Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file src/Core/Renderer.php
*/
namespace Friendica\Core;
use Exception;
use Friendica\BaseObject;
use Friendica\Render\FriendicaSmarty;
use Friendica\Render\ITemplateEngine;
/**
* @brief This class handles Renderer related functions.
*/
class Renderer extends BaseObject
{
/**
* @brief An array of registered template engines ('name'=>'class name')
*/
public static $template_engines = [];
/**
* @brief An array of instanced template engines ('name'=>'instance')
*/
public static $template_engine_instance = [];
/**
* @brief 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' => '}}'
];
/**
* @brief This is our template processor
*
* @param string|FriendicaSmarty $s The string requiring macro substitution or an instance of FriendicaSmarty
* @param array $vars key value pairs (search => replace)
*
* @return string substituted string
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
public static function replaceMacros($s, $vars)
{
$stamp1 = microtime(true);
$a = self::getApp();
// pass $baseurl to all templates
$vars['$baseurl'] = System::baseUrl();
$t = self::getTemplateEngine();
try {
$output = $t->replaceMacros($s, $vars);
} catch (Exception $e) {
echo "<pre><b>" . __FUNCTION__ . "</b>: " . $e->getMessage() . "</pre>";
exit();
}
$a->saveTimestamp($stamp1, "rendering");
return $output;
}
/**
* @brief Load a given template $s
*
* @param string $s Template to load.
* @param string $root Optional.
*
* @return string template.
* @throws Exception
*/
public static function getMarkupTemplate($s, $root = '')
{
$stamp1 = microtime(true);
$a = self::getApp();
$t = self::getTemplateEngine();
try {
$template = $t->getTemplateFile($s, $root);
} catch (Exception $e) {
echo "<pre><b>" . __FUNCTION__ . "</b>: " . $e->getMessage() . "</pre>";
exit();
}
$a->saveTimestamp($stamp1, "file");
return $template;
}
/**
* @brief 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] = $class;
} else {
echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
die();
}
}
/**
* @brief Return template engine instance.
*
* If $name is not defined, return engine defined by theme,
* or default
*
* @return ITemplateEngine Template Engine instance
*/
public static function getTemplateEngine()
{
$template_engine = defaults(self::$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 {
$class = self::$template_engines[$template_engine];
$obj = new $class;
self::$template_engine_instance[$template_engine] = $obj;
return $obj;
}
}
echo "template engine <tt>$template_engine</tt> is not registered!\n";
exit();
}
/**
* @brief 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];
}
}