public HotkeyIsActiveTrigger(
[NotNull] IHotkeyConverter hotkeyConverter,
[NotNull] IKeyboardEventsSource eventSource,
[NotNull][Dependency(WellKnownWindows.MainWindow)] IWindowTracker mainWindowTracker,
[NotNull][Dependency(WellKnownSchedulers.UI)] IScheduler uiScheduler)
{
this.hotkeyConverter = hotkeyConverter;
Disposable
.Create(() => Log.Debug($"Disposing HotkeyTrigger, gesture: {Hotkey} (mode: {HotkeyMode})"))
.AddTo(Anchors);
IsActive = true;
this.RaiseWhenSourceValue(x => x.Properties, this, x => x.IsActive).AddTo(Anchors);
this.WhenAnyValue(x => x.Hotkey)
.Select(hotkey => hotkey == null ? Observable.Empty <HotkeyData>() : BuildHotkeySubscription(eventSource))
.Switch()
.DistinctUntilChanged(x => new { x.Hotkey, x.KeyDown })
.Where(
hotkeyData =>
{
/*
* This method MUST be executed on the same thread which emitted Key/Mouse event
* otherwise .Handled value will be ignored due to obvious concurrency reasons
*/
if (mainWindowTracker.ActiveProcessId != CurrentProcessId)
{
Log.Debug($"Application is NOT active, processing hotkey {hotkeyData.Hotkey} (isDown: {hotkeyData.KeyDown}, suppressKey: {suppressKey}, configuredKey: {Hotkey}, mode: {HotkeyMode})");
if (suppressKey)
{
hotkeyData.MarkAsHandled();
}
return(true);
}
Log.Debug($"Application is active, skipping hotkey {hotkeyData.Hotkey} (isDown: {hotkeyData.KeyDown}, suppressKey: {suppressKey}, configuredKey: {Hotkey}, mode: {HotkeyMode})");
return(false);
})
.Subscribe(
hotkeyData =>
{
Log.Debug($"Hotkey {hotkeyData.Hotkey} pressed, state: {(hotkeyData.KeyDown ? "down" : "up")}, suppressed: {suppressKey}");
if (HotkeyMode == HotkeyMode.Click)
{
if (hotkeyData.KeyDown)
{
IsActive = !IsActive;
}
}
else
{
IsActive = !IsActive;
}
},
Log.HandleUiException)
.AddTo(Anchors);
}
public SelectionAdornerViewModel(
[NotNull] IKeyboardEventsSource keyboardEventsSource,
[NotNull][Dependency(WellKnownSchedulers.UI)] IScheduler uiScheduler,
[NotNull][Dependency(WellKnownSchedulers.Background)] IScheduler bgScheduler)
{
this.keyboardEventsSource = keyboardEventsSource;
this.uiScheduler = uiScheduler;
this.RaiseWhenSourceValue(x => x.ScreenMousePosition, this, x => x.MousePosition).AddTo(Anchors);
this.RaiseWhenSourceValue(x => x.ScreenSelection, this, x => x.Selection).AddTo(Anchors);
this.WhenAnyProperty(x => x.Selection, x => x.MousePosition, x => x.Owner)
.Where(x => Owner != null)
.Sample(DesiredRedrawRate, bgScheduler) // MouseMove generates thousands of events
.ObserveOn(uiScheduler)
.Subscribe(Redraw)
.AddTo(Anchors);
}
