Buenas, estoy haciendo una aplicacion web usando comet, por ahora llevo un reloj hecho no mas, pero eh notado en el navegador de google, queda siempre cargando, por mas que funcione todo, el puntero del 'maus' queda siempre cargando.
Aca esta el 'backend'
Código PHP:
<?php
class Backend_Controller extends BM_Controller
{
public function index()
{
set_time_limit(0);
header("Cache-Control: no-cache, must-revalidate");
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
flush();
$this->__header();
while(1) :
$time2 = date("h:i:s");
echo "<script type=\"text/javascript\">";
echo "tsf.time('{$time2}');";
echo "</script>";
sleep(1);
flush();
endwhile;
$this->__footer();
die();
}
private function __header()
{
$config = BM_Config::singleton();
$url = $config->read('url');
echo '<head>
<title>Backend</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<script type="text/javascript">
var is_khtml = navigator.appName.match("Konqueror") || navigator.appVersion.match("KHTML");
if (is_khtml)
{
var prototypejs = document.createElement("script");
prototypejs.setAttribute("type","text/javascript");
prototypejs.setAttribute("src","javascript/prototype.js");
var head = document.getElementsByTagName("head");
head[0].appendChild(prototypejs);
}
var tsf = window.parent.tsf;
</script>';
}
private function __footer()
{
echo "
</body>
</html>";
}
}
?>
Y aca dejo el codigo del comet, donde creo iframe etc.
Código:
var tsf = {
time:function(hour)
{
jQuery("#hour").html(hour);
//console.log(hour);
}
};
var comet = {
connection : false,
iframediv : false,
requestPhp : "index.php?controller=backend",
initialize: function()
{
if (navigator.appVersion.indexOf("MSIE") != -1)
{
// For internet explorer
comet.connection = new ActiveXObject("htmlfile");
comet.connection.open();
comet.connection.write("<html>");
comet.connection.write("<script>document.domain = '"+document.domain+"'");
comet.connection.write("</html>");
comet.connection.close();
comet.iframediv = comet.connection.createElement("div");
comet.connection.appendChild(comet.iframediv);
comet.connection.parentWindow.comet = comet;
comet.connection.parentWindow.tsf = tsf;
comet.iframediv.innerHTML = "<iframe id='comet_iframe' src='" + comet.requestPhp + "'></iframe>";
}
else if (navigator.appVersion.indexOf("KHTML") != -1)
{
// For KHTML browsers
comet.connection = document.createElement('iframe');
comet.connection.setAttribute('id', 'comet_iframe');
comet.connection.setAttribute('src', comet.requestPhp);
with (comet.connection.style)
{
position = "absolute";
left = top = "-100px";
height = width = "1px";
visibility = "hidden";
}
document.body.appendChild(comet.connection);
}
else
{
// Firefox and others
comet.connection = document.createElement('iframe');
comet.connection.setAttribute('id', 'comet_iframe');
with (comet.connection.style) {
left = top = "-100px";
height = width = "1px";
visibility = "hidden";
display = 'none';
}
comet.iframediv = document.createElement('iframe');
comet.iframediv.setAttribute('src', comet.requestPhp);
comet.connection.appendChild(comet.iframediv);
document.body.appendChild(comet.connection);
}
},
onUnload: function()
{
if (comet.connection)
{
comet.connection = false;
}
}
};
Código:
<body>
<script type="text/javascript">
Event.observe(window, "load", comet.initialize);
Event.observe(window, "unload", comet.onUnload);
</script>
O sea todo funciona bien, pero no entiendo porque en chrome siempre queda cargando..
