private bool RemoveDependencyInternal(Action <string> action)
{
var toRemove = new List <PropertyPathElement>();
foreach (var value in Dependency)
{
var propertyRules = value.Value;
for (int j = 0; j < propertyRules.Count; j++)
{
if (propertyRules[j].Action == action)
{
propertyRules.RemoveAt(j);
j--;
}
}
if (propertyRules.Count == 0)
{
toRemove.Add(value.Key);
}
}
foreach (var key in toRemove)
{
Dependency.Remove(key);
}
foreach (var kp in SubtreeDependency)
{
var node = kp.Value;
if (node.RemoveDependency(action))
{
toRemove.Add(kp.Key);
}
}
foreach (var key in toRemove)
{
SubtreeDependency.Remove(key);
}
if (Dependency.Count == 0)
{
// Unsubscribe from event
foreach (var target in Targets.Values)
{
foreach (var t in target)
{
UnwireObject(t);
UnwireCollectionObject(t);
}
}
}
return(SubtreeDependency.Count == 0 && Dependency.Count == 0);
}
void OnPropertyChanged(object sender, PropertyChangedEventArgs e)
{
NotifyRules(e.PropertyName);
DependencyNode property;
if (SubtreeDependency.TryGetValue(e.PropertyName, out property))
{
property.Resubscribe(new[] { GetPropertyObject(sender, e.PropertyName) }, sender);
}
}
void OnCollectionElementChanged(object sender, PropertyChangedEventArgs e)
{
var propertyName = "$" + e.PropertyName;
NotifyRules(propertyName);
DependencyNode property;
if (SubtreeDependency.TryGetValue(propertyName, out property))
{
property.Resubscribe(new[] { GetPropertyObject(sender, e.PropertyName) }, sender);
}
}
private void AddPropertyDependencyInternal(IEnumerable <PropertyPathElement> propertyPath,
ActionWithTag actionWithTag)
{
var propertyName = propertyPath.First();
// Add property dependency
PropertyPathElement propertyPathElement = propertyName;
Dependency.GetOrAdd(propertyPathElement).Add(actionWithTag);
if (propertyPath.Count() > 1)
{
var dp = SubtreeDependency.GetOrAdd(propertyPathElement);
dp.AddPropertyDependencyInternal(propertyPath.Skip(1), actionWithTag);
}
}
