/// <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, IFocusTemplateReadOnlyDictionary nodeTemplateTable, string propertyName)
{
bool IsValid = true;
IsValid &= SelectorType != null;
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);
}
private bool GetFirstCommentFrameSelection(IFocusSelectionFrame root, IList <FocusFrameSelectorList> selectorStack, out IFocusCommentFrame frame)
{
frame = null;
IFocusSelectableFrame SelectedFrame = null;
foreach (IFocusSelectableFrame Item in root.Items)
{
foreach (FocusFrameSelectorList SelectorList in selectorStack)
{
foreach (IFocusFrameSelector Selector in SelectorList)
{
if (Selector.SelectorType == NodeType)
{
if (Selector.SelectorName == Item.Name)
{
SelectedFrame = Item;
break;
}
}
}
if (SelectedFrame != null)
{
break;
}
}
if (SelectedFrame != null)
{
break;
}
}
if (SelectedFrame != null)
{
if (GetFirstCommentFrame(SelectedFrame.Content, selectorStack, out frame))
{
return(true);
}
}
return(false);
}
private bool GetFirstNamedFrameSelection(IFocusSelectionFrame root, string propertyName, IList <FocusFrameSelectorList> selectorStack, bool reverseSearch, ref int valueFrameIndex, out IFocusNamedFrame frame)
{
frame = null;
IFocusSelectableFrame SelectedFrame = null;
foreach (IFocusSelectableFrame Item in root.Items)
{
foreach (FocusFrameSelectorList SelectorList in selectorStack)
{
foreach (IFocusFrameSelector Selector in SelectorList)
{
if (Selector.SelectorType == NodeType)
{
if (Selector.SelectorName == Item.Name)
{
SelectedFrame = Item;
break;
}
}
}
if (SelectedFrame != null)
{
break;
}
}
if (SelectedFrame != null)
{
break;
}
}
if (SelectedFrame != null)
{
if (GetFirstNamedFrame(SelectedFrame.Content, propertyName, selectorStack, reverseSearch, ref valueFrameIndex, out frame))
{
return(true);
}
}
return(false);
}
