public virtual void PlayReverse(Action completed)
{
TransitionHelper.Hide(ToPage);
TransitionHelper.Show(FromPage);
if (completed != null)
{
completed.Invoke();
}
}
public void GoTo <TPage, TTransition>(Object parameter, bool includeInBackStack = true)
where TPage : PageBase
where TTransition : PageTransition, new()
{
PageBase page;
if (CurrentPage != null && CurrentPage.GetType() == typeof(TPage))
{
CurrentPage.NavigatedTo(NavigationMode.Refresh, parameter);
return;
}
OnNavigating();
if (CurrentPage != null)
{
CurrentPage.IsHitTestVisible = false;
CurrentPage.NavigatedFrom(NavigationMode.Forward);
page = GetPage <TPage>();
page.BeforeNavigateTo();
var transition = Activator.CreateInstance <TTransition>();
transition.FromPage = CurrentPage;
transition.ToPage = page;
transition.Play(() =>
{
CurrentPage = page;
page.IsHitTestVisible = true;
var from = _rootContainer.Children.IndexOf(page);
var to = _rootContainer.Children.Count - 1;
_rootContainer.Children.Move((uint)from, (uint)to);
page.NavigatedTo(NavigationMode.Forward, parameter);
_rootPage.BottomAppBar = page.Bar;
OnNavigated();
});
if (includeInBackStack || _stack.Count > 0)
{
PageTransition navTransition = null;
if (!includeInBackStack)
{
navTransition = _stack.Pop().Invoke(false);
navTransition.ToPage = transition.ToPage;
}
else
{
navTransition = transition;
}
Commit(
execute =>
{
if (!execute)
{
return(transition);
}
navTransition.PlayReverse(
() =>
{
CurrentPage = navTransition.FromPage;
var from = _rootContainer.Children.IndexOf(navTransition.FromPage);
var to = _rootContainer.Children.Count - 1;
_rootContainer.Children.Move((uint)from, (uint)to);
_rootPage.BottomAppBar = navTransition.FromPage.Bar;
navTransition.ToPage.NavigatedFrom(NavigationMode.Back);
navTransition.ToPage.IsHitTestVisible = false;
navTransition.FromPage.NavigatedTo(NavigationMode.Back, null);
navTransition.FromPage.IsHitTestVisible = true;
});
return(transition);
});
return;
}
}
page = GetPage <TPage>();
page.IsHitTestVisible = true;
page.BeforeNavigateTo();
TransitionHelper.Show(page);
page.NavigatedTo(NavigationMode.Forward, parameter);
CurrentPage = page;
_rootPage.BottomAppBar = page.Bar;
var fromMain = _rootContainer.Children.IndexOf(page);
var toMain = _rootContainer.Children.Count - 1;
_rootContainer.Children.Move((uint)fromMain, (uint)toMain);
OnNavigated();
}