/// <summary>
/// Navigation may also take place through the journal when the application is hosted in a NavigationWindow, as is normal.
/// On navigation through journal, the ViewContentState object gives the path of the navigation target.
/// </summary>
/// <remarks>
/// When navigation takes place through the journal, the navigation mode reported by the navigaiton service is the platform's
/// NavigationMode. It must be converted into ScePhoto's custom navigation mode type here.
/// </remarks>
/// <param name="path">The journal path to use.</param>
/// <param name="mode">The journal navigation mode (NavigationMode.Back or .Forward).</param>
private void _NavigateByJournal(string path, NavigationMode mode)
{
// Journal navigation must be back or forward
if (mode == NavigationMode.Back || mode == NavigationMode.Forward)
{
NavigationMode readerNavigationMode = (mode == NavigationMode.Back) ? NavigationMode.Back : NavigationMode.Forward;
if (!string.IsNullOrEmpty(path))
{
Navigator currentNavigator = MasterNavigator.GetNavigatorFromPath(path);
if (currentNavigator != null)
{
// Current navigator found, raise Navigating event
object content = this._GetNavigatorContent(currentNavigator);
CustomContentState customContent = null;
if (currentNavigator.IncludeInJournal)
{
customContent = new _ViewContentState(currentNavigator);
}
var args = new ViewManagerNavigatedEventArgs(content, readerNavigationMode, customContent, this.CurrentNavigator, currentNavigator);
CurrentNavigator = currentNavigator;
_OnNavigated(args);
}
else
{
// Object is gone. Return error
var error = new MissingItemError(path);
var args = new ViewManagerNavigatedEventArgs(error, readerNavigationMode, null, this.CurrentNavigator, null);
_OnNavigated(args);
}
}
}
}
public ViewManager(FacebookService facebookService, string[] parameters)
{
Verify.IsNotNull(facebookService, "facebookService");
ProcessCommandLineArgs(parameters);
NavigationCommands = new NavigationCommands(this);
ActionCommands = new ActionCommands(this);
// _startPage may get set by processCommandLineArgs
MasterNavigator = new MasterNavigator(this, facebookService, _startPage);
FacebookAppId = facebookService.ApplicationId;
facebookService.PropertyChanged += facebookService_PropertyChanged;
Assert.IsNotNull(facebookService.MeContact);
facebookService.MeContact.PropertyChanged += _OnMeContactPropertyChanged;
}
/// <summary>
/// Populates items for the NavPanel, excluding ReadingList which is included by default
/// </summary>
/// <returns></returns>
protected override NavigationItemCollection GetValidNavigationItems()
{
List <NavigationItem> navigationItems = new List <NavigationItem>();
// Get Navigators from MasterNavigator and create navigation item list
ReadOnlyCollection <Navigator> navigators = MasterNavigator.GetTopLevelNavigators();
foreach (Navigator navigator in navigators)
{
string name = String.Empty;
if (navigator is ItemNavigator && !(navigator is ReadingListNavigator))
{
Item item = (navigator as ItemNavigator).Content as Item;
if (item != null)
{
name = item.Title;
NavigationItem navigationItem = new NavigationItem(name, navigator);
navigationItems.Add(navigationItem);
}
}
}
return(new NavigationItemCollection(navigationItems));
}
