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<?php
/**
* An example of Listener usage with HTTP_Request and HTML_Progress.
*
* Credit: Alexey Borzov <avb@php.net>
* for his download-progress.php pattern in HTTP_Request package
*
* @version $Id: shockwaveflash.php,v 1.3 2005/08/28 14:58:19 farell Exp $
* @author Laurent Laville <pear@laurent-laville.org>
* @package HTML_Progress
* @subpackage Examples
*/
require_once 'HTTP/Request.php';
require_once 'HTTP/Request/Listener.php';
require_once 'HTML/Progress.php';
/**
* @ignore
*/
class HTTP_Request_DownloadListener extends HTTP_Request_Listener
{
/**
* Handle for the target file
* @var int
*/
var $_fp;
/**
* ProgressBar intance used to display the indicator
* @var object
*/
var $_bar;
/**
* Name of the target file
* @var string
*/
var $_target;
/**
* Number of bytes received so far
* @var int
*/
var $_size = 0;
function HTTP_Request_DownloadListener()
{
$this->HTTP_Request_Listener();
}
/**
* Opens the target file
* @param string Target file name
* @throws PEAR_Error
*/
function setTarget($target)
{
$this->_target = $target;
$this->_fp = @fopen($target, 'wb');
if (!$this->_fp) {
PEAR::raiseError("Cannot open '{$target}'");
}
}
function update(&$subject, $event, $data = null)
{
switch ($event) {
case 'sentRequest':
$this->_target = basename($subject->_url->path);
break;
case 'gotHeaders':
if (isset($data['content-disposition']) &&
preg_match('/filename="([^"]+)"/', $data['content-disposition'], $matches)) {
$this->setTarget(basename($matches[1]));
} else {
$this->setTarget($this->_target);
}
$this->_bar =& new HTML_Progress();
$this->_bar->setAnimSpeed(10);
$inc = isset($data['content-length'])? round($data['content-length'] / 100) : 1;
$this->_bar->setIncrement(intval($inc));
echo '<style type="text/css">'.$this->_bar->getStyle().'</style>';
echo '<script type="text/javascript">'.$this->_bar->getScript().'</script>';
echo $this->_bar->toHtml();
$this->_size = 0;
break;
case 'tick':
$this->_size += strlen($data);
$this->_bar->display();
$val = round($this->_size / $this->_bar->getIncrement());
$this->_bar->setValue(intval($val));
fwrite($this->_fp, $data);
break;
case 'gotBody':
fclose($this->_fp);
break;
default:
PEAR::raiseError("Unhandled event '{$event}'");
} // switch
}
}
$url = 'http://pear.laurent-laville.org/HTML_Progress/examples/viewlet/sw4p.swf';
$req =& new HTTP_Request($url);
$download =& new HTTP_Request_DownloadListener();
$req->attach($download);
$req->sendRequest(false);
$href = 'http://'.$_SERVER['SERVER_NAME']. dirname($_SERVER['PHP_SELF']) . '/sw4p.html';
$go = '<script type="text/javascript">window.location.href="'.$href.'";</script>';
echo $go;
?>
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