Conception de classe AJAX
Bonjour
J'ai passé l'après-midi dessus mais je ne trouve pas l'erreur dans ce code :(
la requête se déroule correctement, cependant la réponse n'est pas intercepté par le javascript :?
un debuggage sous firebug n'a rien donné, je sèche...
AJAX.js
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| var AJAX = function(_call, _method, _synchronous, _response, _wait)
{
if (_method != "GET" && _method != "POST")
{
_method = "GET";
window.alert("Invalid method received (should be GET or POST)");
}
this.call = _call;
this.method = _method;
this.parameters = new Array();
this.numberParameters = 0;
this.object = false;
this.synchronous = _synchronous;
this.divWait = _wait;
this.divResponse = _response;
if (window.XMLHttpRequest)
{
this.object = new XMLHttpRequest();
}
else if (window.ActiveXthis.object)
{
this.object = new ActiveXthis.object("Microsoft.XMLHTTP");
}
else
{
window.alert("Your browser does not support AJAX");
}
this.object.onreadystatechange = function ()
{
if (this.object.readyState == 4)
{
if (this.object.status == 200)
{
this.divWait.innerHTML = "";
this.divResponse.innerHTML = this.object.responseText;
alert("cas 1");
}
else
{
this.divWait.innerHTML = "Document not found";
alert("cas 2");
}
}
else
{
this.divWait.innerHTML = "Step " + (this.object.readyState + 1) + " / 5<br />Loading, please wait...";
alert("cas 3");
}
}
}
AJAX.prototype.toString = function ()
{
return "AJAX Class";
}
AJAX.prototype.reset = function ()
{
this.parameters = new Array();
this.numberParameters = 0;
}
AJAX.prototype.addParameter = function (_name, _value)
{
this.parameters[this.numberParameters++] = new Array(_name, escape(_value));
}
AJAX.prototype.loadResponse = function (_event)
{
if (this.method == "GET")
{
realCall = this.call + "?";
for (var i = 0; i < this.numberParameters; i++)
{
realCall += this.parameters[i][0] + "=" + this.parameters[i][1] + "&";
}
realCall = realCall.substr(0, realCall.length - 1);
this.object.open(this.method, realCall, this.synchronous);
this.object.send(null);
}
else
{
this.object.open(this.method, this.call, this.synchronous);
this.object.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
realCall = "";
for (var i = 0; i < this.numberParameters; i++)
{
realCall += this.parameters[i][0] + "=" + this.parameters[i][1] + "&";
}
realCall = realCall.substr(0, realCall.length - 1);
this.object.send(realCall);
}
} |
page de test
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| <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title></title>
<script type="text/javascript" src="AJAX.js"></script></script>
</head>
<body>
<input type="text" name="test" id = "test" onkeyup = "update();"/>
<div id = "content">a</div>
<div id = "wait">b</div>
<script type="text/javascript">
a = new AJAX("AJAX.php", "GET", true, document.getElementById("content"), document.getElementById("wait"));
function update()
{
a.reset();
a.addParameter("value", document.getElementById("test").value);
a.loadResponse();
}
</script>
</body>
</html> |
