foreach ($fields as $field) {
$field_token_name = $token_type . '-' . $field
->getName();
$info['types'][$field_token_name] = [
'name' => Html::escape($field
->getName()),
'description' => t('@label tokens.', [
'@label' => Html::escape($field
->getName()),
]),
'needs-data' => $field_token_name,
'nested' => TRUE,
'type' => 'metatag',
'module' => 'metatag',
];
}
}
}
/**
* Implements hook_tokens().
*/
function metatag_tokens($type, $tokens, array $data, array $options, BubbleableMetadata $bubbleable_metadata) {
$replacements = [];
switch ($type) {
case 'current-page':
/** @var \Drupal\token\TokenInterface $token_service */
$token_service = \Drupal::token();
$metatag_tokens = $token_service
->findWithPrefix($tokens, 'metatag');
if (!empty($metatag_tokens) && metatag_is_current_route_supported()) {
// Add cache contexts to ensure this token functions on a per-path
// basis.
$bubbleable_metadata
->addCacheContexts([
'url.site',
]);
$replacements += $token_service
->generate('metatag', $metatag_tokens, [], $options, $bubbleable_metadata);
}
break;
case 'entity':
if (!empty($data['entity_type']) && !empty($data['entity']) && !empty($data['token_type'])) {
/* @var \Drupal\Core\Entity\ContentEntityInterface $entity */
$entity = $data['entity'];
if (!$entity instanceof ContentEntityInterface) {
return $replacements;
}
$metatag_fields = [];
foreach ($tokens as $name => $original) {
$field_name = explode(':', $name)[0];
if ($entity
->hasField($field_name) && $entity
->get($field_name)
->getFieldDefinition()
->getType() === 'metatag') {
$metatag_fields[] = $field_name;
}
}
if (!empty($metatag_fields)) {
/** @var \Drupal\token\TokenInterface $token_service */
$token_service = \Drupal::token();
$metatag_tokens = [];
foreach ($metatag_fields as $metatag_field) {
$metatag_tokens += $token_service
->findWithPrefix($tokens, $metatag_field);
}
$replacements += $token_service
->generate('metatag', $metatag_tokens, [
'entity' => $entity,
], $options, $bubbleable_metadata);
}
}
break;
case 'metatag':
$metatag_manager = \Drupal::service('metatag.manager');
$entity = $options['entity'] ?? metatag_get_route_entity();
$tags = metatag_get_default_tags($entity);
if ($entity instanceof ContentEntityInterface) {
// If content entity does not have an ID the page is likely an "Add"
// page, so skip processing for entity which has not been created yet.
if (!$entity
->id()) {
return NULL;
}
$tags += $metatag_manager
->tagsFromEntity($entity);
}
// 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', $tags, $context);
// If the entity was changed above, use that for generating the meta tags.
if (isset($context['entity'])) {
$entity = $context['entity'];
}
$processed_tags = $metatag_manager
->generateTokenValues($tags, $entity);
foreach ($tokens as $name => $original) {
// For the [metatag:tag_name] token.
if (strpos($name, ':') === FALSE) {
$tag_name = $name;
}
else {
list($tag_name, $delta) = explode(':', $name, 2);
if (!is_numeric($delta)) {
unset($delta);
}
}
// Replace dashes (-) with underscores (_) for e.g. canonical-url.
$tag_name = str_replace('-', '_', $tag_name);
if (empty($processed_tags[$tag_name])) {
continue;
}
// Render only one delta.
if (isset($delta)) {
$replacements[$original] = $processed_tags[$tag_name][$delta] ?? NULL;
}
else {
if (is_array($processed_tags[$tag_name])) {
$replacements[$original] = implode(',', $processed_tags[$tag_name]);
}
else {
$replacements[$original] = $processed_tags[$tag_name];
}
}
}
break;
}
return $replacements;
}
Functions
Name | Description |
---|---|
metatag_tokens | Implements hook_tokens(). |
metatag_token_info | Implements hook_token_info(). |
metatag_token_info_alter | Implements hook_token_info_alter(). |