/// <summary>
/// FireTabChangedEvent publishes a TabChangedEvent
/// based on the current state of the TabHost.
/// </summary>
/// <param name="sendBlank">Determines if the Active Window should be checked for validity prior to sending the Message</param>
private void FireTabChangedEvent(Boolean sendBlank)
{
//Get a reference to the TabHostView
TabHostView thv = this._unity.Resolve <TabHostView>(Strings.TabHostViewName);
//Create an ActiveTabInfo and fill it
ActiveTabInfo info = new ActiveTabInfo();
//If the flag says to check the active window, do it
if (sendBlank == false)
{
//If there is a current Tab available, fill the
//ActiveDocumentInfo object.
TabView dw = thv._tabContainer.ActiveWindow as TabView;
if (dw != null)
{
//Cast the DataContext to the TabViewModel
TabViewModel tvm = dw.DataContext as TabViewModel;
//Fill the info
info.DocumentName = tvm.DocumentName;
info.TabsOpen = thv._tabContainer.Children.Count;
}
}
//Finally, fire the TabChangedEvent
this._eventAggregator.GetEvent <TabChangedEvent>().Publish(info);
}
/// <summary>
/// OnDocumentNameChangedEvent sets the value of the
/// DocumentName and fires an event to subscribers.
/// </summary>
/// <param name="tabName">The Name of the Tab</param>
private void OnTabChanged(ActiveTabInfo info)
{
//Generate the String for the Title
StringBuilder title = new StringBuilder(info.DocumentName);
//Add a separator if necessary
if (title.Length > 0)
{
title.Append(Strings.TitleSeparator);
}
//Now add the Application name
title.Append(Strings.ApplicationName);
//Set the Document Name Property
this.Title = title.ToString();
}
/// <summary>
/// OnTabChange is called when a Tab in the MDI region
/// is changed in some way. The SpectrumInfo is exposed
/// directly to the View for DataBinding.
/// </summary>
/// <param name="info">The SpectrumInfo </param>
private void OnTabChanged(ActiveTabInfo info)
{
//Set the TabsAvailable Property
this.TabsAvailable = (info.TabsOpen > 0);
}
