.
*
*/
namespace Friendica\Render;
use Friendica\Core\Hook;
use Friendica\DI;
use Friendica\Util\Strings;
/**
* Smarty implementation of the Friendica template abstraction
*/
final class FriendicaSmartyEngine extends TemplateEngine
{
static $name = "smarty3";
const FILE_PREFIX = 'file:';
const STRING_PREFIX = 'string:';
/** @var FriendicaSmarty */
private $smarty;
/**
* @inheritDoc
*/
public function __construct(string $theme, array $theme_info)
{
$this->theme = $theme;
$this->theme_info = $theme_info;
$this->smarty = new FriendicaSmarty($this->theme, $this->theme_info);
if (!is_writable(DI::basePath() . '/view/smarty3')) {
echo "ERROR: folder view/smarty3/ must be writable by webserver.";
exit();
}
}
/**
* @inheritDoc
*/
public function replaceMacros(string $template, array $vars)
{
if (!Strings::startsWith($template, self::FILE_PREFIX)) {
$template = self::STRING_PREFIX . $template;
}
// "middleware": inject variables into templates
$arr = [
'template' => basename($this->smarty->filename),
'vars' => $vars
];
Hook::callAll('template_vars', $arr);
$vars = $arr['vars'];
foreach ($vars as $key => $value) {
if ($key[0] === '$') {
$key = substr($key, 1);
}
$this->smarty->assign($key, $value);
}
return $this->smarty->fetch($template);
}
/**
* @inheritDoc
*/
public function getTemplateFile(string $file, string $subDir = '')
{
// Make sure $root ends with a slash /
if ($subDir !== '' && substr($subDir, -1, 1) !== '/') {
$subDir = $subDir . '/';
}
$root = DI::basePath() . '/' . $subDir;
$filename = $this->smarty::SMARTY3_TEMPLATE_FOLDER . '/' . $file;
if (file_exists("{$root}view/theme/$this->theme/$filename")) {
$template_file = "{$root}view/theme/$this->theme/$filename";
} elseif (!empty($this->theme_info['extends']) && file_exists(sprintf('%sview/theme/%s}/%s', $root, $this->theme_info['extends'], $filename))) {
$template_file = sprintf('%sview/theme/%s}/%s', $root, $this->theme_info['extends'], $filename);
} elseif (file_exists("{$root}/$filename")) {
$template_file = "{$root}/$filename";
} else {
$template_file = "{$root}view/$filename";
}
$this->smarty->filename = $template_file;
return self::FILE_PREFIX . $template_file;
}
}