// UI thread
public void OnSlideshowUpdate(SlideshowState slideshowState)
{
if (slideshowState == null)
{
SignboardNullFailCount++;
if (SignboardNullFailCount >= FAIL_THRESHHOLD)
{
State = SignboardState.NoSlideshow;
}
return;
}
else
{
SignboardNullFailCount = 0;
if (slideshowState.IsShowScreensaver)
{
State = SignboardState.ShowingScreensaver;
return;
}
State = slideshowState.SignboardState;
FontFactor = slideshowState.FontFactor;
if (slideshowState.NewPollingInterval >= TimeSpan.FromSeconds(MinimumTimespan))
{
UpdateStructureDispatcherTimer.Interval = slideshowState.NewPollingInterval;
}
else
{
UpdateStructureDispatcherTimer.Interval = TimeSpan.FromSeconds(MinimumTimespan);
}
if (slideshowState.IsNewSlideshowToStart || slideshowState.HardReload || (CurrentSlideshow == null && slideshowState.Slideshow != null))
{
Logger.Instance.Write("OnSlideshowUpdate", LogLevel.Low, "Starting new or updated Slideshow.");
ClearSlideshowGrid();
IsNewSlideshow = true;
CurrentSlideshow = slideshowState.Slideshow.Copy();
CurrentSlideshow.Start();
return;
}
if (CurrentSlideshow != null && CurrentSlideshow.Slides != null)
{
foreach (Slide slide in CurrentSlideshow.Slides)
{
foreach (Widget widget in slide.Widgets)
{
widget.UpdateFontFactor(slideshowState.FontFactor);
}
}
}
if (State == SignboardState.NoSlideshow)
{
ClearSlideshowGrid();
ShowScreensaver();
CurrentSlideshow = null;
return;
}
if (CurrentSlideshow == null)
{
Logger.Instance.Write("OnSlideshowUpdate", LogLevel.Low, "There is no current slideshow.");
return;
}
// check if all the widgets in all the slides are loaded
if (CurrentSlideshow.HasOneOrMoreSlides())
{
WidgetLoadingFailCount = 0;
// Check if announcements have changed
if (slideshowState.Announcements != null && CurrentAnnouncements == null)
{
CurrentAnnouncements = slideshowState.Announcements;
RenderAnnouncements(slideshowState.FontFactor);
}
else if (CurrentAnnouncements != null && (slideshowState.Announcements == null || slideshowState.Announcements.Count == 0))
{
CurrentAnnouncements = slideshowState.Announcements;
RenderAnnouncements(slideshowState.FontFactor);
}
else if (slideshowState.Announcements != null && CurrentAnnouncements != null && !CurrentAnnouncements.SequenceEqual(slideshowState.Announcements))
{
CurrentAnnouncements = slideshowState.Announcements;
RenderAnnouncements(slideshowState.FontFactor);
}
State = SignboardState.ShowingSlideshow;
}
else
{
State = SignboardState.LoadingWidgets;
WidgetLoadingFailCount++;
if (WidgetLoadingFailCount >= FAIL_THRESHHOLD)
{
Logger.Instance.Write("OnSlideshowUpdate", LogLevel.Medium, "Failing to load all widgets.");
State = SignboardState.Error;
}
}
}
}
public SignboardCoordinator(string macAddress)
{
PollingIntervalInSeconds = 10;
diagnosticsComponent = new DiagnosticsComponent(10);
this.macAddress = macAddress;
SlideshowState = new SlideshowState();
}
