/**
* {@inheritdoc}
*
* For anonymous users, the "active" class will be calculated on the server,
* because most sites serve each anonymous user the same cached page anyway.
* For authenticated users, the "active" class will be calculated on the
* client (through JavaScript), only data- attributes are added to links to
* prevent breaking the render cache. The JavaScript is added in
* system_page_attachments().
*
* @see system_page_attachments()
*/
public function generate($text, Url $url)
{
// Performance: avoid Url::toString() needing to retrieve the URL generator
// service from the container.
$url->setUrlGenerator($this->urlGenerator);
if (is_array($text)) {
$text = $this->renderer->render($text);
}
// Start building a structured representation of our link to be altered later.
$variables = array('text' => $text, 'url' => $url, 'options' => $url->getOptions());
// Merge in default options.
$variables['options'] += array('attributes' => array(), 'query' => array(), 'language' => NULL, 'set_active_class' => FALSE, 'absolute' => FALSE);
// Add a hreflang attribute if we know the language of this link's url and
// hreflang has not already been set.
if (!empty($variables['options']['language']) && !isset($variables['options']['attributes']['hreflang'])) {
$variables['options']['attributes']['hreflang'] = $variables['options']['language']->getId();
}
// Ensure that query values are strings.
array_walk($variables['options']['query'], function (&$value) {
if ($value instanceof MarkupInterface) {
$value = (string) $value;
}
});
// Set the "active" class if the 'set_active_class' option is not empty.
if (!empty($variables['options']['set_active_class']) && !$url->isExternal()) {
// Add a "data-drupal-link-query" attribute to let the
// drupal.active-link library know the query in a standardized manner.
if (!empty($variables['options']['query'])) {
$query = $variables['options']['query'];
ksort($query);
$variables['options']['attributes']['data-drupal-link-query'] = Json::encode($query);
}
// Add a "data-drupal-link-system-path" attribute to let the
// drupal.active-link library know the path in a standardized manner.
if ($url->isRouted() && !isset($variables['options']['attributes']['data-drupal-link-system-path'])) {
// @todo System path is deprecated - use the route name and parameters.
$system_path = $url->getInternalPath();
// Special case for the front page.
$variables['options']['attributes']['data-drupal-link-system-path'] = $system_path == '' ? '<front>' : $system_path;
}
}
// Remove all HTML and PHP tags from a tooltip, calling expensive strip_tags()
// only when a quick strpos() gives suspicion tags are present.
if (isset($variables['options']['attributes']['title']) && strpos($variables['options']['attributes']['title'], '<') !== FALSE) {
$variables['options']['attributes']['title'] = strip_tags($variables['options']['attributes']['title']);
}
// Allow other modules to modify the structure of the link.
$this->moduleHandler->alter('link', $variables);
// Move attributes out of options since generateFromRoute() doesn't need
// them. Include a placeholder for the href.
$attributes = array('href' => '') + $variables['options']['attributes'];
unset($variables['options']['attributes']);
$url->setOptions($variables['options']);
// External URLs can not have cacheable metadata.
if ($url->isExternal()) {
$generated_link = new GeneratedLink();
$attributes['href'] = $url->toString(FALSE);
} else {
$generated_url = $url->toString(TRUE);
$generated_link = GeneratedLink::createFromObject($generated_url);
// The result of the URL generator is a plain-text URL to use as the href
// attribute, and it is escaped by \Drupal\Core\Template\Attribute.
$attributes['href'] = $generated_url->getGeneratedUrl();
}
if (!SafeMarkup::isSafe($variables['text'])) {
$variables['text'] = Html::escape($variables['text']);
}
$attributes = new Attribute($attributes);
// This is safe because Attribute does escaping and $variables['text'] is
// either rendered or escaped.
return $generated_link->setGeneratedLink('<a' . $attributes . '>' . $variables['text'] . '</a>');
}
/**
* {@inheritdoc}
*
* For anonymous users, the "active" class will be calculated on the server,
* because most sites serve each anonymous user the same cached page anyway.
* For authenticated users, the "active" class will be calculated on the
* client (through JavaScript), only data- attributes are added to links to
* prevent breaking the render cache. The JavaScript is added in
* system_page_attachments().
*
* @see system_page_attachments()
*/
public function generate($text, Url $url, $collect_cacheability_metadata = FALSE)
{
// Performance: avoid Url::toString() needing to retrieve the URL generator
// service from the container.
$url->setUrlGenerator($this->urlGenerator);
// Start building a structured representation of our link to be altered later.
$variables = array('text' => is_array($text) ? drupal_render($text) : $text, 'url' => $url, 'options' => $url->getOptions());
// Merge in default options.
$variables['options'] += array('attributes' => array(), 'query' => array(), 'language' => NULL, 'set_active_class' => FALSE, 'absolute' => FALSE);
// Add a hreflang attribute if we know the language of this link's url and
// hreflang has not already been set.
if (!empty($variables['options']['language']) && !isset($variables['options']['attributes']['hreflang'])) {
$variables['options']['attributes']['hreflang'] = $variables['options']['language']->getId();
}
// Set the "active" class if the 'set_active_class' option is not empty.
if (!empty($variables['options']['set_active_class']) && !$url->isExternal()) {
// Add a "data-drupal-link-query" attribute to let the
// drupal.active-link library know the query in a standardized manner.
if (!empty($variables['options']['query'])) {
$query = $variables['options']['query'];
ksort($query);
$variables['options']['attributes']['data-drupal-link-query'] = Json::encode($query);
}
// Add a "data-drupal-link-system-path" attribute to let the
// drupal.active-link library know the path in a standardized manner.
if ($url->isRouted() && !isset($variables['options']['attributes']['data-drupal-link-system-path'])) {
// @todo System path is deprecated - use the route name and parameters.
$system_path = $url->getInternalPath();
// Special case for the front page.
$variables['options']['attributes']['data-drupal-link-system-path'] = $system_path == '' ? '<front>' : $system_path;
}
}
// Remove all HTML and PHP tags from a tooltip, calling expensive strip_tags()
// only when a quick strpos() gives suspicion tags are present.
if (isset($variables['options']['attributes']['title']) && strpos($variables['options']['attributes']['title'], '<') !== FALSE) {
$variables['options']['attributes']['title'] = strip_tags($variables['options']['attributes']['title']);
}
// Allow other modules to modify the structure of the link.
$this->moduleHandler->alter('link', $variables);
// Move attributes out of options. generateFromRoute(() doesn't need them.
$attributes = new Attribute($variables['options']['attributes']);
unset($variables['options']['attributes']);
$url->setOptions($variables['options']);
// The result of the url generator is a plain-text URL. Because we are using
// it here in an HTML argument context, we need to encode it properly.
if (!$collect_cacheability_metadata) {
$url = SafeMarkup::checkPlain($url->toString($collect_cacheability_metadata));
} else {
$generated_url = $url->toString($collect_cacheability_metadata);
$url = SafeMarkup::checkPlain($generated_url->getGeneratedUrl());
$generated_link = GeneratedLink::createFromObject($generated_url);
}
// Make sure the link text is sanitized.
$safe_text = SafeMarkup::escape($variables['text']);
$result = SafeMarkup::set('<a href="' . $url . '"' . $attributes . '>' . $safe_text . '</a>');
return $collect_cacheability_metadata ? $generated_link->setGeneratedLink($result) : $result;
}