Navigation Events

[PureWeen]

Description of Change

Some timing fixes that need to happen
#1817

NavigationPage

• Fires for pushed page and previouspage
• Fires for popped page and landed on page
• PopToRoot fires for root page and currently visible page

TabbedPage

• fires for tab you are currently on and tab you navigated to

ModalPage

• Fires for top level window page when the first modal page is pushed
• Fires for top level window page when the last modal page is popped
• Fires for previous modal page and next modal page when pushing a second modal page

Additions made

public class Page
{
	public event EventHandler<NavigatedToEventArgs> NavigatedTo;
	public event EventHandler<NavigatingFromEventArgs> NavigatingFrom;
	public event EventHandler<NavigatedFromEventArgs> NavigatedFrom;		
	protected virtual void OnNavigatedTo(NavigatedToEventArgs args) { }
	protected virtual void OnNavigatingFrom(NavigatingFromEventArgs args) { }
	protected virtual void OnNavigatedFrom(NavigatedFromEventArgs args) { }
}

public sealed class NavigatingFromEventArgs : EventArgs
{

}

public sealed class NavigatedToEventArgs : EventArgs
{
}

public sealed class NavigatedFromEventArgs : EventArgs
{
}

[AmrAlSayed0]

public class Page
{
	public event EventHandler<NavigatingToEventArgs> NavigatingTo;	
	protected virtual void OnNavigatingTo(NavigatingToEventArgs args) { }
}

Maybe? An event that fires before the animation starts and NavigatedTo fires after it ends? It could be used to set-up the ViewModel and maybe fetch data from an API while the animation is happening.

[PureWeen]

@AmrAlSayed0 for now that's what Appearing will be for

[angelru]

public class Page
{
	public event EventHandler<NavigatingToEventArgs> NavigatingTo;	
	protected virtual void OnNavigatingTo(NavigatingToEventArgs args) { }
}

Maybe? An event that fires before the animation starts and NavigatedTo fires after it ends? It could be used to set-up the ViewModel and maybe fetch data from an API while the animation is happening.

It would be fine, with shell I found the issue that I put here:
[Bug] Shell Navigation Animation