private async Task AssignInput <T>(T provider) where T : class, IInputProvider
{
if (_busy)
{
return;
}
_busy = true;
try {
var waiting = GetWaiting() as BaseEntry <T>;
if (waiting == null)
{
return;
}
if (waiting.Input == provider)
{
waiting.Waiting = false;
return;
}
var existing = Entries.OfType <BaseEntry <T> >().Where(x => x.Input == provider).ToList();
if (existing.Any())
{
var solution = ConflictResolver == null ? AcControlsConflictSolution.ClearPrevious :
await ConflictResolver.Resolve(provider.DisplayName, existing.Select(x => x.DisplayName));
switch (solution)
{
case AcControlsConflictSolution.Cancel:
return;
case AcControlsConflictSolution.Flip:
foreach (var entry in existing)
{
entry.Input = waiting.Input;
}
break;
case AcControlsConflictSolution.ClearPrevious:
foreach (var entry in existing)
{
entry.Clear();
}
break;
}
}
waiting.Input = provider;
} finally {
_busy = false;
}
}