public void ProviderShouldBindIocContainerBindIocContainerTrue()
{
Type typeFrom = null;
object item = null;
string name = null;
var iocContainer = new IocContainerMock
{
BindToConstantFunc = (type, arg2, arg3) =>
{
typeFrom = type;
item = arg2;
name = arg3;
}
};
ViewModelProvider provider = GetViewModelProvider(iocContainer);
provider.BindIocContainer = true;
var context = new DataContext();
IViewModel viewModel = provider.GetViewModel(container => new ViewModel(), context);
typeFrom.ShouldEqual(typeof(IIocContainer));
item.ShouldEqual(viewModel.IocContainer);
name.ShouldBeNull();
}
public void GetViewModelShouldUseIocContainerToCreateViewModel()
{
var context = new DataContext();
int initialize = 0;
var vm = new ViewModel
{
InitializeViewModel = dataContext =>
{
dataContext.ShouldEqual(context);
++initialize;
}
};
var iocContainer = new IocContainerMock
{
GetFunc = (type, s, arg3) =>
{
type.ShouldEqual(typeof(ViewModel));
return(vm);
}
};
ViewModelProvider provider = GetViewModelProvider(iocContainer);
IViewModel viewModel = provider.GetViewModel(typeof(ViewModel), context);
viewModel.ShouldEqual(vm);
initialize.ShouldEqual(1);
}
protected override void OnAppearing()
{
CommonActions.OnNavigateToPage += CommonActions_OnNavigateToPage;
var vm = ViewModelProvider.GetViewModel <MainPageViewModel>();
vm.RefreshChildren();
base.OnAppearing();
}
public async Task PushAsync <TViewModel>(Action <TViewModel> customInit = null)
where TViewModel : ViewModelBase, new()
{
var viewmodel = ViewModelProvider.GetViewModel <TViewModel>(customInit);
// TODO: Throw new custom exception if unable to create VM?
if (viewmodel != null)
{
await PushAsync(viewmodel);
}
}
public App()
{
InitializeComponent();
DependencyService.Register <IReportingService, ReportingService>();
DependencyService.Register <ViewProvider>();
RegisterViews();
var viewProvider = DependencyService.Get <ViewProvider>();
MainPage = new NavigationPage(viewProvider.GetView(ViewModelProvider.GetViewModel <CalendarsViewModel>()) as Page);
}
public MainPage()
{
//Initialize UI
InitializeComponent();
BindingContext = ViewModelProvider.GetViewModel <MainPageViewModel>();
this.ToolbarItems[0].Icon = ImageSource.FromFile("start.png") as FileImageSource;
this.ToolbarItems[1].Icon = ImageSource.FromFile("stop.png") as FileImageSource;
this.ToolbarItems[2].Icon = ImageSource.FromFile("testnow.png") as FileImageSource;
_logPage = new LogPage();
_chartPage = new ChartPage();
Children.Add(_chartPage);
Children.Add(_logPage);
}
public void WhenInitialazingVmShouldUseObservationModeFromApplicationSettingsNotSpecifiedExplicitly()
{
ApplicationSettings.ViewModelObservationMode = ObservationMode.Both;
var iocContainer = new IocContainerMock();
ViewModelProvider provider = GetViewModelProvider(iocContainer);
var parentViewModel = new ViewModel();
var context = new DataContext
{
{ InitializationConstants.ParentViewModel, parentViewModel }
};
var viewModel = (ViewModel)provider.GetViewModel(container => new ViewModel(), context);
parentViewModel.LocalEventAggregator.GetObservers().Contains(viewModel).ShouldBeTrue();
viewModel.LocalEventAggregator.GetObservers().Contains(parentViewModel).ShouldBeTrue();
}
public void WhenInitialazingVmShouldUseObservationModeFromDataContextModeBoth()
{
const ObservationMode mode = ObservationMode.Both;
var iocContainer = new IocContainerMock();
ViewModelProvider provider = GetViewModelProvider(iocContainer);
var parentViewModel = new ViewModel();
var context = new DataContext
{
{ InitializationConstants.ObservationMode, mode },
{ InitializationConstants.ParentViewModel, parentViewModel }
};
var viewModel = (ViewModel)provider.GetViewModel(container => new ViewModel(), context);
parentViewModel.LocalEventAggregator.GetObservers().Contains(viewModel).ShouldBeTrue();
viewModel.LocalEventAggregator.GetObservers().Contains(parentViewModel).ShouldBeTrue();
}
public void ProviderShouldUseObservationModeFromDataContextModeNone()
{
const ObservationMode mode = ObservationMode.None;
var iocContainer = new IocContainerMock();
ViewModelProvider provider = GetViewModelProvider(iocContainer);
var parentViewModel = new ViewModel();
var context = new DataContext
{
{ InitializationConstants.ObservationMode, mode },
{ InitializationConstants.ParentViewModel, parentViewModel }
};
var viewModel = (ViewModel)provider.GetViewModel(container => new ViewModel(), context);
viewModel.ViewModelEventAggregator.GetObservers().Contains(viewModel).ShouldBeFalse();
viewModel.ViewModelEventAggregator.GetObservers().Contains(viewModel).ShouldBeFalse();
}
public void ProviderShouldNotBindIocContainerBindIocContainerFalse()
{
bool isInvoked = false;
var iocContainer = new IocContainerMock
{
BindToConstantFunc = (type, arg2, arg3) =>
{
isInvoked = true;
}
};
ViewModelProvider provider = GetViewModelProvider(iocContainer);
provider.BindIocContainer = false;
var context = new DataContext();
IViewModel viewModel = provider.GetViewModel(container => new ViewModel(), context);
isInvoked.ShouldBeFalse();
}
public void GetViewModelShouldUseDelegateToCreateViewModel()
{
var iocContainer = new IocContainerMock();
ViewModelProvider provider = GetViewModelProvider(iocContainer);
var context = new DataContext();
int initialize = 0;
var vm = new ViewModel
{
InitializeViewModel = dataContext =>
{
dataContext.ShouldEqual(context);
++initialize;
}
};
IViewModel viewModel = provider.GetViewModel(container => vm, context);
viewModel.ShouldEqual(vm);
initialize.ShouldEqual(1);
}
public SettingsPage()
{
//Initialize UI
InitializeComponent();
//there are a lot of binding bugs in XForms yet, so using this workarounds
_vm = ViewModelProvider.GetViewModel <SettingsViewModel>();
BindingContext = _vm;
urlRadioGroup.CheckedChanged += urlRadioGroup_CheckedChanged;
checkPicker.Items.Clear();
checkPicker.Items.Add("30 Seconds");
checkPicker.Items.Add("1 Minute");
checkPicker.Items.Add("5 Minutes");
checkPicker.Items.Add("10 Minutes");
checkPicker.Items.Add("30 Minutes");
checkPicker.Items.Add("1 Hour");
checkPicker.SelectedIndex = _vm.CheckConnectionTime;
checkPicker.SelectedIndexChanged += checkPicker_SelectedIndexChanged;
dateRadioGroup.CheckedChanged += dateRadioGroup_CheckedChanged;
speedRadioGroup.CheckedChanged += speedRadioGroup_CheckedChanged;
}
public void GetViewModelShouldUseIocContainerToCreateViewModelWithParameters()
{
var parameters = new IIocParameter[0];
const string vmName = "vmName";
int initialize = 0;
var context = new DataContext
{
{ InitializationConstants.ViewModelBindingName, vmName },
{ InitializationConstants.IocParameters, parameters }
};
var vm = new ViewModel
{
InitializeViewModel = dataContext =>
{
dataContext.ShouldEqual(context);
++initialize;
}
};
var iocContainer = new IocContainerMock
{
GetFunc = (type, s, arg3) =>
{
s.ShouldEqual(vmName);
arg3.ShouldEqual(parameters);
type.ShouldEqual(typeof(ViewModel));
return(vm);
}
};
ViewModelProvider provider = GetViewModelProvider(iocContainer);
IViewModel viewModel = provider.GetViewModel(typeof(ViewModel), context);
viewModel.ShouldEqual(vm);
initialize.ShouldEqual(1);
}
protected internal T GetViewModel <T>(ObservationMode?observationMode = null, params DataConstantValue[] parameters) where T : IViewModel
{
return(ViewModelProvider.GetViewModel <T>(this, observationMode, parameters));
}
protected internal T GetViewModel <T>([NotNull] GetViewModelDelegate <T> getViewModelGeneric, ObservationMode?observationMode = null,
params DataConstantValue[] parameters) where T : class, IViewModel
{
return(ViewModelProvider.GetViewModel(getViewModelGeneric, this, observationMode, parameters));
}
protected internal IViewModel GetViewModel([NotNull] Type viewModelType, ObservationMode?observationMode = null, params DataConstantValue[] parameters)
{
return(ViewModelProvider.GetViewModel(viewModelType, this, observationMode, parameters));
}
/// <summary>
/// Creates an instance of the specified view model.
/// </summary>
/// <param name="getViewModel">The specified delegate to create view model.</param>
/// <param name="containerCreationMode">The value that is responsible to initialize the IocContainer.</param>
/// <param name="observationMode">The value that is responsible for listen messages in created view model.</param>
/// <param name="parameters">The specified parameters to get view-model.</param>
/// <returns>
/// An instance of <see cref="IViewModel" />.
/// </returns>
protected internal IViewModel GetViewModel([NotNull] GetViewModelDelegate <IViewModel> getViewModel, ObservationMode?observationMode = null,
IocContainerCreationMode?containerCreationMode = null, params DataConstantValue[] parameters)
{
EnsureNotDisposed();
return(ViewModelProvider.GetViewModel(getViewModel, this, observationMode, containerCreationMode, parameters));
}
protected internal IViewModel GetViewModel([NotNull] GetViewModelDelegate <IViewModel> getViewModel, ObservationMode?observationMode = null,
params DataConstantValue[] parameters)
{
return(ViewModelProvider.GetViewModel(getViewModel, this, observationMode, parameters));
}
public SimpleSamplePage()
{
InitializeComponent();
BindingContext = ViewModelProvider.GetViewModel <SimpleSampleViewModel>();
}
/// <summary>
/// Creates an instance of the specified view model.
/// </summary>
/// <param name="viewModelType">The type of view model.</param>
/// <param name="containerCreationMode">The value that is responsible to initialize the IocContainer.</param>
/// <param name="observationMode">The value that is responsible for listen messages in created view model.</param>
/// <param name="parameters">The specified parameters to get view-model.</param>
/// <returns>
/// An instance of <see cref="IViewModel" />.
/// </returns>
protected internal IViewModel GetViewModel([NotNull, ViewModelTypeRequired] Type viewModelType, ObservationMode?observationMode = null,
IocContainerCreationMode?containerCreationMode = null, params DataConstantValue[] parameters)
{
EnsureNotDisposed();
return(ViewModelProvider.GetViewModel(viewModelType, this, observationMode, containerCreationMode, parameters));
}
/// <summary>
/// Creates an instance of the specified view model.
/// </summary>
/// <typeparam name="T">The type of view model.</typeparam>
/// <param name="containerCreationMode">The value that is responsible to initialize the IocContainer.</param>
/// <param name="observationMode">The value that is responsible for listen messages in created view model.</param>
/// <param name="parameters">The specified parameters to get view-model.</param>
/// <returns>
/// An instance of <see cref="IViewModel" />.
/// </returns>
protected internal T GetViewModel <T>(ObservationMode?observationMode = null,
IocContainerCreationMode?containerCreationMode = null, params DataConstantValue[] parameters) where T : IViewModel
{
EnsureNotDisposed();
return(ViewModelProvider.GetViewModel <T>(this, observationMode, containerCreationMode, parameters));
}
/// <summary>
/// Set datacontex of this page to specific ViewModel instance
/// </summary>
/// <typeparam name="T">ViewModel</typeparam>
public void SetViewModel <T>() where T : BaseViewModel
{
BindingContext = ViewModelProvider.GetViewModel <T>();
}
public ViewModel GetViewModel(string viewModelName, string persistenceModelName = null)
{
return(ViewModelProvider.GetViewModel(viewModelName, GetPersistenceModel(persistenceModelName)));
}