public int Create(ContextMenuProperties item)
{
Logger.Debug("Creating context menu item");
if (item.Id >= 0 && FindItemById(item.Id) != null)
{
throw new Exception(string.Format("An item with the id {0} already exists", item.Id));
}
if (item.Id < 0)
{
item.Id = ++_id;
}
if (item.Contexts == null)
{
item.Contexts = new List <string> {
"page"
};
}
if (string.IsNullOrEmpty(item.Title))
{
throw new Exception("Title is required");
}
ContextMenuProperties parent = null;
if (item.ParentId >= 0)
{
parent = FindItemById(item.ParentId);
if (parent == null)
{
throw new Exception(string.Format("Parent item with id {0} does not exists", item.ParentId));
}
}
if (parent != null)
{
if (parent.ChildItems == null)
{
parent.ChildItems = new List <ContextMenuProperties>();
}
parent.ChildItems.Add(item);
}
else
{
lock (Lock)
{
_items.Add(item);
}
}
return(item.Id);
}
private bool VisitItem(ContextMenuProperties item, Predicate <ContextMenuProperties> shouldStop)
{
if (shouldStop(item))
{
return(true);
}
if (item.ChildItems != null && item.ChildItems.Count > 0)
{
return(VisitItems(item.ChildItems, shouldStop));
}
return(false);
}
private ContextMenuProperties FindItemById(int id)
{
ContextMenuProperties item = null;
lock (_items)
{
VisitItems(_items, i =>
{
if (i.Id == id)
{
item = i;
return(true);
}
return(false);
});
}
return(item);
}