public void Drop(IDropInfo dropInfo)
{
LauncherCommandInfoViewModel SourceCommandItem = dropInfo.Data as LauncherCommandInfoViewModel;
LauncherCommandInfoViewModel TargetCommandItem = dropInfo.TargetItem as LauncherCommandInfoViewModel;
MenuTreeNodeViewModel SourceMenuItem = dropInfo.Data as MenuTreeNodeViewModel;
MenuTreeNodeViewModel TargetMenuItem = dropInfo.TargetItem as MenuTreeNodeViewModel;
ObservableCollection <MenuTreeNodeViewModel> Targets = dropInfo.TargetCollection as ObservableCollection <MenuTreeNodeViewModel>;
List <object> DataList = dropInfo.Data as List <object>;
List <LauncherCommandInfoViewModel> SourceCommandItems = null;
List <MenuTreeNodeViewModel> SourceMenuItems = null;
if (DataList != null && DataList.Count > 0)
{
if (DataList[0] is LauncherCommandInfoViewModel)
{
SourceCommandItems = new List <LauncherCommandInfoViewModel>(DataList.Select(x => (LauncherCommandInfoViewModel)x));
}
if (DataList[0] is MenuTreeNodeViewModel)
{
SourceMenuItems = new List <MenuTreeNodeViewModel>(DataList.Select(x => (MenuTreeNodeViewModel)x));
}
}
else
{
if (SourceCommandItem != null)
{
SourceCommandItems = new List <LauncherCommandInfoViewModel>()
{
SourceCommandItem
};
}
if (SourceMenuItem != null)
{
SourceMenuItems = new List <MenuTreeNodeViewModel>();
if (SelectedMenuNodes.Count > 1)
{
SourceMenuItems.AddRange(SelectedMenuNodes);
}
else
{
SourceMenuItems.Add(SourceMenuItem);
}
}
}
if (Targets != null)
{
if (SourceCommandItems != null)
{
DropCommandItemsToMenuTree(dropInfo, SourceCommandItems, TargetMenuItem, Targets);
}
if (SourceMenuItems != null)
{
DropMenuItemsToMenuTree(dropInfo, SourceMenuItems, TargetMenuItem, Targets);
}
SelectedMenuNodes.Clear();
}
}
public void DragOver(IDropInfo dropInfo)
{
LauncherCommandInfoViewModel SourceCommandItem = dropInfo.Data as LauncherCommandInfoViewModel;
LauncherCommandInfoViewModel TargetCommandItem = dropInfo.TargetItem as LauncherCommandInfoViewModel;
MenuTreeNodeViewModel SourceMenuItem = dropInfo.Data as MenuTreeNodeViewModel;
MenuTreeNodeViewModel TargetMenuItem = dropInfo.TargetItem as MenuTreeNodeViewModel;
ObservableCollection <MenuTreeNodeViewModel> Targets = dropInfo.TargetCollection as ObservableCollection <MenuTreeNodeViewModel>;
List <object> DataList = dropInfo.Data as List <object>;
List <LauncherCommandInfoViewModel> SourceCommandItems = null;
List <MenuTreeNodeViewModel> SourceMenuItems = null;
if (DataList != null && DataList.Count > 0)
{
if (DataList[0] is LauncherCommandInfoViewModel)
{
SourceCommandItems = new List <LauncherCommandInfoViewModel>(DataList.Select(x => (LauncherCommandInfoViewModel)x));
}
else if (DataList[0] is MenuTreeNodeViewModel)
{
SourceMenuItems = new List <MenuTreeNodeViewModel>(DataList.Select(x => (MenuTreeNodeViewModel)x));
}
}
if (Targets != null)
{
if (SourceCommandItem != null || SourceCommandItems != null)
{
dropInfo.Effects = DragDropEffects.Copy;
}
else if (SourceMenuItem != null || SourceMenuItems != null)
{
dropInfo.Effects = DragDropEffects.Move;
}
if (dropInfo.InsertPosition == RelativeInsertPosition.None || dropInfo.InsertPosition.HasFlag(RelativeInsertPosition.TargetItemCenter))
{
dropInfo.DropTargetAdorner = DropTargetAdorners.Highlight;
if (TargetMenuItem != null && TargetMenuItem.HasExecutableNode)
{
dropInfo.DropTargetAdorner = null;
dropInfo.Effects = DragDropEffects.None;
}
}
else if (dropInfo.InsertPosition.HasFlag(RelativeInsertPosition.BeforeTargetItem) || dropInfo.InsertPosition.HasFlag(RelativeInsertPosition.AfterTargetItem))
{
dropInfo.DropTargetAdorner = DropTargetAdorners.Insert;
}
}
}