public static void SetAutoMoveVerticalOffset(ToolTip element, double value)
{
element.SetValue(AutoMoveVerticalOffsetProperty, value);
}
/// <summary>
/// Initiates the process of opening the tooltip popup.
/// </summary>
/// <param name="fromKeyboard">
/// Whether this particular event is caused by keyboard focus.
/// This is passed down to the tooltip and the popup to determine its placement.
/// </param>
private void RaiseToolTipOpeningEvent(bool fromKeyboard = false)
{
ResetToolTipTimer();
if (_forceCloseTimer != null)
{
OnForceClose(null, EventArgs.Empty);
}
DependencyObject o = LastObjectWithToolTip;
if (o != null)
{
bool show = true;
IInputElement element = o as IInputElement;
if (element != null)
{
ToolTipEventArgs args = new ToolTipEventArgs(true);
element.RaiseEvent(args);
show = !args.Handled;
}
if (show)
{
object tooltip = ToolTipService.GetToolTip(o);
ToolTip tip = tooltip as ToolTip;
if (tip != null)
{
_currentToolTip = tip;
_ownToolTip = false;
}
else if ((_currentToolTip == null) || !_ownToolTip)
{
_currentToolTip = new ToolTip();
_ownToolTip = true;
_currentToolTip.SetValue(ServiceOwnedProperty, BooleanBoxes.TrueBox);
// Bind the content of the tooltip to the ToolTip attached property
Binding binding = new Binding();
binding.Path = new PropertyPath(ToolTipService.ToolTipProperty);
binding.Mode = BindingMode.OneWay;
binding.Source = o;
_currentToolTip.SetBinding(ToolTip.ContentProperty, binding);
}
if (!_currentToolTip.StaysOpen)
{
// The popup takes capture in this case, which causes us to hit test to the wrong window.
// We do not support this scenario. Cleanup and then throw and exception.
throw new NotSupportedException(SR.Get(SRID.ToolTipStaysOpenFalseNotAllowed));
}
_currentToolTip.SetValue(OwnerProperty, o);
_currentToolTip.Opened += OnToolTipOpened;
_currentToolTip.Closed += OnToolTipClosed;
_currentToolTip.FromKeyboard = fromKeyboard;
_currentToolTip.IsOpen = true;
ToolTipTimer = new DispatcherTimer(DispatcherPriority.Normal);
ToolTipTimer.Interval = TimeSpan.FromMilliseconds(ToolTipService.GetShowDuration(o));
ToolTipTimer.Tick += new EventHandler(OnRaiseToolTipClosingEvent);
ToolTipTimer.Start();
}
}
}
public static void SetAutoMove(ToolTip element, bool value)
{
element.SetValue(AutoMoveProperty, value);
}
private void RaiseToolTipOpeningEvent()
{
ResetToolTipTimer();
if (_forceCloseTimer != null)
{
OnForceClose(null, EventArgs.Empty);
}
DependencyObject o = LastMouseOverWithToolTip;
if (o != null)
{
bool show = true;
IInputElement element = o as IInputElement;
if (element != null)
{
ToolTipEventArgs args = new ToolTipEventArgs(true);
element.RaiseEvent(args);
show = !args.Handled;
}
if (show)
{
object tooltip = ToolTipService.GetToolTip(o);
ToolTip tip = tooltip as ToolTip;
if (tip != null)
{
_currentToolTip = tip;
_ownToolTip = false;
}
else if ((_currentToolTip == null) || !_ownToolTip)
{
_currentToolTip = new ToolTip();
_ownToolTip = true;
_currentToolTip.SetValue(ServiceOwnedProperty, BooleanBoxes.TrueBox);
// Bind the content of the tooltip to the ToolTip attached property
Binding binding = new Binding();
binding.Path = new PropertyPath(ToolTipService.ToolTipProperty);
binding.Mode = BindingMode.OneWay;
binding.Source = o;
_currentToolTip.SetBinding(ToolTip.ContentProperty, binding);
}
if (!_currentToolTip.StaysOpen)
{
// The popup takes capture in this case, which causes us to hit test to the wrong window.
// We do not support this scenario. Cleanup and then throw and exception.
throw new NotSupportedException(SR.Get(SRID.ToolTipStaysOpenFalseNotAllowed));
}
_currentToolTip.SetValue(OwnerProperty, o);
_currentToolTip.Closed += OnToolTipClosed;
_currentToolTip.IsOpen = true;
ToolTipTimer = new DispatcherTimer(DispatcherPriority.Normal);
ToolTipTimer.Interval = TimeSpan.FromMilliseconds(ToolTipService.GetShowDuration(o));
ToolTipTimer.Tick += new EventHandler(OnRaiseToolTipClosingEvent);
ToolTipTimer.Start();
}
}
}
