system.tokens.inc

<?php


/**
 * @file
 * Builds placeholder replacement tokens system-wide data.
 *
 * This file handles tokens for the global 'site' and 'date' tokens.
 */
use Drupal\Core\Url;
use Drupal\Core\Datetime\Entity\DateFormat;
use Drupal\Core\Render\BubbleableMetadata;

/**
 * Implements hook_token_info().
 */
function system_token_info() {
    $types['site'] = [
        'name' => t("Site information"),
        'description' => t("Tokens for site-wide settings and other global information."),
    ];
    $types['date'] = [
        'name' => t("Dates"),
        'description' => t("Tokens related to times and dates."),
    ];
    // Site-wide global tokens.
    $site['name'] = [
        'name' => t("Name"),
        'description' => t("The name of the site."),
    ];
    $site['slogan'] = [
        'name' => t("Slogan"),
        'description' => t("The slogan of the site."),
    ];
    $site['mail'] = [
        'name' => t("Email"),
        'description' => t("The administrative email address for the site."),
    ];
    $site['url'] = [
        'name' => t("URL"),
        'description' => t("The URL of the site's front page."),
    ];
    $site['url-brief'] = [
        'name' => t("URL (brief)"),
        'description' => t("The URL of the site's front page without the protocol."),
    ];
    $site['login-url'] = [
        'name' => t("Login page"),
        'description' => t("The URL of the site's login page."),
    ];
    
    /** @var \Drupal\Core\Datetime\DateFormatterInterface $date_formatter */
    $date_formatter = \Drupal::service('date.formatter');
    // Date related tokens.
    $date['short'] = [
        'name' => t("Short format"),
        'description' => t("A date in 'short' format. (%date)", [
            '%date' => $date_formatter->format(REQUEST_TIME, 'short'),
        ]),
    ];
    $date['medium'] = [
        'name' => t("Medium format"),
        'description' => t("A date in 'medium' format. (%date)", [
            '%date' => $date_formatter->format(REQUEST_TIME, 'medium'),
        ]),
    ];
    $date['long'] = [
        'name' => t("Long format"),
        'description' => t("A date in 'long' format. (%date)", [
            '%date' => $date_formatter->format(REQUEST_TIME, 'long'),
        ]),
    ];
    $date['custom'] = [
        'name' => t("Custom format"),
        'description' => t('A date in a custom format. See <a href="http://php.net/manual/function.date.php">the PHP documentation</a> for details.'),
    ];
    $date['since'] = [
        'name' => t("Time-since"),
        'description' => t("A date in 'time-since' format. (%date)", [
            '%date' => $date_formatter->formatTimeDiffSince(REQUEST_TIME - 360),
        ]),
    ];
    $date['raw'] = [
        'name' => t("Raw timestamp"),
        'description' => t("A date in UNIX timestamp format (%date)", [
            '%date' => REQUEST_TIME,
        ]),
    ];
    return [
        'types' => $types,
        'tokens' => [
            'site' => $site,
            'date' => $date,
        ],
    ];
}

/**
 * Implements hook_tokens().
 */
function system_tokens($type, $tokens, array $data, array $options, BubbleableMetadata $bubbleable_metadata) {
    $token_service = \Drupal::token();
    $url_options = [
        'absolute' => TRUE,
    ];
    if (isset($options['langcode'])) {
        $url_options['language'] = \Drupal::languageManager()->getLanguage($options['langcode']);
        $langcode = $options['langcode'];
    }
    else {
        $langcode = NULL;
    }
    $replacements = [];
    if ($type == 'site') {
        foreach ($tokens as $name => $original) {
            switch ($name) {
                case 'name':
                    $config = \Drupal::config('system.site');
                    $bubbleable_metadata->addCacheableDependency($config);
                    $site_name = $config->get('name');
                    $replacements[$original] = $site_name;
                    break;
                case 'slogan':
                    $config = \Drupal::config('system.site');
                    $bubbleable_metadata->addCacheableDependency($config);
                    $slogan = $config->get('slogan');
                    $build = [
                        '#markup' => $slogan,
                    ];
                    // @todo Fix in https://www.drupal.org/node/2577827
                    $replacements[$original] = \Drupal::service('renderer')->renderPlain($build);
                    break;
                case 'mail':
                    $config = \Drupal::config('system.site');
                    $bubbleable_metadata->addCacheableDependency($config);
                    $replacements[$original] = $config->get('mail');
                    break;
                case 'url':
                    
                    /** @var \Drupal\Core\GeneratedUrl $result */
                    $result = Url::fromRoute('<front>', [], $url_options)->toString(TRUE);
                    $bubbleable_metadata->addCacheableDependency($result);
                    $replacements[$original] = $result->getGeneratedUrl();
                    break;
                case 'url-brief':
                    
                    /** @var \Drupal\Core\GeneratedUrl $result */
                    $result = Url::fromRoute('<front>', [], $url_options)->toString(TRUE);
                    $bubbleable_metadata->addCacheableDependency($result);
                    $replacements[$original] = preg_replace([
                        '!^https?://!',
                        '!/$!',
                    ], '', $result->getGeneratedUrl());
                    break;
                case 'login-url':
                    
                    /** @var \Drupal\Core\GeneratedUrl $result */
                    $result = Url::fromRoute('user.page', [], $url_options)->toString(TRUE);
                    $bubbleable_metadata->addCacheableDependency($result);
                    $replacements[$original] = $result->getGeneratedUrl();
                    break;
            }
        }
    }
    elseif ($type == 'date') {
        if (empty($data['date'])) {
            $date = REQUEST_TIME;
            // We depend on the current request time, so the tokens are not cacheable
            // at all.
            $bubbleable_metadata->setCacheMaxAge(0);
        }
        else {
            $date = $data['date'];
        }
        foreach ($tokens as $name => $original) {
            switch ($name) {
                case 'short':
                case 'medium':
                case 'long':
                    $date_format = DateFormat::load($name);
                    $bubbleable_metadata->addCacheableDependency($date_format);
                    $replacements[$original] = \Drupal::service('date.formatter')->format($date, $name, '', NULL, $langcode);
                    break;
                case 'since':
                    $replacements[$original] = \Drupal::service('date.formatter')->formatTimeDiffSince($date, [
                        'langcode' => $langcode,
                    ]);
                    $bubbleable_metadata->setCacheMaxAge(0);
                    break;
                case 'raw':
                    $replacements[$original] = $date;
                    break;
            }
        }
        if ($created_tokens = $token_service->findWithPrefix($tokens, 'custom')) {
            foreach ($created_tokens as $name => $original) {
                $replacements[$original] = \Drupal::service('date.formatter')->format($date, 'custom', $name, NULL, $langcode);
            }
        }
    }
    return $replacements;
}