/// <summary>
/// Goes back to a specified page if possible
/// </summary>
/// <param name="backPage">Page to go back to</param>
public virtual void Back(IMainMenuPage backPage)
{
int count = mPageStack.Count;
if (count == 0)
{
SafeBack(backPage);
return;
}
for (int i = count - 1; i >= 0; i--)
{
IMainMenuPage currentPage = mPageStack.Pop();
if (currentPage == backPage)
{
SafeBack(backPage);
return;
}
}
SafeBack(backPage);
}
/// <summary>
/// Goes back to a certain page
/// </summary>
/// <param name="backPage"></param>
protected void SafeBack(IMainMenuPage backPage)
{
DeactivateCurrentPage();
ActivateCurrentPage(backPage);
}
protected virtual void ChangePage(IMainMenuPage newPage)
{
DeactivateCurrentPage();
ActivateCurrentPage(newPage);
}
/// <summary>
/// Activate a new page and place it on the navigation stack
/// </summary>
/// <param name="newPage">The page to be activated</param>
protected void ActivateCurrentPage(IMainMenuPage newPage)
{
mCurrentPage = newPage;
mCurrentPage.Show();
mPageStack.Push(mCurrentPage);
}
/// <summary>
/// Activate specified page
/// </summary>
/// <param name="page">page to activate</param>
protected void ActivatePage(IMainMenuPage page)
{
m_CurrentPage = page;
m_CurrentPage.Show();
m_PageStack.Push(m_CurrentPage);
}
