/// <summary>
/// Constructor
/// </summary>
/// <param name="dialogAssemblyViewProvider"> An instance of a <see cref="DialogAssemblyViewProvider"/> used to resolve views for the direct dialog view models. </param>
/// <param name="wrappingViewProvider"> The <see cref="WrappingViewProvider"/>s used to resolve views for content view models. </param>
/// <param name="attachToViewProviderEvent"> Flag if an event handler should be attached to the <see cref="WrappingViewProvider.ViewLoaded"/>event of <paramref name="wrappingViewProvider"/>. </param>
private DialogManager(DialogAssemblyViewProvider dialogAssemblyViewProvider, WrappingViewProvider wrappingViewProvider, bool attachToViewProviderEvent)
{
// Save parameters.
_dialogAssemblyViewProvider = dialogAssemblyViewProvider ?? throw new ArgumentNullException(nameof(dialogAssemblyViewProvider));
// Initialize fields.
_isInitialized = 0;
// If the wrapper does not contain any elements, that create one containing a default view provider.
if (!wrappingViewProvider.Any())
{
wrappingViewProvider = new WrappingViewProvider(new IViewProvider[] { new DefaultViewProvider() });
}
_wrappingViewProvider = wrappingViewProvider;
// Attach to the view providers view loaded event.
if (attachToViewProviderEvent)
{
_wrappingViewProvider.ViewLoaded += this.NewViewLoaded;
}
// Build all necessary dialog handlers.
var dialogHandlers = DialogManager.GetDialogHandlers(_dialogAssemblyViewProvider);
_dialogHandlers = new DialogHandlers(dialogHandlers);
}
/// <summary>
/// Creates <see cref="DialogHandler"/>s for every member in <see cref="DialogDisplayLocation"/>.
/// </summary>
/// <param name="dialogAssemblyViewProvider"> An instance of a <see cref="DialogAssemblyViewProvider"/> used to resolve views for the direct dialog view models. </param>
/// <returns> A collection of <see cref="DialogHandler"/>s. </returns>
private static DialogHandler[] GetDialogHandlers(DialogAssemblyViewProvider dialogAssemblyViewProvider)
{
return(Enum
.GetValues(typeof(DialogDisplayLocation))
.Cast <DialogDisplayLocation>()
.Select(displayLocation => DialogManager.CreateDialogHandler(displayLocation, dialogAssemblyViewProvider))
.ToArray()
);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="displayLocation"> The <see cref="DialogDisplayLocation"/> of this <see cref="DialogHandler"/>. </param>
/// <param name="dialogViewProvider"> <see cref="DialogAssemblyViewProvider"/> used to obtain the proper view for an <see cref="IDialogContainerViewModel"/>. </param>
public DialogHandler
(
DialogDisplayLocation displayLocation,
DialogAssemblyViewProvider dialogViewProvider
)
{
// Save parameters.
this.DisplayLocation = displayLocation;
_containerViewModel = new DialogContainerViewModel();
// Initialize fields.
_containerView = dialogViewProvider.GetViewInstance(_containerViewModel);
_dialogs = new ConcurrentStack <Dialog>();
this.IsInitialized = false;
}
/// <inheritdoc />
public DefaultDialogManager(DialogAssemblyViewProvider dialogAssemblyViewProvider, params IViewProvider[] viewProviders)
: base(dialogAssemblyViewProvider, viewProviders)
{
lock (DefaultDialogManager.Lock)
{
if (DefaultDialogManager.MainWindow is null)
{
void HandleMainWindowAvailable(object sender, EventArgs args)
{
DefaultDialogManager.MainWindowAvailable -= HandleMainWindowAvailable;
base.Initialize(DefaultDialogManager.MainWindow);
}
DefaultDialogManager.MainWindowAvailable += HandleMainWindowAvailable;
}
else
{
base.Initialize(DefaultDialogManager.MainWindow);
}
}
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="dialogAssemblyViewProvider"> An instance of a <see cref="DialogAssemblyViewProvider"/> used to resolve views for the direct dialog view models. </param>
/// <param name="viewProviders"> Optional <see cref="IViewProvider"/>s used to resolve views for content view models. Default is only a <see cref="DefaultViewProvider"/>. </param>
public DialogManager(DialogAssemblyViewProvider dialogAssemblyViewProvider, params IViewProvider[] viewProviders)
: this(dialogAssemblyViewProvider, new WrappingViewProvider(viewProviders), true)
{
}
/// <summary>
/// Creates a new instance of a <see cref="DialogHandler"/> based on <paramref name="displayLocation"/>.
/// </summary>
/// <param name="displayLocation"> The <see cref="DialogDisplayLocation"/> used later on to identify the <see cref="DialogHandler"/>. </param>
/// <param name="dialogAssemblyViewProvider"> An instance of a <see cref="DialogAssemblyViewProvider"/> used to resolve views for the direct dialog view models. </param>
/// <returns> A new <see cref="DialogHandler"/> instance. </returns>
private static DialogHandler CreateDialogHandler(DialogDisplayLocation displayLocation, DialogAssemblyViewProvider dialogAssemblyViewProvider)
{
return(new DialogHandler(displayLocation, dialogAssemblyViewProvider));
}
