/// <summary>
/// Tries to get the current <see cref="TouchesManager"/> for the given view
/// </summary>
public static bool TryGet(UIView view, out TouchesManager manager)
{
switch (view)
{
case NativeScrollContentPresenter presenter:
manager = presenter.TouchesManager;
return(true);
case UIScrollView scrollView:
manager = _scrollViews.GetValue(scrollView, sv => new ScrollViewTouchesManager((UIScrollView)sv));
return(true);
case ListViewBase listView:
manager = listView.NativePanel.TouchesManager;
return(true);
case UIWebView uiWebView:
manager = _scrollViews.GetValue(uiWebView.ScrollView, sv => new ScrollViewTouchesManager((UIScrollView)sv));
return(true);
case WKWebView wkWebView:
manager = _scrollViews.GetValue(wkWebView.ScrollView, sv => new ScrollViewTouchesManager((UIScrollView)sv));
return(true);
default:
manager = default;
return(false);
}
}
private void PrepareParentTouchesManagers(ManipulationModes mode, bool canDrag)
{
// 1. Make sure to end any pending manipulation
ReleaseParentTouchesManager();
// 2. If this control can Walk the tree to detect all ScrollView and register our self as a manipulation listener
if (mode != ManipulationModes.System || canDrag)
{
_parentsTouchesManager = TouchesManager.GetAllParents(this).ToList();
foreach (var manager in _parentsTouchesManager)
{
manager.RegisterChildListener();
}
}
}
/// <summary>
/// Tries to get the current <see cref="TouchesManager"/> for the given view
/// </summary>
public static bool TryGet(UIView view, out TouchesManager manager)
{
switch (view)
{
// Custom managers
case NativeScrollContentPresenter presenter:
manager = presenter.TouchesManager;
return(true);
case NativeListViewBase listView:
manager = listView.TouchesManager;
return(true);
// Generic manager
case UIScrollView scrollView:
manager = _scrollViews.GetValue(scrollView, sv => new ScrollViewTouchesManager((UIScrollView)sv));
return(true);
// Redirections to nested native scrollable contents
case ListViewBase listView:
manager = listView.NativePanel.TouchesManager; // We only propagates the touches manager of the nested native ListView/UICollectionView
return(true);
#if !__MACCATALYST__
case UIWebView uiWebView:
manager = _scrollViews.GetValue(uiWebView.ScrollView, sv => new ScrollViewTouchesManager((UIScrollView)sv));
return(true);
#endif
case WKWebView wkWebView:
manager = _scrollViews.GetValue(wkWebView.ScrollView, sv => new ScrollViewTouchesManager((UIScrollView)sv));
return(true);
default:
manager = default;
return(false);
}
}
