private WeakMulticastDelegate Remove(Delegate realDelegate)
{
WeakMulticastDelegate result;
if (this.Equals(realDelegate))
{
result = this.prev;
}
else
{
WeakMulticastDelegate current = this.prev;
WeakMulticastDelegate last = this;
while (current != null)
{
if (current.Equals(realDelegate))
{
last.prev = current.prev;
current.prev = null;
break;
}
last = current;
current = current.prev;
}
result = this;
}
return(result);
}
/// <summary>
/// Combines this weak multicast delegate with a normal delegate
/// Makes sure the delegate target has not been added yet
/// </summary>
/// <param name="realDelegate">the real delegate</param>
/// <returns>the new weak multicast delegate</returns>
private WeakMulticastDelegate CombineUnique(Delegate realDelegate)
{
bool found = Equals(realDelegate);
if (!found && prev != null)
{
WeakMulticastDelegate curNode = prev;
while (!found && curNode != null)
{
if (curNode.Equals(realDelegate))
{
found = true;
}
curNode = curNode.prev;
}
}
return(found ? this : Combine(realDelegate));
}
private WeakMulticastDelegate CombineUnique(Delegate realDelegate)
{
bool flag = this.Equals(realDelegate);
if (!flag && this.prev != null)
{
WeakMulticastDelegate weakMulticastDelegate = this.prev;
while (!flag && weakMulticastDelegate != null)
{
if (weakMulticastDelegate.Equals(realDelegate))
{
flag = true;
}
weakMulticastDelegate = weakMulticastDelegate.prev;
}
}
if (!flag)
{
return(this.Combine(realDelegate));
}
return(this);
}
private WeakMulticastDelegate Remove(Delegate realDelegate)
{
if (this.Equals(realDelegate))
{
return(this.prev);
}
WeakMulticastDelegate weakMulticastDelegate = this.prev;
WeakMulticastDelegate weakMulticastDelegate2 = this;
while (weakMulticastDelegate != null)
{
if (weakMulticastDelegate.Equals(realDelegate))
{
weakMulticastDelegate2.prev = weakMulticastDelegate.prev;
weakMulticastDelegate.prev = null;
break;
}
weakMulticastDelegate2 = weakMulticastDelegate;
weakMulticastDelegate = weakMulticastDelegate.prev;
}
return(this);
}