public string RenderJSONMenu()
{
JSONSerializer jSSerializer = new JSONSerializer();
jSSerializer.RegisterConverters(new List<JavaScriptConverter>()
{
new JTreeContextMenuItem()
});
List<IAction> allActions = new List<IAction>();
foreach (IAction a in global::umbraco.BusinessLogic.Actions.Action.GetAll())
{
// NH: Added a try/catch block to this as an error in a 3rd party action can crash the whole menu initialization
try
{
if (!string.IsNullOrEmpty(a.Alias) && (!string.IsNullOrEmpty(a.JsFunctionName) || !string.IsNullOrEmpty(a.JsSource)))
{
// if the action is using invalid javascript we need to do something about this
if (!umbraco.BusinessLogic.Actions.Action.ValidateActionJs(a))
{
// Make new Iaction
PlaceboAction pa = new PlaceboAction(a);
pa.JsFunctionName = "IActionProxy_" + umbraco.cms.helpers.Casing.SafeAlias(pa.Alias) + "()";
allActions.Add(pa);
}
else
{
allActions.Add(a);
}
}
}
catch (Exception ee)
{
LogHelper.Error<JTreeContextMenu>("Error initializing tree action", ee);
}
}
return jSSerializer.Serialize(allActions);
}
/// <summary>
/// Serializes an XmlTreeNode object with the relevant values.
/// </summary>
/// <param name="obj"></param>
/// <param name="serializer"></param>
/// <returns></returns>
public override IDictionary<string, object> Serialize(object obj, JavaScriptSerializer serializer)
{
XmlTreeNode node = obj as XmlTreeNode;
Dictionary<string, object> result = new Dictionary<string, object>();
if (node != null)
{
//the data object to build the node
Dictionary<string, object> data = new Dictionary<string, object>();
data.Add("title", node.Text);
//the attributes object fot the tree node link (a) object created
Dictionary<string, object> dataAttributes = new Dictionary<string, object>();
string cssClass = "";
if (node.Icon.StartsWith(".spr"))
cssClass = "sprTree " + node.Icon.TrimStart('.');
else
{
//there is no sprite so add the noSpr class
cssClass = "sprTree noSpr";
data.Add("icon", IconPath + node.Icon);
}
dataAttributes.Add("class", cssClass + (string.IsNullOrEmpty(node.IconClass) ? "" : " " + node.IconClass));
dataAttributes.Add("href", node.Action);
//add a metadata dictionary object, we can store whatever we want in this!
//in this case we're going to store permissions & the tree type & the child node source url
//For whatever reason jsTree requires this JSON output to be quoted!?!
//This also needs to be stored in the attributes object with the class above.
Dictionary<string, object> metadata = new Dictionary<string, object>();
//the menu:
metadata.Add("menu", node.Menu == null ? "" : umbraco.BusinessLogic.Actions.Action.ToString(node.Menu));
//the tree type:
metadata.Add("nodeType", node.NodeType);
//the data url for child nodes:
metadata.Add("source", node.Source);
//the metadata/jsTree requires this property to be in a quoted JSON syntax
JSONSerializer jsSerializer = new JSONSerializer();
string strMetaData = jsSerializer.Serialize(metadata).Replace("\"", "'");
dataAttributes.Add("umb:nodedata", strMetaData);
data.Add("attributes", dataAttributes);
//add the data structure
result.Add("data", data);
//state is nothing if no children
if ((node.HasChildren || node.IsRoot) && !string.IsNullOrEmpty(node.Source))
result.Add("state", "closed");
//the attributes object for the tree node (li) object created
Dictionary<string, object> attributes = new Dictionary<string, object>();
attributes.Add("id", node.NodeID);
attributes.Add("class", string.Join(" ", node.Style.AppliedClasses.ToArray()));
if (node.IsRoot)
attributes.Add("rel", "rootNode");
else
attributes.Add("rel", "dataNode");
//the tree type should always be set, however if some developers have serialized their tree into an XmlTree
//then there is no gaurantees that this will be set if they didn't use the create methods of XmlTreeNode.
//So, we'll set the treetype to the nodetype if it is null, this means that the tree on the front end may
//not function as expected when reloding a node.
attributes.Add("umb:type", string.IsNullOrEmpty(node.TreeType) ? node.NodeType : node.TreeType);
result.Add("attributes", attributes);
return result;
}
return null;
}