protected void LoadStreamThing(ContentStreamViewer viewer, IThingGraph graph, IStreamThing thing)
{
try {
viewer.IsStreamOwner = IsStreamOwner;
if (viewer.ContentId != thing.Id)
{
SaveStream(graph, viewer);
var content = graph.ContentOf(thing);
if (viewer is SheetViewer)
{
content.Source = thing.Id;
}
if (viewer is HtmlContentViewer)
{
var htmlViewr = (HtmlContentViewer)viewer;
htmlViewr.ContentThing = thing;
htmlViewr.ThingGraph = graph;
}
viewer.SetContent(content);
viewer.ContentId = thing.Id;
}
} catch (Exception ex) {
ExceptionHandler.Catch(ex, MessageType.OK);
} finally {
thing.ClearRealSubject(!IsStreamOwner);
}
}
public void SaveStream(IGraph <IVisual, IVisualEdge> graph, ContentStreamViewer viewer)
{
if (viewer == null || graph == null || viewer.ContentId == 0 || !viewer.CanSave())
{
return;
}
SaveStream(graph.ThingGraph(), viewer);
}
protected void SaveStream(IThingGraph thingGraph, ContentStreamViewer viewer)
{
if (thingGraph == null || !viewer.CanSave())
{
return;
}
var thing = thingGraph.GetById(viewer.ContentId) as IStreamThing;
if (thing != null)
{
var content = new Content <Stream> ();
viewer.Save(content);
new ThingContentFacade().AssignContent(thingGraph, thing, content);
if (content.Data != null)
{
content.Data.Dispose();
}
content.Data = null;
content = null;
thing.State.Clean = true;
}
}
