/// <summary>
/// Executes the result within the specified context.
/// </summary>
/// <param name="context">The context.</param>
public virtual void Execute(ResultExecutionContext context)
{
if (outcome.WasCancelled)
{
Completed(this, new ResultCompletionEventArgs {
WasCancelled = outcome.WasCancelled
});
return;
}
var element = context.Message.Source.UIElement;
if (string.IsNullOrEmpty(context.Message.OutcomePath))
{
var target = element.FindNameExhaustive <DependencyObject>(context.Message.DefaultOutcomeElement, false);
if (target != null)
{
var defaults = conventionManager.FindElementConventionOrFail(target);
defaults.SetValue(target, outcome.Result);
}
}
else
{
var parts = context.Message.OutcomePath.Split(Separator, StringSplitOptions.RemoveEmptyEntries);
if (parts.Length < 2)
{
Completed(
this,
new ResultCompletionEventArgs
{
Error = new CaliburnException(
string.Format("{0} is not a valid return path.", context.Message.OutcomePath)
)
});
return;
}
var target = element.FindNameExhaustive <object>(parts[0], true);
var setter = CreateSetter(target, parts.Skip(1).ToArray());
if (setter == null)
{
Completed(
this,
new ResultCompletionEventArgs
{
Error = new CaliburnException(
string.Format("{0} is not a valid property path.", parts.Skip(1).Aggregate((a, c) => a + c))
)
});
return;
}
setter(outcome.Result);
}
Completed(this, new ResultCompletionEventArgs());
}
/// <summary>
/// Parses the specified message text.
/// </summary>
/// <param name="target">The target.</param>
/// <param name="messageText">The message text.</param>
/// <returns>The triggers parsed from the text.</returns>
protected virtual IMessageTrigger ParseMessage(string messageText, DependencyObject target)
{
var triggerPlusMessage = messageText.Split('=');
string messageDetail = triggerPlusMessage.Last()
.Replace("[", string.Empty)
.Replace("]", string.Empty)
.Trim();
IRoutedMessage message = null;
foreach (var keyValuePair in messageParsers)
{
if (messageDetail.StartsWith(keyValuePair.Key, StringComparison.CurrentCultureIgnoreCase))
{
message = keyValuePair.Value
.Parse(target, messageDetail.Remove(0, keyValuePair.Key.Length).Trim());
break;
}
}
if (message == null)
{
message = messageParsers[defaultMessageParserKey]
.Parse(target, messageDetail);
Log.Info("Using default parser {0} for {1} on {2}.", defaultMessageParserKey, messageText, target);
}
IMessageTrigger trigger = null;
if (triggerPlusMessage.Length == 1)
{
var defaults = conventionManager.FindElementConventionOrFail(target);
trigger = defaults.CreateTrigger();
Log.Info("Using default trigger {0} for {1} on {2}.", trigger, messageText, target);
}
else
{
var triggerDetail = triggerPlusMessage[0]
.Replace("[", string.Empty)
.Replace("]", string.Empty)
.Trim();
foreach (var keyValuePair in triggerParsers)
{
if (triggerDetail.StartsWith(keyValuePair.Key, StringComparison.CurrentCultureIgnoreCase))
{
trigger = keyValuePair.Value
.Parse(target, triggerDetail.Remove(0, keyValuePair.Key.Length).Trim());
break;
}
}
}
if (trigger == null)
{
var exception = new CaliburnException("Could not determine trigger type.");
Log.Error(exception);
throw exception;
}
trigger.Message = message;
return(trigger);
}
