public WorkflowDesigner()
{
// create our perf trace provider first
this.perfEventProvider = new DesignerPerfEventProvider();
this.idManager = new ViewStateIdManager();
this.context = new EditingContext();
this.ModelSearchService = new ModelSearchServiceImpl(this);
this.context.Items.SetValue(new ReadOnlyState {
IsReadOnly = false
});
this.view = new Grid();
this.view.Focusable = false;
//add the resource dictionary to application resource so every component could reference it
if (Application.Current == null)
{
//create an application if it doesn't exist, make sure it will not shutdown after windows being shut down
Application app = new Application();
app.ShutdownMode = ShutdownMode.OnExplicitShutdown;
}
Fx.Assert(Application.Current != null, "Application and resources must be there");
Application.Current.Resources.MergedDictionaries.Add(WorkflowDesignerColors.FontAndColorResources);
Application.Current.Resources.MergedDictionaries.Add(WorkflowDesignerIcons.IconResourceDictionary);
AttachedPropertiesService propertiesService = new AttachedPropertiesService();
this.context.Services.Publish(typeof(AttachedPropertiesService), propertiesService);
undoEngine = new UndoEngine(context);
this.context.Services.Publish(typeof(UndoEngine), undoEngine);
undoEngine.UndoCompleted += new EventHandler <UndoUnitEventArgs>(OnUndoCompleted);
this.context.Services.Publish <ValidationService>(this.ValidationService);
this.context.Services.Publish <ObjectReferenceService>(this.ObjectReferenceService);
this.context.Services.Publish <DesignerPerfEventProvider>(this.perfEventProvider);
this.context.Services.Publish <FeatureManager>(new FeatureManager(this.context));
this.context.Services.Publish <DesignerConfigurationService>(new DesignerConfigurationService());
if (!LocalAppContextSwitches.UseLegacyAccessibilityFeatures)
{
// Keeps track of a dictionary of session objects on current Workflow Designer.
// The initial purpose is to pass the focused VisualBasicEditor from NetFx to VS.
this.context.Services.Publish <Dictionary <string, object> >(new Dictionary <string, object>());
}
this.context.Services.Subscribe <ICommandService>((s) =>
{
const string addinTypeName = "Microsoft.VisualStudio.Activities.AddIn.WorkflowDesignerAddIn";
if (s != null && s.GetType().FullName.Equals(addinTypeName))
{
DesignerConfigurationService service = this.context.Services.GetService <DesignerConfigurationService>();
if (service != null)
{
service.WorkflowDesignerHostId = WorkflowDesignerHostId.Dev10;
}
}
});
this.context.Services.Subscribe <IVSSqmService>((service) =>
{
const string serviceTypeName = "Microsoft.VisualStudio.Activities.AddIn.VSSqmService";
if (service != null && service.GetType().FullName.Equals(serviceTypeName))
{
DesignerConfigurationService configurationService = this.context.Services.GetService <DesignerConfigurationService>();
if (configurationService != null)
{
configurationService.WorkflowDesignerHostId = WorkflowDesignerHostId.Dev11;
}
}
});
this.Context.Items.Subscribe <ErrorItem>(delegate(ErrorItem errorItem)
{
ErrorView errorView = new ErrorView();
errorView.Message = errorItem.Message;
errorView.Details = errorItem.Details;
errorView.Context = this.Context;
// Clear views
this.view.Children.Clear();
this.view.Children.Add(errorView);
if (this.outlineView != null)
{
this.outlineView.Children.Clear();
}
}
);
this.context.Items.Subscribe <ReadOnlyState>(new SubscribeContextCallback <ReadOnlyState>(OnReadonlyStateChanged));
this.context.Services.Subscribe <IXamlLoadErrorService>(s => this.xamlLoadErrorService = s);
this.PreviewLoad += NamespaceSettingsHandler.PreviewLoadRoot;
this.view.Loaded += (s, e) =>
{
//when view is loaded, check if user did provide his own WindowHelperService - if not, provide a default one
if (!this.context.Services.Contains <WindowHelperService>())
{
IntPtr hWND = IntPtr.Zero;
Window ownerWindow = Window.GetWindow(this.view);
if (null != ownerWindow)
{
WindowInteropHelper helper = new WindowInteropHelper(ownerWindow);
hWND = helper.Handle;
}
this.Context.Services.Publish <WindowHelperService>(new WindowHelperService(hWND));
}
WindowHelperService whs = this.context.Services.GetService <WindowHelperService>();
whs.View = this.view;
//check if workflow command extension item is available - if not, provide default one
if (!this.context.Items.Contains <WorkflowCommandExtensionItem>())
{
WorkflowCommandExtensionItem item = new WorkflowCommandExtensionItem(new DefaultCommandExtensionCallback());
this.context.Items.SetValue(item);
}
ComponentDispatcher.EnterThreadModal += new EventHandler(ComponentDispatcher_EnterThreadModal);
ComponentDispatcher.LeaveThreadModal += new EventHandler(ComponentDispatcher_LeaveThreadModal);
};
this.view.Unloaded += (s, e) =>
{
ComponentDispatcher.EnterThreadModal -= new EventHandler(ComponentDispatcher_EnterThreadModal);
ComponentDispatcher.LeaveThreadModal -= new EventHandler(ComponentDispatcher_LeaveThreadModal);
};
this.view.IsKeyboardFocusWithinChanged += (s, e) =>
{
// The ModelTreeManager is null when there is an active ErrorItem.
// We have nothing to write to text in this case.
if (this.modelTreeManager != null && (bool)e.NewValue == false)
{
if ((FocusManager.GetFocusedElement(this.view) as TextBox) != null)
{
FocusManager.SetFocusedElement(this.view, null);
this.NotifyModelChanged();
}
}
};
}
public WorkflowDesigner()
{
// create our perf trace provider first
this.perfEventProvider = new DesignerPerfEventProvider();
this.idManager = new ViewStateIdManager();
this.context = new EditingContext();
this.ModelSearchService = new ModelSearchServiceImpl(this);
this.context.Items.SetValue(new ReadOnlyState { IsReadOnly = false });
this.view = new Grid();
this.view.Focusable = false;
//add the resource dictionary to application resource so every component could reference it
if (Application.Current == null)
{
//create an application if it doesn't exist, make sure it will not shutdown after windows being shut down
Application app = new Application();
app.ShutdownMode = ShutdownMode.OnExplicitShutdown;
}
Fx.Assert(Application.Current != null, "Application and resources must be there");
Application.Current.Resources.MergedDictionaries.Add(WorkflowDesignerColors.FontAndColorResources);
Application.Current.Resources.MergedDictionaries.Add(WorkflowDesignerIcons.IconResourceDictionary);
AttachedPropertiesService propertiesService = new AttachedPropertiesService();
this.context.Services.Publish(typeof(AttachedPropertiesService), propertiesService);
undoEngine = new UndoEngine(context);
this.context.Services.Publish(typeof(UndoEngine), undoEngine);
undoEngine.UndoCompleted += new EventHandler<UndoUnitEventArgs>(OnUndoCompleted);
this.context.Services.Publish<ValidationService>(this.ValidationService);
this.context.Services.Publish<ObjectReferenceService>(this.ObjectReferenceService);
this.context.Services.Publish<DesignerPerfEventProvider>(this.perfEventProvider);
this.context.Services.Publish<FeatureManager>(new FeatureManager(this.context));
this.context.Services.Publish<DesignerConfigurationService>(new DesignerConfigurationService());
this.context.Services.Subscribe<ICommandService>((s) =>
{
const string addinTypeName = "Microsoft.VisualStudio.Activities.AddIn.WorkflowDesignerAddIn";
if (s != null && s.GetType().FullName.Equals(addinTypeName))
{
DesignerConfigurationService service = this.context.Services.GetService<DesignerConfigurationService>();
if (service != null)
{
service.WorkflowDesignerHostId = WorkflowDesignerHostId.Dev10;
}
}
});
this.context.Services.Subscribe<IVSSqmService>((service) =>
{
const string serviceTypeName = "Microsoft.VisualStudio.Activities.AddIn.VSSqmService";
if (service != null && service.GetType().FullName.Equals(serviceTypeName))
{
DesignerConfigurationService configurationService = this.context.Services.GetService<DesignerConfigurationService>();
if (configurationService != null)
{
configurationService.WorkflowDesignerHostId = WorkflowDesignerHostId.Dev11;
}
}
});
this.Context.Items.Subscribe<ErrorItem>(delegate(ErrorItem errorItem)
{
ErrorView errorView = new ErrorView();
errorView.Message = errorItem.Message;
errorView.Details = errorItem.Details;
errorView.Context = this.Context;
// Clear views
this.view.Children.Clear();
this.view.Children.Add(errorView);
if (this.outlineView != null)
{
this.outlineView.Children.Clear();
}
}
);
this.context.Items.Subscribe<ReadOnlyState>(new SubscribeContextCallback<ReadOnlyState>(OnReadonlyStateChanged));
this.context.Services.Subscribe<IXamlLoadErrorService>(s => this.xamlLoadErrorService = s);
this.PreviewLoad += NamespaceSettingsHandler.PreviewLoadRoot;
this.view.Loaded += (s, e) =>
{
//when view is loaded, check if user did provide his own WindowHelperService - if not, provide a default one
if (!this.context.Services.Contains<WindowHelperService>())
{
IntPtr hWND = IntPtr.Zero;
Window ownerWindow = Window.GetWindow(this.view);
if (null != ownerWindow)
{
WindowInteropHelper helper = new WindowInteropHelper(ownerWindow);
hWND = helper.Handle;
}
this.Context.Services.Publish<WindowHelperService>(new WindowHelperService(hWND));
}
WindowHelperService whs = this.context.Services.GetService<WindowHelperService>();
whs.View = this.view;
//check if workflow command extension item is available - if not, provide default one
if (!this.context.Items.Contains<WorkflowCommandExtensionItem>())
{
WorkflowCommandExtensionItem item = new WorkflowCommandExtensionItem(new DefaultCommandExtensionCallback());
this.context.Items.SetValue(item);
}
ComponentDispatcher.EnterThreadModal += new EventHandler(ComponentDispatcher_EnterThreadModal);
ComponentDispatcher.LeaveThreadModal += new EventHandler(ComponentDispatcher_LeaveThreadModal);
};
this.view.Unloaded += (s, e) =>
{
ComponentDispatcher.EnterThreadModal -= new EventHandler(ComponentDispatcher_EnterThreadModal);
ComponentDispatcher.LeaveThreadModal -= new EventHandler(ComponentDispatcher_LeaveThreadModal);
};
this.view.IsKeyboardFocusWithinChanged += (s, e) =>
{
// The ModelTreeManager is null when there is an active ErrorItem.
// We have nothing to write to text in this case.
if (this.modelTreeManager != null && (bool)e.NewValue == false)
{
if ((FocusManager.GetFocusedElement(this.view) as TextBox) != null)
{
FocusManager.SetFocusedElement(this.view, null);
this.NotifyModelChanged();
}
}
};
}
