StateMgr.php
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<?php
class StateMgr
{
protected $stateXmlName, $stateXml;
protected $rootElement;
function __construct()
{
$this->stateXmlName = USERWSDIR."State.xml";
$this->stateXml = new DomDocument("1.0");
if (file_exists($this->stateXmlName))
{
$this->stateXml->load($this->stateXmlName);
$this->rootElement = $this->stateXml->documentElement;
}
else
{
$this->rootElement = $this->stateXml->createElement('state');
$this->stateXml->appendChild($this->rootElement);
$this->stateXml->save($this->stateXmlName);
}
}
function saveState($datas)
{
if (!isset($this->rootElement))
return array('error' => true, 'message' => 'Root node not defined.');
while ($this->rootElement->hasChildNodes())
$this->rootElement->removeChild($this->rootElement->childNodes->item(0));
foreach ($datas as $key => $value)
{
$node = $this->stateXml->createElement("ui",$value);
$node->setAttribute("name",$key);
$this->rootElement->appendChild($node);
}
$this->stateXml->save($this->stateXmlName);
return array('error' => false);
}
function loadState()
{
if (!isset($this->rootElement))
return array('error' => true, 'message' => 'Root node not defined.');
$state = array();
$uis = $this->rootElement->getElementsByTagName('ui');
foreach($uis as $ui)
{
$name = $ui->getAttribute("name");
$value = $ui->nodeValue;
$state[$name] = $value;
}
return array('error' => false, 'state' => $state);
}
}
?>