internal static void DoWindowTitleThumbOnPreviewMouseLeftButtonUp(SimpleMetroWindow window, MouseButtonEventArgs mouseButtonEventArgs)
{
if (mouseButtonEventArgs.Source == mouseButtonEventArgs.OriginalSource)
{
Mouse.Capture(null);
}
}
internal static void DoWindowTitleThumbSystemMenuOnMouseRightButtonUp(SimpleMetroWindow window, MouseButtonEventArgs e)
{
if (window.ShowSystemMenuOnRightClick)
{
// show menu only if mouse pos is on title bar or if we have a window with none style and no title bar
var mousePos = e.GetPosition(window);
////if ((mousePos.Y <= window.TitlebarHeight && window.TitlebarHeight > 0) || (window.UseNoneWindowStyle && window.TitlebarHeight <= 0))
////{
ShowSystemMenuPhysicalCoordinates(window, window.PointToScreen(mousePos));
////}
}
}
internal static void DoWindowTitleThumbChangeWindowStateOnMouseDoubleClick(SimpleMetroWindow window, MouseButtonEventArgs mouseButtonEventArgs)
{
// restore/maximize only with left button
if (mouseButtonEventArgs.ChangedButton == MouseButton.Left)
{
// we can maximize or restore the window if the title bar height is set (also if title bar is hidden)
var canResize = window.ResizeMode == ResizeMode.CanResizeWithGrip || window.ResizeMode == ResizeMode.CanResize;
var mousePos = Mouse.GetPosition(window);
var isMouseOnTitlebar = true; //// var isMouseOnTitlebar = mousePos.Y <= window.TitlebarHeight && window.TitlebarHeight > 0;
if (canResize && isMouseOnTitlebar)
{
if (window.WindowState == WindowState.Maximized)
{
SystemCommands.RestoreWindow(window);
}
else
{
SystemCommands.MaximizeWindow(window);
}
mouseButtonEventArgs.Handled = true;
}
}
}
internal static void DoWindowTitleThumbMoveOnDragDelta(IMetroThumb thumb, SimpleMetroWindow window, DragDeltaEventArgs dragDeltaEventArgs)
{
if (thumb == null)
{
throw new ArgumentNullException(nameof(thumb));
}
if (window == null)
{
throw new ArgumentNullException(nameof(window));
}
// drag only if IsWindowDraggable is set to true
if (!window.IsWindowDraggable ||
(!(Math.Abs(dragDeltaEventArgs.HorizontalChange) > 2) && !(Math.Abs(dragDeltaEventArgs.VerticalChange) > 2)))
{
return;
}
// tage from DragMove internal code
window.VerifyAccess();
var cursorPos = NativeMethods.GetCursorPos();
// if the window is maximized dragging is only allowed on title bar (also if not visible)
var windowIsMaximized = window.WindowState == WindowState.Maximized;
////var isMouseOnTitlebar = Mouse.GetPosition(thumb).Y <= window.TitlebarHeight && window.TitlebarHeight > 0;
////if (!isMouseOnTitlebar && windowIsMaximized)
////{
//// return;
////}
// for the touch usage
UnsafeNativeMethods.ReleaseCapture();
if (windowIsMaximized)
{
var cursorXPos = cursorPos.x;
EventHandler windowOnStateChanged = null;
windowOnStateChanged = (sender, args) =>
{
//window.Top = 2;
//window.Left = Math.Max(cursorXPos - window.RestoreBounds.Width / 2, 0);
window.StateChanged -= windowOnStateChanged;
if (window.WindowState == WindowState.Normal)
{
Mouse.Capture(thumb, CaptureMode.Element);
}
};
window.StateChanged += windowOnStateChanged;
}
var criticalHandle = window.CriticalHandle;
// DragMove works too
// window.DragMove();
// instead this 2 lines
NativeMethods.SendMessage(criticalHandle, WM.SYSCOMMAND, (IntPtr)SC.MOUSEMOVE, IntPtr.Zero);
NativeMethods.SendMessage(criticalHandle, WM.LBUTTONUP, IntPtr.Zero, IntPtr.Zero);
}