public static N2.Web.Tree LITagModifier(this N2.Web.Tree tree, Action <HierarchyNode <ContentItem>, TagBuilder> tagModifier)
{
return(tree.Tag((n, t) =>
{
if (t.TagName.Equals("li", StringComparison.InvariantCultureIgnoreCase))
{
tagModifier(n, t);
}
}));
}
/// <summary>
/// Add attibtues the root of a treeview
/// </summary>
/// <param name="tree"></param>
/// <param name="htmlAttributes"></param>
/// <returns></returns>
public static N2.Web.Tree HtmlAttibutes(this N2.Web.Tree tree, object htmlAttributes)
{
tree.Tag((node, builder) =>
{
if (builder.TagName.Equals("ul", StringComparison.InvariantCultureIgnoreCase) &&
(node.Parent == null || node.Parent.Current == null))
{
builder.MergeAttributes(new RouteValueDictionary(htmlAttributes), true);
}
});
return(tree);
}
protected override void CreateChildControls()
{
IContentAdapterProvider adapters = Engine.Resolve <IContentAdapterProvider>();
if (Nodes == null)
{
Nodes = new BranchHierarchyBuilder(SelectedItem, RootNode, true)
.Children((item) => adapters.ResolveAdapter <NodeAdapter>(item).GetChildren(item, Interfaces.Managing))
.Build();
}
var tree = new N2.Web.Tree(Nodes)
.OpenTo(SelectedItem)
.Filters(Filter)
.LinkProvider(item => BuildLink(adapters.ResolveAdapter <NodeAdapter>(item), item, item.Path == SelectedItem.Path, Target))
.ToControl();
AppendExpanderNodeRecursive(tree, Filter, Target, adapters);
Controls.Add(tree);
base.CreateChildControls();
}
protected override void CreateChildControls()
{
IContentAdapterProvider adapters = Engine.Resolve<IContentAdapterProvider>();
if (Nodes == null)
Nodes = new BranchHierarchyBuilder(SelectedItem, RootNode, true)
.Children((item) => adapters.ResolveAdapter<NodeAdapter>(item).GetChildren(item, Interfaces.Managing))
.Build();
var tree = new N2.Web.Tree(Nodes)
.OpenTo(SelectedItem)
.Filters(Filter)
.LinkProvider(item => BuildLink(adapters.ResolveAdapter<NodeAdapter>(item), item, item.Path == SelectedItem.Path, Target))
.ToControl();
AppendExpanderNodeRecursive(tree, Filter, Target, adapters);
Controls.Add(tree);
base.CreateChildControls();
}
private static void ClassifyAnchors(ContentItem startsFrom, ContentItem current, N2.Web.Tree tree)
{
IList <ContentItem> ancestors = GenericFind <ContentItem, ContentItem> .ListParents(current, startsFrom, true);
if (ancestors.Contains(startsFrom))
{
ancestors.Remove(startsFrom);
}
tree.LinkWriter((n, w) =>
{
var link = n.Current.Link();
var @class = n.Current == current ? "current" : ancestors.Contains(n.Current) ? "trail" : "";
if (n.Children.Count > 0)
{
@class += " dropdown-toggle";
link.Attribute("data-toggle", "dropdown");
}
link.Class(@class).WriteTo(w);
});
tree.ULTagModifier((n, t) =>
{
if (n.Parent != null && n.Parent.Current != null)
{
t.MergeAttribute("class", "dropdown-menu");
}
});
tree.LITagModifier((n, t) =>
{
//if children, indicate with a dropdown class
var @class = n.Children.Count > 0 ? "dropdown" : string.Empty;
@class += " " + (n.Current == current
? "active"
: ancestors.Contains(n.Current) ? "active trail" : "");
t.MergeAttribute("class", @class.Trim());
});
}
public static Tree OpenTo(this Tree treeBuilder, ContentItem item)
{
var items = new HashSet <ContentItem>(Find.EnumerateParents(item));
return(treeBuilder.ClassProvider(null, n => items.Contains(n.Current) || n.Current == item ? "open" : string.Empty));
}
