internal static MenuModelItem RequestItem(IEnumerable <MenuModelItem> rootItems, string[] itemNameTreePath, Action <MenuModelItem> addAction, Action <MenuModelItem> configureAction)
{
// Check if such item already exists. Returns it, if it does.
{
MenuModelItem existingItem = GetItemDeep(rootItems, itemNameTreePath);
if (existingItem != null)
{
return(existingItem);
}
}
// Create an item that matches the specified full name
MenuModelItem resultItem = null;
{
// Create the root item
MenuModelItem item = rootItems.FirstOrDefault(c => string.Equals(c.Name, itemNameTreePath[0], StringComparison.InvariantCultureIgnoreCase));
if (item == null)
{
item = new MenuModelItem(itemNameTreePath[0]);
if (configureAction != null)
{
configureAction(item);
}
addAction(item);
}
// Create subsequent items
resultItem = item;
for (int i = 1; i < itemNameTreePath.Length; i++)
{
resultItem = item.Items.FirstOrDefault(c => string.Equals(c.Name, itemNameTreePath[i], StringComparison.InvariantCultureIgnoreCase));
if (resultItem == null)
{
resultItem = new MenuModelItem(itemNameTreePath[i]);
if (configureAction != null)
{
configureAction(resultItem);
}
item.AddItem(resultItem);
}
item = resultItem;
}
}
return(resultItem);
}
internal static MenuModelItem GetItemDeep(IEnumerable <MenuModelItem> rootItems, string[] itemNameTreePath)
{
IEnumerable <MenuModelItem> itemCollection = rootItems;
MenuModelItem item = null;
for (int nameIndex = 0; nameIndex < itemNameTreePath.Length; nameIndex++)
{
item = itemCollection.FirstOrDefault(i => i.Name == itemNameTreePath[nameIndex]);
if (item == null)
{
return(null);
}
itemCollection = item.Items;
}
return(item);
}
public void RemoveItem(MenuModelItem item)
{
this.RemoveItems(new[] { item });
}
public void AddItem(MenuModelItem item)
{
this.AddItems(new[] { item });
}
