/// <summary>
/// Initializes a new instance of the <see cref="TopLevel"/> class.
/// </summary>
/// <param name="impl">The platform-specific window implementation.</param>
/// <param name="dependencyResolver">
/// The dependency resolver to use. If null the default dependency resolver will be used.
/// </param>
public TopLevel(ITopLevelImpl impl, IPerspexDependencyResolver dependencyResolver)
{
if (impl == null)
{
throw new InvalidOperationException(
"Could not create window implementation: maybe no windowing subsystem was initialized?");
}
PlatformImpl = impl;
dependencyResolver = dependencyResolver ?? PerspexLocator.Current;
var renderInterface = TryGetService <IPlatformRenderInterface>(dependencyResolver);
var styler = TryGetService <IStyler>(dependencyResolver);
_accessKeyHandler = TryGetService <IAccessKeyHandler>(dependencyResolver);
_inputManager = TryGetService <IInputManager>(dependencyResolver);
_keyboardNavigationHandler = TryGetService <IKeyboardNavigationHandler>(dependencyResolver);
LayoutManager = TryGetService <ILayoutManager>(dependencyResolver);
_renderQueueManager = TryGetService <IRenderQueueManager>(dependencyResolver);
(TryGetService <ITopLevelRenderer>(dependencyResolver) ?? new DefaultTopLevelRenderer()).Attach(this);
PlatformImpl.SetInputRoot(this);
PlatformImpl.Activated = HandleActivated;
PlatformImpl.Deactivated = HandleDeactivated;
PlatformImpl.Closed = HandleClosed;
PlatformImpl.Input = HandleInput;
PlatformImpl.Resized = HandleResized;
Size clientSize = ClientSize = PlatformImpl.ClientSize;
if (LayoutManager != null)
{
LayoutManager.Root = this;
LayoutManager.LayoutNeeded.Subscribe(_ => HandleLayoutNeeded());
LayoutManager.LayoutCompleted.Subscribe(_ => HandleLayoutCompleted());
}
if (_keyboardNavigationHandler != null)
{
_keyboardNavigationHandler.SetOwner(this);
}
if (_accessKeyHandler != null)
{
_accessKeyHandler.SetOwner(this);
}
styler?.ApplyStyles(this);
GetObservable(ClientSizeProperty).Skip(1).Subscribe(x => PlatformImpl.ClientSize = x);
GetObservable(PointerOverElementProperty)
.Select(
x => (x as InputElement)?.GetObservable(CursorProperty) ?? Observable.Empty <Cursor>())
.Switch().Subscribe(cursor => PlatformImpl.SetCursor(cursor?.PlatformCursor));
}
/// <summary>
/// Initializes a new instance of the <see cref="TopLevel"/> class.
/// </summary>
/// <param name="impl">The platform-specific window implementation.</param>
/// <param name="dependencyResolver">
/// The dependency resolver to use. If null the default dependency resolver will be used.
/// </param>
public TopLevel(ITopLevelImpl impl, IAvaloniaDependencyResolver dependencyResolver)
{
if (impl == null)
{
throw new InvalidOperationException(
"Could not create window implementation: maybe no windowing subsystem was initialized?");
}
PlatformImpl = impl;
dependencyResolver = dependencyResolver ?? AvaloniaLocator.Current;
var styler = TryGetService <IStyler>(dependencyResolver);
_accessKeyHandler = TryGetService <IAccessKeyHandler>(dependencyResolver);
_inputManager = TryGetService <IInputManager>(dependencyResolver);
_keyboardNavigationHandler = TryGetService <IKeyboardNavigationHandler>(dependencyResolver);
_renderQueueManager = TryGetService <IRenderQueueManager>(dependencyResolver);
_applicationLifecycle = TryGetService <IApplicationLifecycle>(dependencyResolver);
(dependencyResolver.GetService <ITopLevelRenderer>() ?? new DefaultTopLevelRenderer()).Attach(this);
PlatformImpl.SetInputRoot(this);
PlatformImpl.Activated = HandleActivated;
PlatformImpl.Deactivated = HandleDeactivated;
PlatformImpl.Closed = HandleClosed;
PlatformImpl.Input = HandleInput;
PlatformImpl.Resized = HandleResized;
PlatformImpl.ScalingChanged = HandleScalingChanged;
PlatformImpl.PositionChanged = HandlePositionChanged;
_keyboardNavigationHandler?.SetOwner(this);
_accessKeyHandler?.SetOwner(this);
styler?.ApplyStyles(this);
ClientSize = PlatformImpl.ClientSize;
this.GetObservable(ClientSizeProperty).Skip(1).Subscribe(x => PlatformImpl.ClientSize = x);
this.GetObservable(PointerOverElementProperty)
.Select(
x => (x as InputElement)?.GetObservable(CursorProperty) ?? Observable.Empty <Cursor>())
.Switch().Subscribe(cursor => PlatformImpl.SetCursor(cursor?.PlatformCursor));
if (_applicationLifecycle != null)
{
_applicationLifecycle.OnExit += OnApplicationExiting;
}
}
