void ShowLoadingProgress(DeviceChannelControl channControl, string title)
{
ProgressView progress = new ProgressView("Loading ..");
channControl.Content = progress;
channControl.Title = title;
}
void LoadChannel(ChannelDescription chan, SourcesArgs args, string proftoken = null)
{
//Create channel control
DeviceChannelControl channControl = new DeviceChannelControl();
//add control to controls dictionary
channelControls.Add(chan.videoSource.token, channControl);
//Display progress bar
ShowLoadingProgress(channControl, chan.videoSource.token);
//add control to parent UI panel
parent.Children.Add(channControl);
InitChannelControl(channControl, chan, args);
//subscribe to profile changed event
var subsToken = eventAggregator.GetEvent <ProfileChangedEvent>().Subscribe(evargs => {
if (evargs.vsToken == chan.videoSource.token)
{
//reload channel with new profile
InitChannelControl(channControl, chan, args, evargs.profToken);
}
}, false);
disposables.Add(Disposable.Create(() => {
eventAggregator.GetEvent <ProfileChangedEvent>().Unsubscribe(subsToken);
}));
}
void InitChannelControl(DeviceChannelControl channControl, ChannelDescription chan, SourcesArgs args, string proftoken = null)
{
//try to remove and clear all needed data
if (channControl.Content is IDisposable)
{
var disp = channControl.Content as IDisposable;
//try to remove content from disposables collection
if (disposables.Contains(disp))
{
disposables.Remove(disp);
}
//dispose existing control
disp.Dispose();
}
//Begin load channels section
disposables.Add(SourceView.Load(chan, args.capabilities, args.nvtSession, args.odmSession, proftoken)
.ObserveOnCurrentDispatcher()
.Subscribe(sourceArgs => {
if (sourceArgs.selectedProfile != null)
{
channControl.Title = sourceArgs.channelDescr.videoSource.token + ": " + sourceArgs.selectedProfile.name;
}
else
{
channControl.Title = sourceArgs.channelDescr.videoSource.token;
}
SourceView sourceView = new SourceView(container);
disposables.Add(sourceView);
sourceView.Init(sourceArgs);
channControl.Content = sourceView;
}, err => {
ErrorView errorView = new ErrorView(err);
disposables.Add(errorView);
channControl.Content = errorView;
}
));
}