private void SelectRangeFromAnchor(SelectionModel manager, IndexPath index, bool select)
{
Log.Comment("SelectRangeFromAnchor " + index + " select: " + select.ToString());
if (select)
{
manager.SelectRangeFromAnchorTo(index);
}
else
{
manager.DeselectRangeFromAnchorTo(index);
}
}
protected override void OnKeyUp(KeyRoutedEventArgs e)
{
var indexPath = GetIndexPath();
Debug.WriteLine("OnKeyUp:" + indexPath.ToString());
if (SelectionModel != null)
{
if (e.Key == VirtualKey.Escape)
{
SelectionModel.ClearSelection();
}
else if (e.Key == VirtualKey.Space)
{
SelectionModel.SelectAt(indexPath);
}
else if (!SelectionModel.SingleSelect)
{
var isShiftPressed = Window.Current.CoreWindow.GetAsyncKeyState(VirtualKey.Shift).HasFlag(Windows.UI.Core.CoreVirtualKeyStates.Down);
var isCtrlPressed = Window.Current.CoreWindow.GetAsyncKeyState(VirtualKey.Control).HasFlag(Windows.UI.Core.CoreVirtualKeyStates.Down);
if (e.Key == VirtualKey.A && isCtrlPressed)
{
SelectionModel.SelectAll();
}
else if (isCtrlPressed && e.Key == VirtualKey.Space)
{
if (SelectionModel.IsSelectedAt(indexPath).Value)
{
SelectionModel.DeselectAt(indexPath);
}
else
{
SelectionModel.SelectAt(indexPath);
}
}
else if (isShiftPressed)
{
SelectionModel.SelectRangeFromAnchorTo(GetIndexPath());
}
}
}
base.OnKeyUp(e);
}
protected override void OnPointerPressed(PointerRoutedEventArgs e)
{
if (!e.Handled)
{
var indexPath = GetIndexPath();
Debug.WriteLine("OnPointerPressed:" + indexPath.ToString());
if (SelectionModel != null)
{
if (e.KeyModifiers.HasFlag(VirtualKeyModifiers.Shift) && !SelectionModel.SingleSelect)
{
if (e.KeyModifiers.HasFlag(VirtualKeyModifiers.Control))
{
SelectionModel.DeselectRangeFromAnchorTo(GetIndexPath());
}
else
{
SelectionModel.SelectRangeFromAnchorTo(GetIndexPath());
}
}
else if (e.KeyModifiers.HasFlag(VirtualKeyModifiers.Control))
{
var path = GetIndexPath();
if (SelectionModel.IsSelectedAt(path).Value)
{
SelectionModel.SelectAt(path);
}
else
{
SelectionModel.SelectAt(path);
}
}
else
{
SelectionModel.SelectAt(GetIndexPath());
this.Focus(FocusState.Keyboard);
}
}
e.Handled = true;
base.OnPointerPressed(e);
}
}