protected override void HandleChooser()
{
// YAGNI: may eventually need to make configurable how it comes up with the list of candidates.
// Currently this is used only for properties of a ghost notebook record.
var candidateList = (ICmPossibilityList)ReferenceTargetServices.RnGenericRecReferenceTargetOwner(m_cache, m_flid);
var candidates = candidateList == null ? null : candidateList.PossibilitiesOS.Cast <ICmObject>();
// YAGNI: see ReferenceLauncher implementation of this method for a possible approach to
// making the choice of writing system configurable.
var labels = ObjectLabel.CreateObjectLabels(m_cache, candidates,
m_displayNameProperty, "analysis vernacular");
var chooser = new SimpleListChooser(m_persistProvider,
labels,
m_fieldName,
m_cache,
new ICmObject[0],
m_mediator.HelpTopicProvider);
chooser.SetHelpTopic(Slice.GetChooserHelpTopicID());
chooser.SetObjectAndFlid(0, m_flid);
if (Slice.ConfigurationNode != null)
{
// Review JohnT: can any of this be made relevant without an object?
// // Handle the default case ("owner") for text parameters.
// // This (old approach) works only if
// // all of the list items are owned by the same object as the first one in the
// // list. (Later elements can be owned by elements owned by that first owner,
// // if you know what I mean.)
// //if (candidates.Count != 0)
// // chooser.TextParamHvo = m_cache.GetOwnerOfObject((int)candidates[0]);
// // JohnT: this approach depends on a new FDO method.
// ICmObject referenceTargetOwner = m_obj.ReferenceTargetOwner(m_flid);
// if (referenceTargetOwner != null)
// chooser.TextParamHvo = referenceTargetOwner.Hvo;
// chooser.SetHelpTopic(Slice.GetChooserHelpTopicID());
chooser.InitializeExtras(Slice.ConfigurationNode, Mediator);
}
var res = chooser.ShowDialog(FindForm());
if (DialogResult.Cancel == res)
{
return;
}
if (chooser.HandleAnyJump())
{
return;
}
if (chooser.ChosenObjects != null && chooser.ChosenObjects.Count() > 0)
{
UndoableUnitOfWorkHelper.Do(string.Format(DetailControlsStrings.ksUndoSet, m_fieldName),
string.Format(DetailControlsStrings.ksRedoSet, m_fieldName), m_obj,
() =>
{
// YAGNI: creating the real object may eventually need to be configurable,
// perhaps by indicating in the configuration node what class of object to create
// and so forth, or perhaps by just putting a "doWhat" attribute on the configuration node
// and making a switch here to control what is done. For now this slice is only used
// in one situation, where we need to create a notebook record, associate the current object
// with it, and add the values to it.
((IText)m_obj).AssociateWithNotebook(false);
IRnGenericRec notebookRec;
DataTree.NotebookRecordRefersToThisText(m_obj as IText, out notebookRec);
var recHvo = notebookRec.Hvo;
var values = (from obj in chooser.ChosenObjects select obj.Hvo).ToArray();
var listFlid = m_flid;
if (m_flid == RnGenericRecTags.kflidParticipants)
{
var defaultRoledParticipant = notebookRec.MakeDefaultRoledParticipant();
recHvo = defaultRoledParticipant.Hvo;
listFlid = RnRoledParticTags.kflidParticipants;
}
m_cache.DomainDataByFlid.Replace(recHvo, listFlid, 0, 0, values, values.Length);
// We don't do anything about updating the display because creating the real object
// will typically destroy this slice altogether and replace it with a real one.
});
// Structure has changed drastically, start over.
var index = Slice.IndexInContainer;
var dataTree = Slice.ContainingDataTree;
dataTree.RefreshList(false); // Slice will be destroyed!!
if (index <= dataTree.Slices.Count - 1)
{
dataTree.CurrentSlice = dataTree.FieldAt(index);
}
}
}
/// <summary>
/// Gets the object which, for the indicated property of the recipient, the user is
/// most likely to want to edit if the ReferenceTargetCandidates do not include the
/// target he wants.
/// The canonical example, supported by the default implementation of
/// ReferenceTargetCandidates, is a possibility list, where the targets are the items.
/// Subclasses which have reference properties edited by the simple list chooser
/// should generally override either this or ReferenceTargetCandidates or both.
/// The implementations of the two should naturally be consistent.
/// </summary>
public override ICmObject ReferenceTargetOwner(int flid)
{
return(ReferenceTargetServices.RnGenericRecReferenceTargetOwner(m_cache, flid));
}