/**
* Saves state information for all subcomponents to $this->globalState.
* @return array
*/
private function getGlobalState($forClass = NULL)
{
$sinces =& $this->globalStateSinces;
if ($this->globalState === NULL) {
if ($this->phase >= self::PHASE_SHUTDOWN) {
throw new InvalidStateException("Presenter is shutting down, cannot save state.");
}
$state = array();
foreach ($this->globalParams as $id => $params) {
$prefix = $id . self::NAME_SEPARATOR;
foreach ($params as $key => $val) {
$state[$prefix . $key] = $val;
}
}
$this->saveState($state, $forClass);
if ($sinces === NULL) {
$sinces = array();
foreach (PresenterHelpers::getPersistentParams(get_class($this)) as $nm => $meta) {
$sinces[$nm] = $meta['since'];
}
}
$components = PresenterHelpers::getPersistentComponents(get_class($this));
$iterator = $this->getComponents(TRUE, 'Nette\\Application\\IStatePersistent');
foreach ($iterator as $name => $component) {
if ($iterator->getDepth() === 0) {
// counts with RecursiveIteratorIterator::SELF_FIRST
$since = isset($components[$name]['since']) ? $components[$name]['since'] : FALSE;
// FALSE = nonpersistent
}
$prefix = $component->getUniqueId() . self::NAME_SEPARATOR;
$params = array();
$component->saveState($params);
foreach ($params as $key => $val) {
$state[$prefix . $key] = $val;
$sinces[$prefix . $key] = $since;
}
}
} else {
$state = $this->globalState;
}
if ($forClass !== NULL) {
$since = NULL;
foreach ($state as $key => $foo) {
if (!isset($sinces[$key])) {
$x = strpos($key, self::NAME_SEPARATOR);
$x = $x === FALSE ? $key : substr($key, 0, $x);
$sinces[$key] = isset($sinces[$x]) ? $sinces[$x] : FALSE;
}
if ($since !== $sinces[$key]) {
$since = $sinces[$key];
$ok = $since && (is_subclass_of($forClass, $since) || $forClass === $since);
}
if (!$ok) {
unset($state[$key]);
}
}
}
return $state;
}
/**
* Saves state informations for next request.
* @param array
* @param portion specified by class name (used by Presenter)
* @return void
*/
public function saveState(array &$params, $forClass = NULL)
{
foreach (PresenterHelpers::getPersistentParams($forClass === NULL ? $this->getClass() : $forClass) as $nm => $meta) {
if (isset($params[$nm])) {
$val = $params[$nm];
// injected value
} elseif (array_key_exists($nm, $params)) {
// $params[$nm] === NULL
continue;
// means skip
} elseif (!isset($meta['since']) || $this instanceof $meta['since']) {
$val = $this->{$nm};
// object property value
} else {
continue;
// ignored parameter
}
if (is_object($val)) {
throw new InvalidStateException("Persistent parameter must be scalar or array, '{$this->class}::\${$nm}' is " . gettype($val));
} else {
if (isset($meta['def'])) {
settype($val, gettype($meta['def']));
if ($val === $meta['def']) {
$val = NULL;
}
} else {
if ((string) $val === '') {
$val = NULL;
}
}
$params[$nm] = $val;
}
}
}
