private void AddContextMenuToTreeView(TreeViewBase treeView)
{
treeView.RightClickMenuRequested = () =>
{
var menu = new GenericMenu();
menu.AddItem(new GUIContent("Create"), false,
() => _rightClickCreateMenuClickedSubject.OnNext(Empty.Default));
if (treeView.HasSelection() && treeView.GetRows().Count >= 2)
{
menu.AddItem(new GUIContent("Remove"), false,
() => _rightClickRemoveMenuClickedSubject.OnNext(Empty.Default));
}
else
{
menu.AddDisabledItem(new GUIContent("Remove"));
}
return(menu);
};
}
public static IObservable <IList <int> > OnSelectionChangedAsObservable(this TreeViewBase self)
{
return(new AnonymousObservable <IList <int> >(observer =>
{
void OnNext(IList <int> ids)
{
try
{
observer.OnNext(ids);
}
catch (Exception e)
{
observer.OnError(e);
}
}
self.OnSelectionChanged += OnNext;
return new Disposable(() => self.OnSelectionChanged -= OnNext);
}));
}
public static IObservable <Empty> OnItemClearedAsObservable(this TreeViewBase self)
{
return(new AnonymousObservable <Empty>(observer =>
{
void OnNext()
{
try
{
observer.OnNext(Empty.Default);
}
catch (Exception e)
{
observer.OnError(e);
}
}
self.OnItemsCleared += OnNext;
return new Disposable(() => self.OnItemsCleared -= OnNext);
}));
}
public static IObservable <TreeViewItem> OnItemRemovedAsObservable(this TreeViewBase self)
{
return(new AnonymousObservable <TreeViewItem>(observer =>
{
void OnNext(TreeViewItem item)
{
try
{
observer.OnNext(item);
}
catch (Exception e)
{
observer.OnError(e);
}
}
self.OnItemRemoved += OnNext;
return new Disposable(() => self.OnItemRemoved -= OnNext);
}));
}