/// <summary>
/// Fired when the user presses the back button.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void PanelManager_BackRequested(object sender, Windows.UI.Core.BackRequestedEventArgs e)
{
// If if anyone else wants to handle this
OnGoBackArgs args = new OnGoBackArgs();
m_onGoBack.Raise(this, args);
// If someone else already reacted don't do anything.
if (args.IsHandled)
{
return;
}
// If we can go back mark it handled
e.Handled = CanGoBack();
if (e.Handled)
{
// Call go back but this might not work, we can't go back while something else is navigating.
// If we can't go back right now just silently ignore the request.
GoBack();
}
else
{
// If we can't go back anymore for the last back show the menu.
// After that let the user leave.
if (!m_finalNavigateHasShownMenu)
{
m_finalNavigateHasShownMenu = true;
e.Handled = true;
ToggleMenu(true);
}
}
}
/// <summary>
/// Fired when the user tapped go back.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void PanelManager_OnGoBack(object sender, OnGoBackArgs e)
{
// If the presenter is open close it and mark the back handled.
if (ui_globalContentPresenter.State != GlobalContentStates.Idle)
{
ui_globalContentPresenter.Close();
e.IsHandled = true;
}
}