/// <summary>
/// Loads the document from the given input args.
/// </summary>
/// <param name="message"></param>
/// <returns></returns>
Document LoadFromMessage(ViewMessage message)
{
Contract.Requires <ArgumentNullException>(message != null);
// load save data
if (message.Save != null)
{
return(LoadFromSave(message.Save));
}
// load hash data
if (message.Hash != null)
{
return(LoadFromHash(message.Hash));
}
return(null);
}
/// <summary>
/// Executes the commands packed in the arguments.
/// </summary>
/// <param name="message"></param>
/// <returns></returns>
void Execute(Document document, ViewMessage message)
{
Contract.Requires <ArgumentNullException>(message != null);
Contract.Requires <InvalidOperationException>(document != null);
if (message.Commands != null)
{
foreach (var command in message.Commands)
{
if (command is Commands.Update)
{
var cmd = (Commands.Update)command;
ClientUpdate(document, cmd.NodeId, cmd.Interface, cmd.Property, cmd.Value);
}
if (command is Commands.Invoke)
{
var cmd = (Commands.Invoke)command;
ClientInvoke(document, cmd.NodeId, cmd.Interface, cmd.Method, cmd.Parameters);
}
}
}
}
/// <summary>
/// Loads and executes the object.
/// </summary>
/// <param name="message"></param>
/// <returns></returns>
public ViewMessage Load(ViewMessage message)
{
Contract.Requires <ArgumentNullException>(message != null);
// load document from args
var document = LoadFromMessage(message);
if (document == null)
{
return(new ViewMessage(ViewMessageStatus.NotFound));
}
try
{
Execute(Load(() => document), message);
}
catch (Exception)
{
return(new ViewMessage(ViewMessageStatus.Error));
}
// save and return document
return(Save(document, ViewMessageStatus.Good));
}
/// <summary>
/// Executes the commands packed in the arguments.
/// </summary>
/// <param name="message"></param>
/// <returns></returns>
void Execute(Document document, ViewMessage message)
{
Contract.Requires<ArgumentNullException>(message != null);
Contract.Requires<InvalidOperationException>(document != null);
if (message.Commands != null)
{
foreach (var command in message.Commands)
{
if (command is Commands.Update)
{
var cmd = (Commands.Update)command;
ClientUpdate(document, cmd.NodeId, cmd.Interface, cmd.Property, cmd.Value);
}
if (command is Commands.Invoke)
{
var cmd = (Commands.Invoke)command;
ClientInvoke(document, cmd.NodeId, cmd.Interface, cmd.Method, cmd.Parameters);
}
}
}
}
/// <summary>
/// Loads the document from the given input args.
/// </summary>
/// <param name="message"></param>
/// <returns></returns>
Document LoadFromMessage(ViewMessage message)
{
Contract.Requires<ArgumentNullException>(message != null);
// load save data
if (message.Save != null)
return LoadFromSave(message.Save);
// load hash data
if (message.Hash != null)
return LoadFromHash(message.Hash);
return null;
}
/// <summary>
/// Loads and executes the object.
/// </summary>
/// <param name="message"></param>
/// <returns></returns>
public ViewMessage Load(ViewMessage message)
{
Contract.Requires<ArgumentNullException>(message != null);
// load document from args
var document = LoadFromMessage(message);
if (document == null)
return new ViewMessage(ViewMessageStatus.NotFound);
try
{
Execute(Load(() => document), message);
}
catch (Exception)
{
return new ViewMessage(ViewMessageStatus.Error);
}
// save and return document
return Save(document, ViewMessageStatus.Good);
}
/// <summary>
/// Loads view state information.
/// </summary>
/// <param name="savedState"></param>
protected override void LoadViewState(object savedState)
{
var o = (object[])savedState;
if ((string)o[0] != null)
message = server.Load(JsonConvert.DeserializeObject<ViewMessage>(((string)o[0])));
cssClass = (string)o[1];
validationGroup = (string)o[2];
}
/// <summary>
/// Loads the specified <see cref="Uri"/> into the view.
/// </summary>
/// <param name="uri"></param>
public void Open(string uri)
{
Contract.Requires<ArgumentNullException>(uri != null);
message = server.Load(uri);
}
/// <summary>
/// Loads any view state from custom fields.
/// </summary>
/// <param name="postDataKey"></param>
/// <param name="postCollection"></param>
/// <returns></returns>
bool IPostBackDataHandler.LoadPostData(string postDataKey, NameValueCollection postCollection)
{
if (Page.IsCallback)
return false;
var text = postCollection[postDataKey];
if (!string.IsNullOrWhiteSpace(text))
message = server.Load(JsonConvert.DeserializeObject<ViewMessage>(text));
return false;
}
/// <summary>
/// Raised when a client callback is invoked.
/// </summary>
/// <param name="eventArgument"></param>
void ICallbackEventHandler.RaiseCallbackEvent(string eventArgument)
{
var jobj = JObject.Parse(eventArgument);
if (jobj["Type"].Value<string>() == "Message")
response = new { Type = "Message", Message = message = server.Load(jobj["Data"].ToObject<ViewMessage>()) };
}