internal override void ProcessReply(CallbackMessage message, bool moreComing)
{
if (message is BrowseCallbackMessage brm)
{
BrowseEvent?.Invoke(Token, new BrowseEventArgs(brm.Payload.Flags.HasFlag(ServiceFlags.Add) ? BrowseEventType.Added : BrowseEventType.Removed,
new ServiceDescriptor(brm.Payload.InstanceName, brm.Payload.ServiceType, brm.Payload.Domain, brm.Payload.InterfaceIndex), moreComing));
}
}
public async Task <IOperationToken> BrowseAsync(string serviceType, string domain = "", uint interfaceIndex = 0, object context = null)
{
await CheckConnectionAsync();
var op = new BrowseOperation(serviceType, domain, interfaceIndex, context);
op.BrowseEvent += (s, e) => BrowseEvent?.Invoke(s, e);
await _connection.AddAndExecuteSubordinate(op);
return(op.Token);
}
/// <summary>
/// Fills the CurrentItems property for display in ItemsControl
/// based view (ListBox, ListView etc.).
///
/// This method wraps a parameterized version of the same method
/// with a call that contains the standard data field.
/// </summary>
/// <param name="request"></param>
/// <param name="browseEvent">Defines whether a request should result
/// in an explicit event relayed to a controller or not.</param>
protected FinalBrowseResult PopulateView(BrowseRequest request,
bool browseEvent)
{
//Logger.DebugFormat("PopulateView method");
//Logger.DebugFormat("Populating view for request id: {0} - '{1}'", request.RequestId, request.NewLocation.Path);
// This can happen when the viewmodel is configured at start-up
// but the current folder is not configured, yet
if (request == null)
{
return(FinalBrowseResult.FromRequest(request, BrowseResult.InComplete));
}
IPathModel newPathToNavigateTo = request.NewLocation;
bool result = false;
IsBrowsing = true;
try
{
if (newPathToNavigateTo != null && browseEvent == true)
{
BrowseEvent?.Invoke(this,
new BrowsingEventArgs(newPathToNavigateTo, true));
}
DirectoryInfo cur = new DirectoryInfo(newPathToNavigateTo.Path);
if (cur.Exists == false)
{
return(FinalBrowseResult.FromRequest(request, BrowseResult.InComplete));
}
CurrentItemClear();
result = InternalPopulateView(_ParsedFilter, cur, ShowIcons);
if (result == true)
{
SetCurrentLocation(newPathToNavigateTo);
return(FinalBrowseResult.FromRequest(request, BrowseResult.Complete));
}
return(FinalBrowseResult.FromRequest(request, BrowseResult.InComplete));
}
catch (Exception exp)
{
var bresult = FinalBrowseResult.FromRequest(request, BrowseResult.InComplete);
bresult.UnexpectedError = exp;
return(bresult);
}
finally
{
if (newPathToNavigateTo != null && browseEvent == true)
{
BrowseEvent?.Invoke(this, new BrowsingEventArgs(
newPathToNavigateTo, false,
result == true ? BrowseResult.Complete : BrowseResult.InComplete));
}
IsBrowsing = false;
}
}
