public virtual void ShowCarouselPage(
Type view,
MvxCarouselPagePresentationAttribute attribute,
MvxViewModelRequest request)
{
var page = CloseAndCreatePage(view, request, attribute);
if (attribute.Position == CarouselPosition.Root)
{
if (!(page is MvxCarouselPage carouselPageRoot))
{
throw new MvxException($"A root page should be of type {nameof(MvxCarouselPage)}");
}
PushOrReplacePage(FormsApplication.MainPage, page, attribute);
}
else
{
var carouselHost = GetHostPageOfType <MvxCarouselPage>();
if (carouselHost == null)
{
MvxTrace.Trace($"Current root is not a CarouselPage show your own first to use custom Host. Assuming we need to create one.");
carouselHost = new MvxCarouselPage();
PushOrReplacePage(FormsApplication.MainPage, carouselHost, attribute);
}
carouselHost.Children.Add(page as ContentPage);
}
}
public virtual async Task <bool> ShowCarouselPage(
Type view,
MvxCarouselPagePresentationAttribute attribute,
MvxViewModelRequest request)
{
var page = await CloseAndCreatePage(view, request, attribute);
if (attribute.Position == CarouselPosition.Root)
{
if (!(page is MvxCarouselPage carouselPageRoot))
{
throw new MvxException($"A root page should be of type {nameof(MvxCarouselPage)}");
}
await PushOrReplacePage(FormsApplication.MainPage, page, attribute);
}
else
{
var carouselHost = GetPageOfType <CarouselPage>();
if (carouselHost == null)
{
MvxFormsLog.Instance?.Log(LogLevel.Trace, "Current root is not a CarouselPage show your own first to use custom Host. Assuming we need to create one.");
carouselHost = new CarouselPage();
await PushOrReplacePage(FormsApplication.MainPage, carouselHost, attribute);
}
carouselHost.Children.Add(page as ContentPage);
}
return(true);
}
public virtual bool CloseCarouselPage(IMvxViewModel viewModel, MvxCarouselPagePresentationAttribute attribute)
{
if (attribute.Position == CarouselPosition.Root)
{
if (FormsApplication.MainPage is MvxNavigationPage rootNavigationPage)
{
rootNavigationPage.PopAsync(attribute.Animated);
}
return(true);
}
else
{
var carouselHost = FormsApplication.MainPage as CarouselPage;
if (carouselHost == null && FormsApplication.MainPage is MvxNavigationPage navigationPage)
{
carouselHost = navigationPage.CurrentPage as CarouselPage;
}
var page = carouselHost.Children.OfType <IMvxPage>().FirstOrDefault(x => x.ViewModel == viewModel);
if (page is ContentPage carouselPage)
{
carouselHost.Children.Remove(carouselPage);
}
else
{
return(false);
}
return(true);
}
}
public virtual void ShowCarouselPage(
Type view,
MvxCarouselPagePresentationAttribute attribute,
MvxViewModelRequest request)
{
CloseAllModals();
var page = CreatePage(view, request);
if (attribute.Position == CarouselPosition.Root)
{
if (page is CarouselPage carouselPageRoot)
{
if (attribute.WrapInNavigationPage && FormsApplication.MainPage is MvxNavigationPage currentPage)
{
currentPage.PushAsync(page);
}
else if (attribute.WrapInNavigationPage)
{
FormsApplication.MainPage = new MvxNavigationPage(page);
}
else
{
FormsApplication.MainPage = page;
}
}
else
{
throw new MvxException($"A root page should be of type {nameof(CarouselPage)}");
}
}
else
{
var carouselHost = FormsApplication.MainPage as CarouselPage;
if (carouselHost == null && FormsApplication.MainPage is MvxNavigationPage navigationPage)
{
carouselHost = navigationPage.CurrentPage as CarouselPage;
if (carouselHost == null)
{
MvxTrace.Trace($"Current root is not a CarouselPage show your own first to use custom Host. Assuming we need to create one.");
carouselHost = new MvxCarouselPage();
navigationPage.PushAsync(carouselHost);
}
}
else if (carouselHost == null)
{
MvxTrace.Trace($"Current root is not a CarouselPage show your own first to use custom Host. Assuming we need to create one.");
carouselHost = new MvxCarouselPage();
FormsApplication.MainPage = carouselHost;
}
if (string.IsNullOrEmpty(page.Title))
{
page.Title = attribute.Title;
}
carouselHost.Children.Add(page as ContentPage);
}
}
public virtual bool CloseCarouselPage(IMvxViewModel viewModel, MvxCarouselPagePresentationAttribute attribute)
{
if (attribute.Position == CarouselPosition.Root)
{
return(ClosePage(FormsApplication.MainPage, null, attribute));
}
else
{
var carouselHost = GetHostPageOfType <MvxCarouselPage>();
var page = carouselHost.Children.OfType <IMvxPage>().FirstOrDefault(x => x.ViewModel == viewModel);
if (page is ContentPage carouselPage)
{
carouselHost.Children.Remove(carouselPage);
}
else
{
return(false);
}
return(true);
}
}
public virtual Task <bool> CloseCarouselPage(IMvxViewModel viewModel, MvxCarouselPagePresentationAttribute attribute)
{
if (attribute.Position == CarouselPosition.Root)
{
return(FindAndCloseViewFromViewModel(viewModel, FormsApplication.MainPage, attribute));
}
else
{
var carouselHost = GetPageOfType <MvxCarouselPage>();
var page = carouselHost.Children.OfType <IMvxPage>().FirstOrDefault(x => x.ViewModel == viewModel);
if (page is ContentPage carouselPage)
{
carouselHost.Children.Remove(carouselPage);
}
else
{
return(Task.FromResult(false));
}
return(Task.FromResult(true));
}
}
