public static IEnumerable <MenuBase> ExpandMenuGroups(IEnumerable <MenuBase> items, MenuUtilities.MenuBaseExpander groupExpander)
{
if (items == null)
{
throw new ArgumentNullException("items");
}
if (groupExpander == null)
{
throw new ArgumentNullException("groupExpander");
}
foreach (MenuBase menuBase1 in items)
{
MenuGroup group = menuBase1 as MenuGroup;
if (group != null)
{
foreach (MenuBase menuBase2 in MenuUtilities.ExpandMenuGroups(groupExpander(group), groupExpander))
{
yield return(menuBase2);
}
}
else
{
yield return(menuBase1);
}
}
}
public static IEnumerable <MenuBase> MergeMenuGroups(MenuUtilities.MenuBaseEnumerator rootItemEnumerator)
{
List <MenuBase> list = new List <MenuBase>();
Dictionary <string, MenuGroup> dictionary = new Dictionary <string, MenuGroup>();
foreach (MenuBase menuBase in rootItemEnumerator())
{
MenuGroup groupToMergeIn = menuBase as MenuGroup;
if (groupToMergeIn != null)
{
string key = groupToMergeIn.Name + groupToMergeIn.HasDropDown.ToString();
if (dictionary.ContainsKey(key))
{
MenuGroup existingGroup = dictionary[key];
int index = list.IndexOf((MenuBase)existingGroup);
if (index >= 0)
{
list.RemoveAt(index);
}
if (index < list.Count)
{
list.Insert(index, (MenuBase)MenuUtilities.MergeGroups(existingGroup, groupToMergeIn));
}
else
{
list.Add((MenuBase)MenuUtilities.MergeGroups(existingGroup, groupToMergeIn));
}
}
else
{
dictionary.Add(key, groupToMergeIn);
list.Add((MenuBase)groupToMergeIn);
}
}
else
{
list.Add(menuBase);
}
}
return((IEnumerable <MenuBase>)list);
}
private static MenuGroup MergeGroups(MenuGroup existingGroup, MenuGroup groupToMergeIn)
{
MenuGroup menuGroup1 = new MenuGroup(existingGroup.Name, existingGroup.DisplayName);
menuGroup1.HasDropDown = existingGroup.HasDropDown;
Dictionary <string, MenuGroup> dictionary = new Dictionary <string, MenuGroup>();
foreach (MenuBase menuBase in (Collection <MenuBase>)existingGroup.Items)
{
MenuGroup menuGroup2 = menuBase as MenuGroup;
if (menuGroup2 != null)
{
string key = menuGroup2.Name + menuGroup2.HasDropDown.ToString();
dictionary.Add(key, menuGroup2);
}
menuGroup1.Items.Add(menuBase);
}
foreach (MenuBase menuBase in (Collection <MenuBase>)groupToMergeIn.Items)
{
MenuGroup groupToMergeIn1 = menuBase as MenuGroup;
if (groupToMergeIn1 != null)
{
string key = groupToMergeIn1.Name + groupToMergeIn1.HasDropDown.ToString();
if (dictionary.ContainsKey(key))
{
menuGroup1.Items.Remove((MenuBase)dictionary[key]);
menuGroup1.Items.Add((MenuBase)MenuUtilities.MergeGroups(dictionary[key], groupToMergeIn1));
}
else
{
menuGroup1.Items.Add(menuBase);
}
}
else
{
menuGroup1.Items.Add(menuBase);
}
}
return(menuGroup1);
}
