/// <summary>
/// Tries to get a service from an <see cref="IPerspexDependencyResolver"/>, throwing an
/// exception if not found.
/// </summary>
/// <typeparam name="T">The service type.</typeparam>
/// <param name="resolver">The resolver.</param>
/// <returns>The service.</returns>
private static T TryGetService <T>(IPerspexDependencyResolver resolver) where T : class
{
var result = resolver.GetService <T>();
System.Diagnostics.Debug.WriteLineIf(
result == null,
$"Could not create {typeof(T).Name} : maybe Application.RegisterServices() wasn't called?");
return(result);
}
/// <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>
/// Tries to get a service from an <see cref="IPerspexDependencyResolver"/>, throwing an
/// exception if not found.
/// </summary>
/// <typeparam name="T">The service type.</typeparam>
/// <param name="resolver">The resolver.</param>
/// <returns>The service.</returns>
private T TryGetService <T>(IPerspexDependencyResolver resolver) where T : class
{
var result = resolver.GetService <T>();
if (result == null)
{
Logger.Warning(
LogArea.Control,
this,
"Could not create {Service} : maybe Application.RegisterServices() wasn't called?",
typeof(T));
}
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="PopupRoot"/> class.
/// </summary>
/// <param name="dependencyResolver">
/// The dependency resolver to use. If null the default dependency resolver will be used.
/// </param>
public PopupRoot(IPerspexDependencyResolver dependencyResolver)
: base(PerspexLocator.Current.GetService <IPopupImpl>(), dependencyResolver)
{
GetObservable(ParentProperty).Subscribe(x => InheritanceParent = (PerspexObject)x);
}
public ResolverDisposable(IPerspexDependencyResolver resolver, PerspexLocator mutable)
{
_resolver = resolver;
_mutable = mutable;
}
public PerspexLocator(IPerspexDependencyResolver parentScope)
{
_parentScope = parentScope;
}
public static T GetService <T>(this IPerspexDependencyResolver resolver)
{
return((T)resolver.GetService(typeof(T)));
}
/// <summary>
/// Initializes a new instance of the <see cref="PopupRoot"/> class.
/// </summary>
/// <param name="dependencyResolver">
/// The dependency resolver to use. If null the default dependency resolver will be used.
/// </param>
public PopupRoot(IPerspexDependencyResolver dependencyResolver)
: base(PlatformManager.CreatePopup(), dependencyResolver)
{
GetObservable(ParentProperty).Subscribe(x => InheritanceParent = (PerspexObject)x);
}
/// <summary>
/// Initializes a new instance of the <see cref="PopupRoot"/> class.
/// </summary>
/// <param name="dependencyResolver">
/// The dependency resolver to use. If null the default dependency resolver will be used.
/// </param>
public PopupRoot(IPerspexDependencyResolver dependencyResolver)
: base(PerspexLocator.Current.GetService<IPopupImpl>(), dependencyResolver)
{
GetObservable(ParentProperty).Subscribe(x => InheritanceParent = (PerspexObject)x);
}
/// <summary>
/// Initializes a new instance of the <see cref="PopupRoot"/> class.
/// </summary>
/// <param name="dependencyResolver">
/// The dependency resolver to use. If null the default dependency resolver will be used.
/// </param>
public PopupRoot(IPerspexDependencyResolver dependencyResolver)
: base(PlatformManager.CreatePopup(), dependencyResolver)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="PopupRoot"/> class.
/// </summary>
/// <param name="dependencyResolver">
/// The dependency resolver to use. If null the default dependency resolver will be used.
/// </param>
public PopupRoot(IPerspexDependencyResolver dependencyResolver)
: base(PlatformManager.CreatePopup(), dependencyResolver)
{
GetObservable(ParentProperty).Subscribe(x => InheritanceParent = (PerspexObject)x);
}
/// <summary>
/// Initializes a new instance of the <see cref="PopupRoot"/> class.
/// </summary>
/// <param name="dependencyResolver">
/// The dependency resolver to use. If null the default dependency resolver will be used.
/// </param>
public PopupRoot(IPerspexDependencyResolver dependencyResolver)
: base(PlatformManager.CreatePopup(), dependencyResolver)
{
}
