/// <summary>
/// Property Changed Callback method of the IsSelected Dependency Property.
/// </summary>
/// <param name="sender">The instance of the class that had the IsSelected property changed.</param>
/// <param name="e">The <see cref="System.Windows.DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void OnIsSelectedChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
PageViewerItem subject = (PageViewerItem)sender;
bool newValue = (bool)e.NewValue;
bool oldValue = (bool)e.OldValue;
if (!(subject.Owner == null || subject.Owner.IsSettingSelection))
{
if (newValue)
{
subject.Owner.SelectedItem = subject;
}
else if (subject.Owner.SelectedItem == subject)
{
subject.Owner.SelectedItem = null;
}
}
}
/// <summary>
/// Property Changed Callback method of the SelectedItem Dependency Property.
/// </summary>
/// <param name="sender">The instance of the class that had the SelectedItem property changed.</param>
/// <param name="e">The <see cref="System.Windows.DependencyPropertyChangedEventArgs"/> instance containing the event data.</param>
private static void OnSelectedItemChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
PageViewer subject = (PageViewer)sender;
PageViewerItem newValue = (PageViewerItem)e.NewValue;
PageViewerItem oldValue = (PageViewerItem)e.OldValue;
subject.IsSettingSelection = true;
if (oldValue != null)
{
oldValue.FreeContent();
oldValue.IsSelected = false;
}
if (newValue != null)
{
newValue.InitializeContent();
newValue.IsSelected = true;
}
subject.IsSettingSelection = false;
}