void Popup_PreviewMouseUp(object sender, MouseButtonEventArgs e)
{
Popup.ReleaseMouseCapture();
Popup.Close();
Popup = null;
}
//public static void DragMoveWindow(System.Windows.Window window)
//{
// DragMoveWindow(window, null);
//}
public static void DragMoveWindow(System.Windows.Window window,
Func <bool> condition, Action dragStartCallback, Action <bool> dragEndCallback, UIElement[] excludedUiElements)
{
Point startPoint = new Point();
bool hasMoved = false;
window.PreviewMouseLeftButtonDown += (object sender, MouseButtonEventArgs e) =>
{
if (condition != null)
{
if (!condition())
{
return;
}
}
hasMoved = false;
startPoint = e.GetPosition(window);
//int a = 10;
};
window.MouseLeftButtonUp += (object sender, MouseButtonEventArgs e) =>
{
if (dragEndCallback != null)
{
dragEndCallback(hasMoved);
}
};
window.PreviewMouseMove += (object sender, MouseEventArgs e) =>
{
var currentPoint = e.GetPosition(window);
if (excludedUiElements != null)
{
foreach (UIElement uiElem in excludedUiElements)
{
if (uiElem.IsMouseDirectlyOver)
{
e.Handled = false;
return;
}
}
}
if (e.LeftButton == MouseButtonState.Pressed)
{
if ((Math.Abs(currentPoint.X - startPoint.X) > SystemParameters.MinimumHorizontalDragDistance ||
Math.Abs(currentPoint.Y - startPoint.Y) > SystemParameters.MinimumVerticalDragDistance))
{
if (dragStartCallback != null)
{
dragStartCallback();
}
// Prevent Click from firing
window.ReleaseMouseCapture();
hasMoved = true;
window.DragMove();
}
}
};
}
