diff options
Diffstat (limited to 'framework/Web/Javascripts/prado/ajax3.js')
| -rw-r--r-- | framework/Web/Javascripts/prado/ajax3.js | 84 |
1 files changed, 75 insertions, 9 deletions
diff --git a/framework/Web/Javascripts/prado/ajax3.js b/framework/Web/Javascripts/prado/ajax3.js index 63add490..8ea76e10 100644 --- a/framework/Web/Javascripts/prado/ajax3.js +++ b/framework/Web/Javascripts/prado/ajax3.js @@ -103,6 +103,14 @@ Object.extend(Prado.CallbackRequest, * Response errors/exceptions header name.
*/
ERROR_HEADER : 'X-PRADO-ERROR',
+ /**
+ * Callback request queque.
+ */
+ Queque : [],
+ /**
+ * Requests In progress.
+ */
+ InProgress : [],
/**
* Dispatch callback response actions.
@@ -140,9 +148,9 @@ Object.extend(Prado.CallbackRequest, Exception :
{
/**
- * Server returns 505 exception. Just log it.
+ * Server returns 500 exception. Just log it.
*/
- "on505" : function(request, transport, data)
+ "on500" : function(request, transport, data)
{
var e = request.getHeaderData(Prado.CallbackRequest.ERROR_HEADER);
Logger.error("Callback Server Error "+e.code, this.formatException(e));
@@ -163,7 +171,6 @@ Object.extend(Prado.CallbackRequest, {
msg += inspect(action)+"\n";
})
-
Logger.warn(msg);
}
},
@@ -209,10 +216,61 @@ Object.extend(Prado.CallbackRequest, */
decode : function(data)
{
- return Prado.JSON.parse(data);
+ if(typeof(data) == "string" && data.trim().length > 0)
+ return Prado.JSON.parse(data);
+ else
+ return null;
+ },
+
+ /**
+ * Dispatch quequed requests, and set a timeout.
+ */
+ dispatchQuequedRequest : function()
+ {
+ requests = Prado.CallbackRequest;
+ if(requests.InProgress.length == 0 && requests.Queque.length > 0)
+ {
+ var item = requests.Queque.pop();
+ item.callback = new Ajax.Request(item.url, item.options);
+ item.callback.callbackID = item.id;
+ item.timeout = setTimeout(function()
+ {
+ requests.removeInProgress(item.callback);
+ }, item.options.TimeOut);
+ requests.InProgress.push(item);
+ }
+ },
+
+ /**
+ * Remove a request currently in progress and call dispatchQuequedRequest.
+ */
+ removeInProgress : function(request)
+ {
+ if(request && request.callbackID)
+ {
+ var stillInProgress = [];
+ requests = Prado.CallbackRequest;
+ requests.InProgress.each(function(item)
+ {
+ if(item.callback.callbackID == request.callbackID)
+ {
+ item.callback.transport.abort();
+ request.transport.abort();
+ clearTimeout(item.timeout);
+ }
+ else
+ {
+ stillInProgress.push(item);
+ }
+ })
+ requests.InProgress = stillInProgress;
+ }
+ requests.dispatchQuequedRequest();
}
})
+Ajax.Responders.register({onComplete : Prado.CallbackRequest.removeInProgress});
+
//Add HTTP exception respones when logger is enabled.
Event.OnLoad(function()
{
@@ -233,7 +291,10 @@ Prado.CallbackRequest.prototype = /**
* Callback options, including onXXX events.
*/
- options : {},
+ options :
+ {
+ TimeOut : 30000 // 30 second timeout.
+ },
/**
* Callback target ID. E.g. $control->getUniqueID();
@@ -243,14 +304,15 @@ Prado.CallbackRequest.prototype = /**
* Current callback request.
*/
- request : null,
+ callback : null,
/**
* Prepare and inititate a callback request.
*/
initialize : function(id, options)
{
- this.options = options || {};
+ Object.extend(this.options, options || {});
+
this.id = id;
var request =
@@ -258,14 +320,18 @@ Prado.CallbackRequest.prototype = postBody : this._getPostData(),
parameters : ''
}
- Object.extend(this.options || {},request);
+
+ Object.extend(this.options, request);
+
if(this.options.CausesValidation != false && typeof(Prado.Validation) != "undefined")
{
var form = this.options.Form || Prado.Validation.getForm();
if(Prado.Validation.validate(form,this.options.ValidationGroup,this) == false)
return;
}
- this.request = new Ajax.Request(this.url, this.options);
+
+ Prado.CallbackRequest.Queque.push(this);
+ Prado.CallbackRequest.dispatchQuequedRequest();
},
/**
|