public static bool IsDragThresholdReached(this IUIInput input, IUIInput input2)
{
var minDragDist = getMiniumDragDistance(input.InputType);
return
(input.IsSameSource(input2) && input.IsValidPositionForLisView(true) &&
(
Math.Abs(input.Position.X - input2.Position.X) > minDragDist.Width ||
Math.Abs(input.Position.Y - input2.Position.Y) > minDragDist.Height
));
}
public static bool IsWithin(this IUIInput input, IUIInput input2, double x, double y)
{
return
(input.IsSameSource(input2) && input.IsValidPositionForLisView(true) &&
(
Math.Abs(input.Position.X - input2.Position.X) < x &&
Math.Abs(input.Position.Y - input2.Position.Y) < y
)
);
}
public void UpdateInputPressed(IUIInput input)
{
if (_dragState == DragState.Released)
{
StartInput = InvalidInput.Instance;
_dragState = DragState.Normal;
}
if (!_isDragging && input.IsValidPositionForLisView(true))
{
if (input.ClickCount <= 1) //Touch/Stylus input 's ClickCount = 0
{
//When touch and hold it raise a mouse right click command, skip it.
if (_dragState == DragState.Touched && input.InputType == UIInputType.MouseRight)
{
return;
}
//Console.WriteLine(input);
StartInput = input;
_isDragging = false;
switch (input.InputType)
{
case UIInputType.Touch:
_startTouchInput = input;
_dragState = DragState.Touched;
_touchTime = DateTime.UtcNow;
//input.EventArgs.Handled = true;
break;
default:
switch (_dragState)
{
case DragState.Touched:
break;
case DragState.Normal:
case DragState.Released:
IsDragging = false;
_dragState = DragState.Pressed;
break;
}
break;
}
}
}
//Console.WriteLine(String.Format("UpdateInputPressed - {0}", _dragState));
}