public static void Initialize(Dispatcher dispatcher)
{
Overlay.Initialize((background, foreground) =>
Control.Create(self =>
{
var canvas = (FrameworkElement)foreground.NativeHandle;
Fusion.Application.MainThread.Schedule(() =>
{
if (canvas.Parent != null)
{
((Canvas)canvas.Parent).Children.Remove(canvas);
}
});
var foregroundWindow = new OverlayWindow
{
Content = new Canvas
{
Children = { canvas }
},
};
var backgroundElement = background.NativeHandle as FrameworkElement;
if (backgroundElement != null)
{
background.Mount(self);
}
else
{
var dummy = Shapes.Rectangle();
dummy.Mount(self);
backgroundElement = (FrameworkElement)dummy.NativeHandle;
}
Fusion.Application.MainThread.Schedule(() =>
{
foregroundWindow.KeyDown += (sender, args) =>
{
var visual = PresentationSource.FromVisual(backgroundElement);
if (visual == null)
{
return;
}
if (args.Key == System.Windows.Input.Key.DeadCharProcessed)
{
return;
}
backgroundElement.RaiseEvent(new KeyEventArgs(System.Windows.Input.Keyboard.PrimaryDevice, visual, 0, args.Key)
{
RoutedEvent = System.Windows.Input.Keyboard.PreviewKeyDownEvent,
Source = backgroundElement,
});
};
foregroundWindow.KeyUp += (sender, args) =>
{
var visual = PresentationSource.FromVisual(backgroundElement);
if (visual == null)
{
return;
}
if (args.Key == System.Windows.Input.Key.DeadCharProcessed)
{
return;
}
backgroundElement.RaiseEvent(new KeyEventArgs(System.Windows.Input.Keyboard.PrimaryDevice, visual, 0, args.Key)
{
RoutedEvent = System.Windows.Input.Keyboard.PreviewKeyUpEvent,
Source = backgroundElement,
});
};
});
var windowFrames = backgroundElement.ScreenRect(dispatcher);
var intersection = windowFrames.Select(f => f.Item2);
var frame = windowFrames.Select(f => f.Item1);
var bounds = frame.RelativeTo(intersection.Position()).Replay(1).RefCount();
foreground.Mount(
new MountLocation.Mutable
{
IsRooted = self.IsRooted,
AvailableSize = self.AvailableSize,
NativeFrame = bounds.Transpose(),
});
var parentWindow =
self.IsRooted.Switch(isRooted =>
isRooted == false
? Observable.Return(Optional.None <WindowWithOverlays>())
: backgroundElement.GetWindow <WindowWithOverlays>());
parentWindow.SubscribeUsing(tmp =>
tmp.MatchWith(
none: () => Disposable.Empty,
some: backgroundWindow =>
{
var windowLocation = DataBinding.ObservableFromNativeEvent <object>(backgroundWindow, "LocationChanged")
.StartWith(new object())
.Select(_ => dispatcher.InvokeAsync(() => new Point <Points>(backgroundWindow.Left, backgroundWindow.Top)))
.Switch();
dispatcher.Schedule(() =>
{
foregroundWindow.ShowActivated = false;
foregroundWindow.Show();
foregroundWindow.Owner = backgroundWindow;
});
return(Disposable.Combine(
backgroundWindow.AddOverlay("name", foregroundWindow),
Disposable.Create(() => dispatcher.Schedule(foregroundWindow.Hide)),
intersection.MoveTo(windowLocation) /*.Sample(Fusion.Application.PerFrame)*/
.Subscribe(s => dispatcher.Schedule(() =>
{
if (!double.IsInfinity(s.Left()))
{
foregroundWindow.Left = s.Left();
}
if (!double.IsInfinity(s.Top()))
{
foregroundWindow.Top = s.Top();
}
if (!double.IsInfinity(s.Width))
{
foregroundWindow.Width = s.Width.Max(0);
}
if (!double.IsInfinity(s.Height))
{
foregroundWindow.Height = s.Height.Max(0);
}
}))));
}));
return(backgroundElement);
}));
}
public static System.Windows.Window Initialize(Window model)
{
var dispatcher = Fusion.Application.MainThread;
var windowSubject = new BehaviorSubject <Optional <WindowWithOverlays> >(Optional.None());
var menu = new System.Windows.Controls.Menu();
DockPanel.SetDock(menu, Dock.Top);
var contentContainer = new Canvas()
{
// This is needed for native overlays to work
ClipToBounds = true,
};
var panel = new DockPanel()
{
LastChildFill = true,
Children =
{
menu,
contentContainer
}
};
var ret = new FancyWindow(model.Style == WindowStyle.Regular || model.Style == WindowStyle.Fat)
{
Content = panel
};
var focused = new Subject <Unit>();
model.Focused.Execute.Sample(focused).Subscribe(c => c());
ret.Activated += (sender, args) => focused.OnNext(Unit.Default);
var availableSize = DataBinding
.ObservableFromNativeEvent <SizeChangedEventArgs>(contentContainer, "SizeChanged")
.Select(e => e.NewSize.ToFusion())
.Replay(1);
availableSize.Connect();
var content = model.Content;
//.SetNativeWindow(windowSubject)
//.SetDensity(ret.DensityFactor);
var transize = availableSize.Transpose();
content.Mount(
new MountLocation.Mutable
{
AvailableSize = transize,
NativeFrame = ObservableMath.RectangleWithSize(transize),
IsRooted = Observable
.FromEventPattern <DependencyPropertyChangedEventArgs>(ret, "IsVisibleChanged")
.Select(arg => ret.IsVisible)
.Replay(1).RefCount(),
});
content.BindNativeProperty(dispatcher, "Background", model.Background, color =>
menu.Background = ret.Background = new SolidColorBrush(color.ToColor()));
content.BindNativeProperty(dispatcher, "Foreground", model.Foreground, color =>
menu.Foreground = ret.Foreground = new SolidColorBrush(color.ToColor()));
content.BindNativeProperty(dispatcher, "BorderBrush", model.Border.Brush, color =>
ret.BorderBrush = new SolidColorBrush(color.ToColor()));
content.BindNativeProperty(dispatcher, "BorderThickness", model.Border.Thickness, thickness =>
ret.BorderThickness = new System.Windows.Thickness(thickness));
Fusion.Application.MainThread
.InvokeAsync(() => content.NativeHandle)
.ToObservable().OfType <UIElement>()
.Subscribe(nativeContent =>
contentContainer.Children.Add(nativeContent));
var windowState =
model.State
.Or(Property.Default <Optional <WindowState> >())
.Or(WindowState.Normal)
.AutoInvalidate()
.PreventFeedback();
windowState.Subscribe(state => dispatcher.InvokeAsync(() =>
ret.WindowState = state == WindowState.Normal ? System.Windows.WindowState.Normal : System.Windows.WindowState.Maximized));
ret.StateChanged += (sender, args) =>
windowState.Write(
ret.WindowState == System.Windows.WindowState.Maximized
? WindowState.Maximized
: WindowState.Normal);
model.Size.Do(
maybeSize =>
{
var size = maybeSize
.Or(Size.Create <Points>(Double.NaN, Double.NaN))
.AutoInvalidate(TimeSpan.FromSeconds(2))
.PreventFeedback();
bool setByUs = false;
size.Subscribe(s => dispatcher.Schedule(() =>
{
setByUs = true;
ret.Width = (float)s.Width;
var newHeight = s.Height + (TitleBarHeight + menu.ActualHeight);
ret.Height = (float)newHeight;
setByUs = false;
}));
ret.SizeChanged += (s, a) =>
{
if (setByUs)
{
return;
}
var contentSize = new Size <Points>(a.NewSize.Width, a.NewSize.Height - (TitleBarHeight + menu.ActualHeight));
size.Write(contentSize);
};
});
model.Position.Do(
maybePosition =>
{
var pos = maybePosition
.Or(new Point <Points>(double.NaN, double.NaN))
.AutoInvalidate(TimeSpan.FromSeconds(2))
.PreventFeedback();
// TODO: ConnectWhile() ?
bool setByUs = false;
pos.Subscribe(p => dispatcher.Schedule(() =>
{
setByUs = true;
ret.Left = p.X;
ret.Top = p.Y;
setByUs = false;
}));
Fusion.Application.MainThread.Schedule(() =>
{
ret.LocationChanged += (s, args) =>
{
if (setByUs)
{
return;
}
var sender = s as FancyWindow;
if (sender == null)
{
return;
}
pos.Write(new Point <Points>(sender.Left, sender.Top));
};
});
});
model.TopMost.Do(topMost =>
topMost.Subscribe(t => dispatcher.Schedule(() =>
{
ret.Topmost = t;
ret.Show();
})));
model.Size.Do(s =>
s.IsReadOnly.Subscribe(isReadOnly => dispatcher.Schedule(() =>
{
if (isReadOnly)
{
ret.ResizeMode = ResizeMode.NoResize;
ret.WindowStartupLocation = WindowStartupLocation.CenterScreen;
}
})));
var closed = new Subject <Unit>();
ret.Closed += (s, a) => closed.OnNext(Unit.Default);
model.Closed.Execute.Sample(closed).Subscribe(e => e());
model.Title.Subscribe(title => dispatcher.Schedule(() =>
{
ret.Title = model.HideTitle ? "" : title;
}));
model.Menu.Do(m => WindowsMenuBuilder.Populate(m, menu, ret, dispatcher));
DataBinding
.ObservableFromNativeEvent <EventArgs>(ret, "Loaded")
.Subscribe(_ => windowSubject.OnNext(ret));
DataBinding
.ObservableFromNativeEvent <EventArgs>(ret, "LayoutUpdated")
.Select(a => PresentationSource.FromVisual(ret))
.DistinctUntilChanged()
.Subscribe(
presentation =>
{
if (presentation == null)
{
return;
}
var winHandle = new WindowInteropHelper(ret).Handle;
WindowPlacement.SetPlacement(winHandle, WindowPlacement.GetPlacement(winHandle));
});
ret.Closing += (s, a) =>
{
model.Closed.Execute.Take(1).Subscribe(e => e());
ExitIfLastVisibleWindow(ret);
};
ret.IsVisibleChanged += (s, a) =>
{
if (ret.IsVisible == false)
{
ExitIfLastVisibleWindow(ret);
}
};
return(ret);
}
public static void Initialize(Dispatcher dispatcher)
{
Scrolling.Implementation.Factory = (content, darkTheme, supportsOpenGL, zooomAttribs, onBoundsChanged, scrollToRectangle, verticalScrollBarVisible, horizontalScrollBarVisible) =>
Control.Create(self =>
{
var contentNativeFrame = ObservableMath.RectangleWithSize(content.DesiredSize.Max(self.NativeFrame.Size));
content.Mount(
new MountLocation.Mutable
{
IsRooted = self.IsRooted,
NativeFrame = contentNativeFrame,
AvailableSize = self.NativeFrame.Size,
});
var dummyControl = new Canvas();
var view = new ScrollViewer()
{
ClipToBounds = true,
Content = new ContentControl()
{
VerticalAlignment = VerticalAlignment.Top,
HorizontalAlignment = HorizontalAlignment.Left,
Content = dummyControl,
},
HorizontalScrollBarVisibility = horizontalScrollBarVisible ? ScrollBarVisibility.Auto : ScrollBarVisibility.Hidden,
VerticalScrollBarVisibility = verticalScrollBarVisible ? ScrollBarVisibility.Auto : ScrollBarVisibility.Hidden,
};
self.BindNativeProperty(dispatcher, "containerWidth", contentNativeFrame.Size.Width, width => dummyControl.Width = Math.Max(0.0, width));
self.BindNativeProperty(dispatcher, "containerHeight", contentNativeFrame.Size.Height, height => dummyControl.Height = Math.Max(0.0, height));
self.BindNativeProperty(dispatcher, "scrollTarget", scrollToRectangle,
r =>
{
dummyControl.BringIntoView(new Rect(r.Left(), r.Top(), r.Width, r.Height));
});
onBoundsChanged.Do(handler =>
{
DataBinding.ObservableFromNativeEvent <EventArgs>(view, "ScrollChanged")
.CombineLatest(
contentNativeFrame.Transpose().DistinctUntilChanged(),
(_, contentFrame) => new ScrollBounds(
Rectangle.FromPositionSize <Points>(
view.HorizontalOffset,
view.VerticalOffset,
view.ViewportWidth,
view.ViewportHeight),
contentFrame))
.DistinctUntilChanged()
.Subscribe(handler);
});
self.BindNativeDefaults(view, dispatcher);
var child = (FrameworkElement)content.NativeHandle;
dummyControl.Children.Add(child);
return(view);
});
}
public IUnoHostControl Create(
AbsoluteFilePath assemblyPath,
Command onFocused,
Menu contextMenu,
AbsoluteFilePath userDataPath,
Action <IUnoHostControl> initialize,
Action <OpenGlVersion> gotVersion,
params string[] arguments)
{
UnoHostProcess.Application = ExternalApplication.FromNativeExe(typeof(UnoHostControlFactory).Assembly.GetCodeBaseFilePath());
var dispatcher = Fusion.Application.MainThread;
var messagesToHost = new Subject <IBinaryMessage>();
var unoHost = UnoHostProcess.Spawn(assemblyPath, messagesToHost, userDataPath, /*TODO*/ new List <string>());
unoHost.Process.Subscribe(process => new Job().AddProcess(process.Id));
var windowCreated = unoHost.Receieve(WindowCreatedMessage.TryParse).Replay(1);
windowCreated.Connect();
var control = new UnoHostControlImplementation()
{
_disposable = unoHost,
Messages = unoHost.Messages,
MessagesTo = messagesToHost,
Process = unoHost.Process,
};
control.Control =
Fusion.Control.Create(location =>
{
var dummyControl = Shapes.Rectangle();
dummyControl.Mount(location);
var dummyElement = (FrameworkElement)dummyControl.NativeHandle;
location.IsRooted
.ObserveOn(dispatcher)
.SubscribeUsing(rooted => rooted
? ContextMenuImplementation.AddMenuTemporarily(dummyElement, contextMenu, dispatcher)
: Disposable.Empty);
var mainWindow = DataBinding
.ObservableFromNativeEvent <object>(dummyElement, "LayoutUpdated")
.StartWith(new object())
.Select(_ =>
{
var hwndSource1 = PresentationSource.FromVisual(dummyElement);
if (hwndSource1 == null)
{
return(Optional.None <System.Windows.Window>());
}
var window = hwndSource1.RootVisual as System.Windows.Window;
if (window == null)
{
return(Optional.None <System.Windows.Window>());
}
return(Optional.Some(window));
})
.DistinctUntilChanged()
.NotNone()
.Replay(1).RefCount();
var mainWindowHandle = mainWindow.Select(currentWindow =>
{
var hwndSource = (HwndSource)PresentationSource.FromVisual(currentWindow);
if (hwndSource == null)
{
return(Optional.None());
}
return(Optional.Some(hwndSource.Handle));
})
.NotNone()
.Replay(1);
mainWindowHandle.Connect();
var focused = unoHost.Receieve(WindowFocusMessage.TryParse)
.Where(focusState => focusState == FocusState.Focused);
focused.CombineLatest(mainWindowHandle, (a, b) => b)
.ObserveOn(dispatcher)
.Subscribe(t => WinApi.ShowWindow(t, WinApi.ShowWindowEnum.ShowNoActivate));
unoHost.Receieve(WindowContextMenuMessage.TryParse)
.ObserveOn(dispatcher)
.Subscribe(t => dummyElement.ContextMenu.IsOpen = t);
unoHost.Receieve(WindowMouseScrollMessage.TryParse)
.ObserveOn(dispatcher)
.Subscribe(deltaWheel =>
{
var delta = deltaWheel;
var routedEvent = Mouse.MouseWheelEvent;
dummyElement.RaiseEvent(
new MouseWheelEventArgs(
Mouse.PrimaryDevice,
Environment.TickCount, delta)
{
RoutedEvent = routedEvent,
Source = dummyElement
});
});
// This is a fix for a commit that "fixed" handling the shortcuts, but broke just
// plain typing in a TextInput.
// See https://github.com/fusetools/Fuse/issues/3342
// and https://github.com/fusetools/Fuse/issues/3887
// Workaround to fix a problem with handling shortcut keys in the application while
// the viewport has focus and the user is typing in an TextInput in the app.
// We have give the main window focus to handle the shortcut keys, but then
// the viewport will lose focus. Current work around is to only do this when
// the user presses down Ctrl.
unoHost.Receieve(WindowKeyDown.TryParse)
.WithLatestFromBuffered(mainWindow, (t, w) => new { Keys = t, Window = w })
.ObserveOn(dispatcher)
.Subscribe(t =>
{
var modifiers = System.Windows.Input.Keyboard.PrimaryDevice.Modifiers;
var alt = modifiers.HasFlag(System.Windows.Input.ModifierKeys.Alt);
// Activate the main window if the Ctrl-key was pressed.
// Ctrl + Alt means AltGr which we want to keep in the Uno host e.g. for the '@' key on Nordic keyboards.
if (t.Keys == Keys.ControlKey && !alt)
{
t.Window.Activate();
}
});
focused
.WithLatestFromBuffered(onFocused.Execute.ConnectWhile(dummyControl.IsRooted), (_, c) => c)
.Subscribe(c => c());
var overlayForm = new OverlayForm();
Observable
.CombineLatest(windowCreated, mainWindowHandle,
(viewportHwnd, mainHwnd) => new
{
ViewportHwnd = viewportHwnd,
MainHwnd = mainHwnd,
})
.ObserveOn(dispatcher)
.SubscribeUsing(t =>
overlayForm.BindTo(t.ViewportHwnd, t.MainHwnd, dummyControl, dummyElement.GetDpi()));
unoHost.Messages
.SelectMany(m => m.TryParse(Ready.MessageType, Ready.ReadDataFrom))
.Take(1)
.Subscribe(_ => initialize(control));
unoHost.Messages
.SelectSome(OpenGlVersionMessage.TryParse)
.Subscribe(gotVersion);
unoHost.Messages.Connect();
return(dummyElement);
});
return(control);
}
static void BindText(
this System.Windows.Controls.TextBox control,
IProperty <string> value,
IObservable <bool> isRooted,
bool isMultiline)
{
bool valueSetByUser = true;
bool hasUnsavedChanges = false;
value = value
.ConnectWhile(isRooted)
.DistinctUntilChangedOrSet();
DataBinding
.ObservableFromNativeEvent <EventArgs>(control, "TextChanged")
.Subscribe(_ =>
{
if (!valueSetByUser)
{
return;
}
hasUnsavedChanges = true;
value.Write(control.Text, save: false);
});
value.Subscribe(v =>
Fusion.Application.MainThread.Schedule(() =>
{
valueSetByUser = false;
try
{
control.Text = v;
}
finally
{
valueSetByUser = true;
}
}));
control.LostKeyboardFocus += (s, a) =>
{
if (!hasUnsavedChanges)
{
return;
}
value.Write(control.Text, save: true);
hasUnsavedChanges = false;
};
if (isMultiline == false)
{
control.KeyDown += (s, a) =>
{
if (a.Key != System.Windows.Input.Key.Return)
{
return;
}
if (!hasUnsavedChanges)
{
return;
}
value.Write(control.Text, save: true);
hasUnsavedChanges = false;
};
}
}
