public LiveToolTipAdorner(UIElement adornedElement, LiveToolTip tooltip)
: base(adornedElement)
{
visualChildren = new VisualCollection(this);
FollowMouseCursor = LiveToolTipService.GetFollowMouseCursor(adornedElement);
ToolTipOffset = new Point(LiveToolTipService.GetToolTipOffsetX(adornedElement), LiveToolTipService.GetToolTipOffsetY(adornedElement));
adornedElement.MouseLeave += adornedElement_MouseLeave;
adornedElement.MouseEnter += adornedElement_MouseEnter;
if (FollowMouseCursor)
{
adornedElement.PreviewMouseMove += adornedElement_MouseMove;
}
//FrameworkElement frAdornedElement = (FrameworkElement)adornedElement;
//frAdornedElement.SizeChanged += frAdornedElement_SizeChanged;
this.liveTooltip = tooltip;
tooltip.Visibility = Visibility.Hidden;
var parentCanvas = liveTooltip.Parent as Canvas;
if (parentCanvas != null)
{
parentCanvas.Children.Remove(liveTooltip);
}
canvas.Children.Add(liveTooltip);
AddLogicalChild(canvas);
visualChildren.Add(canvas);
Unloaded += LiveTooltipAdorner_Unloaded;
}
private static void OnTooltipOpacityChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
LiveToolTip liveTooltip = GetLiveToolTip(d);
if (liveTooltip != null)
{
liveTooltip.Opacity = (double)e.NewValue;
}
}
private static void AddTooltipForElement(FrameworkElement source, LiveToolTip tooltip)
{
AdornerLayer layer = AdornerLayer.GetAdornerLayer(source);
if (layer != null)
{
LiveToolTipAdorner adorner = new LiveToolTipAdorner(source, tooltip);
layer.Add(adorner);
}
}
private static void AddTooltip(FrameworkElement source)
{
if (DesignerProperties.GetIsInDesignMode(source))
{
return;
}
LiveToolTip tooltip = GetLiveToolTip(source);
Window window = Window.GetWindow(source);
FrameworkElement child = source;
FrameworkElement parent = null;
if (window != null)
{
while (parent != window)
{
parent = (FrameworkElement)VisualTreeHelper.GetParent(child);
child = parent;
var nameScope = NameScope.GetNameScope(parent);
if (nameScope != null)
{
string nameScopeName = nameScope.ToString();
if (nameScopeName != "System.Windows.TemplateNameScope")
{
NameScope.SetNameScope(tooltip, nameScope);
break;
}
}
}
}
var binding = BindingOperations.GetBinding(tooltip, LiveToolTip.ContentProperty);
if (binding != null)
{
BindingOperations.ClearBinding(tooltip, LiveToolTip.ContentProperty);
BindingOperations.SetBinding(tooltip, LiveToolTip.ContentProperty, binding);
}
Binding dataContextBinding = new Binding {
Path = new PropertyPath("DataContext"), Source = source
};
tooltip.SetBinding(LiveToolTip.DataContextProperty, dataContextBinding);
tooltip.Owner = source;
if (GetTooltipOpacity(source) != (double)LiveToolTipService.TooltipOpacityProperty.DefaultMetadata.DefaultValue)
{
tooltip.Opacity = LiveToolTipService.GetTooltipOpacity(source);
}
AddTooltipForElement(source, tooltip);
}
private static void SetLiveToolTip(DependencyObject obj, LiveToolTip value)
{
obj.SetValue(LiveToolTipProperty, value);
}
private static void OnToolTipChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
FrameworkElement source = (FrameworkElement)d;
if (e.NewValue == null)
{
source.Loaded -= source_Loaded;
source.ClearValue(LiveToolTipProperty);
}
if (GetIsPropertyProxy(source))
{
return;
}
var content = e.NewValue;
DataTemplate template = content as DataTemplate;
if (template != null)
{
content = template.LoadContent();
}
LiveToolTip tooltip = null;
if (e.NewValue is LiveToolTip)
{
tooltip = e.NewValue as LiveToolTip;
}
else
{
tooltip = new LiveToolTip {
Content = content
};
}
if (tooltip == null && e.OldValue == null)
{
tooltip = new LiveToolTip {
Content = content
};
}
if (tooltip != null)
{
SetLiveToolTip(source, tooltip);
if (!source.IsVisible)
{
source.IsVisibleChanged += source_Visible;
}
else if (!source.IsLoaded)
{
source.Loaded += source_Loaded;
}
else
{
AddTooltip(source);
}
}
}
