protected override SelectorMatch Evaluate(IStyleable control, bool subscribe)
{
IStyleable templatedParent = control.TemplatedParent as IStyleable;
if (templatedParent == null)
{
throw new InvalidOperationException(
"Cannot call Template selector on control with null TemplatedParent.");
}
return(_parent.Match(templatedParent, subscribe) ?? SelectorMatch.True);
}
protected override SelectorMatch Evaluate(IStyleable control, bool subscribe)
{
var controlParent = ((ILogical)control).LogicalParent;
if (controlParent != null)
{
return(_parent.Match((IStyleable)controlParent, subscribe));
}
else
{
return(SelectorMatch.False);
}
}
protected override SelectorMatch Evaluate(IStyleable control, bool subscribe)
{
ILogical c = (ILogical)control;
List <IObservable <bool> > descendantMatches = new List <IObservable <bool> >();
while (c != null)
{
c = c.LogicalParent;
if (c is IStyleable)
{
var match = _parent.Match((IStyleable)c, subscribe);
if (match.ImmediateResult != null)
{
if (match.ImmediateResult == true)
{
return(SelectorMatch.True);
}
}
else
{
descendantMatches.Add(match.ObservableResult);
}
}
}
if (descendantMatches.Count > 0)
{
return(new SelectorMatch(StyleActivator.Or(descendantMatches)));
}
else
{
return(SelectorMatch.False);
}
}