public static ICell <T3> Merge <T, T2, T3>(this ICell <T> cell, ICell <T2> cell2, Func <T, T2, T3> func)
{
Func <T3> curr = () => func(cell.value, cell2.value);
return(new AnonymousCell <T3>((Action <T3> reaction, Priority p) =>
{
var disp = new CellJoinDisposable <T3>();
disp.lastValue = func(cell.value, cell2.value);
disp.Add(cell.ListenUpdates(val =>
{
T3 newCurr = curr();
if (!object.Equals(newCurr, disp.lastValue))
{
disp.lastValue = newCurr;
reaction(newCurr);
}
}, p));
disp.Add(cell2.ListenUpdates(val =>
{
T3 newCurr = curr();
if (!object.Equals(newCurr, disp.lastValue))
{
disp.lastValue = newCurr;
reaction(newCurr);
}
}, p));
return disp;
}, curr));
}
public static ICell <IEnumerable <T> > ToCellOfCollection <T>(this IEnumerable <ICell <T> > cells)
{
Func <IEnumerable <T> > values = () => cells.Select(cell => cell.value);
return(new AnonymousCell <IEnumerable <T> >((Action <IEnumerable <T> > reaction, Priority p) =>
{
CellJoinDisposable <T> group = new CellJoinDisposable <T> {
};
foreach (var cell in cells)
{
group.Add(cell.ListenUpdates(_ => reaction(values()), p));
}
return group;
}, values));
}