public static void ApplyIsBusyBehaviour(this FrameworkElement ctrl, ViewModel mdl)
{
if (ctrl == null)
{
throw new ArgumentNullException("ctrl");
}
if (mdl == null)
{
throw new ArgumentNullException("mdl");
}
mdl.PropertyChanged += (sender, e) =>
{
switch (e.PropertyName)
{
case "IsBusy":
if (mdl.IsBusy)
{
ContentAdorner.ShowWaitDialog(ctrl);
}
else
{
ContentAdorner.HideWaitDialog(ctrl);
}
break;
}
};
}
public void ArrangeOverrideWhenChildIsNull()
{
var textBox = new TextBox();
var adorner = new ContentAdorner(textBox) { Child = null };
var result = ArrangeOverrideMethod.Invoke(adorner, new object[] { new Size(0, 0) });
Assert.AreEqual(new Size(0, 0), result);
}
public void ArrangeOverrideWhenChildIsNull()
{
var textBox = new TextBox();
var adorner = new ContentAdorner(textBox)
{
Child = null
};
var result = ArrangeOverrideMethod.Invoke(adorner, new object[] { new Size(0, 0) });
Assert.AreEqual(new Size(0, 0), result);
}
private static void ShowContentAdorner_PropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
var Element = o as FrameworkElement;
if (Element == null)
{
return;
}
var Listener = GetContentAdornerDataContextWeakEventListener(Element);
if ((bool)e.NewValue)
{
var AdornerLayer = InitializeAdornerLayerCache(Element);
if (AdornerLayer == null)
{
return;
}
var ContentAdorner = GetContentAdorner(Element);
if (ContentAdorner == null)
{
ContentAdorner = new ContentAdorner(Element);
ContentAdorner.Style = GetContentAdornerStyle(Element);
SetContentAdorner(Element, ContentAdorner);
}
if (ContentAdorner.Parent != AdornerLayer)
{
AdornerLayer.Add(ContentAdorner);
}
ContentAdorner.DataContext = Element.DataContext;
if (Listener == null)
{
Listener = new ContentAdornerDataContextWeakEventListener();
}
SetContentAdornerDataContextWeakEventListener(Element, Listener);
DataContextChangedEventManager.AddListener(Element, Listener);
}
else
{
if (Listener != null)
{
DataContextChangedEventManager.RemoveListener(Element, Listener);
SetContentAdornerDataContextWeakEventListener(Element, null);
}
RemoveContentAdorner(Element);
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
var btn = (Button)sender;
var lyr = AdornerLayer.GetAdornerLayer(btn);
if (_adorner != null)
{
lyr.Remove(_adorner);
_adorner = null;
}
else
{
_adorner = new ContentAdorner(new Button() { Content = "Here could be pretty much anything!" }, btn);
_adorner.HorizontalOffset = btn.ActualWidth / 2.0;
_adorner.VerticalOffset = btn.ActualHeight;
lyr.Add(_adorner);
}
}
private static void SetIfNotNull(
DependencyObject source,
DependencyProperty sourceProperty,
ContentAdorner adorner,
DependencyProperty adornerProperty)
{
var value = source.GetValue(sourceProperty);
if (value != null)
{
adorner.SetValue(adornerProperty, value);
}
}
private static void OnIsShowingChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var element = (UIElement)d;
if (Equals(e.NewValue, true))
{
var adorner = element.GetAdorner();
if (adorner == null)
{
adorner = new ContentAdorner(element);
element.SetAdorner(adorner);
}
SetIfNotNull(d, ContentProperty, adorner, ContentAdorner.ContentProperty);
SetIfNotNull(d, ContentTemplateProperty, adorner, ContentAdorner.ContentTemplateProperty);
SetIfNotNull(d, ContentTemplateSelectorProperty, adorner, ContentAdorner.ContentTemplateSelectorProperty);
SetIfNotNull(d, ContentPresenterStyleProperty, adorner, ContentAdorner.ContentPresenterStyleProperty);
AdornerService.Show(adorner);
}
else
{
var adorner = element.GetAdorner();
if (adorner != null)
{
AdornerService.Remove(adorner);
}
element.ClearValue(AdornerProperty);
}
}
private static void SetAdorner(this DependencyObject element, ContentAdorner value)
{
element.SetValue(AdornerProperty, value);
}
private void ShowAdorner()
{
var parent = this.Parent as Panel;
this.adorner = new ContentAdorner(parent, this.AdornedContent);
// this.adorner = new FrameworkElementAdorner(parent, new LoadingAnimation());
var adornerLayer = AdornerLayer.GetAdornerLayer(this);
if (adornerLayer != null)
{
adornerLayer.Add(this.adorner);
}
}
private void HideAdorner()
{
if (this.adorner == null)
{
return;
}
var adornerLayer = AdornerLayer.GetAdornerLayer(this);
if (adornerLayer != null)
{
adornerLayer.Remove(this.adorner);
this.adorner.DisconnectChild();
this.adorner = null;
}
}
internal static void SetContentAdorner(FrameworkElement element, ContentAdorner value)
{
element.SetValue(ContentAdornerProperty, value);
}
