internal static void OnAnimationStopped(IElementController image, FormsAnimationDrawableStateEventArgs e)
{
if (image != null && e.Finished)
{
image.SetValueFromRenderer(Image.IsAnimationPlayingProperty, false);
}
}
protected override void OnElementControllerRemoving(IElementController element)
{
if (element is IShellContentController controller)
{
controller.IsPageVisibleChanged -= OnIsPageVisibleChanged;
}
}
protected override void OnElementControllerInserting(IElementController element)
{
base.OnElementControllerInserting(element);
if (element is IShellContentController controller)
{
controller.IsPageVisibleChanged += OnIsPageVisibleChanged;
}
}
static void AttachEffect(ListView element)
{
IElementController controller = element;
if (controller == null || controller.EffectIsAttached(ListViewEffectNoSelection.NAME))
{
return;
}
element.Effects.Add(new ListViewEffectNoSelection());
}
static void AttachEffect(Entry element)
{
IElementController controller = element;
if (controller == null || controller.EffectIsAttached(EffectIds.ClearEntryEffect))
{
return;
}
element.Effects.Add(Effect.Resolve(EffectIds.ClearEntryEffect));
}
static void AttachEffect(FormsElement element)
{
IElementController controller = element;
if (controller == null || controller.EffectIsAttached(EffectName))
{
return;
}
element.Effects.Add(Effect.Resolve(EffectName));
}
public static void RegisterEffectControlProvider(IEffectControlProvider self, IElementController oldElement,
IElementController newElement)
{
IElementController controller = oldElement;
if (controller != null && controller.EffectControlProvider == self)
controller.EffectControlProvider = null;
controller = newElement;
if (controller != null)
controller.EffectControlProvider = self;
}
void OnEditingEnded(object sender, EventArgs e)
{
IElementController ElementController = Element as IElementController;
if (Control.Text != Element.Text)
{
ElementController.SetValueFromRenderer(Entry.TextProperty, Control.Text);
}
ElementController.SetValueFromRenderer(VisualElement.IsFocusedProperty, false);
}
static void AttachEffect(FormsElement element)
{
IElementController controller = element;
if (controller is null || controller.EffectIsAttached(EffectIds.NavigationBar))
{
return;
}
element.Effects.Add(Effect.Resolve(EffectIds.NavigationBar));
}
public void AttachEffect(Element element) // must take Element: https://github.com/xamarin/Xamarin.Forms/blob/master/Xamarin.Forms.Core/Element.cs
{
// Console.WriteLine("AttachEffect");
IElementController controller = element;
if (controller == null || controller.EffectIsAttached(EffectName))
{
return;
}
element.Effects.Add(Effect.Resolve(EffectName));
// Console.WriteLine("Effect added");
}
public static void RegisterEffectControlProvider(IEffectControlProvider self, IElementController oldElement, IElementController newElement)
{
IElementController controller = oldElement;
if (controller != null && controller.EffectControlProvider == self)
{
controller.EffectControlProvider = null;
}
controller = newElement;
if (controller != null)
{
controller.EffectControlProvider = self;
}
}
static void DetachEffect(FormsElement element)
{
IElementController controller = element;
if (controller == null || !controller.EffectIsAttached(EffectName))
{
return;
}
var toRemove = element.Effects.FirstOrDefault(e => e.ResolveId == Effect.Resolve(EffectName).ResolveId);
if (toRemove != null)
{
element.Effects.Remove(toRemove);
}
}
static void DetachEffect(ListView element)
{
IElementController controller = element;
if (controller == null || !controller.EffectIsAttached(ListViewEffectNoSelection.NAME))
{
return;
}
var resolveId = Effect.Resolve(ListViewEffectNoSelection.NAME).ResolveId;
var toRemove = element.Effects.FirstOrDefault(e => e.ResolveId == resolveId);
if (toRemove != null)
{
element.Effects.Remove(toRemove);
}
}
public void DetachEffect(Element element)
{
// Console.WriteLine("DetachEffect");
IElementController controller = element;
if (controller == null || !controller.EffectIsAttached(EffectName))
{
return;
}
var toRemove = element.Effects.FirstOrDefault(e => e.ResolveId == Effect.Resolve(EffectName).ResolveId);
if (toRemove != null)
{
element.Effects.Remove(toRemove);
// Console.WriteLine("Effect removed");
}
}
void OnChildAdded(object sender, ElementEventArgs e)
{
var view = e.Element as VisualElement;
if (view != null)
{
AddChild(view);
}
// changing the order makes sense only in case of Layouts
if (Element is Layout)
{
IElementController controller = Element as IElementController;
if (controller.LogicalChildren[controller.LogicalChildren.Count - 1] != view)
{
EnsureChildOrder();
}
}
}
private static void DisappearingIterateChildren(IElementController content)
{
var children = content?.LogicalChildren;
if (children != null)
{
foreach (var child in children)
{
if (child.GetType().IsSubclassOf(typeof(BaseContentView)))
{
var baseContentView = child as BaseContentView;
baseContentView?.OnDisappearing();
}
else
{
DisappearingIterateChildren(child);
}
}
}
}
public static void UnregisterEffectControlProvider(IEffectControlProvider self, IElementController element)
{
if (element?.EffectControlProvider == self)
{
element.EffectControlProvider = null;
}
}
internal ElementController(IElementController cntrlr)
{
controller = cntrlr;
}
void OnEditingBegan(object sender, EventArgs e)
{
IElementController ElementController = Element as IElementController;
ElementController.SetValueFromRenderer(VisualElement.IsFocusedProperty, true);
}
void OnEditingChanged(object sender, EventArgs eventArgs)
{
IElementController ElementController = Element as IElementController;
ElementController.SetValueFromRenderer(Entry.TextProperty, Control.Text);
}
private void SelectGroupByOpacity(IElementController toSelect, double opacitySelected, double opacityUnselected)
{
Task.WhenAll(
Groups.Children.Select(item => item.FadeTo(item != toSelect ? opacityUnselected : opacitySelected)));
}
