/// <summary>
/// Render the treeview with the first two levels of albums that are viewable to the logged on user.
/// </summary>
private TreeView Generate()
{
_tv = new TreeView
{
EnableCheckBoxPlugin = _tvOptions.EnableCheckboxPlugin
};
foreach (IAlbum rootAlbum in GetRootAlbums())
{
// Add root node.
TreeNode rootNode = new TreeNode();
string albumTitle = GetRootAlbumTitle(rootAlbum);
rootNode.Text = albumTitle;
rootNode.ToolTip = albumTitle;
rootNode.Id = String.Concat("tv_", rootAlbum.Id.ToString(CultureInfo.InvariantCulture));
rootNode.DataId = rootAlbum.Id.ToString(CultureInfo.InvariantCulture);
rootNode.Expanded = true;
rootNode.AddCssClass("jstree-root-node");
if (!String.IsNullOrEmpty(_tvOptions.NavigateUrl))
{
var url = rootAlbum.IsVirtualAlbum ? _tvOptions.NavigateUrl : Utils.AddQueryStringParameter(_tvOptions.NavigateUrl, String.Concat("aid=", rootAlbum.Id.ToString(CultureInfo.InvariantCulture)));
rootNode.NavigateUrl = url;
}
if (_tvOptions.EnableCheckboxPlugin)
{
rootNode.ShowCheckBox = !rootAlbum.IsVirtualAlbum && Utils.IsUserAuthorized(_tvOptions.RequiredSecurityPermissions, RoleController.GetGalleryServerRolesForUser(), rootAlbum.Id, rootAlbum.GalleryId, rootAlbum.IsPrivate, SecurityActionsOption.RequireOne, rootAlbum.IsVirtualAlbum);
rootNode.Selectable = rootNode.ShowCheckBox;
}
else
{
rootNode.Selectable = true;
}
//if (!rootNode.Selectable) rootNode.HoverCssClass = String.Empty;
// Select and check this node if needed.
if (_tvOptions.SelectedAlbumIds.Contains(rootAlbum.Id))
{
rootNode.Selected = true;
}
_tv.Nodes.Add(rootNode);
// Add the first level of albums below the root album.
BindAlbumToTreeview(rootAlbum.GetChildGalleryObjects(GalleryObjectType.Album, !Utils.IsAuthenticated).ToSortedList(), rootNode, false);
// Only display the root node if it is selectable or we added any children to it; otherwise, remove it.
if (!rootNode.Selectable && rootNode.Nodes.Count == 0)
{
_tv.Nodes.Remove(rootNode);
}
}
// Make sure all specified albums are visible and checked.
foreach (int albumId in _tvOptions.SelectedAlbumIds)
{
IAlbum album = AlbumController.LoadAlbumInstance(albumId, false);
if (Utils.IsUserAuthorized(_tvOptions.RequiredSecurityPermissions, RoleController.GetGalleryServerRolesForUser(), album.Id, album.GalleryId, album.IsPrivate, SecurityActionsOption.RequireOne, album.IsVirtualAlbum))
{
BindSpecificAlbumToTreeview(album);
}
}
return(_tv);
}
/// <summary>
/// Add the collection of albums to the specified treeview node.
/// </summary>
/// <param name="albums">The collection of albums to add the the treeview node.</param>
/// <param name="parentNode">The treeview node that will receive child nodes representing the specified albums.</param>
/// <param name="expandNode">Specifies whether the nodes should be expanded.</param>
private void BindAlbumToTreeview(IEnumerable <IGalleryObject> albums, TreeNode parentNode, bool expandNode)
{
foreach (IAlbum album in albums)
{
TreeNode node = new TreeNode();
string albumTitle = Utils.RemoveHtmlTags(album.Title);
node.Text = albumTitle;
node.ToolTip = albumTitle;
node.Id = String.Concat("tv_", album.Id.ToString(CultureInfo.InvariantCulture));
node.DataId = album.Id.ToString(CultureInfo.InvariantCulture);
node.Expanded = expandNode;
if (!String.IsNullOrEmpty(_tvOptions.NavigateUrl))
{
node.NavigateUrl = Utils.AddQueryStringParameter(_tvOptions.NavigateUrl, String.Concat("aid=", album.Id.ToString(CultureInfo.InvariantCulture)));
}
if (_tvOptions.EnableCheckboxPlugin && !parentNode.ShowCheckBox)
{
node.ShowCheckBox = !album.IsVirtualAlbum && Utils.IsUserAuthorized(_tvOptions.RequiredSecurityPermissions, RoleController.GetGalleryServerRolesForUser(), album.Id, album.GalleryId, album.IsPrivate, SecurityActionsOption.RequireOne, album.IsVirtualAlbum);
node.Selectable = node.ShowCheckBox;
}
else
{
node.Selectable = true;
}
if (album.GetChildGalleryObjects(GalleryObjectType.Album, !Utils.IsAuthenticated).Any())
{
node.HasChildren = true;
}
// Select and check this node if needed.
if (_tvOptions.SelectedAlbumIds.Contains(album.Id))
{
node.Expanded = true;
node.Selected = true;
// Expand the child of the selected album.
BindAlbumToTreeview(album.GetChildGalleryObjects(GalleryObjectType.Album, !Utils.IsAuthenticated).ToSortedList(), node, false);
}
parentNode.Nodes.Add(node);
}
}
