Subversion Repositories eFlore/Archives.eflore-xul

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13 jpm 1 
/*
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Fonction de recuperation d'infos sur le server
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PENSER A METTRE :
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connectionType = "direct";
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timeOut = 120;
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DANS LA FONCTION APPELANT connection !!!
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*/
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/* Use XMLHttpRequest to make a connection*/
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function connection( qString )
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{
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    /*Create the Object*/
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    try {
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        var req = new XMLHttpRequest();
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        req.overrideMimeType("text/xml");
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    }
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    catch (e){
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        alert('Erreur lors de la création de la connection!');
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        return;
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    }
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    try {
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        //Set Permission only in case of direct connection
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        if(connectionType == "direct") {
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            netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
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        }
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        req.open("GET",qString,true);
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        req.send(null);
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    }
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    catch (e) {
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        alert('An error has occured: '+e);
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        return;
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    }
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    //TimeOut
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    var iter = timeOut;
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    var loaded = false;
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    var checkLoad = function () {
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        if(loaded) {
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            clearInterval(intervalID);
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        } else if(iter == 0) {
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            reqAbort();
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            alert('Connection has timed out. Aborted after '+ timeOut + ' seconds');
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        } else {
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            iter--;
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        }
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    };
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    var intervalID =  setInterval(checkLoad,1000);
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    function stopConnection(e)
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    {
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        if (e.keyCode == 27 && req) {
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            reqAbort();
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        }
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    }
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    function reqAbort()
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    {
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        if(req) req.abort();
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        clearInterval(intervalID);
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    }
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    req.onload = function()
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    {
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        switch(req.readyState) {
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            case 1,2,3:
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            break;
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            case 4:
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                loaded = true;
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                if(req.status !=200) {
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                    alert('The server respond with a bad status code: '+req.status);
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                } else {
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                    //Work around for Moz 1.3
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                    parseCallback( req.responseText );
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                }
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            break;
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        };
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    }
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}