/// <summary>
/// Check if the specified move is valid. If the move is valid, a null
/// string is returned, otherwise a string describing the problem is
/// returned.
/// </summary>
public String MoveCheck(KwsBrowserNode srcNode, KwsBrowserFolderNode dstFolder, String dstName, int dstIndex)
{
String dstID = MakeIDForNodeName(srcNode, dstName);
if ((srcNode is KwsBrowserFolderNode) && ((KwsBrowserFolderNode)srcNode).PermanentFlag)
return "cannot move or rename this folder";
if (srcNode is KwsBrowserKwsNode && dstFolder.IsRoot())
return "workspaces must be in folders";
if (srcNode is KwsBrowserKwsNode && dstID != srcNode.ID)
return "cannot change workspace ID";
if (srcNode is KwsBrowserFolderNode && !KwsBrowserFolderNode.IsValidFolderName(dstName))
return "invalid destination name";
if (srcNode == dstFolder || dstFolder.IsDescendantOf(srcNode)) return "invalid move";
bool reindexFlag = (dstFolder.GetNodeByID(dstID) == srcNode);
if (!reindexFlag && dstFolder.GetNodeByID(dstID) != null)
return "destination already exists";
if (!dstFolder.IsIndexValidForInsert(srcNode, dstIndex))
return "invalid destination index";
return null;
}
/// <summary>
/// Add a folder with the name specified at the end of the folder
/// specified. Throw an exception on error.
/// </summary>
public KwsBrowserFolderNode AddFolder(KwsBrowserFolderNode dstFolder, String name)
{
if (!KwsBrowserFolderNode.IsValidFolderName(name)) throw new Exception("invalid folder name");
KwsBrowserFolderNode node = new KwsBrowserFolderNode(name);
if (dstFolder.GetNodeByID(node.ID) != null) throw new Exception("destination already exists");
dstFolder.AddNode(node, dstFolder.FolderNodes.Count);
return node;
}
/// <summary>
/// Move the node at the source specified to the destination specified
/// with the index specified. Throw an exception on error.
/// </summary>
public void Move(KwsBrowserNode srcNode, KwsBrowserFolderNode dstFolder, String dstName, int dstIndex)
{
String MoveCheckRes = MoveCheck(srcNode, dstFolder, dstName, dstIndex);
if (MoveCheckRes != null) throw new Exception(MoveCheckRes);
// Adjust the destination index if we're moving the source node
// to the last index of a different folder than its parent.
if (dstFolder.GetNodeByID(srcNode.ID) == null &&
dstIndex + 1 == dstFolder.KwsNodes.Count)
{
dstIndex++;
}
srcNode.Parent.RemoveNode(srcNode);
if (srcNode is KwsBrowserFolderNode) ((KwsBrowserFolderNode)srcNode).FolderName = dstName;
dstFolder.AddNode(srcNode, dstIndex);
// The workspace list has changed.
m_wm.OutlookBroker.OnKwsListChanged();
}
/// <summary>
/// Request the creation of a folder. Return the node of the created folder.
/// Warning: UpdateTvWorkspacesList() must be called after a call to this
/// method.
/// </summary>
public KwsBrowserFolderNode RequestCreateFolder(KwsBrowserFolderNode parent)
{
// We're changing the WM state.
m_wm.SetDirty();
// Generate a default folder name.
String baseName = "New folder";
String name = baseName;
int count = 0;
while (parent.GetNodeByID("f_" + name) != null) name = baseName + " (" + ++count + ")";
// Insert the node in the browser.
return Browser.AddFolder(parent, name);
}
