/// <summary>
/// Sets the object display control.
/// </summary>
/// <param name="objectDisplayType">Display type of the object.</param>
/// <param name="removeUntilAfterContext">The context to remove until.</param>
private void SetObjectDisplayControl(string objectDisplayType, object removeUntilAfterContext = null)
{
//Reverse order of the currentContextItems in case removeUntilAfterContext !=null
//Also copies it to an IEnumerable to prevent collection changed error in the following foreach loop
var currentContextItemsInReverse = this.CurrentContext.Reverse<object>();
bool breakAfter = false;
foreach (var context in currentContextItemsInReverse)
{
if (removeUntilAfterContext != null && context == removeUntilAfterContext)
breakAfter = true;
MessageBus.Current.SendMessage(new RemoveContextMessage(context));
if (breakAfter)
break;
}
if (objectDisplayType == null) return;
var objectDisplay =
ObjectTypeDisplayControls.FirstOrDefault(
objectDisplayControl =>
objectDisplayControl.ObjectTypeToDisplay == objectDisplayType);
CurrentlySelectedContextProvider = objectDisplay.ContextProvider;
MessageBus.Current.SendMessage(new MoveToDetailsViewMessage(CurrentlySelectedContextProvider.ObjectTypeProvided, MoveStrategy.MoveBackwards));
}
public InfiniteAccordionView()
{
InitializeComponent();
ObjectTypeDisplayControls = new ObservableCollection<IObjectTypeDisplay>();
ContextBorderControls = new ObservableCollection<ContextBorder>();
CurrentContext = new List<object>();
MessageBus.Current.Listen<RemoveContextMessage>().SubscribeOnDispatcher().Subscribe(message =>
{
this.CurrentContext.Remove(message.Context);
SetupUI();
});
MessageBus.Current.Listen<MoveToDetailsViewMessage>().SubscribeOnDispatcher().Subscribe(OnMoveToDetailsViewMessage);
CurrentlySelectedContextProvider = null;
this.Loaded += InfiniteAccordionViewLoaded;
}
/// <summary>
/// Moves to details view helper.
/// </summary>
/// <param name="message">The message.</param>
private void MoveToDetailsViewHelper(MoveToDetailsViewMessage message)
{
switch (message.Strategy)
{
case MoveStrategy.AddContextToExisting:
if (CurrentlySelectedContextProvider.SelectedContext != null)
{
this.CurrentContext.Add(CurrentlySelectedContextProvider.SelectedContext);
//Notify that the context was added
MessageBus.Current.SendMessage(new AddContextMessage(CurrentlySelectedContextProvider.SelectedContext));
}
break;
case MoveStrategy.StartFresh:
foreach (var context in CurrentContext.ToArray())
{
this.CurrentContext.Remove(context);
//Notify that the context was removed
MessageBus.Current.SendMessage(new RemoveContextMessage(context));
}
break;
case MoveStrategy.MoveBackwards:
var contextToMoveTo = this.CurrentContext.Where(o => o.GetType().ToString() == message.TypeOfDetailsView).LastOrDefault();
if (contextToMoveTo != null)
{
SetObjectDisplayControl(contextToMoveTo.GetType().ToString(), contextToMoveTo);
}
break;
}
var objectDisplay = ObjectTypeDisplay(message.TypeOfDetailsView);
if (objectDisplay != null && objectDisplay.ContextProvider != null)
CurrentlySelectedContextProvider = objectDisplay.ContextProvider;
//Setup the UI
SetupUI();
}
public ContextProviderChangedMessage(IProvideContext contextProvider)
{
CurrentContextProvider = contextProvider;
}
