///<summary>
/// Uses the action pipeline to invoke the method.
///</summary>
///<param name="target"> The object instance to invoke the method on. </param>
///<param name="methodName"> The name of the method to invoke. </param>
///<param name="view"> The view. </param>
///<param name="source"> The source of the invocation. </param>
///<param name="eventArgs"> The event args. </param>
///<param name="parameters"> The method parameters. </param>
public static void Invoke(object target, string methodName, DependencyObject view = null,
FrameworkElement source = null, object eventArgs = null, object[] parameters = null)
{
var context = new ActionExecutionContext
{
Target = target,
Method = target.GetType().GetMethod(methodName),
#if WINFORMS || WEBGUI
Message = new ActionMessage(source, null, methodName),
#else
Message = new ActionMessage {
MethodName = methodName
},
#endif
View = view,
Source = source,
EventArgs = eventArgs
};
if (parameters != null)
{
parameters.Apply(x => context.Message.Parameters.Add(x as Parameter ?? new Parameter {
Value = x
}));
}
ActionMessage.InvokeAction(context);
}
/// <summary>
/// Called by the bootstrapper's constructor at runtime to start the framework.
/// </summary>
protected virtual void StartRuntime()
{
#if WEBGUI
Execute.ResetWithoutDispatcher();
#else
Execute.InitializeWithDispatcher();
#endif
EventAggregator.DefaultPublicationThreadMarshaller = Execute.OnUIThread;
EventAggregator.HandlerResultProcessing = (target, result) =>
{
var coroutine = result as IEnumerable <IResult>;
if (coroutine != null)
{
var viewAware = target as IViewAware;
var view = viewAware != null?viewAware.GetView() : null;
var context = new ActionExecutionContext {
Target = target, View = (DependencyObject)view
};
Coroutine.BeginExecute(coroutine.GetEnumerator(), context);
}
};
#if WEBGUI
var selectedAssemblies = SelectAssemblies();
foreach (var selectedAssembly in selectedAssemblies)
{
if (!AssemblySource.Instance.Contains(selectedAssembly))
{
AssemblySource.Instance.AddRange(new[] { selectedAssembly });
}
}
#else
AssemblySource.Instance.AddRange(SelectAssemblies());
#endif
if (useApplication)
{
#if WINFORMS || WEBGUI
//Application = System.Windows.Forms.Application;
#else
Application = Application.Current;
#endif
PrepareApplication();
}
Configure();
IoC.GetInstance = GetInstance;
IoC.GetAllInstances = GetAllInstances;
IoC.BuildUp = BuildUp;
}
private void UpdateContext()
{
if (context != null)
{
context.Dispose();
}
context = new ActionExecutionContext
{
Message = this,
Source = AssociatedObject
};
PrepareContext(context);
UpdateAvailabilityCore();
}
/// <summary>
/// Executes a coroutine.
/// </summary>
/// <param name="coroutine">The coroutine to execute.</param>
/// <param name="context">The context to execute the coroutine within.</param>
/// /// <param name="callback">The completion callback for the coroutine.</param>
public static void BeginExecute(IEnumerator <IResult> coroutine, ActionExecutionContext context = null,
EventHandler <ResultCompletionEventArgs> callback = null)
{
Log.Info("Executing coroutine.");
var enumerator = CreateParentEnumerator(coroutine);
IoC.BuildUp(enumerator);
if (callback != null)
{
ExecuteOnCompleted(enumerator, callback);
}
ExecuteOnCompleted(enumerator, Completed);
enumerator.Execute(context ?? new ActionExecutionContext());
}
public void Execute(ActionExecutionContext context)
{
var view = context.View.Object as Control;
while (view != null)
{
var indicator = view as IHaveBusyIndicator;
if (indicator != null)
{
indicator.Indicator.IsBusy = !_hide;
indicator.Indicator.BusyContent = _message;
break;
}
view = view.Parent;
}
if (view == null)
{
var queue = new Queue<Control>();
#if WINFORMS
queue.Enqueue(Form.ActiveForm);
#else
queue.Enqueue(ApplicationContext.WebGUIActiveForm);
#endif
while (queue.Count > 0)
{
var current = queue.Dequeue();
if (current == null)
continue;
var indicator = current as BusyIndicator;
if (indicator != null)
{
indicator.IsBusy = !_hide;
break;
}
var count = current.Controls.Count;
for (var i = 0; i < count; i++)
{
queue.Enqueue(current.Controls[i]);
}
}
}
Completed(this, new ResultCompletionEventArgs());
}
/// <summary>
/// Determines the parameters that a method should be invoked with.
/// </summary>
/// <param name="context">The action execution context.</param>
/// <param name="requiredParameters">The parameters required to complete the invocation.</param>
/// <returns>The actual parameter values.</returns>
public static object[] DetermineParameters(ActionExecutionContext context, ParameterInfo[] requiredParameters)
{
var providedValues = context.Message.Parameters.Select(x => x.Value).ToArray();
var finalValues = new object[requiredParameters.Length];
for (int i = 0; i < requiredParameters.Length; i++)
{
var parameterType = requiredParameters[i].ParameterType;
var parameterValue = providedValues[i];
var parameterAsString = parameterValue as string;
if (parameterAsString != null)
finalValues[i] = CoerceValue(parameterType,
EvaluateParameter(parameterAsString, parameterType, context), context);
else finalValues[i] = CoerceValue(parameterType, parameterValue, context);
}
return finalValues;
}
/// <summary>
/// Try to find a candidate for guard function, having:
/// - a name in the form "CanXXX"
/// - no generic parameters
/// - a bool return type
/// - no parameters or a set of parameters corresponding to the action method
/// </summary>
/// <param name="context">The execution context</param>
/// <returns>A MethodInfo, if found; null otherwise</returns>
private static MethodInfo TryFindGuardMethod(ActionExecutionContext context)
{
var guardName = "Can" + context.Method.Name;
var targetType = context.Target.GetType();
var guard = targetType.GetMethod(guardName);
if (guard == null)
{
return(null);
}
if (guard.ContainsGenericParameters)
{
return(null);
}
if (typeof(bool) != guard.ReturnType)
{
return(null);
}
var guardPars = guard.GetParameters();
var actionPars = context.Method.GetParameters();
if (guardPars.Length == 0)
{
return(guard);
}
if (guardPars.Length != actionPars.Length)
{
return(null);
}
var comparisons = guardPars.Zip(
context.Method.GetParameters(),
(x, y) => x.ParameterType == y.ParameterType
);
if (comparisons.Any(x => !x))
{
return(null);
}
return(guard);
}
/// <summary>
/// Determines the parameters that a method should be invoked with.
/// </summary>
/// <param name="context">The action execution context.</param>
/// <param name="requiredParameters">The parameters required to complete the invocation.</param>
/// <returns>The actual parameter values.</returns>
public static object[] DetermineParameters(ActionExecutionContext context, ParameterInfo[] requiredParameters)
{
var providedParameters = context.Message.Parameters.Select(x => x).ToArray();
var finalValues = new object[requiredParameters.Length];
for (int i = 0; i < requiredParameters.Length; i++)
{
var parameterType = requiredParameters[i].ParameterType;
var parameterValue = providedParameters[i].Value;
var parameterAsString = parameterValue as string;
if (parameterAsString != null)
{
if (providedParameters[i].MustEvaluate)
{
var parameterMembers = Parser.SplitParameter(parameterAsString);
var sourceControl = EvaluateParameter(parameterMembers[0], parameterType, context);
if (parameterMembers[1] == null)
{
finalValues[i] = CoerceValue(parameterType, sourceControl, context);
}
else
{
var sourceProperty = sourceControl.GetType().GetProperty(parameterMembers[1]);
var propertyValue = sourceProperty.GetValue(sourceControl, null);
finalValues[i] = CoerceValue(parameterType, propertyValue, context);
}
}
else
{
finalValues[i] = CoerceValue(parameterType,
EvaluateParameter(parameterAsString, parameterType, context), context);
}
}
else
{
finalValues[i] = CoerceValue(parameterType, parameterValue, context);
}
}
return finalValues;
}
/// <summary>
/// Determines the parameters that a method should be invoked with.
/// </summary>
/// <param name="context">The action execution context.</param>
/// <param name="requiredParameters">The parameters required to complete the invocation.</param>
/// <returns>The actual parameter values.</returns>
public static object[] DetermineParameters(ActionExecutionContext context, ParameterInfo[] requiredParameters)
{
var providedParameters = context.Message.Parameters.Select(x => x).ToArray();
var finalValues = new object[requiredParameters.Length];
for (int i = 0; i < requiredParameters.Length; i++)
{
var parameterType = requiredParameters[i].ParameterType;
var parameterValue = providedParameters[i].Value;
var parameterAsString = parameterValue as string;
if (parameterAsString != null)
{
if (providedParameters[i].MustEvaluate)
{
var parameterMembers = Parser.SplitParameter(parameterAsString);
var sourceControl = EvaluateParameter(parameterMembers[0], parameterType, context);
if (parameterMembers[1] == null)
{
finalValues[i] = CoerceValue(parameterType, sourceControl, context);
}
else
{
var sourceProperty = sourceControl.GetType().GetProperty(parameterMembers[1]);
var propertyValue = sourceProperty.GetValue(sourceControl, null);
finalValues[i] = CoerceValue(parameterType, propertyValue, context);
}
}
else
{
finalValues[i] = CoerceValue(parameterType,
EvaluateParameter(parameterAsString, parameterType, context), context);
}
}
else
{
finalValues[i] = CoerceValue(parameterType, parameterValue, context);
}
}
return(finalValues);
}
/// <summary>
/// Determines the parameters that a method should be invoked with.
/// </summary>
/// <param name="context">The action execution context.</param>
/// <param name="requiredParameters">The parameters required to complete the invocation.</param>
/// <returns>The actual parameter values.</returns>
public static object[] DetermineParameters(ActionExecutionContext context, ParameterInfo[] requiredParameters)
{
var providedValues = context.Message.Parameters.Select(x => x.Value).ToArray();
var finalValues = new object[requiredParameters.Length];
for (int i = 0; i < requiredParameters.Length; i++)
{
var parameterType = requiredParameters[i].ParameterType;
var parameterValue = providedValues[i];
var parameterAsString = parameterValue as string;
if (parameterAsString != null)
{
finalValues[i] = CoerceValue(parameterType,
EvaluateParameter(parameterAsString, parameterType, context), context);
}
else
{
finalValues[i] = CoerceValue(parameterType, parameterValue, context);
}
}
return(finalValues);
}
/// <summary>
/// Executes the result using the specified context.
/// </summary>
/// <param name = "context">The context.</param>
public void Execute(ActionExecutionContext context)
{
this.context = context;
ChildCompleted(null, new ResultCompletionEventArgs());
}
///<summary>
/// Uses the action pipeline to invoke the method.
///</summary>
///<param name="target"> The object instance to invoke the method on. </param>
///<param name="methodName"> The name of the method to invoke. </param>
///<param name="view"> The view. </param>
///<param name="source"> The source of the invocation. </param>
///<param name="eventArgs"> The event args. </param>
///<param name="parameters"> The method parameters. </param>
public static void Invoke(object target, string methodName, DependencyObject view = null,
FrameworkElement source = null, object eventArgs = null, object[] parameters = null)
{
var context = new ActionExecutionContext
{
Target = target,
Method = target.GetType().GetMethod(methodName),
#if WINFORMS || WEBGUI
Message = new ActionMessage(source, null, methodName),
#else
Message = new ActionMessage {
MethodName = methodName
},
#endif
View = view,
Source = source,
EventArgs = eventArgs
};
if (parameters != null)
{
parameters.Apply(x => context.Message.Parameters.Add(x as Parameter ?? new Parameter {Value = x}));
}
ActionMessage.InvokeAction(context);
}
/// <summary>
/// Executes the result using the specified context.
/// </summary>
/// <param name = "context">The context.</param>
public void Execute(ActionExecutionContext context)
{
this.context = context;
ChildCompleted(null, new ResultCompletionEventArgs());
}
/// <summary>
/// Try to find a candidate for guard function, having:
/// - a name in the form "CanXXX"
/// - no generic parameters
/// - a bool return type
/// - no parameters or a set of parameters corresponding to the action method
/// </summary>
/// <param name="context">The execution context</param>
/// <returns>A MethodInfo, if found; null otherwise</returns>
private static MethodInfo TryFindGuardMethod(ActionExecutionContext context)
{
var guardName = "Can" + context.Method.Name;
var targetType = context.Target.GetType();
var guard = targetType.GetMethod(guardName);
if (guard == null) return null;
if (guard.ContainsGenericParameters) return null;
if (typeof (bool) != guard.ReturnType) return null;
var guardPars = guard.GetParameters();
var actionPars = context.Method.GetParameters();
if (guardPars.Length == 0) return guard;
if (guardPars.Length != actionPars.Length) return null;
var comparisons = guardPars.Zip(
context.Method.GetParameters(),
(x, y) => x.ParameterType == y.ParameterType
);
if (comparisons.Any(x => !x))
{
return null;
}
return guard;
}
private void UpdateContext()
{
if (context != null)
context.Dispose();
context = new ActionExecutionContext
{
Message = this,
Source = AssociatedObject
};
PrepareContext(context);
UpdateAvailabilityCore();
}
public void Execute(ActionExecutionContext context)
{
System.Threading.ThreadPool.QueueUserWorkItem(state =>
{
System.Threading.Thread.Sleep(2000);
Response = Guid.NewGuid();
Completed(this, new ResultCompletionEventArgs());
});
}
