/// <summary>
/// The on element mouse leave.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The e.</param>
private static void OnElementMouseLeave(object sender, MouseEventArgs e)
{
PinnableToolTip toolTip = null;
lock (Locker)
{
var currentElement = (UIElement)sender;
if (ElementsAndToolTips.ContainsKey(currentElement))
{
toolTip = ElementsAndToolTips[currentElement];
}
else
{
return;
}
}
if (toolTip == null)
{
return;
}
if (!toolTip.IsOpen)
{
toolTip.StopTimer();
}
}
/// <summary>
/// The on element mouse enter.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The e.</param>
private static void OnElementMouseEnter(object sender, MouseEventArgs e)
{
UIElement currentElement;
PinnableToolTip toolTip = null;
lock (Locker)
{
currentElement = sender as UIElement;
if (currentElement != null)
{
if (ElementsAndToolTips.ContainsKey(currentElement))
{
toolTip = ElementsAndToolTips[currentElement];
}
else
{
return;
}
}
MousePosition = e.GetPosition(null);
SetRootVisual();
}
if (toolTip == null || (toolTip.Content == null && toolTip.ContentTemplate == null) || toolTip.IsTimerEnabled || toolTip.IsOpen)
{
return;
}
var initialShowDelay = GetInitialShowDelay(currentElement);
var showDuration = GetShowDuration(currentElement);
toolTip.SetupTimer(initialShowDelay, showDuration);
toolTip.StartTimer();
}
/// <summary>
/// The unregister toolTip.
/// </summary>
/// <param name="owner">The owner.</param>
private static void UnregisterToolTip(UIElement owner)
{
try
{
if (owner == null)
{
return;
}
lock (Locker)
{
PinnableToolTip toolTip = null;
if (ElementsAndToolTips.ContainsKey(owner))
{
toolTip = ElementsAndToolTips[owner];
}
else
{
return;
}
var element = owner as FrameworkElement;
if (element != null)
{
element.Unloaded -= FrameworkElementUnloaded;
if (toolTip != null)
{
toolTip.SetValue(FrameworkElement.DataContextProperty, null);
}
}
owner.MouseEnter -= OnElementMouseEnter;
owner.MouseLeave -= OnElementMouseLeave;
var control = owner as Control;
if (control != null)
{
control.IsEnabledChanged -= OnControlEnabledChanged;
}
if (toolTip != null)
{
toolTip.Hide();
toolTip.Owner = null;
}
ElementsAndToolTips.Remove(owner);
}
}
catch (Exception)
{
// Ignore
}
}
/// <summary>
/// The framework element unloaded.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The e.</param>
private static void FrameworkElementUnloaded(object sender, RoutedEventArgs e)
{
var element = (UIElement)sender;
PinnableToolTip toolTip = null;
lock (Locker)
{
if (ElementsAndToolTips.ContainsKey(element))
{
toolTip = ElementsAndToolTips[element];
}
}
toolTip?.Hide();
}
/// <summary>
/// The register toolTip.
/// </summary>
/// <param name="owner">The owner.</param>
/// <param name="p">The p.</param>
private static void RegisterToolTip(UIElement owner, object p)
{
if (owner == null)
{
return;
}
lock (Locker)
{
if (ElementsAndToolTips.ContainsKey(owner))
{
return;
}
}
var element = owner as FrameworkElement;
PinnableToolTip toolTip = null;
if (p != null)
{
toolTip = p as PinnableToolTip ?? ConvertToToolTip(p);
toolTip.Owner = owner;
}
if (element != null)
{
element.Unloaded += FrameworkElementUnloaded;
}
owner.MouseEnter += OnElementMouseEnter;
owner.MouseLeave += OnElementMouseLeave;
var control = owner as Control;
if (control != null)
{
control.IsEnabledChanged += OnControlEnabledChanged;
}
lock (Locker)
{
ElementsAndToolTips[owner] = toolTip;
}
}
/// <summary>
/// The on placement target property changed.
/// </summary>
/// <param name="d">The d.</param>
/// <param name="e">The e.</param>
private static void OnPlacementTargetChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
var element = (UIElement)d;
PinnableToolTip toolTip = null;
lock (Locker)
{
if (ElementsAndToolTips.ContainsKey(element))
{
toolTip = ElementsAndToolTips[element];
}
}
if (toolTip != null && toolTip.IsOpen)
{
toolTip.PerformPlacement();
}
}
/// <summary>
/// The on control enabled changed.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The e.</param>
private static void OnControlEnabledChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if ((bool)e.NewValue)
{
return;
}
var element = (UIElement)sender;
PinnableToolTip toolTip = null;
lock (Locker)
{
if (ElementsAndToolTips.ContainsKey(element))
{
toolTip = ElementsAndToolTips[element];
}
}
toolTip?.StopTimer();
}
