[FriendAccessAllowed] // Built into Core, also used by Framework.
internal void RemoveLoadedOrUnloadedCallback(LoadedOrUnloadedOperation op)
{
Debug.Assert(op != null);
// cancel the operation - this prevents it from running even if it has
// already been copied into the local array in FireLoadedPendingCallbacks
op.Cancel();
if (_loadedOrUnloadedPendingOperations != null)
{
for (int i=0; i<_loadedOrUnloadedPendingOperations.Count; i++)
{
LoadedOrUnloadedOperation operation = _loadedOrUnloadedPendingOperations[i];
if (operation == op)
{
_loadedOrUnloadedPendingOperations.RemoveAt(i);
break;
}
}
}
}
[FriendAccessAllowed] // Built into Core, also used by Framework.
internal LoadedOrUnloadedOperation AddLoadedOrUnloadedCallback(
DispatcherOperationCallback callback,
DependencyObject target)
{
LoadedOrUnloadedOperation op = new LoadedOrUnloadedOperation(callback, target);
if (_loadedOrUnloadedPendingOperations == null)
{
_loadedOrUnloadedPendingOperations = new FrugalObjectList<LoadedOrUnloadedOperation>(1);
}
_loadedOrUnloadedPendingOperations.Add(op);
return op;
}