public override void Update(IActionContext context, ref ActionPresentation presentation)
{
base.Update(context, ref presentation);
bool anyHasThreadHandler = false;
for (int i = 0; i < context.SelectedResources.Count; i++)
{
string resType = context.SelectedResources [i].Type;
IResourceThreadingHandler threadingHandler = Core.PluginLoader.GetResourceThreadingHandler(resType);
if (threadingHandler != null)
{
IResource threadRoot = ConversationBuilder.GetConversationRoot(context.SelectedResources [i]);
if (threadingHandler.CanExpandThread(threadRoot, ThreadExpandReason.Enumerate))
{
anyHasThreadHandler = true;
break;
}
}
}
if (!anyHasThreadHandler)
{
if (context.Kind == ActionContextKind.MainMenu)
{
presentation.Enabled = false;
}
else
{
presentation.Visible = false;
}
}
}
public bool CanExpandThread(IResource res, ThreadExpandReason reason)
{
IResourceThreadingHandler handler = GetResourceThreadingHandler(res);
if (handler != null)
{
return(handler.CanExpandThread(res, reason));
}
return(false);
}
protected override void AddResourceNodes()
{
_conversationNodeMap = new IntHashTable();
foreach (IResource res in _resourceList.ValidResources)
{
ConversationNode node = GetConversationNode(res);
node.InList = true;
}
ArrayList topLevelNodes = ArrayListPool.Alloc();
try
{
foreach (ConversationNode node in _conversationRoots)
{
FillTopLevelNodes(topLevelNodes, node);
}
if (_lastComparer != null)
{
topLevelNodes.Sort(new ConversationNodeComparer(_lastComparer));
}
foreach (ConversationNode node in topLevelNodes)
{
JetListViewNode lvNode = AddListViewNode(_listView.Nodes, node);
if (node.Children != null || _threadingHandler.CanExpandThread(node.Resource, ThreadExpandReason.Expand))
{
lvNode.HasChildren = true;
}
}
}
finally
{
ArrayListPool.Dispose(topLevelNodes);
}
_listView.ChildrenRequested += HandleChildrenRequested;
_listView.NodeCollection.NodeExpandChanging += HandleExpandChanging;
}
