private void CreateActionNodesRecursive(ref HierarchyNode <string, object> _parentNode, ref VisualiserBaseNode _parentVisualiserNode)
{
for (int i = 0; i < _parentNode.GetChildCount(); ++i)
{
var hierarchyNode = _parentNode.GetChildren()[i];
VisualiserBaseNode visualiserNode = new ActionNode(hierarchyNode, _weight: hierarchyNode.IsPartOfFoundPath() ? 1.0f : 0.0f);
_parentVisualiserNode.AddChild(visualiserNode);
CreateActionNodesRecursive(ref hierarchyNode, ref visualiserNode);
}
}
/// <summary>
/// Enumerates over the hierarchy items for the given hierarchy traversing into nested hierarchies.
/// </summary>
/// <param name="hierarchy">hierarchy to enumerate over.</param>
/// <param name="itemid">item id of the hierarchy</param>
/// <param name="recursionLevel">Depth of recursion. e.g. if recursion started with the Solution
/// node, then : Level 0 -- Solution node, Level 1 -- children of Solution, etc.</param>
/// <param name="visibleNodesOnly">true if only nodes visible in the Solution Explorer should
/// be traversed. false if all project items should be traversed.</param>
private void VisitHierarchyNodes(HierarchyNode node, int recursionLevel, bool visibleNodesOnly)
{
// Note: This code originated from "Solution Hierarchy Traversal Sample (C#)"
// https://msdn.microsoft.com/en-us/library/bb165347(v=vs.80).aspx
// In C:\Setups\Microsoft\Visual Studio\VS 2005\Visual Studio 2005 SDK\ ...
// VisualStudioIntegration\Samples\Project\CSharp\Example.SolutionHierarchyTraversal
//
// Check first if this node has a nested hierarchy. If so, then there really are two
// identities for this node: 1. hierarchy/itemid and 2. nestedHierarchy/nestedItemId.
// We will recurse and call VisitHierarchyNodes which will traverse this node using
// the inner nestedHierarchy/nestedItemId identity. Basically, if this returns a
// nested hierarchy, then the current node is just a shortcut to the nested hierarchy.
HierarchyNode nestedNode;
if (node.TryGetNestedHierarchy(out nestedNode))
{
this.VisitHierarchyNodes(nestedNode, recursionLevel, visibleNodesOnly);
}
else
{
// In VS 2015 and earlier, the Solution node enumerates ALL projects (including nested projects)
// when asking for FirstChild/NextSibling, but it doesn't do that for FirstVisibleChild/NextVisibleSibling.
// VS treats the actual hierarchy differently than the visible hierarchy, and the solution contains
// shortcuts to all the projects in the actual hierarchy. So if we're not restricted to visible nodes,
// then we can encounter nested projects twice as we traverse the hierarchy. We'll make sure
// we don't traverse through the same project twice. However, we can't restrict to visible items
// because we need to ensure that we get the "Miscellaneous Files" (e.g., external files opened
// in the solution), which may not be visible in the Solution Explorer.
//
// Note: currentItem can be null if we're visiting a physical folder (e.g., a Properties folder), a
// virtual folder (e.g., Solution Items or Miscellaneous Files), or some other node type that is
// not a solution, project or file type.
HierarchyItem currentItem = this.VisitHierarchyNode(node);
bool visitChildren = true;
if (currentItem != null)
{
visitChildren = currentItem.ItemType != HierarchyItemType.Project || !this.visitedProjects.Contains(currentItem.FileName);
if (visitChildren)
{
this.items.Add(currentItem);
}
}
if (visitChildren)
{
// Note: We'll push a null parent for miscellaneous files since they're not directly referenced by the solution.
bool pushCurrentItemAsAncestor = (currentItem != null && currentItem.IsContainer) ||
(currentItem == null && node.ItemType == VSConstants.GUID_ItemType_VirtualFolder && node.CanonicalName == "Miscellaneous Files");
if (pushCurrentItemAsAncestor)
{
this.ancestors.Push(currentItem);
}
try
{
recursionLevel++;
List <HierarchyNode> children = node.GetChildren(visibleNodesOnly).ToList();
foreach (HierarchyNode child in children)
{
this.VisitHierarchyNodes(child, recursionLevel, visibleNodesOnly);
}
}
finally
{
if (pushCurrentItemAsAncestor)
{
this.ancestors.Pop();
}
}
if (currentItem != null && currentItem.ItemType == HierarchyItemType.Project)
{
this.visitedProjects.Add(currentItem.FileName);
}
}
}
}
