internal void AddEvent <T>(Action <object, T> item, EventState state, EventStack <T> stack) where T : EventArgs
{
//If the event hasn't been added, add it and mark it as being added
if (!state.EventAdded)
{
lock (lockEvents)
{
stack.Push(item);
state.EventAdded = true;
}
}
}
internal void RemoveEvent <T>(EventState state, EventStack <T> stack, bool resetState) where T : EventArgs
{
if (!state.EventRemoved && state.EventAdded)
{
lock (lockEvents)
{
stack.Pop();
state.EventRemoved = true;
}
}
if (resetState)
{
state.EventAdded = false;
state.EventRemoved = false;
}
}
internal void RemoveEvent <T>(EventState state, EventStack <T> stack, bool resetState) where T : EventArgs
{
//If the event hasn't been removed yet and was actually added, remove it
if (!state.EventRemoved && state.EventAdded)
{
//Remove the event from the stack, and mark it as removed
lock (lockEvents)
{
stack.Pop();
state.EventRemoved = true;
}
}
//The event was never added or removed in the first place. This allows us to re-add/remove
//events again
if (resetState)
{
state.EventAdded = false;
state.EventRemoved = false;
}
}