/// <summary>
/// Called when Source property is changed
/// </summary>
/// <param name="depObj">The dependency property</param>
/// <param name="e">The event arguments</param>
private static void SourcePropertyChanged(DependencyObject depObj, DependencyPropertyChangedEventArgs e)
{
Frame frame = depObj as Frame;
// Verify frame reference is valid and we're not in design mode.
if (frame != null &&
!Frame.IsInDesignMode() &&
frame._loaded &&
frame._updatingSourceFromNavigationService == false)
{
frame.Navigate(e.NewValue as Uri);
}
if (Frame.IsInDesignMode())
{
if (e.NewValue != null)
{
frame.Content = String.Format(CultureInfo.InvariantCulture, Resource.Frame_DefaultContent, e.NewValue.ToString());
}
else
{
frame.Content = frame.GetType().Name;
}
}
}
/// <summary>
/// Called when the Frame.Loaded event fires.
/// </summary>
/// <param name="sender">The object raising the event</param>
/// <param name="e">The event arguments</param>
private void Frame_Loaded(object sender, RoutedEventArgs e)
{
this._navigationService.InitializeJournal();
if (this.ContentLoader == null)
{
this.ContentLoader = new PageResourceContentLoader();
}
this._navigationService.InitializeNavigationCache();
// Set loaded flag
this._loaded = true;
// Don't attempt to load anything at design-time
if (!Frame.IsInDesignMode())
{
UriMapperBase mapper = this.UriMapper;
// If there's a deeplink, don't check Source as the deeplink overrides it
if (this.ApplyDeepLinks() == false)
{
if (this._deferredNavigation != null)
{
this.Navigate(this._deferredNavigation);
this._deferredNavigation = null;
}
// Check if source property was set
else if (this.Source != null)
{
this.Navigate(this.Source);
}
// If no Source was set, we may still be able to use UriMapper to convert this to a navigable Uri
else if (mapper != null)
{
Uri emptyUri = new Uri(String.Empty, UriKind.Relative);
Uri mappedUri = mapper.MapUri(emptyUri);
if (mappedUri != null && !String.IsNullOrEmpty(mappedUri.OriginalString))
{
this.Navigate(emptyUri);
}
}
}
}
else
{
if (this.Source != null)
{
this.Content = String.Format(CultureInfo.InvariantCulture, Resource.Frame_DefaultContent, this.Source.ToString());
}
else
{
this.Content = typeof(Frame).Name;
}
}
}
