protected override void OnElementChanged(VisualElementChangedEventArgs e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
Page.PagesChanged -= OnPagesChanged;
}
if (e.NewElement != null)
{
var newPage = e.NewElement as CarouselPage;
if (newPage == null)
{
throw new ArgumentException("New element must be a CarouselPage");
}
if (Widget == null)
{
Widget = new Carousel();
Widget.Animated = true;
var eventBox = new GtkFormsContainer();
eventBox.Add(Widget);
Control.Content = eventBox;
}
Init();
}
}
protected override void OnElementChanged(VisualElementChangedEventArgs e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
NavigationController.PushRequested -= OnPushRequested;
NavigationController.PopRequested -= OnPopRequested;
NavigationController.PopToRootRequested -= OnPopToRootRequested;
NavigationController.RemovePageRequested -= OnRemovedPageRequested;
NavigationController.InsertPageBeforeRequested -= OnInsertPageBeforeRequested;
}
if (e.NewElement != null)
{
if (Widget == null)
{
Widget = new Fixed();
var eventBox = new GtkFormsContainer();
eventBox.Add(Widget);
Control.Content = eventBox;
}
UpdateBackgroundImage();
Init();
}
}
protected override void OnElementChanged(VisualElementChangedEventArgs e)
{
base.OnElementChanged(e);
if (e.NewElement != null)
{
if (Widget == null)
{
// There is nothing similar in Gtk.
// Custom control has been created that simulates the expected behavior.
Widget = new Controls.MasterDetailPage();
var eventBox = new GtkFormsContainer();
eventBox.Add(Widget);
Control.Content = eventBox;
Widget.IsPresentedChanged += OnIsPresentedChanged;
UpdateMasterDetail();
UpdateMasterBehavior();
UpdateIsPresented();
UpdateBarTextColor();
UpdateBarBackgroundColor();
}
}
}
private void RefreshContent(GtkFormsContainer newContent)
{
_contentContainer.RemoveFromContainer(_content);
_content = newContent;
_contentContainer.Add(_content);
_content.ShowAll();
}
private void BuildPage()
{
_defaultBackgroundColor = Style.Backgrounds[(int)StateType.Normal];
_toolbar = new HBox();
_content = new GtkFormsContainer();
var root = new VBox(false, 0);
_headerContainer = new GtkFormsContainer();
root.PackStart(_headerContainer, false, false, 0);
_image = new ImageControl();
_image.Aspect = ImageAspect.Fill;
_contentContainerWrapper = new GtkFormsContainer();
_contentContainerWrapper.SizeAllocated += OnContentContainerWrapperSizeAllocated;
_contentContainer = new Fixed();
_contentContainer.Add(_image);
_contentContainerWrapper.Add(_contentContainer);
root.PackStart(_contentContainerWrapper, true, true, 0); // Should fill all available space
Attach(root, 0, 1, 0, 1);
ShowAll();
}
private void RefreshContent(GtkFormsContainer newContent)
{
_content.Destroy();
_content = newContent;
_contentContainer.Add(_content);
_content.ShowAll();
}
public override void Destroy()
{
base.Destroy();
if (_contentContainerWrapper != null)
{
_contentContainerWrapper.SizeAllocated -= OnContentContainerWrapperSizeAllocated;
_contentContainerWrapper = null;
}
_contentContainer = null;
_image = null;
_toolbar = null;
_content = null;
_headerContainer = null;
}
