/// <summary>
/// Creates and initializes a new instance of a <see cref="ReadOnlyController"/> object.
/// </summary>
/// <param name="nodeIndex">Index of the root of the node tree.</param>
public static ReadOnlyController Create(IReadOnlyRootNodeIndex nodeIndex)
{
ReadOnlyController Controller = new ReadOnlyController();
Controller.SetRoot(nodeIndex);
Controller.SetInitialized();
return(Controller);
}
private protected virtual void SetRoot(IReadOnlyRootNodeIndex rootIndex)
{
Debug.Assert(!IsInitialized); // Must be called during initialization
IReadOnlyPlaceholderNodeState State = CreateRootNodeState(rootIndex);
RootIndex = rootIndex;
RootState = State;
AddState(RootIndex, State);
// Recursively build all states, starting from the root.
BuildStateTable(null, null, rootIndex, State);
}
/// <summary>
/// Creates a IxxxPlaceholderNodeState object.
/// </summary>
private protected override IReadOnlyPlaceholderNodeState CreateRootNodeState(IReadOnlyRootNodeIndex nodeIndex)
{
ControllerTools.AssertNoOverride(this, Type.FromTypeof <LayoutController>());
return(new LayoutPlaceholderNodeState <ILayoutInner <ILayoutBrowsingChildIndex> >((ILayoutRootNodeIndex)nodeIndex));
}
/// <summary>
/// Creates a IxxxPlaceholderNodeState object.
/// </summary>
private protected override IReadOnlyPlaceholderNodeState CreateRootNodeState(IReadOnlyRootNodeIndex nodeIndex)
{
ControllerTools.AssertNoOverride(this, typeof(FocusController));
return(new FocusPlaceholderNodeState <IFocusInner <IFocusBrowsingChildIndex> >((IFocusRootNodeIndex)nodeIndex));
}
/// <summary>
/// Creates a IxxxPlaceholderNodeState object.
/// </summary>
private protected virtual IReadOnlyPlaceholderNodeState CreateRootNodeState(IReadOnlyRootNodeIndex nodeIndex)
{
ControllerTools.AssertNoOverride(this, Type.FromTypeof <ReadOnlyController>());
return(new ReadOnlyPlaceholderNodeState <IReadOnlyInner <IReadOnlyBrowsingChildIndex> >(nodeIndex));
}
/// <summary>
/// Creates a IxxxPlaceholderNodeState object.
/// </summary>
private protected override IReadOnlyPlaceholderNodeState CreateRootNodeState(IReadOnlyRootNodeIndex nodeIndex)
{
ControllerTools.AssertNoOverride(this, Type.FromTypeof <WriteableController>());
return(new WriteablePlaceholderNodeState <IWriteableInner <IWriteableBrowsingChildIndex> >((IWriteableRootNodeIndex)nodeIndex));
}