Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / Tools / System.Activities.Presentation / System / Activities / Presentation / View / WorkflowViewManager.cs / 1407647 / WorkflowViewManager.cs
//---------------------------------------------------------------- // Copyright (c) Microsoft Corporation. All rights reserved. //--------------------------------------------------------------- namespace System.Activities.Presentation.View { using System.Windows; using System.Windows.Media; using System.Windows.Media.Effects; using System.Windows.Documents; using System.Activities.Presentation; using System.Activities.Presentation.View; using System.Activities.Presentation.Hosting; using System.Activities.Presentation.Model; using System.Activities.Presentation.Documents; using System.Activities.Presentation.Services; using System.Collections.ObjectModel; using System.Collections; using System.Collections.Generic; using System.Runtime; using System.ComponentModel.Design; internal class WorkflowViewManager : ViewManager { const string KeywordForWorkflowDesignerHomePage = "DefaultWorkflowDesigner"; EditingContext context; Selection oldSelection; ModelService modelService; System.Activities.Presentation.View.DesignerView view; AttachedPropertyisPrimarySelectionProperty; AttachedProperty isSelectionProperty; IIntegratedHelpService helpService; public override System.Windows.Media.Visual View { get { return view; } } public override void Initialize(EditingContext context) { this.context = context; AttachedPropertiesService propertiesService = this.context.Services.GetService (); helpService = this.context.Services.GetService (); oldSelection = this.context.Items.GetValue (); isPrimarySelectionProperty = new AttachedProperty () { Getter = (modelItem) => (this.context.Items.GetValue ().PrimarySelection == modelItem), Name = "IsPrimarySelection", OwnerType = typeof(Object) }; isSelectionProperty = new AttachedProperty () { Getter = (modelItem) => (((IList)this.context.Items.GetValue ().SelectedObjects).Contains(modelItem)), Name = "IsSelection", OwnerType = typeof(Object) }; propertiesService.AddProperty(isPrimarySelectionProperty); propertiesService.AddProperty(isSelectionProperty); if (this.context.Services.GetService () == null) { view = new System.Activities.Presentation.View.DesignerView(this.context); WorkflowViewService viewService = new WorkflowViewService(context); WorkflowViewStateService viewStateService = new WorkflowViewStateService(context); this.context.Services.Publish (viewService); this.context.Services.Publish (new VirtualizedContainerService(this.context)); this.context.Services.Publish (viewStateService); this.context.Services.Publish (view); this.context.Services.Subscribe (delegate(ModelService modelService) { this.modelService = modelService; if (modelService.Root != null) { view.MakeRootDesigner(modelService.Root); } view.RestoreDesignerStates(); this.context.Items.Subscribe (new SubscribeContextCallback (OnItemSelected)); }); } if (helpService != null) { helpService.AddContextAttribute(string.Empty, KeywordForWorkflowDesignerHomePage, HelpKeywordType.F1Keyword); } } internal static string GetF1HelpTypeKeyword(Type type) { Fx.Assert(type != null, "type is null"); if (type.IsGenericType) { Type genericTypeDefinition = type.GetGenericTypeDefinition(); return genericTypeDefinition.FullName; } return type.FullName; } void OnItemSelected(Selection newSelection) { Fx.Assert(newSelection != null, "newSelection is null"); IList newSelectionObjects = newSelection.SelectedObjects as IList ; IList oldSelectionObjects = oldSelection.SelectedObjects as IList ; //Call notifyPropertyChanged for IsPrimarySelection attached property. if (newSelection.PrimarySelection != null && !newSelection.PrimarySelection.Equals(oldSelection.PrimarySelection)) { isPrimarySelectionProperty.NotifyPropertyChanged(oldSelection.PrimarySelection); isPrimarySelectionProperty.NotifyPropertyChanged(newSelection.PrimarySelection); } else if (newSelection.PrimarySelection == null) { isPrimarySelectionProperty.NotifyPropertyChanged(oldSelection.PrimarySelection); } //call NotifyPropertyChanged for IsSelection property on ModelItems that were added or removed from selection. HashSet selectionChangeSet = new HashSet (oldSelectionObjects); selectionChangeSet.SymmetricExceptWith(newSelectionObjects); foreach (ModelItem selectionChangeMI in selectionChangeSet) { isSelectionProperty.NotifyPropertyChanged(selectionChangeMI); } if (helpService != null) { if (oldSelection.PrimarySelection != null) { helpService.RemoveContextAttribute(string.Empty, GetF1HelpTypeKeyword(oldSelection.PrimarySelection.ItemType)); } if (newSelection.PrimarySelection != null) { helpService.AddContextAttribute(string.Empty, GetF1HelpTypeKeyword(newSelection.PrimarySelection.ItemType), HelpKeywordType.F1Keyword); } } oldSelection = newSelection; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- WorkflowServiceInstance.cs
- securitycriticaldataformultiplegetandset.cs
- ViewDesigner.cs
- TagMapCollection.cs
- ComplexBindingPropertiesAttribute.cs
- HeaderUtility.cs
- FrameworkTemplate.cs
- OwnerDrawPropertyBag.cs
- ImageButton.cs
- CodeMethodInvokeExpression.cs
- WmlValidatorAdapter.cs
- OutputCacheSection.cs
- ReadOnlyDataSourceView.cs
- DecimalStorage.cs
- objectresult_tresulttype.cs
- InputGestureCollection.cs
- RectAnimation.cs
- IntPtr.cs
- ResourceKey.cs
- DataGridViewCellCollection.cs
- COM2FontConverter.cs
- DataAdapter.cs
- WebPartManager.cs
- FormView.cs
- MatrixStack.cs
- ConfigurationSchemaErrors.cs
- UshortList2.cs
- UrlMapping.cs
- ListViewGroupItemCollection.cs
- StatusBarDrawItemEvent.cs
- NameValueSectionHandler.cs
- XmlIlGenerator.cs
- TextFormatterImp.cs
- returneventsaver.cs
- ResourcePart.cs
- QueryableDataSourceHelper.cs
- DesignerActionTextItem.cs
- LocalizabilityAttribute.cs
- CharAnimationUsingKeyFrames.cs
- BinaryObjectReader.cs
- Cursor.cs
- HttpListenerException.cs
- PointF.cs
- ContextProperty.cs
- PieceNameHelper.cs
- basevalidator.cs
- FixedSOMFixedBlock.cs
- InnerItemCollectionView.cs
- HtmlEmptyTagControlBuilder.cs
- StatusBarAutomationPeer.cs
- Form.cs
- ColumnMapVisitor.cs
- ValidatingReaderNodeData.cs
- IssuanceLicense.cs
- Nodes.cs
- EntityCommand.cs
- XmlElementAttribute.cs
- LocatorGroup.cs
- QilValidationVisitor.cs
- BrowserCapabilitiesFactoryBase.cs
- InstanceNormalEvent.cs
- RecordsAffectedEventArgs.cs
- grammarelement.cs
- ResourceBinder.cs
- ContainerVisual.cs
- XamlStyleSerializer.cs
- OleDbError.cs
- oledbconnectionstring.cs
- ControlAdapter.cs
- XmlUtilWriter.cs
- ThreadStartException.cs
- basecomparevalidator.cs
- StrokeFIndices.cs
- SecurityCriticalDataForSet.cs
- StringBlob.cs
- MetadataArtifactLoaderCompositeFile.cs
- EnumerableCollectionView.cs
- MenuItem.cs
- Util.cs
- DateTimeConverter2.cs
- SqlCommandSet.cs
- sapiproxy.cs
- EntityPropertyMappingAttribute.cs
- CounterSampleCalculator.cs
- InvokeHandlers.cs
- TrackingRecordPreFilter.cs
- TableLayoutPanelCellPosition.cs
- StorageEntityTypeMapping.cs
- CompiledELinqQueryState.cs
- Vector3DValueSerializer.cs
- MenuAdapter.cs
- MobileControlsSection.cs
- Variant.cs
- WorkflowOperationErrorHandler.cs
- ConfigXmlText.cs
- ChildDocumentBlock.cs
- SettingsPropertyIsReadOnlyException.cs
- Serializer.cs
- TransactionManager.cs
- SettingsPropertyNotFoundException.cs