Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Common / AuthoringOM / Design / SequenceDesignerAccessibleObject.cs / 1305376 / SequenceDesignerAccessibleObject.cs
#pragma warning disable 1634, 1691 namespace System.Workflow.ComponentModel.Design { using System; using System.IO; using System.Drawing; using System.CodeDom; using System.Diagnostics; using System.Collections; using System.Collections.Generic; using System.Windows.Forms; using System.ComponentModel; using System.Globalization; using System.Drawing.Design; using System.Drawing.Imaging; using System.Drawing.Drawing2D; using System.Windows.Forms.Design; using System.ComponentModel.Design; using System.Collections.Specialized; using System.ComponentModel.Design.Serialization; using System.Workflow.ComponentModel.Compiler; using System.Workflow.ComponentModel.Serialization; using System.Collections.ObjectModel; using System.Reflection; using System.Workflow.ComponentModel.Design; using System.Runtime.Serialization.Formatters.Binary; // #region Class SequenceDesignerAccessibleObject ////// Accessibility object class associated with SequentialActivityDesigner /// public class SequenceDesignerAccessibleObject : CompositeDesignerAccessibleObject { public SequenceDesignerAccessibleObject(SequentialActivityDesigner activityDesigner) : base(activityDesigner) { } public override AccessibleObject GetChild(int index) { SequentialActivityDesigner sequentialActivityDesigner = base.ActivityDesigner as SequentialActivityDesigner; if (sequentialActivityDesigner.ActiveDesigner != sequentialActivityDesigner) return base.GetChild(index); if (index >= 0 && index < GetChildCount() && ((index % 2) == 0)) return new SequentialConnectorAccessibleObject(base.ActivityDesigner as SequentialActivityDesigner, index / 2); else return base.GetChild(index / 2); } public override int GetChildCount() { SequentialActivityDesigner sequentialActivityDesigner = base.ActivityDesigner as SequentialActivityDesigner; if (sequentialActivityDesigner.ActiveDesigner != sequentialActivityDesigner) return base.GetChildCount(); //We also create create a accessible object for each connector if (sequentialActivityDesigner != null) return sequentialActivityDesigner.ContainedDesigners.Count + sequentialActivityDesigner.ContainedDesigners.Count + 1; else return -1; } public override AccessibleObject Navigate(AccessibleNavigation navdir) { if (navdir == AccessibleNavigation.Up || navdir == AccessibleNavigation.Previous || navdir == AccessibleNavigation.Down || navdir == AccessibleNavigation.Next) { DesignerNavigationDirection navigate = default(DesignerNavigationDirection); if (navdir == AccessibleNavigation.Up || navdir == AccessibleNavigation.Previous) navigate = DesignerNavigationDirection.Up; else navigate = DesignerNavigationDirection.Down; CompositeActivityDesigner compositeDesigner = this.ActivityDesigner.ParentDesigner; if (compositeDesigner != null) { object nextSelectableObj = compositeDesigner.GetNextSelectableObject(this.ActivityDesigner.Activity, navigate); if (nextSelectableObj is ConnectorHitTestInfo) return GetChild(((ConnectorHitTestInfo)nextSelectableObj).MapToIndex()); } } return base.Navigate(navdir); } #region Class SequentialConnectorAccessibleObject private sealed class SequentialConnectorAccessibleObject : AccessibleObject { private ConnectorHitTestInfo connectorHitInfo; internal SequentialConnectorAccessibleObject(SequentialActivityDesigner activityDesigner, int connectorIndex) { if (activityDesigner == null) throw new ArgumentNullException("activityDesigner"); this.connectorHitInfo = new ConnectorHitTestInfo(activityDesigner, HitTestLocations.Designer, connectorIndex); } public override Rectangle Bounds { get { return ((SequentialActivityDesigner)this.connectorHitInfo.AssociatedDesigner).InternalRectangleToScreen(this.connectorHitInfo.Bounds); } } public override string DefaultAction { get { return DR.GetString(DR.AccessibleAction); } } public override string Description { get { return DR.GetString(DR.ConnectorAccessibleDescription, this.connectorHitInfo.GetType().Name); } } public override string Help { get { return DR.GetString(DR.ConnectorAccessibleHelp, this.connectorHitInfo.GetType().Name); } } public override string Name { get { return DR.GetString(DR.ConnectorDesc, this.connectorHitInfo.MapToIndex().ToString(CultureInfo.InvariantCulture), Parent.Name); } set { } } public override AccessibleObject Parent { get { return this.connectorHitInfo.AssociatedDesigner.AccessibilityObject; } } public override AccessibleRole Role { get { return AccessibleRole.Diagram; } } public override AccessibleStates State { get { AccessibleStates state = AccessibleStates.MultiSelectable; if (this.connectorHitInfo.AssociatedDesigner.IsLocked) state |= AccessibleStates.ReadOnly; if (!this.connectorHitInfo.AssociatedDesigner.IsVisible) state |= AccessibleStates.Invisible; ISelectionService selectionService = GetService(typeof(ISelectionService)) as ISelectionService; if (selectionService != null) { state |= (selectionService.GetComponentSelected(this.connectorHitInfo.SelectableObject)) ? AccessibleStates.Selected : AccessibleStates.Selectable; state |= (selectionService.PrimarySelection == this.connectorHitInfo.SelectableObject) ? AccessibleStates.Focused : AccessibleStates.Focusable; } return state; } } public override void DoDefaultAction() { ISelectionService selectionService = GetService(typeof(ISelectionService)) as ISelectionService; if (selectionService != null) selectionService.SetSelectedComponents(new object[] { this.connectorHitInfo.SelectableObject }, SelectionTypes.Replace); else base.DoDefaultAction(); } public override AccessibleObject Navigate(AccessibleNavigation navdir) { if (navdir == AccessibleNavigation.FirstChild || navdir == AccessibleNavigation.LastChild) return base.Navigate(navdir); DesignerNavigationDirection navigate = default(DesignerNavigationDirection); if (navdir == AccessibleNavigation.Left) navigate = DesignerNavigationDirection.Left; else if (navdir == AccessibleNavigation.Right) navigate = DesignerNavigationDirection.Right; else if (navdir == AccessibleNavigation.Up || navdir == AccessibleNavigation.Previous) navigate = DesignerNavigationDirection.Up; else if (navdir == AccessibleNavigation.Down || navdir == AccessibleNavigation.Next) navigate = DesignerNavigationDirection.Down; object nextSelectableObj = ((CompositeActivityDesigner)this.connectorHitInfo.AssociatedDesigner).GetNextSelectableObject(this.connectorHitInfo, navigate); if (nextSelectableObj is ConnectorHitTestInfo) { ConnectorHitTestInfo nextConnector = nextSelectableObj as ConnectorHitTestInfo; return new SequentialConnectorAccessibleObject(nextConnector.AssociatedDesigner as SequentialActivityDesigner, nextConnector.MapToIndex()); } else if (nextSelectableObj is Activity) { ActivityDesigner activityDesigner = ActivityDesigner.GetDesigner(nextSelectableObj as Activity); if (activityDesigner != null) return activityDesigner.AccessibilityObject; } return base.Navigate(navdir); } public override void Select(AccessibleSelection flags) { ISelectionService selectionService = GetService(typeof(ISelectionService)) as ISelectionService; if (selectionService != null) { if (((flags & AccessibleSelection.TakeFocus) > 0) || ((flags & AccessibleSelection.TakeSelection) > 0)) selectionService.SetSelectedComponents(new object[] { this.connectorHitInfo.SelectableObject }, SelectionTypes.Replace); else if ((flags & AccessibleSelection.AddSelection) > 0) selectionService.SetSelectedComponents(new object[] { this.connectorHitInfo.SelectableObject }, SelectionTypes.Add); else if ((flags & AccessibleSelection.RemoveSelection) > 0) selectionService.SetSelectedComponents(new object[] { this.connectorHitInfo.SelectableObject }, SelectionTypes.Remove); } } private object GetService(Type serviceType) { if (this.connectorHitInfo.AssociatedDesigner != null && this.connectorHitInfo.AssociatedDesigner.Activity.Site != null) return this.connectorHitInfo.AssociatedDesigner.Activity.Site.GetService(serviceType); else return null; } } #endregion } #endregion } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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