/// <summary>
/// Checks whether the specified tree node represents the xml element.
/// </summary>
static bool NodeHasElement(WixTreeNode node, XmlElement element)
{
if (node != null)
{
return(Object.ReferenceEquals(element, node.XmlElement));
}
return(false);
}
/// <summary>
/// The selected element's attributes have changed so refresh the node.
/// </summary>
public void RefreshSelectedElement()
{
WixTreeNode selectedNode = (WixTreeNode)SelectedNode;
if (selectedNode != null)
{
selectedNode.Refresh();
}
}
/// <summary>
/// Gets the allowed child elements for the current selected node.
/// </summary>
StringCollection GetAllowedChildElements(object owner)
{
WixTreeNode node = owner as WixTreeNode;
WixPackageFilesTreeView treeView = owner as WixPackageFilesTreeView;
if (node != null)
{
treeView = node.TreeView as WixPackageFilesTreeView;
}
if (treeView != null)
{
return(treeView.AllowedChildElements);
}
return(new StringCollection());
}
/// <summary>
/// Adds a new element to the tree.
/// </summary>
/// <remarks>If no node is currently selected this element is added as a
/// root node.</remarks>
public void AddElement(XmlElement element)
{
WixTreeNode selectedNode = (WixTreeNode)SelectedNode;
if (selectedNode == null)
{
WixTreeNodeBuilder.AddNode(this, element);
}
else
{
if (selectedNode.IsInitialized)
{
WixTreeNodeBuilder.AddNode(selectedNode, element);
}
else
{
// Initializing the node will add all the child elements.
selectedNode.PerformInitialization();
}
}
}
/// <summary>
/// Finds the node that represents the specified xml element.
/// </summary>
/// <remarks>
/// This currently looks in nodes that have been opened. Really it
/// should explore the entire tree, but child nodes are only added if the
/// node is expanded.
/// </remarks>
WixTreeNode FindNode(TreeNodeCollection nodes, XmlElement element)
{
foreach (ExtTreeNode node in nodes)
{
WixTreeNode wixTreeNode = node as WixTreeNode;
if (wixTreeNode != null)
{
if (NodeHasElement(wixTreeNode, element))
{
return(wixTreeNode);
}
else
{
WixTreeNode foundNode = FindNode(wixTreeNode.Nodes, element);
if (foundNode != null)
{
return(foundNode);
}
}
}
}
return(null);
}
/// <summary>
/// Checks whether the specified tree node represents the xml element.
/// </summary>
static bool NodeHasElement(WixTreeNode node, XmlElement element)
{
if (node != null) {
return Object.ReferenceEquals(element, node.XmlElement);
}
return false;
}
