/// <summary>
/// Create an instance of <seealso cref="ResourceTypeItemViewModel"/> class.
/// </summary>
/// <param name="resourceKeys"><seealso cref="ResourceTypeKeys"/> object.</param>
/// <param name="dataSource">The logging data source.</param>
/// <param name="parent">The parent menu item view model object.</param>
public ResourceTypeItemViewModel(ResourceKeys resourceKeys, Lazy <LoggingDataSource> dataSource, MenuItemViewModel parent) : base(parent)
{
_dataSource = dataSource;
ResourceTypeKeys = resourceKeys;
Header = ResourceTypeKeys.Type;
IsSubmenuPopulated = ResourceTypeKeys.Keys?.FirstOrDefault() == null;
// MenuItem determins the MenuRole of SubmenuItem or SubMenuItemHeader by checking if it has sub menuitems.
// Adding an invisible item for delay load menu items so that it is recognized as SubMenuItemHeader role.
// By setting this role, popup is visible. Otherwise popup is invisible.
if (!IsSubmenuPopulated)
{
MenuItems.Add(MenuItemViewModel.InvisibleItem);
}
}
/// <summary> /// Child menu item calls parent's bubbling handler when it is clicked. /// </summary> /// <param name="originalSource">The original menu item that fires the selected event.</param> protected virtual void CommandBubblingHandler(MenuItemViewModel originalSource) => MenuItemParent?.CommandBubblingHandler(originalSource);
