/// <summary>
/// Removes a Navigation Path.
/// </summary>
/// <param name="path">The Navigation Path to remove.</param>
/// <returns>True if the Path is removed successfully.</returns>
/// <exception cref="ArgumentNullException">If <paramref name="path"/> is <c>null</c>.</exception>
public bool RemoveNavigationPath(NavigationPath path)
{
if(path == null) throw new ArgumentNullException("path");
lock(this) {
List<NavigationPath> paths = new List<NavigationPath>(GetAllNavigationPaths());
NavigationPathComparer comp = new NavigationPathComparer();
for(int i = 0; i < paths.Count; i++) {
if(comp.Compare(path, paths[i]) == 0) {
paths.Remove(paths[i]);
DumpNavigationPaths(paths.ToArray());
return true;
}
}
}
return false;
}
/// <summary>
/// Adds a new Navigation Path.
/// </summary>
/// <param name="nspace">The target namespace (<c>null</c> for the root).</param>
/// <param name="name">The Name of the Path.</param>
/// <param name="pages">The Pages array.</param>
/// <returns>The correct <see cref="T:NavigationPath" /> object.</returns>
/// <exception cref="ArgumentNullException">If <paramref name="name"/> or <paramref name="pages"/> are <c>null</c>.</exception>
/// <exception cref="ArgumentException">If <paramref name="name"/> or <paramref name="pages"/> are empty.</exception>
public NavigationPath AddNavigationPath(string nspace, string name, PageInfo[] pages)
{
if(name == null) throw new ArgumentNullException("name");
if(name.Length == 0) throw new ArgumentException("Name cannot be empty", "name");
if(pages == null) throw new ArgumentNullException("pages");
if(pages.Length == 0) throw new ArgumentException("Pages cannot be empty");
lock(this) {
NavigationPathComparer comp = new NavigationPathComparer();
NavigationPath temp = new NavigationPath(NameTools.GetFullName(nspace, name), this);
if(Array.Find(GetAllNavigationPaths(), delegate(NavigationPath p) { return comp.Compare(p, temp) == 0; }) != null) return null;
temp = null;
foreach(PageInfo page in pages) {
if(page == null) throw new ArgumentNullException("pages", "A page element cannot be null");
if(LoadLocalPageInfo(page) == null) throw new ArgumentException("Page not found", "pages");
}
NavigationPath result = new NavigationPath(NameTools.GetFullName(nspace, name), this);
List<string> tempPages = new List<string>(pages.Length);
StringBuilder sb = new StringBuilder(500);
sb.Append("\r\n");
sb.Append(result.FullName);
for(int i = 0; i < pages.Length; i++) {
if(pages[i].Provider == this) {
sb.Append("|");
sb.Append(pages[i].FullName);
tempPages.Add(pages[i].FullName);
}
}
result.Pages = tempPages.ToArray();
File.AppendAllText(GetFullPath(NavigationPathsFile), sb.ToString());
return result;
}
}
/// <summary>
/// Modifies an existing Navigation Path.
/// </summary>
/// <param name="path">The Navigation Path to modify.</param>
/// <param name="pages">The new Pages array.</param>
/// <returns>The correct <see cref="T:NavigationPath" /> object.</returns>
/// <exception cref="ArgumentNullException">If <paramref name="path"/> or <paramref name="pages"/> are <c>null</c>.</exception>
/// <exception cref="ArgumentException">If <paramref name="pages"/> is empty.</exception>
public NavigationPath ModifyNavigationPath(NavigationPath path, PageInfo[] pages)
{
if(path == null) throw new ArgumentNullException("path");
if(pages == null) throw new ArgumentNullException("pages");
if(pages.Length == 0) throw new ArgumentException("Pages cannot be empty");
lock(this) {
foreach(PageInfo page in pages) {
if(page == null) throw new ArgumentNullException("pages", "A page element cannot be null");
if(LoadLocalPageInfo(page) == null) throw new ArgumentException("Page not found", "pages");
}
NavigationPath[] paths = GetAllNavigationPaths();
NavigationPathComparer comp = new NavigationPathComparer();
for(int i = 0; i < paths.Length; i++) {
if(comp.Compare(path, paths[i]) == 0) {
paths[i].Pages = new string[0];
NavigationPath np = new NavigationPath(path.FullName, this);
List<string> tempPages = new List<string>(pages.Length);
for(int k = 0; k < pages.Length; k++) {
if(pages[k].Provider == this) {
tempPages.Add(pages[k].FullName);
}
}
np.Pages = tempPages.ToArray();
paths[i] = np;
DumpNavigationPaths(paths);
return np;
}
}
}
return null;
}
