public async Task NavigateToAsync <TViewModel>(NavigateParameters navigateParameters)
where TViewModel : IMdiWindowViewModel, INavigateAware
{
var viewModel = FindOrCreateViewModel <TViewModel>(navigateParameters);
_windowManager.ActivateWindow(viewModel);
viewModel.NavigatedTo(navigateParameters?.Context);
await viewModel.InitAsync();
}
public async Task NavigateToAsync <TViewModel>(string key, object obj)
where TViewModel : IMdiWindowViewModel, INavigateAware
{
ViewModelContext context = new ViewModelContext();
context.AddValue(key, obj);
NavigateParameters navigateParameters = new NavigateParameters(context);
await NavigateToAsync <TViewModel>(navigateParameters);
}
public async Task NavigateToAsync <TViewModel>(NavigateParameters navigateParameters, Action <NavigationResult> navigationCallback)
where TViewModel : IMdiWindowViewModel, INavigateAware
{
if (navigationCallback == null)
{
throw new ArgumentNullException(nameof(navigationCallback));
}
var viewModel = FindOrCreateViewModel <TViewModel>(navigateParameters);
viewModel.CallBackAction = navigationCallback;
_windowManager.ActivateWindow(viewModel);
viewModel.NavigatedTo(navigateParameters?.Context);
await viewModel.InitAsync();
}
private TViewModel FindOrCreateViewModel <TViewModel>(NavigateParameters navigateParameters)
where TViewModel : IMdiWindowViewModel, INavigateAware
{
TViewModel viewModel;
if (navigateParameters != null && navigateParameters.GuidWindows != Guid.Empty)
{
viewModel = _windowManager.FindWindow <TViewModel>(navigateParameters.GuidWindows);
if (viewModel == null)
{
throw new ArgumentNullException(nameof(viewModel));
}
}
else
{
viewModel = _windowsFactory.CreateWindow <TViewModel>();
Guid containerGuid = navigateParameters == null ? Guid.Empty : navigateParameters.GuidContainer;
viewModel = _windowManager.AppendWindowWithoutInit(viewModel, containerGuid, false);
}
return(viewModel);
}
