/**
* Process a template (catch displayed content)
*
* @param string $id template id
* @param array $vars template variables
*
* @return string parsed template content
*/
public static function process($id, $vars = array())
{
// Are we asked to not output context related html comments ?
$addctx = true;
if (substr($id, 0, 1) == '!') {
$addctx = false;
$id = substr($id, 1);
}
// Resolve template file path
$path = self::resolve($id);
return (new Event('template_process', $id, $path, $vars, $addctx))->trigger(function ($id, $path, $vars, $addctx) {
// Lambda renderer to isolate context
$renderer = function ($_path, $_vars) {
foreach ($_vars as $_k => $_v) {
if (substr($_k, 0, 1) != '_') {
${$_k} = $_v;
}
}
include $_path;
};
// Render
$exception = null;
ob_start();
try {
$renderer($path, $vars);
} catch (Exception $e) {
$exception = $e;
}
$content = ob_get_clean();
// Translation syntax
$content = preg_replace_callback('`\\{(loc|tr|translate):([^}]+)\\}`', function ($m) {
return (string) Lang::translate($m[2]);
}, $content);
// Config syntax
$content = preg_replace_callback('`\\{(cfg|conf|config):([^}]+)\\}`', function ($m) {
return Config::get($m[2]);
}, $content);
// Image syntax
$content = preg_replace_callback('`\\{(img|image):([^}]+)\\}`', function ($m) {
return GUI::path('images/' . $m[2]);
}, $content);
// Path syntax
$content = preg_replace_callback('`\\{(path):([^}]*)\\}`', function ($m) {
return GUI::path($m[2]);
}, $content);
// URL syntax
$content = preg_replace_callback('`\\{(url):([^}]*)\\}`', function ($m) {
return preg_replace('`^(https?://)?([^/]+)/`', '/', Config::get('application_url')) . $m[2];
}, $content);
// Add context as a html comment if required
if ($addctx) {
$content = "\n" . '<!-- template:' . $id . ' start -->' . "\n" . $content . "\n" . '<!-- template:' . $id . ' end -->' . "\n";
}
// If rendering threw rethrow
if ($exception) {
throw $exception;
}
return $content;
});
}
/**
* Compute base path
*
* @param mixed $location location to append
*
* @return string
*/
public static function path($location = null)
{
if (is_null(self::$path)) {
self::$path = preg_replace('`^(https?://)?([^/]+)/`', '/', Config::get('application_url'));
}
if (is_array($location)) {
return array_map(function ($l) {
return GUI::path($l);
}, $location);
}
if ($location && substr($location, -1) != '/' && substr($location, 0, 1) != '?') {
$location .= (strpos($location, '?') ? '&' : '?') . 'v=' . Utilities::runningInstanceUID();
}
return self::$path . $location;
}
