function get()
{
global $REX;
if ($this->checkPermission()) {
$callable = array($this, '_get');
$cachekey = $this->funcCache->computeCacheKey($callable, array($REX['USER']->getUserLogin()));
$cacheBackend = $this->funcCache->getCache();
$configForm = '';
if ($this->config) {
$configForm = $this->config ? $this->config->get() : '';
// config changed -> remove cache to reflect changes
if ($this->config->changed()) {
$cacheBackend->remove($cachekey);
}
}
// refresh clicked in actionbar
if (rex_get('refresh', 'string') == $this->getId()) {
$cacheBackend->remove($cachekey);
}
// prueft ob inhalte des callables gecacht vorliegen
$content = $this->funcCache->call($callable, array($REX['USER']->getUserLogin()));
// wenn gecachter inhalt leer ist, vom cache entfernen und nochmals checken
// damit leere komponenten sofort angezeigt werden, wenn neue inhalte verfuegbar sind
if ($content == '') {
$cacheBackend->remove($cachekey);
$content = $this->funcCache->call($callable, array($REX['USER']->getUserLogin()));
}
$cachestamp = $cacheBackend->getLastModified($cachekey);
if (!$cachestamp) {
$cachestamp = time();
}
// falls kein gueltiger cache vorhanden
$cachetime = rex_formatter::format($cachestamp, 'strftime', 'datetime');
$content = strtr($content, array('%%actionbar%%' => $this->getActionBar()));
$content = strtr($content, array('%%cachetime%%' => $cachetime));
$content = strtr($content, array('%%config%%' => $configForm));
// refresh clicked in actionbar
if (rex_get('ajax-get', 'string') == $this->getId()) {
// clear output-buffer
while (@ob_end_clean()) {
}
rex_send_resource($content);
exit;
}
return $content;
}
return '';
}
function send($lastModified = null)
{
ob_start();
$res = $this->_sendImage(null, $lastModified);
$content = ob_get_clean();
if (!$res) {
return false;
}
$this->sendHeader();
rex_send_resource($content, false, $lastModified);
}
