private DirectoryEntry LoadNewNodeChildren(IDictionary <RelativePath, DirectoryEntry> previouslyLoadedChildren,
DirectoryNodeViewModel newParentDirectory)
{
var directoryEntry = previouslyLoadedChildren.GetValue(new RelativePath(newParentDirectory.RelativePath));
if (directoryEntry == null)
{
directoryEntry = _nodeViewModelLoader.LoadChildren(newParentDirectory);
}
return(directoryEntry);
}
public DirectoryEntry LoadChildren(DirectoryNodeViewModel node)
{
var tcs = new TaskCompletionSource <DirectoryEntry>();
var request = new GetDirectoryEntriesRequest {
ProjectPath = node.GetProjectPath().Value,
DirectoryRelativePath = node.RelativePath
};
_typedRequestProcessProxy.RunUnbufferedAsync(request,
response => { LoadChildrenCallback(tcs, response); },
response => { LoadChildrenErrorCallback(tcs, response); });
return(tcs.Task.Result);
}
private void LoadDirectoryNodeChildren(DirectoryNodeViewModel directoryNode)
{
if (directoryNode.ChildrenLoaded)
{
return;
}
var directoryEntry = _nodeViewModelLoader.LoadChildren(directoryNode);
if (directoryEntry == null)
{
return;
}
var children = directoryEntry.Entries
.Select(childEntry => {
var node = IncrementalHierarchyBuilder.CreateNodeViewModel(_nodeTemplateFactory, childEntry, directoryNode);
// Initialize template icon if needed
if (node is FileNodeViewModel)
{
if (node.Template.Icon == null)
{
var extension = PathHelpers.GetExtension(childEntry.Name);
Invariants.Assert(extension != null);
node.Template.Icon = _imageSourceFactory.GetFileExtensionIcon(extension);
}
}
return(node);
})
.ToList();
foreach (var child in children)
{
child.ItemId = _nodes.MaxItemId + 1;
_nodes.AddNode(child);
}
directoryNode.SetChildren(children);
}
public DirectoryEntry LoadChildren(DirectoryNodeViewModel node)
{
// "fake" root node does not support loading children dynamically (they should have been set manually)
if (string.IsNullOrEmpty(node.FullPathString))
{
return(null);
}
var tcs = new TaskCompletionSource <DirectoryEntry>();
var request = new GetDirectoryEntriesRequest {
ProjectPath = node.GetProjectPath().Value,
DirectoryRelativePath = node.RelativePath
};
_typedRequestProcessProxy.RunUnbufferedAsync(request, RunAsyncOptions.Default,
response => { LoadChildrenCallback(tcs, response); },
response => { LoadChildrenErrorCallback(tcs, response); });
return(tcs.Task.Result);
}
public LoadChildrenResult(DirectoryNodeViewModel node, DirectoryEntry entry)
{
Node = node;
Entry = entry;
}
