public override void SetValue(object component, object value)
{
Activity activity = component as Activity;
if (activity != null)
{
ISite site = PropertyDescriptorUtils.GetSite(ServiceProvider, component);
if (site == null)
{
throw new Exception(SR.GetString(SR.General_MissingService, typeof(ISite).FullName));
}
IIdentifierCreationService identifierCreationService = site.GetService(typeof(IIdentifierCreationService)) as IIdentifierCreationService;
if (identifierCreationService == null)
{
throw new Exception(SR.GetString(SR.General_MissingService, typeof(IIdentifierCreationService).FullName));
}
string newID = value as string;
identifierCreationService.ValidateIdentifier(activity, newID);
DesignerHelpers.UpdateSiteName(activity, newID);
base.SetValue(component, value);
}
}
internal static object EditValue(ITypeDescriptorContext context)
{
object obj2 = null;
if (((context != null) && (context.PropertyDescriptor != null)) && (context.Instance != null))
{
BindUITypeEditor editor = new BindUITypeEditor();
obj2 = context.PropertyDescriptor.GetValue(context.Instance);
obj2 = editor.EditValue(context, context, obj2);
try
{
context.PropertyDescriptor.SetValue(context.Instance, obj2);
}
catch (Exception exception)
{
string message = SR.GetString("Error_CanNotBindProperty", new object[] { context.PropertyDescriptor.Name });
if (!string.IsNullOrEmpty(exception.Message))
{
message = message + "\n\n" + exception.Message;
}
DesignerHelpers.ShowError(context, message);
}
}
return(obj2);
}
private void OnMenuPrint(object sender, EventArgs e)
{
if (PrinterSettings.InstalledPrinters.Count < 1)
{
DesignerHelpers.ShowError(this.serviceProvider, DR.GetString("ThereIsNoPrinterInstalledErrorMessage", new object[0]));
}
else
{
PrintDocument printDocument = this.workflowView.PrintDocument;
PrintDialog dialog = new PrintDialog {
AllowPrintToFile = false,
Document = printDocument
};
try
{
if (DialogResult.OK == dialog.ShowDialog())
{
PrinterSettings printerSettings = printDocument.PrinterSettings;
PageSettings defaultPageSettings = printDocument.DefaultPageSettings;
printDocument.PrinterSettings = dialog.PrinterSettings;
printDocument.DefaultPageSettings = dialog.Document.DefaultPageSettings;
printDocument.Print();
printDocument.PrinterSettings = printerSettings;
printDocument.DefaultPageSettings = defaultPageSettings;
}
}
catch (Exception exception)
{
string message = DR.GetString("SelectedPrinterIsInvalidErrorMessage", new object[0]) + "\n" + exception.Message;
DesignerHelpers.ShowError(this.serviceProvider, message);
}
}
}
private void OnStatusDelete(object sender, EventArgs e)
{
MenuCommand command = (MenuCommand)sender;
command.Enabled = false;
IDesignerHost service = this.serviceProvider.GetService(typeof(IDesignerHost)) as IDesignerHost;
if (((service == null) || (service.RootComponent == null)) || !this.selectionService.GetComponentSelected(service.RootComponent))
{
ICollection selectedComponents = this.selectionService.GetSelectedComponents();
if (DesignerHelpers.AreComponentsRemovable(selectedComponents))
{
foreach (DictionaryEntry entry in Helpers.PairUpCommonParentActivities(Helpers.GetTopLevelActivities(selectedComponents)))
{
CompositeActivityDesigner designer = ActivityDesigner.GetDesigner(entry.Key as Activity) as CompositeActivityDesigner;
if ((designer != null) && !designer.CanRemoveActivities(new List <Activity>((Activity[])((ArrayList)entry.Value).ToArray(typeof(Activity))).AsReadOnly()))
{
command.Enabled = false;
return;
}
}
command.Enabled = true;
}
}
}
internal static object EditValue(ITypeDescriptorContext context)
{
object value = null;
if (context != null && context.PropertyDescriptor != null && context.Instance != null)
{
BindUITypeEditor bindTypeEditor = new BindUITypeEditor();
value = context.PropertyDescriptor.GetValue(context.Instance);
value = bindTypeEditor.EditValue(context, context, value);
try
{
context.PropertyDescriptor.SetValue(context.Instance, value);
}
catch (Exception e)
{
string message = SR.GetString(SR.Error_CanNotBindProperty, context.PropertyDescriptor.Name);
if (!String.IsNullOrEmpty(e.Message))
{
message += "\n\n" + e.Message;
}
DesignerHelpers.ShowError(context, message);
}
}
return(value);
}
private void InitiateDragDrop()
{
WorkflowView parentView = ParentView;
ISelectionService selectionService = (ISelectionService)GetService(typeof(ISelectionService));
IDesignerHost designerHost = (IDesignerHost)GetService(typeof(IDesignerHost));
if (selectionService == null || designerHost == null)
{
return;
}
// check if we are cutting root component
ICollection components = selectionService.GetSelectedComponents();
if (components == null || components.Count < 1 || selectionService.GetComponentSelected(designerHost.RootComponent) || !Helpers.AreAllActivities(components))
{
return;
}
DragDropEffects effects = DragDropEffects.None;
try
{
// get component serialization service
this.existingDraggedActivities.AddRange(Helpers.GetTopLevelActivities(components));
//IMPORTANT: FOR WITHIN DESIGNER COMPONENT MOVE WE REMOVE THE ACTIVITIES BEFORE WE ADD THEM WHICH IS IN
//ONDRAGDROP FUNCTION. ALTHOUGH THIS VIOLATES THE DODRAGDROP FUNCTION SIMANTICS, WE NEED TO DO THIS
//SO THAT WE CAN USE THE SAME IDS FOR THE ACTIVITIES
DragDropEffects allowedEffects = (DesignerHelpers.AreAssociatedDesignersMovable(this.existingDraggedActivities)) ? DragDropEffects.Move | DragDropEffects.Copy : DragDropEffects.Copy;
IDataObject dataObject = CompositeActivityDesigner.SerializeActivitiesToDataObject(ParentView, this.existingDraggedActivities.ToArray());
effects = parentView.DoDragDrop(dataObject, allowedEffects);
//
}
catch (Exception e)
{
DesignerHelpers.ShowError(ParentView, e.Message);
}
finally
{
//This means drag drop occurred across designer
if (effects == DragDropEffects.Move && this.existingDraggedActivities.Count > 0)
{
string transactionDescription = String.Empty;
if (this.existingDraggedActivities.Count > 1)
{
transactionDescription = SR.GetString(SR.MoveMultipleActivities, this.existingDraggedActivities.Count);
}
else
{
transactionDescription = SR.GetString(SR.MoveSingleActivity, this.existingDraggedActivities[0].GetType());
}
CompositeActivityDesigner.RemoveActivities(ParentView, this.existingDraggedActivities.AsReadOnly(), transactionDescription);
}
this.existingDraggedActivities.Clear();
}
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider serviceProvider, object value)
{
if (serviceProvider == null)
{
throw new ArgumentNullException("serviceProvider");
}
this.serviceProvider = serviceProvider;
object returnValue = value;
if (context != null && context.PropertyDescriptor is DynamicPropertyDescriptor)
{
try
{
using (ActivityBindForm bindDialog = new ActivityBindForm(this.serviceProvider, context))
{
if (DialogResult.OK == bindDialog.ShowDialog())
{
//Now that OK has been pressed in the dialog we need to create members if necessary
if (bindDialog.CreateNew)
{
//Emit the field / property as required
if (bindDialog.CreateNewProperty)
{
List <CustomProperty> properties = CustomActivityDesignerHelper.GetCustomProperties(context);
if (properties != null)
{
properties.Add(CustomProperty.CreateCustomProperty(this.serviceProvider, bindDialog.NewMemberName, context.PropertyDescriptor, context.Instance));
CustomActivityDesignerHelper.SetCustomProperties(properties, context);
}
}
else
{
ActivityBindPropertyDescriptor.CreateField(context, bindDialog.Binding, true);
}
}
returnValue = bindDialog.Binding;
}
}
}
catch (Exception e)
{
string message = SR.GetString(SR.Error_CanNotBindProperty, context.PropertyDescriptor.Name);
if (!String.IsNullOrEmpty(e.Message))
{
message += "\n\n" + e.Message;
}
DesignerHelpers.ShowError(context, message);
}
}
else
{
DesignerHelpers.ShowError(this.serviceProvider, SR.GetString(SR.Error_MultipleSelectNotSupportedForBindAndPromote));
}
return(returnValue);
}
protected override void OnActivate(ActivityDesigner designer)
{
if ((designer != null) && (designer.DesignerActions.Count > 0))
{
Rectangle bounds = this.GetBounds(designer, false);
Point location = designer.ParentView.LogicalPointToScreen(new Point(bounds.Left, bounds.Bottom));
DesignerHelpers.ShowDesignerVerbs(designer, location, DesignerHelpers.GetDesignerActionVerbs(designer, designer.DesignerActions));
}
}
private void UpdateDesignerSize(Point point, ActivityDesigner designerToSize, DesignerEdges sizingEdge)
{
if (base.ParentView == null)
{
throw new InvalidOperationException(DR.GetString("WorkflowViewNull", new object[0]));
}
Rectangle empty = Rectangle.Empty;
if (designerToSize.ParentDesigner != null)
{
empty = designerToSize.ParentDesigner.Bounds;
Size selectionSize = WorkflowTheme.CurrentTheme.AmbientTheme.SelectionSize;
empty.Inflate(-2 * selectionSize.Width, -2 * selectionSize.Height);
}
Rectangle bounds = designerToSize.Bounds;
if ((sizingEdge & DesignerEdges.Left) > DesignerEdges.None)
{
int x = point.X;
if (!empty.IsEmpty)
{
x = Math.Max(x, empty.X);
}
x = DesignerHelpers.SnapToGrid(new Point(x, 0)).X;
bounds.Width += bounds.Left - x;
int num2 = (bounds.Width < designerToSize.MinimumSize.Width) ? (bounds.Width - designerToSize.MinimumSize.Width) : 0;
bounds.X = x + num2;
}
if ((sizingEdge & DesignerEdges.Top) > DesignerEdges.None)
{
int y = point.Y;
if (!empty.IsEmpty)
{
y = Math.Max(y, empty.Y);
}
y = DesignerHelpers.SnapToGrid(new Point(0, y)).Y;
bounds.Height += bounds.Top - y;
int num4 = (bounds.Height < designerToSize.MinimumSize.Height) ? (bounds.Height - designerToSize.MinimumSize.Height) : 0;
bounds.Y = y + num4;
}
if ((sizingEdge & DesignerEdges.Right) > DesignerEdges.None)
{
bounds.Width += point.X - bounds.Right;
}
if ((sizingEdge & DesignerEdges.Bottom) > DesignerEdges.None)
{
bounds.Height += point.Y - bounds.Bottom;
}
bounds.Width = Math.Max(bounds.Width, designerToSize.MinimumSize.Width);
bounds.Height = Math.Max(bounds.Height, designerToSize.MinimumSize.Height);
if (!empty.IsEmpty)
{
bounds = Rectangle.Intersect(bounds, empty);
}
((IWorkflowDesignerMessageSink)designerToSize).OnResizing(sizingEdge, bounds);
}
protected override void OnBeginPrint(PrintEventArgs printArgs)
{
base.OnBeginPrint(printArgs);
this.currentPrintablePage = Point.Empty;
bool flag = (base.PrinterSettings.IsValid && (PrinterSettings.InstalledPrinters.Count > 0)) && new ArrayList(PrinterSettings.InstalledPrinters).Contains(base.PrinterSettings.PrinterName);
if (!flag)
{
DesignerHelpers.ShowError(this.workflowView, DR.GetString("SelectedPrinterIsInvalidErrorMessage", new object[0]));
}
printArgs.Cancel = !flag || (this.workflowView.RootDesigner == null);
}
protected override void OnThemeChange(ActivityDesignerTheme newTheme)
{
base.OnThemeChange(newTheme);
if (WorkflowTheme.CurrentTheme.AmbientTheme.ShowGrid)
{
foreach (ActivityDesigner designer in this.ContainedDesigners)
{
designer.Location = DesignerHelpers.SnapToGrid(designer.Location);
}
base.PerformLayout();
}
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider serviceProvider, object value)
{
if (serviceProvider == null)
{
throw new ArgumentNullException("serviceProvider");
}
this.serviceProvider = serviceProvider;
object obj2 = value;
if ((context != null) && (context.PropertyDescriptor is DynamicPropertyDescriptor))
{
try
{
using (ActivityBindForm form = new ActivityBindForm(this.serviceProvider, context))
{
if (DialogResult.OK != form.ShowDialog())
{
return(obj2);
}
if (form.CreateNew)
{
if (form.CreateNewProperty)
{
List <CustomProperty> customProperties = CustomActivityDesignerHelper.GetCustomProperties(context);
if (customProperties != null)
{
customProperties.Add(CustomProperty.CreateCustomProperty(this.serviceProvider, form.NewMemberName, context.PropertyDescriptor, context.Instance));
CustomActivityDesignerHelper.SetCustomProperties(customProperties, context);
}
}
else
{
ActivityBindPropertyDescriptor.CreateField(context, form.Binding, true);
}
}
return(form.Binding);
}
}
catch (Exception exception)
{
string message = SR.GetString("Error_CanNotBindProperty", new object[] { context.PropertyDescriptor.Name });
if (!string.IsNullOrEmpty(exception.Message))
{
message = message + "\n\n" + exception.Message;
}
DesignerHelpers.ShowError(context, message);
}
return(obj2);
}
DesignerHelpers.ShowError(this.serviceProvider, SR.GetString("Error_MultipleSelectNotSupportedForBindAndPromote"));
return(obj2);
}
internal bool IsValidDropContext(HitTestInfo dropLocation)
{
if (this.draggedActivities.Count == 0)
{
return(false);
}
if (dropLocation == null || dropLocation.AssociatedDesigner == null)
{
return(false);
}
CompositeActivityDesigner compositeDesigner = dropLocation.AssociatedDesigner as CompositeActivityDesigner;
if (compositeDesigner == null)
{
return(false);
}
if (!compositeDesigner.IsEditable || !compositeDesigner.CanInsertActivities(dropLocation, new List <Activity>(this.draggedActivities).AsReadOnly()))
{
return(false);
}
if (!this.wasCtrlKeyPressed && this.existingDraggedActivities.Count > 0)
{
//We are trying to move the actvities with designer
if (!DesignerHelpers.AreAssociatedDesignersMovable(this.draggedActivities))
{
return(false);
}
if (IsRecursiveDropOperation(dropLocation.AssociatedDesigner))
{
return(false);
}
IDictionary commonParentActivities = Helpers.PairUpCommonParentActivities(this.draggedActivities);
foreach (DictionaryEntry entry in commonParentActivities)
{
CompositeActivityDesigner compositeActivityDesigner = ActivityDesigner.GetDesigner(entry.Key as Activity) as CompositeActivityDesigner;
Activity[] activitiesToMove = (Activity[])((ArrayList)entry.Value).ToArray(typeof(Activity));
if (compositeActivityDesigner != null && !compositeActivityDesigner.CanMoveActivities(dropLocation, new List <Activity>(activitiesToMove).AsReadOnly()))
{
return(false);
}
}
}
return(true);
}
private void OnMenuPageSetup(object sender, EventArgs e)
{
if (PrinterSettings.InstalledPrinters.Count < 1)
{
DesignerHelpers.ShowError(this.serviceProvider, DR.GetString("ThereIsNoPrinterInstalledErrorMessage", new object[0]));
}
else
{
WorkflowPageSetupDialog dialog = new WorkflowPageSetupDialog(this.serviceProvider);
if (DialogResult.OK == dialog.ShowDialog())
{
this.workflowView.PerformLayout(false);
}
}
}
internal static Point[] GetDesignerLocations(Point startPoint, Point endPoint, ICollection <Activity> activitiesToMove)
{
List <Point> list = new List <Point>();
foreach (Activity activity in activitiesToMove)
{
Point location = endPoint;
ActivityDesigner designer = ActivityDesigner.GetDesigner(activity);
if ((designer != null) && !startPoint.IsEmpty)
{
Size size = new Size(endPoint.X - startPoint.X, endPoint.Y - startPoint.Y);
location = new Point(designer.Location.X + size.Width, designer.Location.Y + size.Height);
}
location = DesignerHelpers.SnapToGrid(location);
list.Add(location);
}
return(list.ToArray());
}
protected override void SaveViewState(BinaryWriter writer)
{
base.SaveViewState(writer);
if (this.containedDesignSurface != null)
{
writer.Write(true);
IDesignerHost service = this.containedDesignSurface.GetService(typeof(IDesignerHost)) as IDesignerHost;
if (service == null)
{
throw new Exception(SR.GetString("General_MissingService", new object[] { typeof(IDesignerHost).FullName }));
}
DesignerHelpers.SerializeDesignerStates(service, writer);
}
else
{
writer.Write(false);
}
}
protected override void OnBeginPrint(PrintEventArgs printArgs)
{
base.OnBeginPrint(printArgs);
this.currentPrintablePage = Point.Empty;
//Validate the printer
bool validPrinter = (PrinterSettings.IsValid &&
PrinterSettings.InstalledPrinters.Count > 0 &&
new ArrayList(PrinterSettings.InstalledPrinters).Contains(PrinterSettings.PrinterName));
if (!validPrinter)
{
DesignerHelpers.ShowError(this.workflowView, DR.GetString(DR.SelectedPrinterIsInvalidErrorMessage));
}
printArgs.Cancel = (!validPrinter || this.workflowView.RootDesigner == null);
}
private void InitiateDragDrop()
{
WorkflowView parentView = base.ParentView;
ISelectionService service = (ISelectionService)base.GetService(typeof(ISelectionService));
IDesignerHost host = (IDesignerHost)base.GetService(typeof(IDesignerHost));
if ((service != null) && (host != null))
{
ICollection selectedComponents = service.GetSelectedComponents();
if (((selectedComponents != null) && (selectedComponents.Count >= 1)) && (!service.GetComponentSelected(host.RootComponent) && Helpers.AreAllActivities(selectedComponents)))
{
DragDropEffects none = DragDropEffects.None;
try
{
this.existingDraggedActivities.AddRange(Helpers.GetTopLevelActivities(selectedComponents));
DragDropEffects allowedEffects = DesignerHelpers.AreAssociatedDesignersMovable(this.existingDraggedActivities) ? (DragDropEffects.Move | DragDropEffects.Copy) : DragDropEffects.Copy;
IDataObject data = CompositeActivityDesigner.SerializeActivitiesToDataObject(base.ParentView, this.existingDraggedActivities.ToArray());
none = parentView.DoDragDrop(data, allowedEffects);
}
catch (Exception exception)
{
DesignerHelpers.ShowError(base.ParentView, exception.Message);
}
finally
{
if ((none == DragDropEffects.Move) && (this.existingDraggedActivities.Count > 0))
{
string transactionDescription = string.Empty;
if (this.existingDraggedActivities.Count > 1)
{
transactionDescription = SR.GetString("MoveMultipleActivities", new object[] { this.existingDraggedActivities.Count });
}
else
{
transactionDescription = SR.GetString("MoveSingleActivity", new object[] { this.existingDraggedActivities[0].GetType() });
}
CompositeActivityDesigner.RemoveActivities(base.ParentView, this.existingDraggedActivities.AsReadOnly(), transactionDescription);
}
this.existingDraggedActivities.Clear();
}
}
}
}
internal bool IsValidDropContext(System.Workflow.ComponentModel.Design.HitTestInfo dropLocation)
{
if (this.draggedActivities.Count == 0)
{
return(false);
}
if ((dropLocation == null) || (dropLocation.AssociatedDesigner == null))
{
return(false);
}
CompositeActivityDesigner associatedDesigner = dropLocation.AssociatedDesigner as CompositeActivityDesigner;
if (associatedDesigner == null)
{
return(false);
}
if (!associatedDesigner.IsEditable || !associatedDesigner.CanInsertActivities(dropLocation, new List <Activity>(this.draggedActivities).AsReadOnly()))
{
return(false);
}
if (!this.wasCtrlKeyPressed && (this.existingDraggedActivities.Count > 0))
{
if (!DesignerHelpers.AreAssociatedDesignersMovable(this.draggedActivities))
{
return(false);
}
if (this.IsRecursiveDropOperation(dropLocation.AssociatedDesigner))
{
return(false);
}
foreach (DictionaryEntry entry in Helpers.PairUpCommonParentActivities(this.draggedActivities))
{
CompositeActivityDesigner designer = ActivityDesigner.GetDesigner(entry.Key as Activity) as CompositeActivityDesigner;
Activity[] collection = (Activity[])((ArrayList)entry.Value).ToArray(typeof(Activity));
if ((designer != null) && !designer.CanMoveActivities(dropLocation, new List <Activity>(collection).AsReadOnly()))
{
return(false);
}
}
}
return(true);
}
protected override void LoadViewState(BinaryReader reader)
{
base.LoadViewState(reader);
if (reader.ReadBoolean())
{
if (this.containedDesignSurface == null)
{
this.containedRootDesigner = this.LoadHostedWorkflow();
}
if (this.containedDesignSurface != null)
{
IDesignerHost service = this.containedDesignSurface.GetService(typeof(IDesignerHost)) as IDesignerHost;
if (service == null)
{
throw new Exception(SR.GetString("General_MissingService", new object[] { typeof(IDesignerHost).FullName }));
}
DesignerHelpers.DeserializeDesignerStates(service, reader);
}
}
}
private void OnRefreshDesignerActions(object sender, EventArgs e)
{
//NOTE: Make sure that we dont invalidate the workflow here. Workflow will be invalidated when'
//the designer actions are refreshed on idle thread. Putting invalidation logic here causes the validation
//to go haywire as before the idle message comes in we start getting to DesignerActions thru the paiting
//logic to show smart tags. This causes problems and ConfigErrors appear everywhere on designer intermittently
//PROBLEM: ConfigErrors appearing on the entire design surface
//This is due to a race condition between the validation triggered during painting
//logic and validation triggered when we try to access the DesignerActions from RefreshTask handler
//In the validation logic we try to get to the types while doing so we Refresh the code compile unit
//in typesystem which in turn triggers CodeDomLoader.Refresh. In this we remove types, call refresh handler
//and add new types. While doing this after the remove types but before addtypes, call is made to the drawing
//logic in which we try to grab the designer actions which triggers another set of validations hence now we
//always call UpdateWindow after invalidatewindow so that the validation will always get triggered on painting thread.
//NOTE: PLEASE DO NOT CHANGE SEQUENCE IN WHICH THE FOLLOWING HANDLERS ARE ADDED
//THE PROBLEM CAN BE ALSO FIXED BY TRIGGERING VALIDATION IN RefreshDesignerActions ITSELF
//FOR NOW THE REFRESH FIX WILL CAUSE MINIMAL IMPACT IN THE LIGHT OF M3
WorkflowView workflowView = this.serviceProvider.GetService(typeof(WorkflowView)) as WorkflowView;
if (this.refreshDesignerActionsHandler != null)
{
if (workflowView != null)
{
workflowView.Idle -= this.refreshDesignerActionsHandler;
}
this.refreshDesignerActionsHandler = null;
}
DesignerHelpers.RefreshDesignerActions(this.serviceProvider);
IPropertyValueUIService propertyValueService = this.serviceProvider.GetService(typeof(IPropertyValueUIService)) as IPropertyValueUIService;
if (propertyValueService != null)
{
propertyValueService.NotifyPropertyValueUIItemsChanged();
}
RefreshTasks();
}
public override void SetValue(object component, object value)
{
Activity activity = component as Activity;
if (activity != null)
{
IIdentifierCreationService service = activity.Site.GetService(typeof(IIdentifierCreationService)) as IIdentifierCreationService;
if (service == null)
{
throw new Exception(SR.GetString("General_MissingService", new object[] { typeof(IIdentifierCreationService).FullName }));
}
string identifier = value as string;
service.ValidateIdentifier(activity, identifier);
bool ignoreCase = CompilerHelpers.GetSupportedLanguage(activity.Site) == SupportedLanguages.VB;
Type dataSourceClass = Helpers.GetDataSourceClass(Helpers.GetRootActivity(activity), activity.Site);
if ((dataSourceClass != null) && (ActivityBindPropertyDescriptor.FindMatchingMember(identifier, dataSourceClass, ignoreCase) != null))
{
throw new ArgumentException(SR.GetString("Error_ActivityNameExist", new object[] { identifier }));
}
IMemberCreationService service2 = activity.Site.GetService(typeof(IMemberCreationService)) as IMemberCreationService;
if (service2 == null)
{
throw new InvalidOperationException(SR.GetString("General_MissingService", new object[] { typeof(IMemberCreationService).FullName }));
}
IDesignerHost host = activity.Site.GetService(typeof(IDesignerHost)) as IDesignerHost;
if (host == null)
{
throw new InvalidOperationException(SR.GetString("General_MissingService", new object[] { typeof(IDesignerHost).FullName }));
}
string newClassName = identifier;
int num = host.RootComponentClassName.LastIndexOf('.');
if (num > 0)
{
newClassName = host.RootComponentClassName.Substring(0, num + 1) + identifier;
}
service2.UpdateTypeName(((Activity)host.RootComponent).GetValue(WorkflowMarkupSerializer.XClassProperty) as string, newClassName);
((Activity)host.RootComponent).SetValue(WorkflowMarkupSerializer.XClassProperty, newClassName);
base.SetValue(component, value);
DesignerHelpers.UpdateSiteName((Activity)host.RootComponent, identifier);
}
}
private void OnRefreshDesignerActions(object sender, EventArgs e)
{
WorkflowView view = this.serviceProvider.GetService(typeof(WorkflowView)) as WorkflowView;
if (this.refreshDesignerActionsHandler != null)
{
if (view != null)
{
view.Idle -= this.refreshDesignerActionsHandler;
}
this.refreshDesignerActionsHandler = null;
}
DesignerHelpers.RefreshDesignerActions(this.serviceProvider);
IPropertyValueUIService service = this.serviceProvider.GetService(typeof(IPropertyValueUIService)) as IPropertyValueUIService;
if (service != null)
{
service.NotifyPropertyValueUIItemsChanged();
}
this.RefreshTasks();
}
internal static Point[] GetDesignerLocations(Point startPoint, Point endPoint, ICollection <Activity> activitiesToMove)
{
List <Point> locations = new List <Point>();
//We move all the designers
foreach (Activity activityToMove in activitiesToMove)
{
Point location = endPoint;
ActivityDesigner designerToMove = ActivityDesigner.GetDesigner(activityToMove);
if (designerToMove != null && !startPoint.IsEmpty)
{
Size delta = new Size(endPoint.X - startPoint.X, endPoint.Y - startPoint.Y);
location = new Point(designerToMove.Location.X + delta.Width, designerToMove.Location.Y + delta.Height);
}
location = DesignerHelpers.SnapToGrid(location);
locations.Add(location);
}
return(locations.ToArray());
}
private void OnMenuCut(object sender, EventArgs e)
{
IDesignerHost service = this.serviceProvider.GetService(typeof(IDesignerHost)) as IDesignerHost;
if ((service == null) || !this.selectionService.GetComponentSelected(service.RootComponent))
{
ICollection selectedComponents = this.selectionService.GetSelectedComponents();
if (Helpers.AreAllActivities(selectedComponents) && DesignerHelpers.AreAssociatedDesignersMovable(selectedComponents))
{
this.OnMenuCopy(sender, e);
string description = string.Empty;
if (selectedComponents.Count > 1)
{
description = SR.GetString("CutMultipleActivities", new object[] { selectedComponents.Count });
}
else
{
ArrayList list = new ArrayList(selectedComponents);
if (list.Count > 0)
{
description = SR.GetString("CutSingleActivity", new object[] { (list[0] as Activity).Name });
}
else
{
description = SR.GetString("CutActivity");
}
}
DesignerTransaction transaction = service.CreateTransaction(description);
try
{
this.OnMenuDelete(sender, e);
transaction.Commit();
}
catch
{
transaction.Cancel();
}
}
}
}
protected override void LoadViewState(BinaryReader reader)
{
base.LoadViewState(reader);
if (reader.ReadBoolean())
{
//verify the hosted surface and designer are loaded
if (this.containedDesignSurface == null)
{
this.containedRootDesigner = LoadHostedWorkflow();
}
if (this.containedDesignSurface != null)
{
IDesignerHost designerHost = this.containedDesignSurface.GetService(typeof(IDesignerHost)) as IDesignerHost;
if (designerHost == null)
{
throw new Exception(SR.GetString(SR.General_MissingService, typeof(IDesignerHost).FullName));
}
DesignerHelpers.DeserializeDesignerStates(designerHost, reader);
}
}
}
protected override void SaveViewState(BinaryWriter writer)
{
base.SaveViewState(writer);
if (this.containedDesignSurface != null)
{
// mark persistence for invoked workflow
writer.Write(true);
IDesignerHost designerHost = this.containedDesignSurface.GetService(typeof(IDesignerHost)) as IDesignerHost;
if (designerHost == null)
{
throw new Exception(SR.GetString(SR.General_MissingService, typeof(IDesignerHost).FullName));
}
DesignerHelpers.SerializeDesignerStates(designerHost, writer);
}
else
{
// no persistnce data for invoked workflow
writer.Write(false);
}
}
protected override bool OnDragDrop(DragEventArgs eventArgs)
{
//Invalidate the entire rectangle so that we draw active placement glyphs on connectors
WorkflowView parentView = ParentView;
parentView.InvalidateClientRectangle(Rectangle.Empty);
//By default we do not allow any drag drop operation
eventArgs.Effect = DragDropEffects.None;
DestroyDragFeedbackImages();
//Get the coordinates
Point clientPoint = parentView.PointToClient(new Point(eventArgs.X, eventArgs.Y));
Point logicalPoint = parentView.ScreenPointToLogical(new Point(eventArgs.X, eventArgs.Y));
//Now we check if the drag drop was in any valid area, if not then do not proceed further
if (!parentView.IsClientPointInActiveLayout(clientPoint))
{
if (this.dropTargetDesigner != null)
{
((IWorkflowDesignerMessageSink)this.dropTargetDesigner).OnDragLeave();
}
this.wasCtrlKeyPressed = false;
this.dropTargetDesigner = null;
this.draggedActivities.Clear();
return(false);
}
//Now we have a potential for successful drag drop, so construct drag event arguments with logical coordinates
this.wasCtrlKeyPressed = ((eventArgs.KeyState & 8) == 8);
ActivityDragEventArgs dragdropEventArgs = new ActivityDragEventArgs(eventArgs, this.dragInitiationPoint, logicalPoint, this.draggedActivities);
//Now check which designer is under the cursor, if we have the same designer as the old one
//If not then we set the new one as drop target and pump in messages
HitTestInfo hitTestInfo = MessageHitTestContext;
if (this.dropTargetDesigner != hitTestInfo.AssociatedDesigner)
{
if (this.dropTargetDesigner != null)
{
((IWorkflowDesignerMessageSink)this.dropTargetDesigner).OnDragLeave();
this.dropTargetDesigner = null;
}
if (hitTestInfo.AssociatedDesigner != null)
{
this.dropTargetDesigner = hitTestInfo.AssociatedDesigner;
if (this.dropTargetDesigner != null)
{
((IWorkflowDesignerMessageSink)this.dropTargetDesigner).OnDragEnter(dragdropEventArgs);
}
}
}
//We now have appropriate droptarget designer
try
{
if (this.dropTargetDesigner != null)
{
//We do not allow recursive drag and drop
if (!this.wasCtrlKeyPressed && IsRecursiveDropOperation(this.dropTargetDesigner) ||
(this.dropTargetDesigner is CompositeActivityDesigner && !((CompositeActivityDesigner)this.dropTargetDesigner).IsEditable))
{
((IWorkflowDesignerMessageSink)this.dropTargetDesigner).OnDragLeave();
dragdropEventArgs.Effect = DragDropEffects.None;
}
else
{
// IMPORTANT: Don't use draggedActivities variable, because components which are
// there may not be created using the assembly references added to ITypeResultionService
// this.workflowView.time the components will be created using the assembly references got added to the project
List <Activity> droppedActivities = new List <Activity>();
string transactionDescription = SR.GetString(SR.DragDropActivities);
//This means that we are trying to move activities so we use the same activities for drop
if (!this.wasCtrlKeyPressed && this.existingDraggedActivities.Count > 0)
{
droppedActivities.AddRange(this.existingDraggedActivities);
if (droppedActivities.Count > 1)
{
transactionDescription = SR.GetString(SR.MoveMultipleActivities, droppedActivities.Count);
}
else if (droppedActivities.Count == 1)
{
transactionDescription = SR.GetString(SR.MoveSingleActivity, droppedActivities[0].GetType());
}
}
else
{
droppedActivities.AddRange(CompositeActivityDesigner.DeserializeActivitiesFromDataObject(ParentView, eventArgs.Data, true));
if (droppedActivities.Count > 0)
{
transactionDescription = SR.GetString(SR.CreateActivityFromToolbox, droppedActivities[0].GetType());
}
}
//Now that we have what needs to be dropped, we start the actual drag and drop
IDesignerHost designerHost = GetService(typeof(IDesignerHost)) as IDesignerHost;
DesignerTransaction transaction = null;
if (droppedActivities.Count > 0)
{
transaction = designerHost.CreateTransaction(transactionDescription);
}
dragdropEventArgs = new ActivityDragEventArgs(eventArgs, this.dragInitiationPoint, logicalPoint, droppedActivities);
try
{
((IWorkflowDesignerMessageSink)this.dropTargetDesigner).OnDragDrop(dragdropEventArgs);
if (dragdropEventArgs.Effect == DragDropEffects.Move)
{
this.existingDraggedActivities.Clear();
}
if (transaction != null)
{
transaction.Commit();
}
}
catch (Exception e)
{
if (transaction != null)
{
transaction.Cancel();
}
throw e;
}
//We deserialize the designers and try to store the designer states
if (droppedActivities.Count > 0)
{
Stream componentStateStream = eventArgs.Data.GetData(DragDropManager.CF_DESIGNERSTATE) as Stream;
if (componentStateStream != null)
{
Helpers.DeserializeDesignersFromStream(droppedActivities, componentStateStream);
}
//Set the current selection
ISelectionService selectionService = (ISelectionService)GetService(typeof(ISelectionService));
if (selectionService != null)
{
selectionService.SetSelectedComponents(droppedActivities, SelectionTypes.Replace);
}
}
//Active the design surface
if (designerHost != null)
{
designerHost.Activate();
}
}
}
}
catch (Exception ex)
{
//We purposely consume application thrown exception which are result of user cancelling the action
//during dragdrop where we popup UI Wizards during drag drop. Ref: InvokeWebService
((IWorkflowDesignerMessageSink)this.dropTargetDesigner).OnDragLeave();
dragdropEventArgs.Effect = DragDropEffects.None;
string dragDropException = ex.Message;
if (ex.InnerException != null && !String.IsNullOrEmpty(ex.InnerException.Message))
{
dragDropException = ex.InnerException.Message;
}
string errorMessage = DR.GetString(DR.Error_FailedToDeserializeComponents);
errorMessage += "\r\n" + DR.GetString(DR.Error_Reason, dragDropException);
DesignerHelpers.ShowError(ParentView, errorMessage);
if (ex != CheckoutException.Canceled)
{
throw new Exception(errorMessage, ex);
}
}
finally
{
//Make sure that mouse over designer is set to null
this.wasCtrlKeyPressed = false;
this.draggedActivities.Clear();
this.dropTargetDesigner = null;
this.exceptionInDragDrop = false;
eventArgs.Effect = dragdropEventArgs.Effect;
}
return(true);
}
protected override bool OnKeyDown(KeyEventArgs eventArgs)
{
if ((eventArgs != null) && ((eventArgs.KeyCode == Keys.PageUp) || (eventArgs.KeyCode == Keys.Next)))
{
this.UpdateViewOnPageUpDown(eventArgs.KeyCode == Keys.PageUp);
}
ISelectionService service = ((IServiceProvider)base.ParentView).GetService(typeof(ISelectionService)) as ISelectionService;
if (eventArgs.KeyCode == Keys.Enter)
{
IDesigner designer = ActivityDesigner.GetDesigner(service.PrimarySelection as Activity);
if (designer != null)
{
designer.DoDefaultAction();
eventArgs.Handled = true;
}
}
else if (eventArgs.KeyCode == Keys.Escape)
{
if (!eventArgs.Handled)
{
CompositeActivityDesigner parentDesigner = ActivityDesigner.GetParentDesigner(service.PrimarySelection);
if (parentDesigner != null)
{
service.SetSelectedComponents(new object[] { parentDesigner.Activity }, SelectionTypes.Replace);
}
eventArgs.Handled = true;
}
}
else if (eventArgs.KeyCode == Keys.Delete)
{
IDesignerHost host = ((IServiceProvider)base.ParentView).GetService(typeof(IDesignerHost)) as IDesignerHost;
if ((host != null) && !service.GetComponentSelected(host.RootComponent))
{
ICollection selectedComponents = service.GetSelectedComponents();
if (DesignerHelpers.AreComponentsRemovable(selectedComponents))
{
List <Activity> activities = new List <Activity>(Helpers.GetTopLevelActivities(service.GetSelectedComponents()));
bool flag = activities.Count > 0;
foreach (DictionaryEntry entry in Helpers.PairUpCommonParentActivities(activities))
{
CompositeActivityDesigner designer3 = ActivityDesigner.GetDesigner(entry.Key as Activity) as CompositeActivityDesigner;
if ((designer3 != null) && !designer3.CanRemoveActivities(new List <Activity>((Activity[])((ArrayList)entry.Value).ToArray(typeof(Activity))).AsReadOnly()))
{
flag = false;
}
}
if (flag)
{
List <ConnectorHitTestInfo> components = new List <ConnectorHitTestInfo>();
foreach (object obj2 in selectedComponents)
{
ConnectorHitTestInfo item = obj2 as ConnectorHitTestInfo;
if (item != null)
{
components.Add(item);
}
}
CompositeActivityDesigner.RemoveActivities(base.ParentView, activities.AsReadOnly(), SR.GetString("DeletingActivities"));
if ((service != null) && (components.Count > 0))
{
service.SetSelectedComponents(components, SelectionTypes.Add);
}
eventArgs.Handled = true;
}
}
}
}
else if (((eventArgs.KeyCode == Keys.Left) || (eventArgs.KeyCode == Keys.Right)) || (((eventArgs.KeyCode == Keys.Up) || (eventArgs.KeyCode == Keys.Down)) || (eventArgs.KeyCode == Keys.Tab)))
{
ActivityDesigner designer4 = ActivityDesigner.GetDesigner(service.PrimarySelection as Activity);
if ((designer4 != null) && (designer4.ParentDesigner != null))
{
((IWorkflowDesignerMessageSink)designer4.ParentDesigner).OnKeyDown(eventArgs);
eventArgs.Handled = true;
}
}
if (!eventArgs.Handled)
{
ActivityDesigner designerWithFocus = this.GetDesignerWithFocus();
if (designerWithFocus != null)
{
((IWorkflowDesignerMessageSink)designerWithFocus).OnKeyDown(eventArgs);
}
}
return(eventArgs.Handled);
}
protected override bool OnKeyDown(KeyEventArgs eventArgs)
{
if (eventArgs != null && (eventArgs.KeyCode == Keys.PageUp || eventArgs.KeyCode == Keys.PageDown))
{
UpdateViewOnPageUpDown(eventArgs.KeyCode == Keys.PageUp);
}
ISelectionService selectionService = ((IServiceProvider)this.ParentView).GetService(typeof(ISelectionService)) as ISelectionService;
//enter key (
if (eventArgs.KeyCode == Keys.Enter)
{
// on enter key we want to do DoDefault of the designer
IDesigner designer = ActivityDesigner.GetDesigner(selectionService.PrimarySelection as Activity) as IDesigner;
if (designer != null)
{
designer.DoDefaultAction();
eventArgs.Handled = true;
}
}
else if (eventArgs.KeyCode == Keys.Escape)
{
if (!eventArgs.Handled)
{
CompositeActivityDesigner parentDesigner = ActivityDesigner.GetParentDesigner(selectionService.PrimarySelection);
if (parentDesigner != null)
{
selectionService.SetSelectedComponents(new object[] { parentDesigner.Activity }, SelectionTypes.Replace);
}
eventArgs.Handled = true;
}
}
else if (eventArgs.KeyCode == Keys.Delete)
{
// check if we are cutting root component
IDesignerHost designerHost = ((IServiceProvider)this.ParentView).GetService(typeof(IDesignerHost)) as IDesignerHost;
if (!(designerHost == null || selectionService.GetComponentSelected(designerHost.RootComponent)))
{
//Check that we are cutting all activities
//Check if we are in writable context
ICollection components = selectionService.GetSelectedComponents();
if (DesignerHelpers.AreComponentsRemovable(components))
{
// check if we can delete these
List <Activity> topLevelActivities = new List <Activity>(Helpers.GetTopLevelActivities(selectionService.GetSelectedComponents()));
bool needToDelete = (topLevelActivities.Count > 0);
IDictionary commonParentActivities = Helpers.PairUpCommonParentActivities(topLevelActivities);
foreach (DictionaryEntry entry in commonParentActivities)
{
CompositeActivityDesigner compositeActivityDesigner = ActivityDesigner.GetDesigner(entry.Key as Activity) as CompositeActivityDesigner;
if (compositeActivityDesigner != null && !compositeActivityDesigner.CanRemoveActivities(new List <Activity>((Activity[])((ArrayList)entry.Value).ToArray(typeof(Activity))).AsReadOnly()))
{
needToDelete = false;
}
}
if (needToDelete)
{
List <ConnectorHitTestInfo> connectors = new List <ConnectorHitTestInfo>();
foreach (object component in components)
{
ConnectorHitTestInfo connector = component as ConnectorHitTestInfo;
if (connector != null)
{
connectors.Add(connector);
}
}
//cache selcted connectors before calling this func
CompositeActivityDesigner.RemoveActivities((IServiceProvider)this.ParentView, topLevelActivities.AsReadOnly(), SR.GetString(SR.DeletingActivities));
//add connectors back to the selection service
if (selectionService != null && connectors.Count > 0)
{
selectionService.SetSelectedComponents(connectors, SelectionTypes.Add);
}
eventArgs.Handled = true;
}
}
}
}
//navigation (left, right, up, down, tab, shift-tab)
else if (eventArgs.KeyCode == Keys.Left || eventArgs.KeyCode == Keys.Right || eventArgs.KeyCode == Keys.Up || eventArgs.KeyCode == Keys.Down || eventArgs.KeyCode == Keys.Tab)
{
//we'll pass it to the parent designer of the primary selected designer
//sequential designers just navigate between their children
//free form designers may move their children on arrow keys and navigate on tab
ActivityDesigner designer = ActivityDesigner.GetDesigner(selectionService.PrimarySelection as Activity) as ActivityDesigner;
if (designer != null && designer.ParentDesigner != null)
{
//we will let the parent see if it wants to handle the event,
//otherwise the selected designer itself will be called from a designer message filter below
((IWorkflowDesignerMessageSink)designer.ParentDesigner).OnKeyDown(eventArgs);
eventArgs.Handled = true;
}
}
if (!eventArgs.Handled)
{
ActivityDesigner designerWithFocus = GetDesignerWithFocus();
if (designerWithFocus != null)
{
((IWorkflowDesignerMessageSink)designerWithFocus).OnKeyDown(eventArgs);
}
}
return(eventArgs.Handled);
}
