public void Add(ICharacter character)
{
if (character != null)
{
var index = this.itemList.IndexOf(this.currentItem);
while (this.itemList.Count != index + 1)
{
this.itemList.RemoveAt(this.itemList.Count - 1);
}
this.itemList.Add(new CharacterNavigatorItem(character));
if (this.currentItem != null)
{
this.currentItem.IsCurrent = false;
}
this.currentItem = this.itemList.Last();
this.currentItem.IsCurrent = true;
this.currentCharacter = this.currentItem.Character;
while (this.itemList.Count >= this.MaximumCount)
{
this.itemList.RemoveAt(0);
}
this.NotifyOfPropertyChange(nameof(Count));
this.NotifyOfPropertyChange(nameof(CanBackward));
this.NotifyOfPropertyChange(nameof(CanForward));
CommandManager.InvalidateRequerySuggested();
}
}
public void Clear()
{
if (this.currentItem != null)
{
this.currentItem.IsCurrent = false;
}
this.currentItem = null;
this.currentCharacter = null;
this.itemList.Clear();
this.NotifyOfPropertyChange(nameof(Count));
this.NotifyOfPropertyChange(nameof(CanBackward));
this.NotifyOfPropertyChange(nameof(CanForward));
CommandManager.InvalidateRequerySuggested();
}