public RegionSelectorViewModel(
[NotNull] ISelectionAdornerViewModel selectionAdorner,
[NotNull][Dependency(WellKnownSchedulers.UI)] IScheduler uiScheduler,
[NotNull][Dependency(WellKnownSchedulers.Background)] IScheduler bgScheduler)
{
SelectionAdorner = selectionAdorner.AddTo(Anchors);
windowSeeker = new TaskWindowSeeker
{
SkipNotVisibleWindows = true
};
var refreshRequest = new Subject <Unit>();
SelectionAdorner.WhenAnyValue(x => x.MousePosition, x => x.Owner).ToUnit()
.Merge(refreshRequest)
.Select(x => new { SelectionAdorner.MousePosition, SelectionAdorner.Owner })
.Where(x => x.Owner != null)
.Sample(ThrottlingPeriod, bgScheduler)
.ObserveOn(uiScheduler)
.Select(x => x.MousePosition.ToScreen(x.Owner))
.Select(x => new Rectangle(x.X, x.Y, 1, 1))
.Select(ToRegionResult)
.Do(x => Log.Debug($"Selection candidate: {x}"))
.Subscribe(x => SelectionCandidate = x)
.AddTo(Anchors);
refreshRequest
.Subscribe(() => windowSeeker.Refresh())
.AddTo(Anchors);
Observable.Timer(DateTimeOffset.Now, TimeSpan.FromSeconds(1), bgScheduler).ToUnit()
.Subscribe(refreshRequest)
.AddTo(Anchors);
}
private void RefreshWindowList()
{
windowSeeker.Refresh();
var existingWindows = windowListSource.Items.ToArray();
var itemsToAdd = windowSeeker.Windows.Except(existingWindows, WindowComparer).ToArray();
var itemsToRemove = existingWindows.Except(windowSeeker.Windows, WindowComparer).ToArray();
windowListSource.RemoveMany(itemsToRemove);
windowListSource.AddRange(itemsToAdd);
}