public static BackgroundCallbacks getInstance()
{
#if UNITY_WEBGL
return(null);
#endif
if (_instance == null)
{
_instance = new BackgroundCallbacks(2);
}
return(_instance);
}
internal UIWidgetsCoroutine(IEnumerator routine, Window window, bool isBackground = false)
{
D.assert(routine != null);
D.assert(window != null);
this._routine = routine;
this._window = window;
this._isBackground = isBackground;
if (isBackground && BackgroundCallbacks.getInstance() != null)
{
this._unhook = BackgroundCallbacks.getInstance().addCallback(this._moveNext);
}
else
{
this._unhook = this._window.run(TimeSpan.Zero, this._moveNext, periodic: true);
this._moveNext(true); // try to run the first enumeration in the current loop.
}
}
