public ModulesVM(ConnectionVM connection, SettingsVM settings, ModuleVM menu, params ModuleVM[] modules)
{
//set fields
_connection = connection;
_settings = settings;
_menu = menu;
Modules = new ObservableCollection <ModuleVM>(modules);
ModuleColumns = new ObservableCollection <ObservableCollection <ModuleVM> >();
ModuleSizeChangedCommand = new RelayCommand <SizeChangedEventArgs>(ModuleSizeChanged);
//connect to events
_connectionEvents = new PropertyObserver <ConnectionVM>(_connection)
.RegisterHandler(i => i.CurrentArm, CurrentRobotChanged)
.RegisterHandler(i => i.Ports, PortsChanged)
.RegisterHandler(i => i.IsScanning, ScanningChanged);
_settingsEvents = new PropertyObserver <SettingsVM>(_settings)
.RegisterHandler(i => i.FirstTimeUse, FirstTimeUseChanged);
settings.HasReset += Settings_HasReset;
foreach (var module in modules)
{
module.Selected += Module_Selected;
}
App.Current.Exit += Current_Exit;
UpdateRobotChanged();
GotoMenu();
}
void LoadControl(ModuleVM module)
{
//construct control
if (module.Control == null)
{
module.Control = Activator.CreateInstance(module.ControlType) as UserControl;
//attach the view model
if (module.ViewModelType != null)
{
module.Control.DataContext = Activator.CreateInstance(module.ViewModelType);
}
}
//set transition
SelectedModuleTransition = module.Transition;
//call module methods
if (module.Control != null)
{
var mod = module.Control as IModule;
mod?.ShowingModule();
mod = module.Control.DataContext as IModule;
mod?.ShowingModule();
if (mod == null && module == _menu)
{
mod = this as IModule;
mod?.ShowingModule();
}
}
}
void UnloadControl(ModuleVM module)
{
if (module == null)
{
return;
}
//call module methods
if (module.Control != null)
{
var mod = module.Control as IModule;
mod?.HidingModule();
mod = module.Control.DataContext as IModule;
mod?.HidingModule();
if (mod == null && module == _menu)
{
mod = this as IModule;
mod?.HidingModule();
}
}
}
void Module_Selected(ModuleVM module)
{
SelectedModule = module;
}