public void Unsubscribe(IStyleActivatorSink sink)
{
if (_sink != sink)
{
throw new AvaloniaInternalException("StyleActivatorSink is not subscribed.");
}
_sink = null;
Deinitialize();
}
public void Subscribe(IStyleActivatorSink sink, int tag = 0)
{
if (_sink is null)
{
_sink = sink;
_tag = tag;
_value = null;
Initialize();
}
else
{
throw new AvaloniaInternalException("Cannot subscribe to a StyleActivator more than once.");
}
}
