Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

207 lines
4.6 KiB

<?php
/**
* @file src/Core/Renderer.php
*/
namespace Friendica\Core;
use Exception;
use Friendica\DI;
use Friendica\Render\FriendicaSmarty;
use Friendica\Render\ITemplateEngine;
/**
* @brief This class handles Renderer related functions.
*/
class Renderer
{
/**
* @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 $vars Key value pairs (search => replace)
*
* @return string substituted string
* @throws Exception
*/
public static function replaceMacros($s, array $vars = [])
{
$stamp1 = microtime(true);
$a = DI::app();
// pass $baseurl to all templates if it isn't set
$vars = array_merge(['$baseurl' => $a->getBaseURL()], $vars);
$t = self::getTemplateEngine();
try {
$output = $t->replaceMacros($s, $vars);
} catch (Exception $e) {
echo "<pre><b>" . __FUNCTION__ . "</b>: " . $e->getMessage() . "</pre>";
exit();
}
DI::profiler()->saveTimestamp($stamp1, "rendering", System::callstack());
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 = DI::app();
$t = self::getTemplateEngine();
try {
$template = $t->getTemplateFile($s, $root);
} catch (Exception $e) {
echo "<pre><b>" . __FUNCTION__ . "</b>: " . $e->getMessage() . "</pre>";
exit();
}
DI::profiler()->saveTimestamp($stamp1, "file", System::callstack());
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()
{
$template_engine = (self::$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];
}
}