public void Load(string fileName)
{
if (string.IsNullOrEmpty(fileName))
{
throw FxTrace.Exception.AsError(new ArgumentNullException("fileName"));
}
DesignerConfigurationService service = this.Context.Services.GetService<DesignerConfigurationService>();
service.SetDefaultOfLoadingFromUntrustedSourceEnabled();
if (!service.LoadingFromUntrustedSourceEnabled && !IsFromUnrestrictedPath(fileName))
{
throw FxTrace.Exception.AsError(new SecurityException(string.Format(CultureInfo.CurrentUICulture, SR.UntrustedSourceDetected, fileName)));
}
try
{
IDocumentPersistenceService documentPersistenceService = this.Context.Services.GetService<IDocumentPersistenceService>();
if (documentPersistenceService != null)
{
this.Load(documentPersistenceService.Load(fileName));
}
else
{
using (StreamReader fileStream = new StreamReader(fileName))
{
this.loadedFile = fileName;
WorkflowFileItem fileItem = new WorkflowFileItem();
fileItem.LoadedFile = fileName;
this.context.Items.SetValue(fileItem);
this.Text = fileStream.ReadToEnd();
this.Load();
}
}
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
else
{
this.Context.Items.SetValue(new ErrorItem() { Message = e.Message, Details = e.ToString() });
}
}
if (!this.IsInErrorState())
{
this.lastWorkflowSymbol = GetAttachedWorkflowSymbol();
if (this.debuggerService != null)
{
this.debuggerService.InvalidateSourceLocationMapping(fileName);
}
}
}
// For most of the time, we need source location for object that appear on XAML.
// During debugging, however, we must not transform the internal activity to their origin to make sure it stop when the internal activity is about the execute
// Therefore, in debugger scenario, translateInternalActivityToOrigin will be set to false.
internal static Dictionary<object, SourceLocation> GetSourceLocations(Activity rootActivity, WorkflowSymbol symbol, bool translateInternalActivityToOrigin)
{
Activity workflowRoot = rootActivity.RootActivity ?? rootActivity;
if (!workflowRoot.IsMetadataFullyCached)
{
IList<ValidationError> validationErrors = null;
ActivityUtilities.CacheRootMetadata(workflowRoot, new ActivityLocationReferenceEnvironment(), ProcessActivityTreeOptions.ValidationOptions, null, ref validationErrors);
}
Dictionary<object, SourceLocation> newMapping = new Dictionary<object, SourceLocation>();
// Make sure the qid we are using to TryGetElementFromRoot
// are shifted appropriately such that the first digit that QID is
// the same as the last digit of the rootActivity.QualifiedId.
int[] rootIdArray = rootActivity.QualifiedId.AsIDArray();
int idOffset = rootIdArray[rootIdArray.Length - 1] - 1;
foreach (ActivitySymbol actSym in symbol.Symbols)
{
QualifiedId qid = new QualifiedId(actSym.QualifiedId);
if (idOffset != 0)
{
int[] idArray = qid.AsIDArray();
idArray[0] += idOffset;
qid = new QualifiedId(idArray);
}
Activity activity;
if (QualifiedId.TryGetElementFromRoot(rootActivity, qid, out activity))
{
object origin = activity;
if (translateInternalActivityToOrigin && activity.Origin != null)
{
origin = activity.Origin;
}
newMapping.Add(origin,
new SourceLocation(symbol.FileName, symbol.GetChecksum(), actSym.StartLine, actSym.StartColumn, actSym.EndLine, actSym.EndColumn));
}
}
return newMapping;
}
// This supports loading objects instead of xaml into the designer
public void Load(object instance)
{
if (isLoaded)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.WorkflowDesignerLoadShouldBeCalledOnlyOnce));
}
isLoaded = true;
if (instance == null)
{
throw FxTrace.Exception.AsError(new ArgumentNullException("instance"));
}
DesignerConfigurationService configurationService = this.context.Services.GetService<DesignerConfigurationService>();
configurationService.ApplyDefaultPreference();
// Because we want AutoConnect/AutoSplit to be on even in Dev10 if PU1 is installed.
// But we cannot know whether PU1 is installed or not, we decide to enable these 2 features for all Dev10.
if (configurationService.WorkflowDesignerHostId == WorkflowDesignerHostId.Dev10)
{
configurationService.AutoConnectEnabled = true;
configurationService.AutoSplitEnabled = true;
}
configurationService.IsWorkflowLoaded = true;
configurationService.Validate();
if (this.PreviewLoad != null)
{
this.PreviewLoad(this, new PreviewLoadEventArgs(instance, this.context));
}
if (configurationService.TargetFrameworkName.IsLessThan45())
{
TargetFrameworkPropertyFilter.FilterOut45Properties();
}
modelTreeManager = new ModelTreeManager(this.context);
modelTreeManager.Load(instance);
this.context.Services.Publish(typeof(ModelTreeManager), modelTreeManager);
viewManager = GetViewManager(this.modelTreeManager.Root);
this.context.Services.Publish<ModelSearchService>(this.ModelSearchService);
view.Children.Add((UIElement)viewManager.View);
modelTreeManager.EditingScopeCompleted += new EventHandler<EditingScopeEventArgs>(OnEditingScopeCompleted);
this.view.Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle,
new Action(() => { this.perfEventProvider.WorkflowDesignerApplicationIdleAfterLoad(); }));
//Subscribe to the ViewStateChanged event of ViewStateService to show document dirty. It would be published in the call to GetViewManager().
WorkflowViewStateService wfViewStateService = this.Context.Services.GetService(typeof(ViewStateService)) as WorkflowViewStateService;
if (wfViewStateService != null)
{
wfViewStateService.UndoableViewStateChanged += new ViewStateChangedEventHandler(OnViewStateChanged);
}
this.isModelChanged = false;
if (!this.IsInErrorState())
{
this.lastWorkflowSymbol = GetAttachedWorkflowSymbol();
}
}
public static Dictionary<object, SourceLocation> GetSourceLocations(Activity rootActivity, WorkflowSymbol symbol)
{
return GetSourceLocations(rootActivity, symbol, translateInternalActivityToOrigin: true);
}
public void Load()
{
this.perfEventProvider.WorkflowDesignerLoadStart();
if (!string.IsNullOrEmpty(this.text))
{
try
{
this.perfEventProvider.WorkflowDesignerDeserializeStart();
IList<XamlLoadErrorInfo> loadErrors;
Dictionary<object, SourceLocation> sourceLocations;
object deserializedObject = DeserializeString(this.text, out loadErrors, out sourceLocations);
this.perfEventProvider.WorkflowDesignerDeserializeEnd();
if (deserializedObject != null)
{
this.Load(deserializedObject);
this.ValidationService.ValidateWorkflow(ValidationReason.Load);
}
else
{
StringBuilder details = new StringBuilder();
foreach (XamlLoadErrorInfo error in loadErrors)
{
details.AppendLine(error.Message);
}
this.Context.Items.SetValue(new ErrorItem() { Message = SR.SeeErrorWindow, Details = details.ToString() });
}
if (loadErrors != null)
{
RaiseLoadErrors(loadErrors);
}
this.isModelChanged = false;
}
catch (Exception e)
{
this.Context.Items.SetValue(new ErrorItem() { Message = e.Message, Details = e.ToString() });
RaiseLoadError(e);
}
}
else
{
this.Context.Items.SetValue(new ErrorItem() { Message = string.Empty, Details = string.Empty });
}
if (this.IsInErrorState())
{
// Clear workflow symbol in case ErrorState changes during validation
this.lastWorkflowSymbol = null;
}
this.perfEventProvider.WorkflowDesignerLoadComplete();
}