/// <summary>
/// Checks that a frame selector is correctly constructed.
/// </summary>
/// <param name="nodeType">Type of the node this frame selector can describe.</param>
/// <param name="nodeTemplateTable">Table of templates with all frames.</param>
/// <param name="propertyName">The property for which frames can be selected.</param>
public virtual bool IsValid(Type nodeType, FocusTemplateReadOnlyDictionary nodeTemplateTable, string propertyName)
{
bool IsValid = true;
IsValid &= SelectorType != Type.Missing;
IsValid &= !string.IsNullOrEmpty(SelectorName);
Type ChildInterfaceType, ChildNodeType;
IsValid &= NodeTreeHelperChild.IsChildNodeProperty(nodeType, propertyName, out ChildInterfaceType) ||
NodeTreeHelperOptional.IsOptionalChildNodeProperty(nodeType, propertyName, out ChildInterfaceType) ||
NodeTreeHelperList.IsNodeListProperty(nodeType, propertyName, out ChildInterfaceType) ||
NodeTreeHelperBlockList.IsBlockListProperty(nodeType, propertyName, /*out ChildInterfaceType,*/ out ChildNodeType) ||
(NodeTreeHelper.IsBlockType(nodeType) && propertyName == nameof(BaseNode.IBlock.NodeList));
IsValid &= nodeTemplateTable.ContainsKey(SelectorType);
IFocusNodeTemplate Template = nodeTemplateTable[SelectorType] as IFocusNodeTemplate;
Debug.Assert(Template != null);
IFocusSelectionFrame AsSelectionFrame = Template.Root as IFocusSelectionFrame;
IsValid &= AsSelectionFrame != null;
if (IsValid)
{
IFocusSelectableFrame SelectedItem = null;
foreach (IFocusSelectableFrame Item in AsSelectionFrame.Items)
{
if (Item.Name == SelectorName)
{
SelectedItem = Item;
break;
}
}
IsValid &= SelectedItem != null;
}
Debug.Assert(IsValid);
return(IsValid);
}
/// <summary>
/// Initializes a new instance of the <see cref="FocusTemplateSet"/> class.
/// </summary>
/// <param name="nodeTemplateTable">Templates for nodes by their type.</param>
/// <param name="blockTemplateTable">Templates for blocks of nodes.</param>
public FocusTemplateSet(FocusTemplateReadOnlyDictionary nodeTemplateTable, FocusTemplateReadOnlyDictionary blockTemplateTable)
: base(nodeTemplateTable, blockTemplateTable)
{
}
