public NavigatingCancelEventArgs(IViewMappingItem mapping, NavigationMode navigationMode, string parameter)
{
_mapping = mapping;
_navigationMode = navigationMode;
_parameter = parameter;
_isCancelable = true;
}
protected virtual void StartActivity(Context context, Intent intent, IViewMappingItem source, IDataContext dataContext)
{
var activity = context.GetActivity();
Action <Context, Intent, IViewMappingItem, IDataContext> startAction = null;
if (activity != null)
{
startAction = activity.GetBindingMemberValue(AttachedMembers.Activity.StartActivityDelegate);
}
if (startAction == null)
{
var bundle = dataContext.GetData(NavigationConstants.NavigationParameter) as Bundle;
if (bundle == null)
{
context.StartActivity(intent);
}
else
{
context.StartActivity(intent, bundle);
}
}
else
{
startAction(context, intent, source, dataContext);
}
}
/// <summary>
/// Adds the view mapping to internal collection.
/// </summary>
protected void AddMapping(IViewMappingItem mappingItem, bool throwOnError)
{
List <IViewMappingItem> list;
if (!_viewTypeToMapping.TryGetValue(mappingItem.ViewType, out list))
{
list = new List <IViewMappingItem>();
_viewTypeToMapping[mappingItem.ViewType] = list;
}
list.Add(mappingItem);
Dictionary <string, IViewMappingItem> value;
if (!_viewModelToMapping.TryGetValue(mappingItem.ViewModelType, out value))
{
value = new Dictionary <string, IViewMappingItem>();
_viewModelToMapping[mappingItem.ViewModelType] = value;
}
IViewMappingItem item;
string name = mappingItem.Name ?? string.Empty;
if (value.TryGetValue(name, out item))
{
if (throwOnError)
{
throw ExceptionManager.DuplicateViewMapping(item.ViewType, item.ViewModelType, item.Name);
}
return;
}
value[name] = mappingItem;
Tracer.Info("The view mapping to view model was created: ({0} ---> {1}), name: {2}",
mappingItem.ViewModelType, mappingItem.ViewType, mappingItem.Name);
}
public NavigatingCancelEventArgs(IViewMappingItem mapping, NavigationMode navigationMode, string parameter)
{
_mapping = mapping;
_navigationMode = navigationMode;
_parameter = parameter;
_isCancelable = true;
}
/// <summary>
/// Displays the content located at the specified <see cref="IViewMappingItem" />.
/// </summary>
/// <param name="source">
/// The <c>IViewPageMappingItem</c> of the content to display.
/// </param>
/// <param name="parameter">
/// A <see cref="T:System.Object" /> that contains data to be used for processing during
/// navigation.
/// </param>
/// <param name="dataContext">
/// The specified <see cref="IDataContext" />.
/// </param>
/// <returns>
/// <c>true</c> if the content was successfully displayed; otherwise, <c>false</c>.
/// </returns>
public bool Navigate(IViewMappingItem source, object parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
if (!RaiseNavigating(new NavigatingCancelEventArgs(source, NavigationMode.New, parameter)))
{
return(false);
}
if (dataContext == null)
{
dataContext = DataContext.Empty;
}
var viewModel = dataContext.GetData(NavigationConstants.ViewModel);
Page page;
if (viewModel == null)
{
page = (Page)ServiceProvider.IocContainer.Get(source.ViewType);
}
else
{
page = (Page)ViewManager.GetOrCreateView(viewModel, null, dataContext).GetUnderlyingView();
}
page.SetNavigationParameter(parameter);
_rootPage.PushAsync(page);
return(true);
}
private IWindowViewMediator TryCreateWindowViewMediator(IViewModel viewModel, IDataContext context)
{
bool data;
if (context.TryGetData(NavigationConstants.SuppressWindowNavigation, out data) && data)
{
return(null);
}
var viewName = viewModel.GetViewName(context);
IViewMappingItem mappingItem = ViewMappingProvider.FindMappingForViewModel(viewModel.GetType(), viewName, false);
if (mappingItem == null)
{
return(null);
}
IWindowViewMediator viewMediator;
if (!viewModel.Settings.Metadata.TryGetData(WindowViewMediatorConstant, out viewMediator))
{
viewMediator = CreateWindowViewMediator(viewModel, mappingItem.ViewType, context);
if (viewMediator != null)
{
viewModel.Settings.Metadata.Add(WindowViewMediatorConstant, viewMediator);
}
}
return(viewMediator);
}
bool INavigationService.Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
if (Navigate == null)
{
return(false);
}
return(Navigate(source, parameter, dataContext));
}
public NavigatingCancelEventArgs(IViewMappingItem mapping, NavigationMode navigationMode, string parameter, IDataContext context)
{
_mapping = mapping;
_navigationMode = navigationMode;
_parameter = parameter;
_context = context.ToNonReadOnly();
_isCancelable = true;
}
protected virtual object GetView([NotNull] IViewModel viewModel, [NotNull] IDataContext context)
{
string viewBindingName = viewModel.GetViewName(context);
Type vmType = viewModel.GetType();
IViewMappingItem mappingItem = ViewMappingProvider.FindMappingForViewModel(vmType, viewBindingName, true);
return(GetView(mappingItem, context));
}
public NavigatingCancelEventArgs(IViewMappingItem mapping, NavigationMode navigationMode, string parameter, bool isCancelable, bool isBackButton)
{
_mapping = mapping;
_navigationMode = navigationMode;
_parameter = parameter;
_isCancelable = isCancelable;
_isBackButton = isBackButton;
}
public NavigatingCancelEventArgs(IViewMappingItem mapping, NavigationMode navigationMode, string parameter, bool isCancelable, bool isBackButton)
{
_mapping = mapping;
_navigationMode = navigationMode;
_parameter = parameter;
_isCancelable = isCancelable;
_isBackButton = isBackButton;
}
public void VmProviderShouldReturnMappingWithoutNameBasedOnNamedConventionInheritedVm2()
{
IViewMappingProvider viewMappingProvider = GetViewMappingProvider(typeof(MappingViewModel), typeof(ChildMappingViewModel), typeof(MappingView), typeof(ChildMappingView));
IViewMappingItem viewMap = viewMappingProvider.FindMappingForViewModel(typeof(ChildMappingViewModel), null, true);
viewMap.Name.ShouldBeNull();
viewMap.ViewModelType.ShouldEqual(typeof(ChildMappingViewModel));
viewMap.ViewType.ShouldEqual(typeof(ChildMappingView));
}
public void VmProviderShouldResolveGenericVm()
{
IViewMappingProvider viewMappingProvider = GetViewMappingProvider(typeof(MappingViewGeneric));
IViewMappingItem mappingItem = viewMappingProvider.FindMappingForViewModel(typeof(GridViewModel <object>), null, true);
mappingItem.ViewModelType.ShouldEqual(typeof(GridViewModel <>));
mappingItem.ViewType.ShouldEqual(typeof(MappingViewGeneric));
mappingItem.Name.ShouldBeNull();
}
/// <summary>
/// Displays the content located at the specified <see cref="IViewMappingItem" />.
/// </summary>
/// <param name="source">
/// The <c>IViewPageMappingItem</c> of the content to display.
/// </param>
/// <param name="parameter">
/// A <see cref="T:System.Object" /> that contains data to be used for processing during
/// navigation.
/// </param>
/// <param name="dataContext">
/// The specified <see cref="IDataContext" />.
/// </param>
/// <returns>
/// <c>true</c> if the content was successfully displayed; otherwise, <c>false</c>.
/// </returns>
public virtual bool Navigate(IViewMappingItem source, object parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
if (!RaiseNavigating(new NavigatingCancelEventArgs(source, NavigationMode.New, parameter)))
{
return(false);
}
bool isFirstActivity = _currentActivity == null;
Context context;
var activity = _currentActivity ?? SplashScreenActivityBase.Current;
if (activity == null)
{
context = Application.Context;
}
else
{
var attr = activity.GetType()
.GetCustomAttributes(typeof(ActivityAttribute), false)
.OfType <ActivityAttribute>()
.FirstOrDefault();
if (attr == null || !attr.NoHistory)
{
_prevIntent = activity.Intent;
}
context = activity;
}
var intent = new Intent(context, source.ViewType);
if (activity == null)
{
intent.AddFlags(ActivityFlags.NewTask);
}
if (isFirstActivity)
{
intent.PutExtra(FirstActivityKey, true);
}
if (parameter != null)
{
var s = parameter as string;
if (s == null)
{
using (var stream = _serializer.Serialize(parameter))
intent.PutExtra(ParameterSerializer, stream.ToArray());
}
else
{
intent.PutExtra(ParameterString, s);
}
}
_isNew = true;
_parameter = parameter;
context.StartActivity(intent);
return(true);
}
public void VmProviderShouldReturnMappingWithoutNameUsingAttribute()
{
IViewMappingProvider viewMappingProvider = GetViewMappingProvider(typeof(MappingViewModel),
typeof(MappingView), typeof(MappingViewWithAttribute));
IViewMappingItem viewMap = viewMappingProvider.FindMappingForViewModel(typeof(MappingViewModel), null, true);
viewMap.Name.ShouldBeNull();
viewMap.ViewModelType.ShouldEqual(typeof(MappingViewModel));
viewMap.ViewType.ShouldEqual(typeof(MappingViewWithAttribute));
}
public void VmProviderShouldReturnMappingWithUriUsingAttribute()
{
IViewMappingProvider viewMappingProvider = GetViewMappingProvider(typeof(MappingViewModel),
typeof(MappingView), typeof(MappingViewWithUri));
IViewMappingItem viewMap = viewMappingProvider.FindMappingForViewModel(typeof(MappingViewModel), null, true);
viewMap.Name.ShouldBeNull();
viewMap.Uri.ShouldEqual(new Uri(TestUrl, UriKind.Absolute));
viewMap.ViewModelType.ShouldEqual(typeof(MappingViewModel));
viewMap.ViewType.ShouldEqual(typeof(MappingViewWithUri));
}
public bool Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
Should.NotBeNull(source, nameof(source));
var result = NavigateInternal(source, parameter);
if (result)
{
ClearNavigationStackIfNeed(dataContext);
}
return(result);
}
private static bool CanShowViewModelNavigationPresenter(IViewModel viewModel, IDataContext dataContext,
IViewModelPresenter arg3)
{
string viewName = viewModel.GetViewName(dataContext);
IIocContainer container = viewModel.GetIocContainer(true);
var mappingProvider = container.Get <IViewMappingProvider>();
IViewMappingItem mappingItem = mappingProvider.FindMappingForViewModel(viewModel.GetType(), viewName, false);
return(mappingItem != null &&
typeof(Page).GetTypeInfo().IsAssignableFrom(mappingItem.ViewType.GetTypeInfo()));
}
private void AddMapping(IViewMappingItem mappingItem, bool throwOnError, bool rewrite = false)
{
if (!rewrite)
{
var builder = ToolkitServiceProvider.BootstrapCodeBuilder;
if (builder != null)
{
if (!_isCodeBuilderInitialized)
{
builder.Append(typeof(ViewMappingProvider).Name, $"var mappingProvider = ({typeof(ViewMappingProvider).FullName}) context.{nameof(IModuleContext.IocContainer)}.Get(typeof({typeof(IViewMappingProvider).FullName}));");
_isCodeBuilderInitialized = true;
}
string newUri = mappingItem.Uri == ViewMappingItem.Empty ? "null" : $"new {typeof(Uri).FullName}(\"{mappingItem.Uri}\")";
builder.Append(typeof(ViewMappingProvider).Name,
$"mappingProvider.{nameof(AddMapping)}(new {typeof(ViewMappingItem).FullName}(typeof({mappingItem.ViewModelType.GetPrettyName()}), typeof({mappingItem.ViewType.GetPrettyName()}), \"{mappingItem.Name}\", {newUri}));");
}
}
List <IViewMappingItem> list;
if (!_viewTypeToMapping.TryGetValue(mappingItem.ViewType, out list))
{
list = new List <IViewMappingItem>();
_viewTypeToMapping[mappingItem.ViewType] = list;
}
list.Add(mappingItem);
Dictionary <string, IViewMappingItem> value;
if (!_viewModelToMapping.TryGetValue(mappingItem.ViewModelType, out value))
{
value = new Dictionary <string, IViewMappingItem>();
_viewModelToMapping[mappingItem.ViewModelType] = value;
}
IViewMappingItem item;
string name = mappingItem.Name ?? string.Empty;
if (value.TryGetValue(name, out item))
{
if (throwOnError)
{
throw ExceptionManager.DuplicateViewMapping(item.ViewType, item.ViewModelType, item.Name);
}
if (!rewrite)
{
return;
}
}
value[name] = mappingItem;
if (Tracer.TraceInformation)
{
Tracer.Info("The view mapping to view model was created: ({0} ---> {1}), name: {2}",
mappingItem.ViewModelType, mappingItem.ViewType, mappingItem.Name);
}
}
public bool Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
Should.NotBeNull(source, nameof(source));
Should.NotBeNull(dataContext, nameof(dataContext));
dataContext.TryGetData(NavigationProvider.BringToFront, out _bringToFront);
var result = Navigate(source.ViewType, parameter, dataContext);
if (result)
{
ClearNavigationStackIfNeed(dataContext);
}
return(result);
}
protected virtual object GetView([NotNull] IViewMappingItem viewMapping, [NotNull] IDataContext context)
{
object viewObj = ServiceProvider.Get(viewMapping.ViewType);
if (ApplicationSettings.ViewManagerDisposeView)
{
ServiceProvider.AttachedValueProvider.SetValue(viewObj, ViewManagerCreatorPath, null);
}
if (Tracer.TraceInformation)
{
Tracer.Info("The view {0} for the view-model {1} was created.", viewObj.GetType(), viewMapping.ViewModelType);
}
return(viewObj);
}
public virtual void Start()
{
Initialize();
var app = MvvmApplication.Current;
var iocContainer = app.IocContainer;
var ctx = new DataContext(app.Context);
if (!ctx.Contains(NavigationConstants.IsDialog))
{
ctx.Add(NavigationConstants.IsDialog, false);
}
var viewModelType = app.GetStartViewModelType();
NavigationWindow rootWindow = null;
var mappingProvider = iocContainer.Get <IViewMappingProvider>();
IViewMappingItem mapping = mappingProvider.FindMappingForViewModel(viewModelType, ctx.GetData(NavigationConstants.ViewName), true);
if (typeof(Page).IsAssignableFrom(mapping.ViewType))
{
rootWindow = CreateNavigationWindow();
var service = CreateNavigationService(rootWindow);
iocContainer.BindToConstant(service);
}
var vm = iocContainer
.Get <IViewModelProvider>()
.GetViewModel(viewModelType, ctx);
vm.ShowAsync((model, result) =>
{
model.Dispose();
if (ShutdownOnMainViewModelClose)
{
Application application = Application.Current;
if (application != null)
{
Action action = application.Shutdown;
application.Dispatcher.BeginInvoke(action);
}
}
}, context: ctx);
if (rootWindow != null)
{
IWindowViewMediator mediator = new WindowViewMediator(rootWindow, vm, iocContainer.Get <IThreadManager>(),
iocContainer.Get <IViewManager>(), iocContainer.Get <IWrapperManager>(),
iocContainer.Get <IOperationCallbackManager>());
mediator.UpdateView(new PlatformWrapperRegistrationModule.WindowViewWrapper(rootWindow), true, ctx);
rootWindow.Show();
}
}
public bool Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
if (dataContext == null)
{
dataContext = DataContext.Empty;
}
var result = Navigate(source.ViewType, parameter, dataContext.GetData(NavigationConstants.ViewModel));
if (result)
{
ClearNavigationStackIfNeed(dataContext);
}
return(result);
}
/// <summary>
/// Displays the content located at the specified <see cref="IViewMappingItem" />.
/// </summary>
/// <param name="source">
/// The <c>IViewPageMappingItem</c> of the content to display.
/// </param>
/// <param name="parameter">
/// A <see cref="T:System.Object" /> that contains data to be used for processing during
/// navigation.
/// </param>
/// <param name="dataContext">
/// The specified <see cref="IDataContext" />.
/// </param>
/// <returns>
/// <c>true</c> if the content was successfully displayed; otherwise, <c>false</c>.
/// </returns>
public bool Navigate(IViewMappingItem source, object parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
Uri uri = source.Uri;
if (parameter != null)
{
var s = parameter as string;
var uriParameter = s == null
? new KeyValuePair <string, string>(UriParameterSerializer, _serializer.SerializeToBase64String(parameter))
: new KeyValuePair <string, string>(UriParameterString, s);
uri = uri.MergeUri(new[] { uriParameter });
}
return(_frame.Navigate(uri));
}
private bool NavigateInternal(IViewMappingItem source, string parameter)
{
Uri uri = source.Uri;
if (!string.IsNullOrEmpty(parameter))
{
uri =
uri.MergeUri(new[]
{
new KeyValuePair <string, string>(UriParameterString, parameter),
new KeyValuePair <string, string>("_timestamp",
DateTime.UtcNow.Ticks.ToString(CultureInfo.InvariantCulture))
});
}
return(_frame.Navigate(uri));
}
private bool NavigateInternal(IViewMappingItem source, object parameter)
{
if (_useUrlNavigation)
{
if (parameter == null)
{
return(_window.Navigate(source.Uri));
}
return(_window.Navigate(source.Uri, parameter));
}
if (parameter == null)
{
return(_window.Navigate(CreateView(source, null)));
}
return(_window.Navigate(CreateView(source, parameter), parameter));
}
/// <summary>
/// Displays the content located at the specified <see cref="IViewMappingItem" />.
/// </summary>
/// <param name="source">
/// The <c>IViewPageMappingItem</c> of the content to display.
/// </param>
/// <param name="parameter">
/// A <see cref="T:System.Object" /> that contains data to be used for processing during
/// navigation.
/// </param>
/// <param name="dataContext">
/// The specified <see cref="IDataContext" />.
/// </param>
/// <returns>
/// <c>true</c> if the content was successfully displayed; otherwise, <c>false</c>.
/// </returns>
public bool Navigate(IViewMappingItem source, object parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
if (_useUrlNavigation)
{
if (parameter == null)
{
return(_window.Navigate(source.Uri));
}
return(_window.Navigate(source.Uri, parameter));
}
if (parameter == null)
{
return(_window.Navigate(_viewFactory(source.ViewType)));
}
return(_window.Navigate(_viewFactory(source.ViewType), parameter));
}
public Task <object> GetViewAsync(IViewMappingItem viewMapping, IDataContext context = null)
{
Should.NotBeNull(viewMapping, nameof(viewMapping));
var tcs = new TaskCompletionSource <object>();
ThreadManager.InvokeOnUiThreadAsync(() =>
{
if (context == null)
{
context = DataContext.Empty;
}
object view = GetView(viewMapping, context);
ViewCreated?.Invoke(this, new ViewCreatedEventArgs(view, null, viewMapping, context));
tcs.SetResult(view);
});
return(tcs.Task);
}
/// <summary>
/// Displays the content located at the specified <see cref="IViewMappingItem" />.
/// </summary>
/// <param name="source">
/// The <c>IViewPageMappingItem</c> of the content to display.
/// </param>
/// <param name="parameter">
/// A <see cref="T:System.Object" /> that contains data to be used for processing during
/// navigation.
/// </param>
/// <param name="dataContext">
/// The specified <see cref="IDataContext" />.
/// </param>
/// <returns>
/// <c>true</c> if the content was successfully displayed; otherwise, <c>false</c>.
/// </returns>
public virtual bool Navigate(IViewMappingItem source, object parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
EnsureInitialized();
if (!RaiseNavigating(new NavigatingCancelEventArgs(source, NavigationMode.New, parameter)))
{
return(false);
}
if (dataContext == null)
{
dataContext = DataContext.Empty;
}
IViewModel viewModel = dataContext.GetData(NavigationConstants.ViewModel);
UIViewController viewController;
if (viewModel == null)
{
viewController = (UIViewController)ServiceProvider.IocContainer.Get(source.ViewType);
}
else
{
viewController = (UIViewController)ViewManager.GetOrCreateView(viewModel, null, dataContext).GetUnderlyingView();
}
viewController.SetNavigationParameter(parameter);
bool shouldNavigate = true;
if (_window != null)
{
var controller = _window.RootViewController as UINavigationController;
if (controller == null)
{
shouldNavigate = false;
controller = new MvvmNavigationController(viewController);
_window.RootViewController = controller;
}
InitializeNavigationController(controller);
}
if (shouldNavigate)
{
NavigationController.PushViewController(viewController, true);
}
RaiseNavigated(viewController, NavigationMode.New, parameter);
return(true);
}
protected virtual void StartActivity(Context context, Intent intent, IViewMappingItem source, IDataContext dataContext)
{
var activity = context.GetActivity();
Action <Context, Intent, IViewMappingItem, IDataContext> startAction = null;
if (activity != null)
{
startAction = activity.GetBindingMemberValue(AttachedMembers.Activity.StartActivityDelegate);
}
if (startAction == null)
{
context.StartActivity(intent);
}
else
{
startAction(context, intent, source, dataContext);
}
}
public virtual bool Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
if (_rootPage == null)
{
return(false);
}
if (!RaiseNavigating(new NavigatingCancelEventArgs(source, NavigationMode.New, parameter, true, false)))
{
return(false);
}
if (dataContext == null)
{
dataContext = DataContext.Empty;
}
var viewModel = dataContext.GetData(NavigationConstants.ViewModel);
bool animated;
if (dataContext.TryGetData(NavigationConstants.UseAnimations, out animated))
{
if (viewModel != null)
{
viewModel.Settings.State.AddOrUpdate(NavigationConstants.UseAnimations, animated);
}
}
else
{
animated = UseAnimations;
}
Page page;
if (viewModel == null)
{
page = (Page)ServiceProvider.Get <IViewManager>().GetViewAsync(source, dataContext).Result;
}
else
{
page = (Page)ViewManager.GetOrCreateView(viewModel, null, dataContext);
}
page.SetNavigationParameter(parameter);
ClearNavigationStackIfNeed(dataContext, page, _rootPage.PushAsync(page, animated));
return(true);
}
/// <summary>
/// Gets an instance of <see cref="IView" /> for the specified view model.
/// </summary>
/// <param name="viewModel">The view model which is now initialized.</param>
/// <param name="dataContext">The specified <see cref="IDataContext" />.</param>
/// <returns>
/// An instance of <see cref="IView" />.
/// </returns>
protected virtual IView GetView(IViewModel viewModel, IDataContext dataContext)
{
var viewBindingName = viewModel.GetViewName(dataContext);
Type viewType = viewModel.GetType();
IViewMappingItem mappingItem = ViewMappingProvider.FindMappingForViewModel(viewType, viewBindingName, true);
object viewObj = viewModel.GetIocContainer(true).Get(mappingItem.ViewType);
var view = viewObj as IView;
if (view == null)
{
view = WrapToView(viewObj, dataContext);
}
else if (DisposeView)
{
ServiceProvider.AttachedValueProvider.SetValue(viewObj, ViewManagerCreatorPath, null);
}
Tracer.Info("The view {0} for the view-model {1} was created.", view.GetUnderlyingView().GetType(), viewModel.GetType());
return(view);
}
private void AddMapping(IViewMappingItem mappingItem, bool throwOnError, bool rewrite = false)
{
var builder = ServiceProvider.BootstrapCodeBuilder;
if (builder != null)
{
string newUri = mappingItem.Uri == ViewMappingItem.Empty ? "null" : $"new {typeof(Uri).FullName}(\"{mappingItem.Uri}\")";
builder.Append(typeof(ViewMappingProvider).Name,
$"mappingProvider.{nameof(AddMapping)}(new {typeof(ViewMappingItem).FullName}(typeof({mappingItem.ViewModelType.GetPrettyName()}), typeof({mappingItem.ViewType.GetPrettyName()}), \"{mappingItem.Name}\", {newUri}));");
}
List<IViewMappingItem> list;
if (!_viewTypeToMapping.TryGetValue(mappingItem.ViewType, out list))
{
list = new List<IViewMappingItem>();
_viewTypeToMapping[mappingItem.ViewType] = list;
}
list.Add(mappingItem);
Dictionary<string, IViewMappingItem> value;
if (!_viewModelToMapping.TryGetValue(mappingItem.ViewModelType, out value))
{
value = new Dictionary<string, IViewMappingItem>();
_viewModelToMapping[mappingItem.ViewModelType] = value;
}
IViewMappingItem item;
string name = mappingItem.Name ?? string.Empty;
if (value.TryGetValue(name, out item))
{
if (throwOnError)
throw ExceptionManager.DuplicateViewMapping(item.ViewType, item.ViewModelType, item.Name);
if (!rewrite)
return;
}
value[name] = mappingItem;
if (Tracer.TraceInformation)
Tracer.Info("The view mapping to view model was created: ({0} ---> {1}), name: {2}",
mappingItem.ViewModelType, mappingItem.ViewType, mappingItem.Name);
}
public virtual bool Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
if (!RaiseNavigating(new NavigatingCancelEventArgs(source, NavigationMode.New, parameter)))
return false;
if (dataContext == null)
dataContext = DataContext.Empty;
var activity = PlatformExtensions.CurrentActivity ?? SplashScreenActivityBase.Current;
var context = activity ?? Application.Context;
var intent = new Intent(context, source.ViewType);
if (activity == null)
intent.AddFlags(ActivityFlags.NewTask);
else if (dataContext.GetData(NavigationConstants.ClearBackStack))
{
if (PlatformExtensions.IsApiLessThanOrEqualTo10)
{
intent.AddFlags(ActivityFlags.NewTask | ActivityFlags.ClearTop);
ServiceProvider.EventAggregator.Publish(this, MvvmActivityMediator.FinishActivityMessage.Instance);
}
else
intent.AddFlags(ActivityFlags.NewTask | ActivityFlags.ClearTask);
dataContext.AddOrUpdate(NavigationProvider.ClearNavigationCache, true);
}
if (parameter != null)
intent.PutExtra(ParameterString, parameter);
_isNew = true;
_parameter = parameter;
StartActivity(context, intent, dataContext);
return true;
}
public bool Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
Should.NotBeNull(source, nameof(source));
if (dataContext == null)
dataContext = DataContext.Empty;
dataContext.TryGetData(NavigationProviderConstants.BringToFront, out _bringToFront);
var bringToFront = _bringToFront;
var result = Navigate(source.ViewType, parameter, dataContext.GetData(NavigationConstants.ViewModel));
if (result)
{
if (bringToFront)
dataContext.AddOrUpdate(NavigationProviderConstants.InvalidateCache, true);
ClearNavigationStackIfNeed(dataContext);
}
return result;
}
public Task<object> GetViewAsync(IViewMappingItem viewMapping, IDataContext context = null)
{
Should.NotBeNull(viewMapping, nameof(viewMapping));
var tcs = new TaskCompletionSource<object>();
ThreadManager.InvokeOnUiThreadAsync(() =>
{
if (context == null)
context = DataContext.Empty;
object view = GetView(viewMapping, context);
ViewCreated?.Invoke(this, null, view, context);
tcs.SetResult(view);
});
return tcs.Task;
}
public virtual bool Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
Should.NotBeNull(source, nameof(source));
if (dataContext == null)
dataContext = DataContext.Empty;
bool bringToFront;
dataContext.TryGetData(NavigationProviderConstants.BringToFront, out bringToFront);
if (!RaiseNavigating(new NavigatingCancelEventArgs(source, bringToFront ? NavigationMode.Refresh : NavigationMode.New, parameter)))
return false;
UIViewController viewController = null;
IViewModel viewModel = dataContext.GetData(NavigationConstants.ViewModel);
if (bringToFront && viewModel != null)
{
var viewControllers = new List<UIViewController>(NavigationController.ViewControllers);
for (int i = 0; i < viewControllers.Count; i++)
{
var controller = viewControllers[i];
if (controller.DataContext() == viewModel)
{
viewControllers.RemoveAt(i);
viewController = controller;
NavigationController.ViewControllers = viewControllers.ToArray();
dataContext.AddOrUpdate(NavigationProviderConstants.InvalidateCache, true);
break;
}
}
}
if (viewController == null)
{
if (viewModel == null)
viewController = (UIViewController)ServiceProvider.Get<IViewManager>().GetViewAsync(source, dataContext).Result;
else
viewController = (UIViewController)ViewManager.GetOrCreateView(viewModel, null, dataContext);
}
viewController.SetNavigationParameter(parameter);
bool shouldNavigate = true;
if (_window != null)
{
bool navigated;
InitializeNavigationController(GetNavigationController(_window, viewController, out navigated));
shouldNavigate = !navigated;
_window = null;
}
if (shouldNavigate)
{
bool animated;
if (dataContext.TryGetData(NavigationConstants.UseAnimations, out animated))
{
if (viewModel != null)
viewModel.Settings.State.AddOrUpdate(NavigationConstants.UseAnimations, animated);
}
else
animated = UseAnimations;
if (!ClearNavigationStackIfNeed(viewController, dataContext, animated))
NavigationController.PushViewController(viewController, animated);
}
var view = viewController as IViewControllerView;
if (view == null || view.Mediator.IsAppeared)
RaiseNavigated(viewController, bringToFront ? NavigationMode.Refresh : NavigationMode.New, parameter);
else
{
if (bringToFront)
view.Mediator.ViewDidAppearHandler += OnViewDidAppearHandlerRefresh;
else
view.Mediator.ViewDidAppearHandler += OnViewDidAppearHandlerNew;
}
return true;
}
private bool NavigateInternal(IViewMappingItem source, object parameter)
{
if (_useUrlNavigation)
{
if (parameter == null)
return _frame.Navigate(source.Uri);
return _frame.Navigate(source.Uri, parameter);
}
if (parameter == null)
return _frame.Navigate(_viewFactory(source.ViewType));
return _frame.Navigate(_viewFactory(source.ViewType), parameter);
}
public void AddMapping(IViewMappingItem mappingItem)
{
AddMapping(mappingItem, false, true);
}
private bool NavigateInternal(IViewMappingItem source, string parameter)
{
Uri uri = source.Uri;
if (!string.IsNullOrEmpty(parameter))
{
uri =
uri.MergeUri(new[]
{
new KeyValuePair<string, string>(UriParameterString, parameter),
new KeyValuePair<string, string>("_timestamp",
DateTime.UtcNow.Ticks.ToString(CultureInfo.InvariantCulture))
});
}
return _frame.Navigate(uri);
}
public virtual bool Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
Should.NotBeNull(source, nameof(source));
if (dataContext == null)
dataContext = DataContext.Empty;
bool bringToFront;
dataContext.TryGetData(NavigationProviderConstants.BringToFront, out bringToFront);
if (!RaiseNavigating(new NavigatingCancelEventArgs(source, bringToFront ? NavigationMode.Refresh : NavigationMode.New, parameter)))
return false;
var activity = PlatformExtensions.CurrentActivity ?? SplashScreenActivityBase.Current;
var context = activity ?? Application.Context;
var intent = new Intent(context, source.ViewType);
if (activity == null)
intent.AddFlags(ActivityFlags.NewTask);
else if (dataContext.GetData(NavigationConstants.ClearBackStack))
{
if (PlatformExtensions.IsApiLessThanOrEqualTo10)
intent.AddFlags(ActivityFlags.NewTask | ActivityFlags.ClearTop);
else
intent.AddFlags(ActivityFlags.NewTask | ActivityFlags.ClearTask);
ServiceProvider.EventAggregator.Publish(this, MvvmActivityMediator.FinishActivityMessage.Instance);
dataContext.AddOrUpdate(NavigationProviderConstants.InvalidateAllCache, true);
}
if (parameter != null)
intent.PutExtra(ParameterString, parameter);
if (bringToFront)
{
_isReorder = true;
//http://stackoverflow.com/questions/20695522/puzzling-behavior-with-reorder-to-front
//http://code.google.com/p/android/issues/detail?id=63570#c2
bool closed = false;
if (PlatformExtensions.IsApiGreaterThanOrEqualTo19)
{
var viewModel = dataContext.GetData(NavigationConstants.ViewModel);
if (viewModel != null)
{
var view = viewModel.Settings.Metadata.GetData(ViewModelConstants.View);
var activityView = ToolkitExtensions.GetUnderlyingView<object>(view) as Activity;
if (activityView != null && activityView.IsTaskRoot)
{
var message = new MvvmActivityMediator.FinishActivityMessage(viewModel);
ServiceProvider.EventAggregator.Publish(this, message);
closed = message.Finished;
}
}
}
if (!closed)
intent.AddFlags(ActivityFlags.ReorderToFront);
dataContext.AddOrUpdate(NavigationProviderConstants.InvalidateCache, true);
}
_isNew = true;
_parameter = parameter;
StartActivity(context, intent, source, dataContext);
return true;
}
private bool NavigateInternal(IViewMappingItem source, object parameter)
{
Uri uri = source.Uri;
if (parameter != null)
{
var s = parameter as string;
KeyValuePair<string, string> uriParameter = s == null
? new KeyValuePair<string, string>(UriParameterSerializer,
_serializer.SerializeToBase64String(parameter))
: new KeyValuePair<string, string>(UriParameterString, s);
uri =
uri.MergeUri(new[]
{
uriParameter,
new KeyValuePair<string, string>("_timestamp",
DateTime.UtcNow.Ticks.ToString(CultureInfo.InvariantCulture))
});
}
return _frame.Navigate(uri);
}
public Task<object> GetViewAsync(IViewMappingItem viewMapping, IDataContext context = null)
{
Should.NotBeNull(viewMapping, "viewMapping");
var tcs = new TaskCompletionSource<object>();
ThreadManager.InvokeOnUiThreadAsync(() =>
{
if (context == null)
context = DataContext.Empty;
object view = GetView(viewMapping, context);
Action<IViewManager, IViewModel, object, IDataContext> handler = ViewCreated;
if (handler != null)
handler(this, null, view, context);
tcs.SetResult(view);
});
return tcs.Task;
}
/// <summary>
/// Displays the content located at the specified <see cref="IViewMappingItem" />.
/// </summary>
/// <param name="source">
/// The <c>IViewPageMappingItem</c> of the content to display.
/// </param>
/// <param name="parameter">
/// A <see cref="T:System.Object" /> that contains data to be used for processing during
/// navigation.
/// </param>
/// <param name="dataContext">
/// The specified <see cref="IDataContext" />.
/// </param>
/// <returns>
/// <c>true</c> if the content was successfully displayed; otherwise, <c>false</c>.
/// </returns>
public bool Navigate(IViewMappingItem source, object parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
if (dataContext == null)
dataContext = DataContext.Empty;
var result = Navigate(source.ViewType, parameter, dataContext.GetData(NavigationConstants.ViewModel));
if (result)
ClearNavigationStackIfNeed(dataContext);
return result;
}
public virtual bool Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
Should.NotBeNull(source, nameof(source));
if (_rootPage == null)
return false;
if (dataContext == null)
dataContext = DataContext.Empty;
dataContext.TryGetData(NavigationProviderConstants.BringToFront, out _bringToFront);
if (!RaiseNavigating(new NavigatingCancelEventArgs(source, _bringToFront ? NavigationMode.Refresh : NavigationMode.New, parameter, true, false)))
return false;
var viewModel = dataContext.GetData(NavigationConstants.ViewModel);
bool animated;
if (dataContext.TryGetData(NavigationConstants.UseAnimations, out animated))
{
if (viewModel != null)
viewModel.Settings.State.AddOrUpdate(NavigationConstants.UseAnimations, animated);
}
else
animated = UseAnimations;
Page page = null;
if (_bringToFront && viewModel != null)
{
var navigation = _rootPage.Navigation;
if (navigation != null)
{
for (int i = 0; i < navigation.NavigationStack.Count; i++)
{
var p = navigation.NavigationStack[i];
if (p.BindingContext == viewModel)
{
page = p;
navigation.RemovePage(p);
dataContext.AddOrUpdate(NavigationProviderConstants.InvalidateCache, true);
break;
}
}
}
}
if (page == null)
{
if (viewModel == null)
page = (Page)ServiceProvider.Get<IViewManager>().GetViewAsync(source, dataContext).Result;
else
page = (Page)ViewManager.GetOrCreateView(viewModel, null, dataContext);
}
page.SetNavigationParameter(parameter);
ClearNavigationStackIfNeed(dataContext, page, _rootPage.PushAsync(page, animated));
return true;
}
protected virtual void StartActivity(Context context, Intent intent, IViewMappingItem source, IDataContext dataContext)
{
var activity = context.GetActivity();
Action<Context, Intent, IViewMappingItem, IDataContext> startAction = null;
if (activity != null)
startAction = activity.GetBindingMemberValue(AttachedMembers.Activity.StartActivityDelegate);
if (startAction == null)
context.StartActivity(intent);
else
startAction(context, intent, source, dataContext);
}
protected virtual object CreateView(IViewMappingItem viewMapping, object parameter)
{
return ServiceProvider.Get<IViewManager>().GetViewAsync(viewMapping, parameter as IDataContext).Result;
}
bool INavigationService.Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
if (Navigate == null)
return false;
return Navigate(source, parameter, dataContext);
}
private bool NavigateInternal(IViewMappingItem source, object parameter)
{
if (_useUrlNavigation)
{
if (parameter == null)
return _window.Navigate(source.Uri);
return _window.Navigate(source.Uri, parameter);
}
if (parameter == null)
return _window.Navigate(CreateView(source, null));
return _window.Navigate(CreateView(source, parameter), parameter);
}
public Task<object> GetViewAsync(IViewMappingItem viewMapping, IDataContext context = null)
{
throw new NotImplementedException();
}
/// <summary>
/// Displays the content located at the specified <see cref="IViewMappingItem" />.
/// </summary>
/// <param name="source">
/// The <c>IViewPageMappingItem</c> of the content to display.
/// </param>
/// <param name="parameter">
/// A <see cref="T:System.Object" /> that contains data to be used for processing during
/// navigation.
/// </param>
/// <param name="dataContext">
/// The specified <see cref="IDataContext" />.
/// </param>
/// <returns>
/// <c>true</c> if the content was successfully displayed; otherwise, <c>false</c>.
/// </returns>
public bool Navigate(IViewMappingItem source, string parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
var result = NavigateInternal(source, parameter);
if (result)
ClearNavigationStackIfNeed(dataContext);
return result;
}
/// <summary>
/// Displays the content located at the specified <see cref="IViewMappingItem" />.
/// </summary>
/// <param name="source">
/// The <c>IViewPageMappingItem</c> of the content to display.
/// </param>
/// <param name="parameter">
/// A <see cref="T:System.Object" /> that contains data to be used for processing during
/// navigation.
/// </param>
/// <param name="dataContext">
/// The specified <see cref="IDataContext" />.
/// </param>
/// <returns>
/// <c>true</c> if the content was successfully displayed; otherwise, <c>false</c>.
/// </returns>
public bool Navigate(IViewMappingItem source, object parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
if (_rootPage == null)
return false;
if (!RaiseNavigating(new NavigatingCancelEventArgs(source, NavigationMode.New, parameter)))
return false;
if (dataContext == null)
dataContext = DataContext.Empty;
var viewModel = dataContext.GetData(NavigationConstants.ViewModel);
bool animated;
if (dataContext.TryGetData(NavigationConstants.UseAnimations, out animated))
{
if (viewModel != null)
viewModel.Settings.State.AddOrUpdate(NavigationConstants.UseAnimations, animated);
}
else
animated = UseAnimations;
Page page;
if (viewModel == null)
page = (Page)ServiceProvider.IocContainer.Get(source.ViewType);
else
page = (Page)ViewManager.GetOrCreateView(viewModel, null, dataContext);
page.SetNavigationParameter(parameter);
ClearNavigationStackIfNeed(dataContext, page, _rootPage.PushAsync(page, animated));
return true;
}
/// <summary>
/// Displays the content located at the specified <see cref="IViewMappingItem" />.
/// </summary>
/// <param name="source">
/// The <c>IViewPageMappingItem</c> of the content to display.
/// </param>
/// <param name="parameter">
/// A <see cref="T:System.Object" /> that contains data to be used for processing during
/// navigation.
/// </param>
/// <param name="dataContext">
/// The specified <see cref="IDataContext" />.
/// </param>
/// <returns>
/// <c>true</c> if the content was successfully displayed; otherwise, <c>false</c>.
/// </returns>
public virtual bool Navigate(IViewMappingItem source, object parameter, IDataContext dataContext)
{
Should.NotBeNull(source, "source");
EnsureInitialized();
if (!RaiseNavigating(new NavigatingCancelEventArgs(source, NavigationMode.New, parameter)))
return false;
if (dataContext == null)
dataContext = DataContext.Empty;
IViewModel viewModel = dataContext.GetData(NavigationConstants.ViewModel);
UIViewController viewController;
if (viewModel == null)
viewController = (UIViewController)ServiceProvider.IocContainer.Get(source.ViewType);
else
viewController = (UIViewController)ViewManager.GetOrCreateView(viewModel, null, dataContext);
viewController.SetNavigationParameter(parameter);
bool shouldNavigate = true;
if (_window != null)
{
var controller = _window.RootViewController as UINavigationController;
if (controller == null)
{
shouldNavigate = false;
controller = new MvvmNavigationController(viewController);
_window.RootViewController = controller;
}
InitializeNavigationController(controller);
}
if (shouldNavigate)
{
bool animated;
if (dataContext.TryGetData(NavigationConstants.UseAnimations, out animated))
{
if (viewModel != null)
viewModel.Settings.State.AddOrUpdate(NavigationConstants.UseAnimations, animated);
}
else
animated = UseAnimations;
if (!ClearNavigationStackIfNeed(viewController, dataContext, animated))
NavigationController.PushViewController(viewController, animated);
}
var view = viewController as IViewControllerView;
if (view == null || view.Mediator.IsAppeared)
RaiseNavigated(viewController, NavigationMode.New, parameter);
else
view.Mediator.ViewDidAppearHandler += OnViewDidAppearHandlerNew;
return true;
}
private void AddMapping(IViewMappingItem mappingItem, bool throwOnError, bool rewrite = false)
{
List<IViewMappingItem> list;
if (!_viewTypeToMapping.TryGetValue(mappingItem.ViewType, out list))
{
list = new List<IViewMappingItem>();
_viewTypeToMapping[mappingItem.ViewType] = list;
}
list.Add(mappingItem);
Dictionary<string, IViewMappingItem> value;
if (!_viewModelToMapping.TryGetValue(mappingItem.ViewModelType, out value))
{
value = new Dictionary<string, IViewMappingItem>();
_viewModelToMapping[mappingItem.ViewModelType] = value;
}
IViewMappingItem item;
string name = mappingItem.Name ?? string.Empty;
if (value.TryGetValue(name, out item))
{
if (throwOnError)
throw ExceptionManager.DuplicateViewMapping(item.ViewType, item.ViewModelType, item.Name);
if (!rewrite)
return;
}
value[name] = mappingItem;
if (Tracer.TraceInformation)
Tracer.Info("The view mapping to view model was created: ({0} ---> {1}), name: {2}",
mappingItem.ViewModelType, mappingItem.ViewType, mappingItem.Name);
}
