object UnpackMemberObject(InteractiveObject parent, int memberIndex,
out InteractiveObject interactiveObject,
out InteractiveObject.InteractMessage interactMessage)
{
interactMessage.MemberIndex = memberIndex;
interactMessage.RepresentationIndex = -1;
var value = parent.Values [memberIndex];
interactiveObject = value as InteractiveObject;
if (interactiveObject != null)
{
return(value);
}
// FIXME?: InteractiveObjectRenderer will only support drilling down into
// one InteractiveObject in a ResultCollection. In practive this should
// be acceptable. Multiple InteractiveObject instances in a ResultCollection
// is basically undefined behavior... we'll only support the first found.
var resultCollection = value as RepresentedObject;
for (var i = 0; resultCollection != null && i < resultCollection.Count; i++)
{
interactiveObject = resultCollection [i] as InteractiveObject;
if (interactiveObject != null)
{
interactMessage.RepresentationIndex = i;
return(value);
}
}
return(value);
}
async Task LoadValueAsync(HtmlElement parentRowElem, HtmlElement valueElem,
InteractiveObject obj, InteractiveObject.InteractMessage interactMessage)
{
var parent = parentRowElem.ParentElement;
var insertBefore = parentRowElem.NextSibling;
try {
var result = (InteractiveObject)await Context.InteractAsync(
this, obj, interactMessage);
// Returns null when disconnected from agent
if (result == null)
{
return;
}
parentRowElem.AddCssClass("expanded");
parentRowElem.RemoveCssClass("collapsed");
if (result.Members == null || result.Members.Length == 0)
{
parentRowElem.RemoveCssClass("expanded");
valueElem.RemoveChildren();
valueElem.AppendChild(Document.CreateElement("code",
innerHtml: result.ToStringRepresentation.HtmlEscape()));
return;
}
foreach (var row in RenderRows(result))
{
// FIXME: JSC XCB InsertBefore binding throws an
// NRE if insertBefore is null... it should instead
// propagate the null to JS
if (insertBefore != null)
{
parent.InsertBefore(row.Element, insertBefore);
}
else
{
parent.AppendChild(row.Element);
}
}
} catch (Exception e) {
valueElem.RemoveChildren();
Context.Render(RenderState.CreateChild(e), valueElem);
}
}
