public void Setup(CompositeDisposable cd, IEngine engine)
{
engine.Worker(cd, Dep.On(Register, Unregister), () =>
{
var registered = registeredScenes.AsWriteProxy();
for (int i = 0, n = Register.Count; i < n; ++i)
{
registered.Add(Register[i]);
}
for (int i = 0, n = Unregister.Count; i < n; ++i)
{
// TODO Should be RemoveExact
registered.Remove(Unregister[i]);
}
registered.Commit();
});
var watcher = engine.Wa(cd, registeredScenes, scene => scene.State);
engine.Worker(cd, Dep.On(watcher, Unregister), () =>
{
var active = ActiveScenes.AsWriteProxy();
for (int i = 0, n = Unregister.Count; i < n; ++i)
{
active.Remove(Unregister[i]);
}
for (int i = 0, n = registeredScenes.Count; i < n; ++i)
{
var scene = registeredScenes[i];
var state = scene.State.Read();
if ((state == SceneState.Opened || state == SceneState.Opening) &&
!active.Contains(scene))
{
active.Add(scene);
}
else if (state == SceneState.Closed && active.Contains(scene))
{
active.Remove(scene);
}
}
active.Commit();
});
engine.Worker(cd, Dep.On(Back), () =>
{
bool isSystem;
if (!Back.TryRead(out isSystem) || ActiveScenes.Count <= 1)
{
return;
}
ActiveScenes[ActiveScenes.Count - 1].Back.Fire(isSystem);
});
}
