protected override void Dispose(bool disposing)
{
if (disposing)
{
if (_flyoutContainer != null)
{
_flyoutContainer.Dispose();
_flyoutContainer = null;
}
if (_detailContainer != null)
{
_detailContainer.Dispose();
_detailContainer = null;
}
if (Element != null)
{
Element.Appearing -= OnFlyoutPageAppearing;
Element.Disappearing -= OnFlyoutPageDisappearing;
}
}
base.Dispose(disposing);
}
protected override void OnElementChanged(ElementChangedEventArgs <FlyoutPage> e)
{
if (_flyoutPage == null)
{
_flyoutPage = new Native.FlyoutPage(Forms.NativeParent)
{
IsPresented = e.NewElement.IsPresented,
Flyout = _flyoutContainer = new FlyoutContainer(Element, true),
Detail = _detailContainer = new FlyoutContainer(Element, false),
};
_flyoutPage.IsPresentedChanged += (sender, ev) =>
{
Element.IsPresented = ev.IsPresent;
};
_flyoutPage.UpdateIsPresentChangeable += (sender, ev) =>
{
(Element as IFlyoutPageController).CanChangeIsPresented = ev.CanChange;
};
SetNativeView(_flyoutPage);
}
if (e.OldElement != null)
{
(e.OldElement as IFlyoutPageController).BackButtonPressed -= OnBackButtonPressed;
e.OldElement.Appearing -= OnFlyoutPageAppearing;
e.OldElement.Disappearing -= OnFlyoutPageDisappearing;
}
if (e.NewElement != null)
{
(e.NewElement as IFlyoutPageController).BackButtonPressed += OnBackButtonPressed;
e.NewElement.Appearing += OnFlyoutPageAppearing;
e.NewElement.Disappearing += OnFlyoutPageDisappearing;
}
UpdateFlyoutLayoutBehavior();
base.OnElementChanged(e);
}
/// <summary>
/// Handles a basic <see cref="MessageBoxMessage" /> on a flyout container by showing a <see cref="ModernMessageBox" />
/// and invokes the callback.
/// </summary>
/// <param name="message">The message.</param>
/// <param name="owner">The owner.</param>
/// <exception cref="System.ArgumentNullException">owner</exception>
public static void HandleWithModern(this MessageBoxMessage message, FlyoutContainer owner)
{
if (owner == null)
{
throw new ArgumentNullException("owner");
}
var d = owner.FindDispatcher();
if (d != null && !d.CheckAccess())
{
d.BeginInvoke(new Action <Window>(win =>
{
HandleWithModern(message, win);
}), owner);
return;
}
var res = ModernMessageBox.Show(owner, message.Content, message.Caption, message.Button, message.Icon, message.DefaultResult);
message.DoCallback(res);
}
