public void GoBack()
{
ViewBack = false;
state = State.AlgorithmSelecting;
CurrentPage = algorithmPage;
((ISupportParameter)CurrentPage.DataContext).Parameter = (Action <InterViewModelPackage>)Navigate;
hidingMethod = null;
}
public void GoHome()
{
ViewBack = false;
state = State.AudioSelecting;
CurrentPage = startPage;
((ISupportParameter)CurrentPage.DataContext).Parameter = (Action <InterViewModelPackage>)Navigate;
Audio = null;
hidingMethod = null;
ViewHome = false;
}
public CodingViewModel(NavigationCodes code, IHidingMethod hidingMethod, DigitalAudio audio)
{
Message = "";
cover = audio;
method = hidingMethod;
conteinerCapacity = hidingMethod.GetAvailableSpace(audio);
action = code;
switch (code)
{
case NavigationCodes.Extract:
CodingAction = "Extract";
break;
case NavigationCodes.Embed:
CodingAction = "Embed";
break;
default:
CodingAction = "Undefined";
break;
}
}
public void Navigate(InterViewModelPackage package)
{
if (package.Code == NavigationCodes.Start)
{
GoHome();
}
else
{
ViewHome = true;
switch (state)
{
case State.AudioSelecting:
state = State.AlgorithmSelecting;
Audio = package.Data as DigitalAudio;
navigationLine = package.Code;
CurrentPage = GetAlgorithmPage();
break;
case State.AlgorithmSelecting:
state = State.MessageCoding;
ViewBack = true;
hidingMethod = package.Data as IHidingMethod;
CurrentPage = new Pages.CodingPage
{
DataContext = new CodingViewModel(navigationLine, hidingMethod, Audio)
};
((ISupportParameter)CurrentPage.DataContext).Parameter = (Action <InterViewModelPackage>)Navigate;
break;
case State.MessageCoding:
break;
default:
break;
}
}
}
