.
*
*/
namespace Friendica\Core;
use Exception;
use Friendica\DI;
use Friendica\Render\TemplateEngine;
/**
* This class handles Renderer related functions.
*/
class Renderer
{
/**
* An array of registered template engines ('name'=>'class name')
*/
public static $template_engines = [];
/**
* An array of instanced template engines ('name'=>'instance')
*/
public static $template_engine_instance = [];
/**
* An array for all theme-controllable parameters
*
* Mostly unimplemented yet. Only options 'template_engine' and
* beyond are used.
*/
public static $theme = [
'sourcename' => '',
'videowidth' => 425,
'videoheight' => 350,
'force_max_items' => 0,
'stylesheet' => '',
'template_engine' => 'smarty3',
];
private static $ldelim = [
'internal' => '',
'smarty3' => '{{'
];
private static $rdelim = [
'internal' => '',
'smarty3' => '}}'
];
/**
* Returns the rendered template output from the template string and variables
*
* @param string $template
* @param array $vars
* @return string
*/
public static function replaceMacros(string $template, array $vars)
{
$stamp1 = microtime(true);
// pass $baseurl to all templates if it isn't set
$vars = array_merge(['$baseurl' => DI::baseUrl()->get(), '$APP' => DI::app()], $vars);
$t = self::getTemplateEngine();
try {
$output = $t->replaceMacros($template, $vars);
} catch (Exception $e) {
echo "" . __FUNCTION__ . ": " . $e->getMessage() . "
";
exit();
}
DI::profiler()->saveTimestamp($stamp1, "rendering", System::callstack());
return $output;
}
/**
* Load a given template $s
*
* @param string $file Template to load.
* @param string $subDir Subdirectory (Optional)
*
* @return string template.
* @throws Exception
*/
public static function getMarkupTemplate($file, $subDir = '')
{
$stamp1 = microtime(true);
$t = self::getTemplateEngine();
try {
$template = $t->getTemplateFile($file, $subDir);
} catch (Exception $e) {
echo "" . __FUNCTION__ . ": " . $e->getMessage() . "
";
exit();
}
DI::profiler()->saveTimestamp($stamp1, "file", System::callstack());
return $template;
}
/**
* Register template engine class
*
* @param string $class
*/
public static function registerTemplateEngine($class)
{
$v = get_class_vars($class);
if (!empty($v['name'])) {
$name = $v['name'];
self::$template_engines[$name] = $class;
} else {
echo "template engine $class cannot be registered without a name.\n";
die();
}
}
/**
* Return template engine instance.
*
* If $name is not defined, return engine defined by theme,
* or default
*
* @return TemplateEngine Template Engine instance
*/
public static function getTemplateEngine()
{
$template_engine = (self::$theme['template_engine'] ?? '') ?: 'smarty3';
if (isset(self::$template_engines[$template_engine])) {
if (isset(self::$template_engine_instance[$template_engine])) {
return self::$template_engine_instance[$template_engine];
} else {
$a = DI::app();
$class = self::$template_engines[$template_engine];
$obj = new $class($a->getCurrentTheme(), $a->theme_info);
self::$template_engine_instance[$template_engine] = $obj;
return $obj;
}
}
echo "template engine $template_engine is not registered!\n";
exit();
}
/**
* Returns the active template engine.
*
* @return string the active template engine
*/
public static function getActiveTemplateEngine()
{
return self::$theme['template_engine'];
}
/**
* sets the active template engine
*
* @param string $engine the template engine (default is Smarty3)
*/
public static function setActiveTemplateEngine($engine = 'smarty3')
{
self::$theme['template_engine'] = $engine;
}
/**
* Gets the right delimiter for a template engine
*
* Currently:
* Internal = ''
* Smarty3 = '{{'
*
* @param string $engine The template engine (default is Smarty3)
*
* @return string the right delimiter
*/
public static function getTemplateLeftDelimiter($engine = 'smarty3')
{
return self::$ldelim[$engine];
}
/**
* Gets the left delimiter for a template engine
*
* Currently:
* Internal = ''
* Smarty3 = '}}'
*
* @param string $engine The template engine (default is Smarty3)
*
* @return string the left delimiter
*/
public static function getTemplateRightDelimiter($engine = 'smarty3')
{
return self::$rdelim[$engine];
}
}