private void OnWalkerFoundActivity(Walker walker, WalkerEventArgs eventArgs)
{
TActivity foundActivity = eventArgs.CurrentActivity as TActivity;
if (foundActivity != null)
{
if (this.matchMaker((TActivity)owner.Activity, foundActivity))
{
matchingActivityDesigner.Add(GetDesigner(eventArgs.CurrentActivity));
}
}
}
public void Walk(Activity seedActivity, bool walkChildren)
{
Queue queue = new Queue();
queue.Enqueue(seedActivity);
while (queue.Count > 0)
{
Activity activity = queue.Dequeue() as Activity;
if (FoundActivity != null)
{
WalkerEventArgs args = new WalkerEventArgs(activity);
FoundActivity(this, args);
if (args.Action == WalkerAction.Abort)
return;
if (args.Action == WalkerAction.Skip)
continue;
}
if (FoundProperty != null)
{
if (!WalkProperties(activity))
return;
}
if (walkChildren && activity is CompositeActivity)
{
if (useEnabledActivities)
{
foreach (Activity activity2 in Helpers.GetAllEnabledActivities((CompositeActivity)activity))
queue.Enqueue(activity2);
}
else
{
foreach (Activity activity2 in ((CompositeActivity)activity).Activities)
queue.Enqueue(activity2);
}
}
}
}
public bool WalkProperties(Activity activity, object obj)
{
Activity currentActivity = obj as Activity;
PropertyInfo[] props = obj.GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
foreach (PropertyInfo prop in props)
{
// !!Work around: no indexer property walking
if (prop.GetIndexParameters() != null && prop.GetIndexParameters().Length > 0)
continue;
DesignerSerializationVisibility visibility = GetSerializationVisibility(prop);
if (visibility == DesignerSerializationVisibility.Hidden)
continue;
//Try to see if we have dynamic property associated with the object on the same object
//if so then we should compare if the dynamic property values match with the property type
//if not we bail out
object propValue = null;
DependencyProperty dependencyProperty = DependencyProperty.FromName(prop.Name, obj.GetType());
if (dependencyProperty != null && currentActivity != null)
{
if (currentActivity.IsBindingSet(dependencyProperty))
propValue = currentActivity.GetBinding(dependencyProperty);
else
propValue = currentActivity.GetValue(dependencyProperty);
}
else
{
try
{
propValue = prop.CanRead ? prop.GetValue(obj, null) : null;
}
catch
{
// Eat exceptions that occur while invoking the getter.
}
}
if (FoundProperty != null)
{
WalkerEventArgs args = new WalkerEventArgs(activity, propValue, prop, obj);
FoundProperty(this, args);
if (args.Action == WalkerAction.Skip)
continue;
else if (args.Action == WalkerAction.Abort)
return false;
}
if (propValue is IList)
{
//We do not need to reflect on the properties of the list
foreach (object childObj in (IList)propValue)
{
if (FoundProperty != null)
{
WalkerEventArgs args = new WalkerEventArgs(activity, childObj, null, propValue);
FoundProperty(this, args);
if (args.Action == WalkerAction.Skip)
continue;
else if (args.Action == WalkerAction.Abort)
return false;
}
if (childObj != null && IsBrowsableType(childObj.GetType()))
{
if (!WalkProperties(activity, childObj))
return false;
}
}
}
else if (propValue != null && IsBrowsableType(propValue.GetType()))
{
if (!WalkProperties(activity, propValue))
return false;
}
}
return true;
}
private void Walker_DirectoryChanged(object sender, WalkerEventArgs e)
{
LoadDirectory(e.OldPath != e.NewPath);
}
