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-rw-r--r--framework/Web/Javascripts/source/prado/activecontrols/ajax3.js2288
1 files changed, 1144 insertions, 1144 deletions
diff --git a/framework/Web/Javascripts/source/prado/activecontrols/ajax3.js b/framework/Web/Javascripts/source/prado/activecontrols/ajax3.js
index 995e8e97..55ef64cb 100644
--- a/framework/Web/Javascripts/source/prado/activecontrols/ajax3.js
+++ b/framework/Web/Javascripts/source/prado/activecontrols/ajax3.js
@@ -1,1144 +1,1144 @@
-
-Prado.AjaxRequest = Class.create();
-Prado.AjaxRequest.prototype = Object.clone(Ajax.Request.prototype);
-
-/**
- * Override Prototype's response implementation.
- */
-Object.extend(Prado.AjaxRequest.prototype,
-{
- /*initialize: function(request)
- {
- this.CallbackRequest = request;
- this.transport = Ajax.getTransport();
- this.setOptions(request.options);
- this.request(request.url);
- },*/
-
- /**
- * Customize the response, dispatch onXXX response code events, and
- * tries to execute response actions (javascript statements).
- */
- respondToReadyState : function(readyState)
- {
- var event = Ajax.Request.Events[readyState];
- var transport = this.transport, json = this.getBodyDataPart(Prado.CallbackRequest.DATA_HEADER);
-
- if (event == 'Complete')
- {
- var redirectUrl = this.getBodyContentPart(Prado.CallbackRequest.REDIRECT_HEADER);
- if (redirectUrl)
- document.location.href = redirectUrl;
-
- if ((this.getHeader('Content-type') || '').match(/^text\/javascript/i))
- {
- try
- {
- json = eval('(' + transport.responseText + ')');
- }
- catch (e)
- {
- if(typeof(json) == "string")
- json = Prado.CallbackRequest.decode(result);
- }
- }
-
- try
- {
- Prado.CallbackRequest.updatePageState(this,transport);
- Prado.CallbackRequest.checkHiddenFields(this,transport);
- var obj = this;
- Prado.CallbackRequest.loadAssets(this,transport, function()
-
- {
- try
- {
- Ajax.Responders.dispatch('on' + transport.status, obj, transport, json);
- Prado.CallbackRequest.dispatchActions(transport,obj.getBodyDataPart(Prado.CallbackRequest.ACTION_HEADER));
-
- (
- obj.options['on' + obj.transport.status]
- ||
- obj.options['on' + (obj.success() ? 'Success' : 'Failure')]
- ||
- Prototype.emptyFunction
- ) (obj, json);
- }
- catch (e)
- {
- obj.dispatchException(e);
- }
- }
- );
- }
- catch (e)
- {
- this.dispatchException(e);
- }
- }
-
- try {
- (this.options['on' + event] || Prototype.emptyFunction)(this, json);
- Ajax.Responders.dispatch('on' + event, this, transport, json);
- } catch (e) {
- this.dispatchException(e);
- }
-
- /* Avoid memory leak in MSIE: clean up the oncomplete event handler */
- if (event == 'Complete')
- this.transport.onreadystatechange = Prototype.emptyFunction;
- },
-
- /**
- * Gets header data assuming JSON encoding.
- * @param string header name
- * @return object header data as javascript structures.
- */
- getHeaderData : function(name)
- {
- return this.getJsonData(this.getHeader(name));
- },
-
- getBodyContentPart : function(name)
- {
- if(typeof(this.transport.responseText)=="string")
- return Prado.Element.extractContent(this.transport.responseText, name);
- },
-
- getJsonData : function(json)
- {
- try
- {
- return eval('(' + json + ')');
- }
- catch (e)
- {
- if(typeof(json) == "string")
- return Prado.CallbackRequest.decode(json);
- }
- },
-
- getBodyDataPart : function(name)
- {
- return this.getJsonData(this.getBodyContentPart(name));
- }
-});
-
-/**
- * Prado Callback client-side request handler.
- */
-Prado.CallbackRequest = Class.create();
-
-/**
- * Static definitions.
- */
-Object.extend(Prado.CallbackRequest,
-{
- /**
- * Callback request target POST field name.
- */
- FIELD_CALLBACK_TARGET : 'PRADO_CALLBACK_TARGET',
- /**
- * Callback request parameter POST field name.
- */
- FIELD_CALLBACK_PARAMETER : 'PRADO_CALLBACK_PARAMETER',
- /**
- * Callback request page state field name,
- */
- FIELD_CALLBACK_PAGESTATE : 'PRADO_PAGESTATE',
-
- FIELD_POSTBACK_TARGET : 'PRADO_POSTBACK_TARGET',
-
- FIELD_POSTBACK_PARAMETER : 'PRADO_POSTBACK_PARAMETER',
-
- /**
- * List of form fields that will be collected during callback.
- */
- PostDataLoaders : [],
- /**
- * Response data header name.
- */
- DATA_HEADER : 'X-PRADO-DATA',
- /**
- * Response javascript execution statement header name.
- */
- ACTION_HEADER : 'X-PRADO-ACTIONS',
- /**
- * Response errors/exceptions header name.
- */
- ERROR_HEADER : 'X-PRADO-ERROR',
- /**
- * Page state header name.
- */
- PAGESTATE_HEADER : 'X-PRADO-PAGESTATE',
- /**
- * Script list header name.
- */
- SCRIPTLIST_HEADER : 'X-PRADO-SCRIPTLIST',
- /**
- * Stylesheet list header name.
- */
- STYLESHEETLIST_HEADER : 'X-PRADO-STYLESHEETLIST',
- /**
- * Hidden field list header name.
- */
- HIDDENFIELDLIST_HEADER : 'X-PRADO-HIDDENFIELDLIST',
-
- REDIRECT_HEADER : 'X-PRADO-REDIRECT',
-
- requestQueue : [],
-
- //all request objects
- requests : {},
-
- getRequestById : function(id)
- {
- var requests = Prado.CallbackRequest.requests;
- if(typeof(requests[id]) != "undefined")
- return requests[id];
- },
-
- dispatch : function(id)
- {
- var requests = Prado.CallbackRequest.requests;
- if(typeof(requests[id]) != "undefined")
- requests[id].dispatch();
- },
-
- /**
- * Add ids of inputs element to post in the request.
- */
- addPostLoaders : function(ids)
- {
- var self = Prado.CallbackRequest;
- self.PostDataLoaders = self.PostDataLoaders.concat(ids);
- var list = [];
- self.PostDataLoaders.each(function(id)
- {
- if(list.indexOf(id) < 0)
- list.push(id);
- });
- self.PostDataLoaders = list;
- },
-
- /**
- * Dispatch callback response actions.
- */
- dispatchActions : function(transport,actions)
- {
- var self = Prado.CallbackRequest;
- if(actions && actions.length > 0)
- actions.each(self.__run.bind(self,transport));
- },
-
- /**
- * Prase and evaluate a Callback clien-side action
- */
- __run : function(transport, command)
- {
- var self = Prado.CallbackRequest;
- self.transport = transport;
- for(var method in command)
- {
- try
- {
- method.toFunction().apply(self,command[method]);
- }
- catch(e)
- {
- if(typeof(Logger) != "undefined")
- self.Exception.onException(null,e);
- else
- debugger;
- }
- }
- },
-
- /**
- * Respond to Prado Callback request exceptions.
- */
- Exception :
- {
- /**
- * Server returns 500 exception. Just log it.
- */
- "on500" : function(request, transport, data)
- {
- var e = request.getHeaderData(Prado.CallbackRequest.ERROR_HEADER);
- if (e)
- Logger.error("Callback Server Error "+e.code, this.formatException(e));
- else
- Logger.error("Callback Server Error Unknown",'');
- },
-
- /**
- * Callback OnComplete event,logs reponse and data to console.
- */
- 'on200' : function(request, transport, data)
- {
- if(transport.status < 500)
- {
- var msg = 'HTTP '+transport.status+" with response : \n";
- if(transport.responseText.trim().length >0)
- {
- var f = RegExp('(<!--X-PRADO[^>]+-->)([\\s\\S\\w\\W]*)(<!--//X-PRADO[^>]+-->)',"m");
- msg += transport.responseText.replace(f,'') + "\n";
- }
- if(typeof(data)!="undefined" && data != null)
- msg += "Data : \n"+inspect(data)+"\n";
- data = request.getBodyDataPart(Prado.CallbackRequest.ACTION_HEADER);
- if(data && data.length > 0)
- {
- msg += "Actions : \n";
- data.each(function(action)
- {
- msg += inspect(action)+"\n";
- });
- }
- Logger.info(msg);
- }
- },
-
- /**
- * Uncaught exceptions during callback response.
- */
- onException : function(request,e)
- {
- var msg = "";
- $H(e).each(function(item)
- {
- msg += item.key+": "+item.value+"\n";
- })
- Logger.error('Uncaught Callback Client Exception:', 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";
- }
- msg += e.version+" "+e.time+"\n";
- return msg;
- }
- },
-
- /**
- * @return string JSON encoded data.
- */
- encode : function(data)
- {
- return Prado.JSON.stringify(data);
- },
-
- /**
- * @return mixed javascript data decoded from string using JSON decoding.
- */
- decode : function(data)
- {
- if(typeof(data) == "string" && data.trim().length > 0)
- return Prado.JSON.parse(data);
- else
- return null;
- },
-
- /**
- * Dispatch a normal request, no timeouts or aborting of requests.
- */
- dispatchNormalRequest : function(callback)
- {
- callback.options.postBody = callback._getPostData(),
- callback.request(callback.url);
- return true;
- },
-
- /**
- * Abort the current priority request in progress.
- */
- tryNextRequest : function()
- {
- var self = Prado.CallbackRequest;
- //Logger.debug('trying next request');
- if(typeof(self.currentRequest) == 'undefined' || self.currentRequest==null)
- {
- if(self.requestQueue.length > 0)
- return self.dispatchQueue();
- //else
- //Logger.warn('empty queque');
- }
- //else
- //Logger.warn('current request ' + self.currentRequest.id);
- },
-
- /*
- * Checks which scripts are used by the response and ensures they're loaded
- */
- loadScripts : function(request, transport, callback)
- {
- var self = Prado.CallbackRequest;
- var data = request.getBodyContentPart(self.SCRIPTLIST_HEADER);
- if (!this.ScriptsToLoad) this.ScriptsToLoad = new Array();
- this.ScriptLoadFinishedCallback = callback;
- if (typeof(data) == "string" && data.length > 0)
- {
- json = Prado.CallbackRequest.decode(data);
- if(typeof(json) != "object")
- Logger.warn("Invalid script list:"+data);
- else
- for(var key in json)
- if (/^\d+$/.test(key))
- {
- var url = json[key];
- if (!Prado.ScriptManager.isAssetLoaded(url))
- this.ScriptsToLoad.push(url);
- }
- }
- this.loadNextScript();
- },
-
- loadNextScript: function()
- {
- var done = (!this.ScriptsToLoad || (this.ScriptsToLoad.length==0));
- if (!done)
- {
- var url = this.ScriptsToLoad.shift(); var obj = this;
- if (
- Prado.ScriptManager.ensureAssetIsLoaded(url,
- function() {
- obj.loadNextScript();
- }
- )
- )
- this.loadNextScript();
- }
- else
- {
- if (this.ScriptLoadFinishedCallback)
- {
- var cb = this.ScriptLoadFinishedCallback;
- this.ScriptLoadFinishedCallback = null;
- cb();
- }
- }
- },
-
- loadStyleSheetsAsync : function(request, transport)
- {
- var self = Prado.CallbackRequest;
- var data = request.getBodyContentPart(self.STYLESHEETLIST_HEADER);
- if (typeof(data) == "string" && data.length > 0)
- {
- json = Prado.CallbackRequest.decode(data);
- if(typeof(json) != "object")
- Logger.warn("Invalid stylesheet list:"+data);
- else
- for(var key in json)
- if (/^\d+$/.test(key))
- Prado.StyleSheetManager.ensureAssetIsLoaded(json[key],null);
- }
- },
-
- loadStyleSheets : function(request, transport, callback)
- {
- var self = Prado.CallbackRequest;
- var data = request.getBodyContentPart(self.STYLESHEETLIST_HEADER);
- if (!this.StyleSheetsToLoad) this.StyleSheetsToLoad = new Array();
- this.StyleSheetLoadFinishedCallback = callback;
- if (typeof(data) == "string" && data.length > 0)
- {
- json = Prado.CallbackRequest.decode(data);
- if(typeof(json) != "object")
- Logger.warn("Invalid stylesheet list:"+data);
- else
- for(var key in json)
- if (/^\d+$/.test(key))
- {
- var url = json[key];
- if (!Prado.StyleSheetManager.isAssetLoaded(url))
- this.StyleSheetsToLoad.push(url);
- }
- }
- this.loadNextStyleSheet();
- },
-
- loadNextStyleSheet: function()
- {
- var done = (!this.StyleSheetsToLoad || (this.StyleSheetsToLoad.length==0));
- if (!done)
- {
- var url = this.StyleSheetsToLoad.shift(); var obj = this;
- if (
- Prado.StyleSheetManager.ensureAssetIsLoaded(url,
- function() {
- obj.loadNextStyleSheet();
- }
- )
- )
- this.loadNextStyleSheet();
- }
- else
- {
- if (this.StyleSheetLoadFinishedCallback)
- {
- var cb = this.StyleSheetLoadFinishedCallback;
- this.StyleSheetLoadFinishedCallback = null;
- cb();
- }
- }
- },
-
- /*
- * Checks which assets are used by the response and ensures they're loaded
- */
- loadAssets : function(request, transport, callback)
- {
- /*
-
- ! This is the callback-based loader for stylesheets, which loads them one-by-one, and
- ! waits for all of them to be loaded before loading scripts and processing the rest of
- ! the callback.
- !
- ! That however is not neccessary, as stylesheets can be loaded asynchronously too.
- !
- ! I leave this code here for the case that this turns out to be a compatibility issue
- ! (for ex. I can imagine some scripts trying to access stylesheet properties and such)
- ! so if need can be reactivated. If you do so, comment out the async stylesheet loader below!
-
- var obj = this;
- this.loadStyleSheets(request,transport, function() {
- obj.loadScripts(request,transport,callback);
- });
-
- */
-
- this.loadStyleSheetsAsync(request,transport);
-
- this.loadScripts(request,transport,callback);
- },
-
- checkHiddenField: function(name, value)
- {
- var id = name.replace(':','_');
- if (!document.getElementById(id))
- {
- var field = document.createElement('input');
- field.setAttribute('type','hidden');
- field.id = id;
- field.name = name;
- field.value = value;
- document.body.appendChild(field);
- }
- },
-
- checkHiddenFields : function(request, transport)
- {
- var self = Prado.CallbackRequest;
- var data = request.getBodyContentPart(self.HIDDENFIELDLIST_HEADER);
- if (typeof(data) == "string" && data.length > 0)
- {
- json = Prado.CallbackRequest.decode(data);
- if(typeof(json) != "object")
- Logger.warn("Invalid hidden field list:"+data);
- else
- for(var key in json)
- this.checkHiddenField(key,json[key]);
- }
- },
-
- /**
- * Updates the page state. It will update only if EnablePageStateUpdate and
- * HasPriority options are both true.
- */
- updatePageState : function(request, transport)
- {
- var self = Prado.CallbackRequest;
- var pagestate = $(self.FIELD_CALLBACK_PAGESTATE);
- var enabled = request.ActiveControl.EnablePageStateUpdate && request.ActiveControl.HasPriority;
- var aborted = typeof(self.currentRequest) == 'undefined' || self.currentRequest == null;
- if(enabled && !aborted && pagestate)
- {
- var data = request.getBodyContentPart(self.PAGESTATE_HEADER);
- if(typeof(data) == "string" && data.length > 0)
- pagestate.value = data;
- else
- {
- if(typeof(Logger) != "undefined")
- Logger.warn("Missing page state:"+data);
- //Logger.warn('## bad state: setting current request to null');
- self.endCurrentRequest();
- //self.tryNextRequest();
- return false;
- }
- }
- self.endCurrentRequest();
- //Logger.warn('## state updated: setting current request to null');
- //self.tryNextRequest();
- return true;
- },
-
- enqueue : function(callback)
- {
- var self = Prado.CallbackRequest;
- self.requestQueue.push(callback);
- //Logger.warn("equeued "+callback.id+", current queque length="+self.requestQueue.length);
- self.tryNextRequest();
- },
-
- dispatchQueue : function()
- {
- var self = Prado.CallbackRequest;
- //Logger.warn("dispatching queque, length="+self.requestQueue.length+" request="+self.currentRequest);
- var callback = self.requestQueue.shift();
- self.currentRequest = callback;
-
- //get data
- callback.options.postBody = callback._getPostData(),
-
- //callback.request = new Prado.AjaxRequest(callback);
- callback.timeout = setTimeout(function()
- {
- //Logger.warn("priority timeout");
- self.abortRequest(callback.id);
- },callback.ActiveControl.RequestTimeOut);
- callback.request(callback.url);
- //Logger.debug("dispatched "+self.currentRequest.id + " ...")
- },
-
- endCurrentRequest : function()
- {
- var self = Prado.CallbackRequest;
- if(typeof(self.currentRequest) != 'undefined' && self.currentRequest != null)
- clearTimeout(self.currentRequest.timeout);
- self.currentRequest=null;
- },
-
- abortRequest : function(id)
- {
- //Logger.warn("abort id="+id);
- var self = Prado.CallbackRequest;
- if(typeof(self.currentRequest) != 'undefined'
- && self.currentRequest != null && self.currentRequest.id == id)
- {
- var request = self.currentRequest;
- if(request.transport.readyState < 4)
- request.transport.abort();
- //Logger.warn('## aborted: setting current request to null');
- self.endCurrentRequest();
- }
- self.tryNextRequest();
- }
-});
-
-/**
- * Automatically aborts the current request when a priority request has returned.
- */
-Ajax.Responders.register({onComplete : function(request)
-{
- if(request && request instanceof Prado.AjaxRequest)
- {
- if(request.ActiveControl.HasPriority)
- Prado.CallbackRequest.tryNextRequest();
- }
-}});
-
-//Add HTTP exception respones when logger is enabled.
-Event.OnLoad(function()
-{
- if(typeof Logger != "undefined")
- Ajax.Responders.register(Prado.CallbackRequest.Exception);
-});
-
-/**
- * Create and prepare a new callback request.
- * Call the dispatch() method to start the callback request.
- * <code>
- * request = new Prado.CallbackRequest(UniqueID, callback);
- * request.dispatch();
- * </code>
- */
-Prado.CallbackRequest.prototype = Object.extend(Prado.AjaxRequest.prototype,
-{
-
- /**
- * Prepare and inititate a callback request.
- */
- initialize : function(id, options)
- {
- /**
- * Callback URL, same url as the current page.
- */
- this.url = this.getCallbackUrl();
-
- this.transport = Ajax.getTransport();
- this.Enabled = true;
- this.id = id;
- this.randomId = this.randomString();
-
- if(typeof(id)=="string"){
- Prado.CallbackRequest.requests[id+"__"+this.randomId] = this;
- }
-
- this.setOptions(Object.extend(
- {
- RequestTimeOut : 30000, // 30 second timeout.
- EnablePageStateUpdate : true,
- HasPriority : true,
- CausesValidation : true,
- ValidationGroup : null,
- PostInputs : true
- }, options || {}));
-
- this.ActiveControl = this.options;
- Prado.CallbackRequest.requests[id+"__"+this.randomId].ActiveControl = this.options;
- },
-
- /**
- * Sets the request options
- * @return {Array} request options.
- */
- setOptions: function(options){
-
- this.options = {
- method: 'post',
- asynchronous: true,
- contentType: 'application/x-www-form-urlencoded',
- encoding: 'UTF-8',
- parameters: '',
- evalJSON: true,
- evalJS: true
- };
-
- Object.extend(this.options, options || { });
-
- this.options.method = this.options.method.toLowerCase();
- if(Object.isString(this.options.parameters)){
- this.options.parameters = this.options.parameters.toQueryParams();
- }
- },
-
- /**
- * Gets the url from the forms that contains the PRADO_PAGESTATE
- * @return {String} callback url.
- */
- getCallbackUrl : function()
- {
- return $('PRADO_PAGESTATE').form.action;
- },
-
- /**
- * Sets the request parameter
- * @param {Object} parameter value
- */
- setCallbackParameter : function(value)
- {
- var requestId = this.id+"__"+this.randomId;
- this.ActiveControl['CallbackParameter'] = value;
- Prado.CallbackRequest.requests[requestId].ActiveControl['CallbackParameter'] = value;
- },
-
- /**
- * @return {Object} request paramater value.
- */
- getCallbackParameter : function()
- {
- return Prado.CallbackRequest.requests[this.id+"__"+this.randomId].ActiveControl['CallbackParameter'];
- },
-
- /**
- * Sets the callback request timeout.
- * @param {integer} timeout in milliseconds
- */
- setRequestTimeOut : function(timeout)
- {
- this.ActiveControl['RequestTimeOut'] = timeout;
- },
-
- /**
- * @return {integer} request timeout in milliseconds
- */
- getRequestTimeOut : function()
- {
- return this.ActiveControl['RequestTimeOut'];
- },
-
- /**
- * Set true to enable validation on callback dispatch.
- * @param {boolean} true to validate
- */
- setCausesValidation : function(validate)
- {
- this.ActiveControl['CausesValidation'] = validate;
- },
-
- /**
- * @return {boolean} validate on request dispatch
- */
- getCausesValidation : function()
- {
- return this.ActiveControl['CausesValidation'];
- },
-
- /**
- * Sets the validation group to validate during request dispatch.
- * @param {string} validation group name
- */
- setValidationGroup : function(group)
- {
- this.ActiveControl['ValidationGroup'] = group;
- },
-
- /**
- * @return {string} validation group name.
- */
- getValidationGroup : function()
- {
- return this.ActiveControl['ValidationGroup'];
- },
-
- /**
- * Dispatch the callback request.
- */
- dispatch : function()
- {
- //Logger.info("dispatching request");
- //trigger tinyMCE to save data.
- if(typeof tinyMCE != "undefined")
- tinyMCE.triggerSave();
-
- if(this.ActiveControl.CausesValidation && typeof(Prado.Validation) != "undefined")
- {
- var form = this.ActiveControl.Form || Prado.Validation.getForm();
- if(Prado.Validation.validate(form,this.ActiveControl.ValidationGroup,this) == false)
- return false;
- }
-
- if(this.ActiveControl.onPreDispatch)
- this.ActiveControl.onPreDispatch(this,null);
-
- if(!this.Enabled)
- return;
-
- // Opera don't have onLoading/onLoaded state, so, simulate them just
- // before sending the request.
- if (Prototype.Browser.Opera)
- {
- if (this.ActiveControl.onLoading)
- {
- this.ActiveControl.onLoading(this,null);
- Ajax.Responders.dispatch('onLoading',this, this.transport,null);
- }
- if (this.ActiveControl.onLoaded)
- {
- this.ActiveControl.onLoaded(this,null);
- Ajax.Responders.dispatch('onLoaded',this, this.transport,null);
- }
- }
-
- var result;
- if(this.ActiveControl.HasPriority)
- {
- return Prado.CallbackRequest.enqueue(this);
- //return Prado.CallbackRequest.dispatchPriorityRequest(this);
- }
- else
- return Prado.CallbackRequest.dispatchNormalRequest(this);
- },
-
- abort : function()
- {
- return Prado.CallbackRequest.abortRequest(this.id);
- },
-
- /**
- * 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 = {};
- var callback = Prado.CallbackRequest;
- if(this.ActiveControl.PostInputs != false)
- {
- callback.PostDataLoaders.each(function(name)
- {
- var elements=$A(document.getElementsByName(name));
- if(elements.size() == 0)
- {
- name += '[]';
- elements=$A(document.getElementsByName(name));
- }
- elements.each(function(element)
- {
- //IE will try to get elements with ID == name as well.
- if(element.type && element.name == name)
- {
- var value = $F(element);
- if(typeof(value) != "undefined" && value != null)
- data[name] = value;
- }
- })
- })
- }
- if(typeof(this.ActiveControl.CallbackParameter) != "undefined")
- data[callback.FIELD_CALLBACK_PARAMETER] = callback.encode(this.getCallbackParameter());
- var pageState = $F(callback.FIELD_CALLBACK_PAGESTATE);
- if(typeof(pageState) != "undefined")
- data[callback.FIELD_CALLBACK_PAGESTATE] = pageState;
- data[callback.FIELD_CALLBACK_TARGET] = this.id;
- if(this.ActiveControl.EventTarget)
- data[callback.FIELD_POSTBACK_TARGET] = this.ActiveControl.EventTarget;
- if(this.ActiveControl.EventParameter)
- data[callback.FIELD_POSTBACK_PARAMETER] = this.ActiveControl.EventParameter;
- return $H(data).toQueryString();
- },
-
- /**
- * Creates a random string with a length of 8 chars.
- * @return string
- */
- randomString : function()
- {
- chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
- randomString = "";
- for(x=0;x<8;x++)
- randomString += chars.charAt(Math.floor(Math.random() * 62));
- return randomString
- }
-});
-
-/**
- * Create a new callback request using default settings.
- * @param string callback handler unique ID.
- * @param mixed parameter to pass to callback handler on the server side.
- * @param function client side onSuccess event handler.
- * @param object additional request options.
- * @return boolean always false.
- */
-Prado.Callback = function(UniqueID, parameter, onSuccess, options)
-{
- var callback =
- {
- 'CallbackParameter' : parameter || '',
- 'onSuccess' : onSuccess || Prototype.emptyFunction
- };
-
- Object.extend(callback, options || {});
-
- var request = new Prado.CallbackRequest(UniqueID, callback);
- request.dispatch();
- return false;
-};
-
-
-
-/**
- * Asset manager classes for lazy loading of scripts and stylesheets
- * @author Gabor Berczi (gabor.berczi@devworx.hu)
- */
-
-if (typeof(Prado.AssetManagerClass)=="undefined") {
-
- Prado.AssetManagerClass = Class.create();
- Prado.AssetManagerClass.prototype = {
-
- initialize: function() {
- this.loadedAssets = new Array();
- this.discoverLoadedAssets();
- },
-
-
- /**
- * Detect which assets are already loaded by page markup.
- * This is done by looking up all <asset> elements and registering the values of their src attributes.
- */
- discoverLoadedAssets: function() {
-
- // wait until document has finished loading to avoid javascript errors
- if (!document.body) return;
-
- var assets = this.findAssetUrlsInMarkup();
- for(var i=0;i<assets.length;i++)
- this.markAssetAsLoaded(assets[i]);
- },
-
- /**
- * Extend url to a fully qualified url.
- * @param string url
- */
- makeFullUrl: function(url) {
-
- // this is not intended to be a fully blown url "canonicalizator",
- // just to handle the most common and basic asset paths used by Prado
-
- if (!this.baseUri) this.baseUri = window.location;
-
- if (url.indexOf('://')==-1)
- {
- var a = document.createElement('a');
- a.href = url;
-
- if (a.href.indexOf('://')!=-1)
- url = a.href;
- else
- {
- var path = a.pathname;
- if (path.substr(0,1)!='/') path = '/'+path;
- url = this.baseUri.protocol+'//'+this.baseUri.host+path;
- }
- }
- return url;
- },
-
- isAssetLoaded: function(url) {
- url = this.makeFullUrl(url);
- return (this.loadedAssets.indexOf(url)!=-1);
- },
-
- /**
- * Mark asset as being already loaded
- * @param string url of the asset
- */
- markAssetAsLoaded: function(url) {
- url = this.makeFullUrl(url);
- if (this.loadedAssets.indexOf(url)==-1)
- this.loadedAssets.push(url);
- },
-
- assetReadyStateChanged: function(url, element, callback, finalevent) {
- if (finalevent || (element.readyState == 'loaded') || (element.readyState == 'complete'))
- if (!element.assetCallbackFired)
- {
- element.assetCallbackFired = true;
- callback(url,element);
- }
- },
-
- assetLoadFailed: function(url, element, callback) {
- debugger;
- element.assetCallbackFired = true;
- if(typeof Logger != "undefined")
- Logger.error("Failed to load asset: "+url, this);
- if (!element.assetCallbackFired)
- callback(url,element,false);
- },
-
- /**
- * Load a new asset dynamically into the page.
- * Please not thet loading is asynchronous and therefore you can't assume that
- * the asset is loaded and ready when returning from this function.
- * @param string url of the asset to load
- * @param callback will be called when the asset has loaded (or failed to load)
- */
- startAssetLoad: function(url, callback) {
-
- // create new <asset> element in page header
- var asset = this.createAssetElement(url);
-
- if (callback)
- {
- asset.onreadystatechange = this.assetReadyStateChanged.bind(this, url, asset, callback, false);
- asset.onload = this.assetReadyStateChanged.bind(this, url, asset, callback, true);
- asset.onerror = this.assetLoadFailed.bind(this, url, asset, callback);
- asset.assetCallbackFired = false;
- }
-
- var head = document.getElementsByTagName('head')[0];
- head.appendChild(asset);
-
- // mark this asset as loaded
- this.markAssetAsLoaded(url);
-
- return (callback!=false);
- },
-
- /**
- * Check whether a asset is loaded into the page, and if itsn't, load it now
- * @param string url of the asset to check/load
- * @return boolean returns true if asset is already loaded, or false, if loading has just started. callback will be called when loading has finished.
- */
- ensureAssetIsLoaded: function(url, callback) {
- url = this.makeFullUrl(url);
- if (this.loadedAssets.indexOf(url)==-1)
- {
- this.startAssetLoad(url,callback);
- return false;
- }
- else
- return true;
- }
-
- }
-
-};
-
- Prado.ScriptManagerClass = Class.extend(Prado.AssetManagerClass, {
-
- findAssetUrlsInMarkup: function() {
- var urls = new Array();
- var scripts = document.getElementsByTagName('script');
- for(var i=0;i<scripts.length;i++)
- {
- var e = scripts[i]; var src = e.src;
- if (src!="")
- urls.push(src);
- }
- return urls;
- },
-
- createAssetElement: function(url) {
- var asset = document.createElement('script');
- asset.type = 'text/javascript';
- asset.src = url;
-// asset.async = false; // HTML5 only
- return asset;
- }
-
- });
-
- Prado.StyleSheetManagerClass = Class.extend(Prado.AssetManagerClass, {
-
- findAssetUrlsInMarkup: function() {
- var urls = new Array();
- var scripts = document.getElementsByTagName('link');
- for(var i=0;i<scripts.length;i++)
- {
- var e = scripts[i]; var href = e.href;
- if ((e.rel=="stylesheet") && (href.length>0))
- urls.push(href);
- }
- return urls;
- },
-
- createAssetElement: function(url) {
- var asset = document.createElement('link');
- asset.rel = 'stylesheet';
- asset.media = 'screen';
- asset.setAttribute('type', 'text/css');
- asset.href = url;
-// asset.async = false; // HTML5 only
- return asset;
- }
-
- });
-
- if (typeof(Prado.ScriptManager)=="undefined") Prado.ScriptManager = new Prado.ScriptManagerClass();
- if (typeof(Prado.StyleSheetManager)=="undefined") Prado.StyleSheetManager = new Prado.StyleSheetManagerClass();
-
- // make sure we scan for loaded scripts again when the page has been loaded
- var discover = function() {
- Prado.ScriptManager.discoverLoadedAssets();
- Prado.StyleSheetManager.discoverLoadedAssets();
- }
- if (window.attachEvent) window.attachEvent('onload', discover);
- else if (window.addEventListener) window.addEventListener('load', discover, false);
-
+
+Prado.AjaxRequest = Class.create();
+Prado.AjaxRequest.prototype = Object.clone(Ajax.Request.prototype);
+
+/**
+ * Override Prototype's response implementation.
+ */
+Object.extend(Prado.AjaxRequest.prototype,
+{
+ /*initialize: function(request)
+ {
+ this.CallbackRequest = request;
+ this.transport = Ajax.getTransport();
+ this.setOptions(request.options);
+ this.request(request.url);
+ },*/
+
+ /**
+ * Customize the response, dispatch onXXX response code events, and
+ * tries to execute response actions (javascript statements).
+ */
+ respondToReadyState : function(readyState)
+ {
+ var event = Ajax.Request.Events[readyState];
+ var transport = this.transport, json = this.getBodyDataPart(Prado.CallbackRequest.DATA_HEADER);
+
+ if (event == 'Complete')
+ {
+ var redirectUrl = this.getBodyContentPart(Prado.CallbackRequest.REDIRECT_HEADER);
+ if (redirectUrl)
+ document.location.href = redirectUrl;
+
+ if ((this.getHeader('Content-type') || '').match(/^text\/javascript/i))
+ {
+ try
+ {
+ json = eval('(' + transport.responseText + ')');
+ }
+ catch (e)
+ {
+ if(typeof(json) == "string")
+ json = Prado.CallbackRequest.decode(result);
+ }
+ }
+
+ try
+ {
+ Prado.CallbackRequest.updatePageState(this,transport);
+ Prado.CallbackRequest.checkHiddenFields(this,transport);
+ var obj = this;
+ Prado.CallbackRequest.loadAssets(this,transport, function()
+
+ {
+ try
+ {
+ Ajax.Responders.dispatch('on' + transport.status, obj, transport, json);
+ Prado.CallbackRequest.dispatchActions(transport,obj.getBodyDataPart(Prado.CallbackRequest.ACTION_HEADER));
+
+ (
+ obj.options['on' + obj.transport.status]
+ ||
+ obj.options['on' + (obj.success() ? 'Success' : 'Failure')]
+ ||
+ Prototype.emptyFunction
+ ) (obj, json);
+ }
+ catch (e)
+ {
+ obj.dispatchException(e);
+ }
+ }
+ );
+ }
+ catch (e)
+ {
+ this.dispatchException(e);
+ }
+ }
+
+ try {
+ (this.options['on' + event] || Prototype.emptyFunction)(this, json);
+ Ajax.Responders.dispatch('on' + event, this, transport, json);
+ } catch (e) {
+ this.dispatchException(e);
+ }
+
+ /* Avoid memory leak in MSIE: clean up the oncomplete event handler */
+ if (event == 'Complete')
+ this.transport.onreadystatechange = Prototype.emptyFunction;
+ },
+
+ /**
+ * Gets header data assuming JSON encoding.
+ * @param string header name
+ * @return object header data as javascript structures.
+ */
+ getHeaderData : function(name)
+ {
+ return this.getJsonData(this.getHeader(name));
+ },
+
+ getBodyContentPart : function(name)
+ {
+ if(typeof(this.transport.responseText)=="string")
+ return Prado.Element.extractContent(this.transport.responseText, name);
+ },
+
+ getJsonData : function(json)
+ {
+ try
+ {
+ return eval('(' + json + ')');
+ }
+ catch (e)
+ {
+ if(typeof(json) == "string")
+ return Prado.CallbackRequest.decode(json);
+ }
+ },
+
+ getBodyDataPart : function(name)
+ {
+ return this.getJsonData(this.getBodyContentPart(name));
+ }
+});
+
+/**
+ * Prado Callback client-side request handler.
+ */
+Prado.CallbackRequest = Class.create();
+
+/**
+ * Static definitions.
+ */
+Object.extend(Prado.CallbackRequest,
+{
+ /**
+ * Callback request target POST field name.
+ */
+ FIELD_CALLBACK_TARGET : 'PRADO_CALLBACK_TARGET',
+ /**
+ * Callback request parameter POST field name.
+ */
+ FIELD_CALLBACK_PARAMETER : 'PRADO_CALLBACK_PARAMETER',
+ /**
+ * Callback request page state field name,
+ */
+ FIELD_CALLBACK_PAGESTATE : 'PRADO_PAGESTATE',
+
+ FIELD_POSTBACK_TARGET : 'PRADO_POSTBACK_TARGET',
+
+ FIELD_POSTBACK_PARAMETER : 'PRADO_POSTBACK_PARAMETER',
+
+ /**
+ * List of form fields that will be collected during callback.
+ */
+ PostDataLoaders : [],
+ /**
+ * Response data header name.
+ */
+ DATA_HEADER : 'X-PRADO-DATA',
+ /**
+ * Response javascript execution statement header name.
+ */
+ ACTION_HEADER : 'X-PRADO-ACTIONS',
+ /**
+ * Response errors/exceptions header name.
+ */
+ ERROR_HEADER : 'X-PRADO-ERROR',
+ /**
+ * Page state header name.
+ */
+ PAGESTATE_HEADER : 'X-PRADO-PAGESTATE',
+ /**
+ * Script list header name.
+ */
+ SCRIPTLIST_HEADER : 'X-PRADO-SCRIPTLIST',
+ /**
+ * Stylesheet list header name.
+ */
+ STYLESHEETLIST_HEADER : 'X-PRADO-STYLESHEETLIST',
+ /**
+ * Hidden field list header name.
+ */
+ HIDDENFIELDLIST_HEADER : 'X-PRADO-HIDDENFIELDLIST',
+
+ REDIRECT_HEADER : 'X-PRADO-REDIRECT',
+
+ requestQueue : [],
+
+ //all request objects
+ requests : {},
+
+ getRequestById : function(id)
+ {
+ var requests = Prado.CallbackRequest.requests;
+ if(typeof(requests[id]) != "undefined")
+ return requests[id];
+ },
+
+ dispatch : function(id)
+ {
+ var requests = Prado.CallbackRequest.requests;
+ if(typeof(requests[id]) != "undefined")
+ requests[id].dispatch();
+ },
+
+ /**
+ * Add ids of inputs element to post in the request.
+ */
+ addPostLoaders : function(ids)
+ {
+ var self = Prado.CallbackRequest;
+ self.PostDataLoaders = self.PostDataLoaders.concat(ids);
+ var list = [];
+ self.PostDataLoaders.each(function(id)
+ {
+ if(list.indexOf(id) < 0)
+ list.push(id);
+ });
+ self.PostDataLoaders = list;
+ },
+
+ /**
+ * Dispatch callback response actions.
+ */
+ dispatchActions : function(transport,actions)
+ {
+ var self = Prado.CallbackRequest;
+ if(actions && actions.length > 0)
+ actions.each(self.__run.bind(self,transport));
+ },
+
+ /**
+ * Prase and evaluate a Callback clien-side action
+ */
+ __run : function(transport, command)
+ {
+ var self = Prado.CallbackRequest;
+ self.transport = transport;
+ for(var method in command)
+ {
+ try
+ {
+ method.toFunction().apply(self,command[method]);
+ }
+ catch(e)
+ {
+ if(typeof(Logger) != "undefined")
+ self.Exception.onException(null,e);
+ else
+ debugger;
+ }
+ }
+ },
+
+ /**
+ * Respond to Prado Callback request exceptions.
+ */
+ Exception :
+ {
+ /**
+ * Server returns 500 exception. Just log it.
+ */
+ "on500" : function(request, transport, data)
+ {
+ var e = request.getHeaderData(Prado.CallbackRequest.ERROR_HEADER);
+ if (e)
+ Logger.error("Callback Server Error "+e.code, this.formatException(e));
+ else
+ Logger.error("Callback Server Error Unknown",'');
+ },
+
+ /**
+ * Callback OnComplete event,logs reponse and data to console.
+ */
+ 'on200' : function(request, transport, data)
+ {
+ if(transport.status < 500)
+ {
+ var msg = 'HTTP '+transport.status+" with response : \n";
+ if(transport.responseText.trim().length >0)
+ {
+ var f = RegExp('(<!--X-PRADO[^>]+-->)([\\s\\S\\w\\W]*)(<!--//X-PRADO[^>]+-->)',"m");
+ msg += transport.responseText.replace(f,'') + "\n";
+ }
+ if(typeof(data)!="undefined" && data != null)
+ msg += "Data : \n"+inspect(data)+"\n";
+ data = request.getBodyDataPart(Prado.CallbackRequest.ACTION_HEADER);
+ if(data && data.length > 0)
+ {
+ msg += "Actions : \n";
+ data.each(function(action)
+ {
+ msg += inspect(action)+"\n";
+ });
+ }
+ Logger.info(msg);
+ }
+ },
+
+ /**
+ * Uncaught exceptions during callback response.
+ */
+ onException : function(request,e)
+ {
+ var msg = "";
+ $H(e).each(function(item)
+ {
+ msg += item.key+": "+item.value+"\n";
+ })
+ Logger.error('Uncaught Callback Client Exception:', 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";
+ }
+ msg += e.version+" "+e.time+"\n";
+ return msg;
+ }
+ },
+
+ /**
+ * @return string JSON encoded data.
+ */
+ encode : function(data)
+ {
+ return Prado.JSON.stringify(data);
+ },
+
+ /**
+ * @return mixed javascript data decoded from string using JSON decoding.
+ */
+ decode : function(data)
+ {
+ if(typeof(data) == "string" && data.trim().length > 0)
+ return Prado.JSON.parse(data);
+ else
+ return null;
+ },
+
+ /**
+ * Dispatch a normal request, no timeouts or aborting of requests.
+ */
+ dispatchNormalRequest : function(callback)
+ {
+ callback.options.postBody = callback._getPostData(),
+ callback.request(callback.url);
+ return true;
+ },
+
+ /**
+ * Abort the current priority request in progress.
+ */
+ tryNextRequest : function()
+ {
+ var self = Prado.CallbackRequest;
+ //Logger.debug('trying next request');
+ if(typeof(self.currentRequest) == 'undefined' || self.currentRequest==null)
+ {
+ if(self.requestQueue.length > 0)
+ return self.dispatchQueue();
+ //else
+ //Logger.warn('empty queque');
+ }
+ //else
+ //Logger.warn('current request ' + self.currentRequest.id);
+ },
+
+ /*
+ * Checks which scripts are used by the response and ensures they're loaded
+ */
+ loadScripts : function(request, transport, callback)
+ {
+ var self = Prado.CallbackRequest;
+ var data = request.getBodyContentPart(self.SCRIPTLIST_HEADER);
+ if (!this.ScriptsToLoad) this.ScriptsToLoad = new Array();
+ this.ScriptLoadFinishedCallback = callback;
+ if (typeof(data) == "string" && data.length > 0)
+ {
+ json = Prado.CallbackRequest.decode(data);
+ if(typeof(json) != "object")
+ Logger.warn("Invalid script list:"+data);
+ else
+ for(var key in json)
+ if (/^\d+$/.test(key))
+ {
+ var url = json[key];
+ if (!Prado.ScriptManager.isAssetLoaded(url))
+ this.ScriptsToLoad.push(url);
+ }
+ }
+ this.loadNextScript();
+ },
+
+ loadNextScript: function()
+ {
+ var done = (!this.ScriptsToLoad || (this.ScriptsToLoad.length==0));
+ if (!done)
+ {
+ var url = this.ScriptsToLoad.shift(); var obj = this;
+ if (
+ Prado.ScriptManager.ensureAssetIsLoaded(url,
+ function() {
+ obj.loadNextScript();
+ }
+ )
+ )
+ this.loadNextScript();
+ }
+ else
+ {
+ if (this.ScriptLoadFinishedCallback)
+ {
+ var cb = this.ScriptLoadFinishedCallback;
+ this.ScriptLoadFinishedCallback = null;
+ cb();
+ }
+ }
+ },
+
+ loadStyleSheetsAsync : function(request, transport)
+ {
+ var self = Prado.CallbackRequest;
+ var data = request.getBodyContentPart(self.STYLESHEETLIST_HEADER);
+ if (typeof(data) == "string" && data.length > 0)
+ {
+ json = Prado.CallbackRequest.decode(data);
+ if(typeof(json) != "object")
+ Logger.warn("Invalid stylesheet list:"+data);
+ else
+ for(var key in json)
+ if (/^\d+$/.test(key))
+ Prado.StyleSheetManager.ensureAssetIsLoaded(json[key],null);
+ }
+ },
+
+ loadStyleSheets : function(request, transport, callback)
+ {
+ var self = Prado.CallbackRequest;
+ var data = request.getBodyContentPart(self.STYLESHEETLIST_HEADER);
+ if (!this.StyleSheetsToLoad) this.StyleSheetsToLoad = new Array();
+ this.StyleSheetLoadFinishedCallback = callback;
+ if (typeof(data) == "string" && data.length > 0)
+ {
+ json = Prado.CallbackRequest.decode(data);
+ if(typeof(json) != "object")
+ Logger.warn("Invalid stylesheet list:"+data);
+ else
+ for(var key in json)
+ if (/^\d+$/.test(key))
+ {
+ var url = json[key];
+ if (!Prado.StyleSheetManager.isAssetLoaded(url))
+ this.StyleSheetsToLoad.push(url);
+ }
+ }
+ this.loadNextStyleSheet();
+ },
+
+ loadNextStyleSheet: function()
+ {
+ var done = (!this.StyleSheetsToLoad || (this.StyleSheetsToLoad.length==0));
+ if (!done)
+ {
+ var url = this.StyleSheetsToLoad.shift(); var obj = this;
+ if (
+ Prado.StyleSheetManager.ensureAssetIsLoaded(url,
+ function() {
+ obj.loadNextStyleSheet();
+ }
+ )
+ )
+ this.loadNextStyleSheet();
+ }
+ else
+ {
+ if (this.StyleSheetLoadFinishedCallback)
+ {
+ var cb = this.StyleSheetLoadFinishedCallback;
+ this.StyleSheetLoadFinishedCallback = null;
+ cb();
+ }
+ }
+ },
+
+ /*
+ * Checks which assets are used by the response and ensures they're loaded
+ */
+ loadAssets : function(request, transport, callback)
+ {
+ /*
+
+ ! This is the callback-based loader for stylesheets, which loads them one-by-one, and
+ ! waits for all of them to be loaded before loading scripts and processing the rest of
+ ! the callback.
+ !
+ ! That however is not neccessary, as stylesheets can be loaded asynchronously too.
+ !
+ ! I leave this code here for the case that this turns out to be a compatibility issue
+ ! (for ex. I can imagine some scripts trying to access stylesheet properties and such)
+ ! so if need can be reactivated. If you do so, comment out the async stylesheet loader below!
+
+ var obj = this;
+ this.loadStyleSheets(request,transport, function() {
+ obj.loadScripts(request,transport,callback);
+ });
+
+ */
+
+ this.loadStyleSheetsAsync(request,transport);
+
+ this.loadScripts(request,transport,callback);
+ },
+
+ checkHiddenField: function(name, value)
+ {
+ var id = name.replace(':','_');
+ if (!document.getElementById(id))
+ {
+ var field = document.createElement('input');
+ field.setAttribute('type','hidden');
+ field.id = id;
+ field.name = name;
+ field.value = value;
+ document.body.appendChild(field);
+ }
+ },
+
+ checkHiddenFields : function(request, transport)
+ {
+ var self = Prado.CallbackRequest;
+ var data = request.getBodyContentPart(self.HIDDENFIELDLIST_HEADER);
+ if (typeof(data) == "string" && data.length > 0)
+ {
+ json = Prado.CallbackRequest.decode(data);
+ if(typeof(json) != "object")
+ Logger.warn("Invalid hidden field list:"+data);
+ else
+ for(var key in json)
+ this.checkHiddenField(key,json[key]);
+ }
+ },
+
+ /**
+ * Updates the page state. It will update only if EnablePageStateUpdate and
+ * HasPriority options are both true.
+ */
+ updatePageState : function(request, transport)
+ {
+ var self = Prado.CallbackRequest;
+ var pagestate = $(self.FIELD_CALLBACK_PAGESTATE);
+ var enabled = request.ActiveControl.EnablePageStateUpdate && request.ActiveControl.HasPriority;
+ var aborted = typeof(self.currentRequest) == 'undefined' || self.currentRequest == null;
+ if(enabled && !aborted && pagestate)
+ {
+ var data = request.getBodyContentPart(self.PAGESTATE_HEADER);
+ if(typeof(data) == "string" && data.length > 0)
+ pagestate.value = data;
+ else
+ {
+ if(typeof(Logger) != "undefined")
+ Logger.warn("Missing page state:"+data);
+ //Logger.warn('## bad state: setting current request to null');
+ self.endCurrentRequest();
+ //self.tryNextRequest();
+ return false;
+ }
+ }
+ self.endCurrentRequest();
+ //Logger.warn('## state updated: setting current request to null');
+ //self.tryNextRequest();
+ return true;
+ },
+
+ enqueue : function(callback)
+ {
+ var self = Prado.CallbackRequest;
+ self.requestQueue.push(callback);
+ //Logger.warn("equeued "+callback.id+", current queque length="+self.requestQueue.length);
+ self.tryNextRequest();
+ },
+
+ dispatchQueue : function()
+ {
+ var self = Prado.CallbackRequest;
+ //Logger.warn("dispatching queque, length="+self.requestQueue.length+" request="+self.currentRequest);
+ var callback = self.requestQueue.shift();
+ self.currentRequest = callback;
+
+ //get data
+ callback.options.postBody = callback._getPostData(),
+
+ //callback.request = new Prado.AjaxRequest(callback);
+ callback.timeout = setTimeout(function()
+ {
+ //Logger.warn("priority timeout");
+ self.abortRequest(callback.id);
+ },callback.ActiveControl.RequestTimeOut);
+ callback.request(callback.url);
+ //Logger.debug("dispatched "+self.currentRequest.id + " ...")
+ },
+
+ endCurrentRequest : function()
+ {
+ var self = Prado.CallbackRequest;
+ if(typeof(self.currentRequest) != 'undefined' && self.currentRequest != null)
+ clearTimeout(self.currentRequest.timeout);
+ self.currentRequest=null;
+ },
+
+ abortRequest : function(id)
+ {
+ //Logger.warn("abort id="+id);
+ var self = Prado.CallbackRequest;
+ if(typeof(self.currentRequest) != 'undefined'
+ && self.currentRequest != null && self.currentRequest.id == id)
+ {
+ var request = self.currentRequest;
+ if(request.transport.readyState < 4)
+ request.transport.abort();
+ //Logger.warn('## aborted: setting current request to null');
+ self.endCurrentRequest();
+ }
+ self.tryNextRequest();
+ }
+});
+
+/**
+ * Automatically aborts the current request when a priority request has returned.
+ */
+Ajax.Responders.register({onComplete : function(request)
+{
+ if(request && request instanceof Prado.AjaxRequest)
+ {
+ if(request.ActiveControl.HasPriority)
+ Prado.CallbackRequest.tryNextRequest();
+ }
+}});
+
+//Add HTTP exception respones when logger is enabled.
+Event.OnLoad(function()
+{
+ if(typeof Logger != "undefined")
+ Ajax.Responders.register(Prado.CallbackRequest.Exception);
+});
+
+/**
+ * Create and prepare a new callback request.
+ * Call the dispatch() method to start the callback request.
+ * <code>
+ * request = new Prado.CallbackRequest(UniqueID, callback);
+ * request.dispatch();
+ * </code>
+ */
+Prado.CallbackRequest.prototype = Object.extend(Prado.AjaxRequest.prototype,
+{
+
+ /**
+ * Prepare and inititate a callback request.
+ */
+ initialize : function(id, options)
+ {
+ /**
+ * Callback URL, same url as the current page.
+ */
+ this.url = this.getCallbackUrl();
+
+ this.transport = Ajax.getTransport();
+ this.Enabled = true;
+ this.id = id;
+ this.randomId = this.randomString();
+
+ if(typeof(id)=="string"){
+ Prado.CallbackRequest.requests[id+"__"+this.randomId] = this;
+ }
+
+ this.setOptions(Object.extend(
+ {
+ RequestTimeOut : 30000, // 30 second timeout.
+ EnablePageStateUpdate : true,
+ HasPriority : true,
+ CausesValidation : true,
+ ValidationGroup : null,
+ PostInputs : true
+ }, options || {}));
+
+ this.ActiveControl = this.options;
+ Prado.CallbackRequest.requests[id+"__"+this.randomId].ActiveControl = this.options;
+ },
+
+ /**
+ * Sets the request options
+ * @return {Array} request options.
+ */
+ setOptions: function(options){
+
+ this.options = {
+ method: 'post',
+ asynchronous: true,
+ contentType: 'application/x-www-form-urlencoded',
+ encoding: 'UTF-8',
+ parameters: '',
+ evalJSON: true,
+ evalJS: true
+ };
+
+ Object.extend(this.options, options || { });
+
+ this.options.method = this.options.method.toLowerCase();
+ if(Object.isString(this.options.parameters)){
+ this.options.parameters = this.options.parameters.toQueryParams();
+ }
+ },
+
+ /**
+ * Gets the url from the forms that contains the PRADO_PAGESTATE
+ * @return {String} callback url.
+ */
+ getCallbackUrl : function()
+ {
+ return $('PRADO_PAGESTATE').form.action;
+ },
+
+ /**
+ * Sets the request parameter
+ * @param {Object} parameter value
+ */
+ setCallbackParameter : function(value)
+ {
+ var requestId = this.id+"__"+this.randomId;
+ this.ActiveControl['CallbackParameter'] = value;
+ Prado.CallbackRequest.requests[requestId].ActiveControl['CallbackParameter'] = value;
+ },
+
+ /**
+ * @return {Object} request paramater value.
+ */
+ getCallbackParameter : function()
+ {
+ return Prado.CallbackRequest.requests[this.id+"__"+this.randomId].ActiveControl['CallbackParameter'];
+ },
+
+ /**
+ * Sets the callback request timeout.
+ * @param {integer} timeout in milliseconds
+ */
+ setRequestTimeOut : function(timeout)
+ {
+ this.ActiveControl['RequestTimeOut'] = timeout;
+ },
+
+ /**
+ * @return {integer} request timeout in milliseconds
+ */
+ getRequestTimeOut : function()
+ {
+ return this.ActiveControl['RequestTimeOut'];
+ },
+
+ /**
+ * Set true to enable validation on callback dispatch.
+ * @param {boolean} true to validate
+ */
+ setCausesValidation : function(validate)
+ {
+ this.ActiveControl['CausesValidation'] = validate;
+ },
+
+ /**
+ * @return {boolean} validate on request dispatch
+ */
+ getCausesValidation : function()
+ {
+ return this.ActiveControl['CausesValidation'];
+ },
+
+ /**
+ * Sets the validation group to validate during request dispatch.
+ * @param {string} validation group name
+ */
+ setValidationGroup : function(group)
+ {
+ this.ActiveControl['ValidationGroup'] = group;
+ },
+
+ /**
+ * @return {string} validation group name.
+ */
+ getValidationGroup : function()
+ {
+ return this.ActiveControl['ValidationGroup'];
+ },
+
+ /**
+ * Dispatch the callback request.
+ */
+ dispatch : function()
+ {
+ //Logger.info("dispatching request");
+ //trigger tinyMCE to save data.
+ if(typeof tinyMCE != "undefined")
+ tinyMCE.triggerSave();
+
+ if(this.ActiveControl.CausesValidation && typeof(Prado.Validation) != "undefined")
+ {
+ var form = this.ActiveControl.Form || Prado.Validation.getForm();
+ if(Prado.Validation.validate(form,this.ActiveControl.ValidationGroup,this) == false)
+ return false;
+ }
+
+ if(this.ActiveControl.onPreDispatch)
+ this.ActiveControl.onPreDispatch(this,null);
+
+ if(!this.Enabled)
+ return;
+
+ // Opera don't have onLoading/onLoaded state, so, simulate them just
+ // before sending the request.
+ if (Prototype.Browser.Opera)
+ {
+ if (this.ActiveControl.onLoading)
+ {
+ this.ActiveControl.onLoading(this,null);
+ Ajax.Responders.dispatch('onLoading',this, this.transport,null);
+ }
+ if (this.ActiveControl.onLoaded)
+ {
+ this.ActiveControl.onLoaded(this,null);
+ Ajax.Responders.dispatch('onLoaded',this, this.transport,null);
+ }
+ }
+
+ var result;
+ if(this.ActiveControl.HasPriority)
+ {
+ return Prado.CallbackRequest.enqueue(this);
+ //return Prado.CallbackRequest.dispatchPriorityRequest(this);
+ }
+ else
+ return Prado.CallbackRequest.dispatchNormalRequest(this);
+ },
+
+ abort : function()
+ {
+ return Prado.CallbackRequest.abortRequest(this.id);
+ },
+
+ /**
+ * 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 = {};
+ var callback = Prado.CallbackRequest;
+ if(this.ActiveControl.PostInputs != false)
+ {
+ callback.PostDataLoaders.each(function(name)
+ {
+ var elements=$A(document.getElementsByName(name));
+ if(elements.size() == 0)
+ {
+ name += '[]';
+ elements=$A(document.getElementsByName(name));
+ }
+ elements.each(function(element)
+ {
+ //IE will try to get elements with ID == name as well.
+ if(element.type && element.name == name)
+ {
+ var value = $F(element);
+ if(typeof(value) != "undefined" && value != null)
+ data[name] = value;
+ }
+ })
+ })
+ }
+ if(typeof(this.ActiveControl.CallbackParameter) != "undefined")
+ data[callback.FIELD_CALLBACK_PARAMETER] = callback.encode(this.getCallbackParameter());
+ var pageState = $F(callback.FIELD_CALLBACK_PAGESTATE);
+ if(typeof(pageState) != "undefined")
+ data[callback.FIELD_CALLBACK_PAGESTATE] = pageState;
+ data[callback.FIELD_CALLBACK_TARGET] = this.id;
+ if(this.ActiveControl.EventTarget)
+ data[callback.FIELD_POSTBACK_TARGET] = this.ActiveControl.EventTarget;
+ if(this.ActiveControl.EventParameter)
+ data[callback.FIELD_POSTBACK_PARAMETER] = this.ActiveControl.EventParameter;
+ return $H(data).toQueryString();
+ },
+
+ /**
+ * Creates a random string with a length of 8 chars.
+ * @return string
+ */
+ randomString : function()
+ {
+ chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
+ randomString = "";
+ for(x=0;x<8;x++)
+ randomString += chars.charAt(Math.floor(Math.random() * 62));
+ return randomString
+ }
+});
+
+/**
+ * Create a new callback request using default settings.
+ * @param string callback handler unique ID.
+ * @param mixed parameter to pass to callback handler on the server side.
+ * @param function client side onSuccess event handler.
+ * @param object additional request options.
+ * @return boolean always false.
+ */
+Prado.Callback = function(UniqueID, parameter, onSuccess, options)
+{
+ var callback =
+ {
+ 'CallbackParameter' : parameter || '',
+ 'onSuccess' : onSuccess || Prototype.emptyFunction
+ };
+
+ Object.extend(callback, options || {});
+
+ var request = new Prado.CallbackRequest(UniqueID, callback);
+ request.dispatch();
+ return false;
+};
+
+
+
+/**
+ * Asset manager classes for lazy loading of scripts and stylesheets
+ * @author Gabor Berczi (gabor.berczi@devworx.hu)
+ */
+
+if (typeof(Prado.AssetManagerClass)=="undefined") {
+
+ Prado.AssetManagerClass = Class.create();
+ Prado.AssetManagerClass.prototype = {
+
+ initialize: function() {
+ this.loadedAssets = new Array();
+ this.discoverLoadedAssets();
+ },
+
+
+ /**
+ * Detect which assets are already loaded by page markup.
+ * This is done by looking up all <asset> elements and registering the values of their src attributes.
+ */
+ discoverLoadedAssets: function() {
+
+ // wait until document has finished loading to avoid javascript errors
+ if (!document.body) return;
+
+ var assets = this.findAssetUrlsInMarkup();
+ for(var i=0;i<assets.length;i++)
+ this.markAssetAsLoaded(assets[i]);
+ },
+
+ /**
+ * Extend url to a fully qualified url.
+ * @param string url
+ */
+ makeFullUrl: function(url) {
+
+ // this is not intended to be a fully blown url "canonicalizator",
+ // just to handle the most common and basic asset paths used by Prado
+
+ if (!this.baseUri) this.baseUri = window.location;
+
+ if (url.indexOf('://')==-1)
+ {
+ var a = document.createElement('a');
+ a.href = url;
+
+ if (a.href.indexOf('://')!=-1)
+ url = a.href;
+ else
+ {
+ var path = a.pathname;
+ if (path.substr(0,1)!='/') path = '/'+path;
+ url = this.baseUri.protocol+'//'+this.baseUri.host+path;
+ }
+ }
+ return url;
+ },
+
+ isAssetLoaded: function(url) {
+ url = this.makeFullUrl(url);
+ return (this.loadedAssets.indexOf(url)!=-1);
+ },
+
+ /**
+ * Mark asset as being already loaded
+ * @param string url of the asset
+ */
+ markAssetAsLoaded: function(url) {
+ url = this.makeFullUrl(url);
+ if (this.loadedAssets.indexOf(url)==-1)
+ this.loadedAssets.push(url);
+ },
+
+ assetReadyStateChanged: function(url, element, callback, finalevent) {
+ if (finalevent || (element.readyState == 'loaded') || (element.readyState == 'complete'))
+ if (!element.assetCallbackFired)
+ {
+ element.assetCallbackFired = true;
+ callback(url,element);
+ }
+ },
+
+ assetLoadFailed: function(url, element, callback) {
+ debugger;
+ element.assetCallbackFired = true;
+ if(typeof Logger != "undefined")
+ Logger.error("Failed to load asset: "+url, this);
+ if (!element.assetCallbackFired)
+ callback(url,element,false);
+ },
+
+ /**
+ * Load a new asset dynamically into the page.
+ * Please not thet loading is asynchronous and therefore you can't assume that
+ * the asset is loaded and ready when returning from this function.
+ * @param string url of the asset to load
+ * @param callback will be called when the asset has loaded (or failed to load)
+ */
+ startAssetLoad: function(url, callback) {
+
+ // create new <asset> element in page header
+ var asset = this.createAssetElement(url);
+
+ if (callback)
+ {
+ asset.onreadystatechange = this.assetReadyStateChanged.bind(this, url, asset, callback, false);
+ asset.onload = this.assetReadyStateChanged.bind(this, url, asset, callback, true);
+ asset.onerror = this.assetLoadFailed.bind(this, url, asset, callback);
+ asset.assetCallbackFired = false;
+ }
+
+ var head = document.getElementsByTagName('head')[0];
+ head.appendChild(asset);
+
+ // mark this asset as loaded
+ this.markAssetAsLoaded(url);
+
+ return (callback!=false);
+ },
+
+ /**
+ * Check whether a asset is loaded into the page, and if itsn't, load it now
+ * @param string url of the asset to check/load
+ * @return boolean returns true if asset is already loaded, or false, if loading has just started. callback will be called when loading has finished.
+ */
+ ensureAssetIsLoaded: function(url, callback) {
+ url = this.makeFullUrl(url);
+ if (this.loadedAssets.indexOf(url)==-1)
+ {
+ this.startAssetLoad(url,callback);
+ return false;
+ }
+ else
+ return true;
+ }
+
+ }
+
+};
+
+ Prado.ScriptManagerClass = Class.extend(Prado.AssetManagerClass, {
+
+ findAssetUrlsInMarkup: function() {
+ var urls = new Array();
+ var scripts = document.getElementsByTagName('script');
+ for(var i=0;i<scripts.length;i++)
+ {
+ var e = scripts[i]; var src = e.src;
+ if (src!="")
+ urls.push(src);
+ }
+ return urls;
+ },
+
+ createAssetElement: function(url) {
+ var asset = document.createElement('script');
+ asset.type = 'text/javascript';
+ asset.src = url;
+// asset.async = false; // HTML5 only
+ return asset;
+ }
+
+ });
+
+ Prado.StyleSheetManagerClass = Class.extend(Prado.AssetManagerClass, {
+
+ findAssetUrlsInMarkup: function() {
+ var urls = new Array();
+ var scripts = document.getElementsByTagName('link');
+ for(var i=0;i<scripts.length;i++)
+ {
+ var e = scripts[i]; var href = e.href;
+ if ((e.rel=="stylesheet") && (href.length>0))
+ urls.push(href);
+ }
+ return urls;
+ },
+
+ createAssetElement: function(url) {
+ var asset = document.createElement('link');
+ asset.rel = 'stylesheet';
+ asset.media = 'screen';
+ asset.setAttribute('type', 'text/css');
+ asset.href = url;
+// asset.async = false; // HTML5 only
+ return asset;
+ }
+
+ });
+
+ if (typeof(Prado.ScriptManager)=="undefined") Prado.ScriptManager = new Prado.ScriptManagerClass();
+ if (typeof(Prado.StyleSheetManager)=="undefined") Prado.StyleSheetManager = new Prado.StyleSheetManagerClass();
+
+ // make sure we scan for loaded scripts again when the page has been loaded
+ var discover = function() {
+ Prado.ScriptManager.discoverLoadedAssets();
+ Prado.StyleSheetManager.discoverLoadedAssets();
+ }
+ if (window.attachEvent) window.attachEvent('onload', discover);
+ else if (window.addEventListener) window.addEventListener('load', discover, false);
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 00:17:16 +0000