1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
| var Comet = Class.create();
Comet.prototype = {
timestamp: 0,
url: './backend.php',
noerror: true,
initialize: function(){
},
connect: function(){
this.ajax = new Ajax.Request(this.url, {
method: 'get',
parameters: {
'timestamp': this.timestamp
},
onSuccess: function(transport){
var response = transport.responseText.evalJSON();
this.comet.timestamp = response['timestamp'];
this.comet.handleResponse(response);
this.comet.noerror = true;
},
onComplete: function(transport){
if (!this.comet.noerror) setTimeout(function(){
comet.connect()
}, 5000);
else
this.comet.connect();
this.comet.noerror = false;
}
});
this.ajax.comet = this;
},
handleResponse: function(response){
$('content').innerHTML += '<div>' + response['msg'] + '</div>';
},
doRequest: function(request){
new Ajax.Request(this.url, {
method: 'get',
parameters: {
'msg': request
}
});
}
}
var comet = new Comet();
comet.connect();
|