Subversion Repositories eFlore/Archives.eflore-xul

Rev

Go to most recent revision | Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
13 jpm 1 
/*
2 
Fonction de recuperation d'infos sur le server
3 
 
4 
PENSER A METTRE :
5 
connectionType = "direct";
6 
timeOut = 120;
7 
DANS LA FONCTION APPELANT connection !!!
8 
*/
9 
 
10 
/* Use XMLHttpRequest to make a connection*/
11 
function connection( qString ) {
12 
    /*Create the Object*/
13 
    try {
14 
        var req = new XMLHttpRequest();
15 
        req.overrideMimeType("text/xml");
16 
    }catch (e){
17 
        alert('Error creating the connection!');
18 
        return;
19 
    }
20 
 
21 
    try {
22 
        //Set Permission only in case of direct connection
23 
        if(connectionType == "direct") {
24 
            netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
25 
    }
26 
 
27 
    req.open("GET",qString,true);
28 
    req.send(null);
29 
 
30 
    } catch (e) {
31 
        alert('An error has occured: '+e);
32 
        return;
33 
    }
34 
 
35 
    //TimeOut
36 
    var iter = timeOut;
37 
    var loaded = false;
38 
 
39 
    var checkLoad = function () {
40 
        if(loaded) {
41 
            clearInterval(intervalID);
42 
        } else if(iter == 0) {
43 
            reqAbort();
44 
            alert('Connection has timed out. Aborted after '+ timeOut + ' seconds');
45 
        } else {
46 
            iter--;
47 
        }
48 
    };
49 
 
50 
    var intervalID =  setInterval(checkLoad,1000);
51 
 
52 
    function stopConnection(e) {
53 
        if(e.keyCode == 27 && req) {
54 
            reqAbort();
55 
        }
56 
    }
57 
 
58 
    function reqAbort() {
59 
        if(req) req.abort();
60 
        clearInterval(intervalID);
61 
    }
62 
 
63 
    req.onload = function() {
64 
        switch(req.readyState) {
65 
            case 1,2,3:
66 
            break;
67 
            case 4:
68 
                loaded = true;
69 
                if(req.status !=200) {
70 
                    alert('The server respond with a bad status code: '+req.status);
71 
                } else {
72 
                    //Work around for Moz 1.3
73 
					parseCallback( req.responseText );
74 
                }
75 
            break;
76 
        };
77 
    }
78 
}