internal Platform()
{
_renderer = new PlatformRenderer(this);
MessagingCenter.Subscribe(this, Page.AlertSignalName, (Page sender, AlertArguments arguments) =>
{
var alert = NSAlert.WithMessage(arguments.Title, arguments.Cancel, arguments.Accept, null, arguments.Message);
var result = alert.RunSheetModal(_renderer.View.Window);
if (arguments.Accept == null)
{
arguments.SetResult(result == 1);
}
else
{
arguments.SetResult(result == 0);
}
});
MessagingCenter.Subscribe(this, Page.ActionSheetSignalName, (Page sender, ActionSheetArguments arguments) =>
{
var alert = NSAlert.WithMessage(arguments.Title, arguments.Cancel, arguments.Destruction, null, "");
if (arguments.Buttons != null)
{
int maxScrollHeight = (int)(0.6 * NSScreen.MainScreen.Frame.Height);
NSView extraButtons = GetExtraButton(arguments);
if (extraButtons.Frame.Height > maxScrollHeight)
{
NSScrollView scrollView = new NSScrollView();
scrollView.Frame = new RectangleF(0, 0, extraButtons.Frame.Width, maxScrollHeight);
scrollView.DocumentView = extraButtons;
scrollView.HasVerticalScroller = true;
alert.AccessoryView = scrollView;
}
else
{
alert.AccessoryView = extraButtons;
}
alert.Layout();
}
var result = (int)alert.RunSheetModal(_renderer.View.Window);
var titleResult = string.Empty;
if (result == 1)
{
titleResult = arguments.Cancel;
}
else if (result == 0)
{
titleResult = arguments.Destruction;
}
else if (result > 1 && arguments.Buttons != null && result - 2 <= arguments.Buttons.Count())
{
titleResult = arguments.Buttons.ElementAt(result - 2);
}
arguments.SetResult(titleResult);
});
}
protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
if (disposing)
{
_modalTracker.Dispose();
_modalTracker = null;
_platformRenderer = null;
}
_disposed = true;
}
}
public PlatformNavigation(PlatformRenderer mainRenderer)
{
_platformRenderer = mainRenderer;
_modalTracker = new ModalPageTracker(_platformRenderer);
_animateModals = true;
}