diff options
| author | wei <> | 2006-04-30 00:15:23 +0000 |
|---|---|---|
| committer | wei <> | 2006-04-30 00:15:23 +0000 |
| commit | 10b65d6d03ee0afc1ec1a50f320af42a79f5492b (patch) | |
| tree | d6b8167e0d224f21db6a16da251ba4d069468543 /framework/Web/Javascripts/prado/ajax3.js | |
| parent | 2cc93773feb5e76d2dd002b1dcd463a01d606794 (diff) | |
Adding Callback foundations.
Diffstat (limited to 'framework/Web/Javascripts/prado/ajax3.js')
| -rw-r--r-- | framework/Web/Javascripts/prado/ajax3.js | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/framework/Web/Javascripts/prado/ajax3.js b/framework/Web/Javascripts/prado/ajax3.js new file mode 100644 index 00000000..ded63104 --- /dev/null +++ b/framework/Web/Javascripts/prado/ajax3.js @@ -0,0 +1,181 @@ +/**
+ * Prado Callback client-side request handler.
+ */
+Prado.Callback = Class.create();
+
+/**
+ * Static definitions.
+ */
+Object.extend(Prado.Callback,
+{
+ /**
+ * Callback request target POST field name.
+ */
+ FIELD_CALLBACK_TARGET : 'PRADO_CALLBACK_TARGET',
+
+ /**
+ * Callback request parameter POST field name.
+ */
+ FIELD_CALLBACK_PARAMETER : 'PRADO_CALLBACK_PARAMETER',
+
+ /**
+ * List of form fields that will be collected during callback.
+ */
+ PostDataLoaders : ['PRADO_PAGESTATE'],
+
+ /**
+ * Respond to Prado Callback request exceptions.
+ */
+ Exception :
+ {
+ /**
+ * Server returns 505 exception. Just log it.
+ */
+ "on505" : function(request, transport, data)
+ {
+ var msg = 'HTTP '+transport.status+" with response";
+ Logger.error(msg, transport.responseText);
+ this.logException(data);
+ },
+
+ /**
+ * Callback OnComplete event,logs reponse and data to console.
+ */
+ onComplete : function(request, transport, data)
+ {
+ if(transport.status != 505)
+ {
+ var msg = 'HTTP '+transport.status+" with response : \n";
+ msg += transport.responseText + "\n";
+ msg += "Data : \n"+inspect(data);
+ Logger.warn(msg);
+ }
+ },
+
+ /**
+ * Formats the exception message for display in console.
+ */
+ formatException : function(e)
+ {
+ var msg = e.type + " with message \""+e.message+"\"";
+ msg += " in "+e.file+"("+e.line+")\n";
+ msg += "Stack trace:\n";
+ var trace = e.trace;
+ for(var i = 0; i<trace.length; i++)
+ {
+ msg += " #"+i+" "+trace[i].file;
+ msg += "("+trace[i].line+"): ";
+ msg += trace[i]["class"]+"->"+trace[i]["function"]+"()"+"\n";
+ }
+ return msg;
+ },
+
+ /**
+ * Log Callback response exceptions to console.
+ */
+ logException : function(e)
+ {
+ Logger.error("Callback Request Error "+e.code, this.formatException(e));
+ }
+ },
+
+ /**
+ * @return string JSON encoded data.
+ */
+ encode : function(data)
+ {
+ Prado.JSON.stringify(data);
+ },
+
+ /**
+ * @return mixed javascript data decoded from string using JSON decoding.
+ */
+ decode : function(data)
+ {
+ return Prado.JSON.parse(data);
+ }
+})
+
+//Add HTTP exception respones when logger is enabled.
+Event.OnLoad(function()
+{
+ if(typeof Logger != "undefined")
+ Ajax.Responders.register(Prado.Callback.Exception);
+});
+
+/**
+ * Create and prepare a new callback request.
+ */
+Prado.Callback.prototype =
+{
+ /**
+ * Callback URL, same url as the current page.
+ */
+ url : window.location.href,
+
+ /**
+ * Callback options, including onXXX events.
+ */
+ options : {},
+
+ /**
+ * Callback target ID. E.g. $control->getUniqueID();
+ */
+ id : null,
+
+ /**
+ * Callback parameters.
+ */
+ parameters : null,
+
+ /**
+ * Prepare and inititate a callback request.
+ */
+ initialize : function(id, parameters, onSuccess, options)
+ {
+ this.options = options || {};
+ this.id = id;
+ this.parameters = parameters;
+
+ var request =
+ {
+ postBody : this._getPostData(),
+ onSuccess : this._onSuccess.bind(this)
+ }
+ Object.extend(this.options || {},request);
+
+ new Ajax.Request(this.url, this.options);
+ },
+
+ /**
+ * Collects the form inputs, encode the parameters, and sets the callback
+ * target id. The resulting string is the request content body.
+ * @return string request body content containing post data.
+ */
+ _getPostData : function()
+ {
+ var data = {};
+
+ Prado.Callback.PostDataLoaders.each(function(name)
+ {
+ $A(document.getElementsByName(name)).each(function(element)
+ {
+ var value = $F(element);
+ if(typeof(value) != "undefined")
+ data[name] = value;
+ })
+ })
+ if(typeof(this.parameters) != "undefined")
+ data[Prado.Callback.FIELD_CALLBACK_PARAMETER] = Prado.Callback.encode(this.parameters);
+ data[Prado.Callback.FIELD_CALLBACK_TARGET] = this.id;
+ return $H(data).toQueryString();
+ },
+
+ /**
+ * Dispatch a successfull response to the appropriate responders.
+ */
+ _onSuccess : function(response, transport, json)
+ {
+ //Logger.info("asd");
+ }
+}
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