private void HandleDragOverSection([NotNull] DragDataDescriptor descriptor, [NotNull] DragEventArgs e)
{
Debug.ArgumentNotNull(descriptor, nameof(descriptor));
Debug.ArgumentNotNull(e, nameof(e));
var source = GetDragSource(e.OriginalSource);
var targetSection = source as UI.TemplateDesigner.TemplateSection;
if (targetSection == null)
{
return;
}
if (targetSection.IsLastSection())
{
return;
}
if (targetSection == descriptor.Data)
{
return;
}
var position = e.GetPosition(targetSection);
var sy = position.Y < targetSection.ActualHeight / 2 ? 0 : targetSection.ActualHeight;
var p = targetSection.TranslatePoint(new Point(0, sy), this);
descriptor.TargetSection = targetSection.Section;
descriptor.PositionBefore = sy == 0;
SetAdorner((int)p.Y);
e.Effects = DragDropEffects.Move;
}
public void HandleMouseMove([NotNull] object sender, [NotNull] MouseEventArgs e)
{
Assert.ArgumentNotNull(sender, nameof(sender));
Assert.ArgumentNotNull(e, nameof(e));
if (!DragManager.IsDragStart(this, e, ref _origin))
{
return;
}
var sectionControl = sender as UI.TemplateDesigner.TemplateSection;
if (sectionControl != null && sectionControl.IsLastSection())
{
return;
}
var fieldControl = sender as UI.TemplateDesigner.TemplateField;
if (fieldControl != null && fieldControl.IsLastField())
{
return;
}
var descriptor = new DragDataDescriptor
{
Type = sender is UI.TemplateDesigner.TemplateSection ? @"section" : @"field",
Data = sender,
TemplateDesigner = this
};
var dragData = new DataObject(@"SitecoreTemplateDesigner", descriptor);
DragManager.DoDragDrop(this, dragData, DragDropEffects.Move);
SetAdorner(-1);
e.Handled = true;
}
private void HandleDragOverField([NotNull] DragDataDescriptor descriptor, [NotNull] DragEventArgs e)
{
Debug.ArgumentNotNull(descriptor, nameof(descriptor));
Debug.ArgumentNotNull(e, nameof(e));
var field = descriptor.Data as UI.TemplateDesigner.TemplateField;
if (field == null)
{
return;
}
var y = -1;
var source = GetDragSource(e.OriginalSource);
var targetSection = source as UI.TemplateDesigner.TemplateSection;
var targetField = source as UI.TemplateDesigner.TemplateField;
if (targetSection != null)
{
if (targetSection.IsLastSection())
{
return;
}
if (targetSection.Section == field.Field.Section)
{
return;
}
var fieldStack = targetSection.FieldStack;
if (fieldStack.Children.Count == 0)
{
return;
}
var element = fieldStack.Children[fieldStack.Children.Count - 1];
y = (int)element.TranslatePoint(new Point(0, 0), this).Y;
descriptor.TargetSection = targetSection.Section;
descriptor.Field = null;
}
else if (targetField != null)
{
if (targetField == field)
{
return;
}
if (targetField.IsLastField())
{
return;
}
var position = e.GetPosition(targetField);
var fy = position.Y < targetField.ActualHeight / 2 ? 0 : targetField.ActualHeight;
y = (int)targetField.TranslatePoint(new Point(0, fy), this).Y;
descriptor.TargetSection = targetField.Field.Section;
descriptor.Field = targetField.Field;
descriptor.PositionBefore = fy == 0;
}
if (y == -1)
{
return;
}
SetAdorner(y);
e.Effects = DragDropEffects.Move;
}
