/// <summary>
/// Render an items tree for specified list
/// </summary>
/// <param name="list">The content list object</param>
/// <param name="current">The content data item object.</param>
/// <param name="htmlAttributes">The html attributes object.</param>
/// <returns></returns>
public static HelperResult Tree(ContentListDecorator list, ContentDataItemDecorator current = null, object htmlAttributes = null)
{
return(new HelperResult((w) =>
{
using (var writer = new Html32TextWriter(w))
{
writer.WriteBeginTag("ul");
writer.WriteAttribute("data-role", "tree");
if (htmlAttributes != null)
{
var dict = htmlAttributes.ToDictionary();
foreach (var key in dict.Keys)
{
if (key.StartsWith("data_"))
{
writer.WriteAttribute(key.Replace("_", "-"), (string)dict[key]);
}
else
{
writer.WriteAttribute(key, (string)dict[key]);
}
}
}
writer.Write(Html32TextWriter.TagRightChar);
var items = list.GetItems(i => i.ParentItemID == Guid.Empty && i.IsPublished && i.IsCurrentVersion).OrderBy(i => i.Pos);
RenderChildren(writer, list, items, current);
writer.WriteEndTag("ul");
}
}));
}
public static void WriteValue(this Html32TextWriter w, string value, string classname)
{
w.WriteBeginTag("td");
w.WriteAttribute("class", classname);
w.Write(">");
if (!string.IsNullOrEmpty(value))
{
w.WriteEncodedText(value);
}
w.WriteEndTag("td");
}
private static void RenderChildren(Html32TextWriter writer, ContentListDecorator list, IEnumerable <ContentDataItem> items, ContentDataItem current)
{
var app = App.Get();
var fieldName = list.GetDefaultTitleField().Name;
var Url = DNA.Utility.UrlUtility.CreateUrlHelper();
foreach (var item in items)
{
var itemWrapper = app.Wrap(item);
writer.WriteBeginTag("li");
var _class = "d-node";
var children = itemWrapper.Children();
var childrenCount = children.Count();
if (childrenCount > 0)
{
_class += " d-node-hasChildren";
}
//writer.WriteAttribute("class", "d-node d-node-hasChildren");
var isInPath = false;
if (current != null && !string.IsNullOrEmpty(current.Path) && !string.IsNullOrEmpty(item.Path) && current.Path.StartsWith(item.Path))
{
isInPath = true;
if (childrenCount > 0)
{
writer.WriteAttribute("data-expanded", "true");
}
}
writer.WriteAttribute("data-id", itemWrapper.ID.ToString());
if (current != null && itemWrapper.ID.Equals(current.ID))
{
writer.WriteAttribute("data-selected", "true");
}
if (itemWrapper.ParentItemID != Guid.Empty)
{
writer.WriteAttribute("data-parentid", itemWrapper.ParentItemID.ToString());
}
if (childrenCount > 0)
{
if (!isInPath)
{
var urlformat = "~/api/contents/items?name={0}&slug={1}&parentId={2}";
var popupUrl = Url.Content(string.Format(urlformat, list.Name, list.Views.Default.Name, itemWrapper.ID.ToString()));
writer.WriteAttribute("data-popupurl", popupUrl);
}
}
writer.WriteAttribute("class", _class);
writer.Write(Html32TextWriter.TagRightChar);
writer.WriteBeginTag("a");
writer.WriteAttribute("href", itemWrapper.UrlComponent);
writer.Write(Html32TextWriter.TagRightChar);
writer.Write(itemWrapper.Value(fieldName).Raw);
writer.WriteEndTag("a");
if (childrenCount > 0)
{
if (isInPath)
{
writer.WriteFullBeginTag("ul");
RenderChildren(writer, list, children, current);
writer.WriteEndTag("ul");
}
}
writer.WriteEndTag("li");
}
}