protected virtual bool GoToStateCore(Control control, IFrameworkElement templateRoot, string stateName, VisualStateGroup group, VisualState state, bool useTransitions)
{
#if IS_UNO
if (_trace.IsEnabled)
{
_trace.WriteEvent(
TraceProvider.StoryBoard_GoToState,
EventOpcode.Send,
new[] {
control.GetType()?.ToString(),
control?.GetDependencyObjectId().ToString(),
stateName,
useTransitions ? "UseTransitions" : "NoTransitions"
}
);
}
#endif
var originalState = group.CurrentState;
if (VisualState.Equals(originalState, state))
{
// Already in the right state
return(true);
}
RaiseCurrentStateChanging(group, originalState, state);
// The visual state group must not keep a hard reference to the control,
// otherwise it may leak.
var wr = Uno.UI.DataBinding.WeakReferencePool.RentWeakReference(this, control);
group.GoToState(
control,
state,
originalState,
useTransitions,
() =>
{
var innerControl = wr?.Target as Control;
if (innerControl != null)
{
RaiseCurrentStateChanged(group, originalState, state);
}
}
);
return(true);
}
